CN115480352B - Self-supporting optical cable - Google Patents
Self-supporting optical cable Download PDFInfo
- Publication number
- CN115480352B CN115480352B CN202211271368.2A CN202211271368A CN115480352B CN 115480352 B CN115480352 B CN 115480352B CN 202211271368 A CN202211271368 A CN 202211271368A CN 115480352 B CN115480352 B CN 115480352B
- Authority
- CN
- China
- Prior art keywords
- elastomer
- elastic body
- self
- elastic
- optical cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 118
- 229920001971 elastomer Polymers 0.000 claims abstract description 73
- 239000000806 elastomer Substances 0.000 claims abstract description 72
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 66
- 230000002787 reinforcement Effects 0.000 claims abstract description 38
- 239000013013 elastic material Substances 0.000 claims abstract description 19
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 17
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 17
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- 238000009826 distribution Methods 0.000 claims abstract description 4
- 239000000835 fiber Substances 0.000 claims description 39
- 239000011241 protective layer Substances 0.000 claims description 35
- 238000001125 extrusion Methods 0.000 claims description 30
- 239000013307 optical fiber Substances 0.000 claims description 28
- 229920003023 plastic Polymers 0.000 claims description 23
- 239000004033 plastic Substances 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 17
- 239000011248 coating agent Substances 0.000 claims description 16
- 238000000576 coating method Methods 0.000 claims description 16
- 239000010410 layer Substances 0.000 claims description 15
- 239000004677 Nylon Substances 0.000 claims description 10
- 229920001778 nylon Polymers 0.000 claims description 10
- 239000004433 Thermoplastic polyurethane Substances 0.000 claims description 8
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 8
- 229920002379 silicone rubber Polymers 0.000 claims description 7
- 239000004945 silicone rubber Substances 0.000 claims description 7
- 239000003365 glass fiber Substances 0.000 claims description 6
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 6
- 229920002397 thermoplastic olefin Polymers 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 239000003351 stiffener Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 239000004636 vulcanized rubber Substances 0.000 claims description 2
- 238000009827 uniform distribution Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 10
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 239000004642 Polyimide Substances 0.000 description 17
- 229920001721 polyimide Polymers 0.000 description 17
- 241000700159 Rattus Species 0.000 description 10
- 229920006231 aramid fiber Polymers 0.000 description 10
- 230000008054 signal transmission Effects 0.000 description 10
- 230000035882 stress Effects 0.000 description 8
- 238000007664 blowing Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229920006346 thermoplastic polyester elastomer Polymers 0.000 description 3
- 229920006342 thermoplastic vulcanizate Polymers 0.000 description 3
- 208000010392 Bone Fractures Diseases 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 239000002990 reinforced plastic Substances 0.000 description 2
- 206010017076 Fracture Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- G02B6/4407—Optical cables with internal fluted support member
-
- 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
- G02B6/441—Optical cables built up from sub-bundles
-
- 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
- G02B6/4415—Cables for special applications
- G02B6/4416—Heterogeneous cables
- G02B6/4422—Heterogeneous cables of the overhead type
-
- 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
- G02B6/4415—Cables for special applications
- G02B6/4416—Heterogeneous cables
- G02B6/4422—Heterogeneous cables of the overhead type
- G02B6/4423—Electro-corrosion preventing means
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
Abstract
The application discloses a self-supporting optical cable, which relates to the technical field of long-distance transmission optical cables, and comprises the following components: a first elastic body made of thermoplastic elastic material, wherein a plurality of embedded grooves are formed on the outer wall of the first elastic body in a circumferential distribution manner; a plurality of light units penetrating into the first elastic body; the first reinforcement piece is penetrated in the first elastomer, and the first elastomer, the first reinforcement piece and the plurality of light units are integrally arranged; the second elastic bodies are made of thermoplastic elastic materials and are respectively embedded in the embedding grooves correspondingly; an inner sheath wrapped outside the plurality of second elastic bodies; an outer sheath wrapped outside the inner sheath; the second reinforcing pieces penetrate through the outer protection layer. The self-supporting optical cable has good tensile property and bending laying property, and has excellent properties of low temperature resistance, wind vibration resistance, mouse bite resistance and the like.
Description
Technical Field
The application relates to the technical field of long-distance transmission optical cables, in particular to a self-supporting optical cable.
Background
When the remote signal transmission is carried out in mountain areas or suburban areas, etc., a self-supporting optical cable capable of being laid overhead is generally used so as to conveniently utilize the existing power transmission erection tower, however, the self-supporting optical cable erected in an open air environment is easily affected by severe weather conditions, such as snow storm, freezing, typhoon, etc., or is affected by natural environment, such as being easily bitten by rats in severe areas, such as mountains, hills, etc., and causes great threat to the use safety of the optical cable, and communication line interruption is easily caused. The existing self-supporting optical cable has low tensile capacity and poor cold resistance, and can easily generate galloping and extrusion of a cable core under weather conditions such as rain, snow, strong wind, freezing and the like, so that the mechanical strength and the transmission performance of the optical cable are affected, or the number of reinforcing elements or armor layers are increased for improving the mechanical performance, so that the bending performance of the optical cable is reduced to a certain extent, the weight and the outer diameter of the optical cable are increased, and the difficulty in producing, manufacturing and constructing the optical cable is improved.
Disclosure of Invention
The application aims to provide a self-supporting optical cable which has good mechanical property and bending laying property, and is resistant to low temperature, wind vibration and rat bite.
The above object of the present application can be achieved by the following technical solutions:
the present application provides a self-supporting fiber optic cable comprising:
the first elastic body is made of thermoplastic elastic materials, a plurality of embedded grooves are formed in the outer wall of the first elastic body in a circumferential distribution mode, and the embedded grooves are arranged in a spiral surrounding mode on the outer wall of the first elastic body;
at least one first reinforcement penetrating the center of the first elastic body;
the light units penetrate through the first elastic body and are uniformly distributed circumferentially around the first reinforcing piece, and the first elastic body is coated on the peripheries of the first reinforcing piece and the light units in the process of processing and forming through an extrusion molding process to form a continuous column structure, so that the first elastic body, the first reinforcing piece and the light units are integrally arranged;
the second elastic bodies are made of thermoplastic elastic materials, spirally and circumferentially arranged and respectively correspondingly embedded in the embedding grooves;
an inner sheath which is wrapped outside the plurality of second elastic bodies;
the outer protective layer is wrapped on the outer side of the inner protective layer;
and the second reinforcing pieces penetrate through the outer protection layer.
In a preferred embodiment, the surface of the first reinforcement is subjected to an adhesive coating treatment, so that the first reinforcement is coated and arranged at the central position of the first elastomer and is adhered to the first elastomer into a whole; the plurality of light units are distributed in the first elastomer circumferentially around the axis of the first stiffener.
In a preferred embodiment, the number of the first reinforcing members is plural, one first reinforcing member is penetrating through the center of the first elastomer, the plural light units are uniformly distributed circumferentially around the first reinforcing member located at the center of the first elastomer, and the rest of the first reinforcing members and the light units are distributed in the first elastomer at intervals.
In a preferred embodiment, the first elastomer is formed by extrusion molding, and the first elastomer is wrapped around the plurality of first reinforcing members and the plurality of light units in the extrusion molding process to form a continuous integrated cylinder structure, so that the first elastomer, the plurality of first reinforcing members and the plurality of light units are integrally arranged.
In a preferred embodiment, the method further comprises: the second reinforcing pieces are circumferentially distributed in the outer protection layer around the axis of the first elastic body and are divided into two groups, and are respectively positioned on one side and the other side between the third reinforcing pieces on the two opposite sides of the outer protection layer.
In a preferred embodiment, the outer protection layer is formed by extrusion molding, and the outer protection layer is coated around the second reinforcing members and the third reinforcing members and integrally molded in the extrusion molding process.
In a preferred embodiment, the structure of the second elastomer comprises at least one of the following structures: the bottom surface of the embedded groove is arc-shaped corresponding to the surface of the second elastic body;
in a state that the structure of the second elastic body is a cylindrical structure, the depth value of the embedded groove is between the radius value and the diameter value of the cross-section circle of the second elastic body;
and in the state that the structure of the second elastomer is an elliptic cylinder structure, the depth value of the embedded groove is between the minor axis value and the major axis value of the cross section ellipse of the second elastomer.
In a preferred embodiment, the first elastomer and the second elastomer are formed by one-time extrusion molding of a thermoplastic elastomer material, and the thermoplastic elastomer material for preparing the first elastomer and the second elastomer at least comprises one of the following: thermoplastic polyurethane elastic material, thermoplastic vulcanized rubber, thermoplastic polyolefin elastic material, thermoplastic polyester elastic material; the first elastomer has a Shore hardness of 65 to 90, a density of 1.1g/cm3 to 1.2g/cm3, a tensile strength of greater than or equal to 45MPa, a breaking strength of greater than or equal to 80kN/m, and the second elastomer has a Shore hardness of 45 to 65, a tensile strength of greater than or equal to 30MPa, a breaking strength of greater than or equal to 50kN/m, and a tensile and compression set of greater than or equal to 30%.
In a preferred embodiment, the outer sheath is made of a compatible blend material of specific fiber and nylon plastic modified by a silane coupling agent, the inner sheath is made of tracking-resistant polyethylene plastic, the outer sheath and the inner sheath are formed by one-time co-extrusion molding, the content of the specific fiber in the nylon plastic is between 10% and 30%, and the specific fiber at least comprises one of the following components: alkali-free short glass fiber filaments having a diameter of between 5 μm and 13 μm and a length of between 0.2mm and 1mm, and carbon fibers having a length of between 0.2mm and 0.8 mm.
In a preferred embodiment, the method further comprises:
the wrapping belt is wrapped on the outer sides of the second elastic bodies and is positioned on the inner side of the inner protective layer, and the second elastic bodies are respectively embedded in the embedding grooves by the wrapping belt;
the light unit includes:
an optical fiber;
the optical fiber protection layer is arranged on the outer side of the optical fiber in a wrapping mode;
and the optical unit coating is uniformly coated on the outer wall surface of the optical fiber protective layer, and the optical unit coating is made of normal-temperature vulcanized silicone rubber.
