CN111505779B - Radiation-resistant and bending-resistant reinforced optical cable - Google Patents
Radiation-resistant and bending-resistant reinforced optical cable Download PDFInfo
- Publication number
- CN111505779B CN111505779B CN202010401777.4A CN202010401777A CN111505779B CN 111505779 B CN111505779 B CN 111505779B CN 202010401777 A CN202010401777 A CN 202010401777A CN 111505779 B CN111505779 B CN 111505779B
- Authority
- CN
- China
- Prior art keywords
- arc
- resistant
- radiation
- sleeve
- 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
Images
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
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electric Cable Arrangement Between Relatively Moving Parts (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention relates to a radiation-resistant and bending-resistant reinforced optical cable which comprises a first outer sleeve (2), a first inner sleeve (11) and a movable layer positioned between the first outer sleeve (2) and the first inner sleeve (11), and is characterized in that a movable ring is arranged in the movable layer, the movable ring comprises a plurality of arc-shaped shafts (3) and a plurality of arc-shaped sleeves (1), and two ends of each arc-shaped shaft (3) are respectively inserted into the adjacent arc-shaped sleeves (1). The optical fiber protection device separates the optical fibers from each other, avoids damage caused by mutual friction, extrusion and friction, plays a role in protecting the optical fibers, and simultaneously ensures that the optical cable has a certain moving space inside the optical cable due to the moving mechanism and the elastic mechanism, so that the internal structure can be damaged.
Description
The application is a divisional application of an invention patent application with the application date of 2018, 7 and 5, application number of 201810728234.6 and the name of 'a radiation-resistant and bend-resistant reinforced optical cable'.
Technical Field
The invention relates to the technical field of optical cables, in particular to a radiation-resistant and bending-resistant reinforced optical cable.
Background
An optical fibre cable is a telecommunications cable consisting of two or more glass or plastic optical fibre cores, which are located in a protective covering, covered by a plastic PVC outer sleeve. The signal transmission along the internal optical fiber generally uses infrared rays, and the optical fiber communication is one of the important modes of modern information transmission, and has the advantages of large capacity, long relay distance, good confidentiality, no electromagnetic interference, copper material saving and the like.
However, the optical cable is often required to be arranged in a long distance, the arrangement length is very long, the flat cable is very complicated, a plurality of angles and positions which need to be bent exist, the optical cable is bent too much, the optical fiber is easily damaged, the internal structure of the optical cable is damaged, meanwhile, certain radiation can be generated when the optical cable works, and unsafe factors exist for people exposed around the optical cable for a long time.
Disclosure of Invention
The invention aims to solve the defects in the prior art, such as: the optical cable often needs to be bent in the use process, the bending strength is not enough, the internal structure is easily damaged, and the radiation-resistant and bending-resistant reinforced optical cable is provided.
In order to achieve the purpose, the invention provides a radiation-resistant and bend-resistant reinforced optical cable which comprises a first outer sleeve, a first inner sleeve and a movable layer positioned between the first outer sleeve and the first inner sleeve, wherein a movable ring is arranged in the movable layer, the movable ring comprises a plurality of arc-shaped shafts and a plurality of arc-shaped sleeves, and two ends of each arc-shaped shaft are respectively inserted into the adjacent arc-shaped sleeves.
Preferably, a plurality of first optical fibers are arranged in the first inner sleeve, and a spacer is arranged among the plurality of first optical fibers.
Preferably, a second inner sleeve and a second outer sleeve located in the second inner sleeve are arranged on the inner sides of the plurality of first optical fibers, an elastic layer is arranged between the second inner sleeve and the second outer sleeve, a sliding groove is formed in the inner wall of the second inner sleeve, and a plurality of moving mechanisms are connected to the sliding groove in a sliding manner.
Preferably, the movable mechanism comprises a first sliding block and elastic pieces, the first sliding block is connected with the sliding groove in a sliding mode, two ends of the elastic pieces are connected with the first sliding block in a rotating mode, a second sliding block is sleeved on the elastic pieces, an arc-shaped groove corresponding to the second sliding block is formed in the outer side of the second outer sleeve, the second sliding block is connected with the arc-shaped groove in a sliding mode, a plurality of connecting shafts are fixedly connected among the elastic pieces, and the elastic mechanisms are arranged on the connecting shafts.
Preferably, the elastic mechanism comprises a movable sleeve and a fixed block, and the movable sleeve is sleeved on the fixed block.
Preferably, both ends of the arc shaft are provided with limit blocks, and limit grooves corresponding to the limit blocks are formed in the arc sleeve.
In addition, the invention also provides a radiation-resistant and bending-resistant reinforced optical cable which comprises a first outer sleeve and a plurality of first optical fibers, wherein second inner sleeves and second outer sleeves positioned in the second inner sleeves are arranged on the inner sides of the plurality of first optical fibers, an elastic layer is arranged between the second inner sleeves and the second outer sleeves, a sliding groove is formed in the inner wall of the second inner sleeve, and a plurality of movable mechanisms are connected to the sliding groove in a sliding manner.
Preferably, the movable mechanism comprises a first sliding block and elastic pieces, the first sliding block is connected with the sliding groove in a sliding mode, two ends of the elastic pieces are connected with the first sliding block in a rotating mode, a second sliding block is sleeved on the elastic pieces, an arc-shaped groove corresponding to the second sliding block is formed in the outer side of the second outer sleeve, the second sliding block is connected with the arc-shaped groove in a sliding mode, a plurality of connecting shafts are fixedly connected among the elastic pieces, and the elastic mechanisms are arranged on the connecting shafts.
Preferably, the elastic mechanism comprises a movable sleeve and a fixed block, and the movable sleeve is sleeved on the fixed block.
Preferably, the device further comprises a first inner sleeve and an active layer located between the first outer sleeve and the first inner sleeve, wherein a movable ring is arranged in the active layer, the movable ring comprises a plurality of arc-shaped shafts and a plurality of arc-shaped sleeves, and two ends of each arc-shaped shaft are respectively inserted into the adjacent arc-shaped sleeves.
Compared with the prior art, the invention has the beneficial effects that: the optical fibers are separated from each other through the mutual matching of the first sleeve, the second sleeve, the isolating strip, the first inner sleeve and the second inner sleeve, so that the damage caused by mutual friction and extrusion friction is avoided, and the optical fibers are protected;
the movable mechanism and the elastic mechanism guarantee that the inside of the optical cable has a certain movable space, when the optical cable is bent, the inner structure is not pulled highly due to the fact that the optical cable is too rigid, the inner structure is bent, damage to the inner structure is caused, radiation effects are isolated simultaneously, and people who can effectively protect the optical cable in long-time contact can be protected.
Drawings
Fig. 1 is a schematic structural view of a radiation-resistant bend-resistant reinforced optical cable according to the present invention;
FIG. 2 is a schematic view of the structure at A in FIG. 1;
fig. 3 is a schematic structural diagram at B in fig. 1.
In the figure: the optical fiber connector comprises an arc-shaped sleeve 1, a first outer sleeve 2, an arc-shaped shaft 3, a first optical fiber 4, a sliding chute 5, a second outer sleeve 6, a spacer 7, a second inner sleeve 8, a second optical fiber 9, a connecting shaft 10, a first inner sleeve 11, a second sliding block 12, a first sliding block 13, a movable sleeve 14, a fixed block 15 and an elastic sheet 16.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-3, a radiation-resistant and bending-resistant reinforced optical cable comprises a first outer sleeve 2 and a plurality of first optical fibers 4, wherein the plurality of first optical fibers 4 are arranged in the first outer sleeve 2, a first inner sleeve 11 is arranged between the first optical fibers 4, the first inner sleeve 11 is sleeved on the plurality of first optical fibers 4, a movable layer is arranged between the first outer sleeve 2 and the first inner sleeve 11, the first inner sleeve 11 is made of wear-resistant and corrosion-resistant rubber, the first outer sleeve 2 is made of FRP, the FRP is light and hard and has high mechanical strength, a good protection effect can be achieved, a radiation-proof layer is connected to the inner wall of the first outer sleeve 2, the radiation-proof layer is made of aluminum foil, the aluminum foil is arranged on the inner wall of the first outer sleeve 2 and can protect against radiation, the influence of radiation generated by the optical cable on the surrounding environment in the using process is avoided, and the aluminum foil is soft and can meet the requirement of the optical cable, the movable ring is arranged in the movable layer and comprises a plurality of arc shafts 3 and a plurality of arc sleeves 1, two ends of each arc shaft 3 are respectively inserted into the two arc sleeves 1, the arc shafts 3 and the arc sleeves 1 are alternately arranged, two ends of each arc shaft 3 are respectively provided with a limiting block, a limiting groove corresponding to the limiting block is arranged in each arc sleeve 1, the limiting blocks are clamped with the limiting grooves and play a limiting role, the relative movement range between each arc shaft 3 and each arc sleeve 1 is controlled, the separation between the arc shafts and the arc sleeves is avoided due to the overlarge movement range, the second inner sleeve 8 is arranged on the inner sides of the first optical fibers 4, the isolating strips 7 are arranged among the first optical fibers 4, the second outer sleeve 6 is arranged in the second inner sleeve 8, the second optical fibers 9 are arranged in the second outer sleeve 6, and an elastic layer is arranged between the second inner sleeve 8 and the second outer sleeve 6, the inner wall of the second inner sleeve 8 is provided with a chute 5, and the chute 5 is connected with a plurality of movable mechanisms in a sliding way;
wherein, the movable mechanism includes the first slide block 13 and elastic sheet 16, the first slide block 13 is connected with the runner 5 in a sliding way, both ends of the elastic sheet 16 are connected with the first slide block 13 in a rotating way, the elastic sheet 16 is sleeved with the second slide block 12, the outer side of the second outer sleeve 6 is provided with an arc-shaped groove corresponding to the second slide block 12, the second slide block 12 is connected with the arc-shaped groove in a sliding way, a connecting shaft 10 is fixedly connected among the elastic sheets 16, the connecting shaft 10 is provided with an elastic mechanism, when the optical cable is extruded from the outside or needs to be bent, the first slide block 13 and the second slide block 12 can drive the elastic sheet 16 to slide in the elastic layer due to the external force, the position of the elastic sheet 16 is relatively deviated and is far away from the central point of bending, thereby reserving enough space, avoiding that both sides of the second optical fiber 9 and the first optical fiber 4 are subjected to large bending or extruding pressure due to narrow space, cause tensile excessive and damage, elastic mechanism includes movable sleeve 14 and fixed block 15, movable sleeve 14 cup joints on fixed block 15, movable sleeve 14 keeps away from fixed block 15 one end and spout 5 sliding connection, fixed block 15 keeps away from movable sleeve 14 one end and connecting axle 10 fixed connection, when the optical cable receives the extrusion, because connecting axle 10 has elasticity, in order to reserve sufficient space, connecting axle 10 can inevitable emergence deformation, corresponding connecting axle 10 can drive fixed block 15 and remove to movable sleeve 14, movable sleeve 14 slides in spout 5, the orbit and the direction of control connecting axle 10 deformation.
In the invention, when a user uses the device, when the optical cable needs to be bent, the structure of the first outer sleeve 2 can be correspondingly deformed, the arc shaft 3 and the arc sleeve 1 can move relatively, meanwhile, because the isolating strips 7 are isolated among the first optical fibers 4, the mutual influence among the first optical fibers 4 is avoided, a moving mechanism and an elastic mechanism are arranged at the position where the optical cable winding displacement needs to be bent, the elastic sheet 16 can approach the center of an acting force, the first sliding block 13 can slide relative to the sliding groove 5, and meanwhile, the second sliding block 12 can also slide, so that each elastic sheet 16 deviates from the center of the acting force, enough space is reserved for the second optical fiber 9 and the first optical fiber 4 to bend, and the condition that the two sides of the second optical fiber 9 and the first optical fiber 4 are excessively stressed is avoided.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a resistant curved strenghthened type optical cable of radiation resistance, includes first outer tube (2), first interior sleeve pipe (11) and is located first outer tube (2) with the activity layer between first interior sleeve pipe (11), its characterized in that, be equipped with the activity ring in the activity layer, the activity ring includes a plurality of arc axles (3) and a plurality of arc cover (1), the both ends of arc axle (3) are inserted respectively and are established adjacently in arc cover (1).
2. The radiation and bend resistant reinforced fiber optic cable of claim 1,
a plurality of first optical fibers (4) are arranged in the first inner sleeve (11), and isolating bars (7) are arranged among the first optical fibers (4).
3. The radiation and bend resistant reinforced fiber optic cable of claim 2,
it is a plurality of the inboard of first optic fibre (4) is equipped with interior sleeve pipe of second (8) and is located second outer sleeve pipe (6) in interior sleeve pipe of second (8), be provided with the elastic layer between interior sleeve pipe of second (8) and second outer sleeve pipe (6) spout (5) have been seted up to the inner wall of interior sleeve pipe of second (8), sliding connection has a plurality of moving mechanism on spout (5).
4. The radiation-resistant and bend-resistant reinforced optical cable according to claim 3, wherein the movable mechanism comprises a first slider (13) and an elastic sheet (16), the first slider (13) is connected with the sliding groove (5) in a sliding manner, two ends of the elastic sheet (16) are rotatably connected with the first slider (13), a second slider (12) is sleeved on the elastic sheet (16), an arc-shaped groove corresponding to the second slider (12) is formed in the outer side of the second outer sleeve (6), the second slider (12) is connected with the arc-shaped groove in a sliding manner, a plurality of connecting shafts (10) are fixedly connected between the elastic sheets (16), and the elastic mechanism is arranged on the connecting shafts (10).
5. The radiation-resistant and bend-resistant reinforced optical cable according to claim 4, wherein the elastic mechanism comprises a movable sleeve (14) and a fixed block (15), and the movable sleeve (14) is sleeved on the fixed block (15).
6. The radiation-resistant and bend-resistant reinforced optical cable according to claim 1, wherein two ends of the arc shaft (3) are provided with limiting blocks, and limiting grooves corresponding to the limiting blocks are formed in the arc sleeve (1).
7. A radiation-resistant bend-resistant reinforced optical cable is characterized in that,
including first outer tube (2) and a plurality of first optic fibre (4), it is a plurality of the inboard of first optic fibre (4) is equipped with interior sleeve pipe (8) of second and is located sleeve pipe (8) second outer tube (6) in the second, be provided with the elastic layer between sleeve pipe (8) in the second and second outer tube (6) spout (5) have been seted up to the inner wall of sleeve pipe (8) in the second, sliding connection has a plurality of moving mechanism on spout (5).
8. The radiation and bend resistant reinforced fiber optic cable of claim 7,
the movable mechanism comprises a first sliding block (13) and an elastic sheet (16), the first sliding block (13) is connected with a sliding groove (5) in a sliding mode, two ends of the elastic sheet (16) are rotatably connected with the first sliding block (13), a second sliding block (12) is sleeved on the elastic sheet (16), an arc-shaped groove corresponding to the second sliding block (12) is formed in the outer side of the second outer sleeve (6), the second sliding block (12) is connected with the arc-shaped groove in a sliding mode, the second sliding block is a plurality of connecting shafts (10) fixedly connected between the elastic sheets (16), and the elastic mechanism is arranged on the connecting shafts (10).
9. The radiation-resistant and bend-resistant reinforced optical cable according to claim 8, wherein the elastic mechanism comprises a movable sleeve (14) and a fixed block (15), and the movable sleeve (14) is sleeved on the fixed block (15).
10. The radiation-resistant and bend-resistant reinforced optical cable according to claim 7, further comprising a first inner sleeve (11) and an active layer located between the first outer sleeve (2) and the first inner sleeve (11), wherein an active ring is disposed in the active layer, the active ring comprises a plurality of arc-shaped shafts (3) and a plurality of arc-shaped sleeves (1), and two ends of each arc-shaped shaft (3) are respectively inserted into the adjacent arc-shaped sleeves (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010401777.4A CN111505779B (en) | 2018-07-05 | 2018-07-05 | Radiation-resistant and bending-resistant reinforced optical cable |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010401777.4A CN111505779B (en) | 2018-07-05 | 2018-07-05 | Radiation-resistant and bending-resistant reinforced optical cable |
| CN201810728234.6A CN108802936B (en) | 2018-07-05 | 2018-07-05 | Radiation-resistant and bending-resistant reinforced optical cable |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810728234.6A Division CN108802936B (en) | 2018-07-05 | 2018-07-05 | Radiation-resistant and bending-resistant reinforced optical cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111505779A CN111505779A (en) | 2020-08-07 |
| CN111505779B true CN111505779B (en) | 2021-06-25 |
Family
ID=64074682
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810728234.6A Active CN108802936B (en) | 2018-07-05 | 2018-07-05 | Radiation-resistant and bending-resistant reinforced optical cable |
| CN202010401777.4A Active CN111505779B (en) | 2018-07-05 | 2018-07-05 | Radiation-resistant and bending-resistant reinforced optical cable |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810728234.6A Active CN108802936B (en) | 2018-07-05 | 2018-07-05 | Radiation-resistant and bending-resistant reinforced optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN108802936B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782407B (en) * | 2019-03-26 | 2020-06-02 | 浙江大丰管网有限公司 | Communication optical cable and manufacturing equipment |
| CN111352198A (en) * | 2020-04-17 | 2020-06-30 | 田朝阳 | Impact-resistant optical fiber for 5G communication |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102673A (en) * | 1986-01-29 | 1987-11-04 | 比克有限公司 | Optical cable |
| EP0762171A1 (en) * | 1995-08-01 | 1997-03-12 | AT&T Corp. | Sub-miniature optical fiber cables, and apparatuses and methods for making the sub-miniature optical fiber cables |
| EP0816885A2 (en) * | 1996-06-18 | 1998-01-07 | Brugg Telecom AG | Optical cable with armouring and use of the same |
| JP2000180679A (en) * | 1998-12-10 | 2000-06-30 | Hitachi Cable Ltd | Tape slot-type optical fiber cable |
| CN103733104A (en) * | 2011-07-29 | 2014-04-16 | 康宁光缆系统有限责任公司 | Fiber optic cable seal and/or strain relief members |
| CN206321836U (en) * | 2016-12-26 | 2017-07-11 | 江苏盈科通信科技有限公司 | A kind of rodent-resistant cable |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8913862B1 (en) * | 2013-09-27 | 2014-12-16 | Corning Optical Communications LLC | Optical communication cable |
| CN103941365A (en) * | 2014-04-18 | 2014-07-23 | 上海亨通宏普通信技术有限公司 | Ultra-flexible armored cable, ultra-flexible armored optical patch cord and optical cable crimping device for manufacture |
| CN105929503B (en) * | 2016-06-12 | 2022-10-28 | 中国电子科技集团公司第八研究所 | Loose-sleeve lapping reinforced buffer type flexible irradiation-resistant optical cable and manufacturing method thereof |
| CN206321839U (en) * | 2016-12-26 | 2017-07-11 | 江苏盈科通信科技有限公司 | A kind of termite proof cable |
-
2018
- 2018-07-05 CN CN201810728234.6A patent/CN108802936B/en active Active
- 2018-07-05 CN CN202010401777.4A patent/CN111505779B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102673A (en) * | 1986-01-29 | 1987-11-04 | 比克有限公司 | Optical cable |
| EP0762171A1 (en) * | 1995-08-01 | 1997-03-12 | AT&T Corp. | Sub-miniature optical fiber cables, and apparatuses and methods for making the sub-miniature optical fiber cables |
| EP0816885A2 (en) * | 1996-06-18 | 1998-01-07 | Brugg Telecom AG | Optical cable with armouring and use of the same |
| JP2000180679A (en) * | 1998-12-10 | 2000-06-30 | Hitachi Cable Ltd | Tape slot-type optical fiber cable |
| CN103733104A (en) * | 2011-07-29 | 2014-04-16 | 康宁光缆系统有限责任公司 | Fiber optic cable seal and/or strain relief members |
| CN206321836U (en) * | 2016-12-26 | 2017-07-11 | 江苏盈科通信科技有限公司 | A kind of rodent-resistant cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108802936B (en) | 2020-06-12 |
| CN108802936A (en) | 2018-11-13 |
| CN111505779A (en) | 2020-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2278372B1 (en) | Fiber optic cables and methods for forming the same | |
| CN111505779B (en) | Radiation-resistant and bending-resistant reinforced optical cable | |
| US6101305A (en) | Fiber optic cable | |
| US6836603B1 (en) | Optical fiber cables | |
| CN208283608U (en) | A kind of all dielectric dry type indoor and outdoor optical cable | |
| KR102440833B1 (en) | Ribbon-Tube Type Optical Cable | |
| CN111987663A (en) | Anti-bending cable protection pipe | |
| CA2005114A1 (en) | All-dielectric optical fiber cable having enhanced fiber access | |
| US11886026B2 (en) | Optical fiber ribbon, optical fiber cable, and connector-equipped optical fiber cord | |
| CN211719337U (en) | Environment-friendly anti-press photoelectric composite cable | |
| CN210606698U (en) | Stretch-proofing anti-bending cable for power transmission | |
| CN208507252U (en) | A kind of express elevator optoelectronic composite cable | |
| CN117270129A (en) | Core number dense optical fiber ribbon cable | |
| CN217561797U (en) | Optical cable pipeline fixing mechanism | |
| CN212933068U (en) | High-strength access type optical fiber cable | |
| CN210427883U (en) | Reinforced skeleton remote optical cable | |
| JPH09243886A (en) | Nonmetallic optical fiber cable | |
| CN106125242A (en) | A kind of flat optical cable protecting lettering | |
| CN210835364U (en) | Novel plastic optical fiber cable | |
| CN214671935U (en) | Ultraviolet radiation preventing cable for double-insulated wire | |
| CN113514926A (en) | Optical fiber ribbon cable | |
| CN113568119B (en) | Dry-type all-dielectric fire-resistant optical cable and manufacturing method thereof | |
| CN218917735U (en) | Three-unit optical cable | |
| CN218730070U (en) | Anti-winding insulated wire cable | |
| CN209821453U (en) | High-pressure-resistant low-bending-damage optical fiber |
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 |