CN206685193U

CN206685193U - A kind of safe coaxial multi-barrel cable

Info

Publication number: CN206685193U
Application number: CN201720457262.XU
Authority: CN
Inventors: 张佳勇
Original assignee: WUXI JINZHENG CABLE Co Ltd
Current assignee: WUXI JINZHENG CABLE Co Ltd
Priority date: 2017-04-27
Filing date: 2017-04-27
Publication date: 2017-11-28
Anticipated expiration: 2027-04-27

Abstract

The utility model discloses a kind of safe coaxial multi-barrel cable; including back-up coat and cable inner core; the cable inner core is provided with some groups and wraps up bunchy by nonwoven layer; the outer layer of the nonwoven layer is fixedly connected with one layer of inner sheath; the outer layer of the inner sheath is fixedly connected with one layer of back-up coat; oversheath is provided with the outside of the back-up coat, the cable inner core includes wire and the protective layer being wrapped in outside wire.The utility model passes through waterproof layer and fireprotection layer, improve the overall fire prevention of cable and water resistance, improve the scope of application of cable, pass through back-up coat, the drawing intensity of cable can be improved, is convenient for the erecting cable construction of long range, and each individually cable inner core is electromagnetically shielded by copper strip shielding layer, stability during transmission of electricity is improved, reduces the generation of failure.

Description

A kind of safe coaxial multi-barrel cable

Technical field

The utility model belongs to cable unit technical field, and in particular to a kind of safe coaxial multi-barrel cable.

Background technology

Cable is typically by several or the cable of similar rope that several groups of wires [every group at least two] are twisted, every group Mutually insulated between wire, and be often twisted into around a center, whole outside is surrounded by the coating of high-insulation.It is erected at more In the air or mounted in underground, the bottom, for telecommunication or power Transmission.Cable by its purposes can be divided into power cable, communication cable and Control cable etc..It is that insulation distance is small between line compared with overhead line, the advantages of cable, space is small, and underground laying is without accounting for Ground space above, is not influenceed by ambient contamination, and power transmission reliability is high, small to personal safety and surrounding environment interference.

Generally no longer moved after the completion of cable construction, therefore, it is necessary to cable possesses higher waterproof and fire retardancy, And anti-drawing ability, to tackle the unfavorable conditions that cable runs into construction environment.

Utility model content

The purpose of this utility model is to provide a kind of safe coaxial multi-barrel cable, to solve above-mentioned background technology The problem of middle proposition.

To achieve the above object, the utility model provides following technical scheme：A kind of safe coaxial multi-barrel cable, Including back-up coat and cable inner core, the cable inner core is provided with some groups and wraps up bunchy, the nonwoven by nonwoven layer The outer layer of layer of cloth is fixedly connected with one layer of inner sheath, and the outer layer of the inner sheath is fixedly connected with one layer of back-up coat, the reinforcing The outside of layer is provided with oversheath, and the cable inner core includes wire and the protective layer being wrapped in outside wire.

Preferably, the cable inner core is at least provided with 2 groups, and the cable inner core inside nonwoven layer is provided with and filled out Layer is filled, the packed layer is made up of glass fibre packing material.

Preferably, one layer of waterproof layer and fireprotection layer are additionally provided between the back-up coat and oversheath.

Preferably, the back-up coat is made up of steel wire by braiding.

Preferably, a layer conductor screen layer, the conductor shielding are fixedly connected with the wire outer wall of the cable inner core The outside of layer is fixedly connected on insulating barrier, is fixedly connected on copper strip shielding layer on the outside of the insulating barrier, and copper strip shielding layer Outside is fixedly connected with protective layer.

Preferably, the insulating barrier is made up of silicon rubber, and thickness is 0.3-0.5mm..

Technique effect of the present utility model and advantage：The safe coaxial multi-barrel cable, pass through waterproof layer and fire prevention Layer, the overall fire prevention of cable and water resistance are improved, the scope of application of cable is improved, by back-up coat, electricity can be improved The drawing intensity of cable, the erecting cable construction of long range is convenient for, and each individually cable inner core passes through copper strip shielding Layer is electromagnetically shielded, and is improved stability during transmission of electricity, is reduced the generation of failure.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model；

Fig. 2 is A-A cross-sectional views of the present utility model；

Fig. 3 is cable model core arrangement schematic diagram of the present utility model.

In figure：1 oversheath, 2 waterproof layers, 3 back-up coats, 4 inner sheaths, 5 nonwoven layers, 6 packed layers, 7 cable inner cores, 8 are led Line, 9 conductor shields, 10 insulating barriers, 11 copper strip shielding layers, 12 protective layers, 13 fireprotection layers.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

The utility model provides a kind of safe coaxial multi-barrel cable as Figure 1-3, including the He of back-up coat 3 Cable inner core 7, the cable inner core 7 are provided with some groups and wrap up bunchy by nonwoven layer 5, the nonwoven layer 5 it is outer Layer is fixedly connected with one layer of inner sheath 4, and the outer layer of the inner sheath 4 is fixedly connected with one layer of back-up coat 3, the back-up coat 3 Outside is provided with oversheath 1, and the cable inner core 7 includes wire 8 and the protective layer 12 being wrapped in outside wire 8.

Further, the cable inner core 7 is at least provided with 2 groups, and is set around the cable inner core 7 inside nonwoven layer 5 Packed layer 6 is equipped with, the packed layer 6 is made up of glass fibre packing material.

Further, one layer of waterproof layer 2 and fireprotection layer 13 are additionally provided between the back-up coat 3 and oversheath 1.

Further, the back-up coat 3 is made up of steel wire by braiding.

Further, a layer conductor screen layer 9, the wire are fixedly connected with the outer wall of wire 8 of the cable inner core 7 The outside of screen layer 9 is fixedly connected on insulating barrier 10, and the outside of the insulating barrier 10 is fixedly connected on copper strip shielding layer 11, and copper Outside with screen layer 11 is fixedly connected with protective layer 12.

Further, the insulating barrier 10 is made up of silicon rubber, and thickness is 0.3-0.5mm.

Specifically, in use, by waterproof layer 2 and fireprotection layer 13, the overall fire prevention of cable and water resistance are improved, is carried The high scope of application of cable, by back-up coat 3, the drawing intensity of cable can be improved, is convenient for the cable trough of long range Facility work, and each individually cable inner core 7 is electromagnetically shielded by copper strip shielding layer 11, improves stabilization during transmission of electricity Property, reduce the generation of failure.

Finally it should be noted that：Preferred embodiment of the present utility model is the foregoing is only, is not limited to this Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art For, it can still modify to the technical scheme described in foregoing embodiments, or to which part technical characteristic Progress equivalent substitution, all within the spirit and principles of the utility model, any modification, equivalent substitution and improvements made etc., It should be included within the scope of protection of the utility model.

Claims

1. a kind of safe coaxial multi-barrel cable, including back-up coat（3）With cable inner core（7）, it is characterised in that：The electricity Cable inner core（7）It is provided with some groups and passes through nonwoven layer（5）Wrap up bunchy, the nonwoven layer（5）Outer layer be fixedly connected There is one layer of inner sheath（4）, the inner sheath（4）Outer layer be fixedly connected with one layer of back-up coat（3）, the back-up coat（3）It is outer Side is provided with oversheath（1）, the cable inner core（7）Including wire（8）And it is wrapped in wire（8）Outside protective layer （12）.

A kind of 2. safe coaxial multi-barrel cable according to claim 1, it is characterised in that：The cable inner core （7）At least provided with 2 groups, and nonwoven layer（5）Internal cable inner core（7）Surrounding is provided with packed layer（6）, the packed layer （6）It is made up of glass fibre packing material.

A kind of 3. safe coaxial multi-barrel cable according to claim 1, it is characterised in that：The back-up coat（3） With oversheath（1）Between be additionally provided with one layer of waterproof layer（2）And fireprotection layer（13）.

A kind of 4. safe coaxial multi-barrel cable according to claim 1, it is characterised in that：The back-up coat（3） It is made up of steel wire by braiding.

A kind of 5. safe coaxial multi-barrel cable according to claim 1, it is characterised in that：The cable inner core （7）Wire（8）A layer conductor screen layer is fixedly connected with outer wall（9）, the conductor shield（9）Outside be fixedly connected In insulating barrier（10）, the insulating barrier（10）Outside be fixedly connected on copper strip shielding layer（11）, and copper strip shielding layer（11）'s Outside and protective layer（12）It is fixedly connected.

A kind of 6. safe coaxial multi-barrel cable according to claim 5, it is characterised in that：The insulating barrier（10） It is made up of silicon rubber, and thickness is 0.3-0.5mm.