CN218602155U - Insulating fire resisting cable convenient to installation - Google Patents
Insulating fire resisting cable convenient to installation Download PDFInfo
- Publication number
- CN218602155U CN218602155U CN202220438050.8U CN202220438050U CN218602155U CN 218602155 U CN218602155 U CN 218602155U CN 202220438050 U CN202220438050 U CN 202220438050U CN 218602155 U CN218602155 U CN 218602155U
- Authority
- CN
- China
- Prior art keywords
- layer
- cable
- fire
- groups
- rubber sheath
- 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.)
- Active
Links
Images
Classifications
-
- 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
Abstract
The invention provides an insulating fire-resistant cable convenient to install, which relates to the technical field of cables and comprises the following components: the cable comprises a cable core, a fire-resistant layer, an insulating layer, a rubber sheath, a waterproof layer, an anti-aging layer and a protective shell; the wire cores are provided with 4 groups; the fire-resistant layers are respectively concentrically coated on the outer sides of the four groups of wire cores; the insulating layers are respectively concentrically coated on the outer sides of the four groups of refractory layers; the rubber sheath consists of a framework and a filling cavity; the rubber sheath concentrically covers the outer sides of the four groups of insulating layers; the waterproof layer is concentrically coated on the outer side of the rubber sheath; the anti-aging layer is concentrically coated on the outer side of the waterproof layer. After the rubber sheath is burnt by the naked light, the pointed end in rhombus filling cavity is burnt through most easily, and insulating paste flows out from the perforation at this moment, forms and hinders the structure, avoids the intensity of a fire to spread and causes the damage to wider cable, has solved when the cable catches fire, is difficult to carry out the restriction to the naked light, leads to the intensity of a fire to spread and makes wider cable cause the problem of damage.
Description
Technical Field
The invention relates to the technical field of cables, in particular to an insulating fire-resistant cable convenient to install.
Background
The insulated fire-resistant cable is a cable capable of keeping safe operation for a certain time under the condition of flame combustion, and is widely applied to places related to fire safety and fire life saving, such as high-rise buildings, underground railways, underground streets, large-scale power stations, important industrial and mining enterprises and the like, for example, power supply lines and control lines of emergency facilities such as fire-fighting equipment, emergency guide lamps and the like.
However, with the current conventional fire-resistant cable, it is difficult to provide good buffer protection when the cable is extruded by excessive pressure, easily causing damage under extrusion by the pressure of the cable, and at the same time, when the cable is on fire, it is difficult to limit open fire, resulting in fire spreading and causing damage to a wider range of cables.
Disclosure of Invention
In view of the above, the invention provides an insulating fire-resistant cable convenient to install, which comprises a rubber sheath, wherein a framework is fixed in the rubber sheath, multiple groups of wire cores can be isolated, cross knotting among the multiple groups of wire cores in the installation process is avoided, the wire cores are convenient to install, meanwhile, a rhombic filling cavity is arranged on the rubber sheath, insulating paste is filled in the filling cavity, when the cable is ignited, the pointed end of the rhombic filling cavity is most easily burnt through, at the moment, the insulating paste flows out from a perforation to form a blocking structure, the cable in a larger range is prevented from being damaged by fire spreading, the insulating fire-resistant cable further comprises a protective shell arranged on the outer wall of the cable, a buffer strip is arranged in the protective shell, the protective shell is prevented from generating friction on an anti-aging layer to cause abrasion of the anti-aging layer, multiple groups of spring rods are arranged in the protective shell, the cable can be protected when the cable is extruded by excessive pressure, the cable is prevented from being crushed, meanwhile, an installation block is arranged on the protective shell, a threaded hole is arranged on the installation block, the cable can be conveniently installed and positioned by matching of a bolt and the threaded hole, and the working efficiency of a worker can be improved quickly.
