CN114077023A

CN114077023A - Rat-proof optical cable

Info

Publication number: CN114077023A
Application number: CN202111469363.6A
Authority: CN
Inventors: 黄勤; 包耀文; 任建刚; 黄剑峰; 吴杰; 王喆; 吴建栋; 薛正兴
Original assignee: Yangtze Optical Fibre and Cable Co Ltd
Current assignee: Yangtze Optical Fibre and Cable Co Ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-02-22
Anticipated expiration: 2041-12-03
Also published as: CN114077023B

Abstract

The invention belongs to the technical field of optical cables, and particularly discloses a ratproof optical cable which is provided with a ratproof cable core, a protective layer coated outside the ratproof cable core and an outer protective layer positioned outside the protective layer, and is characterized in that: the ratproof cable core is in a convex hexagonal prism shape, all edges are on the same cylindrical surface, and the ratproof cable core is composed of a ratproof shell, a plurality of optical fiber ribbons, a first flat insulating wire and a second flat insulating wire; the ratproof shell has a special structure, a plurality of optical fiber ribbons are distributed in the central cavity of the ratproof shell in a staggered and stacked mode of adjacent layers, the first insulation flat wire is placed in the first accommodating cavity and the second accommodating cavity of the ratproof shell after being bent, and the second insulation flat wire is placed in the third accommodating cavity and the fourth accommodating cavity of the ratproof shell after being bent. The invention has the following main beneficial effects: the structure is more compact, the external diameter is smaller, the cost is lower, the inspection and the construction are more convenient, the structure is more stable and reliable, the heat dissipation effect is higher, the fiber core density is larger, and the influence of electric heating on optical transmission is smaller.

Description

Rat-proof optical cable

Technical Field

The invention belongs to the technical field of optical cables, and particularly discloses a ratproof optical cable.

Background

With the rapid development of communication technology, the demand of optical fiber ribbons is increasing day by day, and the demand of optical fiber ribbon cables with large core number is also increasing, on the other hand, in order to save the cost for power supply user application and reduce the trouble of application, users all want the same optical cable to have not only optical transmission capability but also electric power transmission capability; due to the mass use of the optical cable, users put higher requirements on the diameter and the cost of the optical cable, for example, smaller diameter is required, so that the consumption of various materials can be reduced, the product cost can be reduced, the renting cost of the pipeline can be saved, and more optical cables can be placed in the pipeline with the same specification.

In the prior art, optical fiber ribbon cables, such as central beam tube type optical fiber ribbon cables, layer-stranded optical fiber ribbon cables and the like recommended in the communication industry standard YD/T981 of the people's republic of China, the central beam tube type optical fiber ribbon cables are composed of a central beam tube, a reinforcing member positioned outside the central beam tube, a protective layer and a sheath layer; the layer-stranded ribbon optical cable is composed of a plurality of loose tubes, a central reinforcement, a protective layer covering the loose tubes and an outer sheath positioned outside the protective layer; the protective layer may be a multilayer; the recommended central tube or loose tube is a cylindrical tubular structure, the interior of the central tube or loose tube is hollow, the hollow part is composed of optical fiber bands, water-blocking paste and the like which are stacked in a rectangular mode, a space is generally arranged outside the optical fiber bands, the space is necessary for forming the optical fiber bands, the optical fiber bands rotate during production, so in order to ensure that the optical fiber bands do not rub against the wall of the loose tube or the central tube, the inner diameter of the wall of the loose tube or the central tube is generally larger than the diagonal length of the optical fiber bands, however, the space is wasted due to the mode, and the space of the loose tube cannot be effectively utilized.

CN213150436U discloses an easy-to-peel cable, which has a central reinforcement, four unit components, a protective layer, and an outer sheath, wherein the central reinforcement is coated with a cushion layer by extrusion molding, the unit components are symmetrically distributed outside the cushion layer, the protective layer covers all the unit components, and the outer sheath is located outside the protective layer; the method is characterized in that: the unit component comprises an upper pressure plate, a lower pressure plate and a transition plate, the other end of the upper pressure plate is vertically connected with one end of the transition plate, the other end of the transition plate is vertically connected with the other end of the lower pressure plate, the width of the upper pressure plate is smaller than that of the lower pressure plate, the upper pressure plate is parallel to the lower pressure plate, a containing cavity is formed between the upper pressure plate and the lower pressure plate, an upper limiting component is arranged on the lower surface of the upper pressure plate close to one end, a lower limiting component is arranged on the upper surface of the lower pressure plate close to one end, a plurality of transmission components are arranged in the containing cavity, and the upper limiting component and the lower limiting component can limit the positions of the transmission components so that the transmission components cannot escape from the containing cavity under normal conditions; the transverse wearing surface of the cushion layer is rectangular, the left side part of the lower surface of the lower pressing plate of the unit component and the lower surface of the transition plate of the unit component are tightly attached to the outer surface of the cushion layer, on the cross section of the easy-to-peel cable, in the adjacent unit components along the clockwise direction, the left side surface of the transition plate of the latter unit component is tightly attached to the right side part of the lower pressing plate of the last unit component, and the left side surface of the transition plate of the first unit component is tightly attached to the right side part of the lower pressing plate of the last unit component; the transmission component is an insulated wire which is composed of a conductor capable of transmitting electricity and an insulating layer coated outside the conductor. It has reached following beneficial effect: the unit parts are easier to take and place, the structure is more compact, the product diameter is smaller, the material consumption is less, the cost is lower, and the universality and the flexibility are stronger.

CN201229425 discloses a novel access optical cable with signal lines for metropolitan area networks, which includes an optical fiber ribbon, a sleeve thereof, a water blocking tape layer, an armor layer, and an outer sheath sequentially coated outside the sleeve, wherein a signal wire is arranged in the outer sheath. The cable has the functions of broadband access and electric signal transmission, can meet the requirement of user signal monitoring without additionally arranging a signal wire when being used for a metropolitan area network, is convenient to lay and construct, and reduces the construction cost. The signal conductor sleeve and the reinforcing part are positioned on one of the outer sheaths, and the signal conductor sleeve and the outer sheath are combined into a whole and are very difficult to separate, so that inconvenience is brought to construction, inspection and production; secondly, there is a reduced space for the outer diameter; thirdly, the space utilization of the loose tube is not high; fourthly, the heating of the signal wire affects the communication effect of the optical fiber ribbon, and the working temperature of the optical fiber is generally between-20 ℃ and +40 ℃, so that the abnormal condition of the optical fiber communication is possibly caused when the working temperature exceeds the temperature range, and the local interruption occurs mainly in the optical fiber transmission, such as steps displayed on an OTDR tester, namely, the change and mutation of attenuation.

CN211264992U discloses an improved optical cable, which has a first insulating layer, a first protective tube located in the first insulating layer, a plurality of optical fibers located in the first protective tube, a second insulating layer, a second conductor located in the second insulating layer, and a fusion component for combining the first insulating layer and the second insulating layer, wherein the first insulating layer is located at the right side of the second insulating layer; the fuse structure is characterized in that a first hook extending towards the lower right direction of the first insulating layer is arranged on the lower surface of the second insulating layer, a second hook extending towards the upper right direction of the first insulating layer is arranged on the upper surface of the second insulating layer, a first hook channel is arranged between the first hook and the fusion part, and a second hook channel is arranged between the second hook and the fusion part; a first hook groove is formed on the wall body of the first hook in the first hook channel, and a second hook groove is formed on the wall body of the second hook in the second hook channel; the second tearing opening is formed in the surface of the second insulating layer in the first hooking channel, and the problems of hooking and radiating in the process of optical cable construction and use are solved.

CN113625405A discloses an optical fiber ribbon cable, the thickness of each of the fifth, sixth, seventh and eighth side walls is different, which cannot resist the biting of animals uniformly, and the way of fixing the conductor or the insulated wire is realized by using hooks, and the conductor strips are rectangular, and are dispersed into four strips, which cannot transmit large capacity power effectively, and when the product area is increased, the material consumption and the cost are increased.

Although CN111403097A discloses a cable, an optical cable and an optical cable with a clamping structure, the clamping channel 14 is connected to the first accommodating cavity 125 and the second accommodating cavity 135, in view of the implementation example, one of the problems to be solved by the first accommodating cavity 125 and the second accommodating cavity 135 is heat dissipation, and the other is triangle limitation; it does not give any improvement in the sectional area of the conductor and enhancement in the power transmission capability; how to improve the space utilization; how to improve the rat-proof performance and the like.

The prior art can not solve the following technical problems simultaneously: how to further reduce the diameter of the optical cable, reduce the cost of the product, improve the heat dissipation effect of the product and enable the stripping and construction of the photoelectric part in the optical cable to be more convenient and rapid; and the effect of electrical heating of the product on the optical fiber transmission is reduced in use.

Disclosure of Invention

In order to solve the problems, the invention discloses a ratproof optical cable which is realized by adopting the following technical scheme.

The utility model provides a protection against rodents optical cable, has protection against rodents cable core, cladding protective layer outside the protection against rodents cable core, the outer jacket that is located outside the protective layer, its characterized in that: the rat-proof cable core is in a convex hexagonal prism shape, all the edges are on the same cylindrical surface, the rat-proof cable core is composed of a rat-proof shell, a plurality of optical fiber ribbons, a first insulation flat wire and a second insulation flat wire, the optical fiber ribbons are composed of a plurality of optical fibers and coating layers for coating all the optical fibers, the first insulation flat wire is composed of a first bent conductor and a first insulation layer for coating the first bent conductor, and the second insulation flat wire is composed of a second bent conductor and a second insulation layer for coating the second bent conductor; the rat-proof shell is composed of an optical fiber ribbon accommodating part, a first sidewall body, a second sidewall body, a third sidewall body, a fourth sidewall body, a fifth sidewall body and a sixth sidewall body, and is of an integrated structure; the optical fiber ribbon accommodating component is composed of a first parallel edge, a second parallel edge, a third parallel edge and a fourth parallel edge, one end of the first parallel edge is connected with the other end of the second parallel edge, one end of the second parallel edge is connected with the other end of the third parallel edge, one end of the third parallel edge is connected with the other end of the fourth parallel edge, one end of the fourth parallel edge is connected with the other end of the first parallel edge, an internal space defined by the first parallel edge, the second parallel edge, the third parallel edge and the fourth parallel edge is a central cavity, the first parallel edge is parallel to the third parallel edge, and the second parallel edge is parallel to the fourth parallel edge; the other end of the first sidewall body is connected with one end of the second sidewall body, the other end of the second sidewall body is connected with one end of the third sidewall body, the other end of the third sidewall body is connected with one end of the first parallel edge, the first sidewall body is positioned right above the fourth parallel edge and is parallel to the fourth parallel edge, the second sidewall body is positioned right above the first parallel edge and is parallel to the first parallel edge, a first accommodating cavity is formed between the first sidewall body and the fourth parallel edge, a second accommodating cavity is formed between the second sidewall body and the first parallel edge, the first accommodating cavity is communicated with the second accommodating cavity, one end of the first sidewall body is not in contact with the other end of the fourth parallel edge and forms a first opening, and an included angle formed by the first parallel edge and the fourth parallel edge is positioned right below an included angle formed by the first sidewall body and the second sidewall body; the other end of the fourth side wall body is connected with one end of the fifth side wall body, the other end of the fifth side wall body is connected with one end of the sixth side wall body, the other end of the sixth side wall body is connected with one end of the third parallel edge, the fourth side wall body is positioned under the second parallel edge and is parallel to the second parallel edge, the fifth side wall body is positioned under the third parallel edge and is parallel to the third parallel edge, a third accommodating cavity is formed between the fourth side wall body and the second parallel edge, a fourth accommodating cavity is formed between the fifth side wall body and the third parallel edge, the third accommodating cavity is communicated with the fourth accommodating cavity, one end of the fourth side wall body is not contacted with the other end of the second parallel edge and forms a second opening, and the included angle formed by the second parallel edge and the third parallel edge is positioned right above the included angle formed by the fourth side wall body and the fifth side wall body; the outer surface of the third sidewall body and the surface of one end of the fourth sidewall body are in the same plane, and the outer surface of the sixth sidewall body and the surface of one end of the first sidewall body are in the same plane; the optical fiber ribbons are distributed in the central cavity in a staggered and laminated mode of adjacent layers, the first insulation flat wire is placed in the first containing cavity and the second containing cavity after being bent, and the second insulation flat wire is placed in the third containing cavity and the fourth containing cavity after being bent.

The utility model provides a protection against rodents optical cable, has protection against rodents cable core, cladding protective layer outside the protection against rodents cable core, the outer jacket that is located outside the protective layer, its characterized in that: the rat-proof cable core is in a convex hexagonal prism shape, all the edges are on the same cylindrical surface, the rat-proof cable core is composed of a rat-proof shell, a plurality of optical fiber ribbons and a plurality of insulated wires, the optical fiber ribbons are composed of a plurality of optical fibers and coating layers for coating all the optical fibers, and the insulated wires are composed of electric conductors and insulating outer sleeves for coating the electric conductors; the rat-proof shell is composed of an optical fiber ribbon accommodating part, a first sidewall body, a second sidewall body, a third sidewall body, a fourth sidewall body, a fifth sidewall body and a sixth sidewall body, and is of an integrated structure; the optical fiber ribbon accommodating component is composed of a first parallel edge, a second parallel edge, a third parallel edge and a fourth parallel edge, one end of the first parallel edge is connected with the other end of the second parallel edge, one end of the second parallel edge is connected with the other end of the third parallel edge, one end of the third parallel edge is connected with the other end of the fourth parallel edge, one end of the fourth parallel edge is connected with the other end of the first parallel edge, an internal space defined by the first parallel edge, the second parallel edge, the third parallel edge and the fourth parallel edge is a central cavity, the first parallel edge is parallel to the third parallel edge, and the second parallel edge is parallel to the fourth parallel edge; the other end of the first sidewall body is connected with one end of the second sidewall body, the other end of the second sidewall body is connected with one end of the third sidewall body, the other end of the third sidewall body is connected with one end of the first parallel edge, the first sidewall body is positioned right above the fourth parallel edge and is parallel to the fourth parallel edge, the second sidewall body is positioned right above the first parallel edge and is parallel to the first parallel edge, a first accommodating cavity is formed between the first sidewall body and the fourth parallel edge, a second accommodating cavity is formed between the second sidewall body and the first parallel edge, the first accommodating cavity is communicated with the second accommodating cavity, one end of the first sidewall body is connected with the other end of the first sidewall body, a first opening is formed between one end of the first sidewall body and the other end of the fourth parallel edge, and an included angle formed by the first parallel edge and the fourth parallel edge is positioned right below an included angle formed by the first sidewall body and the second sidewall body; the other end of the fourth side wall body is connected with one end of the fifth side wall body, the other end of the fifth side wall body is connected with one end of the sixth side wall body, the other end of the sixth side wall body is connected with one end of the third parallel edge, the fourth side wall body is positioned under the second parallel edge and is parallel to the second parallel edge, the fifth side wall body is positioned under the third parallel edge and is parallel to the third parallel edge, a third accommodating cavity is formed between the fourth side wall body and the second parallel edge, a fourth accommodating cavity is formed between the fifth side wall body and the third parallel edge, the third accommodating cavity is communicated with the fourth accommodating cavity, one end of the fourth side wall body is connected with the other end of the second wall protection body, a second opening is formed between one end of the second wall protection body and the other end of the second parallel edge, and the included angle formed by the second parallel edge and the third parallel edge is positioned right above the included angle formed by the fourth side wall body and the fifth side wall body; the outer surface of the first wall protecting body and the outer surface of the sixth side wall body are in the same plane, and the outer surface of the second wall protecting body and the outer surface of the third side wall body are in the same plane; the optical fiber ribbons are distributed in the central cavity in a staggered and laminated mode of adjacent layers, and a plurality of insulated wires are arranged in the first accommodating cavity, the second accommodating cavity, the third accommodating cavity and the fourth accommodating cavity.

The utility model provides a protection against rodents optical cable, has protection against rodents cable core, cladding protective layer outside the protection against rodents cable core, the outer jacket that is located outside the protective layer, its characterized in that: the rat-proof cable core is in a convex hexagonal prism shape, all the edges are on the same cylindrical surface, the rat-proof cable core is composed of a rat-proof shell, a plurality of optical fiber ribbons, a first insulation flat wire and a second insulation flat wire, the optical fiber ribbons are composed of a plurality of optical fibers and coating layers for coating all the optical fibers, the first insulation flat wire is composed of a first bent conductor and a first insulation layer for coating the first bent conductor, and the second insulation flat wire is composed of a second bent conductor and a second insulation layer for coating the second bent conductor; the rat-proof shell is composed of an optical fiber ribbon accommodating part, a first sidewall body, a second sidewall body, a third sidewall body, a fourth sidewall body, a fifth sidewall body and a sixth sidewall body, and is of an integrated structure; the optical fiber ribbon accommodating component is composed of a first parallel edge, a second parallel edge, a third parallel edge and a fourth parallel edge, one end of the first parallel edge is connected with the other end, close to the second parallel edge, of the second parallel edge, one end of the second parallel edge is connected with the other end of the third parallel edge, one end of the third parallel edge is connected with the other end, close to the fourth parallel edge, of the fourth parallel edge, one end of the fourth parallel edge is connected with the other end of the first parallel edge, an internal space defined by the first parallel edge, the second parallel edge, the third parallel edge and the fourth parallel edge is a central cavity, the first parallel edge is parallel to the third parallel edge, and the second parallel edge is parallel to the fourth parallel edge; the other end of the first sidewall body is connected with one end of the second sidewall body, the other end of the second sidewall body is connected with one end of the third sidewall body, the other end of the third sidewall body is connected with the other end of the second parallel edge, the first sidewall body is positioned right above the fourth parallel edge and is parallel to the fourth parallel edge, the second sidewall body is positioned right above the first parallel edge and is parallel to the first parallel edge, a first accommodating cavity is formed between the first sidewall body and the fourth parallel edge, a second accommodating cavity is formed between the second sidewall body and the first parallel edge, the first accommodating cavity is communicated with the second accommodating cavity, the height of the first accommodating cavity is smaller than that of the second accommodating cavity, one end of the first sidewall body is not contacted with the other end of the fourth parallel edge and forms a first opening, and an included angle formed by the first parallel edge and the fourth parallel edge is positioned at the left side of an included angle formed by the first sidewall body and the second sidewall body; the other end of the fourth side wall body is connected with one end of the fifth side wall body, the other end of the fifth side wall body is connected with one end of the sixth side wall body, the other end of the sixth side wall body is connected with the other end of the fourth parallel edge, the fourth side wall body is positioned under the second parallel edge and is parallel to the second parallel edge, the fifth side wall body is positioned under the third parallel edge and is parallel to the third parallel edge, a third accommodating cavity is formed between the fourth side wall body and the second parallel edge, a fourth accommodating cavity is formed between the fifth side wall body and the third parallel edge, the third accommodating cavity is communicated with the fourth accommodating cavity, the height of the third accommodating cavity is smaller than that of the fourth accommodating cavity, one end of the fourth side wall body is not in contact with the other end of the second parallel edge and forms a second opening, and an included angle formed by the second parallel edge and the third parallel edge is higher than the left included angle formed by the fourth side wall body and the fifth side wall body; the outer surface of the third sidewall body and the surface of one end of the fourth sidewall body are in the same plane, and the outer surface of the sixth sidewall body and the surface of one end of the first sidewall body are in the same plane; the optical fiber ribbons are distributed in the central cavity in a staggered and laminated mode of adjacent layers, the first insulation flat wire is placed in the first accommodating cavity and the second accommodating cavity after being bent, and the height of the first insulation flat wire in the first accommodating cavity is smaller than that of the first insulation flat wire in the second accommodating cavity; the second insulation flat wire is bent and then placed in the third containing cavity and the fourth containing cavity, and the height of the second insulation flat wire in the third containing cavity is smaller than that of the second insulation flat wire in the fourth containing cavity.

The utility model provides a protection against rodents optical cable, has protection against rodents cable core, cladding protective layer outside the protection against rodents cable core, the outer jacket that is located outside the protective layer, its characterized in that: the rat-proof cable core is in a convex hexagonal prism shape, all the edges are on the same cylindrical surface, the rat-proof cable core is composed of a rat-proof shell, a plurality of optical fiber ribbons and a plurality of insulated wires, the optical fiber ribbons are composed of a plurality of optical fibers and coating layers for coating all the optical fibers, and the insulated wires are composed of electric conductors and insulating outer sleeves for coating the electric conductors; the rat-proof shell is composed of an optical fiber ribbon accommodating part, a first sidewall body, a second sidewall body, a third sidewall body, a fourth sidewall body, a fifth sidewall body and a sixth sidewall body, and is of an integrated structure; the optical fiber ribbon accommodating component is composed of a first parallel edge, a second parallel edge, a third parallel edge and a fourth parallel edge, one end of the first parallel edge is connected with the other end, close to the second parallel edge, of the second parallel edge, one end of the second parallel edge is connected with the other end of the third parallel edge, one end of the third parallel edge is connected with the other end, close to the fourth parallel edge, of the fourth parallel edge, one end of the fourth parallel edge is connected with the other end of the first parallel edge, an internal space defined by the first parallel edge, the second parallel edge, the third parallel edge and the fourth parallel edge is a central cavity, the first parallel edge is parallel to the third parallel edge, and the second parallel edge is parallel to the fourth parallel edge; the other end of the first sidewall body is connected with one end of the second sidewall body, the other end of the second sidewall body is connected with one end of the third sidewall body, the other end of the third sidewall body is connected with the other end of the second parallel edge, the first sidewall body is positioned right above the fourth parallel edge and is parallel to the fourth parallel edge, the second sidewall body is positioned right above the first parallel edge and is parallel to the first parallel edge, a first accommodating cavity is formed between the first sidewall body and the fourth parallel edge, a second accommodating cavity is formed between the second sidewall body and the first parallel edge, the first accommodating cavity is communicated with the second accommodating cavity, the height of the first accommodating cavity is smaller than that of the second accommodating cavity, one end of the first sidewall body is connected with the other end of the first sidewall body, a first opening is formed between one end of the first sidewall body and the other end of the fourth parallel edge, and an included angle formed by the first parallel edge and the fourth parallel edge is positioned below the included angle formed by the first sidewall body and the second sidewall body; the other end of the fourth side wall body is connected with one end of a fifth side wall body, the other end of the fifth side wall body is connected with one end of a sixth side wall body, the other end of the sixth side wall body is connected with the other end of a fourth parallel edge, the fourth side wall body is positioned under the second parallel edge and is parallel to the second parallel edge, the fifth side wall body is positioned under the third parallel edge and is parallel to the third parallel edge, a third accommodating cavity is formed between the fourth side wall body and the second parallel edge, a fourth accommodating cavity is formed between the fifth side wall body and the third parallel edge, the third accommodating cavity is communicated with the fourth accommodating cavity, the height of the third accommodating cavity is smaller than that of the fourth accommodating cavity, one end of the fourth side wall body is connected with the other end of the second wall protection body, a second opening is formed between one end of the second wall protection body and the other end of the second parallel edge, and the included angle formed by the third parallel edge is positioned above the left included angle formed by the fourth side wall body and the fifth side wall body; the optical fiber ribbons are distributed in the central cavity in a staggered and laminated mode of adjacent layers, the outer surface of the first wall protecting body and the outer surface of the sixth side wall body are in the same plane, and the outer surface of the second wall protecting body and the outer surface of the third side wall body are in the same plane; the first accommodating cavity, the second accommodating cavity, the third accommodating cavity and the fourth accommodating cavity are all provided with a plurality of insulated wires.

The utility model provides a protection against rodents optical cable, has protection against rodents cable core, cladding protective layer outside the protection against rodents cable core, the outer jacket that is located outside the protective layer, its characterized in that: the rat-proof cable core is in a convex hexagonal prism shape, all the edges are on the same cylindrical surface, the rat-proof cable core is composed of a rat-proof shell, a plurality of optical fiber ribbons and a plurality of insulated wires, the optical fiber ribbons are composed of a plurality of optical fibers and coating layers for coating all the optical fibers, and the insulated wires are composed of electric conductors and insulating outer sleeves for coating the electric conductors; the rat-proof shell is composed of an optical fiber ribbon accommodating part, a first sidewall body, a second sidewall body, a third sidewall body, a fourth sidewall body, a fifth sidewall body and a sixth sidewall body, and is of an integrated structure; the optical fiber ribbon accommodating component is composed of a first parallel edge, a second parallel edge, a third parallel edge and a fourth parallel edge, one end of the first parallel edge is connected with the other end, close to the second parallel edge, of the second parallel edge, one end of the second parallel edge is connected with the other end of the third parallel edge, one end of the third parallel edge is connected with the other end, close to the fourth parallel edge, of the fourth parallel edge, one end of the fourth parallel edge is connected with the other end of the first parallel edge, an internal space defined by the first parallel edge, the second parallel edge, the third parallel edge and the fourth parallel edge is a central cavity, the first parallel edge is parallel to the third parallel edge, and the second parallel edge is parallel to the fourth parallel edge; the other end of the first sidewall body is connected with one end of the second sidewall body, the other end of the second sidewall body is connected with one end of the third sidewall body, the other end of the third sidewall body is connected with the other end of the second parallel edge, the first sidewall body is positioned right above the fourth parallel edge and is parallel to the fourth parallel edge, the second sidewall body is positioned right above the first parallel edge and is parallel to the first parallel edge, a first accommodating cavity is formed between the first sidewall body and the fourth parallel edge, a second accommodating cavity is formed between the second sidewall body and the first parallel edge, the first accommodating cavity is communicated with the second accommodating cavity, the height of the first accommodating cavity is smaller than that of the second accommodating cavity, one end of the first sidewall body is connected with the other end of the first sidewall body, a first opening is formed between one end of the first sidewall body and the other end of the fourth parallel edge, and an included angle formed by the first parallel edge and the fourth parallel edge is positioned below the included angle formed by the first sidewall body and the second sidewall body; the other end of the fourth side wall body is connected with one end of a fifth side wall body, the other end of the fifth side wall body is connected with one end of a sixth side wall body, the other end of the sixth side wall body is connected with the other end of a fourth parallel edge, the fourth side wall body is positioned under the second parallel edge and is parallel to the second parallel edge, the fifth side wall body is positioned under the third parallel edge and is parallel to the third parallel edge, a third accommodating cavity is formed between the fourth side wall body and the second parallel edge, a fourth accommodating cavity is formed between the fifth side wall body and the third parallel edge, the third accommodating cavity is communicated with the fourth accommodating cavity, the height of the third accommodating cavity is smaller than that of the fourth accommodating cavity, one end of the fourth side wall body is connected with the other end of the second wall protection body, a second opening is formed between one end of the second wall protection body and the other end of the second parallel edge, and the included angle formed by the third parallel edge is positioned above the left included angle formed by the fourth side wall body and the fifth side wall body; the optical fiber ribbons are distributed in the central cavity in a staggered and laminated mode of adjacent layers, the outer surface of the first wall protecting body and the outer surface of the sixth side wall body are in the same plane, and the outer surface of the second wall protecting body and the outer surface of the third side wall body are in the same plane; the second accommodating cavity and the fourth accommodating cavity are respectively provided with a plurality of insulated wires.

The invention has the following main beneficial effects: the structure is more compact, the external diameter is smaller, the cost is lower, the inspection and the construction are more convenient, the structure is more stable and reliable, the heat dissipation effect is higher, the fiber core density is larger, and the influence of electric heating on optical transmission is smaller.

Drawings

Fig. 1 is a schematic cross-sectional structure of embodiment 1 of the present invention.

Fig. 2 is a schematic perspective view of the rat-proof cable core used in fig. 1 after one-section decomposition.

Fig. 3 is an enlarged front view of fig. 2.

Fig. 4 is a perspective view of the rat-proof housing used in fig. 2.

Fig. 5 is an enlarged front view of fig. 4.

Fig. 6 is a schematic cross-sectional view showing a ratproof housing used in embodiment 2 of the present invention.

Fig. 7 is a schematic cross-sectional view of the rat-proof cable core used in example 2 of the present invention with the optical fiber ribbon removed.

Fig. 8 is a schematic cross-sectional view of the rat-proof cable core used in practical example 3 of the present invention with the optical fiber ribbon removed.

Fig. 9 is a schematic cross-sectional view of the rat-proof cable core used in example 4 of the present invention with the optical fiber ribbon removed.

Fig. 10 is a schematic cross-sectional structure of embodiment 5 of the present invention.

Fig. 11 is a schematic cross-sectional structure of embodiment 6 of the present invention.

Fig. 12 is a schematic cross-sectional structure of embodiment 7 of the present invention.

Fig. 13 is a schematic cross-sectional structure diagram of embodiment 8 of the present invention.

In the figure: 1-rat-proof cable core, 2-protective layer, 3-outer protective layer, 4-central reinforcement, 11-optical fiber ribbon, 111-optical fiber, 112-coating layer, 12-first insulating flat wire, 121-first bending conductor, 122-first insulating layer, 13-second insulating flat wire, 131-second bending conductor, 132-second insulating layer, 141-first sidewall body, 142-second sidewall body, 143-third sidewall body, 144-fourth sidewall body, 145-fifth sidewall body, 146-sixth sidewall body, 150-central cavity, 151-first parallel edge, 152-second parallel edge, 153-third parallel edge, 154-fourth conductor parallel edge, 160-first opening, 161-first accommodating cavity, 162-second accommodating cavity, 170-second opening, 171-third accommodating cavity, 172-fourth accommodating cavity, 18-insulated wire, 181-141182-insulated outer sheath, 1-first protective wall body, 1441 — second bulkhead body.

Detailed Description

Examples 1

Please see fig. 1 to 5, a rat-proof optical cable, which has a rat-proof cable core 1, a protection layer 2 coated outside the rat-proof cable core, and an outer protection layer 3 located outside the protection layer, and is characterized in that: the rat-proof cable core 1 is in a convex hexagonal prism shape, all edges are on the same cylindrical surface, the rat-proof cable core 1 is composed of a rat-proof shell, a plurality of optical fiber ribbons 11, a first insulation flat wire 12 and a second insulation flat wire 13, the optical fiber ribbons 11 are composed of a plurality of optical fibers 111 and a coating layer 112 for coating all the optical fibers, the first insulation flat wire 12 is composed of a first bending conductor 121 and a first insulation layer 122 for coating the first bending conductor, and the second insulation flat wire 13 is composed of a second bending conductor 131 and a second insulation layer 132 for coating the second bending conductor; the rat-proof shell is composed of an optical fiber ribbon accommodating part, a first sidewall body 141, a second sidewall body 142, a third sidewall body 143, a fourth sidewall body 144, a fifth sidewall body 145 and a sixth sidewall body 146, and is of an integrated structure; the optical fiber ribbon accommodating component is composed of a first parallel edge 151, a second parallel edge 152, a third parallel edge 153 and a fourth parallel edge 154, one end of the first parallel edge 151 is connected with the other end of the second parallel edge 152, one end of the second parallel edge 152 is connected with the other end of the third parallel edge 153, one end of the third parallel edge 153 is connected with the other end of the fourth parallel edge 154, one end of the fourth parallel edge 154 is connected with the other end of the first parallel edge 151, an internal space enclosed by the first parallel edge 151, the second parallel edge 152, the third parallel edge 153 and the fourth parallel edge 154 is a central cavity 150, the first parallel edge 151 is parallel to the third parallel edge 153, and the second parallel edge 152 is parallel to the fourth parallel edge 154; the other end of the first sidewall body 141 is connected with one end of the second sidewall body 142, the other end of the second sidewall body 142 is connected with one end of the third sidewall body 143, the other end of the third sidewall body 143 is connected with one end of the first parallel edge 151, the first sidewall body 141 is located right above the fourth parallel edge 154 and is parallel to the fourth parallel edge 154, the second sidewall body 142 is located right above the first parallel edge 151 and is parallel to the first parallel edge 151, a first accommodating cavity 161 is formed between the first sidewall body 141 and the fourth parallel edge 154, a second accommodating cavity 162 is formed between the second sidewall body 142 and the first parallel edge 151, the first accommodating cavity 161 is communicated with the second accommodating cavity 162, one end of the first sidewall body 141 is not in contact with the other end of the fourth parallel edge 154 and forms a first opening 160, and an included angle formed by the first parallel edge 151 and the fourth parallel edge 154 is located right below an included angle formed by the first sidewall body 141 and the second sidewall body 142; the other end of the fourth sidewall 144 is connected to one end of the fifth sidewall 145, the other end of the fifth sidewall 145 is connected to one end of the sixth sidewall 146, the other end of the sixth sidewall 146 is connected to one end of the third parallel edge 153, the fourth sidewall 144 is located under the second parallel edge 152 and parallel to the third parallel edge, the fifth sidewall 145 is located under the third parallel edge 153 and parallel to the third parallel edge 153, a third accommodating cavity 171 is formed between the fourth sidewall 144 and the second parallel edge 152, a fourth accommodating cavity 172 is formed between the fifth sidewall 145 and the third parallel edge 153, the third accommodating cavity 171 is communicated with the fourth accommodating cavity 172, one end of the fourth sidewall 144 is not in contact with the other end of the second parallel edge 152 and forms a second opening 170, and an included angle formed by the second parallel edge 152 and the third parallel edge 153 is located right above an included angle formed by the fourth sidewall 144 and the fifth sidewall 145; the outer surface of the third sidewall body 143 is in the same plane as the surface of one end of the fourth sidewall body 144, and the outer surface of the sixth sidewall body 146 is in the same plane as the surface of one end of the first sidewall body 141; a plurality of optical fiber ribbons 11 are distributed in the central cavity 150 in a staggered and stacked manner in adjacent layers, the first insulation flat wires 12 are bent and then placed in the first accommodating cavity 161 and the second accommodating cavity 162, and the second insulation flat wires 13 are bent and then placed in the third accommodating cavity 171 and the fourth accommodating cavity 172.

EXAMPLES example 2

Referring to fig. 6 and 7 and fig. 1 to 5, a rat-proof optical cable includes a rat-proof cable core 1, a protective layer 2 coated outside the rat-proof cable core, and an outer protective layer 3 located outside the protective layer, and is characterized in that: the rat-proof cable core 1 is in a convex hexagonal prism shape, all edges are on the same cylindrical surface, the rat-proof cable core 1 is composed of a rat-proof shell, a plurality of optical fiber ribbons 11, a first insulation flat wire 12 and a second insulation flat wire 13, the optical fiber ribbons 11 are composed of a plurality of optical fibers 111 and a coating layer 112 for coating all the optical fibers, the first insulation flat wire 12 is composed of a first bending conductor 121 and a first insulation layer 122 for coating the first bending conductor, and the second insulation flat wire 13 is composed of a second bending conductor 131 and a second insulation layer 132 for coating the second bending conductor; the rat-proof shell is composed of an optical fiber ribbon accommodating part, a first sidewall body 141, a second sidewall body 142, a third sidewall body 143, a fourth sidewall body 144, a fifth sidewall body 145 and a sixth sidewall body 146, and is of an integrated structure; the optical fiber ribbon accommodating component is composed of a first parallel edge 151, a second parallel edge 152, a third parallel edge 153 and a fourth parallel edge 154, wherein one end of the first parallel edge 151 is connected with the other end close to the second parallel edge 152, one end of the second parallel edge 152 is connected with the other end of the third parallel edge 153, one end of the third parallel edge 153 is connected with the other end close to the fourth parallel edge 154, one end of the fourth parallel edge 154 is connected with the other end of the first parallel edge 151, the internal space enclosed by the first parallel edge 151, the second parallel edge 152, the third parallel edge 153 and the fourth parallel edge 154 is a central cavity 150, the first parallel edge 151 is parallel to the third parallel edge 153, and the second parallel edge 152 is parallel to the fourth parallel edge 154; the other end of the first sidewall body 141 is connected with one end of the second sidewall body 142, the other end of the second sidewall body 142 is connected with one end of the third sidewall body 143, the other end of the third sidewall body 143 is connected with the other end of the second parallel edge 152, the first sidewall body 141 is located right above the fourth parallel edge 154 and is parallel to the fourth parallel edge 154, the second sidewall body 142 is located right above the first parallel edge 151 and is parallel to the first parallel edge 151, a first accommodating cavity 161 is formed between the first sidewall body 141 and the fourth parallel edge 154, a second accommodating cavity 162 is formed between the second sidewall body 142 and the first parallel edge 151, the first accommodating cavity 161 is communicated with the second accommodating cavity 162, the height of the first accommodating cavity 161 is smaller than that of the second accommodating cavity 162, the one end of the first sidewall body 141 is not in contact with the other end of the fourth parallel edge 154 and forms a first opening 160, and an included angle formed by the first parallel edge 151 and the fourth parallel edge 154 is located below a left side of an included angle formed by the first sidewall body 141 and the second sidewall body 142; the other end of the fourth sidewall 144 is connected to one end of the fifth sidewall 145, the other end of the fifth sidewall 145 is connected to one end of the sixth sidewall 146, the other end of the sixth sidewall 146 is connected to the other end of the fourth parallel edge 154, the fourth sidewall 144 is located right below the second parallel edge 152 and parallel to the second parallel edge, the fifth sidewall 145 is located right below the third parallel edge 153 and parallel to the third parallel edge, a third accommodating cavity 171 is formed between the fourth sidewall 144 and the second parallel edge 152, a fourth accommodating cavity 172 is formed between the fifth sidewall 145 and the third parallel edge 153, the third accommodating cavity 171 is communicated with the fourth accommodating cavity 172, the third accommodating cavity 171 is lower than the fourth accommodating cavity 172, one end of the fourth sidewall 144 is not in contact with the other end of the second parallel edge 152 and forms a second opening 170, and an included angle formed between the fourth sidewall 144 and the fifth sidewall 145 by the third parallel edge 152 and the third parallel edge 153 is left upper part of the included angle formed between the fourth sidewall 144 and the fifth sidewall 145; the outer surface of the third sidewall body 143 is in the same plane as the surface of one end of the fourth sidewall body 144, and the outer surface of the sixth sidewall body 146 is in the same plane as the surface of one end of the first sidewall body 141; a plurality of optical fiber ribbons 11 are distributed in the central cavity 150 in a staggered and laminated manner of adjacent layers, the first flat insulation wires 12 are bent and then placed in the first accommodating cavity 161 and the second accommodating cavity 162, and the height of the first flat insulation wires 12 in the first accommodating cavity 161 is smaller than that of the first flat insulation wires 12 in the second accommodating cavity 162; the second insulated flat wire 13 is bent and placed in the third accommodation cavity 171 and the fourth accommodation cavity 172, and the height of the second insulated flat wire 12 in the third accommodation cavity 171 is smaller than the height of the second insulated flat wire 12 in the fourth accommodation cavity 172.

EXAMPLE 3

Referring to fig. 8 and fig. 1 to 7, a rat-proof optical cable is substantially the same as embodiment 2, except that: the first insulation flat wire and the second insulation flat wire are both replaced by an insulation lead 18, and the insulation lead 18 consists of a conductor 181 and an insulation jacket 182 covering the conductor; the second accommodating cavity 162 is internally provided with two insulated wires 18, the fourth accommodating cavity 172 is also internally provided with two insulated wires 18, the diameter of each insulated wire is larger than the height of the first accommodating cavity, and the diameter of each insulated wire is larger than the height of the third accommodating cavity; the first accommodating cavity and the third accommodating cavity are both not provided with insulated wires, the first accommodating cavity is not provided with a first insulated flat wire, and the third accommodating cavity is not provided with a second insulated flat wire.

The second receiving cavity 162 may further include a plurality of insulated wires, and similarly, the fourth receiving cavity may also include a plurality of insulated wires.

EXAMPLE 4

Referring to fig. 9 and fig. 1 to 8, a rat-proof optical cable, referring to embodiment example 3, is substantially the same as embodiment example 1 except that: one end of the first sidewall 141 is connected to the other end of the first sidewall 1411, and a first opening 160 is formed between one end of the first sidewall 1411 and the other end of the fourth parallel edge 154; secondly, one end of the fourth sidewall 144 is connected to the other end of the second wall 1441, and a second opening 170 is formed between one end of the second wall 1441 and the other end of the second parallel edge 152; thirdly, the first insulation flat wire in the first containing cavity and the second containing cavity is replaced by a plurality of insulation conducting wires 18; fourthly, the second insulated flat wires in the third and fourth accommodating cavities are replaced by a plurality of insulated wires 18; fifth, the outer surface of the first sidewall 1411 and the outer surface of the sixth sidewall 146 are in the same plane, and the outer surface of the second sidewall 1441 and the outer surface of the third sidewall 143 are in the same plane.

Further, the first and

second retaining walls

1411 and 1441 may also be used in the

embodiments

2 and 3.

EXAMPLE 5

Referring to fig. 10 and fig. 1 to 9, a rat-proof optical cable includes three rat-proof cable cores 1, a protective layer 2 covering all the rat-proof cable cores, and an outer protective layer 3 located outside the protective layer, and is characterized in that: the rat-proof cable core 1 is any one of embodiment example 1 to embodiment example 4 or any combination of embodiment example 1 to embodiment example 4; the two rat-proof cable cores are parallel in the horizontal direction and are placed in a close fit manner, the third rat-proof cable core is positioned above the two rat-proof cable cores which are placed in a close fit manner in the horizontal direction, and each third rat-proof cable core is provided with a side wall body which is respectively attached to one side wall body of the two rat-proof cable cores which are placed in a close fit manner in the horizontal direction; the protection layer is attached to one edge on the left side of the left rat-proof cable core which is closely placed in the horizontal direction, the protection layer is attached to one edge on the right side of the right rat-proof cable core which is closely placed in the horizontal direction, and the protection layer is attached to the top edge of the third rat-proof cable core; the protective layer is in a cylindrical shape.

EXAMPLE 6

Referring to fig. 11 and fig. 1 to 9, a rat-proof optical cable includes four rat-proof cable cores 1, a protective layer 2 covering all the rat-proof cable cores, and an outer protective layer 3 located outside the protective layer, and is characterized in that: the rat-proof cable core 1 is any one of embodiment example 1 to embodiment example 4 or any combination of embodiment example 1 to embodiment example 4; the two rat-proof cable cores are parallel in the horizontal direction and are placed in a close fit manner, the third rat-proof cable core is positioned above the two rat-proof cable cores which are placed in a close fit manner in the horizontal direction, and each third rat-proof cable core is provided with a side wall body which is respectively attached to one side wall body of the two rat-proof cable cores which are placed in a close fit manner in the horizontal direction; the fourth rat-proof cable core is positioned below the two rat-proof cable cores which are arranged in a clinging manner in the horizontal direction, and each fourth rat-proof cable core is provided with a side wall body which is respectively clinging to one side wall body of the two rat-proof cable cores which are arranged in a clinging manner in the horizontal direction; the protective layer is attached to two left edges of the left rat-proof cable core which is closely placed in the horizontal direction, the protective layer is attached to two right edges of the right rat-proof cable core which is closely placed in the horizontal direction, the protective layer is attached to a top edge of the third rat-proof cable core, and the protective layer is attached to a bottom edge of the fourth rat-proof cable core; the protective layer is in an elliptic cylinder shape.

EXAMPLES example 7

Referring to fig. 12 and fig. 1 to 9, a rat-proof optical cable includes six rat-proof cable cores 1, a protective layer 2 covering all the rat-proof cable cores, and an outer protective layer 3 located outside the protective layer, and is characterized in that: the rat-proof cable core 1 is any one of embodiment example 1 to embodiment example 4 or any combination of embodiment example 1 to embodiment example 4; the three rat-proof cable cores are parallel in the horizontal direction and are adjacently placed in a mutual close fit manner, and the three rat-proof cable cores are called a first group of horizontal bodies; the fourth and fifth ratproof cable cores are parallel in the horizontal direction and are closely placed, and the second group of the ratproof cable cores are called a second group of horizontal bodies; the sixth and seventh rat-proof cable cores are parallel in the horizontal direction and are closely placed, and the cable cores are called a third group of horizontal bodies; the second group of horizontal bodies is positioned above the first group of horizontal bodies, and the third group of horizontal bodies is positioned below the first group of horizontal bodies; the fourth and fifth ratproof cable cores are respectively stacked on the upper gap formed by the adjacent ratproof cable cores among the first group of horizontal bodies, and the sixth and seventh ratproof cable cores are respectively stacked on the lower gap formed by the adjacent ratproof cable cores among the first group of horizontal bodies; each ratproof cable core in the second group of horizontal bodies is provided with two edges which are attached to the protective layer, each ratproof cable core in the third group of horizontal bodies is provided with two edges which are attached to the protective layer, two edges on the left side of the ratproof cable core on the left side in the first group of horizontal bodies are attached to the protective layer, and two edges on the right side of the ratproof cable core on the right side in the first group of horizontal bodies are attached to the protective layer; the protective layer is in a cylindrical shape.

EXAMPLES example 8

Referring to fig. 13 and fig. 1 to 9, a ratproof optical cable is substantially the same as embodiment 7 except that the central ratproof cable core in the middle of the first set of horizontal bodies is replaced by a central reinforcing member 4, and all the ratproof cable cores are tangent to the central reinforcing member; the protective layer is in a cylindrical shape.

Above-mentioned protection against rodents optical cable, its characterized in that: the material of the central reinforcement is steel or iron or glass fiber reinforced plastic.

In the application, the rat-proof cable core described in the embodiment examples 2, 3 and 4 can be used alone, and can also be a rat-proof optical cable.

The rat-proof shell in the application can be integrally extruded or drawn, and can also be formed by welding.

The rat-proof optical cable described in any of the above embodiments is characterized in that: the central cavity may also be filled with a fiber paste, preferably with fiber ribbons wrapped between and/or throughout.

The rat-proof optical cable described in any of the above embodiments is characterized in that: the ratproof shell is made of plastic or composite material or steel or iron or aluminum or copper or alloy, and preferably made of glass fiber reinforced plastic or ratproof plastic.

The rat-proof optical cable described in any of the above embodiments is characterized in that: the protective layer is made of steel, iron, aluminum, copper, alloy, glass fiber reinforced plastic, ratproof plastic, water-blocking tape, non-woven fabric, polyester tape, mica tape or steel tape.

The rat-proof optical cable described in any of the above embodiments is characterized in that: the outer protective layer is made of ratproof plastic.

The rat-proof optical cable described in any of the above embodiments is characterized in that: the type of the optical fiber is G.652, G.653, G.654, G.655, G.656, G.657, A1a, A1b, A1c, A1d, A1e or plastic optical fiber.

The rat-proof optical cable described in any of the above embodiments is characterized in that: the material of the coating layer is plastic, preferably polyester plastic.

The rat-proof optical cable described in any of the above embodiments is characterized in that: the material of the first bent conductor is copper or aluminum or alloy.

The rat-proof optical cable described in any of the above embodiments is characterized in that: the material of the second bent conductor is copper or aluminum or alloy.

The rat-proof optical cable described in any of the above embodiments is characterized in that: the material of the first insulating layer is plastic.

The rat-proof optical cable described in any of the above embodiments is characterized in that: the material of the second insulating layer is plastic.

The rat-proof optical cable described in any of the above embodiments is characterized in that: the material of the electrical conductor is copper or aluminum or an alloy.

The rat-proof optical cable described in any of the above embodiments is characterized in that: the material of the insulating casing is plastic.

The rat-proof optical cable described in any of the above embodiments is characterized in that: the materials of the first side wall body to the sixth side wall body are steel, iron, aluminum, copper, alloy, glass fiber reinforced plastic or ratproof plastic.

The rat-proof optical cable described in any of the above embodiments is characterized in that: the first to fourth parallel edges are made of the same material as the first to sixth sidewall bodies.

The application in a protection against rodents optical cable, its characterized in that: the first sidewall protection body is made of the same material as the first sidewall body to the sixth sidewall body.

The application in a protection against rodents optical cable, its characterized in that: the second sidewall protection body is made of the same material as the first sidewall body to the sixth sidewall body.

In the application, the first bent conductor in the first insulation flat wire is a soft conductor, and when the first bent conductor is formed by weaving a plurality of soft conductor wires, the first bent conductor has extremely high flexibility, so that the first bent conductor can be effectively folded; similarly, the second bent conductor in the second insulated flat wire is a soft conductor, and can have extremely high flexibility when being formed by weaving a plurality of soft conductor wires, so that the second bent conductor can be effectively folded; in addition, the first and second insulating flat wires have a larger width and a smaller thickness, and the foldability can be improved.

In the application, as the integrated rat-proof shell is designed, the central cavity 150 is rhombic or parallelogram, the optical fiber ribbon can be just placed, the space of the central cavity is fully utilized, and the central cavity can be basically filled, so that the optical fiber density of the product is higher; the insulation flat wire/insulation lead is positioned in the cavity outside the ribbon accommodation part, so that optical/electrical isolation is realized, the insulation flat wire/insulation lead can be taken and placed by slightly pulling the first side wall body and the fourth side wall body, parallel edges can be conveniently cut and the optical ribbon can be taken and placed after the insulation flat wire/insulation lead is taken out, the optical ribbon is positioned in the center, and most parts of the optical ribbon are protected by the double protection of the side wall body and the parallel edges; in addition, due to the existence of the first accommodating cavity, the second accommodating cavity, the third accommodating cavity and the fourth accommodating cavity, the power transmission channel is actually lengthened, so that the heat dissipation of power generation is faster, and the heat influence on light transmission is smaller; in the structure of embodiment 2 of the present application, the insulation flat wire/insulation lead is not placed in the first and third accommodating cavities, so that the heat dissipation effect is better, and the insulation flat wire/insulation lead does not escape; the presence of the wall-protecting body in embodiment 4 also defines the position of the insulated flat wire/insulated conductor; in this application, the special construction of protection against rodents casing for the diameter of product is littleer, space utilization is higher, compares the optical cable in YD/T981, and the same specification can reduce more than 25%, so greatly saved the cost.

In this application, protection against rodents casing structure as an organic whole, and can adopt metal or alloy or protection against rodents combined material to make, and to the optic fibre bring, whole protection against rodents casing is to having had double-deck protection, so protection against rodents effect is more excellent.

The solutions of the embodiments 5 to 8 in this application further increase the density of the optical fiber ribbon, and actually, more rat-proof cable cores can be adopted, and those skilled in the art can implement and expand the optical fiber ribbon without creative work under the concept of the invention.

Therefore, the invention has the following main beneficial effects: the structure is more compact, the external diameter is smaller, the cost is lower, the inspection and the construction are more convenient, the structure is more stable and reliable, the heat dissipation effect is higher, the fiber core density is larger, and the influence of electric heating on optical transmission is smaller.

The above-mentioned embodiments are merely preferred technical solutions of the present invention, and should not be construed as limiting the present invention. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.

Claims

1. The utility model provides a protection against rodents optical cable has protection against rodents cable core (1), cladding protective layer (2) outside the protection against rodents cable core, outer jacket (3) outside being located the protective layer, its characterized in that: the rat-proof cable core (1) is in a convex hexagonal prism shape, all the edges are on the same cylindrical surface, the rat-proof cable core (1) is composed of a rat-proof shell, a plurality of optical fiber ribbons (11), a first insulation flat wire (12) and a second insulation flat wire (13), the optical fiber ribbons (11) are composed of a plurality of optical fibers (111) and coating layers (112) coating all the optical fibers, the first insulation flat wire (12) is composed of a first bent conductor (121) and a first insulation layer (122) coating the first bent conductor, and the second insulation flat wire (13) is composed of a second bent conductor (131) and a second insulation layer (132) coating the second bent conductor; the rat-proof shell is composed of an optical fiber ribbon accommodating part, a first sidewall body (141), a second sidewall body (142), a third sidewall body (143), a fourth sidewall body (144), a fifth sidewall body (145) and a sixth sidewall body (146), and is of an integrated structure; the optical fiber ribbon accommodating component is composed of a first parallel edge (151), a second parallel edge (152), a third parallel edge (153) and a fourth parallel edge (154), one end of the first parallel edge (151) is connected with the other end of the second parallel edge (152), one end of the second parallel edge (152) is connected with the other end of the third parallel edge (153), one end of the third parallel edge (153) is connected with the other end of the fourth parallel edge (154), one end of the fourth parallel edge (154) is connected with the other end of the first parallel edge (151), an internal space defined by the first parallel edge (151), the second parallel edge (152), the third parallel edge (153) and the fourth parallel edge (154) is a central cavity (150), the central cavity (150) is in a diamond shape, the first parallel edge (151) is parallel to the third parallel edge (153), and the second parallel edge (152) is parallel to the fourth parallel edge (154); the other end of the first sidewall body (141) is connected with one end of the second sidewall body (142), the other end of the second sidewall body (142) is connected with one end of the third sidewall body (143), the other end of the third sidewall body (143) is connected with one end of the first parallel edge (151), the first sidewall body (141) is positioned right above the fourth parallel edge (154) and is parallel to the fourth parallel edge, the second sidewall body (142) is positioned right above the first parallel edge (151) and is parallel to the first parallel edge, a first accommodating cavity (161) is formed between the first sidewall body (141) and the fourth parallel edge (154), a second accommodating cavity (162) is formed between the second sidewall body (142) and the first parallel edge (151), the first accommodating cavity (161) is communicated with the second accommodating cavity (162), one end of the first sidewall body (141) is not contacted with the other end of the fourth parallel edge (154) and forms a first opening (160), an included angle formed by the first parallel edge (151) and the fourth parallel edge (154) is positioned right below an included angle formed by the first side wall body (141) and the second side wall body (142); the other end of the fourth side wall body (144) is connected with one end of the fifth side wall body (145), the other end of the fifth side wall body (145) is connected with one end of the sixth side wall body (146), the other end of the sixth side wall body (146) is connected with one end of the third parallel edge (153), the fourth side wall body (144) is positioned under the second parallel edge (152) and is parallel to the second parallel edge, the fifth side wall body (145) is positioned under the third parallel edge (153) and is parallel to the third parallel edge, a third containing cavity (171) is formed between the fourth side wall body (144) and the second parallel edge (152), a fourth containing cavity (172) is formed between the fifth side wall body (145) and the third parallel edge (153), the third containing cavity (171) is communicated with the fourth containing cavity (172), one end of the fourth side wall body (144) is not contacted with the other end of the second parallel edge (152) and forms a second opening (170), the included angle formed by the second parallel edge (152) and the third parallel edge (153) is right above the included angle formed by the fourth side wall body (144) and the fifth side wall body (145); the outer surface of the third sidewall body (143) and the surface of one end of the fourth sidewall body (144) are in the same plane, and the outer surface of the sixth sidewall body (146) and the surface of one end of the first sidewall body (141) are in the same plane; a plurality of optical fiber ribbons (11) are distributed in the central cavity (150) in a staggered and laminated mode of adjacent layers, the first insulation flat wires (12) are placed in the first accommodating cavity (161) and the second accommodating cavity (162) after being bent, and the second insulation flat wires (13) are placed in the third accommodating cavity (171) and the fourth accommodating cavity (172) after being bent.

2. The utility model provides a protection against rodents optical cable has protection against rodents cable core (1), cladding protective layer (2) outside the protection against rodents cable core, outer jacket (3) outside being located the protective layer, its characterized in that: the rat-proof cable core (1) is in a convex hexagonal prism shape, all the edges are on the same cylindrical surface, the rat-proof cable core (1) is composed of a rat-proof shell, a plurality of optical fiber ribbons (11) and a plurality of insulated wires (18), the optical fiber ribbons (11) are composed of a plurality of optical fibers (111) and coating layers (112) coating all the optical fibers, and the insulated wires (18) are composed of electric conductors (181) and insulating outer sleeves (182) coating the electric conductors; the rat-proof shell is composed of an optical fiber ribbon accommodating part, a first sidewall body (141), a second sidewall body (142), a third sidewall body (143), a fourth sidewall body (144), a fifth sidewall body (145) and a sixth sidewall body (146), and is of an integrated structure; the optical fiber ribbon accommodating component is composed of a first parallel edge (151), a second parallel edge (152), a third parallel edge (153) and a fourth parallel edge (154), one end of the first parallel edge (151) is connected with the other end of the second parallel edge (152), one end of the second parallel edge (152) is connected with the other end of the third parallel edge (153), one end of the third parallel edge (153) is connected with the other end of the fourth parallel edge (154), one end of the fourth parallel edge (154) is connected with the other end of the first parallel edge (151), an internal space surrounded by the first parallel edge (151), the second parallel edge (152), the third parallel edge (153) and the fourth parallel edge (154) is a central cavity (150), the first parallel edge (151) is parallel to the third parallel edge (153), and the second parallel edge (152) is parallel to the fourth parallel edge (154); the other end of the first sidewall body (141) is connected with one end of the second sidewall body (142), the other end of the second sidewall body (142) is connected with one end of the third sidewall body (143), the other end of the third sidewall body (143) is connected with one end of the first parallel edge (151), the first sidewall body (141) is positioned right above the fourth parallel edge (154) and is parallel to the fourth parallel edge, the second sidewall body (142) is positioned right above the first parallel edge (151) and is parallel to the first parallel edge, a first accommodating cavity (161) is formed between the first sidewall body (141) and the fourth parallel edge (154), a second accommodating cavity (162) is formed between the second sidewall body (142) and the first parallel edge (151), the first accommodating cavity (161) is communicated with the second accommodating cavity (162), one end of the first sidewall body (141) is connected with the other end of the first sidewall body (1411), and a first opening (160) is formed between one end of the first sidewall body (1411) and the other end of the fourth parallel edge (154), an included angle formed by the first parallel edge (151) and the fourth parallel edge (154) is positioned right below an included angle formed by the first side wall body (141) and the second side wall body (142); the other end of the fourth side wall body (144) is connected with one end of the fifth side wall body (145), the other end of the fifth side wall body (145) is connected with one end of the sixth side wall body (146), the other end of the sixth side wall body (146) is connected with one end of the third parallel edge (153), the fourth side wall body (144) is positioned under the second parallel edge (152) and is parallel to the second parallel edge, the fifth side wall body (145) is positioned under the third parallel edge (153) and is parallel to the third parallel edge, a third accommodating cavity (171) is formed between the fourth side wall body (144) and the second parallel edge (152), a fourth accommodating cavity (172) is formed between the fifth side wall body (145) and the third parallel edge (153), the third accommodating cavity (171) is communicated with the fourth accommodating cavity (172), one end of the fourth side wall body (144) is connected with the other end of the second wall protecting body (1441), and a second opening (170) is formed between one end of the second wall protecting body (1441) and the other end of the second parallel edge (152), the included angle formed by the second parallel edge (152) and the third parallel edge (153) is right above the included angle formed by the fourth side wall body (144) and the fifth side wall body (145); the outer surface of the first sidewall protection body (1411) and the outer surface of the sixth sidewall body (146) are in the same plane, and the outer surface of the second sidewall protection body (1441) and the outer surface of the third sidewall body (143) are in the same plane; a plurality of optical fiber ribbons (11) are distributed in the central cavity (150) in a staggered and laminated mode of adjacent layers, and a plurality of insulated conductors (18) are arranged in the first accommodating cavity, the second accommodating cavity, the third accommodating cavity and the fourth accommodating cavity.

