CN213459131U - Compression-resistant and fire-resistant communication cable - Google Patents

Abstract

The utility model relates to a resistance to compression fire-resistant type communication cable, which comprises a cable body, the cable body includes restrictive coating, armor, resistance to compression layer, fire-retardant layer, insulating layer, support frame, filling layer and cable core, the restrictive coating cladding is in the outside of armor, the armor sets up in the outside of resistance to compression layer, resistance to compression layer sets up in the outside of fire-retardant layer, fire-retardant layer cladding is in the outside of insulating layer, support frame and cable core set up in the insulating layer inboard, the filling layer sets up between insulating layer and support frame, the cable core is located the filling layer, resistance to compression layer includes the resistance to compression body that establishes along the equidistant ring of armor inner wall, the width at resistance to compression body cross section structure middle part is less than the width at its both ends. The utility model discloses a predominant use provides a fire-resistant, corrosion-resistant, resistant bending property is excellent, and intensity is high, longe-lived, stability is good, still the fixed fire-resistant type communication cable of resistance to compression of easy to assemble.

Description

Compression-resistant and fire-resistant communication cable

Technical Field

The utility model relates to a cable especially relates to a fire-resistant type communication cable of resistance to compression.

Background

With the rapid development of economy and the progress of science and technology, communication technology is developed more and more mature, and great convenience is brought to the life of people. In the field of communications, communication cables are an essential component for transmitting telephone, telegraph, facsimile documents, television, radio programs, data and other electrical signals. However, the conventional communication cable has low reliability, lacks the advantages of pressure resistance, corrosion resistance, tensile strength and the like, cannot withstand the increasingly severe erosion of the external environment, and is long and not easy to fix, so that the wiring is scattered, the cables are easy to shift and stagger, and even are wound together, thereby influencing subsequent maintenance and replacement.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a fire-resistant, corrosion-resistant, resistant bending property is excellent, and intensity is high, longe-lived, stability is good, still the fixed resistance to compression fire-resistant type communication cable of easy to assemble.

In order to solve the above problem, the utility model discloses the technical scheme who adopts as follows:

a compression-resistant and fire-resistant communication cable comprises a cable body, wherein the cable body comprises a sheath layer, an armor layer, a compression-resistant layer, a fire-retardant layer, a thermal insulation layer, a support frame, a filling layer and a cable core, the sheath layer is coated on the outer side of the armor layer, the armor layer is arranged on the outer side of the compression-resistant layer, the compression-resistant layer is arranged on the outer side of the fire-retardant layer, the fire-retardant layer is coated on the outer side of the thermal insulation layer, the support frame and the cable core are arranged on the inner side of the thermal insulation layer, the filling layer is arranged between the thermal insulation layer and the support frame, the cable core is positioned in the filling layer, the support frame comprises a plurality of support sheets which are circumferentially arranged, each support sheet is respectively arranged between two adjacent cable cores, one ends of the plurality of support sheets are mutually fixedly connected, the other ends, the width of the middle part of the cross section structure of the pressure-resistant body is smaller than the width of the two ends of the cross section structure of the pressure-resistant body.

Further, a corrosion-resistant layer is arranged between the pressure-resistant layer and the flame-retardant layer.

Further, a shielding layer is arranged between the flame-retardant layer and the heat insulation layer.

Furthermore, one end of the supporting sheet close to the heat insulation layer extends to two sides to form a supporting portion, and the supporting portion is of an arc structure which is attached to the inner wall of the heat insulation layer.

Further, the compression-resistant body is of an X-shaped structure.

Further, the cable body outside is around being equipped with the locking band, the locking band is including the stiff end that has at least one socket and the bellied buckle end of auto-lock that has a plurality of interval distribution, the size and the buckle end of socket end cooperation, the stiff end tip passes the socket and realizes the auto-lock, the buckle is served and still is equipped with the mounting hole.

Furthermore, a plurality of memory alloy wires which are circumferentially distributed at intervals are arranged in the filling layer.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model has excellent insulating, fire-resistant, corrosion-resistant, bending-resistant and other performances, and simultaneously has the characteristics of high strength, long service life, ultraviolet resistance, good stability and the like; the cable is internally provided with a support frame which is used for supporting and independently placing each cable core, so that the pressure resistance of the cable is improved, and the cable cores are not interfered with each other, thereby improving the stability in the cable; in addition, a locking strap is additionally arranged on the outer side of the cable body, so that the cable is convenient to mount and fix; the cable laying device has the advantages of reasonable overall structure design, excellent performance, convenience and flexibility in use, and is favorable for neatly and orderly cable laying.

Drawings

Fig. 1 is a schematic structural view of a compression-resistant and fire-resistant communication cable according to the present invention;

fig. 2 is a schematic side view of the communication cable of the present invention;

wherein, 1, the cable body; 2. a cable core; 21. an insulating layer; 3. a support frame; 31. a support sheet; 32. a support portion; 4. a thermal insulation layer; 5. a shielding layer; 6. a flame retardant layer; 7. a corrosion-resistant layer; 8. a pressure resistant layer; 9. an armor layer; 10. a sheath layer; 11. a locking strap; 12. a fixed end; 121. mounting holes; 122. a socket; 13. a buckle end; 131. a self-locking protrusion; 14. a filling layer; 15. and memorizing the alloy wires.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

It should be noted that, in the description of the technical solutions of the present invention, some directional words, such as "front", "rear", "upper", "lower", "top", "bottom", "inner", "outer", etc., used for clearly describing the technical features of the present invention are all in terms of the orientation of the drawings of the present invention.

Examples

As shown in fig. 1 and fig. 2, the compression-resistant and fire-resistant communication cable of this embodiment includes a cable body 1, the cable body 1 includes a sheath layer 10, an armor layer 9, a compression-resistant layer 8, a fire-retardant layer 6, a thermal insulation layer 4, a support frame 3, a filling layer 14 and a cable core 2, the sheath layer 10 covers the armor layer 9, the armor layer 9 is disposed on the outer side of the compression-resistant layer 8, the compression-resistant layer 8 is disposed on the outer side of the fire-retardant layer 6, the fire-retardant layer 6 covers the outer side of the thermal insulation layer 4, the support frame 3 and the cable core 2 are disposed on the inner side of the thermal insulation layer 4, the filling layer 14 is disposed between the thermal insulation layer 4 and the support frame 3, the cable core 2 is located in the filling layer 14, the cable core 2; a shielding layer 5 is arranged between the flame-retardant layer 6 and the heat-insulating layer 4. In the embodiment, the sheath layer 10 is made of cold-resistant nitrile rubber, is used for improving the low-temperature resistance of the cable, and has a certain function of preventing the gnawing of rats and ants; the armor layer 9 is formed by weaving steel wires and is used for improving the mechanical property of the cable; the pressure-resistant layer 8 is made of methyl phenyl vinyl silicone elastic rubber, and the flame-retardant layer 6 is made of a nano-scale magnesium hydroxide flame retardant and is used for improving the fire resistance of the cable; the heat insulation layer 4 is made of rock wool materials, so that the influence of external temperature change on the interior of the cable body 1 is reduced; the corrosion-resistant layer 7 is made of polytetrafluoroethylene materials and is used for improving the corrosion resistance of the cable; the shielding layer 5 consists of a tinned copper wire bundle and a high-density fiber yarn bundle, so that electromagnetic interference can be effectively shielded, and the structural strength of the cable is improved; the filling layer 14 is made of water-blocking rubber material; the filling layer 14 is also internally provided with a plurality of memory alloy wires 15 which are circumferentially distributed at intervals, so that the structural strength of the cable body 1 is improved, and the cable body 1 has a shape memory function and good flexibility.

The supporting frame 3 of this embodiment includes a plurality of supporting pieces 31 that circumference set up, and each supporting piece 31 sets up respectively between two adjacent cable cores 2, and each cable core 2 is placed respectively between two supporting pieces 31 promptly, and the cable core 2 is independently placed each other to keep the relatively fixed position, avoid extrusion, wearing and tearing each other. One end of each support sheet 31 is fixedly connected with each other and is supported by each other, the other end of each support sheet 31 abuts against the inner side of the heat insulation layer 4, one end of each support sheet 31 close to the heat insulation layer 4 extends towards two sides to form a support portion 32, and each support portion 32 is of an arc-shaped structure attached to the inner wall of the heat insulation layer 4. Adopt this kind of structure, avoided the people to trample or the external pressure that cable body 1 received when foreign object pressed on the cable directly acts on cable core 2 to avoided causing the damage to cable core 2, through the supporting part 32 that sets up the arc structure, can be with the pressure dispersion that receives, improve the atress ability moreover. Meanwhile, the compression-resistant layer 8 of the embodiment comprises compression-resistant bodies annularly arranged along the inner wall of the armor layer 9 at equal intervals, and the width of the middle part of the cross section structure of each compression-resistant body is smaller than the width of the two ends of the compression-resistant body. Specifically, the resistance to compression body is X type structure, has certain space between the adjacent resistance to compression body, adopts this kind of structure, can disperse pressure, further improves cable body 1's compressive capacity, because resistance to compression layer 8 has the space moreover to can slow down the conduction of outside temperature, improve cable body 1's resistant bending property simultaneously.

The locking band 11 is wound around the outer side of the cable body 1 in this embodiment, the locking band 11 includes a fixed end 12 having at least one insertion opening 122 and a fastening end 13 having a plurality of self-locking protrusions 131 distributed at intervals, the size of the insertion opening 122 matches with the fastening end 13, and the self-locking protrusions 131 are in a zigzag structure; after the end of the fixed end 12 passes through the insertion opening 122, the self-locking protrusion 131 is matched with the insertion opening 122 and is clamped in the position of the insertion opening 122 so as to be incapable of withdrawing, and therefore the self-locking is achieved, and the locking belt 11 is sleeved on the outer side of the cable body 1. The buckle end 13 is further provided with a mounting hole 121, and the locking strap 11 can be fixed by passing through the mounting hole 121 through a bolt or other connecting pieces during mounting, so that the cable body 1 can be fixed. In this embodiment, two sockets 122 are arranged at intervals, and the socket 122 matched with the fixed end 12 can be selected according to the required connection length in use so as to adapt to different connection distances and installation environments. The ring channel along length direction interval distribution is seted up to 1 outer wall of cable body, and the ring channel sets up with cable body 1 is concentric, and the inboard of locking band 11 is seted up with above-mentioned ring channel matched with bar arch, and when locking band 11 winding was on 1 outer wall of cable body, the inboard bar arch of locking band 11 was inserted in the ring channel on 1 outer wall of cable body, realized spacing to locking band 11, prevented that locking band 11 from removing along 1 length direction of cable body. When the cable needs to be fixed, the locking band 11 is wound at a position corresponding to the cable body 1, then the end of the fixed end 12 penetrates through the corresponding insertion opening 122 to form self-locking, at the moment, the inner wall of the locking band 11 is attached to the outer wall of the cable body 1 and is clamped together, and then a bolt penetrates through the mounting hole 121 of the clamping end 13 to be fixed with other equipment or components, so that the position of the cable body 1 is fixed.

The utility model discloses a resistance to compression fire-resistant type communication cable has excellent insulating, fire-resistant, corrosion-resistant, resistant performances such as buckling, still has intensity height, long-lived, anti ultraviolet, stability characteristics such as good simultaneously; the inside of the cable is also provided with a support frame 3 which is used for supporting and independently placing each cable core 2, so that the pressure resistance of the cable is improved, and the cable cores 2 are not interfered with each other, thereby improving the stability inside the cable; in addition, a locking band 11 is additionally arranged on the outer side of the cable body 1, so that the cable is conveniently and fixedly installed. The cable laying device has the advantages of reasonable overall structure design, excellent performance, convenience and flexibility in use, and is favorable for neatly and orderly cable laying.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims (7)

1. The utility model provides a resistance to compression fire-resistant type communication cable which characterized in that: the cable comprises a cable body (1), wherein the cable body (1) comprises a sheath layer (10), an armor layer (9), a compression resistant layer (8), a flame retardant layer (6), a heat insulation layer (4), a support frame (3), a filling layer (14) and a cable core (2), the sheath layer (10) is coated on the outer side of the armor layer (9), the armor layer (9) is arranged on the outer side of the compression resistant layer (8), the compression resistant layer (8) is arranged on the outer side of the flame retardant layer (6), the flame retardant layer (6) is coated on the outer side of the heat insulation layer (4), the support frame (3) and the cable core (2) are arranged on the inner side of the heat insulation layer (4), the filling layer (14) is arranged between the heat insulation layer (4) and the support frame (3), the cable core (2) is arranged in the filling layer (14), the support frame (3) comprises a plurality of support sheets (31) which are circumferentially arranged, and each support sheet (31) is respectively, one ends of the support sheets (31) are fixedly connected with each other, the other ends of the support sheets (31) are abutted against the inner side of the heat insulation layer (4), the pressure-resistant layer (8) comprises pressure-resistant bodies which are annularly arranged at equal intervals along the inner wall of the armor layer (9), and the width of the middle part of the cross section structure of each pressure-resistant body is smaller than the width of the two ends of the pressure-resistant body.

2. The communication cable of claim 1, wherein: and a corrosion-resistant layer (7) is arranged between the pressure-resistant layer (8) and the flame-retardant layer (6).

3. The communication cable of claim 2, wherein: and a shielding layer (5) is arranged between the flame-retardant layer (6) and the heat-insulating layer (4).

4. The communication cable of claim 3, wherein: one end of the support sheet (31) close to the heat insulation layer (4) extends towards two sides to form a support portion (32), and the support portion (32) is of an arc-shaped structure attached to the inner wall of the heat insulation layer (4).

5. The communication cable of claim 1 or 4, wherein: the compression-resistant body is of an X-shaped structure.

6. The communication cable of claim 1, wherein: cable body (1) outside is around being equipped with locking band (11), locking band (11) are including stiff end (12) that have at least one socket (122) and buckle end (13) that have the protruding (131) of auto-lock of a plurality of interval distribution, the size and buckle end (13) of socket (122) cooperate, stiff end (12) tip passes socket (122) and realizes the auto-lock, still be equipped with mounting hole (121) on buckle end (13).

7. The communication cable of claim 5, wherein: and a plurality of memory alloy wires (15) which are circumferentially distributed at intervals are also arranged in the filling layer (14).

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