CN218886863U

CN218886863U - Flame-retardant composite cable

Info

Publication number: CN218886863U
Application number: CN202222988942.8U
Authority: CN
Inventors: 高原
Original assignee: Shenyang Huiang Cable Manufacturing Co ltd
Current assignee: Shenyang Huiang Cable Manufacturing Co ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-04-18
Anticipated expiration: 2032-11-10

Abstract

The utility model provides a fire-retardant compound cable relates to cable technical field, including the outer jacket, the internal surface of outer jacket is provided with the filling layer, the internal surface center fixedly connected with glass fiber resistance to act as go-between of filling layer. The utility model discloses in, through the setting of filling layer, reach and provide bearing structure's effect for the space between the inside shielding layer conductor of cable jacket and the anti-act wire of glass fiber, setting through anti-act wire of glass fiber and metallic braid, reach the effect that has increased wire and cable's pull resistance, setting through the shielding layer, can reach the effect of shielding interference, through setting up the anti-act wire of glass fiber, the metallic braid, the setting of shielding layer and conductor, make when cable jacket receives the destruction of the various factors in the external environment, can provide effectual protection for cable jacket, effectively prevented cable jacket from taking place cracked condition, the difficult cracked purpose of protective cable jacket has been reached.

Description

Flame-retardant composite cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to a fire-retardant compound cable.

Background

The photoelectric composite cable is suitable for being used as a transmission line in a broadband access network system, is a novel access mode, integrates optical fibers and transmission copper wires, and can solve the problems of broadband access, equipment power consumption and signal transmission. The transmission of optical signal, signal of telecommunication and electric power is realized through a cable, can reduce the cost of laying greatly, because the cable adopts composite construction, therefore a cable accomplishes multiple functions, has fine price/performance ratio.

In the prior art, for example: chinese patent CN212847824U discloses a compound power cable, which comprises a wire, the outer wall of wire is equipped with fire-retardant layer, fire-retardant layer includes titanium cladding material, aramid fiber layer and asbestos cloth, the outer wall of wire is located to the asbestos cloth, the outer wall of asbestos cloth is equipped with aramid fiber layer, titanium cladding material has been plated to aramid fiber layer's outer wall. According to the composite power cable, the titanium coating, the aramid fiber layer and the asbestos mesh are adopted, so that the composite power cable has good flame retardant property; according to the composite power cable, the PE thin layer, the hard PU plastic layer and the water blocking yarns are used, so that the composite power cable has good water blocking performance, and safety accidents are avoided.

In the patent, although through titanium cladding, aramid fiber layer and asbestos gauge, make this compound power cable have better fire behaviour, but because the cable adopts composite construction, therefore a cable accomplishes multiple functions, have fine price/performance ratio, but the cable core of multiple functions is when compound the use, need consider the problem that probably produces the interference between each other between each cable core, and in some dangerous job sites, wire and cable is very easily dragged in the work progress, lead to the rupture of inside cable core, not only influence work efficiency, and this is unfavorable to wire and cable's safety and stability work, for this reason, propose a fire-retardant compound cable to improve and optimize.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the cable core that exists among the prior art need avoid disturbing and the cable is pulled easily when the construction and tear when compound is used, and the fire-retardant compound cable that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a fire-retardant compound cable, includes the outer jacket, the internal surface of outer jacket is provided with the filling layer, the anti stay wire of fixedly connected with glass fiber is located at the internal surface center of filling layer, a plurality of metal braid of internal surface fixedly connected with of filling layer, it is a plurality of the internal surface of metal braid all wraps up the shielding layer, and is a plurality of the internal surface of shielding layer all wraps up there is the conductor, and is a plurality of the internal surface of conductor all is provided with a plurality of cable cores.

Preferably, the outer surface of the outer protective layer is fixedly connected with an anti-abrasion layer, the outer surfaces of the conductors are fixedly connected with inner insulating layers, and the outer surfaces of the inner insulating layers are fixedly connected with the inner surface of the shielding layer.

Preferably, the outer jacket comprises a flame-retardant layer, and the flame-retardant layer is a low-smoke halogen-free flame-retardant layer.

Preferably, the flame-retardant layer comprises an outer insulating layer, the outer insulating layer is an ethylene propylene rubber insulating layer, and the inner insulating layer is a polyethylene material.

Preferably, the outer insulating layer comprises a steel tape armor layer, and a hard PU plastic layer is arranged on the inner surface of the steel tape armor layer.

Preferably, the inner surface of the hard PU plastic layer is provided with an aramid woven layer.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. the utility model discloses in, through the setting of filling layer, reach and provide bearing structure's effect for the space between the inside shielding layer conductor of cable jacket and the anti-act wire of glass fiber, setting through anti-act wire of glass fiber and metallic braid, reach the effect that has increased wire and cable's pull resistance, setting through the shielding layer, can reach the effect of shielding interference, through setting up the anti-act wire of glass fiber, the metallic braid, the setting of shielding layer and conductor, make when cable jacket receives the destruction of the various factors in the external environment, can provide effectual protection for cable jacket, effectively prevented cable jacket from taking place cracked condition, the difficult cracked purpose of protective cable jacket has been reached.

2. The utility model discloses in, through the setting of abrasionproof layer, can reach the effect of avoiding the direct contact of two adjacent cables, through the setting of internal insulation layer and external insulation layer, can reach the effect of taking place the electric shock when avoiding cable shell to break, through the setting on fire-retardant layer, reach the effect of stretching and protecting the cable core that blocks the intensity of a fire, good insulating nature and ageing resistance performance that have through the aramid fiber weaving layer, reach and avoid the cable core to take place ageing effect, through the setting of steel band armor, reach the effect of protection and support cable core.

Drawings

Fig. 1 is a schematic perspective view of a flame retardant composite cable according to the present invention;

fig. 2 is a schematic view of a shielding layer structure of a flame-retardant composite cable according to the present invention;

fig. 3 is a schematic front sectional view of the flame-retardant composite cable of the present invention;

fig. 4 is the utility model provides an outer jacket structure sketch map of fire-retardant compound cable.

Illustration of the drawings: 1. an outer jacket; 2. an anti-wear layer; 3. a metal braid layer; 4. a shielding layer; 5. a conductor; 6. a cable core; 7. a filling layer; 8. a glass fiber tensile strand; 9. an inner insulating layer; 101. a flame retardant layer; 102. an outer insulating layer; 103. a steel tape armor layer; 104. a hard PU plastic layer; 105. and (4) aramid woven layers.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1-4, the utility model provides a fire-retardant compound cable, including outer jacket 1, outer jacket 1's internal surface is provided with filling layer 7, and the internal surface center fixedly connected with glass fiber tensile strand 8 of filling layer 7, a plurality of metal braid 3 of internal surface fixedly connected with of filling layer 7, the internal surface of a plurality of metal braid 3 has all wrapped up shielding layer 4, and the internal surface of a plurality of shielding layers 4 has all wrapped up conductor 5, and the internal surface of a plurality of conductors 5 all is provided with a plurality of cable cores 6.

The effect that its whole embodiment 1 reached is, through the setting of filling layer 7, reach and provide bearing structure for the shielding layer 4 conductor 5 and the space between the glass fiber anti-act as go-between 8 inside the cable casing, contact each other has been avoided, through the setting of glass fiber anti-act as go-between 8, reach the pull resistance that has increased electric wire and cable, when receiving the pulling force, can weaken the pulling force that cable core 6 received, thereby reduced the condition that the cable receives the pulling force fracture, reached the difficult mesh of receiving the pulling force disconnection of protection cable core 6, through the setting of metallic braid 3, also increased the tensile strength of cable when using, for cable core 6 shares the pulling force effect that receives, reduced the cable because of the circumstances that the pulling force makes cable core 6 break off, through the setting of shielding layer 4, shielding layer 4 is the tinned copper wire braided wire shielding layer, make can be when the cable core 6 of multiple functions is in the composite use, can reach the effect of shielding interference, thereby realize the fine signal transmission to the cable, the effect of power transmission.

Embodiment 2, as shown in fig. 1 to 4, the outer surface of the outer sheath 1 is fixedly connected with the anti-wear layer 2, the outer surface of each of the plurality of conductors 5 is fixedly connected with the inner insulating layer 9, the outer surface of the inner insulating layer 9 is fixedly connected with the inner surface of the shielding layer 4, the outer sheath 1 comprises the flame retardant layer 101, the flame retardant layer 101 is a low-smoke halogen-free flame retardant layer, the flame retardant layer 101 comprises an outer insulating layer 102, the outer insulating layer 102 is an ethylene propylene rubber insulating layer, the inner insulating layer 9 is a polyethylene material, the outer insulating layer 102 comprises a steel strip armor layer 103, the inner surface of the steel strip armor layer 103 is provided with a hard PU plastic layer 104, and the inner surface of the hard PU plastic layer 104 is provided with an aramid woven layer 105.

The effect that its whole embodiment 2 reaches does, through the setting of abrasionproof layer 2, can reach the effect of avoiding the direct contact of two adjacent cables, thereby reduce the friction of during operation, through the setting of internal insulation layer 9 and external insulation layer 102, can reach the effect of taking place the electric shock when avoiding the cable jacket to break, through the setting of fire-retardant layer 101, fire-retardant layer 101 is low smoke and zero halogen fire-retardant layer, appear the short circuit and when taking place the naked light in cable wrong wiring, at first utilize fire-retardant layer 101 can block stretching of intensity of a fire, thereby avoid causing the damage to other equipment, reduce danger and reduce the loss, can also receive when the extrusion at cable transport and the in-process of assembly, effectively protect inside cable core 6 through the cushioning effect of fire-retardant layer 101, and under the supporting role at packing layer 7 and metal armor 3 and glass fiber anti-pulling wire 8, avoid the deformation range too big, good cable core and ageing resistance that have through aramid fiber braid 105, the condition that the long-time use takes place the ageing, make the cable more durable, through the setting of steel tape armor layer 103, install the metal armor layer in addition, with the protection of one deck inside, avoid the cable core 6 to receive the collision when the transportation, receive the damage.

The conductor 5 is a stranded copper conductor, the shielding layer 4 is formed by weaving tinned copper wires, the flame-retardant layer 101 is a low-smoke halogen-free flame-retardant layer, the outer insulating layer 102 is an ethylene propylene rubber insulating layer, and the inner insulating layer 9 is made of polyethylene materials.

The working principle is as follows: when the cable catches fire, can block stretching of the intensity of a fire through fire-retardant layer 101, when the cable jacket breaks, can prevent the danger of electrocution through outer insulating layer 102 and inner insulating layer 9, need violently pull the cable when during operation or installation cable, through steel band armor 103, aramid woven layer 105, glass fiber tensile resistance 8 and metal braid 3 have increased wire and cable's pull resistance, protection cable core 6 is difficult for receiving the pulling force disconnection, when the cable contacts water, can reach waterproof effect through stereoplasm PU plastic layer 104, when needs use many cables, can make two adjacent cables avoid direct contact through abrasionproof layer 2, thereby reduce the friction of during operation, cable core 6 at multiple functions is when the combined use, shield through shielding layer 4 and disturb.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a fire-retardant compound cable, includes outer jacket (1), its characterized in that: the internal surface of outer jacket (1) is provided with filling layer (7), fixedly connected with glass fiber resistance to act as go-between (8) is located at the internal surface center of filling layer (7), a plurality of metal braid (3) of internal surface fixedly connected with of filling layer (7), it is a plurality of the internal surface of metal braid (3) all wraps up shielding layer (4), and is a plurality of the internal surface of shielding layer (4) all wraps up conductor (5), and is a plurality of the internal surface of conductor (5) all is provided with a plurality of cable cores (6).

2. The flame retardant composite cable according to claim 1, wherein: the outer fixed surface of outer jacket (1) is connected with abrasionproof layer (2), and is a plurality of the equal fixedly connected with inner insulating layer (9) of surface of conductor (5), and the fixed surface of the surface of inner insulating layer (9) and shielding layer (4) is connected.

3. A flame retardant composite cable according to claim 2, wherein: the outer jacket (1) comprises a flame-retardant layer (101), and the flame-retardant layer (101) is a low-smoke halogen-free flame-retardant layer.

4. The flame-retardant composite cable according to claim 3, wherein: the flame-retardant layer (101) comprises an outer insulating layer (102), the outer insulating layer (102) is an ethylene propylene rubber insulating layer, and the inner insulating layer (9) is made of polyethylene material.

5. The flame-retardant composite cable according to claim 4, wherein: the outer insulating layer (102) comprises a steel tape armor layer (103), and a hard PU plastic layer (104) is arranged on the inner surface of the steel tape armor layer (103).

6. The flame retardant composite cable according to claim 5, wherein: the inner surface of the hard PU plastic layer (104) is provided with an aramid woven layer (105).