CN110994484A - Repairing device for wire and cable insulating layer - Google Patents

Repairing device for wire and cable insulating layer Download PDF

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Publication number
CN110994484A
CN110994484A CN202010007172.7A CN202010007172A CN110994484A CN 110994484 A CN110994484 A CN 110994484A CN 202010007172 A CN202010007172 A CN 202010007172A CN 110994484 A CN110994484 A CN 110994484A
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CN
China
Prior art keywords
repairing
wheel
groove
rolling
travelling
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CN202010007172.7A
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Chinese (zh)
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CN110994484B (en
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不公告发明人
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SHENGDA ELECTRIC Co.,Ltd.
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Shengzhou Runya Electronic Technology Co Ltd
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/16Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for repairing insulation or armouring of cables

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Abstract

The invention discloses a repairing device for an electric wire and cable insulating layer, which comprises an installation block, wherein a travelling device is arranged in the installation block, the travelling device comprises a bilaterally symmetrical rotatable travelling crawler, the travelling crawler can drive the installation block to move by rotating, a supporting block is fixedly arranged on the upper end surface of the installation block, a fixed rod is fixedly arranged at the upper end of the supporting block, a rack is fixedly arranged at the front end of the fixed rod, and two repairing blocks are arranged on the upper side of the rack. The whole process is fully automatically operated, and the working efficiency is high.

Description

Repairing device for wire and cable insulating layer
Technical Field
The invention relates to the technical field of insulators, in particular to a repairing device for an insulating layer of a wire and a cable.
Background
The insulator is a substance which is not good at conducting current, also called as a dielectric medium, and has extremely high resistivity, the solid insulator comprises plastics, rubber, glass, ceramics and the like, wherein the rubber can be used for manufacturing cables, and is mainly used for enhancing the insulation performance and protecting the cables from mechanical damage, but the rubber insulating sleeve after being used for a period of time can be broken and cracked, so that the internal cables are exposed, and certain potential safety hazards exist, therefore, the cables need to be regularly detected and repaired, the existing repair work of wires and cables is usually carried out by manual visual inspection, and the insulation layer is repaired by manually filling the molten rubber in the damaged position, in the process, the manual detection and repair are limited by the region where the cables are laid, and the working efficiency is low. The present invention sets forth a device that solves the above problems.
Disclosure of Invention
The technical problem is as follows:
the existing repair work of wires and cables is usually carried out by manual visual inspection and manual operation, so that the repair work is limited by the laying region of the cables and has low working efficiency.
In order to solve the problems, the embodiment designs a repairing device for an insulating layer of a wire and a cable, which comprises an installation block, wherein a traveling device is arranged in the installation block, the traveling device comprises a rotatable traveling crawler which is bilaterally symmetrical and can drive the installation block to move by rotating, a supporting block is fixedly arranged on the upper end face of the installation block, a fixed rod is fixedly arranged at the upper end of the supporting block, a rack is fixedly arranged at the front end of the fixed rod, two repairing blocks are arranged on the upper side of the rack, a groove with a backward opening is arranged in each repairing block, the rack penetrates through the groove, a connecting block is fixedly arranged between the repairing blocks, a swinging device is arranged in each connecting block, the swinging device drives the repairing blocks to rotate when in work, a cable is arranged between the repairing blocks, and an insulating sleeve is wrapped on the surface of the cable, the utility model discloses a repair device, including the insulating cover, the insulating cover is equipped with the rack rotation direction, repair the piece and be equipped with the patching device, the patching device includes that the telescopic repairs the pipe, about repair the one end that the pipe is close to each other and install the mouth of repairing, the mouth of repairing can pour into fused rubber into the position of treating repairing in the insulating cover, repair the piece along one side of rack rotation direction is equipped with the regulation and control device, the regulation and control device can be according to the thickness of cable is adjusted the flexible distance of repairing the pipe, the opposite side of repairing the piece is equipped with rolling press device, rolling press device includes rotatable rolling wheel, and the position that has filled with.
The traveling device comprises a left traveling groove and a right traveling groove which are symmetrical, the front traveling wheels and the rear traveling wheels which are symmetrical are arranged in the traveling groove in a rotating mode, the front traveling wheels and the rear traveling wheels are connected through a traveling crawler belt in a power mode, the left traveling wheels and the right traveling wheels are connected through a traveling rotating shaft in a power mode, a traveling motor is fixedly arranged on the right end wall of the traveling groove on the right side, and the right end of the traveling rotating shaft on the front side is connected with the traveling motor in a power mode.
The swing device comprises a power groove with an opening facing the rack, a power gear is arranged in the power groove in a rotating mode through a power shaft, the power gear is connected with the rack in a meshed mode, and the front end of the power shaft is connected with a power motor in a power connection mode.
Wherein, the patching device includes the opening orientation the slip chamber of cable, repair the pipe slide set up in the slip intracavity, it keeps away from to repair the pipe a terminal surface of rolling wheel has set firmly for repair the reset unit that the pipe resets, the slip chamber is kept away from one side of cable is equipped with deposits the chamber, deposit the chamber with the intercommunication is equipped with communicating pipe between the slip chamber, it rotates through the axis of rotation to be equipped with the stirring wheel to deposit the intracavity, the stirring has set firmly the puddler on the wheel, deposit the extrusion board that the intracavity slip was equipped with symmetry from top to bottom, the one end that the extrusion board kept away from each other has set firmly extrusion spring, the axis of rotation rear end is equipped with the meshing gear admittedly, the meshing gear is close to the one end of cable with rack toothing.
Wherein, the regulating device comprises a regulating cavity communicated with the sliding cavity, a traction wheel is rotatably arranged in the regulating cavity, a sliding groove is communicated with the rear side of the regulating cavity through a connecting groove, a sliding block is slidably arranged in the sliding groove, a regulating shaft is rotatably arranged in the sliding block, the front end of the regulating shaft extends into the regulating cavity and is fixedly provided with the regulating wheel, a telescopic spring is fixedly arranged between one end of the sliding block far away from the cable and the sliding groove, one side of the sliding block far away from the telescopic spring is rotatably provided with a reel through a rotating rod, a pull rope fixedly connected with the other end of the sliding block is fixedly wound on the reel, a rotating cavity is arranged at the rear side of the sliding groove, the rear end of the rotating rod extends into the rotating cavity and is fixedly provided with a worm wheel, one side of the worm wheel close to the sliding cavity is engaged with a worm, and a rotating shaft extending to, the cable adjusting device is characterized in that a rotating block is fixedly arranged on the rotating shaft, an opening and closing groove is formed in one side, away from the cable, of the adjusting and controlling cavity, a sealing block close to the rolling wheel is arranged in the opening and closing groove in a sliding mode, one end of the sealing block, away from the sliding cavity, of the sealing block is fixedly provided with a traction rope, a pressure spring is sleeved on the traction rope, and the other end of the traction rope is sequentially wound on the traction wheel and behind the adjusting and controlling wheel and fixedly connected with a reset assembly.
The cable rolling device comprises a cable, a rolling device and a rolling sliding rod, wherein the rolling device comprises a rolling sliding groove with an opening facing the cable, a rolling sliding rod is arranged in the rolling sliding groove in a sliding mode, a rolling wheel is rotatably installed on the rolling sliding rod, and a connecting spring is fixedly arranged between one end, far away from the rolling wheel, of the rolling sliding rod and the rolling sliding groove.
The invention has the beneficial effects that: the invention can detect the damage of the surface of the insulating sleeve through the repairing device, fill rubber in the damaged part through the repairing port, and is provided with two repairing devices, so that the insulating sleeve on the surface of the cable can be repaired under the condition of small-amplitude swing, the use is convenient, and secondly, the cables with different diameters can be repaired through the regulating device, the application range is wide, the detection is comprehensive, the whole process is fully automatically operated, and the working efficiency is high.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
FIG. 1 is a schematic view of the overall structure of a repairing apparatus for an insulation layer of a wire and cable according to the present invention;
FIG. 2 is a schematic view of the structure in the direction "A-A" of FIG. 1;
FIG. 3 is a schematic view of the structure in the direction "B-B" of FIG. 2;
FIG. 4 is a schematic view of the structure in the direction "C-C" of FIG. 1;
FIG. 5 is an enlarged view of the structure of "D" in FIG. 1;
FIG. 6 is a schematic view of the structure in the direction "E-E" of FIG. 5;
FIG. 7 is a schematic view of the structure in the direction "F-F" of FIG. 5.
Detailed Description
The invention will now be described in detail with reference to fig. 1-7, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to a device for repairing an insulating layer of a wire and a cable, which is mainly used for repairing the insulating layer, and the invention is further explained by combining the attached drawings of the invention:
the repairing device for the wire and cable insulating layer comprises an installation block 20, wherein a traveling device 90 is arranged in the installation block 20, the traveling device 90 comprises a rotatable traveling crawler 23 which is bilaterally symmetrical, the traveling crawler 23 rotates to drive the installation block 20 to move, a supporting block 26 is fixedly arranged on the upper end face of the installation block 20, a fixing rod 27 is fixedly arranged on the upper end of the supporting block 26, a rack 28 is fixedly arranged at the front end of the fixing rod 27, two repairing blocks 35 are arranged on the upper side of the rack 28, a groove 48 with a backward opening is arranged in each repairing block 35, the rack 28 penetrates through the groove 48, a connecting block 29 is fixedly arranged between the repairing blocks 35, a swinging device 89 is arranged in the connecting block 29, the swinging device 89 drives the repairing blocks 35 to rotate when in work, a cable 76 is arranged between the repairing blocks 35, and an insulating sleeve 77 is arranged on the surface of the cable 76, be equipped with patching device 88 in repairing the piece 35, patching device 88 includes telescopic repairing pipe 37, and about repairing pipe 37 is close to each other one end and installs repairing mouth 38, repairing mouth 38 can be with the injection of molten rubber the position of treating repairing in insulating cover 77, repairing piece 35 along one side of rack 28 rotation direction is equipped with regulation and control device 87, regulation and control device 87 can be according to the thickness of cable 76 is adjusted repairing the flexible distance of pipe 37, repairing piece 35's opposite side is equipped with rolling press device 86, rolling press device 86 includes rotatable rolling wheel 75, and the position that has filled with molten rubber passes through rolling wheel 75 carries out the roll extrusion and levels.
According to an embodiment, the traveling device 90 is described in detail below, the traveling device 90 includes a left-right symmetric traveling groove 21, the traveling wheels 22 are rotatably provided in the traveling groove 21, the front traveling wheels 22 and the rear traveling wheels are power-connected by a traveling crawler 23, the left traveling wheels 22 and the right traveling wheels 22 are power-connected by a traveling rotating shaft 24, a traveling motor 25 is fixedly provided on a right end wall of the right traveling groove 21, and a right end of the front traveling rotating shaft 24 is power-connected to the traveling motor 25.
According to an embodiment, the swing device 89 is described in detail below, the swing device 89 includes a power groove 30 having an opening facing the rack 28, a power gear 32 is rotatably disposed in the power groove 30 through a power shaft 31, the power gear 32 is engaged with the rack 28, and a power motor 33 is dynamically connected to a front end of the power shaft 31.
In accordance with an embodiment, the following detailed description of the patching device 88, the patching device 88 includes a sliding cavity 36 opening towards the cable 76, the repairing tube 37 is slidably arranged in the sliding cavity 36, a restoring component 60 for restoring the repairing tube 37 is fixedly arranged on one end face of the repairing tube 37 far away from the rolling wheel 75, a storage cavity 40 is arranged on one side of the sliding cavity 36 far away from the cable 76, a communicating pipe 39 is communicated between the storage cavity 40 and the sliding cavity 36, a stirring wheel 43 is rotatably arranged in the storage cavity 40 through a rotating shaft 41, a stirring rod 44 is fixedly arranged on the stirring wheel 43, the storage cavity 40 is internally and slidably provided with extruding plates 46 which are symmetrical up and down, one ends of the extruding plates 46 which are far away from each other are fixedly provided with extruding springs 47, the rear end of the rotating shaft 41 is fixedly provided with a meshing gear 45, and one end of the meshing gear 45 close to the cable 76 is meshed with the rack 28.
According to the embodiment, the following detailed description is provided for the regulation and control device 87, the regulation and control device 87 includes a regulation and control cavity 53 communicated with the sliding cavity 36, a traction wheel 58 is rotatably disposed in the regulation and control cavity 53, a sliding groove 55 is communicated with the rear side of the regulation and control cavity 53 through a connecting groove 54, a sliding block 62 is slidably disposed in the sliding groove 55, a regulation and control shaft 56 is rotatably disposed in the sliding block 62, the front end of the regulation and control shaft 56 extends into the regulation and control cavity 53 and is fixedly provided with a regulation and control wheel 57, an extension spring 63 is fixedly disposed between one end of the sliding block 62 far away from the cable 76 and the sliding groove 55, a reel 64 is rotatably disposed on one side of the sliding block 62 far away from the extension spring 63 through a rotating rod 68, a pull rope 65 fixedly connected with the sliding block 62 at the other end is fixedly wound on the reel 64, a rotating cavity 66 is disposed on the rear side of the sliding groove 55, a worm wheel 67, one side of the worm wheel 67 close to the sliding cavity 36 is connected with a worm 69 in a meshing manner, the center of the worm 69 is fixedly provided with a rotating shaft 71 extending to the outside, the rotating shaft 71 is fixedly provided with a rotating block 70, one side of the adjusting and controlling cavity 53 far away from the cable 76 is provided with an opening and closing groove 51, one end of the opening and closing groove 51 close to the rolling wheel 75 is slidably provided with a sealing block 50 extending into the sliding cavity 36, one end of the sealing block 50 far away from the sliding cavity 36 is fixedly provided with a traction rope 59, the traction rope 59 is sleeved with a pressure spring 52, and the other end of the traction rope 59 is sequentially wound on the traction wheel 58 and the adjusting and controlling wheel 57 and is fixedly connected with the resetting component 60.
According to an embodiment, the rolling device 86 is described in detail below, the rolling device 86 includes a rolling chute 72 with an opening facing the cable 76, a rolling slide rod 73 is slidably disposed in the rolling chute 72, the rolling wheel 75 is rotatably mounted on the rolling slide rod 73, and a connecting spring 74 is fixedly disposed between an end of the rolling slide rod 73 away from the rolling wheel 75 and the rolling chute 72.
The following will describe in detail the use steps of the repairing device for the insulation layer of the wire and cable in the present document with reference to fig. 1 to 7:
initially, the slide block 62 is at a limit position away from the reel 64, the extension spring 63 is in a natural state, the rubber in a molten state is stored in the storage chamber 40, and the pressing spring 47 is in a compressed state.
When the repairing device works, according to the overall thickness of the cable 76 and the insulating sleeve 77, the rotating block 70 is manually rotated, so that the worm 69 drives the worm wheel 67 to rotate, the reel 64 rotates the winding rope 65, the sliding block 62 is pulled to move towards the reel 64, the distance of the adjusting wheel 57 is adjusted, the smaller the diameter of the insulating sleeve 77 is, the larger the reverse movement distance of the adjusting wheel 57 towards the reel 64 is, when the repairing pipe 37 is abutted against the insulating sleeve 77, the resetting component 60 is in a compressed state, the traction rope 59 is straightened, the sealing block 50 is not pulled, and at the moment, the rubber in the storage cavity 40 does not flow into the repairing pipe 37;
then, the power motor 33 is started to drive the power gear 32 to rotate, the connecting block 29 drives the repairing block 35 to rotate anticlockwise under the action of the rack 28, the surface of the insulating sleeve 77 is detected through the repairing pipe 37, when the repairing pipe 37 encounters a pit or a damage on the surface of the insulating sleeve 77, the repairing pipe moves towards the direction close to the insulating sleeve 77 under the action of the elastic recovery force of the resetting component 60, the sealing block 50 is pulled to move through the traction rope 59, so that the communicating pipe 39 and the repairing pipe 37 are communicated, the upper and lower extrusion plates 46 are extruded towards each other under the elastic force of the extrusion spring 47, the molten rubber is filled at the damaged part on the insulating sleeve 77 through the repairing port 38, when the repairing block 35 continues to move, the rolling wheel 75 is driven to rotate, the rolling wheel 75 is driven to roll the filled part evenly, and the meshing gear 45 rotates to drive the stirring rod 44 to rotate in the process that the repairing block 35 moves around the rack, so that the rubber in the storage cavity 40 cannot be condensed, and the repairing block 35 can finish one-circle repairing on the surface of the insulating sleeve 77 after swinging for one hundred eighty degrees along the rack 28;
then, the moving motor 25 is started to drive the moving rotating shaft 24 to rotate, so that the left and right moving crawlers 23 synchronously rotate to drive the rack 28 and the repairing block 35 to move along the insulating sleeve 77, and the periphery of the insulating sleeve 77 is gradually detected and repaired.
The invention has the beneficial effects that: the invention can detect the damage of the surface of the insulating sleeve through the repairing device, fill rubber in the damaged part through the repairing port, and is provided with two repairing devices, so that the insulating sleeve on the surface of the cable can be repaired under the condition of small-amplitude swing, the use is convenient, and secondly, the cables with different diameters can be repaired through the regulating device, the application range is wide, the detection is comprehensive, the whole process is fully automatically operated, and the working efficiency is high.
In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.

Claims (6)

1. The utility model provides a patching device of wire and cable insulating layer, includes the installation piece, its characterized in that: a traveling device is arranged in the mounting block;
the travelling device comprises a rotatable travelling crawler which is bilaterally symmetrical, the travelling crawler rotates to drive the mounting block to move, a supporting block is fixedly arranged on the upper end surface of the mounting block, a fixing rod is fixedly arranged at the upper end of the supporting block, a rack is fixedly arranged at the front end of the fixing rod, two repairing blocks are arranged on the upper side of the rack, a groove with a backward opening is formed in each repairing block, and the rack penetrates through the groove;
connecting blocks are fixedly arranged between the repairing blocks, a swinging device is arranged in each connecting block, the swinging devices drive the repairing blocks to rotate when working, cables are arranged between the repairing blocks, and insulating sleeves wrap the surfaces of the cables;
the utility model discloses a repair device, including the insulating cover, the insulating cover is equipped with the rack rotation direction, repair the piece and be equipped with the patching device, the patching device includes that the telescopic repairs the pipe, about repair the one end that the pipe is close to each other and install the mouth of repairing, the mouth of repairing can pour into fused rubber into the position of treating repairing in the insulating cover, repair the piece along one side of rack rotation direction is equipped with the regulation and control device, the regulation and control device can be according to the thickness of cable is adjusted the flexible distance of repairing the pipe, the opposite side of repairing the piece is equipped with rolling press device, rolling press device includes rotatable rolling wheel, and the position that has filled with.
2. The apparatus for repairing an insulation layer of an electric wire or cable according to claim 1, wherein: the traveling device comprises a left traveling groove and a right traveling groove which are symmetrical;
the front travelling wheel and the rear travelling wheel are symmetrically arranged in the travelling groove in a rotating mode, the front travelling wheel and the rear travelling wheel are in power connection through a travelling crawler belt, the left travelling wheel and the right travelling wheel are in power connection through a travelling rotating shaft, a travelling motor is fixedly arranged on the right end wall of the travelling groove on the right side, and the right end of the travelling rotating shaft on the front side is in power connection with the travelling motor.
3. The apparatus for repairing an insulation layer of an electric wire or cable according to claim 1, wherein: the swinging device comprises a power groove with an opening facing the rack;
and a power gear is arranged in the power groove in a rotating manner through a power shaft, the power gear is meshed with the rack, and the front end of the power shaft is dynamically connected with a power motor.
4. The apparatus for repairing an insulation layer of an electric wire or cable according to claim 1, wherein: the repair device comprises a sliding cavity opening towards the cable;
repair the pipe slide set up in the slip intracavity, repair the pipe and keep away from a terminal surface of rolling wheel has set firmly be used for repair the reset assembly that the pipe resets, the slip chamber is kept away from one side of cable is equipped with deposits the chamber, deposit the chamber with the intercommunication is equipped with communicating pipe between the slip chamber, it rotates through the axis of rotation to be equipped with the stirring wheel to deposit the intracavity, the stirring takes turns to and has set firmly the puddler, deposit the extrusion board that the intracavity slip was equipped with the symmetry from top to bottom, the one end that the extrusion board kept away from each other has set firmly the extrusion spring, the axis of rotation rear end is equipped with the meshing gear admittedly, the meshing gear is close to the one end of cable with rack.
5. The apparatus for repairing an insulation layer of an electric wire or cable according to claim 1, wherein: the regulating device comprises a regulating cavity communicated with the sliding cavity;
a traction wheel is rotatably arranged in the regulating cavity, the rear side of the regulating cavity is communicated with a sliding groove through a connecting groove, a sliding block is arranged in the sliding groove in a sliding manner, a regulating and controlling shaft is rotationally arranged in the sliding block, the front end of the regulating and controlling shaft extends into the regulating and controlling cavity and is fixedly provided with a regulating and controlling wheel, an extension spring is fixedly arranged between one end of the sliding block far away from the cable and the sliding groove, a reel is rotatably arranged on one side of the sliding block far away from the extension spring through a rotating rod, a pull rope with the other end fixedly connected with the sliding block is fixedly wound on the reel, a rotating cavity is arranged at the rear side of the sliding groove, the rear end of the rotating rod extends into the rotating cavity and is fixedly provided with a worm wheel, one side of the worm wheel close to the sliding cavity is connected with a worm in a meshing way, a rotating shaft extending to the outside is fixedly arranged at the center of the worm, and a rotating block is fixedly arranged on the rotating shaft;
one side that the regulation and control chamber was kept away from the cable is equipped with the groove of opening and shutting, it is equipped with to slide in the groove of opening and shutting is close to the one end of rolling wheel extends to the sealed piece of slip intracavity, sealed piece is kept away from slip chamber one end has set firmly the haulage rope, the cover is equipped with pressure spring on the haulage rope, the haulage rope other end in proper order around locate the haulage wheel reaches behind the regulation and control wheel with reset assembly fixed connection.
6. The apparatus for repairing an insulation layer of an electric wire or cable according to claim 1, wherein: the rolling device comprises a rolling chute with an opening facing the cable;
the rolling device is characterized in that a rolling sliding rod is arranged in the rolling sliding groove in a sliding mode, the rolling wheel is rotatably installed on the rolling sliding rod, and a connecting spring is fixedly arranged between one end, far away from the rolling wheel, of the rolling sliding rod and the rolling sliding groove.
CN202010007172.7A 2020-01-04 2020-01-04 Repairing device for wire and cable insulating layer Active CN110994484B (en)

