CN113640932B - Central beam tube type optical cable and central beam tube type ribbon optical cable - Google Patents
Central beam tube type optical cable and central beam tube type ribbon optical cable Download PDFInfo
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- CN113640932B CN113640932B CN202111024204.5A CN202111024204A CN113640932B CN 113640932 B CN113640932 B CN 113640932B CN 202111024204 A CN202111024204 A CN 202111024204A CN 113640932 B CN113640932 B CN 113640932B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4403—Optical cables with ribbon structure
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/4436—Heat resistant
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Abstract
The invention belongs to the technical field of communication optical cables, and discloses a central beam tube type optical cable which is provided with a plurality of accommodating parts, a plurality of reinforcing parts, a central loose tube, a plurality of optical fibers and an outer sheath, wherein the optical fibers are positioned in the central loose tube; the method is characterized in that: the accommodating part is of an integrated structure and has a special structure; the upper surface of the accommodating part is attached to the outer wall of the central loose tube, and all the accommodating parts cover the periphery of the outer wall of the central loose tube. The invention also discloses a central beam tube type ribbon cable. The invention has the following main beneficial effects: the structure is simple, the manufacture is easy, the stripping is easy, the heat dissipation is easy, the communication density is higher, the product quality is more stable and reliable, and the production equipment investment is less.
Description
Technical Field
The invention belongs to the technical field of communication optical cables, and particularly relates to a central beam tube type optical cable and a central beam tube type ribbon optical cable.
Background
In the prior art, a central tube type optical cable mainly has several structures: one of the products is GYXTW, GYXTW and extension products, which is composed of a central beam tube, a reinforcing band outside the central beam tube, a reinforcing member outside the reinforcing band, and a sheath covering the reinforcing band and the reinforcing member, wherein the reinforcing member is located in the sheath and is not easy to peel off, when the reinforcing member is used for transmitting power simultaneously, the corresponding technical problems also exist, the electrical heating greatly affects the optical fiber communication, and in addition, in order to reduce the cost, a flat reinforcing member such as CN200950171U is also adopted. The other is GYXTS, GYXTA and extension products, which consists of a central beam tube, a plurality of twisted reinforcements outside the central beam tube, a protective belt outside the reinforcements and a sheath covering the protective belt, the structure has strong tensile, compression and impact resistance, but needs expensive steel wire twisting equipment, occupies large space, is troublesome to maintain, needs production personnel, needs power supply, needs illumination and the like, is difficult to recover cost in a short time for production enterprises, and invisibly increases the cost of products and reduces competitiveness; and in the process of twisting production, the extremely fine steel wires can be twisted and dislocated, which is extremely difficult to find in production and inspection, but buries a great quality defect in the product. Therefore, the industry is looking to solve the above problems.
Disclosure of Invention
In order to solve the above problems, the present invention discloses a central tube optical cable and a central tube optical ribbon cable, which are implemented by the following technical solutions.
A central beam tube type optical cable is provided with a plurality of accommodating parts, a plurality of reinforcing parts, a central loose tube, a plurality of optical fibers and an outer sheath, wherein the optical fibers are positioned in the central loose tube; the method is characterized in that: the accommodating part is composed of a first arc-shaped part, a connecting part, a second arc-shaped part, a first limiting part and a second limiting part, wherein the first arc-shaped part and the second arc-shaped part are both in the shape of circular arc cylinders, the connecting part is positioned between the first arc-shaped part and the second arc-shaped part and connects the first arc-shaped part and the second arc-shaped part together, the first limiting part extends from the right end of the first arc-shaped part to the direction of the second arc-shaped part, the right surface of the first limiting part is a plane and is in the same plane with the right surface of the second arc-shaped part, the upper end of the first limiting part is not in contact with the lower surface of the right end of the second arc-shaped part and forms a first opening, a first containing cavity is formed among the lower surface of the second arc-shaped part, the right surface of the connecting part, the upper surface of the first arc-shaped part and the left surface of the first limiting part, the first containing cavity is communicated with the first opening, the second limiting part extends from the left end of the first arc-shaped part to the direction of the second arc-shaped part, the left surface of the second limiting part is a plane and is in the same plane with the left surface of the second arc-shaped part, the upper end of the second limiting part is not in contact with the lower surface of the left end of the second arc-shaped part and forms a second opening, a second containing cavity is formed among the lower surface of the second arc-shaped part, the left surface of the connecting part, the upper surface of the first arc-shaped part and the right surface of the second limiting part, and the second containing cavity is communicated with the second opening; the bending directions of the first arc-shaped part and the second arc-shaped part are the same, and the first arc-shaped part and the second arc-shaped part are both protruded downwards; the accommodating component is of an integrated structure; the first accommodating cavity and the second accommodating cavity are internally provided with reinforcing components, the reinforcing components are in shapes matched with the first accommodating cavity, and the reinforcing components are in shapes matched with the second accommodating cavity; the upper surface of the second arc-shaped part of each accommodating part is attached to the outer wall of the central loose tube, and the second arc-shaped parts of all the accommodating parts cover the periphery of the outer wall of the central loose tube.
