CN112787295A - Cable transposition erection structure in subdivision cable tunnel - Google Patents
Cable transposition erection structure in subdivision cable tunnel Download PDFInfo
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- CN112787295A CN112787295A CN202110013301.8A CN202110013301A CN112787295A CN 112787295 A CN112787295 A CN 112787295A CN 202110013301 A CN202110013301 A CN 202110013301A CN 112787295 A CN112787295 A CN 112787295A
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- cable
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/08—Installations of electric cables or lines in or on the ground or water in tunnels
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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a cable transposition erecting structure in a cabin-divided cable tunnel, which comprises a bottom plate, vertical plates, transverse plates, a transition structure, a sliding groove, a layered limiting structure and a stretching and winding structure, wherein the vertical plates are respectively vertically arranged at two ends of the top side of the bottom plate, the transverse plates are welded at the tops of the two vertical plates, the transition structure is arranged at the bottom side of the transverse plate, the sliding groove is arranged at one side of each vertical plate, the sliding structure is arranged at one side of each vertical plate, the layered limiting structure and the stretching and winding structure are respectively arranged at the upper side and the lower side of the sliding structure, various wire harnesses are placed on a partition plate through the layered limiting structure, then a sealing plate is fixed at one side of a layered seat under the matching of a second positioning pin, and is fixed through the matching and extrusion of rubber pads, the arrangement and the fixing of cables can be realized, the classification is fixed, so that the circuit is clear, and the danger is reduced.
Description
Technical Field
The invention relates to the technical field of power grid erection, in particular to a cable transposition erection structure in a cabin-divided cable tunnel.
Background
With the acceleration of urban construction and the continuous improvement of the requirements of people on living quality, the use of overhead transmission lines is more and more limited, and more cables are laid by newly-built transmission channels; meanwhile, in order to promote urban construction, a large number of overhead transmission lines are also transformed into a ground in an urban area, and a cable channel is newly built for laying;
when the power transmission line is laid by adopting a cable, the main workload and investment are civil engineering channel construction, so that on the premise of determining a cable laying mode, the section size is reduced, the occupied area is reduced, the engineering investment can be effectively saved, in order to improve the power supply reliability, the power cable can be laid by adopting different channels or cabin tunnels, as the cabin cable tunnels can share part of wall bodies, the occupied area width is reduced, meanwhile, the handling of related procedures can be completed at one time, the external coordination workload is relatively less, more and more cabin tunnels are applied in urban cable channels, the current cabin cable tunnels have more design problems, and the use and the operation maintenance of the cable tunnels are not convenient;
for the problem of cable laying transposition, due to the fact that the diameter of a cable is large, the cable is not prone to being laid in a penetrating mode due to the fact that the wall bushing is adopted for transposition, the conventional mode adopted at present is that a partition wall in a cabin tunnel is directly perforated, the cable is transposed in a left-right crossing mode from a hole of the partition wall, due to the fact that the cable at the transposition position is crossed and the perforated position is a weak link, the cable cannot be isolated, potential safety hazards exist, reliability is low, and meanwhile, when the cable is transposed, people pass through a pedestrian passageway.
Disclosure of Invention
The invention aims to provide a cable transposition erection structure in a cabin-divided cable tunnel, which can realize the arrangement and fixation of cables, can realize the carding, classification and fixation of various cables under the matching of a plurality of layered limit structures, ensures clear lines and reduces the occurrence of danger.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a cable transposition erects structure in subdivision cable tunnel, includes bottom plate, lift bearing structure, commuting case, connection structure, isolation layer and reposition of redundant personnel structure, lift bearing structure is installed to the top side of bottom plate, the last commuting case of installing of lift bearing structure, the inside of commuting case is provided with connection structure, the inside at the commuting case is laid to the isolation layer, the reposition of redundant personnel structure sets up between connection structure.
Preferably, connection structure includes first connecting terminal, slip plectrum, extrusion spring, electrically conductive plectrum and second connecting terminal, the inside of commuting case is provided with the limiting plate, has seted up the slide opening in the limiting plate, one side of slip plectrum is provided with the conducting rod, and the conducting rod runs through in the slide opening, the rigid coupling has the extrusion spring on the slip plectrum, the last rigid coupling of extrusion spring has electrically conductive plectrum, a plurality of first connecting terminal are equipped with to one side tank wall embedding of commuting case, a plurality of second connecting terminal are equipped with to the opposite side tank wall embedding of commuting case.
Preferably, the inside of commuting case is provided with the multilayer isolation layer, first connecting terminal passes through the cable with the slip plectrum and connects, electrically conductive plectrum is tangent with the terminal surface of second connecting terminal.
Preferably, four second connection terminals are arranged in a horizontal position of each first connection terminal.
Preferably, the shunting structure includes insulating spring, shrink screw rod, shrink nut and connection plectrum, and is double-phase adjacent be provided with the through-hole on the second connecting terminal respectively, the shrink screw rod is worn to establish respectively in the through-hole, and two adjacent weld between the shrink screw rod and be equipped with the connection plectrum, the outside cover of one end of shrink screw rod is equipped with insulating spring, shrink nut cooperation is installed on the shrink screw rod.
Preferably, two ends of the connecting poking sheet are tangent to the side walls of the two adjacent second connecting terminals respectively.
Preferably, the lifting support structure comprises a slide rail, a lifting motor, a connecting seat, a fixing bolt, a lifting frame, a screw rod, a limiting rod, a swinging rod, a positioning disc and a first positioning pin, the top side of the bottom plate is provided with an annular slide rail, the slide rail is provided with a slide block, a limit rod is vertically welded on the slide block, the lifting motor is arranged on the top side of the bottom plate, a screw rod is arranged on a rotating shaft of the lifting motor, the interior of the lifting frame is respectively provided with a screw hole and a rod hole, the top end of the screw rod is arranged in the screw hole in a penetrating way through thread matching, the top end of the limiting rod is arranged in the rod hole in a penetrating way, the connecting seat is welded on one side of the lifting frame, one end of the swinging rod is arranged in the connecting seat in a matching way through a fixing bolt, the other end of the swing rod is welded with a positioning disc, and the first positioning pin is installed on the eccentric position of the positioning disc in a threaded fit mode.
Preferably, the sliding block is provided with a second positioning pin, the swinging rod penetrates through the bottom box wall of the exchange box, and the end face of the first positioning pin is tangent to the side wall of the exchange box.
The invention has the beneficial effects that:
according to the invention, by arranging the connecting structure, a plurality of first connecting terminals are arranged on the box wall of the exchange box in a staggered manner at different heights, four second connecting terminals are correspondingly arranged at the horizontal position of each first connecting terminal, connection isolation is realized under the coordination of the isolating layer, circuits are ensured not to be crossed, the circuit safety can be better ensured, when cables are exchanged, the conductive plates slide along the sliding holes, the conductive shifting pieces are connected corresponding to the second connecting terminals, and the cross connection of the cables is realized, so that the exchange connection mode is safer, the connection is more convenient and more convenient, and the circuit safety is ensured;
through setting up the reposition of redundant personnel structure, tighten up two adjacent second connecting terminal, realize the tensile fastening to the shrink screw rod, will connect the plectrum pulling to be connected with two adjacent second connecting terminal, realize the connection of two second connecting terminal, be connected with the cable on two or a plurality of second connecting terminal, realize the reposition of redundant personnel of cable, guarantee the stability of reposition of redundant personnel connection, guarantee the circuit simultaneously clearly, reach better effect of erectting.
Through the lift bearing structure, through the elevator motor operation, it is rotatory to drive the lead screw, under the spacing cooperation of gag lever post, can realize that the crane slides from top to bottom along the gag lever post, after sliding, can change the high position of commuting case, the swinging arms is installed in the connecting seat in fixing bolt's cooperation, can adjust the swing angle of commuting case, the commuting case can encircle the swinging arms roll simultaneously, further realize the angle modulation to the commuting case, can realize the connection is assembled to the cable multi-angle, avoid buckling of cable, guarantee the stability of connecting, better suitable tunnel erects the environment, chaotic when avoiding the cable exchange, the order is clear, the personnel's walking of being convenient for, there is better ventilation, the ventilation effect.
Drawings
FIG. 1 is an overall front perspective three-dimensional structure diagram of a cable transposition erection structure in a cabin-divided cable tunnel according to the invention;
FIG. 2 is an overall overlooking three-dimensional structure diagram of a cable transposition erection structure in a cabin-divided cable tunnel according to the invention;
FIG. 3 is an overall rear perspective view of a cable transposition erection structure in a cabin-divided cable tunnel according to the present invention;
FIG. 4 is a side view of the whole of the cable transposition erection structure in the subdivision cable tunnel;
FIG. 5 is a structural view of an area A in the overall structural view of a cable transposition erection structure in a subdivision cable tunnel according to the present invention;
illustration of the drawings:
1. a base plate; 2. a lifting support structure; 3. an exchange box; 4. a connecting structure; 5. an isolation layer; 6. a flow splitting structure; 21. a slide rail; 22. a lifting motor; 23. a connecting seat; 24. fixing the bolt; 25. a lifting frame; 26. a screw rod; 27. a limiting rod; 28. a swing lever; 29. positioning a plate; 210. a first positioning pin; 41. a first connection terminal; 42. sliding the shifting piece; 43. a compression spring; 44. a conductive paddle; 45. a second connection terminal; 61. an insulating spring; 62. contracting the screw; 63. shrinking the nut; 64. and connecting the shifting sheet.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Specific examples are given below.
Referring to fig. 1 to 5, the cable transposition erection structure in the cabin-divided cable tunnel comprises a bottom plate 1, a lifting support structure 2, an exchange box 3, a connection structure 4, an isolation layer 5 and a diversion structure 6, wherein the lifting support structure 2 is installed on the top side of the bottom plate 1, the exchange box 3 is installed on the lifting support structure 2, the connection structure 4 is arranged in the exchange box 3, the isolation layer 5 is laid in the exchange box 3, and the diversion structure 6 is arranged between the connection structures 4.
As an embodiment of the present invention, the connection structure 4 includes a first connection terminal 41, a sliding dial 42, an extrusion spring 43, a conductive dial 44 and a second connection terminal 45, a limiting plate is disposed inside the exchange box 3, a sliding hole is disposed in the limiting plate, a conductive rod is disposed on one side of the sliding dial 42 and penetrates through the sliding hole, the extrusion spring 43 is fixedly connected to the sliding dial 42, the conductive dial 44 is fixedly connected to the extrusion spring 43, a plurality of first connection terminals 41 are embedded in one side of the box wall of the exchange box 3, a plurality of second connection terminals 45 are embedded in the other side of the box wall of the exchange box 3, a plurality of layers of isolation layers 5 are disposed inside the exchange box 3, the first connection terminal 41 and the sliding dial 42 are connected through a cable, the conductive dial 44 is tangent to an end surface of the second connection terminals 45, four second connection terminals 45 are correspondingly disposed at a horizontal position of each first connection terminal 41, different height dislocation is provided with a plurality of first connecting terminal 41 on the tank wall of commuting case 3, the horizontal position correspondence at every first connecting terminal 41 is provided with four second connecting terminal 45, realize connecting the isolation under the cooperation of isolation layer 5, guarantee that the circuit is not criss-cross, can better guarantee circuit safety, when the cable exchange, slide along the slide opening through the current conducting plate, correspond second connecting terminal 45 with electrically conductive plectrum 44 and connect, realize the cross connection of cable, this kind of exchange connected mode is safer, it is more convenient to connect, guarantee circuit safety.
As an embodiment of the present invention, the shunting structure 6 includes an insulating spring 61, a shrinking screw 62, a shrinking nut 63 and a connecting shifting piece 64, through holes are respectively formed on two adjacent second connecting terminals 45, the shrinking screw 62 is respectively inserted into the through holes, the connecting shifting piece 64 is welded between the two adjacent shrinking screws 62, the insulating spring 61 is sleeved outside one end of the shrinking screw 62, the shrinking nut 63 is fittingly installed on the shrinking screw 62, two ends of the connecting shifting piece 64 are respectively tangent to the side walls of the two adjacent second connecting terminals 45, only the two adjacent second connecting terminals 45 need to be tightened to stretch and fasten the shrinking screw 62, the connecting shifting piece 64 is pulled to be connected with the two adjacent second connecting terminals 45 to realize the connection of the two second connecting terminals 45, cables are connected to the two or more second connecting terminals 45, realize the reposition of redundant personnel of cable, guarantee the stability of reposition of redundant personnel connection, guarantee the circuit clear simultaneously, reach better effect of erectting.
As an embodiment of the invention, the lifting support structure 2 includes a slide rail 21, a lifting motor 22, a connecting seat 23, a fixing bolt 24, a lifting frame 25, a screw rod 26, a limiting rod 27, a swing rod 28, a positioning disc 29 and a first positioning pin 210, the top side of the bottom plate 1 is provided with an annular slide rail 21, the slide rail 21 is provided with a slide block, the slide block is vertically welded with the limiting rod 27, the lifting motor 22 is installed on the top side of the bottom plate 1, the rotating shaft of the lifting motor 22 is provided with the screw rod 26, the lifting frame 25 is internally provided with a screw hole and a rod hole respectively, the top end of the screw rod 26 is penetrated in the screw hole through screw thread fit, the top end of the limiting rod 27 is penetrated in the rod hole, the connecting seat 23 is welded on one side of the lifting frame 25, one end of the swing rod 28 is fitted in the connecting seat 23 through the fixing bolt 24, the other end of the, the first positioning pin 210 is mounted on the eccentric position of the positioning disc 29 through threaded fit, the sliding block is provided with a second positioning pin, the swinging rod 28 penetrates through the bottom box wall of the exchange box 3, the end face of the first positioning pin 210 is tangent to the side wall of the exchange box 3, when the cable connector is in work, the bottom plate 1 is attached to the side of a tunnel, the lead screw 26 is driven to rotate through the operation of the lifting motor 22 according to the height of the cable, the lifting frame 25 can slide up and down along the limiting rod 27 under the limiting fit of the limiting rod 27, the height position of the exchange box 3 can be changed after the sliding, the swinging rod 28 is mounted in the connecting seat 23 through the fit of the fixing bolt 24, the swinging angle of the exchange box 3 can be adjusted, meanwhile, the exchange box 3 can roll around the swinging rod 28, the angle adjustment of the exchange box 3 is further realized, and the multi-angle assembly connection of the cable, avoid buckling of cable, guarantee the stability of connection, better suitable tunnel erects the environment, and is chaotic when avoiding the cable exchange, and the order is clear, and the personnel of being convenient for walk, have better ventilation, ventilation effect.
The working principle is as follows: when in use, the bottom plate 1 is attached to the side of the tunnel, the lead screw 26 is driven to rotate through the operation of the lifting motor 22 according to the height of the cable erection, the lifting frame 25 can slide up and down along the limiting rod 27 under the limiting matching of the limiting rod 27, the height position of the exchange box 3 can be changed after the sliding, the swinging rod 28 is arranged in the connecting seat 23 under the matching of the fixing bolt 24, the swinging angle of the exchange box 3 can be adjusted, meanwhile, the exchange box 3 can roll around the swinging rod 28, the angle adjustment of the exchange box 3 can be further realized, the multi-angle splicing connection of the cable can be realized, the bending of the cable is avoided, the connection stability is ensured, the tunnel erection environment is better suitable, the disorder during cable exchange is avoided, the arrangement is clear, the personnel can conveniently walk, the ventilation effect is better, a plurality of first connecting terminals 41 are arranged on the box wall of the exchange box 3 in a staggered manner at different heights, four second connecting terminal second connecting terminals 45 are correspondingly arranged at the horizontal position of each first connecting terminal 41, connection isolation is realized under the matching of the isolating layer 5, the circuit is ensured not to be crossed, the circuit safety can be better ensured, when the cable is exchanged, the conductive poking sheet 44 is connected with the second connecting terminals 45 through the sliding of the conductive plate along the sliding hole, the cross connection of the cable is realized, the exchange connection mode is safer, the connection is more convenient, the circuit safety is ensured, when the cable is connected in a shunting way, only two adjacent second connecting terminals 45 need to be tightened, the contraction screw 62 is stretched and fastened, the connecting poking sheet 64 is pulled to be connected with the two adjacent second connecting terminals 45, the connection of the two second connecting terminals 45 is realized, the cables are connected on the two or more second connecting terminals 45, the shunting of the cable is realized, and the stability of shunting connection is ensured, meanwhile, the circuit is clear, and a better erection effect is achieved.
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 (8)
1. The utility model provides a cable transposition erects structure in subdivision cable tunnel, its characterized in that, includes bottom plate (1), lift bearing structure (2), commuting case (3), connection structure (4), isolation layer (5) and reposition of redundant personnel structure (6), lift bearing structure (2) are installed to the top side of bottom plate (1), install commuting case (3) on the lift bearing structure (2), the inside of commuting case (3) is provided with connection structure (4), the inside at commuting case (3) is laid in isolation layer (5), reposition of redundant personnel structure (6) set up between connection structure (4).
2. The cable transposition erection structure in a subdivision cable tunnel according to claim 1, characterized in that, the connection structure (4) includes a first connection terminal (41), a sliding shifting plate (42), an extrusion spring (43), a conductive shifting plate (44) and a second connection terminal (45), a limiting plate is provided inside the exchange box (3), a sliding hole is provided in the limiting plate, a conductive rod is provided at one side of the sliding shifting plate (42) and runs through the sliding hole, the extrusion spring (43) is fixedly connected to the sliding shifting plate (42), the conductive shifting plate (44) is fixedly connected to the extrusion spring (43), a plurality of first connection terminals (41) are embedded in one side box wall of the exchange box (3), and a plurality of second connection terminals (45) are embedded in the other side box wall of the exchange box (3).
3. The structure for cable transposition erection in a subdivision cable tunnel according to claim 2, characterized in that, the inside of the exchange box (3) is provided with a plurality of layers of isolation layers (5), the first connection terminal (41) and the sliding pull tab (42) are connected through a cable, and the conductive pull tab (44) is tangent to the end face of the second connection terminal (45).
4. The structure for cable transposition erection in a subdivision cable tunnel according to claim 2, characterized in that each of said first connection terminals (41) is provided with four second connection terminals (45) in correspondence of the horizontal position.
5. The cable transposition erection structure in a subdivision cable tunnel according to claim 1, characterized in that said shunting structure (6) comprises an insulating spring (61), a contraction screw (62), a contraction nut (63) and a connection shifting piece (64), two adjacent second connection terminals (45) are respectively provided with a through hole, said contraction screw (62) is respectively inserted into the through hole, a connection shifting piece (64) is welded between two adjacent contraction screws (62), an insulating spring (61) is sleeved outside one end of said contraction screw (62), and said contraction nut (63) is fittingly installed on the contraction screw (62).
6. The cable transposition arrangement in a subdivision cable tunnel of claim 5, characterized in that both ends of the connection poke sheet (64) are tangent to the side walls of two adjacent second connection terminals (45).
7. The cable transposition erection structure in the subdivision cable tunnel according to claim 1, characterized in that the lifting support structure (2) comprises a slide rail (21), a lifting motor (22), a connecting seat (23), a fixing bolt (24), a lifting frame (25), a screw rod (26), a limiting rod (27), a swing rod (28), a positioning disc (29) and a first positioning pin (210), the top side of the bottom plate (1) is provided with an annular slide rail (21), the slide rail (21) is provided with a slide block, the limiting rod (27) is vertically welded on the slide block, the lifting motor (22) is installed on the top side of the bottom plate (1), the screw rod (26) is installed on a rotating shaft of the lifting motor (22), the lifting frame (25) is respectively provided with a screw hole and a rod hole, the top end of the screw rod (26) is inserted into the screw hole through thread fit, the top of gag lever post (27) is worn to establish in the pole is downthehole, connecting seat (23) weld the dress in one side of crane (25), the one end of swinging arms (28) is passed through fixing bolt (24) cooperation and is installed inside connecting seat (23), the other end welding of swinging arms (28) is equipped with positioning disk (29), install on the eccentric position of positioning disk (29) through screw-thread fit first locating pin (210).
8. The cable transposition arrangement in a subdivision cable tunnel of claim 7, characterized in that a second positioning pin is arranged on the slide block, the swinging rod (28) penetrates through the bottom wall of the exchange box (3), and the end surface of the first positioning pin (210) is tangent to the side wall of the exchange box (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110013301.8A CN112787295B (en) | 2021-01-06 | 2021-01-06 | Cable transposition erection structure in subdivision cable tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110013301.8A CN112787295B (en) | 2021-01-06 | 2021-01-06 | Cable transposition erection structure in subdivision cable tunnel |
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| Publication Number | Publication Date |
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| CN112787295A true CN112787295A (en) | 2021-05-11 |
| CN112787295B CN112787295B (en) | 2022-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110013301.8A Active CN112787295B (en) | 2021-01-06 | 2021-01-06 | Cable transposition erection structure in subdivision cable tunnel |
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| EP0942292A2 (en) * | 1998-03-11 | 1999-09-15 | BICC Public Limited Company | Method of and apparatus for detecting cable oversheath faults and installations in which they are used |
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| CN205141572U (en) * | 2015-11-24 | 2016-04-06 | 德阳新源电器有限责任公司 | Bury formula low tension cable feeder pillar |
| CN205304202U (en) * | 2015-11-27 | 2016-06-08 | 广东电网有限责任公司东莞供电局 | Interior high tension cable cross-connection case of establishing on-line monitoring device |
| CN107134749A (en) * | 2017-05-23 | 2017-09-05 | 国核电力规划设计研究院有限公司 | A kind of transposition tower and its interchanging method |
| CN107946952A (en) * | 2017-11-30 | 2018-04-20 | 苏州苏驼通信科技股份有限公司 | It is a kind of to be used for power supply box, distribution box, fiber-dividing box, the new structure of optical cross box |
| CN207409999U (en) * | 2017-10-30 | 2018-05-25 | 泰州鑫源电气设备销售有限公司 | A kind of cable branch box |
| CN109814217A (en) * | 2019-04-03 | 2019-05-28 | 杭州道盈信息科技有限公司 | A kind of optical cross box used convenient for extending capacity reformation |
| CN110474286A (en) * | 2019-09-17 | 2019-11-19 | 深圳供电局有限公司 | Variable connecting box for coaxial cable inlet wire |
-
2021
- 2021-01-06 CN CN202110013301.8A patent/CN112787295B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0942292A2 (en) * | 1998-03-11 | 1999-09-15 | BICC Public Limited Company | Method of and apparatus for detecting cable oversheath faults and installations in which they are used |
| US6723919B1 (en) * | 2003-04-15 | 2004-04-20 | Bellsouth Intellectual Property Corporation | Crossbox with sliding binding post mechanism |
| CN205141572U (en) * | 2015-11-24 | 2016-04-06 | 德阳新源电器有限责任公司 | Bury formula low tension cable feeder pillar |
| CN205304202U (en) * | 2015-11-27 | 2016-06-08 | 广东电网有限责任公司东莞供电局 | Interior high tension cable cross-connection case of establishing on-line monitoring device |
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| CN107134749A (en) * | 2017-05-23 | 2017-09-05 | 国核电力规划设计研究院有限公司 | A kind of transposition tower and its interchanging method |
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| CN107946952A (en) * | 2017-11-30 | 2018-04-20 | 苏州苏驼通信科技股份有限公司 | It is a kind of to be used for power supply box, distribution box, fiber-dividing box, the new structure of optical cross box |
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| CN110474286A (en) * | 2019-09-17 | 2019-11-19 | 深圳供电局有限公司 | Variable connecting box for coaxial cable inlet wire |
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| CN112787295B (en) | 2022-05-03 |
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