CN210200379U

CN210200379U - Multi-core smokeless cable

Info

Publication number: CN210200379U
Application number: CN201921202154.3U
Authority: CN
Inventors: Haozhi Xie; 谢浩志; Haozhou Xie; 谢浩洲
Original assignee: Sichuan Zhongcable Tiantai Technology Co Ltd
Current assignee: Sichuan Zhongcable Tiantai Technology Co Ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-03-27
Anticipated expiration: 2029-07-29

Abstract

The utility model discloses a multicore smokeless cable, including the fire prevention core, laid the recess on the fire prevention core, installed the sinle silk in the recess respectively, the heat preservation filler has been filled between the sinle silk, and the sinle silk has solid layer with the outer wall parcel that the heat preservation was packed, and the outer wall parcel on solid layer has the fire fiber layer that separates, and the outer wall parcel that separates the fire fiber layer has the heat insulating layer. The heat insulating layer is not only thermal-insulated effectual, and can not burn, can be under outside burning high temperature environment, it is fire-retardant to insulate against heat to the core, separate fire fiber layer can not burn, can carry out outside fire source separation to its inside, it is fixed through the coiling on solid layer, can stabilize the position of sinle silk in the recess, and then stabilize the packing that keeps warm and load the position, and solid layer can assist the check of heat preservation packing to outside fire source to keep warm, it has good heat insulating ability to keep warm the packing, it can not burn simultaneously, heat preservation packing parcel sinle silk, can prevent outside fire source from transmitting to the sinle silk on, the sinle silk crust is difficult for melting under high temperature environment.

Description

Multi-core smokeless cable

Technical Field

The utility model relates to a multicore smokeless cable.

Background

The cable is a general name of articles such as optical cables, electric cables and the like, has a plurality of purposes, is mainly used for controlling installation, connecting equipment, transmitting electric power and the like, and is a common and indispensable object in daily life.

The current four-core smokeless cable for electric power transmission, inside is provided with four sinle silks, the sinle silk is the copper wire stranded conductor, the outside parcel of copper wire stranded conductor has low halogen smokeless polyvinyl chloride cortex, and through fire-retardant non-woven fabrics parcel sinle silk, non-woven fabrics outer wall parcel surrounding layer, the surrounding layer adopts low halogen smokeless polyvinyl chloride to make equally, when the condition of a fire is uncontrollable, because the halogen element content of sinle silk and surrounding layer is few, when cable sinle silk cortex and surrounding layer melt, can not produce poisonous flue gas, the weak point of existence has: this kind of multicore smokeless cable, its inside heat-proof quality is not enough, causes the sinle silk crust to melt easily under outside high temperature environment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a multicore smokeless cable to it is not good enough to provide inside heat-proof nature in solving above-mentioned background art, causes the problem that the sinle silk crust melts easily under outside high temperature environment.

In order to achieve the above object, an embodiment of the utility model provides a multicore smokeless cable, including the fire prevention core, the recess has been laid on the fire prevention core, the sinle silk has been installed respectively in the recess, it packs to keep warm to pack between the sinle silk, the sinle silk has solid layer with the outer wall parcel that keeps warm to pack, the outer wall parcel of solid layer has the fire insulation fiber layer, the outer wall parcel on fire insulation fiber layer has the heat insulation layer, the outer wall parcel on heat insulation layer has the surrounding layer.

Furthermore, the main section of the fireproof core is circular, and the axial length of the fireproof core is the same as that of the cable.

Furthermore, the solid layer is formed by winding flame-retardant non-woven fabrics on the wire core and the heat-preservation filler, and the axial length of the solid layer is the same as that of the cable.

Further, the thickness of the fire-proof fiber layer is at least three millimeters.

Further, the thermal insulation layer is at least four millimeters thick.

To sum up, the utility model has the advantages of it is following: the heat insulation layer is not only good in heat insulation effect, but also can not burn, can be under the high-temperature environment of external combustion, insulate against heat and retard fire to the core, separate fire fiber layer and can not burn, can carry out the separation of outside fire source to its inside, it is fixed through the coiling of solid layer, can stabilize the position of sinle silk in the recess, and then stabilize the packing position that keeps warm, and solid layer can assist the check of heat preservation packing to outside fire source, the heat preservation packing has good heat insulating ability, it can not burn simultaneously, and heat preservation packing parcel sinle silk, can prevent outside fire source from transmitting to the sinle silk on, therefore the sinle silk crust is difficult to melt under high temperature environment, it is not good enough to have solved inside heat-proof nature, cause the problem that the sinle silk crust melts easily under.

Drawings

Fig. 1 is a schematic front view of an embodiment of the present invention;

fig. 2 is a schematic right-view partially cut-away view in one embodiment of the present invention;

fig. 3 is a schematic top view partially cut away in one embodiment of the present invention.

Wherein, 1 fireproof core, 2 grooves, 3 wire cores, 4 heat preservation fillers, 5 solid layers, 6 fire insulation fiber layers, 7 heat insulation layers and 8 outer cladding layers.

Detailed Description

Please refer to fig. 1, fig. 2 and fig. 3, a multi-core smokeless cable includes a fireproof core 1, a main view cross section of the fireproof core 1 is circular, an axial length of the fireproof core 1 is the same as that of the cable, the fireproof core 1 is formed by injection molding of flame-retardant polyvinyl chloride, grooves 2 are distributed on the fireproof core 1, the number of the grooves 2 is four, the grooves are uniformly arranged on an outer wall of the fireproof core 1 in an annular manner, wire cores 3 are respectively arranged in the grooves 2, an inner wall of each groove 2 is in sliding fit with outer walls of the wire cores 3, heat preservation fillers 4 are filled between the wire cores 3, the heat preservation fillers 4 are formed by filling asbestos fibers between the wire cores 3, the heat preservation fillers 4 have good heat preservation performance and cannot burn, and the heat preservation fillers 4 wrap the wire cores 3 and can prevent an external fire source from being transmitted to the wire cores 3.

Referring to fig. 1, 2 and 3, the outer walls of the wire core 3 and the thermal insulation filler 4 are wrapped with a solid layer 5, the solid layer 5 is formed by winding flame-retardant non-woven fabric on the wire core 3 and the thermal insulation filler 4, the position of the wire core 3 in the groove 2 can be stabilized by winding and fixing the solid layer 5, further stabilizing the filling position of the heat-insulating filler 4, enabling the solid layer 5 to assist the heat-insulating filler to block an external fire source, enabling the axial length of the solid layer 5 to be the same as that of the cable, enabling the outer wall of the solid layer 5 to be wrapped with the fire-insulating fiber layer 6, enabling the fire-insulating fiber layer 6 to be a glass fiber layer and not to be burnt, the interior of the fiber layer can be blocked by an external fire source, the thickness of the fire-proof fiber layer 6 is three millimeters, the outer wall of the fire-proof fiber layer 6 is wrapped by the heat-insulating layer 7, the heat-insulating layer 7 is made of ethylene propylene diene monomer, the heat-insulating effect is good, and can not burn, the thickness of the heat insulation layer 7 is four millimeters, and the outer wall of the heat insulation layer 7 is wrapped with an outer cladding layer 8.

Thermal-insulated effectual not only of heat insulation layer 7, and can not burn, can be under outside burning high temperature environment, it is fire-retardant to insulate against heat to core 3, it can not burn to separate fire fiber layer 6, can carry out outside fire source separation to its inside, it is fixed through the coiling of solid layer 5, can stabilize the position of core 3 in recess 2, and then stabilize heat preservation filler 4 and load the position, and solid layer 5 can assist the check of heat preservation filler to outside fire source and keep off, heat preservation filler 4 has good heat insulating ability, it can not burn simultaneously, and heat preservation filler 4 parcel sinle silk 3, can prevent outside fire source from transmitting on the sinle silk 3, therefore 3 crust of sinle silk is difficult for melting under high temperature environment.

While the present invention has been described in detail and with reference to the accompanying drawings, it is not to be considered as limited to the scope of the invention. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.

Claims

1. A multicore smokeless cable, includes fire prevention core (1), its characterized in that: the fireproof core is characterized in that a groove (2) is formed in the fireproof core (1), wire cores (3) are arranged in the groove (2) respectively, heat-insulation fillers (4) are filled between the wire cores (3), the wire cores (3) and the outer walls of the heat-insulation fillers (4) are wrapped by a solid layer (5), the outer walls of the solid layer (5) are wrapped by a fire-insulation fiber layer (6), the outer walls of the fire-insulation fiber layer (6) are wrapped by a heat-insulation layer (7), and the outer walls of the heat-insulation layer (7) are wrapped by an outer wrapping layer (8).

2. The multi-core smokeless cable of claim 1, wherein: the main section of the fireproof core (1) is circular, and the axial length of the fireproof core (1) is the same as that of the cable.

3. The multi-core smokeless cable of claim 1, wherein: the fixing layer (5) is formed by winding flame-retardant non-woven fabrics on the wire core (3) and the heat-preservation filler (4), and the axial length of the fixing layer (5) is the same as that of the cable.

4. The multi-core smokeless cable of claim 1, wherein: the thickness of the fire-insulating fiber layer (6) is at least three millimeters.

5. The multi-core smokeless cable of claim 1, wherein: the heat insulation layer (7) is at least four millimeters thick.