CN110912030B - Cylindrical adjustable auxiliary traction head for power cable threading device - Google Patents
Cylindrical adjustable auxiliary traction head for power cable threading device Download PDFInfo
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- CN110912030B CN110912030B CN201911287387.2A CN201911287387A CN110912030B CN 110912030 B CN110912030 B CN 110912030B CN 201911287387 A CN201911287387 A CN 201911287387A CN 110912030 B CN110912030 B CN 110912030B
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- mounting
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- power 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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
- H02G1/081—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using pulling means at cable ends, e.g. pulling eyes or anchors
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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a cylindrical adjustable auxiliary traction head for a power cable threading device, which comprises an installation shaft, wherein a plurality of first balls are rotatably installed on the bottom wall of the installation shaft, a plurality of second balls are movably installed on the outer side wall of the bottom end of the installation shaft and are respectively positioned at two sides of the first balls, an installation plate is fixedly installed at one end of the installation shaft, an installation block is movably installed on the installation plate, a circular scraper blade is detachably installed at one end, away from the installation plate, of the installation block, a connection ring is fixedly installed on the outer side wall, away from one side of the installation block, of the circular scraper blade, a traction line is connected onto the connection ring, and a connection buckle mutually matched with the. According to the invention, the circular scraper with a proper size can be installed on the installation block according to the inner diameter of the power cable pipeline, and the telescopic rod sub-rod and the third ball are moved to proper positions to be fixed, so that the power cable pipeline installation device can be suitable for power cable pipelines with different sizes, and has the advantages of wide application range and good practical effect.
Description
Technical Field
The invention relates to the technical field of power cable installation, in particular to a cylindrical adjustable auxiliary traction head of a power cable threading device.
Background
In the electric power construction process, because the pipeline of power cable construction belongs to the disguised engineering, consequently cable laying personnel can not follow the knowledge to the construction quality in the pipeline and particular case, this greatly increased the degree of difficulty of construction, and power cable pipeline is not sealed pipeline moreover, and the rainwater can be smugglied some rubbish and block up the pipeline and cause the damage to dragging in-process cable epidermis secretly to influence construction quality and efficiency.
Through retrieval, chinese patent No. CN203596560U discloses a supplementary traction head of power cable threading apparatus with adjustable tube-shape, including the connector of clearance dish, cavity barrel, gyro wheel and connecting cable and pull wire, the clearance dish including control parallel arrangement's first clearance dish, second clearance dish, first clearance dish and second clearance dish between be equipped with and be used for connecting the cavity barrel between them, first clearance dish and second clearance dish all are equipped with a plurality of gyro wheels, first clearance dish and second clearance dish be discoid, all be equipped with connector perforation and be located a plurality of connecting holes on connector perforation quotation periphery on first clearance dish, the second clearance dish on both ends be equipped with the screw that is relative with the connecting hole, thereby the screw passes through first clearance dish or second clearance dish connecting hole after with cavity barrel screw threaded connection first clearance dish, The hollow cylinder and the second cleaning disc are assembled into a whole; the diameters of the first cleaning disc and the second cleaning disc are larger than the diameter of the cable and the outer diameter of the hollow cylinder; an elastic piece is arranged between the roller and the cleaning disc to ensure that the roller can move radially so as to change the size of the roller extending out of the cleaning disc.
The conventional cylindrical adjustable auxiliary traction head of the power cable threading device has the following defects: the roller wheel can only be used for the power cable pipeline with fixed inner diameter size, the use limitation is large, and the roller wheel is easy to be blocked by sundries and cannot move when in use, so that the inner side wall of the power cable pipeline is abraded.
Disclosure of Invention
The invention aims to solve the problem that the design of an auxiliary traction head of a cylindrical adjustable power cable threading device in the prior art is unreasonable, and provides the auxiliary traction head of the cylindrical adjustable power cable threading device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a cylindrical adjustable auxiliary traction head of a power cable threading device comprises an installation shaft, wherein a plurality of first balls are rotatably arranged on the bottom wall of the installation shaft, a plurality of second balls are movably arranged on the outer side wall at the bottom end of the installation shaft, the second ball bearings are respectively positioned at the two sides of the first ball bearing, one end of the mounting shaft is fixedly provided with a mounting plate, the mounting plate is movably provided with a mounting block, one end of the mounting block far away from the mounting plate is detachably provided with a circular scraper, the outer side wall of one side of the circular scraper far away from the mounting block is fixedly provided with a connecting ring, the connecting ring is connected with a traction wire, the traction line is fixedly provided with a connecting buckle matched with the connecting ring, the outer side wall of the circular scraper blade is fixedly provided with an annular metal plate, the installation axle is kept away from the one end dismantlement of mounting panel and is installed cable junction spare, equal movable mounting has a plurality of third balls on the lateral wall on the roof of installation axle and top.
Preferably, the activity is inserted on the lateral wall of installation axle bottom and is equipped with a plurality of movable rods, and the second ball all rotates to be installed in the movable rod one end of keeping away from the installation axle, every all around being equipped with the spring on the lateral wall of movable rod, and the both ends of spring respectively fixed mounting on movable rod and installation axle.
Preferably, the one end of installation piece is inserted and is established on the mounting panel, set up the notch of mutually supporting with the installation piece on the lateral wall of mounting panel, fixed mounting has the threaded rod on the lateral wall of installation piece one end, and the one end of threaded rod runs through the lateral wall of mounting panel one side and extends to the outside of mounting panel, set up the movable groove of mutually supporting with the threaded rod on the lateral wall of mounting panel, threaded connection has fastening nut on the threaded rod, and fastening nut's diameter is greater than the width in movable groove.
Preferably, the outer side wall of one side of the circular scraper is fixedly provided with a connecting screw rod, one end of the mounting block, which is far away from the mounting plate, is provided with a threaded hole which is meshed with the connecting screw rod, and the connecting screw rod is connected in the threaded hole.
Preferably, an annular pushing plate is fixedly mounted on the outer side wall of one side, away from the mounting shaft, of the annular metal plate, and top walls, close to one side of the circular scraper blade, of the annular pushing plate are inclined planes.
Preferably, the two ends of the cable connecting piece are fixedly provided with a connecting plate together, a plurality of fastening screws are uniformly inserted on the outer side wall of one side of the connecting plate, and the fastening screws penetrate through the connecting plate and are in threaded connection with the mounting shaft.
Preferably, all fixed inserting is equipped with the female pole of a plurality of telescopic links on the lateral wall on the roof of installation axle and top, every the equal activity of one end of the female pole of telescopic link of keeping away from the installation axle is inserted and is equipped with the sub-pole of telescopic link, and the third ball all rotates and installs the one end of keeping away from the female pole of telescopic link at the sub-pole of telescopic link, every equal threaded connection has the fastening bolt who mutually supports with the sub-pole of telescopic link on the lateral wall that the female pole of telescopic link is close to sub-pole one end.
Preferably, two adjacent equal fixedly connected with connecting rod between the sub-pole of telescopic link, and the equal fixed mounting of connecting rod is on the lateral wall that the sub-pole of telescopic link kept away from the female pole one end of telescopic link.
Preferably, the mounting shaft, the mounting plate, the mounting block and the circular scraper are all made of stainless steel materials.
Compared with the prior art, the invention has the following beneficial effects:
1. the circular scraper with proper size can be installed on the installation block according to the inner diameter of the power cable pipeline, and the telescopic rod sub-rod and the third ball are moved to proper positions to be fixed, so that the power cable pipeline installation device can be suitable for power cable pipelines with different sizes, and is wide in application range and good in practical effect;
2. the circular scraper blade that will mutually support with the power cable pipeline inside wall is installed at the front end of installation axle to can clear away the debris of piling up in the power cable pipeline completely, not only can avoid debris to obstruct the roll of ball, also can avoid the cable by debris scratch, reasonable in design.
Drawings
FIG. 1 is a cross-sectional side view of an auxiliary drawing head of a cylindrical adjustable power cable threader according to the present invention;
FIG. 2 is a schematic front view of an auxiliary drawing head of the tubular adjustable power cable threader according to the present invention;
FIG. 3 is a schematic front view of a circular scraper portion of an auxiliary drawing head of a cylindrical adjustable power cable threader according to the present invention;
FIG. 4 is an enlarged view of a portion A of the auxiliary drawing head of the barrel-shaped adjustable power cable threader according to the present invention;
fig. 5 is an enlarged view of a portion B of the auxiliary pulling head of the tubular adjustable power cable threader according to the present invention.
In the figure: the device comprises a 1 mounting shaft, a 2 first ball, a 3 second ball, a 4 movable rod, a 5 spring, a 6 mounting plate, a 7 mounting block, an 8 threaded rod, a 9 movable groove, a 10 fastening nut, a 11 circular scraper blade, a 12 connecting screw rod, a 13 connecting ring, a 14 traction line, a 15 connecting buckle, a 16 annular metal plate, a 17 annular material pushing plate, an 18 cable connecting piece, a 19 connecting plate, a 20 fastening screw, a 21 third ball, a 22 telescopic rod female rod, a 23 telescopic rod sub-rod, a 24 fastening bolt and a 25 connecting rod.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-5, an auxiliary drawing head for a cylindrical adjustable power cable threader comprises an installation shaft 1, a plurality of first balls 2 are rotatably installed on the bottom wall of the installation shaft 1 to reduce the friction force between the installation shaft 1 and the inner side wall of a power cable pipeline, a plurality of second balls 3 are movably installed on the outer side wall of the bottom end of the installation shaft 1, the second balls 3 are respectively located at two sides of the first balls 2, a plurality of movable rods 4 are movably inserted on the outer side wall of the bottom end of the installation shaft 1, the second balls 3 are rotatably installed at one ends of the movable rods 4 far away from the installation shaft 1, a spring 5 is wound on the outer side wall of each movable rod 4, two ends of the spring 5 are respectively and fixedly installed on the movable rods 4 and the installation shaft 1, the spring 5 can push the movable rods 4 to move and enable the second balls 3 to be in contact with the inner side wall of, the stability of installation axle 1 removal has been promoted.
Install the one end fixed mounting of axle 1 and have mounting panel 6, movable mounting has installation piece 7 on mounting panel 6, the one end of installation piece 7 is inserted and is established on mounting panel 6, set up the notch of mutually supporting with installation piece 7 on mounting panel 6's the lateral wall, fixed mounting has threaded rod 8 on the lateral wall of installation piece 7 one end, and the one end of threaded rod 8 runs through the lateral wall of mounting panel 6 one side and extends to mounting panel 6's the outside, set up the movable groove 9 of mutually supporting with threaded rod 8 on mounting panel 6's the lateral wall, threaded rod 8 goes up threaded connection has fastening nut 10, and fastening nut 10's diameter is greater than the width of movable groove 9, can be convenient reciprocate installation piece 7 and will install that piece 7 is fixed.
The one end that mounting panel 6 was kept away from to installation piece 7 is dismantled and is installed circular scraper blade 11, fixed mounting has connecting screw 12 on the lateral wall of circular scraper blade 11 one side, the one end that mounting panel 6 was kept away from to installation piece 7 is seted up with connecting screw 12 intermeshing's screw hole, and connecting screw 12 connects in the screw hole, can be convenient install the dismantlement to circular scraper blade 11, thereby can install the circular scraper blade 11 of suitable size on installation piece 7 according to power cable pipeline's internal diameter, can be applicable to not unidimensional power cable pipeline and use, wide application scope, good in use effect.
Fixed mounting has go-between 13 on the lateral wall of circular scraper blade 11 far away from installation piece 7 one side, be connected with pull wire 14 on the go-between 13, fixed mounting has connector link 15 of mutually supporting with go-between 13 on the pull wire 14, can be convenient be connected to on the circular scraper blade 11 with pull wire 14, fixed mounting has annular metal sheet 16 on the lateral wall of circular scraper blade 11, the circular scraper blade 11 of removal that can be convenient, fixed mounting has annular scraping wings 17 on the lateral wall of installation axle 1 one side is kept away from to annular metal sheet 16, and the roof that annular scraping wings 17 is close to circular scraper blade 11 one side is the inclined plane, can prevent that the inboard debris of power cable pipeline from getting into between annular metal sheet 16 and the power cable pipeline inside wall.
The one end that installation axle 1 kept away from mounting panel 6 is dismantled and is installed cable junction spare 18, and the common fixed mounting in both ends of cable junction spare 18 has connecting plate 19, evenly inserts on the lateral wall of connecting plate 19 one side and is equipped with a plurality of fastening screw 20, and fastening screw 20 all runs through connecting plate 19 and threaded connection on installation axle 1, and what can be convenient installs the dismantlement to cable junction spare 18.
Install all movable mounting on the lateral wall on the roof of axle 1 and top and have a plurality of third ball 21, all fixed inserting is equipped with the female pole 22 of a plurality of telescopic links on the lateral wall on the roof of installation axle 1 and top, every female pole 22 of telescopic link keeps away from the equal activity of the one end of installation axle 1 and inserts and be equipped with the sub-pole 23 of telescopic link, and third ball 21 all rotates and installs the one end of keeping away from the female pole 22 of telescopic link at the sub-pole 23 of telescopic link, every female pole 22 of telescopic link is close to equal threaded connection have with the sub-pole 23 of telescopic link fastening bolt 24 of mutually supporting on the lateral wall of the sub-pole 23 one end of telescopic link, can be according to convenient the removal of the sub-pole 23 of telescopic link and third ball 21 to suitable.
Equal fixedly connected with connecting rod 25 between two adjacent sub-poles 23 of telescopic link, and the equal fixed mounting of connecting rod 25 is on the lateral wall that the female pole 22 one end of telescopic link was kept away from to the sub-pole 23 of telescopic link, removes adjacent sub-pole 23 of a plurality of telescopic links and third ball 21 when connecting rod 25 just can be convenient, convenient operation.
According to the invention, a circular scraper blade 11 with a proper size is selected according to the size of the inner diameter of the power cable pipeline, an installation block 7 is moved to a proper position and is tightly fixed by a nut 10 to fix a threaded rod 8 and the installation block 7, then the circular scraper blade 11 is installed on the installation block 7 by using a connecting screw 12, a movable connecting rod 25 drives a telescopic rod 23 and a third ball 21 to move and enables the third ball 21 to be contacted with the inner side wall of the power cable pipeline, then the telescopic rod 23 and the third ball 21 are fixed by rotating a fastening bolt 24, a traction wire 14 is connected to a connecting ring 13 and the circular scraper blade 11 by using a connecting buckle 15, a power cable is connected to a cable connecting piece 18, and the circular scraper blade 11, an installation shaft 1 and the power cable can be dragged to move by using the.
Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 supplementary drawing head of power cable threading apparatus with adjustable tube-shape, includes installation axle (1), its characterized in that: the mounting device is characterized in that a plurality of first balls (2) are rotatably mounted on the bottom wall of the mounting shaft (1), a plurality of second balls (3) are movably mounted on the outer side wall of the bottom end of the mounting shaft (1), the second balls (3) are respectively positioned on two sides of the first balls (2), a mounting plate (6) is fixedly mounted at one end of the mounting shaft (1), a mounting block (7) is movably mounted on the mounting plate (6), a circular scraper blade (11) is demounted and mounted at one end, far away from the mounting plate (6), of the mounting block (7) by the mounting block (7), a connecting ring (13) is fixedly mounted on the outer side wall, far away from one side of the mounting block (7), a traction line (14) is connected onto the connecting ring (13), a connecting buckle (15) matched with the connecting ring (13) is fixedly mounted on the traction line (14), and an annular metal plate (16) is fixedly, a cable connecting piece (18) is detachably mounted at one end, far away from the mounting plate (6), of the mounting shaft (1), and a plurality of third balls (21) are movably mounted on the outer side walls of the top wall and the top end of the mounting shaft (1);
the one end of installation piece (7) is inserted and is established on mounting panel (6), set up the notch of mutually supporting with installation piece (7) on the lateral wall of mounting panel (6), fixed mounting has threaded rod (8) on the lateral wall of installation piece (7) one end, and the one end of threaded rod (8) runs through the lateral wall of mounting panel (6) one side and extends to the outside of mounting panel (6), set up movable groove (9) of mutually supporting with threaded rod (8) on the lateral wall of mounting panel (6), threaded connection has fastening nut (10) on threaded rod (8), and the diameter of fastening nut (10) is greater than the width of movable groove (9).
2. The auxiliary drawing head of the cylindrical adjustable power cable threader as claimed in claim 1, wherein: the installation axle is equipped with a plurality of movable rods (4) on the activity is inserted on the lateral wall of installation axle (1) bottom, and second ball (3) all rotate and install the one end of keeping away from installation axle (1) at movable rod (4), every all around being equipped with spring (5) on the lateral wall of movable rod (4), and the both ends difference fixed mounting of spring (5) is on movable rod (4) and installation axle (1).
3. The auxiliary drawing head of the cylindrical adjustable power cable threader as claimed in claim 1, wherein: the mounting structure is characterized in that a connecting screw rod (12) is fixedly mounted on the outer side wall of one side of the circular scraper (11), one end, away from the mounting plate (6), of the mounting block (7) is provided with a threaded hole meshed with the connecting screw rod (12), and the connecting screw rod (12) is connected in the threaded hole.
4. The auxiliary drawing head of the cylindrical adjustable power cable threader as claimed in claim 3, wherein: an annular material pushing plate (17) is fixedly mounted on the outer side wall of one side, away from the mounting shaft (1), of the annular metal plate (16), and the top wall of one side, close to the circular scraper blade (11), of the annular material pushing plate (17) is an inclined plane.
5. The auxiliary drawing head of the cylindrical adjustable power cable threader as claimed in claim 1, wherein: the cable connecting piece is characterized in that connecting plates (19) are fixedly mounted at two ends of the cable connecting piece (18) together, a plurality of fastening screws (20) are uniformly inserted into the outer side wall of one side of the connecting plates (19), and the fastening screws (20) penetrate through the connecting plates (19) and are in threaded connection with the mounting shaft (1).
6. The auxiliary drawing head of the cylindrical adjustable power cable threader as claimed in claim 1, wherein: all fixed inserting is equipped with female pole (22) of a plurality of telescopic links, every on the lateral wall on the roof of installation axle (1) and top the equal activity of one end of keeping away from installation axle (1) of female pole (22) of telescopic link is inserted and is equipped with sub-pole (23) of telescopic link, and third ball (21) all rotates and install the one end of keeping away from female pole (22) of telescopic link in sub-pole (23) of telescopic link, every equal threaded connection has fastening bolt (24) of mutually supporting with sub-pole (23) of telescopic link on the lateral wall that female pole (22) of telescopic link is close to sub-pole (23) one end of telescopic link.
7. The auxiliary drawing head of the cylindrical adjustable power cable threader as claimed in claim 6, wherein: two adjacent equal fixedly connected with connecting rod (25) between sub-pole (23) of telescopic link, and the equal fixed mounting of connecting rod (25) is kept away from on the lateral wall of the female pole (22) one end of telescopic link in sub-pole (23) of telescopic link.
8. The auxiliary drawing head of the cylindrical adjustable power cable threader as claimed in claim 1, wherein: the installation shaft (1), the installation plate (6), the installation block (7) and the circular scraper blade (11) are all made of stainless steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911287387.2A CN110912030B (en) | 2019-12-14 | 2019-12-14 | Cylindrical adjustable auxiliary traction head for power cable threading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911287387.2A CN110912030B (en) | 2019-12-14 | 2019-12-14 | Cylindrical adjustable auxiliary traction head for power cable threading device |
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| CN110912030A CN110912030A (en) | 2020-03-24 |
| CN110912030B true CN110912030B (en) | 2021-01-05 |
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| CN201911287387.2A Active CN110912030B (en) | 2019-12-14 | 2019-12-14 | Cylindrical adjustable auxiliary traction head for power cable threading device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3158797B2 (en) * | 1993-07-29 | 2001-04-23 | 松下電器産業株式会社 | Exhaust gas purification method and exhaust gas purification apparatus using the same |
| BRPI0622018B1 (en) * | 2006-09-26 | 2019-04-09 | Prysmian Australia Pty Ltd | TRACTION COVER FOR TRADING AN OPTICAL FIBER CABLE ALONG A CONDUCT AND METHOD FOR TRACING AN OPTICAL FIBER CABLE ALONG A CONDUCT |
| KR20100006596A (en) * | 2008-07-10 | 2010-01-21 | (주) 나우엔지니어링 | Pulling eye for extracting power line |
| CN203607757U (en) * | 2013-12-18 | 2014-05-21 | 国家电网公司 | Rolling type cylindrical auxiliary drawing head of power cable threading apparatus |
| CN203596560U (en) * | 2013-12-18 | 2014-05-14 | 国家电网公司 | Cylindrical adjustable power cable threading apparatus auxiliary drawing head |
| CN204651800U (en) * | 2015-06-12 | 2015-09-16 | 国网四川省电力公司资阳供电公司 | For the auxiliary hitch of cabling |
| CN106058741B (en) * | 2016-07-27 | 2017-09-12 | 国网山东省电力公司昌乐县供电公司 | Cable pipe draws cavity clearing device |
| CN106374395B (en) * | 2016-10-13 | 2019-02-15 | 山东钢铁股份有限公司 | A kind of penetration pipe cable traction device and cable pipe laying method |
| KR200488389Y1 (en) * | 2017-04-03 | 2019-01-23 | 김성환 | Wire fixing unit for wire follower |
| CN107086502B (en) * | 2017-06-24 | 2019-02-15 | 南京市龙马通信工程有限公司 | A kind of communication pipe lead distributor |
| CN207021599U (en) * | 2017-08-07 | 2018-02-16 | 江西应用技术职业学院 | A kind of device for conduit threading in pipe |
| CN107453282B (en) * | 2017-08-08 | 2018-09-21 | 合肥安力电力工程有限公司 | One kind being used for cable pipe auxiliary device |
| CN209448340U (en) * | 2018-12-19 | 2019-09-27 | 时若魁 | A kind of building electric engineering threading constructing device |
| CN209545031U (en) * | 2019-05-17 | 2019-10-25 | 吴明强 | A kind of cable penetration steel pipe protective device |
| CN110429518A (en) * | 2019-07-19 | 2019-11-08 | 河南中烟工业有限责任公司 | A kind of cable protection cable installation in pipe device |
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Inventor after: Xiong Li Inventor after: Xiang Xingyao Inventor after: Zhang Ping Inventor after: Yang Juntao Inventor after: Zeng Linjun Inventor after: Wang Dan Inventor after: Cheng Li Inventor after: Li Xin Inventor after: Xue Li Inventor before: Xue Li |
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Effective date of registration: 20201208 Address after: 442005 No.79 Renmin South Road, Maojian District, Shiyan City, Hubei Province Applicant after: SHIYAN POWER SUPPLY COMPANY OF STATE GRID HUBEI ELECTRIC POWER Co.,Ltd. Address before: 200030 Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai, Xuhui District Applicant before: Xue Li |
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