CN114421381B - Cable protection device for wind generating set - Google Patents
Cable protection device for wind generating set Download PDFInfo
- Publication number
- CN114421381B CN114421381B CN202111640908.5A CN202111640908A CN114421381B CN 114421381 B CN114421381 B CN 114421381B CN 202111640908 A CN202111640908 A CN 202111640908A CN 114421381 B CN114421381 B CN 114421381B
- Authority
- CN
- China
- Prior art keywords
- fixed
- ring
- cable body
- cable
- plate
- 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.)
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Links
- 238000004804 winding Methods 0.000 claims abstract description 11
- 230000006835 compression Effects 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims abstract description 7
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 238000005452 bending Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 3
- 244000309464 bull Species 0.000 claims 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- 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
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0462—Tubings, i.e. having a closed section
- H02G3/0481—Tubings, i.e. having a closed section with a circular cross-section
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
-
- 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
- H02G15/00—Cable fittings
- H02G15/007—Devices for relieving mechanical stress
-
- 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
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention provides a cable protection device for a wind generating set, which comprises a fixed plate, wherein a group of perforations penetrating through the bottom of the fixed plate are formed in the top of the fixed plate, a protection pipe fixed on the top of the fixed plate is communicated with the perforations, two arc-shaped shells which are symmetrically distributed and used for winding a cable body are arranged in the protection pipe, and a compression piece used for separating the two arc-shaped shells is also arranged in the protection pipe; the top of the protection pipe is communicated with a connecting pipe, and a fixing ring is fixed in the connecting pipe. After the cable body is fixed, the extending part of the cable body is reserved, so that when the cable body shakes, the reserved part of the cable body is stretched, the cable body is prevented from being repeatedly pulled to break, the shaking amplitude of the cable body is counteracted to a certain extent, the pressure born by the fixing plate is relieved, and the cable body and the fixing plate are prevented from loosening.
Description
Technical Field
The invention relates to the technical field of cable protection devices, in particular to a cable protection device for a wind generating set.
Background
Wind energy is clean and pollution-free renewable energy, a wind driven generator converts wind energy into mechanical work, the mechanical work drives a rotor to rotate, and finally alternating current is output, and the wind driven generator generally comprises wind wheels, generators (including devices), direction regulators (tail wings), towers, speed-limiting safety mechanisms, energy storage devices and other components; when the wind generating set operates, the types of the used cables are various, meanwhile, the cables in the tower barrel of the wind generating set can hang down for tens of meters or tens of meters according to the height of the tower barrel, when external wind force is generated, particularly when the tower barrel of the wind generating set positioned at the sea is overlarge due to the overlarge wind force of sea, the tower barrel swings under the influence of wind force, and the part of the cable hung in the tower swings along with the swinging, so that a plurality of cables are rubbed with each other or damaged after impacting the inner wall of the tower barrel; therefore, a device for fixing the cable overhang parts is arranged in the tower barrel at present, a plurality of cables are fixed one by one after being separated, and the conditions that the cables are rubbed with each other due to shaking when the tower barrel shakes due to overlarge wind force are prevented; but after the cable is fixed in the tower section of thick bamboo through fixing device, fixing device carries out hard fixed to the cable, and it pulls cable itself repeatedly when the tower section of thick bamboo rocks, can lead to the cable itself to appear damaging equally, causes the circumstances that the cable breaks to appear even when serious, perhaps when the cable is pulled repeatedly, causes fixing device to appear not hard up after, the cable can take place the friction between with fixing device, causes the circumstances that the cable appears wearing and tearing.
Disclosure of Invention
The invention discloses a cable protection device for a wind generating set, which solves the problems that when a tower drum shakes, the cable is repeatedly pulled, and the cable is damaged, or when the cable is repeatedly pulled, the cable and the fixing device are rubbed after loosening the fixing device.
In order to solve the technical problems, the invention adopts the following technical scheme:
the cable protection device for the wind generating set comprises a fixed plate, wherein a group of perforations penetrating through the bottom of the fixed plate are formed in the top of the fixed plate, a protection tube fixed on the top of the fixed plate is communicated with the perforations, two arc-shaped shells which are symmetrically distributed and used for winding a cable body are arranged in the protection tube, and a compression piece used for separating the two arc-shaped shells is further arranged in the protection tube; the top of the protection pipe is communicated with a connecting pipe, a fixed ring is fixed in the connecting pipe, a movable ring positioned above the fixed ring is connected in the connecting pipe in a sliding manner, and a spring is fixed between the fixed ring and the movable ring; the surface of the cable body is fixed with the inner wall of the movable ring, and the part of the cable body between the fixed ring and the movable ring is in a bending state.
Compared with the prior art, the invention has the following beneficial effects:
the fixing plate is fixed in the tower, one end of the cable body passes through the perforation and then enters the protection tube, the cable body is wound around the outer walls of the two arc-shaped shells for one time (the cable body does not enter between the two arc-shaped shells), then the cable body passes through the inner sides of the fixing ring and the moving ring, the surface of the cable body is fixed with the inner wall of the moving ring, the end part of the cable body extends out of the moving ring, and a group of perforation on the fixing plate distinguishes a plurality of cable bodies, so that gaps are reserved between each cable body; when the tower drum shakes due to overlarge external wind force, one end (the part above the movable ring) of the cable body positioned at a high position moves upwards along with the shaking, so that the movable ring stretches the spring, the part of the cable body positioned between the fixed ring and the movable ring and in a bending state is slightly straightened, the cable body is provided with an extensible part, and meanwhile, the shaking amplitude of the cable body is limited, so that a plurality of cable bodies are prevented from being mutually collided; meanwhile, the part wound on the arc-shaped shell can prevent the part of the cable body positioned above the arc-shaped shell from shaking and then drive the part of the cable body positioned below the arc-shaped shell to shake; when the shaking amplitude of the part of the cable body above the movable ring is too large under the conditions of too large wind force and the like, after the cable body is straightened in a bent state between the fixed ring and the movable ring, the part of the cable body wound on the two arc-shaped shells is tightened, so that the part of the cable body which can extend to is further increased after the compression piece is extruded by the two arc-shaped shells; after the cable body is fixed, the extending part of the cable body is reserved, so that when the cable body shakes, the reserved part of the cable body is stretched, the cable body is prevented from being repeatedly pulled to break, the shaking amplitude of the cable body is counteracted to a certain extent, the pressure born by the fixing plate is relieved, and the cable body and the fixing plate are prevented from loosening.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention in elevation;
FIG. 2 is a schematic cross-sectional view of a mounting plate of the present invention;
FIG. 3 is a schematic top view of the fixing plate of the present invention;
FIG. 4 is a schematic top view of the connecting ring of the present invention;
fig. 5 is an enlarged schematic view of the structure at a in fig. 2.
In the figure: 1. a fixing plate; 2. perforating; 3. a protective tube; 31. an arc-shaped shell; 4. a telescoping plate; 41. an alarm; 42. an extrusion rod; 5. a connecting pipe; 51. a fixing ring; 52. a moving ring; 53. a spring; 54. a limit rod; 55. an annular block; 6. a cable body; 7. a limiting ring; 8. a connecting ring; 81. a fixed rod; 82. a sponge ring; 83. a pull rope; 84. a motor; 841. a wind-up roll; 842. a fixing frame; 843. a connecting frame; 844. and (5) rotating the rod.
Detailed Description
The details of the present invention are described below in conjunction with the accompanying drawings and examples.
As shown in fig. 1, 2 and 3, the invention provides a cable protection device for a wind generating set, which comprises a fixed plate 1, wherein a group of perforations 2 penetrating through the bottom of the fixed plate 1 are formed in the top of the fixed plate 1, a protection tube 3 fixed on the top of the fixed plate 1 is communicated with the perforations 2, two arc shells 31 which are symmetrically distributed and used for winding a cable body 6 are arranged in the protection tube 3, and a compression piece for separating the two arc shells 31 is also arranged in the protection tube 3; the top of the protection tube 3 is communicated with a connecting tube 5, a fixed ring 51 is fixed in the connecting tube 5, a movable ring 52 positioned above the fixed ring 51 is connected in a sliding manner in the connecting tube 5, and a spring 53 is fixed between the fixed ring 51 and the movable ring 52; the surface of the cable body 6 is fixed with the inner wall of the movable ring 52, and the part of the cable body 6 between the fixed ring 51 and the movable ring 52 is in a bending state.
As shown in fig. 1, 2, 4 and 5, a group of connecting rings 8 are arranged at the bottom of the fixing plate 1, one group of connecting rings 8 respectively correspond to one group of through holes 2, a fixing rod 81 is fixed between two adjacent connecting rings 8, and a ring-shaped sponge ring 82 is fixed at the inner side of the connecting ring 8; a motor 84 is fixed at the bottom of the fixed plate 1, a winding roller 841 is fixed on a rotating shaft of the motor 84, a pull rope 83 is fixed on the winding roller 841, and one end of the pull rope 83, which is away from the winding roller 841, is fixed with a fixed rod 81; the bottom of the fixed plate 1 is fixed with a connecting frame 843 and a fixing frame 842, a rotating rod 844 for assisting the pull rope 83 to move is rotatably connected to the inner side of the connecting frame 843, and the motor 84 is located on the inner side of the fixing frame 842. When the tower is in different environments, the motor 84 can be started when the part of the cable body 6 between the fixed plate 1 and the ground is wet or full of dust, the motor 84 adopts a servo motor, and after the winding roller 841 rotates, the stay rope 83 is repeatedly unreeled or wound, so that after a group of connecting rings 8 repeatedly move up and down, the sponge ring 82 can effectively treat dust or moisture on the cable body 6, and the rotating rod 844 can assist the movement of the stay rope 83; after cleaning the cable body 6 each time, the staff only needs to replace the sponge ring 82, and the cable body 6 is not required to be cleaned by climbing.
As shown in fig. 2, an annular block 55 with a diameter larger than the diameter of the inner ring of the fixed ring 51 is arranged at the top of the fixed ring 51, and the inner side of the annular block 55 is fixed with the surface of the cable body 6; a stop rod 54 penetrating through the moving ring 52 and slidably connected with the moving ring 52 is fixed on the top of the fixed ring 51, and the stop rod 54 penetrates through the inner side of the spring 53. The annular block 55 can prevent the cable body 6 from falling downwards at the bent part, so that the cable body 6 is ensured to be in a bent state at the part between the fixed ring 51 and the movable ring 52; the limiting rod 54 can prevent the spring 53 from shaking randomly; while the number of springs 53 and stopper rods 54 is plural, so as to facilitate the upward sliding or restoring of the auxiliary moving ring 52.
As shown in fig. 2, the compression member includes two expansion plates 4 that are vertically symmetrically distributed, the fixed ends of the two expansion plates 4 are both fixed in the protection tube 3, and the expansion ends of the two expansion plates 4 are staggered and fixed with the opposite surfaces of the two arc-shaped shells 31 respectively. When the cable body 6 is wound on the two arc shells 31, the two arc shells 31 compress the two expansion plates 4 respectively, the two arc shells 31 are mutually close, and the extending part of the cable body 6 is further provided, so that the situation that the cable body 6 is pulled rigidly is avoided; the expansion plate 4 is divided into a casing, a transverse plate and a strong spring, the strong spring is fixed in the casing, the transverse plate is inserted into the casing and fixed with one end of the strong spring, and the arc-shaped shell 31 compresses the strong spring by pushing the transverse plate.
As shown in fig. 2, an alarm 41 is fixed to the top of the fixed end of the expansion plate 4 above, and a squeeze rod 42 is fixed to the top of the expansion end of the expansion plate 4 above. When the telescopic end (transverse plate) of the telescopic plate 4 repeatedly moves, after the extrusion rod 42 extrudes the alarm 41 for a plurality of times, the wind power is excessively large, and all reserved parts of the cable body 6 are stretched, and when the alarm 41 is started for a certain number of times, a worker is required to overhaul the cable body 6 or the alarm 41, so that the normal use of the cable body 6 or the alarm 41 is ensured.
As shown in fig. 2, a limiting ring 7 is fixed on the inner side of the through hole 2, and the diameter of the inner ring of the limiting ring 7 is the same as that of the cable body 6. After flexible materials such as rubber and the like are fixed on the inner side of the limiting ring 7, the cable body 6 and the limiting ring 7 can be fixed, and the stability of the cable body 6 is improved.
When the cable body 6 is in use, when the tower drum shakes, the shaking amplitude of the upward part of the tower drum is larger, so that the cable body 6 stretches the spring 53 through the moving ring 52 when the part of the cable body 6 above the connecting pipe 5 shakes, the bent part of the cable body 6 is slightly straightened, the cable body 6 is prevented from being directly pulled, and meanwhile, the shaking degree of the cable body 6 can be counteracted by the resistance of the spring 53; when the shaking degree of the cable body 6 is too large, the bent part of the cable body 6 is straightened, and the part wound on the two arc shells 31 is tightened, so that the two arc shells 31 are mutually closed to provide the cable body 6 with extension in the shaking process, and further the cable body 6 is prevented from being rigidly pulled; meanwhile, the top of the connecting pipe 5 is flush with the top of the movable ring 52, so that the limiting rod 54 extends out of the connecting pipe 5, and the cable body 6 is prevented from touching the top of the connecting pipe 5 when shaking; the protection tube 3 is provided with a spherical top and a vertical tube bottom, and the two arc shells 31 are both positioned in the spherical protection tube 3 so as to provide a larger moving distance for the two arc shells 31; the set of perforations 2 are distributed as shown in fig. 3 to better space the plurality of cable bodies 6 with sufficient clearance between the plurality of cable bodies 6.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a cable protection device for wind generating set, includes fixed plate (1), and perforation (2) of its bottom are run through to a set of in the top of fixed plate (1), its characterized in that: the protection tube (3) fixed at the top of the fixed plate (1) is communicated with the perforation (2), two arc shells (31) which are symmetrically distributed and used for winding the cable body (6) are arranged in the protection tube (3), and a compression piece used for separating the two arc shells (31) is also arranged in the protection tube (3); the top of the protection pipe (3) is communicated with a connecting pipe (5), a fixed ring (51) is fixed in the connecting pipe (5), a movable ring (52) positioned above the fixed ring (51) is connected in a sliding manner in the connecting pipe (5), and a spring (53) is fixed between the fixed ring (51) and the movable ring (52); the surface of the cable body (6) is fixed with the inner wall of the movable ring (52), and the part of the cable body (6) between the fixed ring (51) and the movable ring (52) is in a bending state.
2. The cable protection device for a wind turbine generator system according to claim 1, wherein: the bottom of the fixing plate (1) is provided with a group of connecting rings (8), one group of connecting rings (8) respectively correspond to one group of perforations (2), a fixing rod (81) is fixed between two adjacent connecting rings (8), a sponge ring (82) is fixed on the inner side of each connecting ring (8), and one end of the cable body (6) penetrates through the inner side of each sponge ring (82); a motor (84) is fixed at the bottom of the fixed plate (1), a winding roller (841) is fixed on a rotating shaft of the motor (84), a pull rope (83) is fixed on the winding roller (841), and one end of the pull rope (83) deviating from the winding roller (841) is fixed with a fixed rod (81); the bottom of fixed plate (1) is fixed with link (843) and mount (842), the inboard rotation of link (843) is connected with bull stick (844) that supplementary stay cord (83) removed, motor (84) are located the inboard of mount (842).
3. The cable protection device for a wind turbine generator system according to claim 1, wherein: an annular block (55) with the diameter larger than the diameter of the inner ring of the fixed ring (51) is arranged at the top of the fixed ring (51), and the inner side of the annular block (55) is fixed with the surface of the cable body (6); a limiting rod (54) penetrating through the movable ring (52) and in sliding connection with the movable ring (52) is fixed on the top of the fixed ring (51), and the limiting rod (54) penetrates through the inner side of the spring (53).
4. The cable protection device for a wind turbine generator system according to claim 1, wherein: the compression piece comprises two telescopic plates (4) which are vertically symmetrically distributed, the fixed ends of the two telescopic plates (4) are fixed in the protection tube (3), and the telescopic ends of the two telescopic plates (4) are distributed in a staggered mode and are fixed with the opposite faces of the two arc-shaped shells (31) respectively.
5. The cable protection device for a wind turbine of claim 4, wherein: the top of the fixed end of the expansion plate (4) positioned above is fixed with an alarm (41), and the top of the expansion end of the expansion plate (4) positioned above is fixed with an extrusion rod (42).
6. The cable protection device for a wind turbine generator system according to claim 1, wherein: and a limiting ring (7) is fixed on the inner side of the through hole (2), and the diameter of the inner ring of the limiting ring (7) is the same as that of the cable body (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111640908.5A CN114421381B (en) | 2021-12-29 | 2021-12-29 | Cable protection device for wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111640908.5A CN114421381B (en) | 2021-12-29 | 2021-12-29 | Cable protection device for wind generating set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114421381A CN114421381A (en) | 2022-04-29 |
| CN114421381B true CN114421381B (en) | 2023-10-20 |
Family
ID=81268969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111640908.5A Active CN114421381B (en) | 2021-12-29 | 2021-12-29 | Cable protection device for wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114421381B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006062545A1 (en) * | 2006-12-29 | 2008-07-03 | Flexa Gmbh & Co. Produktion Und Vertrieb Kg | Cable protective tube for protecting electrical and pneumatic lines and tubes, has closure unit keeping longitudinal edges along slots in plane in aligned manner, where closure unit is separate profile part, which has cross-sectional form |
| KR200448709Y1 (en) * | 2010-01-22 | 2010-05-11 | (주)나이스에너지엔지니어링 | Deflection device of high voltage cable |
| CN109616992A (en) * | 2018-12-25 | 2019-04-12 | 湖北鄂电萃宇电器有限公司 | A kind of cable distribution line and cable installation system |
| KR102056228B1 (en) * | 2019-11-13 | 2020-01-22 | (주)골드이엔지 | Electric wire distributor used on the inner bottom floor of apartment house |
| CN213042695U (en) * | 2020-10-16 | 2021-04-23 | 砀山红旗电缆有限公司 | Stretch-proofing anti-distortion cable |
| CN213717558U (en) * | 2020-09-05 | 2021-07-16 | 湖南金泰材料科技有限公司 | Cable protection device |
| CN113437717A (en) * | 2020-03-23 | 2021-09-24 | 杭州辉吉信息技术有限公司 | Cable breakage protection device capable of controlling melting point of ice layer |
| CN214706977U (en) * | 2021-05-08 | 2021-11-12 | 湖北工业大学 | High-temperature fault early warning device for wire harness |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7168275B2 (en) * | 2004-12-28 | 2007-01-30 | Alpha Security Products, Inc. | Cable wrap security device |
-
2021
- 2021-12-29 CN CN202111640908.5A patent/CN114421381B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006062545A1 (en) * | 2006-12-29 | 2008-07-03 | Flexa Gmbh & Co. Produktion Und Vertrieb Kg | Cable protective tube for protecting electrical and pneumatic lines and tubes, has closure unit keeping longitudinal edges along slots in plane in aligned manner, where closure unit is separate profile part, which has cross-sectional form |
| KR200448709Y1 (en) * | 2010-01-22 | 2010-05-11 | (주)나이스에너지엔지니어링 | Deflection device of high voltage cable |
| CN109616992A (en) * | 2018-12-25 | 2019-04-12 | 湖北鄂电萃宇电器有限公司 | A kind of cable distribution line and cable installation system |
| KR102056228B1 (en) * | 2019-11-13 | 2020-01-22 | (주)골드이엔지 | Electric wire distributor used on the inner bottom floor of apartment house |
| CN113437717A (en) * | 2020-03-23 | 2021-09-24 | 杭州辉吉信息技术有限公司 | Cable breakage protection device capable of controlling melting point of ice layer |
| CN213717558U (en) * | 2020-09-05 | 2021-07-16 | 湖南金泰材料科技有限公司 | Cable protection device |
| CN213042695U (en) * | 2020-10-16 | 2021-04-23 | 砀山红旗电缆有限公司 | Stretch-proofing anti-distortion cable |
| CN214706977U (en) * | 2021-05-08 | 2021-11-12 | 湖北工业大学 | High-temperature fault early warning device for wire harness |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114421381A (en) | 2022-04-29 |
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