CN112885524A - Double-flame-retardant power cable - Google Patents
Double-flame-retardant power cable Download PDFInfo
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- CN112885524A CN112885524A CN202110275530.7A CN202110275530A CN112885524A CN 112885524 A CN112885524 A CN 112885524A CN 202110275530 A CN202110275530 A CN 202110275530A CN 112885524 A CN112885524 A CN 112885524A
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- 239000004020 conductor Substances 0.000 claims abstract description 47
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- 239000000945 filler Substances 0.000 claims abstract description 12
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Images
Classifications
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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
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0036—Details
-
- 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
- H01B7/1895—Internal space filling-up means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a double-flame-retardant power cable, and relates to the technical field of cables. The cable comprises a first cable core conductor and a second cable core conductor, wherein cavities are formed in the first cable core conductor and the second cable core conductor, a plurality of wire harnesses are arranged in the cavities, insulating layers are arranged on the peripheral sides of the wire harnesses, and flame-retardant filler layers are filled in the cavities; a connecting plate is arranged between the first cable core conductor and the second cable core conductor, two first channels are arranged inside the connecting plate, and a limiting assembly is arranged inside the first channels. According to the invention, the situation that the wiring harness is loosened in use is reduced by the arranged flame-retardant filler layer, the situation that the wiring harness is damaged by fire when the wiring harness is used is reduced by the arranged flame-retardant layer, and the situation that the arc-shaped plate is inclined in use is reduced by the arranged fixed rod, so that the stability of the device is improved.
Description
Technical Field
The invention belongs to the technical field of cables, and particularly relates to a double-flame-retardant power cable.
Background
Cables are generally rope-like cables made by stranding several or groups of conductors, at least two in each group, each group being insulated from each other and often twisted around a center, the entire outer surface being covered with a highly insulating covering. The device is erected in the air or installed underground or underwater for telecommunication or power transmission. In 1832, the russian back-wood military officer scholin buried the telegraph line underground, and the six wires were insulated with rubber and placed in a glass tube, which is the earliest underground cable in the world, and the insulated wire formed by placing one or more mutually insulated conductive cores in a sealed sheath. It may be coated with a protective coating for transmitting, distributing electrical energy or transmitting electrical signals. The difference between the cable and the common wire is mainly that the cable is large in size and complex in structure. The cable is mainly composed of the following 4 parts. Firstly, a conductive line center: made of a high conductivity material (copper or aluminum). Each core may be formed by twisting a single wire or a plurality of wires according to the requirement of laying and using conditions on the flexibility degree of the cable. Insulating layer: the insulating material used as the cable should have high insulation resistance, high breakdown field strength, low dielectric loss and low dielectric constant. Common insulating materials used in cables are oil-impregnated paper, polyvinyl chloride, polyethylene, crosslinked polyethylene, rubber, and the like. Cables are often classified as insulating materials, such as oil impregnated paper insulated cables, polyvinyl chloride cables, crosslinked polyethylene cables, and the like. Sealing the sheath: protecting the insulated wire core from mechanical, moisture, humidity, chemicals, light, etc. For moisture-sensitive insulation, a lead or aluminum extrusion seal jacket is generally used. Protecting the covering layer: to protect the sealing boot from mechanical damage. Galvanized steel strips, steel wires or copper strips, copper wires and the like are generally used as armor to wrap the armor outside a sheath (called an armored cable), and the armor layer simultaneously plays the roles of shielding an electric field and preventing external electromagnetic wave interference. In order to avoid corrosion of the steel belts and wires by the surrounding medium, they are generally coated with asphalt or wrapped with an impregnated jute layer or an extruded polyethylene or polyvinyl chloride sheath. The cable may be classified into a power cable, a communication cable, a control cable, and the like according to its use. Compared with an overhead line, the cable has the advantages of small insulating distance between lines, small occupied space, no occupation of space above the ground due to underground laying, no influence of pollution of the surrounding environment, high power transmission reliability, and small interference on personal safety and the surrounding environment. But the cost is high, the construction and the maintenance are troublesome, and the manufacture is complicated. Therefore, the cable is mostly applied to dense areas of population and power grids and places with heavy traffic; when the cable is laid in the river, the river and the seabed, the use of large-span overhead lines can be avoided. Cables may also be used where it is desirable to avoid interference of overhead lines with communications and where aesthetic considerations or exposure to objects are desired.
