CN209691465U - A kind of high fire-retardance power cable - Google Patents
A kind of high fire-retardance power cable Download PDFInfo
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- CN209691465U CN209691465U CN201920699142.XU CN201920699142U CN209691465U CN 209691465 U CN209691465 U CN 209691465U CN 201920699142 U CN201920699142 U CN 201920699142U CN 209691465 U CN209691465 U CN 209691465U
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- flame retardant
- high fire
- glass wool
- power cable
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Abstract
The utility model discloses a kind of high fire-retardance power cables, including outer protection mechanism, positioning mechanism and core mechanism, the outer protection mechanism includes low-smoke halogen-free flame-retardant sheath and glass wool cloth, the glass wool cloth is located at the inside of low-smoke halogen-free flame-retardant sheath, the core mechanism is at least provided with two, and core mechanism includes cable core, the outside of the cable core is enclosed with inner insulating layer, the outer surface of the inner insulating layer is coated with the second flame retardant coating, the positioning mechanism includes intermediate mass and snap ring, the intermediate mass connects at least two snap rings, the core mechanism is located at the inside of snap ring, the positioning mechanism is located at the inside of outer protection mechanism, the inside of the outer protection mechanism is filled with flame retardant filler, the utility model is provided with positioning mechanism to core mechanism, positioning mechanism can lock the position of core mechanism , so that the distortion of core mechanism and the situation unstable in filler interior location will not be generated in this cable of integral manufacturing.
Description
Technical field
The utility model relates to field of cable technology, specially a kind of high fire-retardance power cable.
Background technique
Existing high fire-retardance power cable is generally low-smoke halogen-free cable, and internal core installation is generally directly by line
Core is arranged inside flame retardant filler, protective layer then is arranged in the external of flame retardant filler, this mode easily has core appearance
Easily in filler internal distortion, either there is a situation where core position is unstable.
Utility model content
The purpose of this utility model is to provide a kind of high fire-retardance power cables, it is intended to improve core and be easy in filler
Either there is a situation where the unstable problems in core position for portion's distortion.
The utility model is realized in this way:
A kind of high fire-retardance power cable, including outer protection mechanism, positioning mechanism and core mechanism, the outer protection mechanism packet
Low-smoke halogen-free flame-retardant sheath and glass wool cloth are included, the glass wool cloth is located at the inside of low-smoke halogen-free flame-retardant sheath, the low cigarette
The first insulating layer is provided between halogen-free flameproof sheath and glass wool cloth, it is fire-retardant that the inner surface of the glass wool cloth is coated with first
Coating, the core mechanism is at least provided with two, and core mechanism includes cable core, the external package of the cable core
There is inner insulating layer, the outer surface of the inner insulating layer is coated with the second flame retardant coating, and the positioning mechanism includes intermediate mass and card
Ring, the intermediate mass connect at least two snap rings, and the core mechanism is located at the inside of snap ring, and the positioning mechanism is located at outer guarantor
The inside of mechanism is protected, the inside of the outer protection mechanism is filled with flame retardant filler.
Further, the snap ring includes ring body, interior convex arc, outer protrusive board and opening, and the side of ring body is set as being open
End.
Further, the two sides of the opening are provided with interior convex arc, and interior convex arc is provided with evagination far from one end of ring body
Plate.
Further, the ring body, interior convex arc and outer protrusive board are made of plastics, and ring body, interior convex arc and outer protrusive board one
Molding.
Further, first flame retardant coating and the second flame retardant coating are nitrogenous coating.
Compared with prior art, the utility model has the beneficial effects that the utility model is provided with positioning to core mechanism
Mechanism, positioning mechanism can lock the position of core mechanism, so that will not generate core machine in this cable of integral manufacturing
Structure distortion and the situation unstable in filler interior location.
Detailed description of the invention
It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not
It should be considered as the restriction to range, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 is the schematic diagram of internal structure of the utility model；
Fig. 2 is the structural schematic diagram of the utility model snap ring.
In figure: 1, outer protection mechanism；11, low-smoke halogen-free flame-retardant sheath；12, the first insulating layer；13, glass wool cloth；14,
One flame retardant coating；2, positioning mechanism；21, intermediate mass；22, snap ring；221, ring body；222, interior convex arc；223, outer protrusive board；224, it opens
Mouthful；3, core mechanism；31, the second flame retardant coating；32, inner insulating layer；33, cable core；4, flame retardant filler.
Specific embodiment
It is practical below in conjunction with this to keep the purposes, technical schemes and advantages of the utility model embodiment clearer
The technical solution in the utility model embodiment is clearly and completely described in attached drawing in novel embodiment, shows
So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.It is practical based on this
Embodiment in novel, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment is fallen within the protection scope of the utility model.Therefore, the implementation to the utility model provided in the accompanying drawings below
The detailed description of mode is not intended to limit the range of claimed invention, but is merely representative of the utility model
Selected embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative labor
Every other embodiment obtained under the premise of dynamic, fall within the protection scope of the utility model.
Shown in referring to Fig.1, a kind of high fire-retardance power cable, including outer protection mechanism 1, positioning mechanism 2 and core mechanism 3,
Outer protection mechanism 1 includes low-smoke halogen-free flame-retardant sheath 11 and glass wool cloth 13, and low-smoke halogen-free flame-retardant sheath 11 is not halogen friendship
Join polyethylene (XLPE) fire proofing, not only there is better flame-retarding characteristic, but also there is no halogen acid gas to put in cable fire
Out；
Glass wool cloth 13 is located at the inside of low-smoke halogen-free flame-retardant sheath 11, low-smoke halogen-free flame-retardant sheath 11 and glass wool cloth 13
Between be provided with the first insulating layer 12, the inner surface of glass wool cloth 13 is coated with the first flame retardant coating 14, fire-retardant glass wool cloth
13 be made of coating the first flame retardant coating 14 with 13 single or double of glass wool cloth, to effectively improve the fire-retardant of crosslinked polyethylene
Performance；
With continued reference to shown in Fig. 1, core mechanism 3 is at least provided with two, and core mechanism 3 includes cable core 33, electricity
The outside of cable core 33 is enclosed with inner insulating layer 32, and the outer surface of inner insulating layer 32 is coated with the second flame retardant coating 31, cable
Core 33 plays electric action, and inner insulating layer 32 plays insulating effect, and the second flame retardant coating 31 plays secondary fire retardation；
Shown in referring to Figures 1 and 2, positioning mechanism 2 includes intermediate mass 21 and snap ring 22, at least two card of the connection of intermediate mass 21
Ring 22, core mechanism 3 is located at the inside of snap ring 22, and in hookup wire core mechanism 3, core mechanism 3 is directly filled in snap ring 22
Inside；
Referring to shown in Fig. 2, snap ring 22 includes ring body 221, interior convex arc 222, outer protrusive board 223 and be open 224, and ring body 221
Side be set as opening 224,224 two sides of being open are provided with interior convex arc 222, the interior one end of convex arc 222 far from ring body 221
It is provided with outer protrusive board 223, ring body 221, interior convex arc 222 and outer protrusive board 223 are made of plastics, and ring body 221,222 and of interior convex arc
Outer protrusive board 223 is integrally formed, and core mechanism 3 is passed through opening 224 successively after outer protrusive board 223 and interior convex arc 222, into ring
The inside of body 221, plastics have certain elasticity, so giving snap ring 22 certain elasticity, guarantee that core mechanism 3 can be convenient
The inside for filling in ring body 221；
Shown in referring to Fig.1, positioning mechanism 2 is located at the inside of outer protection mechanism 1, and the inside of outer protection mechanism 1 is filled with resistance
Filler 4 is fired, flame retardant filler 4 can play fire retardation；
First flame retardant coating 14 and the second flame retardant coating 31 are nitrogenous coating, and nitrogenous anti-flaming dope is heated to be decomposited
The groups such as NO, NH3 interrupt chain reaction with organic free radical chemical combination, reduce temperature.
Working principle: in hookup wire core mechanism 3, outer 223 He of protrusive board is successively passed through by opening 224 by core mechanism 3
After interior convex arc 222, into the inside of ring body 221, plastics have certain elasticity, so giving snap ring 22 certain elasticity, protect
Card core mechanism 3 can easily fill in the inside of ring body 221；
When using the present apparatus, low-smoke halogen-free flame-retardant sheath 11, the first flame retardant coating 14, the second flame retardant coating 31 and fire-retardant
Filler 4 can play fire retardation.
Above description is merely a prefered embodiment of the utility model, is not intended to limit the utility model, for
For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model
Within then, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of high fire-retardance power cable, including outer protection mechanism (1), positioning mechanism (2) and core mechanism (3), feature exists
In: the outer protection mechanism (1) includes low-smoke halogen-free flame-retardant sheath (11) and glass wool cloth (13), glass wool cloth (13) position
It is provided between the inside of low-smoke halogen-free flame-retardant sheath (11), the low-smoke halogen-free flame-retardant sheath (11) and glass wool cloth (13)
The inner surface of first insulating layer (12), the glass wool cloth (13) is coated with the first flame retardant coating (14), the core mechanism (3)
At least provided with two, and core mechanism (3) includes cable core (33), and the outside of the cable core (33) is enclosed with interior exhausted
Edge layer (32), the outer surface of the inner insulating layer (32) are coated with the second flame retardant coating (31), during the positioning mechanism (2) includes
Between block (21) and snap ring (22), the intermediate mass (21) connects at least two snap rings (22), and the core mechanism (3) is located at snap ring
(22) inside, the positioning mechanism (2) are located at the inside of outer protection mechanism (1), the inside filling of the outer protection mechanism (1)
There are flame retardant filler (4).
2. a kind of high fire-retardance power cable according to claim 1, which is characterized in that the snap ring (22) includes ring body
(221), interior convex arc (222), outer protrusive board (223) and opening (224), and the side of ring body (221) is set as opening (224) end.
3. a kind of high fire-retardance power cable according to claim 2, which is characterized in that the two sides of the opening (224) are equal
It is provided with interior convex arc (222), interior convex arc (222) is provided with outer protrusive board (223) far from the one end of ring body (221).
4. a kind of high fire-retardance power cable according to claim 2, which is characterized in that the ring body (221), interior convex arc
(222) it is made with outer protrusive board (223) of plastics, and ring body (221), interior convex arc (222) and outer protrusive board (223) are integrally formed.
5. a kind of high fire-retardance power cable according to claim 1, which is characterized in that first flame retardant coating (14) with
Second flame retardant coating (31) is nitrogenous coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920699142.XU CN209691465U (en) | 2019-05-16 | 2019-05-16 | A kind of high fire-retardance power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920699142.XU CN209691465U (en) | 2019-05-16 | 2019-05-16 | A kind of high fire-retardance power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209691465U true CN209691465U (en) | 2019-11-26 |
Family
ID=68608797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920699142.XU Active CN209691465U (en) | 2019-05-16 | 2019-05-16 | A kind of high fire-retardance power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209691465U (en) |
-
2019
- 2019-05-16 CN CN201920699142.XU patent/CN209691465U/en active Active
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