CN110211735B - Cable with improved insulation - Google Patents
Cable with improved insulation Download PDFInfo
- Publication number
- CN110211735B CN110211735B CN201910537114.2A CN201910537114A CN110211735B CN 110211735 B CN110211735 B CN 110211735B CN 201910537114 A CN201910537114 A CN 201910537114A CN 110211735 B CN110211735 B CN 110211735B
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- connecting part
- cable
- cable core
- connecting portion
- cavity
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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
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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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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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
- H01B7/36—Insulated conductors or cables characterised by their form with distinguishing or length marks
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Abstract
The invention discloses a cable, which comprises more than one strand of cable core wires which are distributed annularly, wherein a gap cavity is formed between every two adjacent cable core wires, a connecting part is arranged in each gap cavity, the two sides of each connecting part are respectively connected with the cable core wires, each cable core wire forms a closed middle cavity through more than one connecting part, more than one sealing part is arranged in the closed middle cavity at equal intervals along the length direction, the middle cavities are divided into a plurality of independent storage cavities by the sealing parts, each storage cavity is filled with mixed media, part of each strand of cable core wire extends out of the connecting part, part of each strand of cable core wire extends into the middle cavity, and the middle of one connecting part is broken to form a first connecting part and a second connecting part. The cable disclosed by the invention has very high compression-resistant buffering capacity, can effectively warn and remind after being sheared, prevents further shearing, has very good fireproof performance and greatly increases fireproof capacity.
Description
Technical Field
The present invention relates to a cable.
Background
There are many types of cables, including communication cables and distribution cables, which are largely similar in structure and generally include an outer protective layer and a core mounted within the protective layer. Such structures have common problems in use, such as: because the core wire is arranged in the protective layer, the core wire can be directly pressed after the protective layer is pressed, so that the core wire is damaged, and the compression-resistant buffering capacity is poor; in addition, because the fire resistance of the protective layer is limited, when flame exists outside, the whole outer layer can be burnt, the fire can easily spread, and further, the core wire of the internal cable can be burnt, so that serious economic loss is caused; moreover, the cable buried in the ground often meets the situation that the cable is directly cut off due to the fact that external operation equipment is cut outside the cable through misoperation, the result is simple, the cable does not have the capacity of yielding and deforming, once the cable is contacted, no prompt is provided, the cable cannot be found until the cable is continuously cut and damaged, and if general constructors can stop in time when the cable is just contacted, the situation that the cable is continuously cut can be effectively avoided.
Disclosure of Invention
The invention aims to provide a cable which adopts an elastic vacuum structure and can effectively overcome a plurality of defects in the prior art.
The invention is realized by the following technical scheme: the utility model provides a cable, including being the more than one cable conductor that the annular distributes and set up, all form a clearance cavity between the adjacent cable conductor, every clearance cavity all sets up a connecting portion, the cable conductor is connected respectively to the connecting portion both sides, each cable conductor forms a confined middle chamber through the connecting portion more than one, this confined middle intracavity portion is provided with the sealing of more than one along length direction equidistance, the sealing is cut apart into a plurality of independent storage chambeies with middle chamber, every stores the intracavity and all fills mixed medium, every cable conductor part stretches out in the outside of connecting portion, the part stretches into in middle intracavity, the centre of one of them connecting portion breaks and forms first connecting portion and second connecting portion, splice and seal mutually between first connecting portion and the second connecting portion.
As an optimized technical scheme, the first connecting part and the second connecting part are spliced in a staggered mode, and the splicing surfaces of the first connecting part and the second connecting part are fixed in an attracting mode through a magnetic attraction structure.
As preferred technical scheme, the structure is inhaled to magnetism sets up in the inside first magnetic force strip of first connecting portion including the embedding to and imbed in the inside second magnetic force strip of second connecting portion, the relative second magnetic force strip of first magnetic force strip sets up, and first magnetic force strip and the actuation of second magnetic force strip each other, and the splice surface of first connecting portion and second connecting portion all bonds and has the one deck silica gel sealing layer, and it is sealed through the contact of silica gel sealing layer between first connecting portion and the second connecting portion, and first magnetic force strip and second magnetic force strip pass the actuation of silica gel sealing layer contact respectively.
As the preferred technical scheme, the two sides of the connecting part are respectively provided with an arc-shaped contact part, and the arc-shaped concave surface of the arc-shaped contact part is in meshing contact with the cable core wire and is fixedly sealed by glue.
As a preferred technical scheme, the splicing surface of the first connecting part is positioned at the bottom of the second connecting part, and the first connecting part is separated from the second connecting part when the first connecting part is pressed downwards.
As a preferred technical scheme, the mixed medium comprises inert gas and colored powder.
As the preferred technical scheme, more than one through hole is formed in each connecting portion, the outer side ends of the through holes are sealed through elastic rubber layers, the elastic rubber layers are circular, the outer diameter of each elastic rubber layer is larger than the inner diameter of each through hole, the elastic rubber layers are bonded to the outer wall surfaces of the connecting portions through glue, and the elastic rubber layers are bulged outwards through inert gas filled in the elastic rubber layers.
According to a preferable technical scheme, the sealing parts are all made of elastic rubber sheets, the positions, corresponding to the cable cores and the arc-shaped contact parts, of the outer wall surfaces of the sealing parts are respectively provided with a yielding notch, and the outer wall surfaces of the whole sealing parts are glued and sealed and installed on the inner wall surface of the middle cavity.
The invention has the beneficial effects that:
the middle of the cable is filled with the mixed medium, so that the middle is hollow, the cable core wire is embedded in the tegument layer, and the internal yielding space is enlarged, so that the cable can have very elastic buffering force after being pressed and can resist shearing and extrusion;
secondly, because the filled medium is inert gas and colored powder, after the cable is sheared, the splicing section of the connecting part is opened, namely the colored powder can be sprayed out from the opening part by using gas pressure, and thus, a large amount of colored powder is sprayed out when the whole cable is not flattened, so that an operator can know in advance, the construction can be stopped in time, and the cable is prevented from being sheared continuously;
the elastic rubber layer can be opened when a fire disaster happens, and then the inert gas filled in the elastic rubber layer is sprayed out in a large amount, so that the oxygen amount near the cable can be effectively reduced, and the effective fire extinguishing capability is further realized.
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 structural view of the present invention with the sealing portion removed;
fig. 3 is a partial enlarged view of the invention at a in fig. 2.
Detailed Description
As shown in fig. 1 and fig. 2, a cable comprises more than one cable core 4 distributed annularly, a gap cavity is formed between adjacent cable cores 4, a connecting part 2 is arranged in each gap cavity, two sides of the connecting part 2 are respectively connected with the cable cores 4, each cable core 4 forms a closed middle cavity through more than one connecting part 2, more than one sealing part 13 is arranged in the sealed middle cavity at equal intervals along the length direction, the sealing parts 13 divide the middle cavity into a plurality of independent storage cavities 1, mixed media are filled in each storage cavity 1, part of each cable core wire 4 extends out of the connecting part 2, part of each cable core wire extends into the middle cavity, the middle of one of the connecting parts 2 is broken to form a first connecting part 11 and a second connecting part 12, and the first connecting part 11 and the second connecting part 12 are spliced and sealed with each other.
As shown in fig. 3, the first connecting portion 11 and the second connecting portion 12 are alternatively spliced, and the splicing surfaces are fixed by a magnetic structure, in this embodiment, the magnetic structure includes a first magnetic strip 8 embedded in the first connecting portion 11 and a second magnetic strip 9 embedded in the second connecting portion 12, the first magnetic strip 8 is disposed opposite to the second magnetic strip 9, and the first magnetic strip 8 and the second magnetic strip 9 are mutually attracted, a silica gel sealing layer (not shown) is bonded to the splicing surfaces of the first connecting portion 11 and the second connecting portion 12, the first connecting portion 11 and the second connecting portion 12 are sealed by the silica gel sealing layer, the first magnetic strip 8 and the second magnetic strip 9 respectively pass through the silica gel sealing layer to be contacted and attracted, when in normal use, the first connecting portion and the second connecting portion are sealed by the magnetic strip, the magnetic strengths of the two magnetic strips are as high as possible, can resist bigger decompression extrusion force like this, obtain better elastic buffer capacity, and in case shearing extrusion force is too big, can make first magnetic strip and the separation of second magnetic strip, concatenation department just can open like this, because inside has filled the mixed medium this moment, colored powder in the mixed medium can spout fast, constructor alright with clear seeing, and then stop the construction, safer.