The central beam tube type optical cable is characterized in that the accommodating component is made of plastic.
The central beam tube type optical cable is characterized in that the accommodating component is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free dense polyethylene or low-smoke low-halogen polyethylene or polyvinyl chloride or polytetrafluoroethylene or nylon or TPE or TPU or polypropylene.
A central tube optical cable as described above, wherein the material of the strength member is copper or aluminum or an alloy.
The central beam tube type optical cable is characterized in that the material of the reinforcing component is iron or glass fiber reinforced plastics.
The central tube bundle type optical cable is characterized in that the material of the central loose tube is polybutylene terephthalate or polypropylene or steel or iron or aluminum or copper.
The central beam tube type optical cable is characterized in that the type of the optical fiber is G.651 or G.652 or G.653 or G.654 or G.655 or G.656 or G.657 or A1a or A1b or A1c or A1d or A1e or OM1 or OM2 or OM3 or OM4.
The central beam tube type optical cable is characterized in that the outer sheath is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free dense polyethylene or low-smoke low-halogen polyethylene or polyvinyl chloride or polytetrafluoroethylene or nylon or TPE or TPU or polypropylene.
A central beam tube type ribbon optical cable, substantially the same as the above-mentioned central beam tube type optical cable, characterized in that a peripheral loose tube replaces a reinforcing member, a peripheral loose tube is provided in each of the first and second receiving chambers, and a plurality of light guide fibers are provided in the peripheral loose tube; each first accommodating cavity or each second accommodating cavity is internally provided with at least one surrounding loose sleeve; the second is: a plurality of optical fiber ribbons are stacked together in the central loose tube, each having a plurality of optical conductors therein.
The central beam tube type ribbon optical cable is characterized in that the peripheral loose tubes replace reinforcing parts, the peripheral loose tubes are arranged in the first accommodating cavity and the second accommodating cavity, and a plurality of light guide fibers are arranged in the peripheral loose tubes; each first accommodating cavity or each second accommodating cavity is internally provided with at least one surrounding loose sleeve; a central loose sleeve is omitted, and the upper surfaces of the second arc-shaped parts of all the accommodating parts form a central cavity; the central cavity has a plurality of optical fiber ribbons stacked together, each having a plurality of optical conductors therein.
The central tube type ribbon optical cable is characterized in that the material of the surrounding loose tube is polybutylene terephthalate or polypropylene or steel or iron or aluminum or copper.
The central beam tube type ribbon optical cable is characterized in that the type of the optical fiber is G.651 or G.652 or G.653 or G.654 or G.655 or G.656 or G.657 or A1a or A1b or A1c or A1d or A1e or OM1 or OM2 or OM3 or OM4.
The invention has the following main beneficial effects: the structure is simple, the manufacture is easy, the stripping is easy, the heat dissipation is easy, the communication density is higher, the product quality is more stable and reliable, and the production equipment investment is less.
Drawings
Fig. 1 is a schematic perspective view of a dissected segment of the example 1.
Fig. 2 is an enlarged cross-sectional structure diagram of fig. 1.
Fig. 3 is a schematic perspective view of a dissected segment of the receiving member used in fig. 1.
Fig. 4 is an enlarged cross-sectional view of fig. 3.
Fig. 5 is a schematic perspective view of a dissected segment of the example 2.
Fig. 6 is an enlarged cross-sectional view of fig. 5.
Fig. 7 is a perspective view of the receiving member used in fig. 5 after being dissected.
Fig. 8 is an enlarged cross-sectional view of fig. 7.
