CN111812792A - OPGW optical cable splice closure fixing device - Google Patents
OPGW optical cable splice closure fixing device Download PDFInfo
- Publication number
- CN111812792A CN111812792A CN202010814543.2A CN202010814543A CN111812792A CN 111812792 A CN111812792 A CN 111812792A CN 202010814543 A CN202010814543 A CN 202010814543A CN 111812792 A CN111812792 A CN 111812792A
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- China
- Prior art keywords
- connecting plate
- optical cable
- hole
- disc
- fixing device
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- 230000003287 optical effect Effects 0.000 title claims abstract description 83
- 238000007789 sealing Methods 0.000 claims description 17
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims 3
- 238000003780 insertion Methods 0.000 claims 3
- 239000000835 fiber Substances 0.000 description 24
- 230000004927 fusion Effects 0.000 description 11
- 238000002844 melting Methods 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- 238000003466 welding Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
- G02B6/4446—Cable boxes, e.g. splicing boxes with two or more multi fibre cables
- G02B6/4447—Cable boxes, e.g. splicing boxes with two or more multi fibre cables with divided shells
-
- 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
- G02B6/4439—Auxiliary devices
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention relates to an OPGW optical cable splice closure, which comprises an upper closure, a lower closure and a disc, wherein the upper closure, the lower closure and the disc are used for clamping and fixing an optical cable; a plurality of concave half-hole grooves are formed in the two butted inner surfaces of the upper box and the lower box, and the corresponding upper half-hole groove and the corresponding lower half-hole groove are butted to form a through hole for the optical cable to pass through; the lower surface of the lower box extends vertically downwards to form a first connecting plate; the lower surface of the lower box is also connected with a fixing device with an L-shaped structure, the vertical side surface of the fixing device is connected with the lower box, and one end of the horizontal side surface, which is far away from the vertical side surface, is provided with a second connecting plate which extends upwards; the first connecting plate and the second connecting plate are both fixedly connected with the disc; a convex fixing seat is arranged on the inner side wall of the horizontal side face of the fixing device, a through mounting hole is formed in the fixing seat, and an adjusting screw assembly is screwed in the mounting hole to fix the fixing device.
Description
Technical Field
The invention relates to an OPGW optical cable splice closure fixing device, and belongs to the technical field of electric power communication.
Background
The power optical cable has the important characteristics that the power optical cable can be laid along the same pole (same channel) of a power transmission and distribution line, and the sudden leap forward of a power communication network is accelerated due to abundant power grid channels. The OPGW optical cable is used for placing optical fibers in a ground wire of an overhead high-voltage transmission line to form an optical fiber communication network on the transmission line, and the structural form has the double functions of the ground wire and communication. The OPGW optical cable needs to be connected with a wiring structure when a communication network is established so as to ensure long-distance stringing of the optical cable, the optical cable connection time consumption mainly means the time consumption of the whole process of standardized operation for forming a continuous optical cable line in power communication, and the optical cable connection mode has no specific operation requirement and execution standard and lacks an effective fixing tool, so the optical cable connection operation consumes long time, and the optical cable line connection work efficiency and the service level are seriously influenced.
In the prior art, the standardized operation of optical cable connection is totally divided into twelve links, optical cable fusion is the most critical step, which accounts for 87.2% of the total connection working time and is the main problem of long time consumption of optical cable connection, and optical cable fusion needs to connect one OPGW optical cable and another OPGW optical cable after being put into a connection box, and comprises the links of stripping the optical cable, fiber core fusion, fiber coiling and the like; the fiber core fusion step in the optical cable fusion takes the longest time, which accounts for 74.2% of the total time of the optical cable fusion, and the fiber core fusion is a process of connecting and fusing bare fibers in optical cables at two ends into a whole by using a fiber fusing machine; after the fiber cores are welded, two optical cables connected in the splice closure need to be fixed in the splice closure and then the splice closure is closed, so that the relevant optical cable welding work is completed. Therefore, in order to shorten the time consumed by the optical cable connection work and improve the optical cable line connection work efficiency and the service level, the fiber core welding link needs to be improved. In the process of fiber core fusion, the optical cable is influenced by self torsion, joint box inclination, external force error collision and the like to generate displacement, a unified standard optical cable fixing mode is not available at present, and a temporary fixing measure of a cable connection box is not provided, so that the problem that the fiber core is easy to swing in the connection process cannot be solved, the fiber core is broken, and the quality and the efficiency of the optical cable fusion are seriously influenced.
Disclosure of Invention
In order to solve the technical problems, the invention provides a fixing device for an optical fiber composite overhead ground wire (OPGW) optical cable splice closure, which can fix the optical cable splice closure, so that the optical cable splice closure is flatly placed and is connected with a welding platform into a whole, thereby facilitating optical cable welding, enabling the optical cable welding to form standardized operation, and further shortening the operation time of optical cable connection.
The technical scheme of the invention is as follows:
an OPGW optical cable splice closure comprises an upper closure, a lower closure and a disc, wherein the upper closure, the lower closure and the disc are used for clamping and fixing optical cables; a plurality of concave half-hole grooves are formed in the two butted inner surfaces of the upper box and the lower box, and the corresponding upper half-hole groove and the corresponding lower half-hole groove are butted to form a through hole for the optical cable to pass through; the lower surface of the lower box extends vertically downwards to form a first connecting plate; the lower surface of the lower box is provided with a fixing device with an L-shaped structure at one end far away from the first connecting plate, the vertical side surface of the fixing device is connected with the lower box, and the end of the horizontal side surface far away from the vertical side surface is provided with a second connecting plate extending upwards; the first connecting plate and the second connecting plate are both fixedly connected with the disc; a convex fixing seat is arranged on the inner side wall of the horizontal side face of the fixing device, a through mounting hole is formed in the fixing seat, and an adjusting screw assembly is screwed in the mounting hole to fix the position of the fixing device.
Further, the adjusting screw assembly comprises a nut for locking the fixing device and a jacking screw; the mounting holes comprise jacks positioned on the upper half part and threaded holes positioned on the lower half part; a clamping table with the diameter smaller than that of the jack is arranged between the jack and the threaded hole; the nut is embedded into the jack and located above the clamping table, and the nut locks and fixes the jacking screw rod penetrating through the threaded hole.
Further, the bottom of the first connecting plate is an outer arc edge protruding downwards; the top of the second connecting plate is an inner arc edge which is sunken downwards; the outer arc edge of the first connecting plate rotates around the connecting point with the disc and slides left and right along the inner arc edge of the second connecting plate.
Furthermore, arc-shaped sliding grooves along the edges of the discs are formed in the side walls, close to the upper box and the lower box, of the discs; the side wall of the first connecting plate facing the disc is provided with an arc-shaped sliding block clamped into the sliding groove.
Furthermore, a circle of sawtooth made of rubber is arranged on the outer side wall of the outer arc edge, and the inner side wall of the inner arc edge is sawtooth which is meshed with the outer arc edge and made of rubber; the sawteeth of the outer arc edge and the inner arc edge face to opposite directions respectively.
Furthermore, the edge of the side wall of the first connecting plate, which faces away from the disc, is also provided with a rotating handle.
Further, a rubber sleeve is arranged at an outlet of the through hole; the rubber sleeve is provided with a first sealing layer connected with the inner side wall of the through hole, a telescopic layer which is in a horn mouth shape and connected with the first sealing layer and a second sealing layer which is fixed on the inner side of the telescopic layer and connected with the optical cable from outside to inside in sequence.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention provides an OPGW optical cable connecting box, which can stably and flatly fix an optical cable to be connected on a fiber melting platform through a fixing device in the optical cable connecting box, solves the problem that a fiber core is easy to swing in the optical cable connecting process in the prior art, improves the optical cable welding quality and efficiency, shortens the average time consumption for connecting 24-core OPGW optical cables in actual operation by 30.5 minutes, improves the welding efficiency by 26.1 percent, realizes the standardization and normalization of an optical cable connecting field, and improves the safety control capability of communication maintenance work.
2. The fixing device in the OPGW optical cable connecting box provided by the invention fixes the position of the OPGW optical cable connecting box through the adjusting screw rod assembly, and the clamping degree of the fixing device and the fusion fiber platform can be adjusted through twisting the adjusting jacking screw rod, so that the optical cable connecting box is fixed, and the optical cable connecting box and the fusion fiber platform are connected into a whole, so that the splice box is placed smoothly.
3. After a first connecting plate of a lower box of the OPGW optical cable connecting box rotates around a connecting point with a disc, the bottom of the first connecting plate can slide along a second connecting plate on a fixing device, the first connecting plate and the second connecting plate are of meshed zigzag structures, the first connecting plate and the second connecting plate are fixed in position after sliding to a required angle and are meshed with each other, the lower box and the upper box can be driven to rotate through rotation of the first connecting plate, fine adjustment of connection positions of optical cables to be connected, which penetrate through semi-hole grooves in the lower box and the upper box, can be achieved, the optical cables can be fixed to be free from shaking during fine adjustment, and the optical cable welding quality and efficiency are improved.
4. The rubber sleeve is provided with a three-layer nested structure, the first sealing layer and the second sealing layer are respectively used for ensuring the seamless sealing state between the inner side wall of the through hole and the optical cable, the telescopic layer can move along with the optical cable in the through hole in a front-back stretching mode, the optical cable cannot be separated from the through hole, and the sealing effect is ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a lower case according to the present invention;
FIG. 3 is a schematic view showing a connection structure of the upper case, the lower case and the fixing device according to the present invention;
FIG. 4 is a schematic view of the fixing device of the present invention;
FIG. 5 is a schematic view of the adjusting screw assembly of the present invention;
FIG. 6 is a schematic view of the structure of a disk according to the present invention;
fig. 7 is a schematic structural view of the rubber sleeve of the present invention.
The reference numbers in the figures denote:
1. putting the box on; 2. a box is lowered; 21. a first connecting plate; 211. an outer arc edge; 212. saw teeth; 22. rotating the handle; 3. a disc; 31. a sliding groove; 32. a slider; 33. a hole; 4. a bolt; 5. a half-bore slot; 6. a through hole; 7. a fixing device; 71. a vertical side; 72. a horizontal side; 73. a second connecting plate; 731. an inner arc edge; 74. a fixed seat; 75. mounting holes; 76. a jack; 77. a threaded hole; 78. clamping a platform; 8. an adjusting screw assembly; 81. a nut; 82. tightly pushing the screw; 9. a rubber sleeve; 91. a first sealing layer; 92. a stretchable layer; 93. and a second sealing layer.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
Referring to fig. 1 to 7, an OPGW optical cable splice closure includes an upper closure 1, a lower closure 2 and a disc 3 for clamping and fixing an optical cable, wherein the upper closure 1 and the lower closure 2 are connected to the disc 3 after being locked by a plurality of bolts 4; a plurality of concave half-hole grooves 5 are formed in the two butted inner surfaces of the upper box 1 and the lower box 2, the corresponding upper half-hole groove 5 and the corresponding lower half-hole groove 5 are butted to form a through hole 6 for an optical cable to pass through, a plurality of holes 33 for the optical cable to pass through are also formed in the disc 3, and the optical cable to be connected sequentially passes through the disc 3 and the through hole 6; the lower surface of the lower box 2 extends vertically downwards to form a first connecting plate 21; a fixing device 7 with an L-shaped structure is further arranged at one end of the lower surface of the lower box 2, which is far away from the first connecting plate 21, a vertical side face 71 of the fixing device 7 is connected with the lower box 2, and a second connecting plate 73 extending upwards is arranged at one end of the horizontal side face 72, which is far away from the vertical side face 71; the first connecting plate 21 and the second connecting plate 73 are both fixedly connected with the disc 3; a convex fixing seat 74 is arranged on the inner side wall of the horizontal side surface 72 of the fixing device 7, a through mounting hole 75 is formed in the fixing seat 74, an adjusting screw assembly 8 is screwed in the mounting hole 75 to fix the position of the fixing device 7, the fixing device 7 is fixed on the fiber melting platform through the adjusting screw assembly 8, and the fixing device 7 fixes the upper box 1, the lower box 2 and the optical cable penetrating through the upper box 1 and the lower box 2 on the fiber melting platform at the same time to prevent the fiber core from swinging in the connection process.
Further, the adjusting screw assembly 8 comprises a nut 81 for locking the fixing device 7 and a tightening screw 82; the mounting holes 75 include a receptacle 76 in the upper half and a threaded hole 77 in the lower half; a clamping table 78 with the diameter smaller than that of the inserting hole 76 is arranged between the inserting hole 76 and the threaded hole 77, and the clamping table 78 is used for fixing the position of the nut 81; the nut 81 is embedded into the jack 76 and located above the clamping table 78, the nut 81 locks the jacking screw rod 82 penetrating through the threaded hole 77, the jacking screw rod 82 is adjusted through twisting, and then the clamping degree of the fixing device 7 and the fiber melting platform realizes the fixation of the optical cable splice box and the optical cable.
Further, the bottom of the first connecting plate 21 is an outer arc edge 211 protruding downwards; the top of the second connecting plate 73 is an inner arc edge 731 which is concave downwards; the outer arc edge 211 of the first connecting plate 21 rotates around the connecting point with the disc 3 and slides left and right along the inner arc edge 731 of the second connecting plate 73, and the inner arc edge 731 of the second connecting plate 73 can provide space for adjusting the position of the first connecting plate 21 by sliding left and right on one hand, and limits the rotation radian and the moving distance of fine adjustment of the first connecting plate 21 on the other hand, so that the distance and the direction of fine adjustment of the optical cable to be connected are limited; the outer side wall of the outer arc edge 211 is provided with a circle of sawtooth 212 made of rubber, and the inner side wall of the inner arc edge 731 is the sawtooth 212 which is meshed with the outer arc edge 211 and made of rubber; the saw teeth 212 of the outer arc edge 211 and the inner arc edge 731 face opposite directions, so that the first connecting plate 21 and the second connecting plate 73 can be stably engaged with each other during rotation, and the fixing and shaking preventing functions are achieved.
Further, arc-shaped sliding grooves 31 along the edges of the disc 3 are formed in the side walls of the disc 3 close to the upper box 1 and the lower box 2; an arc-shaped sliding block 32 clamped into the sliding groove 31 is arranged on the side wall of the first connecting plate 21 facing the disc 3; the edge of the side wall of the first connecting plate 21, which is back to the disc 3, is also provided with a rotating handle 22; the sliding block 32 is clamped into the sliding groove 31, and the rotating handle 22 is pulled at the same time, so that the first connecting plate 21 can rotate around the connecting fixed point with the disc 3, and further the upper box 1, the lower box 2 and the optical cable fixed between the upper box 1 and the lower box 2 can be driven to rotate.
Further, a rubber sleeve 9 is arranged at an outlet of the through hole 6; rubber sleeve 9 has set gradually from outer to interior with 6 inside wall fixed connection's of through-hole first sealing layer 91, be the flexible layer 92 that horn mouth shape and be connected with first sealing layer 91 and fix the second sealing layer 93 of being connected with the optical cable in flexible layer 92 inboard, rubber sleeve 9 sets up to the nested structure of three-layer, first sealing layer 91 and second sealing layer 93 are used for guaranteeing the seamless encapsulated situation between 6 inside walls of through-hole and the optical cable respectively, flexible layer 92 can move along with the optical cable is tensile removal around in through-hole 6, can not deviate from through-hole 6, guarantee sealed effect.
The working principle of the invention is as follows:
when the OPGW optical cable splice box provided by the invention is used, the splice box is firstly placed on a fiber melting platform, the upper box 1 and the lower box 2 are locked by using the bolts 4, so that the half-hole grooves 5 of the upper box 1 and the half-hole grooves 5 of the lower box 2 are in one-to-one correspondence to form a plurality of through holes 6; secondly, the optical cable to be connected sequentially passes through the hole 33 arranged on the disc 3 and the through hole 6 formed by the upper box 1 and the lower box 2, the first connecting plate 21 of the lower box 2 is fixed on the disc 3, the second connecting plate 73 of the fixing device 7 arranged on the lower surface of the lower box 2 is also fixed on the disc 3, and then the lower box 2, the upper box 1, the disc 3, the fixing device 7 and the position of the optical cable to be connected are fixed; finally, a tightening screw 82 in the adjusting screw assembly 8 sequentially passes through the fiber melting platform and the fixing seat 74 on the inner side wall of the horizontal side surface 72 of the fixing device 7 from bottom to top, and is locked by a nut 81 embedded in the mounting hole 75 of the fixing seat 74, so that the fiber melting platform and the fixing device 7 are locked in position, and the fiber core is prevented from shaking to complete connection.
When the position of the splicing box and the fiber melting platform is locked and the splicing position of the optical cable to be spliced needs to be adjusted, the bolt 4 between the first connecting plate 21 and the disc 3 can be loosened, so that the first connecting plate 21 can rotate around the locking position of the bolt 4, the rotating handle 22 is pulled at the moment to drive the outer arc edge 211 of the first connecting plate 21 to slide along the inner arc edge 731 of the second connecting plate 73, and when the position is adjusted to be required, the sawteeth 212 of the outer arc edge 211 can be meshed with the sawteeth 212 of the inner arc edge 731 to be fixed in position after fine adjustment.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. An OPGW optical cable splice closure characterized in that: the optical cable fixing device comprises an upper box (1), a lower box (2) and a disc (3), wherein the upper box (1), the lower box (2) and the disc (3) are used for clamping and fixing optical cables, and the upper box (1) and the lower box (2) are connected to the disc (3) after being locked by a plurality of bolts (4); a plurality of concave half-hole grooves (5) are formed in the two butted inner surfaces of the upper box (1) and the lower box (2), and a through hole (6) for an optical cable to pass through is formed after the corresponding upper half-hole groove and the corresponding lower half-hole groove (5) are butted; the lower surface of the lower box (2) vertically extends downwards to form a first connecting plate (21); one end of the lower surface of the lower box (2), which is far away from the first connecting plate (21), is also provided with a fixing device (7) with an L-shaped structure, the vertical side surface (71) of the fixing device (7) is connected with the lower box (2), and one end of the horizontal side surface (72), which is far away from the vertical side surface (71), is provided with a second connecting plate (73) which extends upwards; the first connecting plate (21) and the second connecting plate (73) are fixedly connected with the disc (3); a convex fixing seat (74) is arranged on the inner side wall of the horizontal side surface (72) of the fixing device (7), a through mounting hole (75) is formed in the fixing seat (74), and an adjusting screw assembly (8) is screwed in the mounting hole (75) to fix the position of the fixing device (7).
2. The OPGW cable closure of claim 1, wherein: the adjusting screw assembly (8) comprises a nut (81) for locking the fixing device (7) and a jacking screw (82); the mounting holes (75) comprise insertion holes (76) in the upper half part and threaded holes (77) in the lower half part; a clamping table (78) with the diameter smaller than that of the insertion hole (76) is arranged between the insertion hole (76) and the threaded hole (77); the nut (81) is embedded into the jack (76) and is positioned above the clamping table (78), and the nut (81) locks and fixes a jacking screw rod (82) penetrating through the threaded hole (77).
3. The OPGW cable closure of claim 2, wherein: the bottom of the first connecting plate (21) is an outer arc edge (211) protruding downwards; the top of the second connecting plate (73) is a downward concave inner arc edge (731); the outer arc edge (211) of the first connecting plate (21) rotates around the connecting point with the disc (3) and slides left and right along the inner arc edge (731) of the second connecting plate (73).
4. The OPGW cable closure of claim 3, wherein: arc-shaped sliding grooves (31) along the edges of the disc (3) are formed in the side walls, close to the upper box (1) and the lower box (2), of the disc (3); the side wall of the first connecting plate (21) facing the disc (3) is provided with an arc-shaped sliding block (32) clamped into the sliding groove (31).
5. The OPGW cable closure of claim 4, wherein: the outer side wall of the outer arc edge (211) is provided with a circle of sawtooth (212) made of rubber, and the inner side wall of the inner arc edge (731) is provided with sawtooth (212) which is meshed with the outer arc edge (211) and made of rubber; the sawteeth (212) of the outer arc edge (211) and the inner arc edge (731) respectively face to opposite directions.
6. The OPGW cable closure of claim 5, wherein: the edge of the side wall of the first connecting plate (21), which is back to the disc (3), is also provided with a rotating handle (22).
7. The OPGW cable closure of claim 6, wherein: a rubber sleeve (9) is arranged at the outlet of the through hole (6); rubber sleeve (9) are from outer to interior set gradually first sealing layer (91) of being connected with through-hole (6) inside wall, be the flexible layer (92) that the horn mouth type just is connected with first sealing layer (91) and fix second sealing layer (93) of being connected with the optical cable in flexible layer (92) inboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010814543.2A CN111812792A (en) | 2020-08-13 | 2020-08-13 | OPGW optical cable splice closure fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010814543.2A CN111812792A (en) | 2020-08-13 | 2020-08-13 | OPGW optical cable splice closure fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111812792A true CN111812792A (en) | 2020-10-23 |
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ID=72859716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010814543.2A Pending CN111812792A (en) | 2020-08-13 | 2020-08-13 | OPGW optical cable splice closure fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111812792A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271182A (en) * | 2007-03-22 | 2008-09-24 | 茹志康 | Joint box sealing device adopting screw cap rotating impacted sealing ring automatic enclasping optical fibre cable |
| CN201229426Y (en) * | 2008-07-23 | 2009-04-29 | 茹志康 | Optical fiber composite overhead ground wire optical cable coupling box |
| CN205176324U (en) * | 2015-12-01 | 2016-04-20 | 国网湖北省电力公司襄阳供电公司 | Optical cable fusion assists mounting fixture |
| CN207976608U (en) * | 2018-04-02 | 2018-10-16 | 国网湖北省电力有限公司襄阳供电公司 | Tool is auxiliarily fixed in fused fiber splice |
| CN109029105A (en) * | 2018-09-21 | 2018-12-18 | 宁波市鄞州区丰余工业产品设计有限公司 | A kind of application method of projectile firing apparatus |
| CN208421349U (en) * | 2018-07-28 | 2019-01-22 | 宁波安博通信设备有限公司 | A kind of cable splice closure |
| CN209842131U (en) * | 2019-05-30 | 2019-12-24 | 中铁建电气化局集团第一工程有限公司 | Portable fixing device for railway communication optical cable connection |
| CN110908039A (en) * | 2019-12-28 | 2020-03-24 | 国家电网有限公司 | Frock suitable for butt fusion of small space optical cable |
-
2020
- 2020-08-13 CN CN202010814543.2A patent/CN111812792A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271182A (en) * | 2007-03-22 | 2008-09-24 | 茹志康 | Joint box sealing device adopting screw cap rotating impacted sealing ring automatic enclasping optical fibre cable |
| CN201229426Y (en) * | 2008-07-23 | 2009-04-29 | 茹志康 | Optical fiber composite overhead ground wire optical cable coupling box |
| CN205176324U (en) * | 2015-12-01 | 2016-04-20 | 国网湖北省电力公司襄阳供电公司 | Optical cable fusion assists mounting fixture |
| CN207976608U (en) * | 2018-04-02 | 2018-10-16 | 国网湖北省电力有限公司襄阳供电公司 | Tool is auxiliarily fixed in fused fiber splice |
| CN208421349U (en) * | 2018-07-28 | 2019-01-22 | 宁波安博通信设备有限公司 | A kind of cable splice closure |
| CN109029105A (en) * | 2018-09-21 | 2018-12-18 | 宁波市鄞州区丰余工业产品设计有限公司 | A kind of application method of projectile firing apparatus |
| CN209842131U (en) * | 2019-05-30 | 2019-12-24 | 中铁建电气化局集团第一工程有限公司 | Portable fixing device for railway communication optical cable connection |
| CN110908039A (en) * | 2019-12-28 | 2020-03-24 | 国家电网有限公司 | Frock suitable for butt fusion of small space optical cable |
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Application publication date: 20201023 |