CN210325300U - Polyvinyl chloride insulation fire-resistant cable - Google Patents
Polyvinyl chloride insulation fire-resistant cable Download PDFInfo
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- CN210325300U CN210325300U CN201921229169.9U CN201921229169U CN210325300U CN 210325300 U CN210325300 U CN 210325300U CN 201921229169 U CN201921229169 U CN 201921229169U CN 210325300 U CN210325300 U CN 210325300U
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Abstract
The utility model relates to the technical field of cables, specific polyvinyl chloride insulation fire resisting cable that says so, including polyvinyl chloride restrictive coating, heat-resistant layer, outer shielding layer and band layer, polyvinyl chloride restrictive coating, heat-resistant layer, outer shielding layer and band layer set gradually from outer to interior, the band in situ portion is provided with the insulating frame, the edge of insulating frame evenly is provided with the sectorial dog of a plurality of groups, be provided with the storage tank of U type between the dog, be provided with wired core subassembly in the storage tank, the sinle silk subassembly includes from outer external insulation layer, internal shield layer, internal insulation layer and the sinle silk that sets gradually to interior, the outer lane and the band layer laminating of dog, be provided with the filler structure layer in the clearance between sinle silk subassembly and the band layer. The heat-resistant layer is a rock wool structure layer, has a certain flame-retardant effect, improves the fire resistance of the cable, improves the tensile strength of the cable, and is not easy to break.
Description
Technical Field
The utility model relates to the technical field of cables, specifically a polyvinyl chloride insulation fire resisting cable.
Background
The inventor researches and discovers that the fire resistance of the traditional cable is poor and the tensile strength of the traditional cable is not ideal, so how to invent a polyvinyl chloride insulating fire-resistant cable to improve the problems becomes a problem to be solved by the technicians in the field.
SUMMERY OF THE UTILITY MODEL
In order to make up for above not enough, the utility model aims to provide an insulating fire resisting cable of polyvinyl chloride aims at improving traditional cable fire resistance than poor and the not ideal problem of tensile strength of traditional cable.
The technical scheme of the utility model is that: the utility model provides a polyvinyl chloride insulation fire resisting cable, includes polyvinyl chloride restrictive coating, heat-resisting layer, outer shielding layer and band layer, polyvinyl chloride restrictive coating, heat-resisting layer, outer shielding layer and band layer set gradually from outer to interior, band layer inside is provided with the insulating frame, the edge of insulating frame evenly is provided with the sectorial dog of a plurality of groups, be provided with the storage tank of U type between the dog, set up wired core subassembly in the storage tank, the sinle silk subassembly includes outer insulation layer, inner shield layer, inner insulation layer and the sinle silk that sets gradually from outer to interior, the outer lane and the band layer laminating of dog, be provided with filler structure layer in the clearance between sinle silk subassembly and the band layer.
As the further optimization of the technical scheme, the first steel wire penetrates through the middle of the insulating frame, the second steel wire penetrates through the stop block of the insulating frame, the tensile strength of the cable is improved through the design of the first steel wire and the second steel wire, and the cable is not easily broken.
As a further optimization of the technical scheme, the first steel wire is a steel wire with a diameter not less than 2mm, and the second steel wire is a steel wire with a diameter not less than 1 mm.
As a further optimization of the technical scheme, the heat-resistant layer is a rock wool structure layer, the heat-resistant layer has a certain flame-retardant effect, the fire resistance of the cable is improved, and the outer shielding layer is a thin steel wire armor layer and has a certain external shielding effect.
As a further optimization of the technical scheme, the outer insulating layer and the inner insulating layer are both polyethylene structural layers, and the inner shielding layer is a copper wire armored shielding layer, so that a certain shielding effect is achieved between the inner wire core assemblies.
As further optimization of the technical scheme, the filler structural layer is polyurethane foaming filler.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to an insulating fire resisting cable of polyvinyl chloride adopts the combined type structure, polyvinyl chloride restrictive coating, the heat resistance layer, outer shielding layer and band layer set gradually from outer to interior, the heat resistance layer is the rock wool structural layer, the heat resistance layer has certain flame retardant efficiency, promote the fire resistance of cable, outer shielding layer is thin steel wire armor, certain outside shielding effect has, the sinle silk subassembly is located the storage tank, it is more firm, design through first copper wire and second copper wire, the tensile strength of cable has been promoted, be difficult to being broken, the inner shield layer is copper wire armor shielding layer, certain shielding effect has between the sinle silk subassembly that makes inside, and is suitable for being generalized to use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 these drawings without inventive exercise.
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the insulating frame of the present invention;
fig. 3 is the schematic diagram of the structure of the core assembly of the present invention.
In the figure: 1-a polyvinyl chloride sheath layer; 2-heat resistant layer; 3-an outer shielding layer; 4-a belting layer; 5-an insulating frame; 501-a stop block; 502-a receiving groove; 503-a first steel wire; 504-a second steel wire; 6-a filler structure layer; 7-a core assembly; 701-an outer insulating layer; 702-an inner shield layer; 703-an inter-insulating layer; 704-core of wire.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a polyvinyl chloride insulating fire-resistant cable comprises a polyvinyl chloride sheathing layer 1, a heat-resistant layer 2, an outer shielding layer 3 and a wrapping tape layer 4, and is of a composite structure, wherein the polyvinyl chloride sheathing layer 1, the heat-resistant layer 2, the outer shielding layer 3 and the wrapping tape layer 4 are sequentially arranged from outside to inside, the heat-resistant layer 2 is a rock wool structure layer, the heat-resistant layer 2 has a certain flame-retardant effect, the fire resistance of the cable is improved, and the outer shielding layer 3 is a thin steel wire armor layer and has a certain external shielding effect.
The insulating frame 5 is arranged inside the belting layer 4, a plurality of groups of fan-shaped stoppers 501 are uniformly arranged at the edge of the insulating frame 5, U-shaped accommodating grooves 502 are formed between the stoppers 501, a first steel wire 503 penetrates through the middle of the insulating frame 5, second steel wires 504 penetrate through the stoppers 501 of the insulating frame 5, the tensile strength of the cable is improved through the design of the first steel wire 503 and the second steel wire 504, the cable is not easily broken, the first steel wire 503 is a steel wire with the diameter not less than 2mm, the second steel wire 504 is a steel wire with the diameter not less than 1mm, and the distribution of the first steel wire 503 and the second steel wire 504 is shown in fig. 2.
The cable core assembly 7 is arranged in the accommodating groove 502, the cable core assembly 7 comprises an outer insulating layer 701, an inner shielding layer 702, an inner insulating layer 703 and a cable core 704 which are sequentially arranged from outside to inside, the outer insulating layer 701 and the inner insulating layer 703 are polyethylene structural layers, the inner shielding layer 702 is a copper wire armored shielding layer, a certain shielding effect is achieved between the inner cable core assembly 7, the outer ring of the stopper 501 is attached to the wrapping tape layer 4, a filler structural layer 6 is arranged in a gap between the cable core assembly 7 and the wrapping tape layer 4, and polyurethane foaming filler of the filler structural layer 6 is arranged.
Specifically, adopt combined type structure, polyvinyl chloride restrictive coating 1, heat-resistant layer 2, outer shielding layer 3 and band layer 4 set gradually from outer to interior, heat-resistant layer 2 is the rock wool structural layer, heat-resistant layer 2 has certain flame retardant efficiency, promote the fire resistance of cable, outer shielding layer 3 is thin steel wire armor, certain external shielding effect has, sinle silk subassembly 7 is located storage tank 502, it is more firm, design through first copper wire 503 and second copper wire 504, the tensile strength of cable has been promoted, be difficult to be broken, inner shielding layer 702 is copper wire armor shielding layer, certain shielding effect has between the sinle silk subassembly 7 of messenger's inside, and is suitable for being generalized to use.
The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides an insulating fire resisting cable of polyvinyl chloride, includes polyvinyl chloride restrictive coating (1), heat-resistant layer (2), outer shielding layer (3) and band layer (4), its characterized in that: polyvinyl chloride restrictive coating (1), heat-resistant layer (2), outer shielding layer (3) and band layer (4) set gradually from outer to interior, band layer (4) inside is provided with insulating frame (5), the edge of insulating frame (5) evenly is provided with sectorial dog (501) of a plurality of groups, be provided with storage tank (502) of U type between dog (501), set up cable core subassembly (7) in storage tank (502), cable core subassembly (7) are including outer insulating layer (701), inner shielding layer (702), inner insulating layer (703) and sinle silk (704) that set gradually from outer to interior, the outer lane and the band layer (4) laminating of dog (501), be provided with filler structural layer (6) in the clearance between cable core subassembly (7) and band layer (4).
2. The fire-resistant polyvinyl chloride insulated cable according to claim 1, wherein: a first steel wire (503) penetrates through the middle of the insulating frame (5), and second steel wires (504) penetrate through the stop blocks (501) of the insulating frame (5).
3. The fire-resistant polyvinyl chloride insulated cable according to claim 2, wherein: the first steel wire (503) is a steel wire with the diameter not less than 2mm, and the second steel wire (504) is a steel wire with the diameter not less than 1 mm.
4. The fire-resistant polyvinyl chloride insulated cable according to claim 1, wherein: the heat-resistant layer (2) is a rock wool structure layer, and the outer shielding layer (3) is a thin steel wire armor layer.
5. The fire-resistant polyvinyl chloride insulated cable according to claim 1, wherein: the outer insulating layer (701) and the inner insulating layer (703) are both polyethylene structure layers, and the inner shielding layer (702) is a copper wire armored shielding layer.
6. The fire-resistant polyvinyl chloride insulated cable according to claim 1, wherein: the filler structure layer (6) is polyurethane foaming filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921229169.9U CN210325300U (en) | 2019-08-01 | 2019-08-01 | Polyvinyl chloride insulation fire-resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921229169.9U CN210325300U (en) | 2019-08-01 | 2019-08-01 | Polyvinyl chloride insulation fire-resistant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210325300U true CN210325300U (en) | 2020-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921229169.9U Active CN210325300U (en) | 2019-08-01 | 2019-08-01 | Polyvinyl chloride insulation fire-resistant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210325300U (en) |
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2019
- 2019-08-01 CN CN201921229169.9U patent/CN210325300U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214000 No.100, Zhutang village, Batang village, Yangxiang Town, Yixing City, Wuxi City, Jiangsu Province Patentee after: Jiangsu chili Cable Co.,Ltd. Address before: 214000 No.100, Zhutang village, Batang village, Yangxiang Town, Yixing City, Wuxi City, Jiangsu Province Patentee before: Wuxi chili Cable Technology Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |