CN108962480B

CN108962480B - Composite cable

Info

Publication number: CN108962480B
Application number: CN201810601879.3A
Authority: CN
Inventors: 郝飞雄; 高志军; 刘雪娇
Original assignee: Inner Mongolia Wanmeng Cable Co ltd
Current assignee: Inner Mongolia Wanmeng Cable Co ltd
Priority date: 2018-06-12
Filing date: 2018-06-12
Publication date: 2020-04-24
Anticipated expiration: 2038-06-12
Also published as: CN108962480A

Abstract

The invention relates to a composite cable, comprising: the outer peripheral side of the first reinforcing core is uniformly and fixedly connected with a plurality of baffle plates, conductive wire cores are arranged in a cavity formed between every two adjacent baffle plates, the first shielding layer is sleeved on the outer sides of all the baffle plates, the second shielding layer is sleeved on the outer peripheral side of the first shielding layer and forms an annular cavity with the first shielding layer, the plurality of optical fiber cores are uniformly distributed in the annular cavity in an array mode around the axis of the annular cavity, a first filling layer is filled in gaps among the first shielding layer, the second shielding layer and the plurality of optical fiber cores, and the outer sheath of the cable is sleeved on the outer peripheral side of the second shielding layer; the invention realizes the integration of the functions of conductive transmission and signal transmission, reduces the signal interference among various cables, improves the tensile strength and the bending strength of the composite cable, and simultaneously has simple positioning among cable cores in the process of processing the cables.

Description

Composite cable

Technical Field

The invention relates to the field of cables, in particular to a composite cable.

Background

At present, the cable conductor is most used for the connecting wire of transmission and distribution electric energy, it is comparatively extensive in electric field application, the cable is formed by the outer insulating layer cladding winding conductor for the majority, the conductor is provided with shielding layer or armor outward, the optical cable is for being used for realizing the cable of light signal transmission communication signal, optical cable and cable are most separately to be set up among the prior art, and when cable or optical cable are because of the unable discovery in time of the cable rupture position that external strong wind or snow pile up the scheduling factor and lead to and obtain in time overhauls, many conductor groups cause stranded cable core winding difficulty because of the location inaccuracy that the cross-section leads to for circular in the cable simultaneously, lack a integrated level height, the compound cable that the security is good.

Disclosure of Invention

The present invention is directed to a composite cable, which solves at least one of the above problems.

The technical solution for solving the above technical problems is as follows, a composite cable comprising: the cable comprises a first reinforcing core, a plurality of baffles, a plurality of conductive wire cores, a first shielding layer, a plurality of optical fiber wire cores, a second shielding layer, a cable outer sheath and a first filling layer; the utility model provides a cable protection sleeve, including first reinforcement core, the even fixedly connected with of first reinforcement core periphery side has a plurality of baffles, all be provided with the conductive core in the cavity that forms between per two adjacent baffles, first shielding layer cup joints in the outside of all baffles, the second shielding layer cover establish the periphery side of first shielding layer and with first shielding layer between form annular cavity, many fiber core around annular cavity's even array distribution of axis in annular cavity, first shielding layer, the clearance packing between second shielding layer and many fiber core has first filling layer, the cable protection sleeve cup joints the periphery side at the second shielding layer.

The invention has the beneficial effects that: the first reinforcing core is arranged, the overall tensile strength and the bending strength of the composite cable are enhanced, the positioning of the conductive wire cores in the processing process is effectively improved by arranging the plurality of baffles, the phenomenon of inaccurate positioning caused by mutual sliding generated when the conductive wire cores are cylindrical is avoided, the conductive wire cores are limited in a specified space after the baffles are arranged, the thickness of the obtained composite cable is uniform, the processing and manufacturing difficulty is low, the first shielding layer is arranged on the outer sides of all the conductive wire cores, the electromagnetic radiation which can be generated by the conductive wire cores is effectively shielded, the signal interference in the communication signal transmission process of the optical wire cores is avoided, the safety of signal transmission is improved, the composite cable can carry out power transmission through the arrangement of the optical fiber wire cores, and communication transmission of telephones, broadband, cable televisions and the like can be realized, the integration level of cable and optical cable has been improved, construction cost is greatly reduced, construction period is shortened, through setting up the second shielding layer, the effectual shielding effect that realizes external signal, the electromagnetic interference of external signal to inside optic fibre sinle silk and the conductive core of combined type cable production has been avoided, through setting up first filling layer, the periphery side at first shielding layer is fixed with many optic fibre sinle silks to the firm, the inseparable degree that the inside cable of combined type cable combines has been improved simultaneously, through setting up the cable oversheath, the security of the inside sinle silk of combined type cable has been improved, corrosion resistance and ageing resistance.

On the basis of the technical scheme, the invention can be further improved as follows.

Further, the conductor core cross-section is fan-shaped, and the outer cambered surface butt of conductor core is on the inside wall of first shielding layer, and the inner cambered surface butt of conductor core is on first enhancement core, and the both sides plane butt of conductor core is on two adjacent baffles respectively.

The beneficial effect of adopting the further scheme is as follows: through setting up the conductive core into the cross-section and being fan-shaped, improved cable cross-section space utilization, the cable cross-section that the same quantity of conductive core is constituteed is that the cable cross-section that circular shape conductive core constitutes is littleer in cross-sectional shape, has reduced filler's consumption, the effectual clearance of having eliminated between a plurality of circular sinle silks, the conductive core is fan-shaped simultaneously and helps simplifying the manufacturing procedure, the uniformity of cross-sectional size is better everywhere along the cable length is square.

Further, the conductive wire core includes insulating layer and many conductor wires, and many conductor wires strand into fan-shaped wire core body, and the insulating layer cup joints in the fan-shaped wire core body outside, and the surface of insulating layer butt respectively is on the inside wall of first enhancement core, first shielding layer and two adjacent baffles.

The beneficial effect of adopting the further scheme is as follows: through twisting many conductor wires into fan-shaped line core, through the transposition mode, improved the whole bending resistance performance of conductor wire core, realized rationally arranging the conductor wire through the transposition and reduced the cable size, through cup jointing the insulating layer in fan-shaped line core outside, reduced the emergence of the short circuit phenomenon because of contact each other or indirect conduction leads to between the conductor wire core.

Further, the optical fiber core includes: the second reinforcing core, the plurality of optical fibers, the water-blocking layer, the second filling layer, the reinforcing copper wires and the optical fiber outer sheath; the plurality of optical fibers are uniformly arrayed on the outer peripheral side of the second reinforcing core around the axis of the second reinforcing core, the waterproof layer is sleeved on the outer sides of all the optical fibers, a second filling layer is filled in gaps among the waterproof layer, the second reinforcing core and the plurality of optical fibers, the reinforcing copper wire is wound on the outer peripheral side of the waterproof layer, and the optical fiber outer sheath is sleeved on the outer peripheral side of the reinforcing copper wire.

The beneficial effect of adopting the further scheme is as follows: through setting up the second and strengthening the core, the tensile strength and the bending strength of optic fibre sinle silk have been strengthened, many optical fiber inlay establishes in the second filling layer, the damage that the optical fiber looks mutual friction produced has been reduced, through the cover is equipped with the water blocking layer in all optical fiber outside, the waterproof performance of optic fibre sinle silk has been improved, strengthen the copper wire through twining in the water blocking layer outside, the bending strength of the periphery lateral wall of optic fibre sinle silk has been improved, through cup jointing the scattering of optic fibre oversheath and effectively having prevented strengthening the copper wire in strengthening the copper wire outside, the guard action has been played to the optic fibre sinle silk simultaneously.

Further, still include the third shielding layer, the third shielding layer sets up in the annular gap between reinforcing copper wire and the optic fibre oversheath.

The beneficial effect of adopting the further scheme is as follows: through setting up the third shielding layer, strengthened the anti signal interference ability of optic fibre sinle silk, played the effect that electric field shielding and prevent external electromagnetic wave interference simultaneously.

Further, still include the flame retardant coating, the flame retardant coating sets up in the annular clearance between first shielding layer and the cable oversheath.

The beneficial effect of adopting the further scheme is as follows: usually can adopt the direct cladding of multilayer mica tape to form the flame retardant coating in the outside of first shielding layer, through setting up the flame retardant coating, make the cable possess can be able to bear or endure the performance of long-time burning, even apply the high polymer of flame department and be burnt out, also can guarantee the normal operating of circuit, can keep the normal operating of certain time under the condition of flame burning, keep the integrality of circuit, especially when the condition of accompanying water spray and mechanical striking when burning, the cable still can keep the complete operation of circuit.

Further, still include the armor, the armor sets up in the annular gap between flame retardant coating and the cable oversheath.

The beneficial effect of adopting the further scheme is as follows: the armor layer can obviously reduce the influence of mechanical force on the cable, can bear the mechanical force acting on the cable, such as compression resistance and tension resistance, and is usually formed by a thick round steel wire, an arched steel wire, a thin round steel wire or two steel belts, two copper belt gaps or spiral wrapping. The steel tape armor layer has the main function of compression resistance and is suitable for underground arrangement occasions; the steel wire armor layer has the main function of tensile strength and is mainly used for underwater or vertical laying occasions. The armor material comprises cold-rolled steel strip for armored cable, galvanized steel strip for armored cable and plastic-coated steel strip.

Further, the armor layer includes many steel bands and many flexible bands, and steel band and flexible band are rectangular form, and steel band and flexible band interval set up in proper order in turn, and many steel bands and many flexible bands surround into tubular structure jointly.

The beneficial effect of adopting the further scheme is as follows: the steel strip has better compression resistance, the flexible belt is made of soft materials such as a nylon belt, and the irreversible material yield failure condition of the steel strip generated in the bending deformation process is remarkably reduced through the flexibility of the nylon belt.

Further, still include the warning layer, the warning layer cup joints in the cable oversheath outside.

The beneficial effect of adopting the further scheme is as follows: the warning layer mainly plays the warning effect to personnel, can carry out the sign of danger degree according to the circular telegram voltage of combined type cable, has improved the personnel's of process cable security, avoids the emergence of accident.

Further, still include a plurality of signal lines that are used for being connected with cable alarm device that opens circuit, a plurality of signal lines run through and set up in first filling layer, and the signal line includes two signal cores and signal oversheath, and the oversheath cover is established in the outside of two signal cores.

The beneficial effect of adopting the further scheme is as follows: through setting up the signal line, send the line number and trigger the cable alarm device that opens circuit and sound when the combined type cable is whole cracked or partial fracture to confirm the position of opening circuit, so that in time salvage, so that obtain better user experience, through setting up the signal line into a plurality ofly, improved and produced cracked discernment degree on the cable cross-section in the arbitrary direction, the security is higher.

Drawings

Fig. 1 is a cross-sectional view of a composite cable of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the cable comprises a first shielding layer, 2, a first reinforcing core, 3, a conductive wire, 4, an insulating layer, 5, a baffle, 6, an optical fiber outer sheath, 7, a reinforcing copper wire, 8, a water blocking layer, 9, a second filling layer, 10, an optical fiber, 11, a second reinforcing core, 12, a signal outer sheath, 13, a signal core, 14, a first filling layer, 15, a second shielding layer, 16, a fire-resistant layer, 17, a flexible belt, 18, a steel belt, 19, a cable outer sheath, 20, an armor layer, 21, an optical fiber core, 22, a signal wire, 23 and a conductive wire core.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

As shown in fig. 1, a composite cable in the present embodiment includes: the cable comprises a first reinforcing core 2, a plurality of baffles 5, a plurality of conductive wire cores 23, a first shielding layer 1, a plurality of optical fiber wire cores 21, a second shielding layer 15, a cable outer sheath 19 and a first filling layer 14; the even fixedly connected with of 2 periphery sides of first enhancement core 5 has a plurality of baffles 5, all be provided with conductive core 23 in the cavity that forms between per two adjacent baffles 5, first shielding layer 1 cup joints in the outside of all baffles 5, second shielding layer 15 cover is established at the periphery side of first shielding layer 1 and is formed annular cavity between 1 with first shielding layer, many fiber core 21 are around the even array distribution of axis of annular cavity in annular cavity, first shielding layer 1, the clearance packing between second shielding layer 15 and many fiber core 21 has first filling layer 14, cable oversheath 19 cup joints the periphery side at second shielding layer 15.

Specifically, the first reinforcing core 2 can be made of galvanized steel wires, aramid fibers and other materials capable of improving the bending resistance of the cable; the baffle 5 adopts one of silicon rubber and fluororubber, or a mixture of the silicon rubber and the fluororubber in any proportion; the conductive wire core 23 is made of a conductive copper wire or an aluminum wire; the first shielding layer 1 and the second shielding layer 15 can be made of metal wires woven into a net shape or metal films; the optical fiber core 21 is made of the optical fiber 10 and is used for transmitting communication signals and optical signals; the cable outer sheath 19 is made of any one of polyvinyl chloride, polyolefin, fluoroplastic, chlorinated polyether and nylon materials; the first filling layer 14 is made of an insulating material processed by a PP rope, a hemp rope or a recycled rubber, and other materials capable of ensuring the roundness of the cable and avoiding the twist shape on the surface of the cable can be applied to the technical scheme.

The beneficial effect of this embodiment is: through setting up first enhancement core 2, the whole tensile and bending strength of combined type cable has been strengthened, through setting up a plurality of baffles 5, the effectual location of the conductive core 23 that has improved in the course of working, avoid because of the inaccurate phenomenon of location that the mutual slip that produces when conductive core 23 is cylindrical leads to, conductive core 23 is injectd in appointed space after setting up the baffle, the thickness of the combined type cable that obtains is even, the manufacturing degree of difficulty is low, through being provided with first shielding layer 1 in the outside of all conductive cores 23, the effectual electromagnetic radiation that can produce conductive core 23 has played the shielding effect, signal interference in its communication signal transmission to the optical core communication signal transmission process has been avoided, signal transmission's security has been improved, through the setting of optic fibre sinle 21, it can carry out power transmission to have realized combined type cable, can realize telephone again, Broadband and communications transmission such as cable television, the integrated level of cable and optical cable has been improved, construction cost is greatly reduced, construction cycle has been shortened, through setting up second shielding layer 15, the effectual shielding effect that realizes external signal, the electromagnetic interference of external signal to inside optic fibre sinle silk 21 of combined type cable and the production of conductive core 23 has been avoided, through setting up first filling layer 14, firm fix many optic fibre sinle silks 21 in the periphery side of first shielding layer 1, the inseparable degree that the inside cable of combined type cable combines has been improved simultaneously, through setting up cable oversheath 19, the security of the inside sinle silk of combined type cable has been improved, corrosion resistance and ageing resistance.

As shown in fig. 1, in some alternative embodiments, in the composite cable, the cross section of the conductive core 23 is a sector, the outer arc surface of the conductive core 23 abuts against the inner sidewall of the first shielding layer 1, the inner arc surface of the conductive core 23 abuts against the first reinforcing core 2, and two side planes of the conductive core 23 abut against two adjacent baffles 5 respectively.

The beneficial effects of the embodiment are as follows: through setting up conductive core 23 to the cross-section be fan-shaped, improved cable cross-section space utilization, the cable cross-section that the same quantity of conductive core 23 is constituteed is that the cable cross-section that circular shape conductive core 23 constitutes is littleer in cross-sectional shape, the consumption of filler material has been reduced, the effectual clearance of having eliminated between a plurality of circular sinle silks, conductive core 23 is fan-shaped simultaneously and helps simplifying the manufacturing procedure, the uniformity of cross-sectional size is better everywhere along the cable length is square.

As shown in fig. 1, in some alternative embodiments of the composite cable, the conductive wire core 23 includes an insulating layer 4 and a plurality of conductive wires 3, the plurality of conductive wires 3 are twisted into a fan-shaped core body, the insulating layer 4 is sleeved outside the fan-shaped core body, and outer surfaces of the insulating layer 4 abut against the first reinforcing core 2, an inner side wall of the first shielding layer 1, and two adjacent baffles 5, respectively.

Specifically, the insulating layer is made of polyvinyl chloride material, preferably wear-resistant polyvinyl chloride material or low-smoke low-halogen flame-retardant polyvinyl chloride material; the multiple wires are made of conductive copper wires or aluminum wires, the diameter of the conductive wire 3 is preferably 2-5mm to increase the stranding effect, and the fan-shaped wire core body formed by the insulating layer 4 and the multiple conductive wires 3 is bonded and connected by high-temperature-resistant glue.

The beneficial effects of the embodiment are as follows: through twisting many conductor wires 3 into fan-shaped line core, through the transposition mode, improved the whole bending resistance performance of conductor wire core 23, realized rational arrangement conductor wire 3 through the transposition and reduced the cable size, through cup jointing insulating layer 4 in fan-shaped line core outside, reduced the emergence of the short circuit phenomenon because of contact each other or indirect conduction leads to between the conductor wire core 23.

In some alternative embodiments, as shown in fig. 1, the optical fiber core 21 includes: the optical fiber module comprises a second reinforcing core 11, a plurality of optical fibers 10, a water-resistant layer 8, a second filling layer 9, a reinforcing copper wire 7 and an optical fiber outer sheath 6; the plurality of optical fibers 10 are uniformly arrayed on the periphery of the second reinforcing core 11 around the axis of the second reinforcing core 11, the water-resistant layer 8 is sleeved outside all the optical fibers 10, a second filling layer 9 is filled in gaps among the water-resistant layer 8, the second reinforcing core 11 and the plurality of optical fibers 10, the reinforcing copper wire 7 is wound on the periphery of the water-resistant layer 8, and the optical fiber outer sheath 6 is sleeved on the periphery of the reinforcing copper wire 7.

Specifically, the second reinforcing core 11 can be made of galvanized steel wires, aramid fibers and other materials capable of improving the bending resistance of the cable; the outer side of each optical fiber 10 is sleeved with an optical fiber loose sleeve; the water-blocking layer 8 is made of a water-blocking tape or other materials with water-blocking effect; the second filling layer 9 is made of water-blocking yarn; the reinforcing copper wire 7 can be spirally wound on the outer side of the water-resistant layer 8 or crossly wound on the outer side of the water-resistant layer 8, and the optical fiber outer sheath 6 is made of any one of polyvinyl chloride, polyolefin, fluoroplastic, chlorinated polyether and nylon materials.

The beneficial effects of the embodiment are as follows: through setting up the second and strengthening core 11, the tensile strength and the bending strength of optic fibre sinle silk 21 have been strengthened, many optical fiber 10 inlays and establishes in second filling layer 9, the damage that optical fiber 10 looks mutual friction produced has been reduced, through the cover is equipped with water blocking layer 8 in all optical fiber 10 outsides, the waterproof performance of optic fibre sinle silk 21 has been improved, strengthen copper wire 7 through twining in the 8 outsides of water blocking layer, the bending strength of the periphery lateral wall of optic fibre sinle silk 21 has been improved, effectively prevented the scattering of strengthening copper wire 7 and become invalid through cup jointing optic fibre oversheath 6 in strengthening the copper wire 7 outside, the guard action has been played to optic fibre sinle silk 21 simultaneously.

As shown in fig. 1, in some alternative embodiments a composite cable further comprises a third shielding layer disposed in the annular gap between the reinforcing copper wires 7 and the outer sheath 6 of the optical fibers.

Specifically, the third shielding layer may be made of a metal wire woven into a mesh shape or a metal film.

The beneficial effects of the embodiment are as follows: through setting up the third shielding layer, strengthened the anti signal interference ability of optic fibre sinle silk 21, played the effect of electric field shielding and preventing external electromagnetic wave interference simultaneously.

As shown in fig. 1, in some alternative embodiments a composite cable further comprises a flame retardant layer 16, the flame retardant layer 16 being disposed in the annular gap between the first shield layer 1 and the cable jacket 19.

Specifically, the fire-resistant cable refers to the performance that a test sample is burnt in flame under specified test conditions and can still keep normal operation within a certain time. Its essential characteristics are: the cable can still maintain the normal operation of the line for a period of time under fire conditions. In general, in case of fire, the cable can not be burnt at once, and the loop is safe. The main differences between fire and flame resistant cables are therefore: fire-resistant cables can maintain normal power supply for a period of time in the event of a fire, and fire-resistant cables do not have this characteristic. This characteristic determines the important role of fire-resistant cables in modern urban and industrial buildings, since the power supply circuits of the control, monitoring, guidance and alarm systems must remain in operation in case of fire. Therefore, the cable is mainly used in power supply loops from an emergency power supply to user fire-fighting equipment, fire alarm equipment, ventilation and smoke exhaust equipment, a pilot lamp, an emergency power socket, an emergency elevator and the like; the fire-resistant layer 16 is formed by winding a plurality of mica tapes, and the mica tapes are the key to the fire resistance of the cable because the allowable working temperature difference of different mica tapes is large.

The beneficial effects of the embodiment are as follows: usually, multilayer mica tape direct cladding can be adopted and form flame retardant coating 16 in the outside of first shielding layer 1, through setting up flame retardant coating 16, make the cable possess can be able to bear or endure the performance of long-time burning, even apply the high polymer of flame department and be burnt out, also can guarantee the normal operating of circuit, can keep the normal operating of certain time under the condition of flame burning, keep the integrality of circuit, especially under the condition that is along with water spraying and mechanical striking during the burning, the cable still can keep the complete operation of circuit.

As shown in fig. 1, in some alternative embodiments a composite cable further comprises an armor layer 20, the armor layer 20 being disposed in the annular gap between the flame retardant layer 16 and the outer cable jacket 19.

Specifically, the armor 20 is provided with a layer of metal protection on the outermost surface of the product to prevent the inner utility layer from being damaged during transportation and installation, and the armor 20 in some of the above-mentioned alternative embodiments is provided with a flexible material to increase the flexibility of the armor 20.

The beneficial effects of the embodiment are as follows: by arranging the armor layer 20, the influence of mechanical force on the cable can be remarkably reduced, and the cable can bear the mechanical force acting on the cable, such as pressure resistance and tension resistance, wherein the armor layer 20 is usually made of a thick round steel wire, an arched steel wire, a thin round steel wire or two steel belts 18, two copper belt gaps or spiral wrapping. The steel belt 18 armor layer 20 mainly has the function of compression resistance and is suitable for underground arrangement; the steel wire armor layer 20 mainly has the function of tensile strength and is mainly used for underwater or vertical laying occasions. The armor material includes a cold-rolled steel strip 18 for an armored cable, a galvanized steel strip 18 for an armored cable, and a plastic-coated steel strip 18.

In some alternative embodiments of a composite cable, as shown in fig. 1, the armor layer 20 includes a plurality of steel strips 18 and a plurality of flexible strips 17, the steel strips 18 and the flexible strips 17 are both in a long shape, the steel strips 18 and the flexible strips 17 are alternately arranged in sequence, and the plurality of steel strips 18 and the plurality of flexible strips 17 jointly enclose a tubular structure.

Specifically, the steel belt 18 may be one of a hot-dip galvanized steel belt 18, an electro-galvanized steel belt 18, or a painted steel belt 18, and the flexible belt 17 is made of a relatively soft and insulating material such as a nylon belt.

The beneficial effects of the embodiment are as follows: the comprehensive compression-resistant and tensile properties of the composite cable are obviously enhanced by arranging the armor layer 20 in a mode that the steel strips 18 and the flexible strips 17 are alternately arranged at combined intervals, the steel strips 18 have better compression-resistant property, the flexible strips 17 are made of softer materials such as nylon strips, and the irreversible material yield failure condition generated in the bending deformation process of the steel strips 18 is obviously reduced by the flexibility of the nylon strips.

As shown in fig. 1, in some alternative embodiments, the composite cable further includes a warning layer, which is sleeved outside the cable outer sheath 19.

Specifically, the warning layer can be made of a fluorescent material or a material with strong light reflection performance, and a coating with a warning color can be selected.

The beneficial effects of the embodiment are as follows: the warning layer mainly plays the warning effect to personnel, can carry out the sign of danger degree according to the circular telegram voltage of combined type cable, has improved the personnel's of process cable security, avoids the emergence of accident.

As shown in fig. 1, in some alternative embodiments, the composite cable further includes a plurality of signal wires 22 for connecting to a cable disconnection warning device, the plurality of signal wires 22 are disposed through the first filling layer 14, and the signal wires 22 include two signal cores 13 and a signal outer sheath 12, and the outer sheath is disposed outside the two signal cores 13.

Specifically, the cable disconnection warning device sounds when the signal line 22 is disconnected, and the sound of the cable disconnection warning device increases as the number of signal breaks increases.

The beneficial effects of the embodiment are as follows: through setting up signal line 22, send the line number and trigger the cable alarm device that opens circuit and sound when the combined type cable is whole cracked or partial fracture to confirm the position of opening circuit, so that in time salvage, so that obtain better user experience, through setting up signal line 22 into a plurality ofly, improved and produced cracked discernment degree on the cable cross-section in the arbitrary direction, the security is higher.

In some optional embodiments, the composite cable further includes a deratization physical layer having a deratization effect after being gnawed by rats, and the deratization physical layer is coated outside the cable outer sheath 19.

Specifically, the physical deratization layer comprises a base material composed of polyethylene or polyvinyl chloride and 0.5% of bromadiolone mother liquor mixed therein, in addition, the physical deratization layer also can comprise polyvinyl chloride or polyethylene composition base material and powdery pepper, and the physical deratization layer also can comprise polyvinyl chloride or polyethylene composition base material and mint leaf powder.

The beneficial effects of the embodiment are as follows: a deratization physical layer added with 0.5% bromadiolone mother solution is adopted, so that the rat damage can be effectively killed after the rat gnaws; the rat killing physical layer containing the chilli powder or the mint leaf powder can effectively drive rats.

In some optional embodiments, the composite cable further includes a hook, the hook is detachably connected to the outer sidewall of the cable outer sheath 19 along the length direction of the cable outer sheath 19, the hook is formed by bending a steel wire into a semicircular shape, and the open end faces the outer sidewall of the cable outer sheath 19.

Specifically, a metal piece with internal threads is embedded on the outer side wall of the cable outer sheath 19, and one end of the hook is processed into external threads matched with the embedded metal piece.

The beneficial effects of the embodiment are as follows: the fixed junction between many cables has been improved, has reduced the degree of difficulty that many cables binded, has improved the convenient degree of maintenance, damages when one of them cable and can be swift with its from the light dismantlement of many cables of binding together, need not to bind the mode of bandage through cutting off, and easy operation is convenient, has reduced the environmental pollution and the wasting of resources that adopt disposable to bind the ribbon and lead to.

In some optional embodiments of the composite cable, the cable outer sheath 19 is provided with a plurality of water through holes along the length direction thereof, the water through holes are uniformly arrayed on the cable outer sheath 19 around the circumference of the cable outer sheath 19, and preferably, the diameter of the water through holes is 3-10 mm.

The beneficial effects of the embodiment are as follows: the cable outer sheath 19 is provided with a plurality of water through holes, so that cold water can be introduced to cool the cable at high temperature in summer, and hot water can be introduced to prevent brittle fracture of the cable at low temperature in winter.

In the description herein, reference to the terms "embodiment one," "embodiment two," "example," "specific example," or "some examples," etc., means that a particular method, apparatus, or feature described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, methods, apparatuses, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite cable, comprising: the cable comprises a first reinforcing core (2), a plurality of baffles (5), a plurality of conductive wire cores (23), a first shielding layer (1), a plurality of optical fiber wire cores (21), a second shielding layer (15), a cable outer sheath (19) and a first filling layer (14); the outer periphery of the first reinforcing core (2) is uniformly and fixedly connected with a plurality of baffle plates (5), a conductive wire core (23) is arranged in a cavity formed between every two adjacent baffle plates (5), the first shielding layer (1) is sleeved on the outer sides of all the baffle plates (5), the second shielding layer (15) is sleeved on the outer periphery of the first shielding layer (1) and forms an annular cavity with the first shielding layer (1), a plurality of optical fiber wire cores (21) are uniformly distributed in the annular cavity in an array mode around the axis of the annular cavity, gaps among the first shielding layer (1), the second shielding layer (15) and the plurality of optical fiber wire cores (21) are filled with a first filling layer (14), and the cable outer sheath (19) is sleeved on the outer periphery of the second shielding layer (15);

the hook is detachably connected to the outer side wall of the cable outer sheath (19) along the length direction of the cable outer sheath (19); a metal piece with internal threads is embedded on the outer side wall of the cable outer sheath (19); the hook is formed by bending a steel wire into a semicircle, the open end of the hook faces the outer side wall of the cable outer sheath (19) and is in threaded connection with the metal piece;

the optical fiber core (21) comprises: the second reinforced core (11), the plurality of optical fibers (10), the water-resistant layer (8), the second filling layer (9), the reinforced copper wire (7) and the optical fiber outer sheath (6); the optical fibers (10) are uniformly arrayed on the periphery of the second reinforcing core (11) around the axis of the second reinforcing core (11), the waterproof layer (8) is sleeved outside all the optical fibers (10), the second filling layer (9) is filled in gaps among the waterproof layer (8), the second reinforcing core (11) and the optical fibers (10), the reinforcing copper wire (7) is wound on the periphery of the waterproof layer (8), and the optical fiber outer sheath (6) is sleeved on the periphery of the reinforcing copper wire (7);

the cable further comprises a third shielding layer arranged in an annular gap between the reinforcing copper wire (7) and the optical fiber outer sheath (6);

further comprising a fire resistant layer (16), said fire resistant layer (16) being arranged in an annular gap between said second shielding layer (15) and said outer cable sheath (19).

2. The composite cable of claim 1, wherein the conductive core (23) has a fan-shaped cross section, an outer arc surface of the conductive core (23) abuts against an inner sidewall of the first shielding layer (1), an inner arc surface of the conductive core (23) abuts against the first reinforcing core (2), and two side planes of the conductive core (23) abut against two adjacent baffles (5), respectively.

3. The composite cable of claim 2, wherein the conductive wire core (23) comprises an insulating layer (4) and a plurality of conductive wires (3), the plurality of conductive wires (3) are twisted into a fan-shaped wire core, the insulating layer (4) is sleeved outside the fan-shaped wire core, and the outer surface of the insulating layer (4) abuts against the first reinforcing core (2), the inner side wall of the first shielding layer (1) and two adjacent baffles (5) respectively.

4. A composite cable according to claim 1, further comprising an armor layer (20), the armor layer (20) being disposed in the annular gap between the flame retardant layer (16) and the outer cable jacket (19).

5. The composite cable of claim 4, wherein the armor layer (20) comprises a plurality of steel strips (18) and a plurality of flexible strips (17), the steel strips (18) and the flexible strips (17) are both in an elongated shape, the steel strips (18) and the flexible strips (17) are sequentially arranged alternately at intervals, and the plurality of steel strips (18) and the plurality of flexible strips (17) jointly enclose a tubular structure.

6. A composite cable according to any one of claims 1 to 5, further comprising a warning layer, said warning layer being sheathed outside said outer cable sheath (19).

7. A composite cable as claimed in any one of claims 1 to 5, further comprising a plurality of signal wires (22) for connection to a cable break alarm device, wherein a plurality of said signal wires (22) are disposed through said first filler layer (14), and wherein said signal wires (22) comprise two signal cores (13) and a signal outer sheath (12) disposed outside of said two signal cores (13).