CN215954871U - Underground cable - Google Patents
Underground cable Download PDFInfo
- Publication number
- CN215954871U CN215954871U CN202120536479.6U CN202120536479U CN215954871U CN 215954871 U CN215954871 U CN 215954871U CN 202120536479 U CN202120536479 U CN 202120536479U CN 215954871 U CN215954871 U CN 215954871U
- Authority
- CN
- China
- Prior art keywords
- layer
- moisture
- cable
- wraps
- pressure
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 239000000835 fiber Substances 0.000 claims abstract description 31
- 241000238631 Hexapoda Species 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003365 glass fiber Substances 0.000 claims abstract description 10
- -1 polyethylene Polymers 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004698 Polyethylene Substances 0.000 claims abstract description 6
- 229920002367 Polyisobutene Polymers 0.000 claims abstract description 6
- 229920000573 polyethylene Polymers 0.000 claims abstract description 6
- 244000043261 Hevea brasiliensis Species 0.000 claims abstract description 5
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 5
- 229920001194 natural rubber Polymers 0.000 claims abstract description 5
- 230000000903 blocking effect Effects 0.000 claims abstract description 3
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 239000005060 rubber Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 1
- 241000257303 Hymenoptera Species 0.000 abstract description 13
- 239000010426 asphalt Substances 0.000 abstract description 5
- 229910052802 copper Inorganic materials 0.000 abstract description 5
- 239000010949 copper Substances 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 113
- 239000000463 material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012644 addition polymerization Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000035929 gnawing Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000000077 insect repellent Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
Images
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model provides an underground cable which comprises a cable core, an insulating layer and a sheath layer, wherein the insulating layer wraps the cable core, the sheath layer is positioned on the outermost layer of the cable, and the underground cable also comprises a fiber layer, a water blocking layer, a moisture-proof layer, an armor layer and a pressure-resistant layer; the pressure-resistant layer wraps the insulating layer, the armor layer wraps the pressure-resistant layer, the moisture-proof layer wraps the armor layer, the moisture-proof layer wraps the moisture-proof layer, the fiber layer wraps the moisture-proof layer, and the sheath layer wraps the fiber layer; the insulating layer and the pressure-resistant layer are both made of natural rubber, the armor layer is made of braided copper wires, the moisture-resistant layer is made of asphalt, the water-resistant layer is made of polyisobutylene, the fiber layer is made of glass fiber, and the sheath layer is made of polyethylene. According to the buried cable provided by the utility model, the fiber layer made of glass fiber is adopted, so that insect and ant biting can be effectively prevented, meanwhile, the insect and ant preventing agent added in the fiber layer can repel insects and ants, and the insect and ant preventing performance of the cable is improved; the waterproof layer is mutually matched with the moisture-proof layer, so that the moisture-proof performance of the cable is improved.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to an underground cable.
Background
The underground cable is a cable which is often buried underground compared with a common overhead line, and is also called as an underground cable. Cables are made of one or more mutually insulated conductors surrounded by an insulating layer and a protective layer for transmitting power or information from one location to another. After entering modern society, due to the reasons of shortage of urban land, high traffic pressure, urban construction and the like, the large cities generally adopt an underground cable power transmission mode, and compared with overhead lines, the underground cable has the advantages of small occupied area, reliable power transmission, strong anti-interference capability and the like.
However, because the cable is usually buried underground, the soil of the underground is not only moist, but also the soil is wet, and insects, ants and other underground organisms bite the cable, so that the service life of the underground cable is short, and the maintenance and replacement of the underground cable are complicated and inconvenient.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model aims to provide an underground cable which has the functions of preventing moisture and insects and ants from biting. In order to achieve the purpose, the utility model adopts the following technical scheme:
(II) technical scheme
An underground cable comprises a cable core, an insulating layer and a sheath layer, wherein the insulating layer wraps the cable core, the sheath layer is positioned on the outermost layer of the cable, and the underground cable also comprises a fiber layer, a water-blocking layer, a moisture-proof layer, an armor layer and a pressure-resistant layer;
the pressure-resistant layer wraps the insulating layer, the armor layer wraps the pressure-resistant layer, the moisture-proof layer wraps the armor layer, the water-resistant layer wraps the moisture-proof layer, the fiber layer wraps the water-resistant layer, and the sheath layer wraps the fiber layer; the insulating layer and the pressure-resistant layer are both made of natural rubber, the armor layer is made of braided copper wires, the moisture-proof layer is made of asphalt, the water-proof layer is made of polyisobutylene, the fiber layer is made of glass fiber, and the sheath layer is made of polyethylene.