Most of the existing cables do not have protective sleeves, so that the cable body is easily damaged during installation, and therefore the installation personnel can be disturbed.
Disclosure of Invention
The invention aims to provide a double-flame-retardant power cable, which is characterized in that a situation that a wire harness is loosened in use is reduced through a flame-retardant filler layer, the situation that the wire harness is damaged by fire when the wire harness is used is reduced through the flame-retardant layer, and the situation that an arc-shaped plate inclines in use is reduced through a fixed rod, so that the stability of the device is improved, and the problems in the prior art are solved.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a double-flame-retardant power cable comprises a first cable conductor and a second cable conductor, wherein cavities are formed in the first cable conductor and the second cable conductor, a plurality of wire harnesses are arranged in the cavities, insulating layers are arranged on the peripheral sides of the wire harnesses, and flame-retardant filler layers are filled in the cavities;
a connecting plate is arranged between the first cable conductor and the second cable conductor, two first channels are arranged inside the connecting plate, and a limiting assembly is arranged inside each first channel;
one side of the connecting plate is provided with a transmission assembly, and two ends of the transmission assembly are respectively matched with the two limiting assemblies.
Optionally, the first cable core conductor and the second cable core conductor both include: the protective sheath, the inoxidizing coating is installed to the inside wall of protective sheath, the heat-resistant layer is installed to the inside wall of inoxidizing coating, the inner cladding is installed to the inside wall of heat-resistant layer, fire-retardant layer is installed to the inside wall of inner cladding, and the inoxidizing coating is located between protective sheath and the heat-resistant layer, and the heat-resistant layer is located between inoxidizing coating and the inner cladding, and the inner cladding is located between heat-resistant layer and the fire-retardant layer, and.
Optionally, the spacing subassembly includes: two first fixed blocks, two arcs, and the equal normal running fit of two arcs is in the channel, and two first fixed blocks are all installed in the channel, and the inside normal running fit of arc has the dead lever, and the second fixed block is installed to the tip of dead lever, and two second fixed blocks are installed respectively in the both sides on connecting plate upper portion.
Optionally, the inside normal running fit threaded rod of one of them first fixed block, and threaded rod and another first fixed block normal running fit, threaded rod normal running fit is in the channel, and first bevel gear is installed to the week side of threaded rod, and the equal screw-thread fit in both ends of threaded rod has a slip section of thick bamboo, and first spring is installed to one side of a slip section of thick bamboo, and the one end of two first springs is installed respectively in one side of two first fixed blocks.
Optionally, the two first springs are all sleeved on the periphery of the threaded rod, the two first fixing blocks are located between the two first springs, every two first springs are located between the two sliding cylinders, and the two sliding cylinders are respectively in sliding fit with the two arc-shaped plates.
Optionally, limiting plates are installed on the upper side of the arc-shaped plate, second springs are installed between the two limiting plates in one-to-one correspondence, and the connecting plate is located between the two second springs.
Optionally, the transmission assembly comprises: two dwang, and two dwang all with connecting plate normal running fit, the tip of dwang is installed second bevel gear, and two second bevel gear respectively with two first bevel gear meshing.
Optionally, a belt is arranged between the two rotating rods in a transmission fit mode, and a rotating plate is arranged at the end, far away from the connecting plate, of one rotating rod.
Optionally, the sliding block is installed to the one end of the arc that is located the connecting plate downside, and the opening has been seted up to the one end of the arc that is located the connecting plate downside.
Optionally, two sliding blocks are sliding fit in two openings respectively, and the screw thread direction of threaded rod both sides is opposite.
The embodiment of the invention has the following beneficial effects:
according to the embodiment of the invention, the situation that the wiring harness is loosened in use is reduced by the arranged flame-retardant filler layer, the situation that the wiring harness is damaged by fire when the wiring harness is used is reduced by the arranged flame-retardant layer, and the situation that the arc-shaped plate inclines in use is reduced by the arranged fixed rod, so that the stability of the device is improved.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a wiring harness structure according to an embodiment of the present invention;
FIG. 3 is a schematic view of the structure at A in FIG. 1;
FIG. 4 is a schematic view of the structure at B in FIG. 1;
fig. 5 is a schematic structural diagram at C in fig. 1.
