CN212434300U

CN212434300U - Low-smoke halogen-free flame-retardant fire-resistant cable

Info

Publication number: CN212434300U
Application number: CN202021598735.6U
Authority: CN
Inventors: 董新安
Original assignee: Jiangsu Zhongjing Cable Technology Co ltd
Current assignee: Jiangsu Zhongjing Cable Technology Co ltd
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2021-01-29
Anticipated expiration: 2030-08-05

Abstract

The utility model discloses a low-smoke halogen-free flame-retardant fire-resistant cable, which comprises a cable core, a protective cover and a first snap ring which are arranged at the two ends of the outer side wall of the cable core, wherein a plurality of the outer side wall of the cable core is provided with a semi-conductive water-blocking tape, a plurality of the outer side wall of the semi-conductive water-blocking tape is provided with an insulating layer, a plurality of the outer side wall of the cable core is jointly sleeved with a waterproof layer, a fireproof filler is filled between the inner wall of the waterproof layer and a plurality of cable cores, the outer side wall of the waterproof layer is provided with a flame-retardant layer, the outer side wall of the flame-retardant layer is attached to the inner wall of the protective cover, thus halogen-containing gas can not be released under the condition of combustion, the smoke concentration is low, the safety of the, therefore, the cable is convenient to install and detach by workers, and the cable is convenient to overhaul and replace.

Description

Low-smoke halogen-free flame-retardant fire-resistant cable

Technical Field

The utility model relates to the field of cables, in particular to fire-retardant fire resisting cable of low smoke and zero halogen.

Background

A cable is an electric energy or signal transmission device, generally consisting of several or several groups of conductors, made of one or several mutually insulated conductors and an outer insulating protective layer, for transmitting electric power or information from one place to another, generally a rope-like cable twisted by several or several groups of conductors (at least two in each group), each group of conductors being mutually insulated and usually twisted around a center, the whole being covered with a highly insulating covering, the cable being characterized by internal current conduction and external insulation.

Along with the development of society, the importance of cable is more and more important, also more and more to the demand of cable, nevertheless because incessant use, the probability that the accident appears is also bigger and bigger, when producing the conflagration, can release a large amount of dense cigarette and haloid acid gas during the cable burning, haloid acid gas is corrosive hazard to surrounding electrical equipment, cause harm to surrounding electrical equipment and rescue personnel during the cable burning, be unfavorable for the rescue work of putting out a fire, the installation of its cable is comparatively troublesome, be unfavorable for overhauing and changing the cable.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a low-smoke halogen-free flame-retardant fire-resistant cable, which can effectively solve the problems of the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a fire-retardant fire resisting cable of low smoke and zero halogen, includes the cable core and sets up lag and first snap ring at cable core lateral wall both ends, a plurality of the lateral wall of cable core is provided with semiconduction water-blocking tape, a plurality of the lateral wall of semiconduction water-blocking tape is provided with the insulating layer, a plurality of the waterproof layer has been cup jointed jointly to the lateral wall of cable core, it has the fire prevention filler to fill between the inner wall of waterproof layer and the a plurality of cable core, the lateral wall of waterproof layer is provided with fire-retardant layer, the lateral wall on fire-retardant.

Preferably, the outer surface of the protective sleeve is coated with a hydrophobic layer.

Preferably, the lower surface of the first clamping ring is attached to the second clamping ring, a first bolt is connected between the first clamping ring and the second clamping ring in a threaded mode, a fixing plate is fixedly connected to the lower surface of the second clamping ring, and a second bolt is connected to the upper surface of the fixing plate in a threaded mode.

Preferably, the flame-retardant layer is made of an inorganic nano composite material, and the waterproof layer is a waterproof coiled material.

Preferably, the fireproof filler is composed of a phenolic resin material.

Preferably, the hydrophobic layer material is PTFE.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) through setting up fire-retardant layer, waterproof layer and insulating layer to can not release halogenous gas under the condition of burning, smog concentration is low, improves the security of cable, and is provided with the hydrophobic layer, can avoid the rainy day rainwater to remain outside the cable, then improves the waterproof nature of cable, and the electric wire can be kept apart to the insulating layer prevents people to electrocute the injury.

(2) With first snap ring and second snap ring joint at the lateral wall of lag, then twist first bolt, then rethread second bolt is fixed the fixed plate in suitable position to the staff of being convenient for installs and dismantles the cable, and the convenience is overhauld and is changed the cable.

Drawings

Fig. 1 is a schematic view of the overall structure of a low-smoke halogen-free flame-retardant fire-resistant cable of the present invention;

FIG. 2 is a schematic view of the internal structure of the protective cover of the low-smoke halogen-free flame-retardant fire-resistant cable of the present invention;

fig. 3 is the utility model relates to a fire-retardant fire resisting cable's of low smoke and zero halogen hydrophobic layer.

In the figure: 1. a protective sleeve; 2. a first snap ring; 3. a second snap ring; 4. a fixing plate; 5. a first bolt; 6. a second bolt; 7. a flame retardant layer; 8. a waterproof layer; 9. a fire-resistant filler; 10. a cable core; 11. an insulating layer; 12. a semiconductive water-blocking tape; 13. a hydrophobic layer.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" 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 simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-3, a fire-retardant fire resisting cable of low smoke and zero halogen, including cable core 10 and lag 1 and the first snap ring 2 of setting at cable core 10 lateral wall both ends, the lateral wall of a plurality of cable core 10 is provided with semi-conductive waterproofing area 12, the lateral wall of a plurality of semi-conductive waterproofing area 12 is provided with insulating layer 11, the waterproof layer 8 has been cup jointed jointly to the lateral wall of a plurality of cable core 10, it has fire-proof filler 9 to fill between waterproof layer 8's inner wall and a plurality of cable core 10, waterproof layer 8's lateral wall is provided with fire-retardant layer 7, fire-retardant layer 7's lateral wall and lag 1's inner wall are laminated mutually, do not release halogenous gas.

The outer surface of the protective sleeve 1 is coated with a hydrophobic layer 13, which can reduce water remaining in the cable in rainy days.

The lower surface of first snap ring 2 laminates with second snap ring 3 mutually, and threaded connection has first bolt 5 between first snap ring 2 and the second snap ring 3, and the lower fixed surface of second snap ring 3 is connected with fixed plate 4, and the upper surface threaded connection of fixed plate 4 has second bolt 6, is convenient for install and dismantle the cable.

The flame-retardant layer 7 is made of an inorganic nano composite material, the performance of the flame-retardant layer is greatly superior to that of the traditional composite material, the flame-retardant layer has high heat resistance, high elastic modulus, high strength and good barrier property, and the waterproof layer 8 is a waterproof coiled material.

The fireproof filler 9 is made of phenolic resin materials, and has low smoke generation, high temperature resistance and good heat-resistant stability.

The hydrophobic layer 13 is made of PTFE, and is white wax, semitransparent, heat-resistant and cold-resistant.

It should be noted that, the utility model relates to a fire-retardant fire resisting cable of low smoke and zero halogen, the staff examines the cable first, then joint first snap ring 2 and second snap ring 3 at the lateral wall of lag 1, then twist first bolt 5, then fix fixed plate 4 in suitable position with second bolt 6, when the cable damages and needs to repair or change, unscrew first bolt 5 and second bolt 6, then the staff repairs or changes it, then install first bolt 5 and second bolt 6 again can, set up fire-retardant layer 7, waterproof layer 8 and insulating layer 11, thus can be under the condition of burning, do not release halogenous gas, smog concentration is low, improve the security of cable, and be provided with hydrophobic layer 13, can avoid rainy day rainwater to remain outside the cable, then improve the waterproof nature of cable, the insulating layer 11 can isolate the electric wire to prevent people from being injured by electric shock, and the fireproof filler 9 can further prevent fire.

The basic principles and the main features of the invention and the advantages of the 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

1. The utility model provides a fire-retardant fire resisting cable of low smoke and zero halogen, includes cable core (10) and sets up lag (1) and first snap ring (2) at cable core (10) lateral wall both ends, its characterized in that: the cable comprises a plurality of cable cores (10), and is characterized in that a semi-conductive water-blocking tape (12) is arranged on the outer side wall of each cable core (10), an insulating layer (11) is arranged on the outer side wall of each semi-conductive water-blocking tape (12), a waterproof layer (8) is jointly sleeved on the outer side wall of each cable core (10), fireproof fillers (9) are filled between the inner wall of each waterproof layer (8) and each cable core (10), a flame-retardant layer (7) is arranged on the outer side wall of each waterproof layer (8), and the outer side wall of each flame-retardant layer (7) is attached to the.

2. The low-smoke halogen-free flame-retardant fire-resistant cable according to claim 1, characterized in that: the outer surface of the protective sleeve (1) is coated with a hydrophobic layer (13).

3. The low-smoke halogen-free flame-retardant fire-resistant cable according to claim 1, characterized in that: the lower surface of first snap ring (2) laminates with second snap ring (3) mutually, and threaded connection has first bolt (5) between first snap ring (2) and second snap ring (3), and the lower fixed surface of second snap ring (3) is connected with fixed plate (4), and the upper surface threaded connection of fixed plate (4) has second bolt (6).

4. The low-smoke halogen-free flame-retardant fire-resistant cable according to claim 1, characterized in that: the flame-retardant layer (7) is made of an inorganic nano composite material, and the waterproof layer (8) is a waterproof coiled material.

5. The low-smoke halogen-free flame-retardant fire-resistant cable according to claim 1, characterized in that: the fireproof filler (9) is made of phenolic resin material.

6. The low-smoke halogen-free flame-retardant fire-resistant cable according to claim 2, characterized in that: the hydrophobic layer (13) is made of PTFE.