3. The utility model provides a protection against rodents optical cable has protection against rodents cable core (1), cladding protective layer (2) outside the protection against rodents cable core, outer jacket (3) outside being located the protective layer, its characterized in that: the rat-proof cable core (1) is in a convex hexagonal prism shape, all the edges are on the same cylindrical surface, the rat-proof cable core (1) is composed of a rat-proof shell, a plurality of optical fiber ribbons (11), a first insulation flat wire (12) and a second insulation flat wire (13), the optical fiber ribbons (11) are composed of a plurality of optical fibers (111) and coating layers (112) coating all the optical fibers, the first insulation flat wire (12) is composed of a first bent conductor (121) and a first insulation layer (122) coating the first bent conductor, and the second insulation flat wire (13) is composed of a second bent conductor (131) and a second insulation layer (132) coating the second bent conductor; the rat-proof shell is composed of an optical fiber ribbon accommodating part, a first sidewall body (141), a second sidewall body (142), a third sidewall body (143), a fourth sidewall body (144), a fifth sidewall body (145) and a sixth sidewall body (146), and is of an integrated structure; the optical fiber ribbon accommodating component is composed of a first parallel edge (151), a second parallel edge (152), a third parallel edge (153) and a fourth parallel edge (154), one end of the first parallel edge (151) is connected with the other end, close to the second parallel edge (152), of the second parallel edge (152), one end of the second parallel edge (153) is connected with the other end of the third parallel edge (153), one end of the third parallel edge (153) is connected with the other end, close to the second end, of the fourth parallel edge (154), one end of the fourth parallel edge (154) is connected with the other end of the first parallel edge (151), an inner space defined by the first parallel edge (151), the second parallel edge (152), the third parallel edge (153) and the fourth parallel edge (154) is a central cavity (150), the first parallel edge (151) is parallel to the third parallel edge (153), and the second parallel edge (152) is parallel to the fourth parallel edge (154); the other end of the first sidewall body (141) is connected with one end of the second sidewall body (142), the other end of the second sidewall body (142) is connected with one end of the third sidewall body (143), the other end of the third sidewall body (143) is connected with the other end of the second parallel edge (152), the first sidewall body (141) is positioned right above the fourth parallel edge (154) and is parallel to the fourth parallel edge, the second sidewall body (142) is positioned right above the first parallel edge (151) and is parallel to the first parallel edge, a first accommodating cavity (161) is formed between the first sidewall body (141) and the fourth parallel edge (154), a second accommodating cavity (162) is formed between the second sidewall body (142) and the first parallel edge (151), the first accommodating cavity (161) is communicated with the second accommodating cavity (162), the height of the first accommodating cavity (161) is smaller than that of the second accommodating cavity (162), the other end of the first sidewall body (141) is not contacted with the other end of the fourth parallel edge (154) and forms a first opening (160), an included angle formed by the first parallel edge (151) and the fourth parallel edge (154) is positioned at the left lower part of an included angle formed by the first sidewall body (141) and the second sidewall body (142); the other end of the fourth side wall body (144) is connected with one end of the fifth side wall body (145), the other end of the fifth side wall body (145) is connected with one end of the sixth side wall body (146), the other end of the sixth side wall body (146) is connected with the other end of the fourth parallel edge (154), the fourth side wall body (144) is positioned under the second parallel edge (152) and is parallel to the second parallel edge, the fifth side wall body (145) is positioned under the third parallel edge (153) and is parallel to the third parallel edge, a third containing cavity (171) is formed between the fourth side wall body (144) and the second parallel edge (152), a fourth containing cavity (172) is formed between the fifth side wall body (145) and the third parallel edge (153), the third containing cavity (171) is communicated with the fourth containing cavity (172), the third containing cavity (171) is lower than the fourth containing cavity (172), one end of the fourth side wall body (144) is not contacted with the other end of the second parallel edge (152) and forms a second opening (170), the included angle formed by the second parallel edge (152) and the third parallel edge (153) is positioned at the upper left of the included angle formed by the fourth side wall body (144) and the fifth side wall body (145); the outer surface of the third sidewall body (143) and the surface of one end of the fourth sidewall body (144) are in the same plane, and the outer surface of the sixth sidewall body (146) and the surface of one end of the first sidewall body (141) are in the same plane; a plurality of optical fiber ribbons (11) are distributed in the central cavity (150) in a staggered and laminated mode of adjacent layers, the first flat insulating wires (12) are bent and then placed in the first accommodating cavity (161) and the second accommodating cavity (162), and the height of the first flat insulating wires (12) in the first accommodating cavity (161) is smaller than that of the first flat insulating wires (12) in the second accommodating cavity (162); the second insulation flat wire (13) is bent and placed in the third containing cavity (171) and the fourth containing cavity (172), and the height of the second insulation flat wire (12) in the third containing cavity (171) is smaller than that of the second insulation flat wire (12) in the fourth containing cavity (172).

4. The utility model provides a protection against rodents optical cable has protection against rodents cable core (1), cladding protective layer (2) outside the protection against rodents cable core, outer jacket (3) outside being located the protective layer, its characterized in that: the rat-proof cable core (1) is in a convex hexagonal prism shape, all the edges are on the same cylindrical surface, the rat-proof cable core (1) is composed of a rat-proof shell, a plurality of optical fiber ribbons (11) and a plurality of insulated wires (18), the optical fiber ribbons (11) are composed of a plurality of optical fibers (111) and coating layers (112) coating all the optical fibers, and the insulated wires (18) are composed of electric conductors (181) and insulating outer sleeves (182) coating the electric conductors; the rat-proof shell is composed of an optical fiber ribbon accommodating part, a first sidewall body (141), a second sidewall body (142), a third sidewall body (143), a fourth sidewall body (144), a fifth sidewall body (145) and a sixth sidewall body (146), and is of an integrated structure; the optical fiber ribbon accommodating component is composed of a first parallel edge (151), a second parallel edge (152), a third parallel edge (153) and a fourth parallel edge (154), one end of the first parallel edge (151) is connected with the other end, close to the second parallel edge (152), of the second parallel edge (152), one end of the second parallel edge (153) is connected with the other end of the third parallel edge (153), one end of the third parallel edge (153) is connected with the other end, close to the second end, of the fourth parallel edge (154), one end of the fourth parallel edge (154) is connected with the other end of the first parallel edge (151), an inner space defined by the first parallel edge (151), the second parallel edge (152), the third parallel edge (153) and the fourth parallel edge (154) is a central cavity (150), the first parallel edge (151) is parallel to the third parallel edge (153), and the second parallel edge (152) is parallel to the fourth parallel edge (154); the other end of the first sidewall body (141) is connected with one end of the second sidewall body (142), the other end of the second sidewall body (142) is connected with one end of the third sidewall body (143), the other end of the third sidewall body (143) is connected with the other end of the second parallel edge (152), the first sidewall body (141) is positioned right above the fourth parallel edge (154) and is parallel to the fourth parallel edge, the second sidewall body (142) is positioned right above the first parallel edge (151) and is parallel to the first parallel edge, a first accommodating cavity (161) is formed between the first sidewall body (141) and the fourth parallel edge (154), a second accommodating cavity (162) is formed between the second sidewall body (142) and the first parallel edge (151), the first accommodating cavity (161) is communicated with the second accommodating cavity (162), the height of the first accommodating cavity (161) is smaller than that of the second accommodating cavity (162), one end of the first sidewall body (141) is connected with the other end of the first sidewall body (1411), a first opening (160) is formed between one end of the first sidewall protection body (1411) and the other end of the fourth parallel edge (154), and an included angle formed by the first parallel edge (151) and the fourth parallel edge (154) is positioned below and to the left of an included angle formed by the first sidewall body (141) and the second sidewall body (142); the other end of the fourth side wall body (144) is connected with one end of the fifth side wall body (145), the other end of the fifth side wall body (145) is connected with one end of the sixth side wall body (146), the other end of the sixth side wall body (146) is connected with the other end of the fourth parallel edge (154), the fourth side wall body (144) is positioned under the second parallel edge (152) and is parallel to the second parallel edge, the fifth side wall body (145) is positioned under the third parallel edge (153) and is parallel to the third parallel edge, a third containing cavity (171) is formed between the fourth side wall body (144) and the second parallel edge (152), a fourth containing cavity (172) is formed between the fifth side wall body (145) and the third parallel edge (153), the third containing cavity (171) is communicated with the fourth containing cavity (172), the height of the third containing cavity (171) is smaller than that of the fourth containing cavity (172), one end of the fourth side wall body (144) is connected with the other end 1441 of the second wall protection body, a second opening (170) is formed between one end of the second wall protecting body (1441) and the other end of the second parallel edge (152), and an included angle formed by the second parallel edge (152) and the third parallel edge (153) is positioned above and to the left of an included angle formed by the fourth side wall body (144) and the fifth side wall body (145); a plurality of optical fiber ribbons (11) are distributed in the central cavity (150) in a staggered and laminated mode of adjacent layers, the outer surface of the first sidewall protection body (1411) and the outer surface of the sixth sidewall protection body (146) are in the same plane, and the outer surface of the second sidewall protection body (1441) and the outer surface of the third sidewall protection body (143) are in the same plane; the first accommodating cavity, the second accommodating cavity, the third accommodating cavity and the fourth accommodating cavity are all provided with a plurality of insulated wires (18).

5. The utility model provides a protection against rodents optical cable has protection against rodents cable core (1), cladding protective layer (2) outside the protection against rodents cable core, outer jacket (3) outside being located the protective layer, its characterized in that: the rat-proof cable core (1) is in a convex hexagonal prism shape, all the edges are on the same cylindrical surface, the rat-proof cable core (1) is composed of a rat-proof shell, a plurality of optical fiber ribbons (11) and a plurality of insulated wires (18), the optical fiber ribbons (11) are composed of a plurality of optical fibers (111) and coating layers (112) coating all the optical fibers, and the insulated wires (18) are composed of electric conductors (181) and insulating outer sleeves (182) coating the electric conductors; the rat-proof shell is composed of an optical fiber ribbon accommodating part, a first sidewall body (141), a second sidewall body (142), a third sidewall body (143), a fourth sidewall body (144), a fifth sidewall body (145) and a sixth sidewall body (146), and is of an integrated structure; the optical fiber ribbon accommodating component is composed of a first parallel edge (151), a second parallel edge (152), a third parallel edge (153) and a fourth parallel edge (154), one end of the first parallel edge (151) is connected with the other end, close to the second parallel edge (152), of the second parallel edge (152), one end of the second parallel edge (153) is connected with the other end of the third parallel edge (153), one end of the third parallel edge (153) is connected with the other end, close to the second end, of the fourth parallel edge (154), one end of the fourth parallel edge (154) is connected with the other end of the first parallel edge (151), an inner space defined by the first parallel edge (151), the second parallel edge (152), the third parallel edge (153) and the fourth parallel edge (154) is a central cavity (150), the first parallel edge (151) is parallel to the third parallel edge (153), and the second parallel edge (152) is parallel to the fourth parallel edge (154); the other end of the first sidewall body (141) is connected with one end of the second sidewall body (142), the other end of the second sidewall body (142) is connected with one end of the third sidewall body (143), the other end of the third sidewall body (143) is connected with the other end of the second parallel edge (152), the first sidewall body (141) is positioned right above the fourth parallel edge (154) and is parallel to the fourth parallel edge, the second sidewall body (142) is positioned right above the first parallel edge (151) and is parallel to the first parallel edge, a first accommodating cavity (161) is formed between the first sidewall body (141) and the fourth parallel edge (154), a second accommodating cavity (162) is formed between the second sidewall body (142) and the first parallel edge (151), the first accommodating cavity (161) is communicated with the second accommodating cavity (162), the height of the first accommodating cavity (161) is smaller than that of the second accommodating cavity (162), one end of the first sidewall body (141) is connected with the other end of the first sidewall body (1411), a first opening (160) is formed between one end of the first sidewall protection body (1411) and the other end of the fourth parallel edge (154), and an included angle formed by the first parallel edge (151) and the fourth parallel edge (154) is positioned below and to the left of an included angle formed by the first sidewall body (141) and the second sidewall body (142); the other end of the fourth side wall body (144) is connected with one end of the fifth side wall body (145), the other end of the fifth side wall body (145) is connected with one end of the sixth side wall body (146), the other end of the sixth side wall body (146) is connected with the other end of the fourth parallel edge (154), the fourth side wall body (144) is positioned under the second parallel edge (152) and is parallel to the second parallel edge, the fifth side wall body (145) is positioned under the third parallel edge (153) and is parallel to the third parallel edge, a third containing cavity (171) is formed between the fourth side wall body (144) and the second parallel edge (152), a fourth containing cavity (172) is formed between the fifth side wall body (145) and the third parallel edge (153), the third containing cavity (171) is communicated with the fourth containing cavity (172), the height of the third containing cavity (171) is smaller than that of the fourth containing cavity (172), one end of the fourth side wall body (144) is connected with the other end 1441 of the second wall protection body, a second opening (170) is formed between one end of the second wall protecting body (1441) and the other end of the second parallel edge (152), and an included angle formed by the second parallel edge (152) and the third parallel edge (153) is positioned above and to the left of an included angle formed by the fourth side wall body (144) and the fifth side wall body (145); a plurality of optical fiber ribbons (11) are distributed in the central cavity (150) in a staggered and laminated mode of adjacent layers, the outer surface of the first sidewall protection body (1411) and the outer surface of the sixth sidewall protection body (146) are in the same plane, and the outer surface of the second sidewall protection body (1441) and the outer surface of the third sidewall protection body (143) are in the same plane; the second accommodating cavity and the fourth accommodating cavity are both provided with a plurality of insulated conducting wires (18).

6. The ratproof optical cable according to any one of claims 1 to 5, wherein: the ratproof shell is made of ratproof composite material or steel or iron or aluminum or copper or alloy.

7. The ratproof optical cable according to any one of claims 1 to 5, wherein: the protective layer is made of glass fiber reinforced plastic, water-blocking tape, non-woven fabric, polyester tape, mica tape or steel tape.

8. The ratproof optical cable according to any one of claims 1 to 5, wherein: the outer protective layer is made of ratproof plastic.

9. The ratproof optical cable according to any one of claims 1 to 5, wherein: the type of the optical fiber is G.652, G.653, G.654, G.655, G.656, G.657, A1a, A1b, A1c, A1d or A1 e.

10. The utility model provides a protection against rodents optical cable has protection against rodents cable core (1), its characterized in that: the rat-proof cable core (1) is in a convex hexagonal prism shape, all the edges are on the same cylindrical surface, the rat-proof cable core (1) is composed of a rat-proof shell, a plurality of optical fiber ribbons (11), a first insulation flat wire (12) and a second insulation flat wire (13), the optical fiber ribbons (11) are composed of a plurality of optical fibers (111) and coating layers (112) coating all the optical fibers, the first insulation flat wire (12) is composed of a first bent conductor (121) and a first insulation layer (122) coating the first bent conductor, and the second insulation flat wire (13) is composed of a second bent conductor (131) and a second insulation layer (132) coating the second bent conductor; the rat-proof shell is composed of an optical fiber ribbon accommodating part, a first sidewall body (141), a second sidewall body (142), a third sidewall body (143), a fourth sidewall body (144), a fifth sidewall body (145) and a sixth sidewall body (146), and is of an integrated structure; the optical fiber ribbon accommodating component is composed of a first parallel edge (151), a second parallel edge (152), a third parallel edge (153) and a fourth parallel edge (154), one end of the first parallel edge (151) is connected with the other end of the second parallel edge (152), one end of the second parallel edge (152) is connected with the other end of the third parallel edge (153), one end of the third parallel edge (153) is connected with the other end of the fourth parallel edge (154), one end of the fourth parallel edge (154) is connected with the other end of the first parallel edge (151), an internal space surrounded by the first parallel edge (151), the second parallel edge (152), the third parallel edge (153) and the fourth parallel edge (154) is a central cavity (150), the first parallel edge (151) is parallel to the third parallel edge (153), and the second parallel edge (152) is parallel to the fourth parallel edge (154); the other end of the first sidewall body (141) is connected with one end of the second sidewall body (142), the other end of the second sidewall body (142) is connected with one end of the third sidewall body (143), the other end of the third sidewall body (143) is connected with one end of the first parallel edge (151), the first sidewall body (141) is positioned right above the fourth parallel edge (154) and is parallel to the fourth parallel edge, the second sidewall body (142) is positioned right above the first parallel edge (151) and is parallel to the first parallel edge, a first accommodating cavity (161) is formed between the first sidewall body (141) and the fourth parallel edge (154), a second accommodating cavity (162) is formed between the second sidewall body (142) and the first parallel edge (151), the first accommodating cavity (161) is communicated with the second accommodating cavity (162), one end of the first sidewall body (141) is not contacted with the other end of the fourth parallel edge (154) and forms a first opening (160), an included angle formed by the first parallel edge (151) and the fourth parallel edge (154) is positioned right below an included angle formed by the first side wall body (141) and the second side wall body (142); the other end of the fourth side wall body (144) is connected with one end of the fifth side wall body (145), the other end of the fifth side wall body (145) is connected with one end of the sixth side wall body (146), the other end of the sixth side wall body (146) is connected with one end of the third parallel edge (153), the fourth side wall body (144) is positioned under the second parallel edge (152) and is parallel to the second parallel edge, the fifth side wall body (145) is positioned under the third parallel edge (153) and is parallel to the third parallel edge, a third containing cavity (171) is formed between the fourth side wall body (144) and the second parallel edge (152), a fourth containing cavity (172) is formed between the fifth side wall body (145) and the third parallel edge (153), the third containing cavity (171) is communicated with the fourth containing cavity (172), one end of the fourth side wall body (144) is not contacted with the other end of the second parallel edge (152) and forms a second opening (170), the included angle formed by the second parallel edge (152) and the third parallel edge (153) is right above the included angle formed by the fourth side wall body (144) and the fifth side wall body (145); the outer surface of the third sidewall body (143) and the surface of one end of the fourth sidewall body (144) are in the same plane, and the outer surface of the sixth sidewall body (146) and the surface of one end of the first sidewall body (141) are in the same plane; a plurality of optical fiber ribbons (11) are distributed in the central cavity (150) in a staggered and laminated mode of adjacent layers, the first insulation flat wires (12) are placed in the first accommodating cavity (161) and the second accommodating cavity (162) after being bent, and the second insulation flat wires (13) are placed in the third accommodating cavity (171) and the fourth accommodating cavity (172) after being bent.