CN111736274B - Anti-bending optical fiber jumper convenient for wire arrangement and use method thereof - Google Patents
Anti-bending optical fiber jumper convenient for wire arrangement and use method thereof Download PDFInfo
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- CN111736274B CN111736274B CN202010709008.0A CN202010709008A CN111736274B CN 111736274 B CN111736274 B CN 111736274B CN 202010709008 A CN202010709008 A CN 202010709008A CN 111736274 B CN111736274 B CN 111736274B
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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
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/389—Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet 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
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3847—Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces
- G02B6/3849—Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces using mechanical protective elements, e.g. caps, hoods, sealing membranes
-
- 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
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3887—Anchoring optical cables to connector housings, e.g. strain relief features
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention discloses an anti-bending optical fiber jumper convenient for arranging wires and a using method thereof, belonging to the field of optical fiber communication, the anti-bending optical fiber jumper convenient for arranging wires and the using method thereof, the anti-bending optical fiber jumper comprises a plurality of pairs of main cables, a bending pipe is arranged between the pair of main cables, a segment connector is connected between the bending pipe and the main cable, the bending pipe comprises a metal corrugated pipe fixedly connected between the pair of segment connectors, a rubber isolation pipe is arranged at the inner side of the metal corrugated pipe, a reaction layer is fixedly connected on the outer wall of the rubber isolation pipe, a liquid storage layer matched with the reaction layer is fixedly connected on the inner wall of the metal corrugated pipe, a thin-wall glass isolation layer is connected between the reaction layer and the liquid storage layer, the optical fiber jumper can be divided into a plurality of straight sections and bending sections, after the bending sections are bent, a solidification layer is formed between the metal corrugated pipe and the rubber isolation pipe, the bent pipe after bending is fixed and shaped, and the flat cable of the circuit is convenient.
Description
Technical Field
The invention relates to the field of optical fiber communication, in particular to an anti-bending optical fiber jumper convenient for wire arrangement and a using method thereof.
Background
The optical fiber jumper (also called optical fiber connector) means that connector plugs are arranged at two ends of an optical cable and are used for realizing movable connection of an optical path; one end of the optical fiber is provided with a plug, and the optical fiber is called a tail fiber. Optical fiber jumpers are similar to coaxial cables except that there is no mesh shielding. The center is the glass core through which the light propagates. In the multimode optical fiber, the core diameter is 50 to 65 μm, and approximately corresponds to the thickness of human hair. And the diameter of the single-mode optical fiber core is 8-10 μm. The core is surrounded by a glass envelope having a lower refractive index than the core to retain the optical fiber within the core. And a thin plastic outer cover is arranged outside the optical fiber patch cord for protecting the envelope, and the optical fiber patch cord is used for patch cord from equipment to an optical fiber wiring link. The optical fiber protective layer has a thicker protective layer, is generally used for connection between an optical transceiver and a terminal box, and is applied to the fields of optical fiber communication systems, optical fiber access networks, optical fiber data transmission, local area networks and the like.
Secondly, in the indoor and outdoor installation of equipment, because the length of the optical fiber jumper is mostly fixed, and the distance between the equipment is indefinite, the optical fiber jumper with a long length is usually added when the optical fiber jumper is installed, the existing technical personnel often arrange the wires through the flat cable, the occupied space of the optical fiber of a single coil is large, the optical fiber is also easy to be wound together with other lines, and the wire arrangement during the future maintenance is greatly troublesome.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide an anti-bending optical fiber jumper convenient for wire arrangement and a using method thereof, the optical fiber jumper is divided into a plurality of straight sections and bending sections, the bending sections are metal corrugated pipes, when the bending sections are bent, thin-wall glass isolating layers are broken, a reaction layer is mixed with substances in a liquid storage layer, so that a solidification layer is formed between the metal corrugated pipes and a rubber isolating pipe, the bent pipes after being bent are fixed and shaped, the bending pipes keep bending angles, so that the wire arrangement and the wire arrangement are convenient during the wire arrangement, a limit protection ring is arranged inside the straight sections, the main wire cable can not be bent greatly under the action of the limit protection ring, the main wire cable is prevented from being bent, the optical fiber is prevented from being broken, the straight sections are kept straight during the wire arrangement, the regular wire arrangement is carried out by the scheme, and the complex wire arrangement condition formed by winding and interlacing of a plurality of wires is effectively prevented, the wire arrangement and the work of the maintenance personnel in the future are greatly facilitated.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