Wherein, the both sides of connecting portion 2 set up an arc contact site 7 respectively, and the arc concave surface of arc contact site 7 and cable conductor 4 meshing contact and beat glue fixed seal, through arc contact site 7 increase with cable conductor 4's area of contact, obtain more assembly strength.
The splicing surface of the first connecting portion 11 is located at the bottom of the second connecting portion 12, the first connecting portion 11 is separated from the second connecting portion 12 when the first connecting portion is pressed downwards, therefore, the cable is laid according to the position, namely, when the first connecting portion is pressed downwards, the top of the whole cable is pressed, the first connecting portion is separated downwards, and the first connecting portion and the second connecting portion are not in contact sealing any more.
In this embodiment, the mixed medium includes inert gas and colored powder, and colored powder can be red, increases the visibility, and inert gas has two effects, and one is the fire extinguishing after spouting, and the other is to spout colored powder to the outside, obtains better field of vision.
Wherein, all seted up more than one through-hole 5 on connecting portion 2, the outside end of through-hole 5 is all sealed through an elastic rubber layer 3, elastic rubber layer 3 all is circularly, its external diameter is greater than the 5 internal diameters of through-hole, it bonds on the outer wall of connecting portion 2 through glue, elastic rubber layer 3 outwards heaves through the inert gas of inside packing, the inert gas volume of inside packing makes elastic rubber layer heaves as far as possible, alright have a pressure value like this, make in case elastic rubber layer is destroyed, can be so that gas and powder spun speed are bigger.
As shown in fig. 1, the sealing portions 13 are made of an elastic rubber sheet, and a relief notch 14 is formed in the outer wall surface of each sealing portion at a position corresponding to the cable core and the arc-shaped contact portion, and the outer wall surface of the whole sealing portion is glued and sealed on the inner wall surface of the middle cavity. The middle cavity is separated through the sealing part, all gas in the whole cable is prevented from leaking out at one time, local prompt and local fire extinguishing can be carried out, and waste of resources is reduced.
The invention has the beneficial effects that:
the middle of the cable is filled with the mixed medium, so that the middle is hollow, the cable core wire is embedded in the tegument layer, and the internal yielding space is enlarged, so that the cable can have very elastic buffering force after being pressed and can resist shearing and extrusion;
secondly, because the filled medium is inert gas and colored powder, after the cable is sheared, the splicing section of the connecting part is opened, namely the colored powder can be sprayed out from the opening part by using gas pressure, and thus, a large amount of colored powder is sprayed out when the whole cable is not flattened, so that an operator can know in advance, the construction can be stopped in time, and the cable is prevented from being sheared continuously;
the elastic rubber layer can be opened when a fire disaster happens, and then the inert gas filled in the elastic rubber layer is sprayed out in a large amount, so that the oxygen amount near the cable can be effectively reduced, and the effective fire extinguishing capability is further realized.
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 (6)
1. A cable, characterized by: the cable core wire cutting device comprises more than one strand of cable core wires which are distributed annularly, a gap cavity is formed between every two adjacent cable core wires, a connecting part is arranged in each gap cavity, the two sides of each connecting part are respectively connected with the cable core wires, each cable core wire forms a closed middle cavity through more than one connecting part, more than one sealing part is arranged in the closed middle cavity at equal intervals along the length direction, the middle cavities are divided into a plurality of independent storage cavities by the sealing parts, each storage cavity is filled with mixed media, part of each strand of cable core wire extends out of the connecting parts, part of each strand of cable core wire extends into the middle cavities, the middle of one connecting part is broken to form a first connecting part and a second connecting part, and the first connecting part and the second connecting part are spliced and sealed;
the first connecting part and the second connecting part are spliced in a staggered manner, and the spliced surfaces of the first connecting part and the second connecting part are sucked and fixed through a magnetic attraction structure;
the structure is inhaled to magnetism sets up in the inside first magnetic force strip of first connecting portion including the embedding to and imbed in the inside second magnetic force strip of second connecting portion, the relative second magnetic force strip of first magnetic force strip sets up, and first magnetic force strip and the actuation of second magnetic force strip mutually, and the concatenation face of first connecting portion and second connecting portion all bonds there is the one deck silica gel sealing layer, and it is sealed through the contact of silica gel sealing layer between first connecting portion and the second connecting portion, and first magnetic force strip and second magnetic force strip pass the actuation of silica gel sealing layer contact respectively.
2. A cable as claimed in claim 1, wherein: the two sides of the connecting part are respectively provided with an arc-shaped contact part, and the arc-shaped concave surface of the arc-shaped contact part is in meshing contact with the cable core wire and is sealed fixedly by glue.
3. A cable as claimed in claim 1, wherein: the splicing surface of the first connecting part is positioned at the bottom of the second connecting part, and the first connecting part is separated from the second connecting part when the first connecting part is pressed downwards.
4. A cable as claimed in claim 1, wherein: the mixing medium comprises inert gas and colored powder.
5. A cable as claimed in claim 1, wherein: the connecting portion are all provided with more than one through hole, the outer side end of each through hole is sealed through an elastic rubber layer, the elastic rubber layers are circular, the outer diameter of each elastic rubber layer is larger than the inner diameter of each through hole, the elastic rubber layers are bonded on the outer wall surface of the connecting portion through glue, and the elastic rubber layers are outwards bulged through inert gas filled inside.
6. A cable as claimed in claim 1, wherein: the sealing parts are all made of elastic rubber sheets, yielding notches are arranged at the positions, corresponding to the cable core wires and the arc-shaped contact parts, of the outer wall surfaces of the sealing parts, and the outer wall surfaces of the whole sealing parts are glued and sealed and installed on the inner wall surface of the middle cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910537114.2A CN110211735B (en) | 2019-06-20 | 2019-06-20 | Cable with improved insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910537114.2A CN110211735B (en) | 2019-06-20 | 2019-06-20 | Cable with improved insulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110211735A CN110211735A (en) | 2019-09-06 |
| CN110211735B true CN110211735B (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910537114.2A Active CN110211735B (en) | 2019-06-20 | 2019-06-20 | Cable with improved insulation |
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| Country | Link |
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| CN (1) | CN110211735B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110580980B (en) * | 2019-09-29 | 2020-12-08 | 江苏三旗线缆有限公司 | Flame-retardant and pressure-resistant cable |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9728302B1 (en) * | 2016-09-30 | 2017-08-08 | Superior Essex International IP | Flame retardant communication cables incorporating extinguishants |
| CN206236470U (en) * | 2016-11-30 | 2017-06-09 | 珠海思科信电线电缆有限公司 | Buried anti-shearing cable |
| CN108630349B (en) * | 2018-04-26 | 2019-11-05 | 东阳市天齐知识产权运营有限公司 | Composite radiating cable |
| CN108806868B (en) * | 2018-06-15 | 2020-02-07 | 上海沪达高温线缆有限公司 | Composite cable |
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2019
- 2019-06-20 CN CN201910537114.2A patent/CN110211735B/en active Active
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| Publication number | Publication date |
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| CN110211735A (en) | 2019-09-06 |
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Effective date of registration: 20200730 Address after: 322100 Hutang No. 1, Shanglu Community, Jiangbei Street, Dongyang City, Jinhua City, Zhejiang Province Applicant after: DONGYANG YANGTAO ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 322100 Hutang No. 1, Shanglu Community, Jiangbei Street, Dongyang City, Jinhua City, Zhejiang Province Applicant before: Xu Liping |
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Effective date of registration: 20220714 Address after: 610000 No. 18, Section 2, Huanglong Avenue, Southwest Airport Economic Development Zone, Shuangliu District, Chengdu, Sichuan Patentee after: SICHUAN XIN DONGFANG CABLE GROUP Co.,Ltd. Address before: 322100 Jiangnan street, Jiangbei street, Dongyang, Jinhua, Zhejiang No. 1 Hutang Patentee before: DONGYANG YANGTAO ELECTRONIC TECHNOLOGY Co.,Ltd. |