Furthermore, a plurality of insect and ant prevention agents are arranged in the fiber layer and are uniformly distributed in a ring shape.
Further, a filling layer is arranged between the pressure-resistant layer and the insulating layer, and the filling layer is made of polypropylene.
Furthermore, a plurality of rubber pressure-resistant strips are arranged in the filling layer and are uniformly distributed in a ring shape.
Furthermore, a fluorescent coating is coated outside the sheath layer.
(III) advantageous effects
Compared with the prior art, the cable has obvious advantages and beneficial effects, particularly, the fiber layer is made of glass fiber, so that insect and ant biting can be effectively prevented, meanwhile, the insect and ant preventing agent added in the fiber layer can repel the insect and ant, and the insect and ant preventing performance of the cable is improved; the waterproof layer and the moisture-proof layer are matched with each other, so that the moisture-proof performance of the cable is improved; the pressure-resistant layer is mutually matched with the pressure-resistant strip, so that the pressure is buffered and decomposed, and the pressure-resistant performance of the cable is improved.
Drawings
The utility model will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a schematic overall appearance of the present invention.
The reference numbers illustrate:
| 1. a cable core; | 2. an insulating layer; |
| 3. a filling layer; | 31. a compression resistant strip; |
| 4. a pressure-resistant layer; | 5. an armor layer; |
| 6. a moisture barrier; | 7. a waterproof layer; |
| 8. a fibrous layer; | 81. an insect-repellent agent; |
| 9. a sheath layer. |
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The utility model is further described with reference to the following detailed description and accompanying drawings.
Referring to fig. 1, an underground cable includes a cable core 1, an insulating layer 2, a sheath layer 9, the insulating layer 2 wraps the cable core 1, the sheath layer 9 is located at the outermost layer of the cable, and the underground cable further includes a fiber layer 8, a water blocking layer 7, a moisture-proof layer 6, an armor layer 5, and a pressure-resistant layer 4;
the pressure-resistant layer 4 wraps the insulating layer 2, the armor layer 5 wraps the pressure-resistant layer 4, the moisture-proof layer 6 wraps the armor layer 5, the moisture-proof layer 7 wraps the moisture-proof layer 6, the fiber layer 8 wraps the moisture-proof layer 7, and the sheath layer 9 wraps the fiber layer 8; the insulating layer 2 and the pressure-resistant layer 4 are both made of natural rubber, the armor layer 5 is made of braided copper wires, the moisture-resistant layer 6 is made of asphalt, the water-resistant layer 7 is made of polyisobutylene, the fiber layer 8 is made of glass fiber, and the sheath layer 9 is made of polyethylene.