The application has the characteristics and advantages that:
the self-supporting optical cable can be used for long-distance optical signal transmission in remote areas such as mountain areas or suburbs, can save the optical cable laying cost and is erected on the existing power transmission tower in a self-bearing mode. The self-supporting optical cable is characterized in that the optical unit provided with the optical fiber and the first reinforcing piece for reinforcing the internal structural strength of the optical cable are arranged in the first elastic body with good elasticity, so that the optical cable has good toughness, the optical cable can absorb kinetic energy generated by swing by the first elastic body when being blown by wind to generate severe swing in open air environment, the internal optical fiber is protected from being damaged by excessive kinetic energy, the stability of optical cable signal transmission is further improved, the tensile property of the optical cable can be improved by the first reinforcing piece arranged in the first elastic body in a penetrating manner, the optical cable is prevented from being blown off or being crushed by ice covered in winter, the first elastic body, the first reinforcing piece and the optical units are integrally arranged, the optical cable has compact internal structure, and the optical cable forms a whole with each other, and the internal structures of the optical cable are prevented from collision with each other when the optical cable swings. In order to further strengthen the wind-blowing-resistant swinging capacity of the optical cable, a plurality of second elastomers made of thermoplastic elastic materials are further arranged outside the first elastomer, and the plurality of second elastomers are wrapped around the wrapping belt to be propped against the outer wall of the first elastomer, so that the second elastomers can move together with the first elastomer and absorb kinetic energy generated when the optical cable swings together, thereby obtaining better wind-blowing-resistant swinging capacity and automatically enabling the optical cable to recover the original shape after the external force is eliminated. The inner protective layer wrapped outside the wrapping tape has good tracking resistance, so that the influence of the high-voltage wire beside the inner protective layer on the electric corrosion of the optical cable is effectively reduced, and the stable signal transmission of the optical fiber inside the inner protective layer is protected; the outer protective layer which is wrapped outside the inner protective layer has good rat bite resistance, the condition that the optical cable is stung by a rat group to cause the interruption of optical fiber signals can be effectively prevented, and the plurality of second reinforcing pieces are arranged in the outer protective layer in a penetrating manner, so that good tensile mechanical property can be provided, the optical cable can bear the weight of the optical cable, and the optical cable can be prevented from being broken due to the influence of ice coating or strong wind pressure in winter.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic cross-sectional view of the present application.
Fig. 2 is a schematic cross-sectional structure of another embodiment of the present application.
Fig. 3 is a schematic cross-sectional view of a second elastomer with through holes according to the present application.
FIG. 4 is a schematic cross-sectional view of the outer jacket portion of the present application.
Fig. 5 shows a schematic structure of a light unit according to the present application.
Description of the reference numerals
1. An outer protective layer; 2. a second reinforcement; 3. an inner protective layer; 4. wrapping the belt; 5. a second elastomer; 6. a first elastomer; 61. a fitting groove; 7. a light unit; 71. a light unit coating; 72. an optical fiber; 73. an optical fiber protective layer; 8. a first reinforcement; 9. and a third reinforcement.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application. It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, may be in communication with each other in two elements, may be directly connected, or may be indirectly connected through an intermediary, and the specific meaning of the terms may be understood by those of ordinary skill in the art in view of the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Referring to fig. 1, the present application provides a self-supporting optical cable, which includes a first elastomer 6, a plurality of second elastomers 5, a plurality of optical units 7, at least one first reinforcing member 8, a plurality of second reinforcing members 2, a wrapping tape 4, an inner sheath 3 and an outer sheath 1, wherein: the first elastic body 6 is made of thermoplastic elastic material, a plurality of embedded grooves 61 are formed on the outer wall of the first elastic body 6 in a circumferential distribution mode, and the embedded grooves 61 are arranged in a spiral surrounding mode on the outer wall of the first elastic body 6; the first reinforcement 8 is arranged in the center of the first elastic body 6 in a penetrating way; the plurality of light units 7 penetrate through the first elastic body 6, the plurality of light units 7 are uniformly distributed around the first reinforcing piece 8 in the circumferential direction, the periphery of the first reinforcing piece 8 and the plurality of light units 7 is coated with the first elastic body 6 in the process of processing and forming through an extrusion molding process to form a continuous cylinder structure, so that the first elastic body 6, the first reinforcing piece 8 and the plurality of light units 7 are integrally arranged; the plurality of second elastic bodies 5 are made of thermoplastic elastic materials, and the plurality of second elastic bodies 5 are spirally arranged in a surrounding manner and are respectively correspondingly embedded in the plurality of embedded grooves 61; the inner protective layer 3 is wrapped outside the plurality of second elastic bodies 5; the outer protective layer 1 is wrapped outside the inner protective layer 3; the plurality of second reinforcing members 2 penetrate through the outer protective layer 1.
The self-supporting optical cable provided by the embodiment of the application can be used for long-distance optical signal transmission in remote areas such as mountain areas or suburbs, and can be erected on the existing power transmission tower in a self-bearing manner so as to reduce the additional erection resource consumption. In order to improve the stability of optical cable signal transmission, the self-supporting optical cable of the embodiment can resist severe weather conditions in open air environment, such as snow storm, freezing, typhoon and the like, and also can resist the situation of rat bite in severe areas such as mountainous and hilly areas and the like. The self-supporting optical cable of this embodiment is to install the optical unit 7 with optical fibers and the first reinforcement 8 for reinforcing the internal structural strength of the optical cable into the first elastomer 6 with good elasticity, which can effectively make the interior of the optical cable have good toughness, when the optical cable is blown by wind and generates severe swing in extreme weather such as strong wind, the first elastomer 6 made of thermoplastic elastic material with good elasticity and toughness can absorb the kinetic energy generated by swing, thereby protecting the optical fibers in the interior from being damaged by excessive kinetic energy, further improving the stability of optical cable signal transmission, the first reinforcement 8 penetrating the first elastomer 6 can improve the tensile property in the optical cable, prevent the optical cable from being blown or being broken by ice covered in winter, the first elastomer 6, the first reinforcement 8 and the plurality of optical units 7 are integrally arranged, so that the optical cable has compact internal structure and forms a whole with each other, and the internal structures of the optical cable are prevented from generating mutual collision when the optical cable shakes. In order to further enhance the wind-blowing swing resistance of the optical cable, a plurality of embedded grooves 61 are formed on the surface of the first elastic body 6, and a plurality of second elastic bodies 5 made of thermoplastic elastic materials are respectively embedded on the plurality of embedded grooves 61, so that the second elastic bodies 5 can move together with the first elastic bodies 6 and absorb kinetic energy generated when the optical cable swings together, thereby obtaining better wind-blowing swing resistance, automatically recovering the optical cable to be original after the external force is eliminated, and the embedded grooves 61 can also effectively limit and fix the positions of the second elastic bodies 5, thereby effectively preventing the situation that the positions of the second elastic bodies 5 are disordered due to the swinging of the self-supporting optical cable. The inner protective layer 3 which is wrapped on the outer sides of the second elastic bodies 5 has good tracking resistance, so that the influence of high-voltage wires beside on the electric corrosion of the optical cable is effectively reduced, and the stable signal transmission of the optical fibers inside the optical cable is protected; the outer protective layer 1 which is wrapped on the outer side of the inner protective layer 3 has good rat bite resistance, can effectively prevent the condition that the optical cable is stung by a rat group to cause the interruption of optical fiber signals, and a plurality of second reinforcing pieces 2 are arranged in the outer protective layer 1 in a penetrating manner, so that good tensile mechanical properties can be provided, the optical cable can bear the weight of the optical cable by itself, and the optical cable can be prevented from being broken due to the influence of ice coating or strong wind pressure in winter.
In order to make the self-supporting optical cable of the present embodiment have good elasticity and toughness, specifically, the first elastomer 6 and the second elastomer 5 may be made of, for example, thermoplastic polyurethane elastomer (Thermoplastic Polyurethane, TPU) through an integral molding process, and have certain performance parameter requirements. In a preferred embodiment, the first elastic body 6 and the second elastic body 5 are formed by one-time extrusion molding of thermoplastic elastic materials, and the thermoplastic elastic materials of the first elastic body 6 and the second elastic body 5 at least comprise one of the following: thermoplastic polyurethane elastomers (Thermoplastic Polyurethane, TPU), thermoplastic vulcanizates (Thermoplastic Vulcanizate, TPV), thermoplastic polyolefin elastomers (Thermoplastic Polyolefin, TPO), thermoplastic polyester elastomers (Thermoplastic Polyester Elastomer, TPEE); the first elastomer 6 HAs a Shore Hardness (HA) of 65 to 90, a density of 1.1g/cm3 to 1.2g/cm3, a tensile strength of 45MPa or more, a breaking strength of 80kN/m or more, and the second elastomer 5 HAs a Shore hardness of 45 to 65, a tensile strength of 30MPa or more, a breaking strength of 50kN/m or more, and a tensile and compression set of 30% or more. By adopting the thermoplastic elastomer material and ensuring that the thermoplastic elastomer material meets the parameter requirements, the optical cable has good elasticity and toughness under the action of the first elastomer 6 and the second elastomer 5, and the situation of pulling fracture or torsion fracture under the condition of strong wind or ice coating is effectively prevented.
To further improve the elasticity and toughness of the self-supporting optical cable, the structure of the second elastic body 5 is generally selected to be a columnar structure, and the fitting groove 61 and the second elastic body 5 have a good dimensional matching relationship. Referring to fig. 2 and 3, in a preferred embodiment, the engaging groove 61 is disposed on the outer wall of the first elastic body 6 in a spiral surrounding manner, and the second elastic body 5 is correspondingly disposed on the engaging groove 61 in a spiral surrounding manner; the structure of the second elastic body 5 includes at least one of the following structures: the cylindrical structure, the elliptic cylindrical structure, and the elliptic cylindrical structure with a through hole formed in the center along the axial direction, the bottom surface of the embedded groove 61 is arc-shaped corresponding to the surface of the second elastic body 5; in a state where the structure of the second elastic body 5 is a cylindrical structure, the depth value of the fitting groove 61 is between the radius value and the diameter value of the cross-sectional circle of the second elastic body 5; in a state where the structure of the second elastic body 5 is an elliptic cylinder structure, the depth value of the fitting groove 61 is between the minor and major half values of the cross-sectional ellipse of the second elastic body 5.
When the optical cable is subjected to external forces such as bending, extrusion, torsion and the like, the plurality of cylindrical or elliptic cylindrical second elastic bodies 5 can resist a certain external force through compression deformation, so that the influence of stress on the internal light unit 7 is lightened, and the original shape can be automatically recovered after the external force is eliminated, thereby ensuring the integrity and stability of the structure. The embedding groove 61 and the second elastic body 5 are arranged in a spiral surrounding structure, so that the external force resistance performance of the second elastic body 5 can be effectively improved, the embedding relation between the second elastic body 5 and the embedding groove 61 is further enhanced, and the situation that the second elastic body 5 is separated from the embedding groove 61 to cause position disorder is prevented. By the dimensional matching relationship between the second elastic body 5 and the fitting groove 61, the fitting area between the fitting groove 61 and the second elastic body 5 can be ensured, thereby improving the stress dispersion capability of the second elastic body 5. The through air holes are arranged in the elliptic cylindrical second elastic body 5, so that the stress dispersing capability of the second elastic body 5 can be further improved, and the bending performance of the whole optical cable can be improved.
Referring to fig. 1 and 2, in order to make the self-supporting fiber optic cable of the present embodiment have good tensile properties, the first reinforcing members 8 may have different arrangements, and suitable materials and surface treatment processes are selected. In a preferred embodiment, the first reinforcement member 8 comprises a plastic round rod made of polyimide fiber reinforced plastic, and the first elastomer 6 is wrapped around the first reinforcement member 8 and the plurality of light units 7 in the process of processing and forming by an extrusion molding process to form a continuous column structure; the surface of the first reinforcement 8 is subjected to an adhesive coating treatment so that the first reinforcement 8 is wrapped around the center of the first elastic body 6 and is bonded to the first elastic body 6 as a unit; a plurality of light units 7 are distributed circumferentially within the first elastomer 6 about the axis of the first reinforcement 8. In another preferred embodiment, the number of the first reinforcing members 8 is plural, one first reinforcing member 8 is arranged in the center of the first elastic body 6 in a penetrating manner, and the plurality of light units 7 are uniformly distributed circumferentially around the first reinforcing member 8 located in the center of the first elastic body 6; the remaining first reinforcing members 8 are disposed in the first elastic body 6 at intervals apart from the light units 7; the material of the first stiffener 8 comprises at least one of the following: polyimide fiber yarn, polyimide fiber rope, aramid fiber yarn and aramid fiber rope. The polyimide fiber has high modulus, high strength, low elongation at break and excellent creep resistance, and the first reinforcing member 8 made of polyimide fiber reinforced plastic is arranged at the center of the optical cable, so that the self-supporting optical cable of the embodiment can be provided with excellent tensile strength to resist extreme weather such as strong wind or ice coating. The polyimide fiber yarn, the polyimide fiber rope, the aramid fiber yarn and the aramid fiber rope material also have high modulus, high strength, low elongation at break and excellent creep resistance, and the decentralized arrangement of the first reinforcing member 8 in a decentralization manner can improve the flexibility and bending performance of the optical cable while providing excellent tensile strength for the optical cable, and further avoid bending damage of the first reinforcing member 8 caused by the increase of the curvature of the optical cable due to ice coating. If the first reinforcement member 8 is placed in the center of the optical cable, the first reinforcement member 8 made of polyimide fiber composite plastic and having a plastic round rod shape can be fixed in a straight-placed manner, and the first elastomer 6 is extruded and coated on the outer surface of the first reinforcement member 8, so that the inside of the first reinforcement member 8 has no bending stress when the optical cable is integrally molded; in the case of the embodiment in which the first reinforcing members 8 are provided in a dispersed manner, the first elastic body 6 may be extrusion-coated on the twisted string-shaped first reinforcing members 8.
In order to further provide the self-supporting optical cable of the embodiment with good tensile properties, the outer protective layer 1 is filled with a plurality of second reinforcing members 2, and the plurality of second reinforcing members 2 are circumferentially distributed along the circular cylindrical structure formed by the outer protective layer 1. In addition, if the first reinforcing members 8 are provided in a dispersed manner, more tensile reinforcing structures are further provided in the outer sheath 1 in order to ensure the tensile strength of the whole optical cable. In a preferred embodiment, the outer sheath 1 further comprises a plurality of third reinforcing members 9 penetrating through the outer sheath 1, the plurality of third reinforcing members 9 penetrate through opposite sides of the outer sheath 1, the plurality of second reinforcing members 2 are circumferentially distributed in the outer sheath 1 around the axis of the first elastic body 6, and the plurality of second reinforcing members 2 are divided into two groups, one side and the other side between the third reinforcing members 9 on opposite sides of the outer sheath 1. By uniformly placing the plurality of second reinforcing members 2 in the outer sheath 1, the tensile property of the outer sheath 1 can be remarkably enhanced, so that the self-supporting optical cable of the embodiment can maintain good structural stability when bearing strong wind pressure weather or icing in winter, and when the first reinforcing members 8 are arranged in a decentralizing and dispersing manner, the outer sheath 1 can maintain good tensile property by further arranging the third reinforcing members 9 in the outer sheath 1. In particular, the second reinforcement 2 and the third reinforcement 9 are made of similar materials as the first reinforcement 8 to maintain the material mechanical properties of the plurality of reinforcement structures similar to each other, preventing internal damage caused by stress concentration. In a preferred embodiment, the material of the second reinforcement 2 comprises at least one of the following: polyimide fiber yarn, polyimide fiber rope, aramid fiber yarn and aramid fiber rope; the third reinforcing member 9 is a plastic round bar made of polyimide fiber composite reinforced plastic. Similar to the aforementioned first reinforcement 8, the polyimide fiber composite reinforced plastic, polyimide fiber yarn, polyimide fiber rope, aramid fiber yarn and aramid fiber rope materials have high modulus, high strength, low elongation at break and excellent creep resistance, and similar mechanical properties to each other, so that the tensile properties of the inside and outside of the self-supporting optical cable of this embodiment are consistent, thereby uniformly dispersing the stress to which the optical cable is subjected.
In order to provide the self-supporting fiber optic cable of this embodiment with good structural stability, the first elastomer 6 is integrally formed with the first strength member 8 and the optical unit 7 during the molding process. In a preferred embodiment, the first elastic body 6 is formed by extrusion molding, and the first elastic body 6 is wrapped around the first reinforcing member 8 and the plurality of light units 7 arranged in the center in the extrusion molding process to form a continuous integrated cylinder structure. In another preferred embodiment, the first elastic body 6 is formed by extrusion molding, and the first elastic body 6 is wrapped around the plurality of first reinforcing members 8 and the plurality of light units 7 which are disposed in a decentralizing and dispersing manner in the extrusion molding process to form a continuous integrated cylinder structure. The first reinforcement 8 and the plurality of optical units 7 are directly coated when the first elastic body 6 is formed by extrusion molding, so that the inner structures of the self-supporting optical cable of the embodiment are tightly abutted against each other without gaps, kinetic energy generated when the optical cable swings under the action of external force is fully absorbed by the first elastic body 6, and stress received in the optical cable can be well transmitted to the reinforcement, so that the signal transmission stability of the optical units 7 and the structural stability in the optical cable are protected. In addition, in order to provide the self-supporting fiber optic cable of the present embodiment with good structural stability, the outer jacket 1 should be integrated with the second reinforcing member 2 and the third reinforcing member 9 during the molding process. Referring to fig. 4, in a preferred embodiment, the outer sheath 1 is formed by extrusion molding, and the outer sheath 1 is wrapped around the second reinforcing members 2 and the third reinforcing members 9 and integrally formed during the extrusion molding. Similarly, the second reinforcement member 2 and the third reinforcement member 9 are directly coated when the outer protection layer 1 is formed by extrusion molding, so that the inner structure of the outer protection layer 1 of the self-supporting optical cable of the embodiment is close to each other without gaps, and external force applied to the optical cable can be well transmitted to the reinforcement members, thereby protecting the overall structural stability of the optical cable. Specifically, the first reinforcing member 8 and the third reinforcing member 9 made of polyimide fiber composite plastic should be kept straight when being extrusion coated by the first elastic body 6 and the outer sheath 1, so that the bending stress of the plastic round rod is not remained inside the optical cable when the optical cable is integrally formed, thereby further improving the structural stability of the optical cable; the first reinforcement 8 and the second reinforcement 2, which are in the form of ropes made of polyimide fiber yarn, polyimide fiber rope, aramid fiber yarn and aramid fiber rope, are directly extrusion coated by the first elastomer 6 and the outer sheath 1.
Referring to fig. 5, the self-supporting optical cable of the present embodiment transmits optical signals through the optical unit 7, and in a preferred embodiment, the self-supporting optical cable further includes a wrapping band 4, which is wrapped on the outer sides of the plurality of second elastic bodies 5 and is located on the inner side of the inner protection layer 3, wherein the plurality of second elastic bodies 5 are respectively embedded in the plurality of embedding grooves 61 by the wrapping band 4; the light unit 7 comprises an optical fiber 72, an optical fiber sheath 73 and a light unit coating 71; wherein, the optical fiber protecting layer 73 is wrapped on the outer side of the optical fiber 72; the light unit coating 71 is uniformly coated on the outer wall surface of the optical fiber protective layer 73, and the light unit coating 71 is made of room temperature vulcanized silicone rubber. By wrapping the wrapping tape 4 around the outer sides of the plurality of second elastic bodies 5 and embedding the second elastic bodies 5 in the embedding grooves 61, the embedding stability between the second elastic bodies 5 and the embedding grooves 61 can be improved, and the second elastic bodies 5 can be prevented from sliding out of the embedding grooves 61. The optical fiber 72 is fixed by the optical fiber protective layer 73, so that deformation of the optical fiber 72 when being extruded can be reduced, enough optical signal transmission space is reserved in the optical fiber 72, and in order to ensure transmission performance of the optical unit 7 after being filled into the first elastomer 6, normal-temperature vulcanized silicone rubber which is in a sticky paste before being cured is coated on the outer side of the optical unit 7, and a deformable rubber body is formed after the normal-temperature vulcanized silicone rubber is cured, so that certain buffering is reserved when the optical unit 7 is subjected to external stress, the optical unit 7 has certain degree of freedom in the first elastomer 6, stable optical fiber 72 transmission performance is maintained, and in addition, the cured vulcanized silicone rubber also has a sealing waterproof effect, so that the service life of an optical cable is prolonged. Specifically, the curing mode of the normal-temperature vulcanized silicone rubber is room-temperature curing, and the curing process can be accelerated by heating.
To further improve the performance of the cable, the wrapping tape 4, the inner sheath 3 and the outer sheath 1 may also be manufactured from specific materials. In a preferred embodiment, the wrapping tape 4 is made of a polyamide film material, the outer sheath 1 is made of a compatible blend material of specific fibers and nylon plastics modified by a silane coupling agent, the inner sheath 3 is made of an tracking-resistant polyethylene plastic, the outer sheath 1 and the inner sheath 3 are formed by one-time co-extrusion molding, the content of the specific fibers in the nylon plastics is between 10% and 30%, and the specific fibers at least comprise one of the following: the nylon plastic comprises alkali-free short glass fiber filaments and carbon fibers, wherein the diameter of the alkali-free short glass fiber filaments is between 5 and 13 mu m, the length of the alkali-free short glass fiber filaments is between 0.2 and 1mm, the length of the carbon fibers is between 0.2 and 0.8mm, and the nylon plastic comprises at least one of the following materials: polycaprolactam material and polyhexamethylene adipamide material. The wrapping tape 4 made of the polyamide film material is wrapped on the periphery of the second elastomer 5, so that the second elastomer 5 can be fixed on the outer side of the first elastomer 6, stability of the inner structure of the optical cable is guaranteed, meanwhile, the heat insulation effect can be achieved, and the fact that the second elastomer 5 is not adhered to the wrapping tape 4 is guaranteed. The fiber reinforced nylon plastic adopted by the outer protective layer 1 can improve the tensile strength, bending strength and impact strength of the plastic, and has good temperature resistance, water resistance, wear resistance, creep resistance and corrosion resistance. The fiber and the plastic are modified by the silane coupling agent, so that the compatibility and blending of alkali-free short glass fiber yarns and nylon plastic can be well promoted, and the mechanical strength of the plastic with the outer protective layer 1 can be improved. Meanwhile, due to the existence of the fiber filaments in the outer protective layer 1, the mouth cavity of the rat can be stimulated when the rat gnaws the outer protective layer 1, and the animal is prevented from further damaging the optical cable, so that the rat prevention effect is effectively achieved. The tracking-resistant polyethylene plastic of the inner protective layer 3 can improve the electric corrosion resistance of the inner protective layer 3 and prevent the cable from being damaged by electric arcs possibly occurring on the high-voltage electric wire when the cable is erected on the high-voltage electric transmission line iron tower.
The foregoing is merely exemplary embodiments of the present application and those skilled in the art may make various modifications and alterations to the embodiments of the present application based on the disclosure herein without departing from the spirit and scope of the application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Claims (8)
1. A self-supporting fiber optic cable comprising:
the first elastic body is made of thermoplastic elastic materials, a plurality of embedded grooves are formed in the outer wall of the first elastic body in a circumferential distribution mode, and the embedded grooves are arranged in a spiral surrounding mode on the outer wall of the first elastic body;
at least one first reinforcement penetrating the center of the first elastic body;
the light units penetrate through the first elastic body and are uniformly distributed circumferentially around the first reinforcing piece, and the first elastic body is coated on the peripheries of the first reinforcing piece and the light units in the process of processing and forming through an extrusion molding process to form a continuous column structure, so that the first elastic body, the first reinforcing piece and the light units are integrally arranged;
the second elastic bodies are made of thermoplastic elastic materials, spirally and circumferentially arranged and respectively correspondingly embedded in the embedding grooves;
an inner sheath which is wrapped outside the plurality of second elastic bodies;
the outer protective layer is wrapped on the outer side of the inner protective layer;
the second reinforcing pieces penetrate through the outer protection layer; the surface of the first reinforcement is subjected to adhesive coating treatment, so that the first reinforcement is coated and arranged at the central position of the first elastomer and is adhered with the first elastomer into a whole; a plurality of the light units are circumferentially distributed in the first elastomer around the axis of the first reinforcement;
the structure of the second elastomer includes at least one of the following structures: the bottom surface of the embedded groove is arc-shaped corresponding to the surface of the second elastic body;
in a state that the structure of the second elastic body is a cylindrical structure, the depth value of the embedded groove is between the radius value and the diameter value of the cross-section circle of the second elastic body;
and in the state that the structure of the second elastomer is an elliptic cylinder structure, the depth value of the embedded groove is between the minor axis value and the major axis value of the cross section ellipse of the second elastomer.
2. The self-supporting fiber optic cable of claim 1, wherein the number of the first strength members is plural, one of the first strength members is disposed through the center of the first elastomer, the plurality of the optical units are disposed in a circumferentially uniform distribution around the first strength member at the center of the first elastomer, and the remaining first strength members are disposed in the first elastomer in a spaced apart dispersion from the optical units.
3. The self-supporting fiber optic cable of claim 2, wherein the first elastomer is formed by extrusion molding, and wherein the first elastomer is wrapped around the plurality of first stiffeners and the plurality of optical units during extrusion molding to form a continuous integrated cylindrical structure, so that the first elastomer, the plurality of first stiffeners, and the plurality of optical units are integrally disposed.
4. The self-supporting fiber optic cable of claim 2, further comprising: the second reinforcing pieces are circumferentially distributed in the outer protection layer around the axis of the first elastic body and are divided into two groups, and are respectively positioned on one side and the other side between the third reinforcing pieces on the two opposite sides of the outer protection layer.
5. The self-supporting fiber optic cable of claim 4, wherein the outer jacket is formed by extrusion molding, and wherein the outer jacket is integrally molded around the plurality of second strength members and the plurality of third strength members during the extrusion molding.
6. The self-supporting fiber optic cable of claim 1, wherein the first elastomer and the second elastomer are formed from thermoplastic elastomer material by one-time extrusion, the thermoplastic elastomer material from which the first elastomer and the second elastomer are formed comprising at least one of: thermoplastic polyurethane elastic material, thermoplastic vulcanized rubber, thermoplastic polyolefin elastic material, thermoplastic polyester elastic material; the first elastomer has a Shore hardness of 65 to 90, a density of 1.1g/cm3 to 1.2g/cm3, a tensile strength of greater than or equal to 45MPa, a breaking strength of greater than or equal to 80kN/m, and the second elastomer has a Shore hardness of 45 to 65, a tensile strength of greater than or equal to 30MPa, a breaking strength of greater than or equal to 50kN/m, and a tensile and compression set of greater than or equal to 30%.
7. The self-supporting fiber optic cable of claim 1, wherein the outer jacket is made of a compatible blend material of a specific fiber and a nylon plastic modified by a silane coupling agent, the inner jacket is made of a tracking-resistant polyethylene plastic, the outer jacket and the inner jacket are co-extruded once, the specific fiber is contained in the nylon plastic in an amount of between 10% and 30%, and the specific fiber comprises at least one of the following: alkali-free short glass fiber filaments having a diameter of between 5 μm and 13 μm and a length of between 0.2mm and 1mm, and carbon fibers having a length of between 0.2mm and 0.8 mm.
8. The self-supporting fiber optic cable of claim 1, further comprising:
the wrapping belt is wrapped on the outer sides of the second elastic bodies and is positioned on the inner side of the inner protective layer, and the second elastic bodies are respectively embedded in the embedding grooves by the wrapping belt;
the light unit includes:
an optical fiber;
the optical fiber protection layer is arranged on the outer side of the optical fiber in a wrapping mode;
and the optical unit coating is uniformly coated on the outer wall surface of the optical fiber protective layer, and the optical unit coating is made of normal-temperature vulcanized silicone rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211271368.2A CN115480352B (en) | 2022-10-18 | 2022-10-18 | Self-supporting optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211271368.2A CN115480352B (en) | 2022-10-18 | 2022-10-18 | Self-supporting optical cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115480352A CN115480352A (en) | 2022-12-16 |
| CN115480352B true CN115480352B (en) | 2023-08-11 |
Family
ID=84395329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211271368.2A Active CN115480352B (en) | 2022-10-18 | 2022-10-18 | Self-supporting optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115480352B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117075279B (en) * | 2023-10-13 | 2023-12-26 | 江苏中天科技股份有限公司 | Low-attenuation pressure-resistant underwater optical cable |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209961961U (en) * | 2019-01-29 | 2020-01-17 | 江苏永鼎股份有限公司 | Strong impact-resistant ribbon optical cable |
| CN111897069A (en) * | 2020-08-22 | 2020-11-06 | 常熟高通智能装备有限公司 | Special-shaped compression-resistant optical cable |
| CN212321939U (en) * | 2020-08-22 | 2021-01-08 | 常熟高通智能装备有限公司 | High-strength optical cable |
| CN212965528U (en) * | 2020-06-02 | 2021-04-13 | 南通科鼎复合材料科技有限公司 | Aramid fiber optical cable reinforced core |
| CN216561137U (en) * | 2022-01-28 | 2022-05-17 | 长飞光电线缆(苏州)有限公司 | Rat-proof optical cable with independent support frame |
| CN114690357A (en) * | 2022-05-31 | 2022-07-01 | 江苏中天科技股份有限公司 | All-dielectric self-supporting optical cable, manufacturing method and production system thereof |
-
2022
- 2022-10-18 CN CN202211271368.2A patent/CN115480352B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209961961U (en) * | 2019-01-29 | 2020-01-17 | 江苏永鼎股份有限公司 | Strong impact-resistant ribbon optical cable |
| CN212965528U (en) * | 2020-06-02 | 2021-04-13 | 南通科鼎复合材料科技有限公司 | Aramid fiber optical cable reinforced core |
| CN111897069A (en) * | 2020-08-22 | 2020-11-06 | 常熟高通智能装备有限公司 | Special-shaped compression-resistant optical cable |
| CN212321939U (en) * | 2020-08-22 | 2021-01-08 | 常熟高通智能装备有限公司 | High-strength optical cable |
| CN216561137U (en) * | 2022-01-28 | 2022-05-17 | 长飞光电线缆(苏州)有限公司 | Rat-proof optical cable with independent support frame |
| CN114690357A (en) * | 2022-05-31 | 2022-07-01 | 江苏中天科技股份有限公司 | All-dielectric self-supporting optical cable, manufacturing method and production system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115480352A (en) | 2022-12-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115480352B (en) | Self-supporting optical cable | |
| US20080302556A1 (en) | Enhanced Electrical Seismic Land Cable | |
| CN111781688B (en) | Pressure-resistant waterproof optical cable | |
| ES2821152T3 (en) | Electric power transmission mooring for an airborne wind power station | |
| CN108107528A (en) | A kind of miniature bending resistance mouse bite preventing spiral armor optical cable of Multi-core number and preparation method thereof | |
| CN116203689A (en) | Outdoor single-mode optical cable | |
| CN210090757U (en) | Tight-jacketed optical cable | |
| CN107907953A (en) | A kind of all dielectric self-supporting gunshot-proof optical cable and its manufacture craft | |
| CN209765122U (en) | Impact-resistant direct-buried optical cable | |
| CN106448852A (en) | Safe and reliable special mining cable | |
| CN207586497U (en) | A kind of all dielectric self-supporting gunshot-proof optical cable | |
| CN203760189U (en) | Soft type tow chain system control electric cable having 450/750 V rated voltage | |
| CN215577804U (en) | Cross-linked polyethylene insulated cold-resistant power cable | |
| CN208125971U (en) | A kind of miniature bending resistance mouse bite preventing spiral armor optical cable of Multi-core number | |
| CN113386903A (en) | Elastic mooring cable and ocean observation system | |
| CN206312628U (en) | A kind of superelevation tensile strength weather resistant charging pile cable | |
| CN207319743U (en) | A kind of immersible pump waterproof flat cable | |
| CN213627610U (en) | Crack-resistant waterproof board special for railway tunnel | |
| CN112509733B (en) | High-voltage direct-current optical fiber electric composite submarine cable | |
| CN220872716U (en) | Anti-freezing type central tube stranded optical cable | |
| CN117826351B (en) | Overhead optical cable capable of improving information transmission stability | |
| CN218333196U (en) | Electric vehicle connecting wire with good corrosion resistance | |
| CN219916755U (en) | Waterproof and corrosion-resistant composite cable | |
| CN213635447U (en) | Flame-retardant waterproof PE sheath material layer | |
| CN211669734U (en) | Aviation warning ball fixed by preformed armor rods |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240328 Address after: 226400 No. 1 Zhongtian Road, Hekou Town, Rudong County, Nantong City, Jiangsu Province Patentee after: JIANGSU ZHONGTIAN TECHNOLOGY Co.,Ltd. Country or region after: China Patentee after: ZHONGTIAN POWER OPTICAL CABLE Co.,Ltd. Address before: The road town of Rudong County in Jiangsu province 226463 in Nantong City, No. 1 Patentee before: JIANGSU ZHONGTIAN TECHNOLOGY Co.,Ltd. Country or region before: China |