Wherein the figures include the following reference numerals:
the cable comprises a first cable conductor 1, a protective sleeve 2, a protective layer 3, a heat-resistant layer 4, an inner cladding 5, a flame-retardant filler layer 6, a flame-retardant layer 7, a wire harness 8, an insulating layer 9, a second cable conductor 10, a connecting plate 11, a channel 12, a first fixed block 13, a threaded rod 14, a first bevel gear 15, a rotating rod 16, a second bevel gear 17, a sliding barrel 18, a first spring 19, a second fixed block 20, a fixed rod 21, an arc-shaped plate 22, a limiting plate 23, a second spring 24, a rotating plate 25, a belt 26 and a sliding block 27.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
To maintain the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known components of the invention have been omitted.
Referring to fig. 1-5, in the present embodiment, a dual flame retardant power cable is provided, including: the cable comprises a first cable core conductor 1 and a second cable core conductor 10, wherein cavities are formed in the first cable core conductor 1 and the second cable core conductor 10, a plurality of wire harnesses 8 are arranged in the cavities, an insulating layer 9 is arranged on the peripheral side of each wire harness 8, and a flame-retardant filler layer 6 is filled in the cavities;
a connecting plate 11 is arranged between the first cable conductor 1 and the second cable conductor 10, two first channels 12 are arranged inside the connecting plate 11, and a limiting component is arranged inside the first channels 12;
one side of the connecting plate 11 is provided with a transmission component, and two ends of the transmission component are respectively matched with the two limiting components.
The application of one aspect of the embodiment is as follows: when the first cable conductor 1 needs to be produced, firstly, the peripheral side of the wire harness 8 is wrapped with the insulating layer 9, then the wire harness 8 is placed in the cavity, then the cavity is filled with the flame-retardant filler layer 6, then the flame-retardant layer 7, the inner cladding layer 5, the heat-resistant layer 4, the protective layer 3 and the protective sleeve 2 are sequentially wrapped, so that the production of the first cable conductor 1 is completed, when the first cable conductor 1 and the second cable conductor 10 need to be connected, firstly, the connecting plate 11 is placed between the first cable conductor 1 and the second cable conductor 10, then, the rotating plate 25 is rotated, the rotating plate 25 drives the belt 26 to rotate through one rotating rod 16, the belt 26 drives the other rotating rod 16 to rotate, the rotating rod 16 drives the first bevel gear 15 to rotate through the second bevel gear 17, the first bevel gear 15 drives the two sliding cylinders 18 to slide through the threaded rod 14, and because the thread directions of the two, therefore, the two sliding cylinders 18 are away from each other, the two sliding cylinders 18 respectively drive the two arc-shaped plates 22 to rotate, the two arc-shaped plates 22 respectively rotate around the two fixing rods 21, then the first cable core conductor 1 and the second cable core conductor 10 are respectively placed at the lower sides of the two arc-shaped plates 22, then the first cable core conductor 1 and the second cable core conductor 10 can be fixed by reversely rotating the rotating rod 16, and when the first cable core conductor 1 and the second cable core conductor 10 need to be taken out, the first cable core conductor 1 and the second cable core conductor 10 can be taken out by rotating the rotating rod 16 again.
Through the fire-retardant filler layer 6 that sets up, it takes place to have reduced the not hard up condition of pencil 8 when using, and the fire-retardant layer 7 that sets up has reduced the condition that pencil 8 conflagration caused destruction to pencil 8 when using, and the dead lever 21 that sets up has reduced the condition emergence of arc 22 slope when using to the stability of device has been improved.
The first cable core conductor 1 and the second cable core conductor 10 of this embodiment each include: protective sheath 2, inoxidizing coating 3 is installed to protective sheath 2's inside wall, heat-resistant layer 4 is installed to inoxidizing coating 3's inside wall, inner cladding 5 is installed to heat-resistant layer 4's inside wall, fire-retardant layer 7 is installed to inner cladding 5's inside wall, and inoxidizing coating 3 is located between protective sheath 2 and the heat-resistant layer 4, heat-resistant layer 4 is located between inoxidizing coating 3 and the inner cladding 5, inner cladding 5 is located between heat-resistant layer 4 and the fire-retardant layer 7, pencil 8, insulating layer 9 all is located fire-retardant filler.
The spacing subassembly of this embodiment includes: two first fixed blocks 13, two arcs 22, and the equal normal running fit of two arcs 22 is in channel 12, and two first fixed blocks 13 are all installed in channel 12, and arc 22's inside normal running fit has dead lever 21, and second fixed block 20 is installed to the tip of dead lever 21, and two second fixed blocks 20 install the both sides on connecting plate 11 upper portion respectively.
The inside normal running fit threaded rod 14 of one of them first fixed block 13 of this embodiment, and threaded rod 14 and another first fixed block 13 normal running fit, threaded rod 14 normal running fit is in channel 12, first bevel gear 15 is installed to the week side of threaded rod 14, the equal screw-thread fit in both ends of threaded rod 14 has a slip cylinder 18, first spring 19 is installed to one side of slip cylinder 18, and the one end of two first springs 19 is installed respectively in one side of two first fixed blocks 13, through the threaded rod 14 that sets up, be convenient for rotate first bevel gear 15.
In this embodiment, the two first springs 19 are all sleeved on the peripheral side of the threaded rod 14, the two first fixing blocks 13 are both located between the two first springs 19, every two first springs 19 are both located between the two sliding cylinders 18, and the two sliding cylinders 18 are respectively in sliding fit with the two arc-shaped plates 22.
Limiting plates 23 are installed on the upper side of the arc-shaped plate 22 in the embodiment, second springs 24 are installed between two limiting plates 23 in a one-to-one correspondence, and the connecting plate 11 is located between the two second springs 24.
The transmission assembly of the present embodiment includes: two dwang 16, and two dwang 16 all with connecting plate 11 normal running fit, second bevel gear 17 is installed to the tip of dwang 16, and two second bevel gear 17 mesh with two first bevel gear 15 respectively.
A belt 26 is arranged between the two rotating rods 16 in the embodiment in a transmission fit mode, and a rotating plate 25 is arranged at the end, far away from the connecting plate 11, of one rotating rod 16.
Sliding block 27 is installed to the one end that lies in the arc 22 of connecting plate 11 downside of this embodiment, and the opening has been seted up to the one end that lies in the arc 22 of connecting plate 11 downside, through the connecting plate 11 that sets up, is convenient for rotate arc 22.
Two sliding blocks 27 of this embodiment are sliding fit in two openings respectively, and the screw thread opposite direction of threaded rod 14 both sides is through the opening that sets up, and the sliding block 27 of being convenient for slides.
The above embodiments may be combined with each other.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Claims (10)
1. A double flame retardant power cable, comprising:
the cable comprises a first cable core conductor (1) and a second cable core conductor (10), wherein cavities are formed in the first cable core conductor (1) and the second cable core conductor (10), a plurality of wire harnesses (8) are arranged in the cavities, an insulating layer (9) is arranged on the peripheral side of each wire harness (8), and a flame-retardant filler layer (6) is filled in the cavities;
a connecting plate (11) is arranged between the first cable conductor (1) and the second cable conductor (10), two first channels (12) are arranged inside the connecting plate (11), and a limiting assembly is arranged inside the first channels (12);
one side of the connecting plate (11) is provided with a transmission component, and two ends of the transmission component are respectively matched with the two limiting components.
2. The double flame retardant type power cable according to claim 1, wherein the first core conductor (1) and the second core conductor (10) each comprise: protective sheath (2), inoxidizing coating (3) are installed to the inside wall of protective sheath (2), heat-resistant layer (4) are installed to the inside wall of inoxidizing coating (3), inner cladding (5) are installed to the inside wall of heat-resistant layer (4), fire-retardant layer (7) are installed to the inside wall of inner cladding (5), and inoxidizing coating (3) are located between protective sheath (2) and heat-resistant layer (4), heat-resistant layer (4) are located between inoxidizing coating (3) and inner cladding (5), inner cladding (5) are located between heat-resistant layer (4) and fire-retardant layer (7), pencil (8), insulating layer (9) all are located fire-retardant filler layer (6).
3. The double flame retardant power cable according to claim 2, wherein the limiting member comprises: two first fixed blocks (13), two arcs (22), and the equal normal running fit of two arcs (22) is in channel (12), and two first fixed blocks (13) are all installed in channel (12), and the inside normal running fit of arc (22) has dead lever (21), and second fixed block (20) are installed to the tip of dead lever (21), and install respectively in the both sides on connecting plate (11) upper portion two second fixed blocks (20).
4. The double flame retardant type power cable according to claim 3, wherein a threaded rod (14) is rotatably fitted inside one of the first fixing blocks (13), and the threaded rod (14) is rotatably fitted to the other first fixing block (13), the threaded rod (14) is rotatably fitted in the channel (12), first bevel gears (15) are installed on the peripheral sides of the threaded rod (14), sliding cylinders (18) are threadedly fitted to both ends of the threaded rod (14), first springs (19) are installed on one sides of the sliding cylinders (18), and one ends of the two first springs (19) are installed on one sides of the two first fixing blocks (13), respectively.
5. The double flame retardant type power cable according to claim 4, wherein the two first springs (19) are sleeved on the periphery of the threaded rod (14), the two first fixing blocks (13) are located between the two first springs (19), every two first springs (19) are located between the two sliding cylinders (18), and the two sliding cylinders (18) are respectively in sliding fit with the two arc-shaped plates (22).
6. The double flame retardant type power cable according to claim 5, wherein the upper side of the arc plate (22) is mounted with a limiting plate (23), a second spring (24) is mounted between two limiting plates (23) in one-to-one correspondence, and the connecting plate (11) is located between two second springs (24).
7. The double flame retardant power cable according to claim 6, wherein the transmission assembly comprises: two dwang (16), and two dwang (16) all with connecting plate (11) normal running fit, second bevel gear (17) are installed to the tip of dwang (16), and two second bevel gear (17) mesh with two first bevel gear (15) respectively.
8. A double flame retardant type power cable according to claim 7, wherein a belt (26) is drivingly engaged between the two rotating levers (16), and a rotating plate (25) is mounted on an end portion of one of the rotating levers (16) remote from the connecting plate (11).
9. The double flame retardant power cable according to claim 8, wherein a sliding block (27) is installed at one end of the arc plate (22) located at the lower side of the connecting plate (11), and an opening is opened at one end of the arc plate (22) located at the lower side of the connecting plate (11).
10. The double flame retardant type power cable according to claim 9, wherein the two sliding blocks (27) are slidably fitted in the two openings, respectively, and the thread directions of both sides of the threaded rod (14) are opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110275530.7A CN112885524A (en) | 2021-03-15 | 2021-03-15 | Double-flame-retardant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110275530.7A CN112885524A (en) | 2021-03-15 | 2021-03-15 | Double-flame-retardant power cable |
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| Publication Number | Publication Date |
|---|---|
| CN112885524A true CN112885524A (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110275530.7A Pending CN112885524A (en) | 2021-03-15 | 2021-03-15 | Double-flame-retardant power cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117335210A (en) * | 2023-10-11 | 2024-01-02 | 河北义兴电缆有限公司 | Flame-retardant power cable |
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| CN206541661U (en) * | 2017-03-27 | 2017-10-03 | 广州民兴电线电缆有限公司 | A kind of polyvinyl chloride insulation sheath fireproof power cable |
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| JP2018203949A (en) * | 2017-06-08 | 2018-12-27 | 住友電気工業株式会社 | Flame retardant resin composition, insulation wire, and cable |
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| CN117335210A (en) * | 2023-10-11 | 2024-01-02 | 河北义兴电缆有限公司 | Flame-retardant power cable |
| CN117335210B (en) * | 2023-10-11 | 2024-03-05 | 河北义兴电缆有限公司 | Flame-retardant power cable |
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Application publication date: 20210601 |