The natural rubber has good elasticity and insulativity, the insulating layer 2 is used for protecting the cable core 1, preventing the cable core 1 from contacting with a conductor to cause electric shock and the like, and improving the insulating property of the cable, and the pressure-resistant layer 4 has good elasticity and is used for buffering and decomposing the pressure applied to the cable and improving the pressure-resistant property of the cable; the armor layer 5 is made of braided copper wires, the copper wires have certain hardness, the interior of the cable can be protected, meanwhile, the armor layer can be used as a shielding layer, the interior of the cable is prevented from being interfered by an electromagnetic field, and the stability of the cable is improved; the asphalt is a dark brown complex mixture composed of hydrocarbons with different molecular weights and non-metallic derivatives thereof, is a high-viscosity organism, belongs to a hydrophobic material, is waterproof and hardly soluble in water, is used as a main material of the moisture-proof layer 6, can effectively prevent water from permeating, simultaneously, the moisture-proof layer 7 adopts polyisobutylene which is a polymer prepared by polymerizing isobutene through positive ions, has a molecular weight of hundreds to millions, is stable in chemical properties and insoluble in water, and can effectively isolate water as the material of the moisture-proof layer 7; the fiber layer 8 is made of glass fiber which has the excellent characteristics of high mechanical strength, good corrosion resistance, high temperature resistance and the like, and meanwhile, the fiber layer cannot be gnawed by insects and ants, and effectively plays a role in protecting the inside of the cable; the outer sleeve layer 9 is made of polyethylene material, and the polyethylene has good corrosion resistance, low water permeability and good tensile strength.
As a further proposal, a plurality of insect and ant prevention agents 81 are arranged in the fiber layer 8 and are uniformly distributed in a ring shape; when the outer jacket layer 9 is bitten and broken by the insects and the ants, the fiber layer 8 glass fiber can prevent the insects and the ants from further biting and breaking the cable, meanwhile, the insect and the ant preventing agent 81 added in the fiber layer 8 can dispel the insects and the ants, and the insect and ant biting performance of the cable is further improved.
As a further aspect of the present invention, a filling layer 3 is disposed between the pressure-resistant layer 4 and the insulating layer 2, the filling layer 3 is made of polypropylene, the polypropylene is a polymer formed by addition polymerization of propylene, and is a white wax-like material, the appearance is transparent and light, the cost is low, and the filling layer 3 is used for improving the stability inside the cable.
As this scheme is further, be equipped with the resistant layering 31 of a plurality of rubbers in the filling layer 3, be annular evenly distributed, withstand voltage strip 31's effect is mutually supported with withstand voltage layer 4, and when the cable received pressure, withstand voltage layer 4 received pressure earlier and takes place elastic deformation, with the preliminary buffering decomposition of pressure, withstand voltage strip 31 will further cushion the decomposition through the pressure that withstand voltage layer 4 decomposed, reduces the inside pressure that receives of cable, further improves the compressive property of cable.
As this scheme is further, one deck fluorescence coating has been paintd to restrictive coating 9 outside, and fluorescence coating's effect is the cable of being convenient for discern, destroys the cable when avoiding the construction night, improves the distinguishable performance of cable.
The working principle is as follows:
preventing gnawing and biting of insects and ants: when the outer jacket layer 9 is bitten and broken by the insects and ants, the fiber layer 8 glass fiber can prevent the insects and ants from further biting and breaking the cable, and meanwhile, the insect and ant preventing agent 81 added in the fiber layer 8 can dispel the insects and ants, so that the dual effects of preventing and dispelling are achieved.
Moisture resistance: the water-resistant layer 7 is polyisobutylene, has stable chemical property and is insoluble in water, can effectively isolate water to prevent water from permeating into the cable, and meanwhile, the asphalt and the hydrophobic material in the moisture-proof layer 6 are impermeable and almost insoluble in water and are matched with the water-resistant layer 7 to achieve the effect of double-layer protection.
The design key points of the cable are that the fiber layer is made of glass fiber, so that the biting and the biting of insects and ants can be effectively prevented, and meanwhile, the insect-proof agent added in the fiber layer can repel the insects and the ants and improve the insect-proof performance of the cable; the waterproof layer is mutually matched with the moisture-proof layer, so that the moisture-proof performance of the cable is improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (5)
1. The utility model provides a buried cable, includes cable core (1), insulating layer (2), restrictive coating (9), insulating layer (2) parcel cable core (1), restrictive coating (9) are located the cable is outmost, its characterized in that: the waterproof and waterproof composite material also comprises a fiber layer (8), a waterproof layer (7), a moisture-proof layer (6), an armor layer (5) and a pressure-resistant layer (4);
the pressure-resistant layer (4) wraps the insulating layer (2), the armor layer (5) wraps the pressure-resistant layer (4), the moisture-proof layer (6) wraps the armor layer (5), the moisture-proof layer (7) wraps the moisture-proof layer (6), the fiber layer (8) wraps the moisture-proof layer (7), and the sheath layer (9) wraps the fiber layer (8); the insulating layer (2) with the pressure-resistant layer (4) all adopt natural rubber to make, armor (5) adopt to weave the copper wire and make, dampproof course (6) adopt pitch to make, water blocking layer (7) adopt polyisobutylene to make, fibre layer (8) adopt glass fiber to make, restrictive coating (9) adopt polyethylene to make.
2. An underground cable according to claim 1, wherein: the fiber layer (8) is internally provided with a plurality of insect and ant prevention agents (81) which are uniformly distributed in a ring shape.
3. An underground cable according to claim 1, wherein: and a filling layer (3) is arranged between the pressure-resistant layer (4) and the insulating layer (2), and the filling layer (3) is made of polypropylene.
4. An underground cable according to claim 3, wherein: a plurality of rubber pressure-resistant strips (31) are arranged in the filling layer (3) and are uniformly distributed in a ring shape.
5. An underground cable according to claim 1, wherein: the sheath layer (9) is coated with a fluorescent coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120536479.6U CN215954871U (en) | 2021-03-15 | 2021-03-15 | Underground cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120536479.6U CN215954871U (en) | 2021-03-15 | 2021-03-15 | Underground cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215954871U true CN215954871U (en) | 2022-03-04 |
Family
ID=80566868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120536479.6U Expired - Fee Related CN215954871U (en) | 2021-03-15 | 2021-03-15 | Underground cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215954871U (en) |
-
2021
- 2021-03-15 CN CN202120536479.6U patent/CN215954871U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215954871U (en) | Underground cable | |
| CN205542048U (en) | Shallow sea lake is laid and is used light -duty crosslinking polyethylene -insulated power cable | |
| CN110853807A (en) | Strenghthened type 5G wireless communication little basic station is with protection against rodents prevents ant photoelectricity hybrid cable | |
| CN211604748U (en) | For military use bury cable is stung to protection against insects | |
| CN216697883U (en) | Crosslinked polyethylene insulation environment-friendly rat and termite resistant medium-voltage power cable | |
| CN209929046U (en) | Floatable digital communication cable | |
| CN212032700U (en) | Environment-friendly voltage-resistant flexible mineral insulation fireproof cable | |
| CN2888609Y (en) | Special medium-voltage cable with environment protective termite/mouse/water resistant nylon shield | |
| CN216014870U (en) | Underground power cable with strong pressure resistance | |
| CN216561117U (en) | Waterproof rat-proof and termite-proof single-mode optical fiber cable | |
| CN213583193U (en) | High-strength waterproof rat-proof and termite-proof buried cable | |
| CN220420307U (en) | Buried insect and ant preventing cable | |
| CN2537107Y (en) | Mouseproof antproof and dampproof electric cable | |
| CN114944247B (en) | Insulating cloth cable with flame-retardant crosslinked polyolefin | |
| CN216928103U (en) | High-safety composite cable for rail transit | |
| CN216595634U (en) | Waterproof and rat-proof and ant-proof type dual-mode optical fiber cable | |
| CN219642583U (en) | Moisture-resistant and pressure-resistant communication cable | |
| CN221200023U (en) | Steel wire armored loose tube for optical cable | |
| CN214705497U (en) | Communication cable with long service life | |
| CN220105362U (en) | Outdoor optical cable with good corrosion resistance | |
| CN220691751U (en) | Novel dampproofing formula power cable blocks water | |
| CN216053908U (en) | Cross-linked polyethylene insulated direct-current cable for urban light rail subway | |
| CN213242011U (en) | Crosslinked polyethylene insulated rat and termite resistant power cable | |
| CN212181986U (en) | Cable insulation isolation device | |
| CN211742747U (en) | Water-blocking overhead insulated cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220304 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |