CN217880928U

CN217880928U - Reinforced fireproof cable for fire protection

Info

Publication number: CN217880928U
Application number: CN202221754404.6U
Authority: CN
Inventors: 郜从金; 邹卿
Original assignee: Jiangsu Yaoxin Technology Co ltd
Current assignee: Jiangsu Yaoxin Technology Co ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2022-11-22
Anticipated expiration: 2032-07-07

Abstract

The utility model belongs to the technical field of the cable, specifically be a strenghthened type fireproof cable for fire control, the cable core is included, the outside cover of cable core is equipped with the inner jacket layer, the outside cover of inner jacket layer is equipped with interior flame retardant coating, the outside cover of interior flame retardant coating is equipped with the insulating layer, the outside cover of insulating layer is equipped with outer flame retardant coating, the insulating layer includes dull and stereotyped layer and honeycomb layer, honeycomb holes has been seted up on the body of honeycomb layer, dull and stereotyped layer and honeycomb layer alternate arrangement, the inlayer and the outmost dull and stereotyped layer that are of insulating layer, the thickness of honeycomb layer is two times of dull and stereotyped layer thickness and more than, and this device sets up the insulating layer between outer flame retardant coating and interior flame retardant coating, delays heat-conduction through the insulating layer for outer flame retardant coating is before not destroyed, and interior flame retardant coating still can keep the lower temperature, and outer flame retardant coating is destroyed the back promptly, and interior flame retardant coating still can continue the fire prevention to improve the fire behavior of this device.

Description

Reinforced fireproof cable for fire protection

Technical Field

The utility model relates to the technical field of cables, specifically be a strenghthened type fireproof cable is used in fire control.

Background

The cables used in fire protection systems are typically of the fire-resistant type. The fireproof cable can adopt an environment-friendly low-smoke halogen-free fireproof material as a shell, the stable transmission of electric power is kept under the normal working condition of the low-smoke halogen-free fireproof material, and the cable can still keep normal operation within a certain time when the cable is ignited and combusted. The system is suitable for lines which still need to keep normal operation in case of fire, such as fire-fighting systems, emergency lighting systems, life-saving systems, alarm and important monitoring loops and the like of industrial and civil buildings.

The quality of the fireproof cable mainly depends on the time that the cable can normally run when the fireproof cable is in fire and is burnt, and the fireproof performance of the external fireproof material on one hand and the heat insulation performance of the external heat insulation material on the other hand are influenced; the fire resistance and the heat insulation performance of the material are limited by science and technology, and the production cost of the fireproof cable is increased along with the improvement of the fire resistance and the heat insulation performance of the material.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a strenghthened type fireproof cable is used in fire control to solve the current fireproof cable that proposes in the above-mentioned background art and rely on the heat-proof quality of material to carry out thermal-insulated problem.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a strenghthened type fireproof cable for fire control, includes the cable core, the outside cover of cable core is equipped with the inner jacket layer, the outside cover of inner jacket layer is equipped with interior flame retardant coating, the outside cover of interior flame retardant coating is equipped with the insulating layer, the outside cover of insulating layer is equipped with outer flame retardant coating, the insulating layer includes dull and stereotyped layer and honeycomb layer, honeycomb holes has been seted up on the body on honeycomb layer, dull and stereotyped layer and honeycomb layer alternate arrangement, the inlayer and the outmost dull and stereotyped layer that are of insulating layer, the thickness on honeycomb layer is two times of dull and stereotyped layer thickness and more than, honeycomb layer quantity is two layers at least in the insulating layer.

Preferably, the outer side of the outer fireproof layer is sleeved with a wear-resistant layer.

Preferably, a waterproof layer is arranged between the outer fire-resistant layer and the heat-insulating layer.

Preferably, the inner side of the inner jacket layer is provided with a positioning sleeve, the positioning sleeve is clamped on the outer side of the cable cores, the number of the cable cores on the inner side of the inner jacket layer is at least three, and the cable cores are tangent to one another.