FIG. 9 is a schematic cross-sectional structure of example 3.
In order that those skilled in the art will more accurately and clearly understand and practice the present application, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which: 1-containing part, 2-reinforcing part, 3-central loose tube, 4-optical fiber, 5-outer sheath, 6-peripheral loose tube, 7-optical fiber, 8-optical fiber ribbon, 9-optical conductor, 11-first arc part, 12-connecting part, 13-second arc part, 111-first limiting part, 112-first containing cavity, 113-second limiting part, 114-second containing cavity, 115-first opening, 116-second opening.
Detailed Description
Examples 1
Referring to fig. 1 to 4, a central bundle tube type optical cable includes four accommodating parts 1, a plurality of reinforcing parts 2, a central loose tube 3, a plurality of optical fibers 4, and an outer sheath 5, where the optical fibers 4 are located in the central loose tube 3, the reinforcing parts 2 are located outside the central loose tube 3, the reinforcing parts 2 are located in the accommodating parts 1, the accommodating parts 1 are located outside the central loose tube 3, and the outer sheath 5 is located outside the accommodating parts 1; the method is characterized in that: the accommodating part 1 comprises a first arc-shaped part 11, a connecting part 12, a second arc-shaped part 13, a first limiting part 111 and a second limiting part 113, wherein the first arc-shaped part 11 and the second arc-shaped part 13 are both in the shape of circular arc cylinders, the connecting part 12 is positioned between the first arc-shaped part 11 and the second arc-shaped part 13 and connects the first arc-shaped part 11 and the second arc-shaped part 13 together, the first limiting part 111 extends from the right end of the first arc-shaped part 11 to the direction of the second arc-shaped part 13, the right surface of the first limiting part 111 is a plane, the right surface of the first limiting part 111 and the right surface of the second arc-shaped part 13 are in the same plane, the upper end of the first limiting part 111 is not in contact with the lower surface of the right end of the second arc-shaped part 13 and forms a first opening 115, a first accommodating cavity 112 is formed between the lower surface of the second arc-shaped part 13, the right surface of the connecting part 12, the upper surface of the first arc-shaped part 11 and the left surface of the first limiting part 111, the first accommodating cavity 112 is communicated with the first opening 115, the second limiting part 113 extends from the left end of the first arc-shaped part 11 to the direction of the second arc-shaped part 13, the left surface of the second limiting part 113 is a plane, the left surface of the second limiting part 113 and the left surface of the second arc-shaped part 13 are in the same plane, the upper end of the second limiting part 113 is not in contact with the lower surface of the left end of the second arc-shaped part 13 and forms a second opening 116, a second accommodating cavity 114 is formed between the lower surface of the second arc-shaped part 13, the left surface of the connecting part 12, the upper surface of the first arc-shaped part 11 and the right surface of the second limiting part 113, and the second accommodating cavity 114 is communicated with the second opening 116; the bending directions of the first arc-shaped part 11 and the second arc-shaped part 13 are the same, and in fig. 4, the first arc-shaped part 11 and the second arc-shaped part 13 are both convex downwards; the accommodating part 1 is of an integrated structure; the first accommodating cavity 112 and the second accommodating cavity 114 are both provided with the reinforcing component 2, the reinforcing component 2 is in a shape matched with the first accommodating cavity 112, and the reinforcing component 2 is in a shape matched with the second accommodating cavity 114; the upper surface of the second arc-shaped part 13 of the accommodating part 1 is attached to the outer wall of the central loose tube 3, and the second arc-shaped parts 13 of all the accommodating parts 1 cover the periphery of the outer wall of the central loose tube 3.
The central beam tube type optical cable is characterized in that the accommodating component is made of plastic.
Further, the central tube bundle type optical cable is characterized in that the material of the accommodating component is low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free dense polyethylene or low-smoke low-halogen polyethylene or polyvinyl chloride or polytetrafluoroethylene or nylon or TPE or TPU or polypropylene.
The central beam tube type optical cable is characterized in that the material of the reinforcing component is copper or aluminum or alloy, in this case, the optical-electrical composite cable is formed, and the reinforcing component can not only reinforce the optical cable but also realize power transmission.
The central beam tube type optical cable is characterized in that the reinforcing component is made of iron or glass fiber reinforced plastics, and the reinforcing component mainly plays a role in reinforcing tensile resistance, pressure resistance, impact resistance and the like.
The central tube bundle type optical cable is characterized in that the material of the central loose tube is polybutylene terephthalate or polypropylene or steel or iron or aluminum or copper.
The central beam tube type optical cable is characterized in that the type of the optical fiber is G.651 or G.652 or G.653 or G.654 or G.655 or G.656 or G.657 or A1a or A1b or A1c or A1d or A1e or OM1 or OM2 or OM3 or OM4.
The central beam tube type optical cable is characterized in that the outer sheath is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free dense polyethylene or low-smoke low-halogen polyethylene or polyvinyl chloride or polytetrafluoroethylene or nylon or TPE or TPU or polypropylene.
The central tube optical cable is characterized in that the number of the accommodating parts is not limited to four, the accommodating parts can be a plurality of, even only one, and only one accommodating part is annular, but the right surface of the first limiting part 111 is not connected with the left surface of the second limiting part 113, and a part of gaps are formed.
EXAMPLES example 2
Referring to fig. 5 to 8 and fig. 1 to 4, a center tube type optical fiber ribbon cable is substantially the same as embodiment 1 except that: one of them is: the first accommodating cavity 112 and the second accommodating cavity 114 are both provided with a surrounding loose tube 6, and a plurality of light guide fibers 7 are arranged in the surrounding loose tube 6; each first accommodating cavity or each second accommodating cavity is internally provided with at least one surrounding loose sleeve; the second is: the central loose tube does not exist, and the upper surfaces of the second arc-shaped parts 13 of all the accommodating parts 1 form a central cavity; within the central cavity are a plurality of optical fiber ribbons 8 stacked together, each ribbon 8 having a plurality of optical conductors 9 therein.
Namely: a central beam tube type ribbon optical cable is provided with a plurality of accommodating parts 1, a plurality of peripheral loose tubes 6, a plurality of light guide fibers 7, a plurality of optical fiber ribbons 8, a plurality of light conductors 9 and an outer sheath 5, wherein the light guide fibers 7 are positioned in the peripheral loose tubes 6, the light conductors 9 are positioned in the optical fiber ribbons 8, the accommodating parts 1 are positioned outside the optical fiber ribbons 8, and the outer sheath 5 is positioned outside the accommodating parts 1; the method is characterized in that: the accommodating part 1 comprises a first arc-shaped part 11, a connecting part 12, a second arc-shaped part 13, a first limiting part 111 and a second limiting part 113, wherein the first arc-shaped part 11 and the second arc-shaped part 13 are both in the shape of circular arc cylinders, the connecting part 12 is positioned between the first arc-shaped part 11 and the second arc-shaped part 13 and connects the first arc-shaped part 11 and the second arc-shaped part 13 together, the first limiting part 111 extends from the right end of the first arc-shaped part 11 to the direction of the second arc-shaped part 13, the right surface of the first limiting part 111 is a plane, the right surface of the first limiting part 111 and the right surface of the second arc-shaped part 13 are in the same plane, the upper end of the first limiting part 111 is not in contact with the lower surface of the right end of the second arc-shaped part 13 and forms a first opening 115, a first containing cavity 112 is formed between the lower surface of the second arc-shaped part 13, the right surface of the connecting part 12, the upper surface of the first arc-shaped part 11 and the left surface of the first limiting part 111, the first containing cavity 112 is communicated with the first opening 115, the second limiting part 113 extends from the left end of the first arc-shaped part 11 to the direction of the second arc-shaped part 13, the left surface of the second limiting part 113 is a plane, the left surface of the second limiting part 113 and the left surface of the second arc-shaped part 13 are in the same plane, the upper end of the second limiting part 113 and the lower surface of the left end of the second arc-shaped part 13 are not in contact and form a second opening 116, a second containing cavity 114 is formed between the lower surface of the second arc-shaped part 13, the left surface of the connecting part 12, the upper surface of the first arc-shaped part 11 and the right surface of the second limiting part 113, and the second containing cavity 114 is communicated with the second opening 116; the bending directions of the first arc-shaped part 11 and the second arc-shaped part 13 are the same, and the first arc-shaped part 11 and the second arc-shaped part 13 are both convex downwards; the accommodating part 1 is of an integrated structure; each first accommodating cavity 112 or each second accommodating cavity 114 is internally provided with at least one surrounding loose tube 6; the upper surfaces of the second arc-shaped parts 13 of all the accommodating parts 1 enclose a cylindrical central cavity; a plurality of optical fiber ribbons 8 are stacked together and positioned within the central cavity.
EXAMPLE 3
Referring to fig. 9 and fig. 1 to 8, a center tube type optical fiber ribbon cable is substantially the same as embodiment 1 except that: one of them is: the reinforcing component 2 is not arranged, the first accommodating cavity 112 and the second accommodating cavity 114 are both internally provided with peripheral loose tubes 6, and the peripheral loose tubes 6 are internally provided with a plurality of light guide fibers 7; each first accommodating cavity or each second accommodating cavity is internally provided with at least one surrounding loose sleeve 6; the second is: the central loose tube 3 has a plurality of optical fiber ribbons 8 stacked together therein, and each optical fiber ribbon 8 has a plurality of optical conductors 9 therein.
Namely: a central beam tube type optical cable is provided with four accommodating parts 1, a central loose tube 3, a plurality of peripheral loose tubes 6, a plurality of light guide fibers 7, a plurality of optical fiber ribbons 8, a plurality of light conductors 9 and an outer sheath 5, wherein the light guide fibers 7 are positioned in the peripheral loose tubes 6, the light conductors 9 are positioned in the optical fiber ribbons 8, the optical fiber ribbons 8 are positioned in the central loose tube 3, the peripheral loose tubes 6 are positioned outside the central loose tube 3, the accommodating parts 1 are positioned outside the central loose tube 3, and the outer sheath 5 is positioned outside the accommodating parts 1; the method is characterized in that: the accommodating part 1 comprises a first arc-shaped part 11, a connecting part 12, a second arc-shaped part 13, a first limiting part 111 and a second limiting part 113, wherein the first arc-shaped part 11 and the second arc-shaped part 13 are both in the shape of circular arc cylinders, the connecting part 12 is positioned between the first arc-shaped part 11 and the second arc-shaped part 13 and connects the first arc-shaped part 11 and the second arc-shaped part 13 together, the first limiting part 111 extends from the right end of the first arc-shaped part 11 to the direction of the second arc-shaped part 13, the right surface of the first limiting part 111 is a plane, the right surface of the first limiting part 111 and the right surface of the second arc-shaped part 13 are in the same plane, the upper end of the first limiting part 111 is not in contact with the lower surface of the right end of the second arc-shaped part 13 and forms a first opening 115, a first containing cavity 112 is formed between the lower surface of the second arc-shaped part 13, the right surface of the connecting part 12, the upper surface of the first arc-shaped part 11 and the left surface of the first limiting part 111, the first containing cavity 112 is communicated with the first opening 115, the second limiting part 113 extends from the left end of the first arc-shaped part 11 to the direction of the second arc-shaped part 13, the left surface of the second limiting part 113 is a plane, the left surface of the second limiting part 113 and the left surface of the second arc-shaped part 13 are in the same plane, the upper end of the second limiting part 113 and the lower surface of the left end of the second arc-shaped part 13 are not in contact and form a second opening 116, a second containing cavity 114 is formed between the lower surface of the second arc-shaped part 13, the left surface of the connecting part 12, the upper surface of the first arc-shaped part 11 and the right surface of the second limiting part 113, and the second containing cavity 114 is communicated with the second opening 116; the bending directions of the first arc-shaped part 11 and the second arc-shaped part 13 are the same, and the first arc-shaped part 11 and the second arc-shaped part 13 are both convex downwards; the accommodating part 1 is of an integrated structure; each first accommodating cavity 112 or each second accommodating cavity 114 is internally provided with at least one surrounding loose tube 6; the upper surface of the second arc-shaped part 13 of the accommodating part 1 is attached to the outer wall of the central loose tube 3, and the second arc-shaped parts 13 of all the accommodating parts 1 cover the periphery of the outer wall of the central loose tube 3; a plurality of optical fiber ribbons 8 are disposed in a stacked manner within the central loose tube 3.
A central tube bundle optical ribbon cable as described in the second and third embodiments above, characterized in that the material of the surrounding loose tube is polybutylene terephthalate or polypropylene or steel or iron or aluminum or copper.
A central beam tube type ribbon optical cable described in the above second and third embodiments, characterized in that the type of the optical fiber is g.651 or g.652 or g.653 or g.654 or g.655 or g.656 or g.657 or A1a or A1b or A1c or A1d or A1e or OM1 or OM2 or OM3 or OM4.
In the central tube type ribbon optical cable described in the above second and third embodiments, the plurality of optical fibers inside the peripheral loose tube may also be made of an electrical conductor made of a material such as copper or aluminum or an alloy, in which case the peripheral loose tube tightly covers the electrical conductor, in which case the single receiving member can be used to transmit multiple paths of power after being taken out, and of course, steel wire or glass fiber reinforced plastic can be used to enhance the mechanical properties of the optical cable.
In the application, a single accommodating part is taken as a whole, and a plurality of accommodating parts only need to be spliced to realize the coating and protection outside the central beam tube or the central loose tube, so that the mechanical property is enhanced, and the purpose of reinforcing the optical cable without steel wire twisting equipment is realized; the structure of the containing parts solves the technical problem that in the prior art, a power transmission part is positioned in the sheath and is not easy to peel off, and in the application, the power transmission part is only required to be taken out of or put into the first opening and the second opening; in addition, if necessary, the outer wall of the central loose sleeve and the upper surface of the second arc-shaped part of the accommodating part can be bonded, and viscose glue can be driven in during production and can be continuous or intermittent; the optical fiber ribbons of the second and third embodiments of the present application greatly increase the capacity or density of optical communications; because the existence of holding part for the heat dissipation of composite cable is more excellent in this application, simultaneously, need not transposition equipment, so reduced equipment input, equipment space occupy, equipment operating personnel occupy, equipment lighting apparatus's input, so the cost is lower, the competitiveness is stronger. The plurality of optical fibers inside the peripheral loose sleeve of the second and third embodiments of the present application can also be formed by an electrical conductor, and when the material of the electrical conductor is copper or aluminum or alloy, the peripheral loose sleeve actually forms an insulated wire, in this case, the peripheral loose sleeve can be easily stripped, and the technical problems that in the optical cables such as GYXTW and GYXTW in the prior art, the power transmission line is not easily separated in the sleeve, and the power transmission line is easily broken in time sharing are solved.
The invention has the following main beneficial effects: the structure is simple, the manufacture is easy, the stripping is easy, the heat dissipation is easy, the communication density is higher, the product quality is more stable and reliable, and the production equipment investment is less.
The above-described embodiments are merely preferred technical solutions of the present invention, and should not be construed as limiting the present invention. The scope of the present invention is defined by the claims, and is intended to include equivalents of the features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of this invention.
Claims (11)
1. A central beam tube type optical cable is provided with a plurality of accommodating parts (1), a plurality of reinforcing parts (2), a central loose tube (3), a plurality of optical fibers (4) and an outer sheath (5), wherein the optical fibers (4) are positioned in the central loose tube (3), the reinforcing parts (2) are positioned outside the central loose tube (3), the reinforcing parts (2) are positioned in the accommodating parts (1), the accommodating parts (1) are positioned outside the central loose tube (3), and the outer sheath (5) is positioned outside the accommodating parts (1); the method is characterized in that: the accommodating part (1) is composed of a first arc-shaped part (11), a connecting part (12), a second arc-shaped part (13), a first limiting part (111) and a second limiting part (113), the first arc-shaped part (11) and the second arc-shaped part (13) are all in the shape of circular arc cylinders, the connecting part (12) is positioned between the first arc-shaped part (11) and the second arc-shaped part (13) and connects the first arc-shaped part and the second arc-shaped part together, the first limiting part (111) extends from the right end of the first arc-shaped part (11) to the direction of the second arc-shaped part (13), the right surface of the first limiting part (111) is a plane, the right surface of the first limiting part (111) and the right surface of the second arc-shaped part (13) are in the same plane, the upper end of the first limiting part (111) and the lower surface of the right end of the second arc-shaped part (13) are not in contact and form a first opening (115), the lower surface of the second arc-shaped part (13), the right surface of the connecting part (12), the upper surface of the first limiting part (11) and the upper surface of the first limiting part (111) and the left limiting part (112) are communicated with the left surface of the second limiting part (113), the accommodating part (112), the left surface of the second limiting part (113) and the left surface of the second arc-shaped part (13) are in the same plane, the upper end of the second limiting part (113) is not in contact with the lower surface of the left end of the second arc-shaped part (13) and forms a second opening (116), a second accommodating cavity (114) is formed among the lower surface of the second arc-shaped part (13), the left surface of the connecting part (12), the upper surface of the first arc-shaped part (11) and the right surface of the second limiting part (113), and the second accommodating cavity (114) is communicated with the second opening (116); the bending directions of the first arc-shaped part (11) and the second arc-shaped part (13) are the same, and the first arc-shaped part (11) and the second arc-shaped part (13) are both protruded downwards; the accommodating component (1) is of an integrated structure; the first accommodating cavity (112) and the second accommodating cavity (114) are internally provided with reinforcing components (2), the reinforcing components (2) are in shapes matched with the first accommodating cavity (112), and the reinforcing components (2) are in shapes matched with the second accommodating cavity (114); the upper surface of the second arc-shaped part (13) of the accommodating part (1) is attached to the outer wall of the central loose tube (3), and the second arc-shaped parts (13) of all the accommodating parts (1) cover the periphery of the outer wall of the central loose tube (3).
2. A central tube optical cable as claimed in claim 1, wherein the material of the housing member is plastic.
3. A central tube bundle cable according to claim 2, wherein the material of the housing is low density polyethylene or medium density polyethylene or high density polyethylene or low smoke zero halogen dense polyethylene or low smoke low halogen polyethylene or polyvinyl chloride or polytetrafluoroethylene or TPE or TPU or polypropylene.
4. A central tube bundle cable according to claim 1, wherein the material of the strength member is copper or aluminum or alloy or iron or glass fiber reinforced plastic.
5. A central tube bundle cable according to claim 1, wherein the material of the central loose tube is polybutylene terephthalate or polypropylene or steel or aluminum or copper.
6. A central tube bundle cable according to claim 1, wherein the type of the optical fiber is g.651 or g.652 or g.653 or g.654 or g.655 or g.656 or g.657 or A1a or A1b or A1c or A1d or A1e or OM1 or OM2 or OM3 or OM4.
7. A central tube bundle cable according to claim 1, wherein the material of the outer sheath is low density polyethylene or medium density polyethylene or high density polyethylene or low smoke zero halogen dense polyethylene or low smoke low halogen polyethylene or polyvinyl chloride or polytetrafluoroethylene or TPE or TPU or polypropylene.
8. A central beam tube type ribbon optical cable is provided with a plurality of accommodating components (1), a plurality of peripheral loose tubes (6), a plurality of light guide fibers (7), a plurality of optical fiber ribbons (8), a plurality of light conductors (9) and an outer sheath (5), wherein the light guide fibers (7) are positioned in the peripheral loose tubes (6), the light conductors (9) are positioned in the optical fiber ribbons (8), the accommodating components (1) are positioned outside the optical fiber ribbons (8), and the outer sheath (5) is positioned outside the accommodating components (1); the method is characterized in that: the accommodating part (1) is composed of a first arc-shaped part (11), a connecting part (12), a second arc-shaped part (13), a first limiting part (111) and a second limiting part (113), the first arc-shaped part (11) and the second arc-shaped part (13) are all in the shape of circular arc cylinders, the connecting part (12) is positioned between the first arc-shaped part (11) and the second arc-shaped part (13) and connects the first arc-shaped part and the second arc-shaped part together, the first limiting part (111) extends from the right end of the first arc-shaped part (11) to the direction of the second arc-shaped part (13), the right surface of the first limiting part (111) is a plane, the right surface of the first limiting part (111) and the right surface of the second arc-shaped part (13) are in the same plane, the upper end of the first limiting part (111) and the lower surface of the right end of the second arc-shaped part (13) are not in contact and form a first opening (115), the lower surface of the second arc-shaped part (13), the right surface of the connecting part (12), the upper surface of the first limiting part (11) and the upper surface of the first limiting part (111) and the left limiting part (112) are communicated with the left surface of the second limiting part (113), the accommodating part (112), the left surface of the second limiting part (113) and the left surface of the second arc-shaped part (13) are in the same plane, the upper end of the second limiting part (113) is not in contact with the lower surface of the left end of the second arc-shaped part (13) and forms a second opening (116), a second accommodating cavity (114) is formed among the lower surface of the second arc-shaped part (13), the left surface of the connecting part (12), the upper surface of the first arc-shaped part (11) and the right surface of the second limiting part (113), and the second accommodating cavity (114) is communicated with the second opening (116); the bending directions of the first arc-shaped part (11) and the second arc-shaped part (13) are the same, and the first arc-shaped part (11) and the second arc-shaped part (13) are both protruded downwards; the accommodating component (1) is of an integrated structure; each first accommodating cavity (112) or each second accommodating cavity (114) is internally provided with at least one surrounding loose sleeve (6); the upper surfaces of the second arc-shaped parts (13) of all the accommodating parts (1) enclose a cylindrical central cavity; a plurality of optical fiber ribbons (8) are stacked together and positioned within the central cavity.
9. A central tube bundle ribbon cable according to claim 8, characterized in that the material of the surrounding loose tube is polybutylene terephthalate or polypropylene or steel or iron or aluminium or copper.
10. A central beam tube type optical cable is provided with four accommodating parts (1), a central loose tube (3), a plurality of peripheral loose tubes (6), a plurality of light guide fibers (7), a plurality of optical fiber ribbons (8), a plurality of light conductors (9) and an outer sheath (5), wherein the light guide fibers (7) are positioned in the peripheral loose tubes (6), the light guide fibers (9) are positioned in the optical fiber ribbons (8), the optical fiber ribbons (8) are positioned in the central loose tube (3), the peripheral loose tubes (6) are positioned outside the central loose tube (3), the accommodating parts (1) are positioned outside the central loose tube (3), and the outer sheath (5) is positioned outside the accommodating parts (1); the method is characterized in that: the accommodating part (1) comprises a first arc-shaped part (11), a connecting part (12), a second arc-shaped part (13), a first limiting part (111) and a second limiting part (113), wherein the first arc-shaped part (11) and the second arc-shaped part (13) are all in the shape of circular arc cylinders, the connecting part (12) is positioned between the first arc-shaped part (11) and the second arc-shaped part (13) and connects the first arc-shaped part and the second arc-shaped part together, the first limiting part (111) extends towards the second arc-shaped part (13) from the right end of the first arc-shaped part (11), the right surface of the first limiting part (111) is a plane, the right surface of the first limiting part (111) and the right surface of the second arc-shaped part (13) are in the same plane, the upper end of the first limiting part (111) is not in contact with the lower surface of the right end of the second arc-shaped part (13) and forms a first opening (115), the lower surface of the second arc-shaped part (13), the left surface of the second arc-shaped part (13), the second arc-shaped part (12) is communicated with a left surface of the second arc-shaped part (112), the second limiting part (113), and the second arc-shaped part (13) extends towards the left surface of the second limiting part (112), the left surface of the second limiting part (113) and the left surface of the second arc-shaped part (13) are in the same plane, the upper end of the second limiting part (113) is not in contact with the lower surface of the left end of the second arc-shaped part (13) and forms a second opening (116), a second accommodating cavity (114) is formed among the lower surface of the second arc-shaped part (13), the left surface of the connecting part (12), the upper surface of the first arc-shaped part (11) and the right surface of the second limiting part (113), and the second accommodating cavity (114) is communicated with the second opening (116); the bending directions of the first arc-shaped part (11) and the second arc-shaped part (13) are the same, and the first arc-shaped part (11) and the second arc-shaped part (13) are both protruded downwards; the accommodating component (1) is of an integrated structure; each first accommodating cavity (112) or each second accommodating cavity (114) is internally provided with at least one surrounding loose sleeve (6); the upper surface of a second arc-shaped part (13) of each accommodating part (1) is attached to the outer wall of the central loose tube (3), and the second arc-shaped parts (13) of all the accommodating parts (1) cover the periphery of the outer wall of the central loose tube (3); a plurality of optical fiber ribbons (8) are disposed in a stacked manner within the central loose tube (3).
11. A central tube bundle cable according to claim 10, characterized in that the material of the surrounding loose tube is polybutylene terephthalate or polypropylene or steel or iron or aluminium or copper.
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| CN202111024204.5A CN113640932B (en) | 2021-09-02 | 2021-09-02 | Central beam tube type optical cable and central beam tube type ribbon optical cable |
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| CN113640932B true CN113640932B (en) | 2023-02-03 |
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| CN118707677A (en) * | 2024-08-30 | 2024-09-27 | 江苏永鼎股份有限公司 | Composite central beam tube type optical cable |
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