CN110487817B - Anti-aging flame-retardant power cable mobile detection platform - Google Patents
Anti-aging flame-retardant power cable mobile detection platform Download PDFInfo
- Publication number
- CN110487817B CN110487817B CN201910896129.8A CN201910896129A CN110487817B CN 110487817 B CN110487817 B CN 110487817B CN 201910896129 A CN201910896129 A CN 201910896129A CN 110487817 B CN110487817 B CN 110487817B
- Authority
- CN
- China
- Prior art keywords
- rod
- main frame
- cable
- pressing
- conical gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/952—Inspecting the exterior surface of cylindrical bodies or wires
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention discloses an aging-resistant flame-retardant power cable moving detection table, which comprises two main frame rods arranged in parallel, wherein two ends of the two main frame rods are connected through a lead device, and a stabilizing disc, a fixing ring, a stretching rod and a precursor structure are fixedly arranged on the main frame rods; the front drive structure installed at one end of the main frame rod drives the whole movable detection platform to move on the overhead cable, the carding pipe is driven to rotate, the cable surface passing through is cleaned, the influence of surface pollutants on an observation result is reduced, the detection platform moves on the cable through self power, and the worker is prevented from carrying out overhead operation for a long time.
Description
Technical Field
The invention belongs to the technical field of cable detection, and particularly relates to an anti-aging flame-retardant power cable mobile detection table.
Background
The cable is used for connecting power equipment, realizes the distribution of electric power, but because the cable lay in outdoor, ageing damage appears easily under the influence of environment, and ageing damage of cable need in time discover, maintain or change to avoid having and the damage of cable and the incident and transmission of electricity problem appear, laying of cable mainly includes that the ground is laid, lay under water and high altitude is laid, and wherein the cable of laying high altitude is detecting, need the staff to carry out high altitude construction for a long time, and the operation risk is higher.
In the prior art, the safety detection of the cable is mainly performed by measuring the resistance between the conductive layer and the outer protective layer of the cable, but on one hand, the detection efficiency of the resistance measuring method is low, and on the other hand, only the damaged section can be found, and the early warning effect cannot be achieved, so that the detection efficiency is improved, the high-altitude operation time of workers is shortened, the surface condition of the cable is checked, and the damaged section of the insulating protective layer of the cable is found in time, so that one of the problems which need to be solved at present is solved.
Disclosure of Invention
The invention aims to provide a mobile detection table for an anti-aging flame-retardant power cable.
The technical problems to be solved by the invention are as follows:
since the high-altitude cable is exposed in the external environment for a long time, the insulation protection layer of the cable is easy to damage due to aging, so that the conducting layer inside the cable is exposed, if the high-altitude cable is not found in time and is maintained and replaced, the safe transmission of the cable is easy to be influenced, and accidents are possibly caused.
The purpose of the invention can be realized by the following technical scheme:
a mobile detection table for an aging-resistant flame-retardant power cable comprises two main frame rods arranged in parallel, wherein two ends of the two main frame rods are connected through a lead device, and a stabilizing disc, a fixing ring, a stretching rod and a precursor structure are fixedly arranged on each main frame rod;
the wire leading device comprises a guide wheel, a spring structure and a pressing wheel, the guide wheel is rotatably connected with two main frame rods and comprises a guide pillar, two ends of the guide pillar are both connected with baffle discs, the diameter of each baffle disc is larger than that of the guide pillar, two ends of the pressing wheel are rotatably connected with one end of the spring structure through guide rods, the other end of the spring structure is fixed on the main frame rod, and the spring structure is in a contraction state under the condition of not being interfered by external force;
the stretching rod is fixedly arranged on the main frame rod and comprises a fixed rod and a supporting rod, a first through groove is formed in the bottom of the fixed rod, a rotating roller is rotatably arranged in the first through groove, a second through groove is formed in one end, opposite to the fixed rod, of the supporting rod, the second through groove corresponds to the first through groove, and the supporting rod is fixedly connected with the fixed rod through a bolt;
the fixed ring comprises a fixed block and a mounting ring fixedly connected with the fixed block, and a plurality of cameras are mounted on the mounting ring.
As a further scheme of the invention, the rotating roller is of a cylindrical structure with the diameter gradually reduced from two ends to the middle.
As a further scheme of the invention, two through holes are oppositely formed in the inner wall of the first through groove, the through holes are arranged in parallel with the rotary roller, a compression spring is arranged in each through hole and is sleeved on a compression rod, one end of each compression spring, which is far away from the first through groove, is fixedly connected with the inner wall of each through hole and the compression rod, and two ends of each compression rod are respectively connected with a handle and a pressing sheet.