The invention provides an insulating fire-resistant cable convenient to install, which specifically comprises: the cable comprises a cable core, a fire-resistant layer, an insulating layer, a rubber sheath, a waterproof layer, an anti-aging layer and a protective shell; the wire cores are provided with 4 groups; the fire-resistant layers are respectively concentrically coated on the outer sides of the four groups of wire cores; the insulating layers are concentrically coated on the outer sides of the four groups of refractory layers respectively; the rubber sheath consists of a framework and a filling cavity; the rubber sheath concentrically covers the outer sides of the four groups of insulating layers; the waterproof layer is concentrically coated on the outer side of the rubber sheath; the anti-aging layer is concentrically coated on the outer side of the waterproof layer; the protective shell consists of a connecting block, a connecting groove, an installation block, a buffer strip, a damping groove and a spring rod; the protective housing concentrically wraps the anti-aging layer.
Optionally, the fire-resistant layer is made of fire-resistant mica; the thickness of the fire-resistant layer is 1-3 mm.
Optionally, the insulating layer is made of a polypropylene insulating material; the thickness of the insulating layer is typically 1mm.
Optionally, a framework is fixed in the rubber sheath; the rubber sheath is provided with rhombic filling cavities in an annular array shape; the filling cavity is filled with insulating paste.
Optionally, the waterproof layer is made of a polyurethane waterproof material; the thickness of the waterproof layer is 0.5-2 mm.
Optionally, the anti-aging layer is made of tetrafluoroethylene material; the thickness of the anti-aging layer is 2-3 mm.
Optionally, the protective shell is of two arc-shaped block structures; the protective shell is provided with a connecting block and a connecting groove; the inner walls of the two protective shells are provided with buffer strips; the buffer strip is contacted with the anti-aging layer; two groups of mounting blocks are symmetrically and fixedly connected to the outer walls of the two protective shells; threaded holes are formed in the four groups of mounting blocks; damping grooves are formed in the two protective shells; a plurality of groups of spring rods are arranged in the damping grooves.
Advantageous effects
The utility model provides a when having too big pressure to extrude the cable, the cable is difficult to restrict naked light after the cable short circuit is fired simultaneously by the problem that pressure extrusion destroys easily, leads to the naked light to stretch and causes the damage to wider cable.
In addition, be provided with rubber sheath on the cable, rubber sheath internal fixation has the skeleton, can keep apart the multiunit sinle silk through the skeleton, make things convenient for the sinle silk to install, avoid the sinle silk to take place the problem of alternately knoing in the installation, be provided with the packing chamber of rhombus in the rubber sheath simultaneously, it has insulating paste to fill the intracavity packing, after the rubber sheath is fired by the naked light, the pointed end in rhombus packing chamber is burnt through most easily, at this moment, insulating paste flows from the perforation, form and hinder the structure, avoid the intensity of a fire to stretch and cause the damage to wider cable.
In addition, the cable installs the protective housing outward, be provided with the buffering strip in the protective housing, the anti-aging layer direct contact of protective housing and cable can be avoided to the buffering strip, it rubs to lead to the protective housing to resist the anti-aging layer and makes the anti-aging layer wearing and tearing, be provided with the multiunit spring beam in the protective housing, can be when having too big pressure to extrude the cable, protect the cable, prevent that the cable from being crushed, be provided with the installation piece on the protective housing outer wall, can carry out more convenient installation and location fast by the bolt with the cooperation of installation piece by the cable.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
The drawings in the following description relate to some embodiments of the invention only and are not intended to limit the invention.
In the drawings:
fig. 1 is an axial structural view of the present invention.
Fig. 2 is a schematic axial view of the protective case of the present invention.
Fig. 3 is a schematic sectional view of the protective case of the present invention.
Fig. 4 is a schematic top view of the present invention.
List of reference numerals
1. A wire core; 2. a refractory layer; 3. an insulating layer; 4. a rubber sheath; 401. a framework; 402. filling the cavity; 5. a waterproof layer; 6. an anti-aging layer; 7. a protective shell; 701. connecting blocks; 702. connecting grooves; 703. mounting blocks; 704. a buffer strip; 705. a damping groove; 706. a spring rod.
Detailed Description
In order to make the objects, aspects and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. Unless otherwise indicated, terms used herein have the ordinary meaning in the art. Like reference numerals in the drawings denote like elements.
The embodiment is as follows: please refer to fig. 1 to fig. 4:
the invention provides an insulating fire-resistant cable convenient to install, which comprises: the anti-aging cable comprises a cable core (1), a fire-resistant layer 2, an insulating layer 3, a rubber sheath 4, a waterproof layer 5, an anti-aging layer 6, a protective shell 7 and a connecting block 701;
4 groups of wire cores (1) are arranged;
the fire-resistant layers 2 are respectively concentrically coated on the outer sides of the four groups of wire cores (1);
the insulating layers 3 are respectively concentrically coated on the outer sides of the four groups of refractory layers 2;
the rubber sheath 4 consists of a framework 401 and a filling cavity 402; the rubber sheath 4 concentrically covers the outer sides of the four groups of insulating layers 3;
the waterproof layer 5 is concentrically coated on the outer side of the rubber sheath 4;
the anti-aging layer 6 is concentrically coated on the outer side of the waterproof layer 5;
the protective shell 7 consists of a connecting block 701, a connecting groove 702, an installation block 703, a buffering strip 704, a damping groove 705 and a spring rod 706; the protective shell 7 concentrically covers the outer side of the anti-aging layer 6.
Further, according to an embodiment of the present invention, as shown in fig. 1, the fire resistant layer 2 is made of fire resistant mica; the thickness of the fire-resistant layer 2 is 1-3mm, the fire-resistant mica is a high-performance mica insulation product, the fire-resistant mica has excellent high-temperature resistance and combustion resistance, the fire resistance of the cable can be improved, and the fire-resistant layer 2 made of the fire-resistant mica does not contain halogen, so that toxic smoke is prevented from being generated after the cable is ignited.
Further, according to an embodiment of the present invention, as shown in fig. 1, the insulating layer 3 is made of a polypropylene insulating material; the thickness of the insulating layer 3 is usually 1mm, the polypropylene insulating material has better electrical property and thermal property, and the polypropylene insulating material hardly absorbs water, so that the insulating effect cannot be influenced by moisture, and the signal transmission of the cable cannot be influenced.
Further, according to the embodiment of the present invention, as shown in fig. 1 and 4, a skeleton 401 is fixed inside the rubber sheath 4; the rubber sheath 4 is provided with rhombic filling cavities 402 in an annular array; the filling cavity 402 is filled with insulating paste, four groups of wire cores (1) are isolated through the framework 401, installation of the cable is facilitated, meanwhile, when the rubber sheath 4 is burned by open fire, the pointed end of the rhombic filling cavity 402 is most easily burned through, and at the moment, the insulating paste in the filling cavity 402 flows out from the through hole to form a blocking structure, so that the open fire is prevented from spreading.
Further, according to an embodiment of the present invention, as shown in fig. 1, the waterproof layer 5 is made of a polyurethane waterproof material; the waterproof layer (5 is 0.5-2mm thick, and the polyurethane waterproof material has an excellent water seepage prevention function, so that the cable can be prevented from being damaged by water permeating into the cable from the outside of the cable, and the waterproofness of the cable is improved.
Further, according to an embodiment of the present invention, as shown in fig. 1, the aging resistant layer 6 is made of a tetrafluoroethylene material; the thickness of the anti-aging layer 6 is 2-3mm, the tetrafluoroethylene material has good corrosion resistance and ageing resistance, the service life of the cable is prolonged, and meanwhile, substances with high corrosion resistance can be prevented from corroding the cable.
Further, according to the embodiment of the present invention, as shown in fig. 2 and 3, the protective case 7 is a two-piece arc-shaped block structure; a connecting block 701 and a connecting groove 702 are arranged on the protective shell 7; the inner walls of the two protective shells 7 are provided with buffer strips 704; the buffer strip 704 is in contact with the aging resistant layer 6; two groups of mounting blocks 703 are symmetrically and fixedly connected to the outer walls of the two protective shells 7; threaded holes are formed in the four groups of mounting blocks 703; damping grooves 705 are formed in the two protective shells 7; install multiunit spring beam 706 in damping groove 705, can make and install fast and dismantle between two protective housings 7 through mutually supporting between connecting block 701 and the spread groove 702, the convenience is with cable installation in protective housing 7, buffering strip 704 in the protective housing 7 can avoid between protective housing 7 and the anti-aging layer 6 friction to produce wearing and tearing to anti-aging layer 6, multiunit spring beam 706 that sets up in the protective housing 7 can cushion the protection to the cable in the protective housing 7, avoid there being too big pressure to crush the cable, can fix a position fast and install the cable in inserting the screw hole of installation piece 703 with the bolt simultaneously, the time of staff to cable installation has been saved, and work efficiency is increased.
The specific use mode and function of the embodiment are as follows:
the cable is placed in the protection shell 7 when the cable is installed, a plurality of groups of spring rods 706 arranged in the protection shell 7 can buffer and protect the cable, excessive pressure is prevented from extruding the cable to crush the cable, the cable cannot be normally used, the protection shell 7 is provided with the buffer strips 704, the buffer strips 704 can avoid the protection shell 7 from being in direct contact with the anti-aging layer 6 to cause the protection shell 7 to rub the anti-aging layer 6 to cause abrasion of the anti-aging layer 6, the cable is quickly installed and positioned through the installation blocks 703 arranged on the protection shell 7 in the installation process through bolts, the installation of workers on the cable is facilitated, the working efficiency of workers is increased, the cables can be effectively prevented from being corroded by high-corrosivity substances through the anti-aging layer 6, meanwhile, the anti-aging endurance of the cable is increased, the service life of the cable is prolonged, the waterproofness of the cable is improved through the waterproof layer 5, the cable leakage caused by water permeating into the cable is prevented, four groups of cable cores (1) can be isolated through a framework 401 arranged in the rubber sheath 4, the installation of the cable (1) is facilitated, meanwhile, the rhombic filling cavity 402 is filled with the insulation paste, and the diamond-shaped insulation paste can be prevented from being easily spread when the burning insulation paste is filled in the exposed fire blocking cavity, and the burning and the exposed fire blocking structure, and the burning point.
Finally, it should be noted that, when describing the positions of the components and the matching relationship therebetween, the present invention is usually illustrated by one/a pair of components, however, it should be understood by those skilled in the art that such positions, matching relationship, etc. are also applicable to other/other pairs of components.
The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.
Claims (7)
1. An insulated fire resistant cable for easy installation, comprising: the cable comprises a cable core (1), a fire-resistant layer (2), an insulating layer (3), a rubber sheath (4), a waterproof layer (5), an anti-aging layer (6) and a protective shell (7); 4 groups of wire cores (1) are arranged; the fire-resistant layers (2) are respectively concentrically coated on the outer sides of the four groups of wire cores (1); the insulating layers (3) are concentrically coated on the outer sides of the four groups of refractory layers (2) respectively; the rubber sheath (4) consists of a framework (401) and a filling cavity (402); the rubber sheath (4) concentrically covers the outer sides of the four groups of insulating layers (3); the waterproof layer (5) is concentrically coated on the outer side of the rubber sheath (4); the anti-aging layer (6) is concentrically coated on the outer side of the waterproof layer (5); the protective shell (7) consists of a connecting block (701), a connecting groove (702), an installation block (703), a buffering strip (704), a damping groove (705) and a spring rod (706); the protective shell (7) concentrically covers the outer side of the anti-aging layer (6).
2. An insulated fire resistant cable for easy installation as claimed in claim 1 wherein: the fire-resistant layer (2) is made of fire-resistant mica; the thickness of the fire-resistant layer (2) is 1-3 mm.
3. An easily installed insulated fire resistant cable as defined in claim 1, wherein: the insulating layer (3) is made of polypropylene insulating material; the thickness of the insulating layer (3) is 1mm.
4. An easily installed insulated fire resistant cable as defined in claim 1, wherein: a framework (401) is fixed in the rubber sheath (4); diamond-shaped filling cavities (402) are formed in the rubber sheath (4) in an annular array; the filling cavity (402) is filled with insulating paste.
5. An insulated fire resistant cable for easy installation as claimed in claim 1 wherein: the waterproof layer (5) is made of a polyurethane waterproof material; the thickness of the waterproof layer (5) is 0.5-2 mm.
6. An insulated fire resistant cable for easy installation as claimed in claim 1 wherein: the anti-aging layer (6) is made of tetrafluoroethylene material; the thickness of the anti-aging layer (6) is 2-3 mm.
7. An insulated fire resistant cable for easy installation as claimed in claim 1 wherein: the protective shell (7) is of two arc-shaped block structures; a connecting block (701) and a connecting groove (702) are arranged on the protective shell (7); the inner walls of the two protective shells (7) are provided with buffer strips (704); the buffer strip (704) is in contact with the anti-aging layer (6); two groups of mounting blocks (703) are symmetrically and fixedly connected to the outer walls of the two protective shells (7); threaded holes are formed in the four groups of mounting blocks (703); damping grooves (705) are formed in the two protective shells (7); a plurality of groups of spring rods (706) are arranged in the damping grooves (705).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220438050.8U CN218602155U (en) | 2022-03-01 | 2022-03-01 | Insulating fire resisting cable convenient to installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220438050.8U CN218602155U (en) | 2022-03-01 | 2022-03-01 | Insulating fire resisting cable convenient to installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218602155U true CN218602155U (en) | 2023-03-10 |
Family
ID=85394913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220438050.8U Active CN218602155U (en) | 2022-03-01 | 2022-03-01 | Insulating fire resisting cable convenient to installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218602155U (en) |
-
2022
- 2022-03-01 CN CN202220438050.8U patent/CN218602155U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111210939B (en) | Polyvinyl chloride insulation fire-resistant power cable | |
| CN218602155U (en) | Insulating fire resisting cable convenient to installation | |
| CN202384736U (en) | Flame-retardant and anti-explosion box for intermediate joint of cable | |
| CN213716535U (en) | Copper conductor and towline cable with same | |
| KR20170084841A (en) | hydrocarbon fire protection cable | |
| CN215770597U (en) | Novel special high-temperature-resistant control cable | |
| CN205751680U (en) | A kind of crosslinked polyetylene insulated multicore flame retardant cable | |
| CN215911235U (en) | Cable with flame retardant function | |
| CN209980805U (en) | Safe fireproof cable | |
| CN213092883U (en) | High flame-retardant insulated wire and cable | |
| CN114652979A (en) | Waterproof distributed instrument cable for safety explosion-proof circuit | |
| CN208240384U (en) | High life LSOH anti-flaming ceramic fire-resisting cable | |
| CN210896727U (en) | Mineral insulation fireproof cable | |
| CN105913959A (en) | Crosslinked polyethylene insulated multi-core flame retardant cable | |
| CN209843324U (en) | Flame-retardant buffer cable | |
| CN215815265U (en) | Bundling fireproof special cable for security | |
| CN216671271U (en) | Heat dissipation type fire-resistant cable | |
| CN213424621U (en) | Aluminum alloy core isolated form fire resisting cable | |
| CN212084729U (en) | Low-voltage power cable | |
| CN219497395U (en) | 27.5kV single-phase alternating-current flame-retardant waterproof environment-friendly electrified railway power cable | |
| CN218216479U (en) | Cable polyvinyl chloride pipe | |
| CN214505079U (en) | Expansion flame-retardant power cable | |
| CN219303388U (en) | Inflatable heat-insulating medium-voltage fireproof cable | |
| CN213242034U (en) | High-insulation flexible fireproof cable | |
| CN218038658U (en) | Isolated flexible mineral insulated cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |