CN110444329B - Safe composite cable - Google Patents
Safe composite cable Download PDFInfo
- Publication number
- CN110444329B CN110444329B CN201910764768.9A CN201910764768A CN110444329B CN 110444329 B CN110444329 B CN 110444329B CN 201910764768 A CN201910764768 A CN 201910764768A CN 110444329 B CN110444329 B CN 110444329B
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- CN
- China
- Prior art keywords
- cable
- elastic
- protective sleeve
- ring
- gas storage
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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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- 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
- H01B7/02—Disposition of insulation
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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
- H01B7/185—Sheaths comprising internal cavities or channels
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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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Insulated Conductors (AREA)
- Cable Accessories (AREA)
Abstract
The invention discloses a safe composite cable, which comprises a cable outer layer spliced by more than one section of protective sleeve, wherein the middle in the protective sleeve is provided with a cable protection cavity, a cable core wire is arranged in the cable protection cavity, one end of each section of protective sleeve is provided with an assembling convex part, and the assembling convex parts on the adjacent sides are arranged in the protective sleeve on one side and sealed; the composite cable has good anti-stretching buffering capacity, and meanwhile, when one protective sleeve at one position is broken, the broken hole can be filled by utilizing the expansion of the elastic inflatable belt, so that external water vapor is prevented from entering to generate short circuit and the like, and the safety of the cable is improved.
Description
Technical Field
The invention relates to a cable, in particular to a safe composite cable.
Background
The quick development of society, the cable is as an electric energy or signal transmission's important product, also obtained quick and effectual development, present cable structure is all comparative singleness, the cable conductor generally is protected by outside cable protection layer, and cable protection layer's intensity is low, after using for a long time, easily because ageing or other external factors, lead to the damaged hole that appears of cable protection layer, and then direct naked inside heart yearn, outside steam can enter into inside, make the cable short circuit, perhaps inside heart yearn fracture. The cable is required to have good tensile capacity in many occasions, the conventional integrated cable is not provided with a buffer structure when being pulled, so that the cable is easy to damage due to pulling and has high strength, and once the outer protective layer is damaged, the cable core wire in the cable can be quickly damaged.
Disclosure of Invention
The invention aims to solve the technical problem of a safe composite cable, adopts a brand-new structure, can solve the problem of core wire damage caused by the damage of an outer protective layer of the cable, has very good elastic tensile capacity, prolongs the service life of the cable, can apply the cable in more complex environments, and effectively solves the defects in the prior art.
The invention is realized by the following technical scheme: a safe composite cable comprises a cable outer layer formed by splicing more than one section of protective sleeve, wherein a cable protection cavity is arranged in the middle of each protective sleeve, a cable core wire is arranged in each cable protection cavity, one end of each section of protective sleeve is provided with an assembling convex part, and the assembling convex parts on the adjacent sides are arranged in the protective sleeve on one side and sealed;
more than one limiting through hole is arranged on the end face of each section of protective sleeve in a circle around the circumferential direction of the protective sleeve, the limiting through holes are as long as the protective sleeves, an elastic inflatable belt as long as the outer tegument of the cable is arranged on each limiting through hole penetrating through each protective sleeve, an air storage ring is fixedly arranged outside each section of protective sleeve, more than one air guide pipe is arranged on the inner ring of each air storage ring, one end of each air guide pipe is communicated with the corresponding air storage ring, the other end of each air guide pipe is inserted into the protective sleeve and is connected and communicated with each elastic inflatable belt, gas in the air storage rings penetrates through the air guide pipes and enters the elastic inflatable belts, more than one locking pieces wrap the outer parts of the air storage rings, and the locking pieces extrude the air storage rings.
As the preferred technical scheme, the elastic inflatable belts are made of elastic rubber materials with elastic expansion capacity, air storage channels are arranged in the elastic inflatable belts, air storage cavities are arranged in the air storage rings, and the air storage cavities are connected and communicated with the air storage channels through air guide tubes.
As the preferred technical scheme, more than one groove is formed in one end, away from the cable core, of the elastic inflatable belt, rubber protection strips are embedded into the grooves, and one end of each rubber protection strip slightly protrudes out of the outer surface of the elastic inflatable belt.
As the preferred technical scheme, the gas storage ring is made of flexible rubber materials, inert gas is stored in the gas storage cavity inside the gas storage ring, the locking piece is made of more than one elastic ring, the elastic ring is propped open by the locking piece, and the elastic ring applies an extrusion force to the locking piece.
According to the preferable technical scheme, the outer part of each assembling convex part is wrapped by one silica gel sealing layer, the outer diameter of each assembling convex part is equal to the inner diameter of the cable protection cavity, and each assembling convex part is in sealing assembly with the inner wall surface of the cable protection cavity through the silica gel sealing layer.
As a preferred technical scheme, the gas storage ring is annular, is sleeved outside the protective sleeve and is bonded and fixed by glue.
The invention has the beneficial effects that: the cable outer layer is internally provided with a circle of elastic inflatable belt, so that after the cable outer layer is damaged at a certain position, the elastic inflatable belt can expand at the damaged position of the cable outer layer under the action of the gas storage ring after losing limiting force, and then the expanded elastic inflatable belt is used for filling the hole of the cable outer layer, thereby reducing the entry of water vapor and prolonging the service life of an internal core wire after the hole is broken;
the invention adopts more than one section of protective sleeve, thus when in traction, the elastic inflation belt can be utilized to realize buffer traction, the elastic buffer force is increased, the axial traction force can realize buffer, and the integral tensile capacity of the cable is increased;
the invention utilizes more than one convex gas storage ring as external support, which can increase the whole pressure resistance of the cable, so that when the top is pressed, the elastic gas storage ring is utilized to realize buffering, and the pressure resistance of the top is increased;
and fourthly, inert gas is stored in the gas storage ring, and if the gas storage ring is damaged or the elastic inflatable belt is damaged due to a fire, the inert gas in the gas storage ring can escape out, so that peripheral fire sources are extinguished, the continuous combustion of the fire sources is inhibited, and the fire-proof capability is improved.
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 diagram of the structure of the present invention after drawing;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a partial schematic structural view of the elastic inflatable band of the present invention.
Detailed Description
As shown in fig. 1-3, the safety composite cable comprises a cable outer layer formed by splicing more than one section of protective sleeve 8, a cable protection cavity 7 is arranged in the middle of the protective sleeve 8, a cable core wire 9 is arranged in the cable protection cavity 7, one end of each section of protective sleeve 8 is provided with an assembly convex part 11, and the assembly convex parts 11 on the adjacent sides are arranged in the protective sleeve 8 on one side and sealed;
more than one limiting through hole is arranged on the end face of each section of protective sleeve 8 in a circle around the circumferential direction of the protective sleeve, the limiting through holes are as long as the protective sleeve 8, each limiting through hole penetrating through each protective sleeve 8 is provided with an elastic inflatable belt 5 as long as the outer tegument of the cable, an air storage ring 1 is fixedly arranged outside each section of protective sleeve 8, the inner ring of the air storage ring 1 is provided with more than one air guide tube 4, one end of each air guide tube 4 is communicated with the air storage ring 1, the other end of each air guide tube is inserted into the protective sleeve 8 and is connected and communicated with each elastic inflatable belt 5, the gas in the air storage ring 1 penetrates through the air guide tube and enters the elastic inflatable belts 5, the outer part of the air storage ring 1 is wrapped with more than one locking part 3, and the locking part 3 extrudes the air storage ring 1 and extrudes the gas in.
In this embodiment, elastic inflatable belt 5 all adopts the elastic rubber material who has the elasticity ability of expanding to make, its inside all is provided with a gas storage channel 6, the inside gas storage chamber 2 that all is provided with of gas storage ring 1, gas storage chamber 2 is connected with gas storage channel 6 through air duct 4 and is switched on, gas storage ring 1 is used for storing gas, when the outside no spacing parcel of elastic inflatable belt, the gas in the gas storage ring 1 can be extruded and enters into in elastic inflatable belt 5, and then make elastic inflatable belt 5 inflation, in this embodiment, utilize this principle, make the elastic inflatable belt local inflation of the outer tegument department of defective cable appear and swell, the elasticity that utilizes the inflation to swell and brings the sealed defective department as far as possible, reduce the opening size of defective department, increase the security.
Wherein, as shown in fig. 4, elasticity gas band 5 is kept away from cable conductor one end and is seted up more than one recess, it is provided with rubber protection strip 51 all to inlay in the recess, the little protruding surface in elasticity gas band of one end of rubber protection strip 51, protect the condition of exogenic action at the outer tegillum of cable through rubber protection strip 51, and then prevent the damage of elasticity gas band, make elasticity gas band have better intensity, because elasticity gas band lays in the inside of the outer tegillum of cable, so if the damaged department of the outer tegillum of cable just in time is located the position of elasticity gas band, elasticity gas band can bulge at damaged department this moment, fill up.
In addition, in this embodiment, it should be noted that, after the elastic inflatable belt is embedded in the protective sheath, the inner side end of the elastic inflatable belt needs to be extended into the protective sheath, that is, needs to be slightly protruded into the cable protection cavity, so that the external force pushes out the elastic inflatable belt toward the cable protection cavity by the external force when the external force shears the outer side surface of the protective sheath, thereby preventing the elastic inflatable belt from being damaged by the external force extrusion shear, and playing a role of extrusion yielding.
In the embodiment, the gas storage ring 1 is made of flexible rubber materials, inert gas is stored in the gas storage cavity 2 inside the gas storage ring, the locking piece is made of more than one elastic ring 3, the elastic ring 3 is propped open by the locking piece, and the elastic ring 3 applies an extrusion force to the locking piece. When the elastic inflatable belt 5 is positioned in the limiting through hole, the elastic inflatable belt is limited by the limiting through hole at the moment, the elastic inflatable belt is prevented from expanding, once the elastic inflatable belt is not limited at a certain position, the air storage ring is extruded under the action of the elastic ring, and then air in the air storage ring can be extruded to enter the non-limiting position of the elastic inflatable belt, so that the non-limiting position of the elastic inflatable belt expands, and the automatic plugging of the broken hole can be realized by utilizing the principle.
The outer portion of the assembling convex portion 11 is wrapped with a silica gel sealing layer, the outer diameter of the assembling convex portion 11 is equal to the inner diameter of the cable protection cavity, the assembling convex portion 11 is in sealing assembly with the inner wall surface of the cable protection cavity through the silica gel sealing layer, the protective sleeve can be pulled, the protective sleeve is partially stretched, as shown in fig. 2, all elastic inflatable belts are also partially stretched elastically, and therefore tensile buffering is achieved.
In this embodiment, the gas storage ring 1 is annular, and it is fixed that its suit is in the outside of protective sheath 8 and is beaten glue bonding, because what stored in the gas storage ring 1 is inert gas, if there is a fire source or inside spontaneous combustion outside, can all make gas storage ring or elastic inflatable belt damaged, and then release inside inert gas, reduce the oxygen content near the fire source, and then play the effect that reduces the intensity of a fire and spread.
The invention has the beneficial effects that: the cable outer layer is internally provided with a circle of elastic inflatable belt, so that after the cable outer layer is damaged at a certain position, the elastic inflatable belt can expand at the damaged position of the cable outer layer under the action of the gas storage ring after losing limiting force, and then the expanded elastic inflatable belt is used for filling the hole of the cable outer layer, thereby reducing the entry of water vapor and prolonging the service life of an internal core wire after the hole is broken;
the invention adopts more than one section of protective sleeve, thus when in traction, the elastic inflation belt can be utilized to realize buffer traction, the elastic buffer force is increased, the axial traction force can realize buffer, and the integral tensile capacity of the cable is increased;
the invention utilizes more than one convex gas storage ring as external support, which can increase the whole pressure resistance of the cable, so that when the top is pressed, the elastic gas storage ring is utilized to realize buffering, and the pressure resistance of the top is increased;
and fourthly, inert gas is stored in the gas storage ring, and if the gas storage ring is damaged or the elastic inflatable belt is damaged due to a fire, the inert gas in the gas storage ring can escape out, so that peripheral fire sources are extinguished, the continuous combustion of the fire sources is inhibited, and the fire-proof capability is improved.
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 secure composite cable, comprising: the cable protection device comprises a cable outer tegument formed by splicing more than one section of protection sleeve, wherein the middle in the protection sleeve is provided with a cable protection cavity, a cable core wire is arranged in the cable protection cavity, one end of each section of protection sleeve is provided with an assembly convex part, and the assembly convex parts on the adjacent sides are arranged in the protection sleeve on one side and sealed;
more than one limiting through hole is arranged on the end face of each section of protective sleeve in a circle around the circumferential direction of the protective sleeve, the limiting through holes are as long as the protective sleeves, an elastic inflatable belt as long as the outer tegument of the cable is arranged on each limiting through hole penetrating through each protective sleeve, an air storage ring is fixedly arranged outside each section of protective sleeve, more than one air guide pipe is arranged on the inner ring of each air storage ring, one end of each air guide pipe is communicated with the corresponding air storage ring, the other end of each air guide pipe is inserted into the protective sleeve and is connected and communicated with each elastic inflatable belt, gas in the air storage rings penetrates through the air guide pipes and enters the elastic inflatable belts, more than one locking pieces wrap the outer parts of the air storage rings, and the locking pieces extrude the air storage rings.
2. The secure composite cable of claim 1, wherein: the elastic inflatable belt is made of elastic rubber materials with elastic expansion capacity, a gas storage channel is arranged in the elastic inflatable belt, a gas storage cavity is arranged in the gas storage ring, and the gas storage cavity is connected and communicated with the gas storage channel through a gas guide tube.
3. The secure composite cable of claim 1, wherein: the elastic inflatable belt is far away from one end of the cable core wire and is provided with more than one groove, the grooves are internally provided with rubber protection strips in an embedded mode, and one end of each rubber protection strip slightly protrudes out of the outer surface of the elastic inflatable belt.
4. The secure composite cable of claim 1, wherein: the gas storage ring is made of flexible rubber materials, inert gas is stored in a gas storage cavity inside the gas storage ring, the locking piece is made of more than one elastic ring, the elastic ring is propped open by the locking piece, and the elastic ring applies an extrusion force to the locking piece.
5. The secure composite cable of claim 1, wherein: the outer part of the assembly convex part is wrapped with a silica gel sealing layer, the outer diameter of the assembly convex part is equal to the inner diameter of the cable protection cavity, and the assembly convex part is in sealing assembly with the inner wall surface of the cable protection cavity through the silica gel sealing layer.
6. The secure composite cable of claim 1, wherein: the gas storage ring is annular and is sleeved outside the protective sleeve and is bonded and fixed by glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910764768.9A CN110444329B (en) | 2019-08-19 | 2019-08-19 | Safe composite cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910764768.9A CN110444329B (en) | 2019-08-19 | 2019-08-19 | Safe composite cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110444329A CN110444329A (en) | 2019-11-12 |
| CN110444329B true CN110444329B (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910764768.9A Active CN110444329B (en) | 2019-08-19 | 2019-08-19 | Safe composite cable |
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| CN (1) | CN110444329B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110880385B (en) * | 2019-12-10 | 2020-12-11 | 新沂市锡沂高新材料产业技术研究院有限公司 | Fire-resistant resistance to compression cable |
| CN111354511A (en) * | 2020-04-16 | 2020-06-30 | 徐立平 | Safety cable |
| CN111929781B (en) * | 2020-08-11 | 2023-05-05 | 杭州富通通信技术股份有限公司 | Optical cable temporary sheath |
| CN113161047B (en) * | 2021-04-20 | 2022-05-27 | 涌纬集团股份有限公司 | Power cable for intelligent energy |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO20130076A1 (en) * | 2012-01-16 | 2013-07-17 | Schlumberger Technology Bv | Pipe-enclosed motor cable |
| CN205283025U (en) * | 2015-11-23 | 2016-06-01 | 山西晋开成套设备有限公司 | Easily lock cable protection pipe |
| CN205542019U (en) * | 2016-01-21 | 2016-08-31 | 江苏金陵特种电缆有限公司 | Elasticity power cable |
| CN205318873U (en) * | 2016-01-21 | 2016-06-15 | 江苏金陵特种电缆有限公司 | Light -duty power cable |
| CN208548179U (en) * | 2018-07-25 | 2019-02-26 | 深圳市中科睿金贵材科技有限公司 | A kind of Novel sound box equipment high-transmission electric wire |
| CN109148020A (en) * | 2018-09-05 | 2019-01-04 | 吴革洪 | power transmission line |
| CN109741870B (en) * | 2019-01-24 | 2020-08-28 | 中山市鸿运电器有限公司 | Power line |
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| CN110444329A (en) | 2019-11-12 |
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Effective date of registration: 20200902 Address after: 225000, No. 6, Pioneer Road, Sha Tau Town, Guangling District, Jiangsu, Yangzhou Applicant after: JIANGSU DICHENG 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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