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Application Number Priority Date Filing Date Title
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CN110994484B CN110994484B (en) 2021-01-22

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CN112152137A (en) * 2020-09-15 2020-12-29 南京小科咪商贸有限公司 Device for detecting and automatically repairing damaged part of sheath of electric wire and cable
CN113092957A (en) * 2021-03-17 2021-07-09 刘光桐 Equipment for detecting and repairing insulating property of insulating layer in semiconductor material
CN113488927A (en) * 2021-07-21 2021-10-08 仪军电线电缆(惠州)有限公司 Cable repairing device
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CN114055815A (en) * 2021-11-15 2022-02-18 刘力朝 Maintenance equipment for maintaining cable
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CN113092957A (en) * 2021-03-17 2021-07-09 刘光桐 Equipment for detecting and repairing insulating property of insulating layer in semiconductor material
CN113488927A (en) * 2021-07-21 2021-10-08 仪军电线电缆(惠州)有限公司 Cable repairing device
CN113488927B (en) * 2021-07-21 2022-10-21 仪军电线电缆(惠州)有限公司 Cable repairing device
CN113572089A (en) * 2021-09-27 2021-10-29 南通市东风特种电线有限公司 Intelligent cable maintenance device
CN113572089B (en) * 2021-09-27 2021-12-03 南通市东风特种电线有限公司 Intelligent cable maintenance device
CN114055815A (en) * 2021-11-15 2022-02-18 刘力朝 Maintenance equipment for maintaining cable
CN114243589A (en) * 2021-12-28 2022-03-25 代学强 Automatic cable maintenance and overhaul equipment for ocean engineering
CN118017405A (en) * 2024-04-08 2024-05-10 天津滨电电力工程有限公司 Power cable buffer layer defect repair equipment and use method thereof

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