Preferably, the cable core includes metal conductor, metal conductor's outside cover is equipped with the shielding layer, the outside cover of shielding layer is equipped with the insulating layer.

Compared with the prior art, the beneficial effects of the utility model are that:

1) The inner side of the outer fire-resistant layer is provided with the heat-insulating layer, the heat-insulating layer can reduce the heat conduction efficiency through heat insulation of the heat-insulating layer, the heat-insulating layer is arranged into a flat plate layer and a honeycomb layer, honeycomb holes are formed in the honeycomb layer, the pores of the heat-insulating layer can be enlarged, and the heat-insulating effect is further improved;

2) The device is provided with the heat insulating layer between the outer flame retardant coating and the inner flame retardant coating, and the heat conduction is delayed through the heat insulating layer, so that the inner flame retardant coating can still keep a lower temperature before the outer flame retardant coating is not damaged, namely, the inner flame retardant coating can still continue to prevent fire after the outer flame retardant coating is damaged, and the fire resistance of the device is improved.

Drawings

FIG. 1 is a schematic sectional view of the front view of the present invention;

FIG. 2 is a schematic sectional view of the inner jacket layer of the present invention;

FIG. 3 is a schematic view of the left side view of the heat insulation layer of the present invention;

figure 4 is the utility model discloses cable core front view sectional structure schematic diagram.

In the figure: 1 wear-resistant layer, 2 outer flame retardant coatings, 3 waterproof layers, 4 heat-insulating layers, 41 flat plate layers, 42 honeycomb layers, 5 inner flame retardant layers, 6 inner jacket layers, 7 positioning sleeves, 8 cable cores, 81 metal conductors, 82 shielding layers and 83 insulating layers.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example (b):

referring to fig. 1-4, the present invention provides a technical solution: a reinforced fireproof cable for fire protection comprises a cable core 8, wherein an inner sleeve layer 6 is sleeved on the outer side of the cable core 8, the inner sleeve layer 6 is made of nylon, the nylon has high elastic recovery rate and can withstand repeated bending without breaking, the cable core 8 and an inner flame retardant coating 5 can be prevented from rubbing under the protection of the inner sleeve layer 6, the cable core 8 and the inner flame retardant coating 5 are further protected, an inner flame retardant coating 5 is sleeved on the outer side of the inner sleeve layer 6, the inner flame retardant coating 5 is made of an environment-friendly low-smoke halogen-free fireproof material, the inner flame retardant coating 6 is protected against fire by the inner flame retardant coating 5, a heat insulation layer 4 is sleeved on the outer side of the inner flame retardant coating 5, the heat insulation layer 4 is made of heat insulation materials such as polyurethane, the heat conduction efficiency of high temperature can be reduced by the heat insulation layer 4, the inner flame retardant coating 5 is prevented from being subjected to overhigh temperature, an outer flame retardant coating 2 is sleeved on the outer side of the heat insulation layer 4, and the outer flame retardant coating 2 is formed by weaving glass fibers, the heat insulation layer 4 comprises a flat plate layer 41 and a honeycomb layer 42, honeycomb holes are formed in the body of the honeycomb layer 42, heat insulation materials are isolated by using pores, the heat insulation layer 4 is divided into the flat plate layer 41 and the honeycomb layer 42, then the honeycomb layer 42 is arranged in a honeycomb shape, gaps of the heat insulation layer 4 can be enlarged, the heat insulation effect is further improved, the flat plate layer 41 and the honeycomb layer 42 are arranged alternately, too many honeycomb holes in the honeycomb layer 42 easily cause unstable shapes, the flat plate layer 41 is arranged between the honeycomb layers 42 to be connected with the honeycomb layer 42, the shapes of the heat insulation layer 4 can be stabilized, the innermost layer and the outermost layer of the heat insulation layer 4 are the flat plate layers 41, the thickness of the honeycomb layer 42 is twice or more than that of the flat plate layer 41, and the heat conduction efficiency of the honeycomb layer 42 is improved due to the too large thickness of the flat plate layer 41, the number of honeycomb layers 42 in the thermal insulation layer 4 is at least two.

The outside cover of outer flame retardant coating 2 is equipped with wearing layer 1, and wearing layer 1 has nylon to weave and forms for avoid outer flame retardant coating 2 to drop.

Be provided with waterproof layer 3 between outer flame retardant coating 2 and the insulating layer 4, waterproof layer 3 comprises waterproof film for avoid moisture to get into insulating layer 4, get into moisture in the insulating layer 4 and can lead to its thermal-insulated effect variation.

The inboard of inner jacket layer 6 is provided with

position sleeve

7, and 7 cards of position sleeve are in the outside of cable core 8, through 6 card main cable cores 8 of inner jacket layer, can with avoid a plurality of cable cores 8 in the inner jacket layer 6 to intertwine each other, and the quantity of the inboard cable core 8 of inner jacket layer is three at least, tangent between the cable core 8, through the mutual extrusion between the cable core 8, can with avoid the filling layer to extrude cable core 8, and then can with the weight that reduces the cable.

The cable core 8 includes metal conductor 81, and metal conductor 81's outside cover is equipped with shielding layer 82, and shielding layer 82's outside cover is equipped with insulating layer 83, sets up shielding layer 82 in metal conductor 81's outside, and when the damage appeared in shielding layer 82 of a cable core 8, shielding layer 82 on the other cable cores 8 still can normally shield the interference.

The working principle is as follows: when wearing layer 1 burns, outer flame retardant coating 2 can be fine prevent fires, simultaneously outer flame retardant coating 2 inside insulating layer 4 can with reduce thermal transmission, and then avoid interior flame retardant coating 5 and cable core 8's high temperature, when outer flame retardant coating 2 was destroyed by high temperature, interior flame retardant coating 5 still can continue to prevent fires, and then delay the intensity of a fire and burn to cable core 8.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, it will be obvious to those skilled in the art that the present invention is not limited to the details of the foregoing exemplary embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not to be construed as limiting the claim concerned.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a strenghthened type fireproof cable is used in fire control, includes cable core (8), its characterized in that: the outer side cover of cable core (8) is equipped with inner jacket layer (6), the outer side cover of inner jacket layer (6) is equipped with interior flame retardant coating (5), the outer side cover of interior flame retardant coating (5) is equipped with insulating layer (4), the outer side cover of insulating layer (4) is equipped with outer flame retardant coating (2), insulating layer (4) are including dull and stereotyped layer (41) and honeycomb layer (42), honeycomb holes have been seted up on the body of honeycomb layer (42), dull and stereotyped layer (41) and honeycomb layer (42) alternate arrangement, the inlayer and outmost being dull and stereotyped layer (41) of insulating layer (4), the thickness of honeycomb layer (42) is two times of dull and stereotyped layer (41) thickness and more than, honeycomb layer (42) quantity is two layers at least in insulating layer (4).

2. The reinforced fire protection cable for fire protection of claim 1, wherein: the outer side of the outer fireproof layer (2) is sleeved with a wear-resistant layer (1).

3. The reinforced fire-protection cable for fire protection of claim 1, wherein: and a waterproof layer (3) is arranged between the outer fireproof layer (2) and the heat insulation layer (4).

4. The reinforced fire protection cable for fire protection of claim 1, wherein: the inner side of the inner sleeve layer (6) is provided with a positioning sleeve (7), the positioning sleeve (7) is clamped on the outer side of the cable core (8), the number of the cable cores (8) on the inner side of the inner sleeve layer (6) is at least three, and the cable cores (8) are tangent.

5. The reinforced fire protection cable for fire protection of claim 1, wherein: the cable core (8) comprises a metal conductor (81), a shielding layer (82) is sleeved on the outer side of the metal conductor (81), and an insulating layer (83) is sleeved on the outer side of the shielding layer (82).