An anti-bending optical fiber jumper convenient for wire arrangement and a use method thereof, the anti-bending optical fiber jumper comprises a plurality of pairs of main cables, a bending pipe is arranged between the main cables, a segment connector is connected between the bending pipe and the main cable, the main cable comprises an optical fiber main body, the outer side of the optical fiber main body is coated with a PVC protection pipe, the inner wall of the PVC protection pipe is fixedly connected with a plurality of spacing protection rings which are uniformly distributed, the spacing protection rings are sleeved on the optical fiber main body, the bending pipe comprises a metal corrugated pipe which is fixedly connected between the segment connectors, the inner side of the metal corrugated pipe is provided with a rubber isolation pipe, the rubber isolation pipe is clamped with the segment connectors, the outer wall of the rubber isolation pipe is fixedly connected with a reaction layer, the inner wall of the metal corrugated pipe is fixedly connected with a liquid storage layer matched with the reaction layer, the thin-wall glass isolation layer is connected between the reaction layer and the liquid storage layer, the optical fiber jumper can be divided into a plurality of straight sections and bent sections, the bent sections are metal corrugated pipes, after the bent sections are bent, the thin-wall glass isolation layer is broken, the reaction layer is mixed with substances in the liquid storage layer, a solidification layer is formed between the metal corrugated pipes and the rubber isolation pipes, the bent pipes after being bent are fixed and shaped, the bent pipes keep bent angles, so that the wire arrangement and line arrangement during the light laying are convenient, the limiting protection rings are arranged inside the straight sections, the main cable cannot be bent to a large extent through the action of the limiting protection rings, the main cable is prevented from being bent, the optical fiber is prevented from being broken, the straight sections are kept straight when the circuit is laid, the regular type wire arrangement with straight lines and broken lines is realized when the wire arrangement is carried out, and the complex wire arrangement condition formed by winding and staggering a plurality of circuits is effectively prevented, the wire arrangement and the work of the maintenance personnel in the future are greatly facilitated.
Further, the reaction layer is a gypsum bandage, aqueous solution is stored in the liquid storage layer, 10-12% of polyurethane glue is mixed in the aqueous solution, and the aqueous solution reacts with the gypsum bandage to generate a hard gypsum solidification layer to fix the bending pipe.
Furthermore, the thin-wall glass isolation layer is made of brittle glass, so that the thin-wall glass isolation layer is easy to damage when the bending pipe is bent, and the thin-wall glass isolation layer is high in brittleness and is integrally cracked after being broken, so that the reaction liquid stored in the liquid storage layer can completely permeate into the reaction layer.
Further, the festival section connector is regular hexahedron, the terminal surface upper berth of festival section connector is equipped with the magnet layer, and after the cable was curled up, two upper and lower festival section connectors can attract each other, make things convenient for the cable to coil up and make fixed accomodating.
Furthermore, the limiting protection ring is an elastic metal ring with a U-shaped cross section, a rubber buffer layer is coated on the surface of the limiting protection ring, the optical fiber main body is protected by the U-shaped metal ring, and two adjacent U-shaped metal rings are mutually limited to limit the local deformation of the main cable, so that the local bending amplitude of the main cable is not too large easily.
Further, the liquid storage layer comprises a sealing rubber sleeve fixedly connected to the thin-wall glass isolation layer, the aqueous solution is stored in the sealing rubber sleeve, and the sealing rubber and the thin-wall glass isolation layer are bonded through a sealing adhesive, so that the liquid storage layer is guaranteed to be sealed when the thin-wall glass isolation layer is intact.
Further, two pairs of strip-shaped grooves are cut in the outer wall of the optical fiber main body, and shaping aluminum strips are fixedly connected in the strip-shaped grooves.
An anti-bending optical fiber jumper convenient for arranging wires is provided, and the use method comprises the following steps:
s1, during laying, technicians draw lines in a laying site, draw a laying route map and determine the routing route of the optical fiber line;
s2, bending the bending pipe at the designated position on the whole cable according to the route map, wherein when the bending pipe is bent, the thin-wall glass isolation layer is broken, so that liquid in the liquid storage layer is mixed with substances in the reaction layer to react, a solidification layer is formed between the metal corrugated pipe and the rubber isolation pipe, and the bent pipe is shaped under the fixing action of the solidification layer so as to keep the bending pipe in a bending state;
s3, the main cable is used for laying straight line segments, and the main cable is prevented from bending to a large extent at the laying local part under the action of a limiting protection ring on the optical fiber main body, so that the cable is prevented from being wound and broken when being laid;
s4, after laying, installing optical fiber connectors on main cables at two ends of the cables to finish laying of the cables
2. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the scheme divides the optical fiber jumper into a plurality of straight sections and bending sections, wherein the bending sections are metal corrugated pipes, after the bending section is bent, the thin-wall glass isolation layer is broken, so that the reaction layer is mixed with substances in the liquid storage layer, a solidification layer is formed between the metal corrugated pipe and the rubber isolation pipe, fixing and shaping the bent pipe to keep the bent angle of the bent pipe so as to facilitate the wire arrangement and the wire arrangement during the light laying, arranging a limit protection ring inside the straight section, through spacing protection ring effect, make the thread cable can not produce bending by a relatively large margin, prevent that the thread cable from bending, prevent the optic fibre rupture, straight section keeps straight when making the circuit lay, and the regular form winding displacement that is sharp and broken line when this scheme carries out the winding displacement effectively prevents that many circuits from twining crisscross and the complicated winding displacement condition that forms from producing, has greatly made things convenient for reason line and maintenance personal's work in the future.
(2) The thin-wall glass isolation layer is brittle glass, so that the thin-wall glass isolation layer is easy to damage when the bending pipe is bent, and the thin-wall glass isolation layer is high in brittleness and is integrally cracked after being broken, so that the reaction liquid stored in the liquid storage layer can completely permeate into the reaction layer.
(3) The limiting protection ring is an elastic metal ring with a U-shaped cross section, a rubber buffer layer is coated on the surface of the limiting protection ring, the optical fiber main body is protected through the U-shaped metal ring, and the adjacent two U-shaped metal rings are mutually limited to limit the local deformation of the main cable, so that the local bending amplitude of the main cable is not too large easily.
(4) The liquid storage layer comprises a sealing rubber sleeve fixedly connected to the thin-wall glass isolation layer, the aqueous solution is stored in the sealing rubber sleeve, and the sealing rubber and the thin-wall glass isolation layer are bonded through a sealing adhesive, so that the liquid storage layer is guaranteed to be sealed when the thin-wall glass isolation layer is intact.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a partial perspective view of the present invention as deployed;
FIG. 3 is a partial cross-sectional view of the present invention;
FIG. 4 is a schematic view of the structure at A in FIG. 3;
fig. 5 is a schematic structural diagram at B in fig. 3.
The optical fiber cable comprises a main cable 1, an optical fiber main body 101, a PVC protective tube 102, a 103-limiting protective ring, a 104-shaped aluminum strip, a 2-segment connector, a 3-bending tube, a 301 metal corrugated tube, a 302 rubber isolation tube, a 303 reaction layer, a 304 thin-wall glass isolation layer and a 305 liquid storage layer.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1: referring to fig. 1-5, an anti-bending optical fiber jumper convenient for wire arrangement and a method for using the same, the anti-bending optical fiber jumper comprises a plurality of pairs of main cables 1, a bending pipe 3 is arranged between the pair of main cables 1, a segment connector 2 is connected between the bending pipe 3 and the main cable 1, the segment connector 2 is a regular hexahedron, a magnet layer is laid on the end surface of the segment connector 2, after the cables are rolled up, the upper and lower segment connectors 2 can attract each other to facilitate the cables to be coiled up for fixed storage, the main cable 1 comprises an optical fiber main body 101, the outer side of the optical fiber main body 101 is coated with a PVC protection pipe 102, the inner wall of the PVC protection pipe 102 is fixedly connected with a plurality of evenly distributed limiting protection rings 103, the limiting protection rings 103 are sleeved on the optical fiber main body 101, two pairs of strip-shaped grooves are chiseled on the outer wall of the optical fiber main body 101, and a shaped aluminum strip 104 is fixedly connected in the strip-shaped grooves, the limiting protection ring 103 is an elastic metal ring with a U-shaped cross section, the surface of the limiting protection ring 103 is coated with a rubber buffer layer, the optical fiber main body 101 is protected by the U-shaped metal ring, and two adjacent U-shaped metal rings are mutually limited to limit the local deformation of the main cable 1, so that the local bending amplitude of the main cable 1 is not too large easily.
Referring to fig. 3-5, the bending pipe 3 includes a metal corrugated pipe 301 fixedly connected between a pair of segment connectors 2, a rubber isolation pipe 302 is disposed on an inner side of the metal corrugated pipe 301, the rubber isolation pipe 302 is connected with the pair of segment connectors 2 in a clamping manner, a reaction layer 303 is fixedly connected to an outer wall of the rubber isolation pipe 302, a liquid storage layer 305 matched with the reaction layer 303 is fixedly connected to an inner wall of the metal corrugated pipe 301, a thin-wall glass isolation layer 304 is connected between the reaction layer 303 and the liquid storage layer 305, the thin-wall glass isolation layer 304 is brittle glass, so that the thin-wall glass isolation layer 304 is easy to be damaged when the bending pipe 3 is bent, since the thin-wall glass isolation layer 304 has high brittleness, the thin-wall glass isolation layer 304 is broken integrally after the bending pipe is bent, so that the reaction liquid stored in the liquid storage layer 305 can fully permeate into the reaction layer 303 through cracks of the thin-wall glass isolation layer 304, and the reaction layer 303 is a plaster bandage, the storage liquid layer 305 is internally stored with aqueous solution, the aqueous solution is internally mixed with 10-12% polyurethane glue, the reaction with a plaster bandage is carried out through the aqueous solution, a hard plaster solidified layer is generated to fix a bending pipe, the polyurethane glue can be further solidified to the plaster bandage to ensure that the bending pipe 3 can be stably kept in a bending state, the storage liquid layer 305 comprises a sealing rubber sleeve fixedly connected to the thin-wall glass isolation layer 304, the aqueous solution is stored in the sealing rubber sleeve, a sealing adhesive is arranged between the sealing rubber and the thin-wall glass isolation layer 304, and the storage liquid layer 305 is guaranteed to be kept sealed when the thin-wall glass isolation layer 304 is intact.
An anti-bending optical fiber jumper convenient for arranging wires is provided, and the use method comprises the following steps:
s1, during laying, technicians draw lines in a laying site, draw a laying route map and determine the routing route of the optical fiber line;
s2, bending the bending pipe 3 at the designated position on the whole cable according to the route map, wherein when the bending pipe 3 is bent, the thin-wall glass isolation layer 304 is broken to enable the liquid in the liquid storage layer 305 to be mixed and reacted with the substance in the liquid storage layer 305, so that a solidified layer is formed between the metal corrugated pipe 301 and the rubber isolation pipe 302, and the bent pipe 3 is shaped through the fixing action of the solidified layer, so that the bent pipe 3 is kept in a bent state;
s3, the main cable 1 is used for laying straight line segments, and the main cable 1 is prevented from bending to a large extent at the laying local part under the action of the limiting protection ring 103 on the optical fiber main body 101, so that the winding and breaking of the line during cable laying are prevented;
and S4, after the laying is finished, installing optical fiber connectors on the main cables 1 at the two ends of the cables to finish the laying of the cables.
The scheme divides the optical fiber jumper into a plurality of straight sections and bending sections, the bending sections are metal corrugated pipes, after the bending sections are bent, the thin-walled glass isolation layer 304 is broken, so that the reaction layer 303 is mixed with the substances in the liquid storage layer 305, thereby forming a solidified layer between the metal corrugated pipe 301 and the rubber isolation pipe 302, fixing and shaping the bent pipe 3 to ensure that the bent pipe 3 keeps the bending angle so as to facilitate the wire arrangement and the wire arrangement during the light laying, and a limit protection ring 103 is arranged inside the straight section, through spacing protection ring 103 effect, make thread cable 1 can not produce bending by a relatively large margin, prevent that thread cable 1 from bending, prevent the optic fibre rupture, straight section keeps straight when making the circuit lay, is the regular type winding displacement of straight line and broken line when this scheme carries out the winding displacement, effectively prevents that many circuit winding is crisscross and the complicated winding displacement condition that forms from producing, has greatly made things convenient for reason line and maintenance personal's work in the future.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (7)
1. The utility model provides an anti-bending optical fiber jumper convenient to winding displacement, includes many pairs of main cable (1), its characterized in that: a pair of be equipped with between main cable (1) bend pipe (3), it is connected with segment connector (2) to bend between pipe (3) and main cable (1), main cable (1) includes optic fibre main part (101), the outside cladding of optic fibre main part (101) has PVC protection tube (102), fixedly connected with a plurality of evenly distributed's spacing protection ring (103) on the inner wall of PVC protection tube (102), and spacing protection ring (103) cup joint on optic fibre main part (101), bend pipe (3) including fixed connection metal bellows (301) between a pair of segment connector (2), the inboard of metal bellows (301) is equipped with rubber isolation tube (302), rubber isolation tube (302) and a pair of segment connector (2) joint have a reaction, fixed connection layer (303) on the outer wall of rubber isolation tube (302), a liquid storage layer (305) matched with the reaction layer (303) is fixedly connected to the inner wall of the metal corrugated pipe (301), and a thin-wall glass isolation layer (304) is connected between the reaction layer (303) and the liquid storage layer (305);
the using method comprises the following steps:
s1, during laying, technicians draw lines in a laying site, draw a laying route map and determine the routing route of the optical fiber line;
s2, bending the bending pipe (3) at the designated position on the whole cable according to the route map, wherein when the bending pipe (3) is bent, the thin-wall glass isolation layer (304) is broken to enable the liquid in the liquid storage layer (305) to be mixed and reacted with the substance in the reaction layer (303), so that a solidified layer is formed between the metal corrugated pipe (301) and the rubber isolation pipe (302), and the bent pipe (3) after being bent is shaped through the fixing effect of the solidified layer, so that the bending pipe (3) is kept in a bent state;
s3, the main cable (1) is used for laying straight line segments, and the main cable (1) is prevented from bending to a large extent at the laying local part under the action of a limiting protection ring (103) on the optical fiber main body (101), so that the line winding and the line breaking during cable laying are prevented;
and S4, after the laying is finished, installing optical fiber connectors on the main cables (1) at the two ends of the cables to finish the laying of the cables.
2. The bend-resistant optical fiber jumper convenient for flat cable according to claim 1, wherein: the reaction layer (303) is a plaster bandage, the liquid storage layer (305) is internally stored with aqueous solution, and 10-12% of polyurethane glue is mixed in the aqueous solution.
3. The bend-resistant optical fiber jumper convenient for flat cable according to claim 1, wherein: the thin-walled glass isolation layer (304) is brittle glass.
4. The bend-resistant optical fiber jumper convenient for flat cable according to claim 1, wherein: the segment connector (2) is a regular hexahedron, and a magnet layer is paved on the end face of the segment connector (2).
5. The bend-resistant optical fiber jumper convenient for flat cable according to claim 1, wherein: the limiting protection ring (103) is an elastic metal ring with a U-shaped section, and the surface of the limiting protection ring (103) is coated with a rubber buffer layer.
6. The bend-resistant optical fiber jumper convenient for flat cable according to claim 2, wherein: the liquid storage layer (305) comprises a sealing rubber sleeve fixedly connected to the thin-wall glass isolation layer (304), the aqueous solution is stored in the sealing rubber sleeve, and a sealing adhesive is arranged between the sealing rubber and the thin-wall glass isolation layer (304).
7. The bend-resistant optical fiber jumper convenient for flat cable according to claim 1, wherein: two pairs of strip-shaped grooves are cut in the outer wall of the optical fiber main body (101), and shaping aluminum strips (104) are fixedly connected in the strip-shaped grooves.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010709008.0A CN111736274B (en) | 2020-07-22 | 2020-07-22 | Anti-bending optical fiber jumper convenient for wire arrangement and use method thereof |
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| CN202010709008.0A CN111736274B (en) | 2020-07-22 | 2020-07-22 | Anti-bending optical fiber jumper convenient for wire arrangement and use method thereof |
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| CN111736274B true CN111736274B (en) | 2021-12-21 |
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| JP2005185049A (en) * | 2003-12-22 | 2005-07-07 | Sumitomo Electric Ind Ltd | Communication cable and protective tube for communication line |
| CN102478410A (en) * | 2010-11-24 | 2012-05-30 | 西安金和光学科技有限公司 | Bamboo joint type quasi-distribution optical fiber sensor |
| CN103331347B (en) * | 2013-06-24 | 2016-04-20 | 重庆建设机电有限责任公司 | The flexible bending method of metal tube |
| CN105301719A (en) * | 2015-10-29 | 2016-02-03 | 上海顺簿贸易经营服务部 | Optical fiber jumper with spring protection layer |
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Effective date of registration: 20211207 Address after: 212000 No. 138, Zhenxing Road, Danyang City, Zhenjiang City, Jiangsu Province Applicant after: JIANGSU KEXIN PHOTOELECTRIC SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 235200 No. 54, Chenzhuang village, jiangchenzhuang village, sunweizi Township, Suzhou City, Anhui Province Applicant before: Chen Jiajia |
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