CN216671272U - Fireproof isolated special cable with metal protective layer - Google Patents

Abstract

The utility model discloses a fireproof isolated special cable with a metal protective layer, which comprises the metal insulating layer, wherein an anti-distortion component is arranged on the inner side of the metal insulating layer, a first protective sleeve is arranged on the inner side of the anti-distortion component, a first filling layer is arranged in the inner cavity of the first protective sleeve, five groups of second protective sleeves are fixedly connected on the inner side wall of the first protective sleeve in an annular array manner, five groups of cable cores are arranged in the inner cavity of the five groups of second protective sleeves, a fixed shaft is arranged at the center of the inner cavity of the first protective sleeve, the metal insulating sleeve, a flame-retardant layer, a heat-insulating layer, a waterproof layer and the anti-distortion component are matched with each other, the fireproof, waterproof and anti-torsion effects of the cable are improved, the service life of the cable is prolonged, the five groups of second protective sleeves can be separately placed and fixed on the multiple groups of cable cores, the first filler adopts halogen-free filling strips, and is matched with the fixed shaft and a connecting plate to ensure the stable structure of the cable, the insulating layer is rubber and complete set, plays insulating effect, avoids the signal interference between the cables, influences the result of use.

Description

Fireproof isolated special cable with metal protective layer

Technical Field

The utility model belongs to the technical field of electric wires and cables, and particularly relates to a fireproof isolated special cable with a metal protective layer.

Background

With the rapid development of society, in industry, agriculture, national defense, scientific research and other various departments of national economy, is applied more and more widely, the application of electric energy greatly improves the labor productivity, improves the labor condition, also improves the physical life and cultural life level of people, in particular to a main line, a fire-fighting line, an escape and rescue system, such as emergency lighting, fire monitoring, an alarm system, an elevator system, a smoke exhaust system, a control line and the like, therefore, the high-efficiency transmission of electric energy is ensured, the safe and reliable electric wire and cable are one of the indispensable necessary conditions, the general cable has poor fireproof, waterproof and anti-torsion effects, the service life is influenced, and a plurality of groups of cables are fixed together, so that signal interference among the cables is easily caused, and the using effect is influenced, so that the fireproof isolation type special cable with the metal protective layer is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fireproof isolated special cable with a metal protective layer, and aims to solve the problems that the cable provided by the background technology is poor in fireproof, waterproof and anti-torsion effects and influences the service life.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a fire prevention isolated form special type cable with metal protection layer, including the metal isolation layer, the inboard of metal isolation layer is equipped with the distortion resistance subassembly, the inboard of distortion resistance subassembly is equipped with first protective sheath, the inner chamber of first protective sheath is equipped with first filling layer, the inside wall of first protective sheath is five groups of second protective sheaths of ring array fixedly connected with, the inner chamber of five groups of second protective sheaths is equipped with five groups of cable inner cores, the inner chamber center department of first protective sheath is equipped with the fixed axle, the lateral wall of fixed axle is five groups of connecting plates of ring array fixedly connected with.

Preferably, one side, which is not connected with the fixed shaft, of the five groups of connecting plates is fixedly connected with the five groups of second protective sleeves, and the first filling layer is located in a gap among the first protective sleeve, the five groups of second protective sleeves, the five groups of connecting plates and the fixed shaft.

Preferably, the anti-distortion component comprises a first asbestos net layer, a second filling layer and a second asbestos net layer, and the first asbestos net layer, the second filling layer and the second asbestos net layer are distributed from outside to inside in sequence.

Preferably, a plurality of groups of anti-torsion hoses are arranged in the second filling layer in an annular array, and anti-torsion springs are fixedly wound on the outer wall of each group of anti-torsion hoses.

Preferably, the first protective sleeve comprises a flame-retardant layer, a heat-insulating layer and a waterproof layer which are sequentially arranged from outside to inside.

Preferably, the second protective sleeve comprises an insulating layer and an anti-oxidation layer which are arranged from outside to inside in sequence.

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

1. the metal isolation sleeve can effectively isolate flame, combustible substances in the cable core cannot be burnt during combustion, the flame-retardant layer is made of low-smoke low-halogen flame-retardant materials, the fireproof and flame-retardant layers are fireproof and flame-retardant, the heat-insulating layer is formed by a plurality of glass fiber tapes, the glass fiber tapes are spirally wound, the heat-insulating effect of the glass fiber tapes is good, the waterproof layer is made of chlorinated polyethylene materials, the oil and water resistance is good, the second filler is filler similar to a rope tape and is matched with the first asbestos mesh layer, the anti-torsion hose, the anti-torsion spring and the second asbestos mesh layer, the flexibility of the cable is good, the fireproof, waterproof and anti-torsion effects of the cable are improved, and the service life of the cable is prolonged;

2. five groups of second protective sheaths can separately place fixedly to multiunit cable inner core, and what first filler adopted is that there is not steamed filling strip, mutually supports with fixed axle and connecting plate, guarantees the stable in structure of cable, and the insulating layer is rubber and complete set, has played insulating utility, avoids the signal interference between the cable, influences the result of use.

Drawings

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

FIG. 2 is a schematic view of an anti-twist assembly according to the present invention;

FIG. 3 is a schematic view of a first protective sheath according to the present invention;

fig. 4 is a schematic structural view of a second protective sleeve of the present invention.

In the figure: the anti-twisting cable comprises a metal isolation sleeve 1, an anti-twisting component 2, a first asbestos screen layer 21, a second asbestos screen layer 22, a second filling layer 23, a torsional hose 24, a torsional spring 25, a first protection sleeve 3, a flame-retardant layer 31, a thermal insulation layer 32, a waterproof layer 33, a first filling layer 4, a second protection sleeve 5, an insulating layer 51, an anti-oxidation layer 52, a cable inner core 6, a fixing shaft 7 and a connecting plate 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a fire prevention isolated form special type cable with metal sheath, includes metal isolation layer 1, its characterized in that: the inboard of metal isolation layer 1 is equipped with antitorque distortion subassembly 2, the inboard of antitorque distortion subassembly 2 is equipped with first protective sheath 3, the inner chamber of first protective sheath 3 is equipped with first filling layer 4, the inside wall of first protective sheath 3 is five groups of second protective sheath 5 of ring array fixedly connected with, the inner chamber of five groups of second protective sheath 5 is equipped with five groups of cable inner cores 6, the inner chamber center department of first protective sheath 3 is equipped with fixed axle 7, the lateral wall of fixed axle 7 is five groups of connecting plate 8 of ring array fixedly connected with.

In this embodiment, referring to fig. 1 and 2, the anti-twisting component 2 includes a first asbestos gauge layer 21, a second filling layer 22, and a second asbestos gauge layer 23, and the first asbestos gauge layer 21, the second filling layer 22, and the second asbestos gauge layer 23 are sequentially distributed from outside to inside, a plurality of sets of anti-twisting hoses 24 are arranged in the second filling layer 22 in an annular array, an anti-twisting spring 25 is fixedly wound on an outer wall of each set of anti-twisting hoses 24, and the second filling 22 is a filler similar to a rope, and is matched with the first asbestos gauge layer 21, the anti-twisting hoses 24, the anti-twisting springs 25, and the second asbestos gauge layer 23, so that flexibility of the cable is improved, and an anti-twisting effect is achieved;

in this embodiment, referring to fig. 3, the first protective sheath 3 includes a flame retardant layer 31, a thermal insulation layer 32 and a waterproof layer 33, which are sequentially arranged from outside to inside, the flame retardant layer 31 is made of a low-smoke low-halogen flame retardant material, and is fireproof and flame retardant, the thermal insulation layer 32 is made of a plurality of glass fiber tapes, and as many as the glass fiber tapes are spirally wound, the glass fiber tapes have a good heat insulation effect, so that the high temperature resistance of the cable is ensured, and the waterproof layer 33 is made of a chlorinated polyethylene material, so that the cable is good in oil resistance and water resistance;

in this embodiment, referring to fig. 4, the second protective sleeve 51 includes an insulating layer 51 and an oxidation-resistant layer 52, which are sequentially disposed from outside to inside, the insulating layer 51 is made of rubber and is a set, which plays an insulating role, and the oxidation-resistant layer 52 isolates oxygen in the air to prevent the cable core 6 from being oxidized.

Example 2

Referring to fig. 1, this embodiment is different from the first embodiment in that: one side that five group's connecting plate 8 is not connected with fixed axle 7 and five group's second protective sheath 5 fixed connection, first filling layer 4 is located first protective sheath 3, five group's second protective sheath 5, in the space between five group's connecting plate 8 and the fixed axle 7, five group's second protective sheath 5 can separately place fixedly to multiunit cable inner core 6, avoid the signal interference between the cable, influence the result of use, what first filler 4 adopted is halogen-free filler strip, mutually support with fixed axle 7 and connecting plate 8, guarantee the stable in structure of cable.

The working principle is as follows: the metal isolation sleeve 1 can effectively isolate flame, combustible substances in a cable core cannot be burnt during combustion, good fireproof isolation capability is achieved, the flame-retardant layer 31 is made of low-smoke low-halogen flame-retardant materials, the fireproof and flame-retardant layers are made of multiple glass fiber tapes, the glass fiber tapes are wound in a spiral mode, the heat insulation effect of the glass fiber tapes is good, the high-temperature resistance of the cable is guaranteed, the waterproof layer 33 is made of chlorinated polyethylene materials, the oil and water resistance is good, the second filler 22 is filler similar to a rope tape and is matched with the first asbestos mesh layer 21, the anti-torsion hose 24, the anti-torsion spring 25 and the second asbestos mesh layer 23, the flexibility of the cable is improved, the anti-torsion effect is achieved, the five groups of second protection sleeves 5 can be placed and fixed on the multiple groups of cable cores 6 in a separated mode, the first filler 4 is halogen-free filler strips and is matched with the fixing shaft 7 and the connecting plate 8, and the structural stability of the cable is guaranteed, insulating layer 51 is rubber and complete set, has played insulating utility, avoids the signal interference between the cable, influences the result of use, keeps apart the oxygen in the air through oxidation barrier 52, avoids cable inner core 6 to take place the oxidation.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a fire prevention isolated form special type cable with metal sheath, includes metal isolation layer (1), its characterized in that: the inboard of metal isolation layer (1) is equipped with antitorque distortion subassembly (2), the inboard of antitorque distortion subassembly (2) is equipped with first protective sheath (3), the inner chamber of first protective sheath (3) is equipped with first filling layer (4), the inside wall of first protective sheath (3) is five groups of second protective sheath (5) of annular array fixedly connected with, and the inner chamber of five groups of second protective sheath (5) is equipped with five groups of cable inner core (6), the inner chamber center department of first protective sheath (3) is equipped with fixed axle (7), the lateral wall of fixed axle (7) is five groups of connecting plate (8) of annular array fixedly connected with.

2. The special cable with metal sheath in fireproof and isolating mode as claimed in claim 1, wherein: one side that five groups of connecting plates (8) do not connect with fixed axle (7) and five groups second protective sheath (5) fixed connection, first filling layer (4) are located in first protective sheath (3), five groups second protective sheath (5), five groups connecting plate (8) and in the space between fixed axle (7).

3. The special cable with metal sheath in fireproof and isolating mode as claimed in claim 1, wherein: the anti-distortion component (2) comprises a first asbestos net layer (21), a second filling layer (22) and a second asbestos net layer (23), and the first asbestos net layer (21), the second filling layer (22) and the second asbestos net layer (23) are distributed in sequence from outside to inside.

4. The special cable with metal sheath in fireproof isolation type of claim 3, wherein: a plurality of groups of anti-torsion hoses (24) are arranged in the second filling layer (22) in an annular array, and anti-torsion springs (25) are fixedly wound on the outer wall of each group of anti-torsion hoses (24).

5. The special fireproof and isolating cable with metal sheath as claimed in claim 1, wherein: the first protective sleeve (3) comprises a flame-retardant layer (31), a heat-insulating layer (32) and a waterproof layer (33) which are sequentially arranged from outside to inside.

6. The special cable with metal sheath in fireproof and isolating mode as claimed in claim 1, wherein: the second protective sleeve (5) comprises an insulating layer (51) and an anti-oxidation layer (52) which are sequentially arranged from outside to inside.

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