As a further scheme of the invention, the front-drive structure comprises a drive motor fixedly mounted on a main frame rod, the drive motor is connected with a first conical gear through a first transmission rod, the first conical gear is respectively meshed with a second conical gear and a third conical gear, the second conical gear is connected with a second transmission rod, the second transmission rod is in transmission connection with a guide wheel through a chain, the third conical gear is sleeved on a combing pipe, a bearing is sleeved on the combing pipe, the bearing is fixedly mounted on the main frame rod, the axial direction of the combing pipe is consistent with the cable laying direction, and a cleaning layer is laid on the inner wall of the combing pipe.
As a further scheme of the invention, the stabilizing disc comprises a disc and a stabilizing motor, the disc is fixedly connected with the main frame rod, the stabilizing motor is fixedly installed on the disc and is connected with the fan blades distributed in an annular array, a metal block is fixed at one end of each fan blade far away from the stabilizing motor, and the fan blades and the metal block are both arranged in the disc.
The invention has the beneficial effects that:
the movable detection platform is mainly applied to detection of a surface protection layer of a laid high-altitude cable, and during detection, the cable is clamped by a guide wheel and a pressing wheel at the end part of a main frame rod, so that the cable in the detection platform is in a tightened state, two stretching rods guide the cable to be far away from the main frame rod and enable the cable to penetrate through a mounting ring, enough space is reserved around the cable for mounting a plurality of cameras, and the surface of the cable is observed in an all-around manner; install simultaneously in the forerunner's of main hack lever one end structure, driving motor drive first conical gear rotates, first conical gear and then drive second conical gear and third conical gear rotate, wherein the second conical gear passes through transmission structure and connects the guide pulley, thereby realize driving whole removal and detect the platform and remove on the high altitude cable, third conical gear drive carding pipe rotates, thereby clean the cable surface of passing through, reduce the influence of surface contamination to follow-up observation result, and clean the cable, the detection platform moves on the cable through self power in the whole process, and transmit the surface condition information transmission of laying the cable to receiving arrangement, make things convenient for the staff to observe and the analysis, avoid the staff to carry out high altitude construction for a long time.
Drawings
The invention is described in further detail below with reference to the figures and specific embodiments.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the stretch rod;
FIG. 3 is a schematic view of a connection structure of a driving motor and a combing pipe;
fig. 4 is a schematic structural view of the fixing ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
A mobile detection table for an aging-resistant flame-retardant power cable comprises two main frame rods 1 which are arranged in parallel as shown in figure 1, wherein two ends of each main frame rod 1 are connected through a lead device, and a stabilizing disc, a fixing ring 6, a stretching rod 9 and a precursor structure are fixedly arranged on each main frame rod 1;
the wire leading device comprises a guide wheel 2, a spring structure 3 and a pressing wheel 4, wherein the guide wheel 2 is rotationally connected with two main frame rods 1, the guide wheel 2 comprises a guide pillar 21, two ends of the guide pillar 21 are both connected with baffle discs 22, the diameter of each baffle disc 22 is larger than that of each guide pillar 21, two ends of the pressing wheel 4 are rotationally connected with one end of the spring structure 3 through a guide rod 41, the other end of the spring structure 3 is fixed on the main frame rods 1, the axial length of the pressing wheel 4 is smaller than that of the guide pillars 21, and under the condition of no external force interference, the spring structure 3 is in a contraction state, so that the pressing wheel 4 is close to the guide wheel 2 and clamps a cable between the guide wheel and the guide wheel;
in the invention, the spring structure 3 comprises a spring and solid columns respectively fixedly connected with two ends of the spring, a connecting hole is formed in the solid column at one end of the spring, the spring structure 3 is rotatably connected with the guide rod 41 through the connecting hole, and the solid column at the other end of the spring is fixedly connected with the main frame rod 1;
as shown in fig. 2, the stretching rod 9 is fixedly installed on the main frame rod 1, the stretching rod 9 comprises a fixing rod 92 and a supporting rod 91, the bottom of the fixed rod 92 is provided with a first through groove 94, a rotating roller 95 is rotatably arranged in the first through groove 94, the rotating roller 95 is of a cylindrical structure with gradually reduced diameter from two ends to the middle, thereby leading the cable to be positioned at the middle position of the rotating roller 95 more stably, two through holes 96 are oppositely arranged on the inner wall of the first through groove 94, the through holes 96 are arranged in parallel with the rotating roller 95, a pressing spring 97 is arranged in the through holes 96, the pressing spring 97 is sleeved on the pressing rod 98, one end of the pressing spring 97 far away from the first through groove 94 is fixedly connected with the inner wall of the through holes 96 and the pressing rod 98, the two ends of the pressure lever 98 are respectively connected with a handle 99 and a pressing sheet 100, and the pressing sheet 100 compresses the cable, so that the situation that the cable is greatly deviated left and right when passing through the stretching lever is avoided;
a second through groove 93 is formed in one end, opposite to the fixed rod 92, of the supporting rod 91, the second through groove 93 corresponds to the first through groove 94, and the supporting rod 91 is fixedly connected with the fixed rod 92 through a bolt;
as shown in fig. 4, the fixing ring 6 includes a fixing block 61 and a mounting ring 62 fixedly connected to the fixing block 61, the mounting ring 62 is provided with a plurality of cameras, the cameras are used for collecting video image information of a cable passing through the mounting ring 62 and transmitting the video image information to a receiving device, the receiving device is used for receiving the video image information collected by the cameras and displaying and playing the video image information, so that a worker can observe the surface state of the cable conveniently and find out the damaged cable in time;
one end of the main frame rod 1 is further provided with a front driving structure, as shown in fig. 3, the front driving structure comprises a driving motor 7 fixedly mounted on the main frame rod 1, the driving motor 7 is connected with a first conical gear 72 through a first transmission rod 71, the first conical gear 72 is respectively meshed with a second conical gear 73 and a third conical gear 83, the second conical gear is connected with a second transmission rod 74, the second transmission rod 74 is in transmission connection with the guide wheel 2 through a chain or a belt, the third conical gear 83 is sleeved on the combing pipe 81, the combing pipe 81 is further sleeved with a bearing 82, the bearing 82 is fixedly mounted on the main frame rod 1, the axial direction of the combing pipe 81 is consistent with the cable laying direction, a layer of cleaning layer 84 is laid on the inner wall of the combing pipe 81, the cleaning layer 84 is formed by plastic fiber laying, wherein the plastic fiber is perpendicular to the axis of the combing pipe 81, and when in operation, the combing pipe 81 is sleeved on the cable to clean the cable.
Still fixed mounting has the battery on the owner hack lever 1, and the battery passes through wire and powered device electric connection.
As a further scheme of the invention, in order to ensure that the mobile detection table can stably operate in the detection process, a stabilizing disc is fixedly mounted on the main frame rod 1, the stabilizing disc comprises a disc 51 and a stabilizing motor 52, the disc 51 is fixedly connected with the main frame rod 1, the stabilizing motor 52 is fixedly mounted on the disc 51, the stabilizing motor 52 is connected with blades distributed in an annular array, a metal block is fixed at one end of each blade far away from the stabilizing motor 52, and the blades and the metal block are both arranged in the disc 51.
The working method of the invention is as follows:
the invention relates to a mobile detection platform which is mainly applied to the detection of a surface protection layer of a laid high-altitude cable, wherein the laying direction of the cable in the detection platform is between a guide wheel 2 and a pinch roller 4, between a stretching rod 9, a fixing ring 6, the stretching rod 9, between the guide wheel 2 and the pinch roller 4 and a combing pipe 81 during the detection, wherein the guide wheel 2 and the pinch roller 4 at the end part of a main frame rod 1 clamp the cable entering and leaving the detection platform, so that the cable in the detection platform is in a tense state for convenient observation, the two stretching rods 9 guide the cable to be away from the main frame rod 1 and lead the cable to pass through a mounting ring 62, so that enough space is reserved around the cable for mounting a plurality of cameras, and the surface of the cable is observed in an omnibearing manner; install simultaneously in the forerunner's of main hack lever 1 one end structure, driving motor drive first conical gear 72 rotates, first conical gear 72 and then drive second conical gear 73 and third conical gear 83 rotate, wherein second conical gear 73 passes through the drive structure and connects the guide pulley, thereby realize driving whole mobile detection platform and move on high altitude cable, third conical gear 83 drives carding pipe 81 and rotates, thereby clean the cable surface of passing through, reduce the influence of surface contamination to follow-up observation result, and clean the cable.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (3)
1. The mobile detection table for the aging-resistant flame-retardant power cable is characterized by comprising two main frame rods (1) which are arranged in parallel, wherein two ends of each of the two main frame rods (1) are connected through a lead device, and a stabilizing disc, a fixing ring (6), a stretching rod (9) and a precursor structure are fixedly mounted on each main frame rod (1);
the wire leading device comprises a guide wheel (2), a spring structure (3) and a pressing wheel (4), the guide wheel (2) is rotatably connected with two main frame rods (1), the guide wheel (2) comprises a guide pillar (21), two ends of the guide pillar (21) are both connected with a baffle disc (22), the diameter of the baffle disc (22) is larger than that of the guide pillar (21), two ends of the pressing wheel (4) are rotatably connected with one end of the spring structure (3) through a guide rod (41), the other end of the spring structure (3) is fixed on the main frame rods (1), and the spring structure (3) is in a contraction state under the condition that the spring structure is not interfered by external force;
the stretching rod (9) is fixedly arranged on the main frame rod (1), the stretching rod (9) comprises a fixing rod (92) and a supporting rod (91), a first through groove (94) is formed in the bottom of the fixing rod (92), a rotating roller (95) is rotatably arranged in the first through groove (94), a second through groove (93) is formed in one end, opposite to the fixing rod (92), of the supporting rod (91), the second through groove (93) corresponds to the first through groove (94), and the supporting rod (91) is fixedly connected with the fixing rod (92) through a bolt;
the fixing ring (6) comprises a fixing block (61) and a mounting ring (62) fixedly connected with the fixing block (61), and a plurality of cameras are mounted on the mounting ring (62);
two through holes (96) are formed in the inner wall of the first through groove (94) relatively, the through holes (96) are arranged in parallel with the rotary roller (95), a pressing spring (97) is arranged in each through hole (96), the pressing spring (97) is sleeved on a pressing rod (98), one end, far away from the first through groove (94), of the pressing spring (97) is fixedly connected with the inner wall of each through hole (96) and the pressing rod (98), and two ends of the pressing rod (98) are connected with a handle (99) and a pressing sheet (100) respectively;
the front-drive structure comprises a driving motor (7) fixedly installed on a main frame rod (1), wherein the driving motor (7) is connected with a first conical gear (72) through a first transmission rod (71), the first conical gear (72) is respectively meshed with a second conical gear (73) and a third conical gear (83), the second conical gear (73) is connected with a second transmission rod (74), the second transmission rod (74) is in transmission connection with a guide wheel (2) through a chain, the third conical gear (83) is sleeved on a combing pipe (81), the combing pipe (81) is sleeved with a bearing (82), the bearing (82) is fixedly installed on the main frame rod (1), the axial direction of the combing pipe (81) is consistent with the cable laying direction, and a cleaning layer (84) is laid on the inner wall of the combing pipe (81).
2. The mobile testing station of claim 1, wherein the rollers (95) are cylindrical structures with gradually decreasing diameters from the two ends to the middle.
3. The mobile detection table for the aging-resistant and flame-retardant power cable as claimed in claim 1, wherein the stabilization plate comprises a circular disc (51) and a stabilization motor (52), the circular disc (51) is fixedly connected with the main frame rod (1), the stabilization motor (52) is fixedly installed on the circular disc (51), the stabilization motor (52) is connected with blades distributed in an annular array, a metal block is fixed at one end of each blade far away from the stabilization motor (52), and the blades and the metal block are both arranged in the circular disc (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910896129.8A CN110487817B (en) | 2019-09-22 | 2019-09-22 | Anti-aging flame-retardant power cable mobile detection platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910896129.8A CN110487817B (en) | 2019-09-22 | 2019-09-22 | Anti-aging flame-retardant power cable mobile detection platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110487817A CN110487817A (en) | 2019-11-22 |
| CN110487817B true CN110487817B (en) | 2022-05-03 |
Family
ID=68559099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910896129.8A Active CN110487817B (en) | 2019-09-22 | 2019-09-22 | Anti-aging flame-retardant power cable mobile detection platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110487817B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111289534A (en) * | 2020-03-19 | 2020-06-16 | 云南电网有限责任公司电力科学研究院 | Overhead conductor aging detection device and method |
| CN111436308A (en) * | 2020-04-21 | 2020-07-24 | 吉林省锦瀛麻业生物科技有限公司 | Lighting control device for industrial hemp planting greenhouse |
| CN112485268B (en) * | 2020-11-19 | 2024-10-15 | 广西电网有限责任公司南宁供电局 | Monitoring method and device for distribution pipe well |
| CN113791089B (en) * | 2021-09-30 | 2023-03-31 | 海南电网有限责任公司屯昌供电局 | 10KV distribution network cable insulation early warning system |
| CN114217184B (en) * | 2021-11-29 | 2023-08-25 | 中国电建集团海南电力设计研究院有限公司 | Detection device for high-voltage power cable test |
| CN116799701B (en) * | 2023-07-25 | 2023-12-08 | 国网河北省电力有限公司沧州供电分公司 | Automatic initiative inspection device of power dispatching |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5551545A (en) * | 1994-03-18 | 1996-09-03 | Gelfman; Stanley | Automatic deployment and retrieval tethering system |
| KR101578509B1 (en) * | 2015-02-10 | 2015-12-21 | (주)조이전기 | System for detecting fault section of power distribution line |
| CN205353235U (en) * | 2016-01-13 | 2016-06-29 | 冯来元 | Cable detection device on adjusting line |
| CN109164365A (en) * | 2018-11-19 | 2019-01-08 | 无锡新润源信息科技有限公司 | A kind of high-tension cable partial discharge monitoring device and its system |
| CN109655658A (en) * | 2019-02-22 | 2019-04-19 | 浙江亘古电缆股份有限公司 | A kind of detection device of high-tension cable |
| CN209167462U (en) * | 2018-11-13 | 2019-07-26 | 张志彬 | A kind of high-voltage power cable nondestructive detection device |
-
2019
- 2019-09-22 CN CN201910896129.8A patent/CN110487817B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5551545A (en) * | 1994-03-18 | 1996-09-03 | Gelfman; Stanley | Automatic deployment and retrieval tethering system |
| KR101578509B1 (en) * | 2015-02-10 | 2015-12-21 | (주)조이전기 | System for detecting fault section of power distribution line |
| CN205353235U (en) * | 2016-01-13 | 2016-06-29 | 冯来元 | Cable detection device on adjusting line |
| CN209167462U (en) * | 2018-11-13 | 2019-07-26 | 张志彬 | A kind of high-voltage power cable nondestructive detection device |
| CN109164365A (en) * | 2018-11-19 | 2019-01-08 | 无锡新润源信息科技有限公司 | A kind of high-tension cable partial discharge monitoring device and its system |
| CN109655658A (en) * | 2019-02-22 | 2019-04-19 | 浙江亘古电缆股份有限公司 | A kind of detection device of high-tension cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110487817A (en) | 2019-11-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110487817B (en) | Anti-aging flame-retardant power cable mobile detection platform | |
| CN102621430B (en) | Intelligent detection robot system for horizontal insulator strings | |
| CN105424720A (en) | Cable detection device and detection method based on image processing | |
| CN106229901B (en) | Cable cutting and peeling integrated device | |
| CN202533530U (en) | Horizontal insulator-string intelligent-detection robot system | |
| CN105158276A (en) | Device for detecting bridge suspension rod and detection method of device | |
| CN214539854U (en) | Traveling wave cable fault early warning system | |
| CN113654881A (en) | High-altitude cable tensile force bearing detection system and detection process thereof | |
| CN216559342U (en) | Cable route intelligent detection device | |
| CN117054432B (en) | Power cable damage detection device | |
| CN211553580U (en) | Wire tensile detection device | |
| CN203894352U (en) | Insulator detecting robot capable of adapting to various occasions | |
| CN208461334U (en) | A kind of high voltage distribution network cable automatic inspection device | |
| CN204808966U (en) | Full -automatic cable conductor collection device with damping device | |
| CN220437986U (en) | Tensile property detection device | |
| CN204959598U (en) | A device for detecting bridge jib | |
| CN216283478U (en) | Tunnel cloud monitoring system based on Internet of things and operation and maintenance system | |
| CN116699066A (en) | Detection method based on electric pipeline detection equipment | |
| CN114112107A (en) | Tunnel cloud monitoring system based on Internet of things and operation and maintenance system | |
| CN211718447U (en) | Insulation detection device for cable skin | |
| CN212668821U (en) | Dedicated quick winding tightening means of communication cable | |
| CN220519775U (en) | Cable insulating layer damage detection device | |
| CN220356847U (en) | Detection device for aviation cable | |
| CN206142557U (en) | Full rolling machine is collected by detectable electric power protecting pipe whether | |
| CN113433422A (en) | Device for positioning power distribution network line fault |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |