CN112670901A - Cable erecting device for electric power construction and construction method thereof - Google Patents

Cable erecting device for electric power construction and construction method thereof Download PDF

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Publication number
CN112670901A
CN112670901A CN202011483582.5A CN202011483582A CN112670901A CN 112670901 A CN112670901 A CN 112670901A CN 202011483582 A CN202011483582 A CN 202011483582A CN 112670901 A CN112670901 A CN 112670901A
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CN
China
Prior art keywords
cable
plate
power construction
bottom plate
screws
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.)
Pending
Application number
CN202011483582.5A
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Chinese (zh)
Inventor
刘佳佟
安重霖
方朔
郭玉新
董轶
苏楠
王彦婷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Shandong Electric Power Co Construction Co
State Grid Corp of China SGCC
Original Assignee
State Grid Shandong Electric Power Co Construction Co
State Grid Corp of China SGCC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Shandong Electric Power Co Construction Co, State Grid Corp of China SGCC filed Critical State Grid Shandong Electric Power Co Construction Co
Priority to CN202011483582.5A priority Critical patent/CN112670901A/en
Publication of CN112670901A publication Critical patent/CN112670901A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a cable erecting device for power construction and a construction method thereof. Has the advantages that: according to the invention, by arranging the camera and the display screen, in the lifting process, the camera can shoot the picture at the pulley and transmit the shot picture to the display screen for display, and a worker can better operate the device by watching the display screen so as to enable the pulley to be in a proper position, and an interphone and a manual command cry out are not needed, so that the practicability of the device is improved.

Description

Cable erecting device for electric power construction and construction method thereof
Technical Field
The invention relates to the technical field of cable erection devices, in particular to a cable erection device for power construction and a construction method thereof.
Background
The cable laying refers to a process of laying and installing cables along the checked route to form a cable line. According to the use occasion, the method can be divided into a plurality of laying modes such as overhead, underground (pipelines and direct burial), underwater, walls, tunnels and the like. The reasonable selection of the laying mode of the cable is very important for ensuring the transmission quality, reliability, construction maintenance and the like of the line.
However, the conventional cable erecting device for power construction needs to cry out manually or use an interphone to lift the cable to a proper position of the power tower during the use process, and the transmission mode has more restriction factors, thus reducing the practicability of the device, secondly, the existing cable erecting device for power construction is influenced by the span of the cable and the self gravity in the process of laying the cable, further, it is inconvenient to manually pull the cable, increasing the fatigue degree of workers, and reducing the functionality of the device, and in addition, the existing cable erecting device for electric power construction needs to change the position of the device as a whole when the laying angle needs to be adjusted, and since the mechanism of the device itself is large, and then be not convenient for adjust, lead to the adjustment time overlength, reduce the efficiency of laying of device, consequently urgently need a cable handing equipment for electric power construction to solve current problem.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a cable installation device for power construction and a construction method thereof.
The invention realizes the purpose through the following technical scheme:
a cable erecting device for electric power construction comprises a bottom plate, a connecting shaft, a connecting hole and a connecting pin, wherein the connecting shaft is arranged on one side wall of the bottom plate, the connecting hole is formed in the connecting shaft, the connecting pin is arranged in the connecting hole, a roller is arranged at the bottom end of the bottom plate, a second motor is arranged in the bottom plate, a turntable is arranged at the upper end of the bottom plate, a supporting plate is arranged in the middle of the upper end of the turntable, a cable tray is arranged between the supporting plates, a cable is wound on the cable tray, a first motor is arranged on one side wall of the supporting plate, a supporting column is arranged on one side of the supporting plate, a first hydraulic rod is arranged at the upper end of the supporting column, a connecting plate is arranged at one end of the first hydraulic rod, a pulley, the rotary table is characterized in that a rotating shaft is arranged in the connecting seat, a hydraulic rod II is arranged on the side wall of the rotating shaft, an electric push rod is arranged on the other side of the supporting plate, a supporting ring is arranged at the top end of the electric push rod, a guide cylinder is arranged in the supporting ring, a support is arranged on one side of the rotary table, an operation panel is arranged at the upper end of the support, and a display screen is arranged on the operation panel.
Furthermore, the connecting shaft is welded with the bottom plate, the connecting hole is formed in the connecting shaft, the connecting pin is inserted into the connecting hole, and the roller is connected with the bottom plate through a screw.
Through the technical scheme, the connecting shaft is convenient for connecting the device with the power equipment, the connecting pin is combined with the connecting hole, the connecting position can be fixed, and the power equipment drives the roller to rotate so as to move the device to the working position.
Furthermore, the motor II is connected with the bottom plate through a screw, the turntable is rotationally connected with the bottom plate, and the motor II is connected with the turntable key.
Through the technical scheme, when the laying angle is required to be adjusted, the motor II drives the rotary table to rotate, so that the rotary table drives the whole laying mechanism to rotate, the laying angle can be adjusted without changing the position of the device, and the laying efficiency of the device is further ensured.
Further, the backup pad with the carousel passes through bolted connection, the cable drum with the backup pad is rotated and is connected, motor one with the backup pad passes through screwed connection, motor one with the cable drum key-type connection.
Through the technical scheme, the motor drives the cable reel to rotate, and then the cable is released.
Furthermore, the supporting column is connected with the rotary table through a bolt, and the first hydraulic rod is connected with the supporting column in a rotating mode.
Through the technical scheme, the first hydraulic rod lifts the cable to the electric tower.
Furthermore, the connecting plate is connected with the first hydraulic rod through a screw, the pulley is rotatably connected with the connecting plate, and the camera is connected with the connecting plate through a screw.
Through the technical scheme, the pulley can guide the movement of the cable, and the camera records the picture at the pulley.
Furthermore, the connecting seat with the support column passes through screwed connection, the pivot with the connecting seat rotates to be connected, hydraulic stem two with the pivot and hydraulic stem one all passes through screwed connection.
Through the technical scheme, the second hydraulic rod can push the first hydraulic rod to rotate, so that the first hydraulic rod is supported on one hand, and the span of the first hydraulic rod is increased on the other hand.
Furthermore, the electric push rod is connected with the turntable through a screw, the support ring is connected with the electric push rod through a screw, and the guide cylinder is rotationally connected with the support ring.
Through above-mentioned technical scheme the cable laying in-process, electric putter promotes the support ring rebound, and then makes the guide cylinder is right the middle part of cable is supported, avoids because of the cable span is too big and the cable receives the factor of self gravity and leads to the cable is not convenient for stimulate, alleviates staff's tired degree.
Furthermore, the support is connected with the bottom plate through screws, the operating panel is connected with the support through screws, and the display screen is connected with the operating panel through a clamping groove.
Through the technical scheme, the operation panel controls the operation of the device, and the display screen displays the camera shooting picture of the camera.
The invention has the beneficial effects that:
1. in order to solve the problems that the existing cable erecting device for power construction needs to cry out manually or an interphone needs to be used for lifting a cable to a proper position of a power tower, and the conveying mode has more restriction factors, so that the practicability of the device is reduced, the invention arranges the camera and the display screen, the camera can shoot pictures at the pulley and transmit the shot pictures to the display screen for display in the lifting process, and a worker can better operate the device by watching the display screen, so that the pulley is in a proper position, the interphone and the artificial command cry out are not needed, so that the practicability of the device is improved;
2. in order to solve the problems that the existing cable erecting device for power construction is influenced by the span of a cable and the self gravity in the process of laying the cable, so that the cable is not conveniently pulled manually, the fatigue degree of workers is increased, and the functionality of the device is reduced, the invention arranges the electric push rod, the support ring and the guide cylinder, so that the electric push rod pushes the support ring to move upwards in the process of laying the cable, the guide cylinder supports the middle part of the cable, the inconvenience of pulling the cable due to the fact that the cable has too large span and the cable is influenced by the self gravity is avoided, the fatigue degree of the workers is reduced, and the functionality of the device is improved;
3. in order to solve the problems that the position of the integral device needs to be changed when the laying angle needs to be adjusted, and the device is inconvenient to adjust due to the fact that the mechanism of the device is large, the adjusting time is too long, and the laying efficiency of the device is reduced, the cable erecting device for electric power construction is simple in operation process, time is saved, and the laying efficiency of the device is improved.
Drawings
Fig. 1 is a front view of a cable erecting device for electric power construction according to the present invention;
FIG. 2 is a sectional view of a connecting shaft of the cable erecting device for electric power construction according to the present invention;
FIG. 3 is a right side view of a support ring of the cable erecting device for power construction according to the present invention;
fig. 4 is a sectional view of a bottom plate of the cable erecting device for power construction according to the present invention.
The reference numerals are explained below:
1. a support; 2. a connecting shaft; 3. a connecting pin; 4. an operation panel; 5. a display screen; 6. a connecting seat; 7. a support pillar; 8. a second hydraulic rod; 9. a first hydraulic rod; 10. a cable; 11. a connecting plate; 12. a camera; 13. a pulley; 14. a support ring; 15. a cable reel; 16. a first motor; 17. an electric push rod; 18. a turntable; 19. a roller; 20. a support plate; 21. a base plate; 22. a rotating shaft; 23. connecting holes; 24. a guide cylinder; 25. and a second motor.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1-4, a cable erecting device for electric power construction comprises a bottom plate 21, a connecting shaft 2, a connecting hole 23 and a connecting pin 3, wherein the connecting shaft 2 is arranged on one side wall of the bottom plate 21, the connecting hole 23 is arranged on the connecting shaft 2, the connecting pin 3 is arranged in the connecting hole 23, a roller 19 is arranged at the bottom end of the bottom plate 21, a second motor 25 is arranged in the bottom plate 21, a turntable 18 is arranged at the upper end of the bottom plate 21, a supporting plate 20 is arranged in the middle of the upper end of the turntable 18, a cable reel 15 is arranged between the supporting plates 20, a cable 10 is wound on the cable reel 15, a first motor 16 is arranged on one side wall of the supporting plate 20, a supporting column 7 is arranged on one side of the supporting plate 20, a first hydraulic rod 9 is arranged at the upper end of the, the utility model discloses a portable electronic device, including connecting plate 11, connecting plate, supporting column 7, pivot 22, hydraulic stem two 8, backup pad 20, electric putter 17, support ring 14, be provided with guide cylinder 24 in the support ring 14, carousel 18 one side is provided with support 1, 1 upper end of support is provided with operating panel 4, be provided with display screen 5 on the operating panel 4, be provided with connecting seat 6 on the 7 lateral walls of support column, be provided with pivot 22 in the connecting seat 6, be provided with hydraulic stem two 8 on the 22 lateral walls of pivot, 20 opposite sides of backup pad are provided with electric putter 17, 17 tops of electric putter are provided with the support ring.
In this embodiment, the connecting shaft 2 and the bottom plate 21 are welded, the connecting hole 23 is formed in the connecting shaft 2, the connecting pin 3 is inserted into the connecting hole 23, the roller 19 is connected with the bottom plate 21 through a screw, the connecting shaft 2 is convenient for connecting the device with power equipment, the connecting pin 3 is combined with the connecting hole 23, the joint can be fixed, and the power equipment drives the roller 19 to rotate so as to move the device to a working position.
In this embodiment, the second motor 25 and the bottom plate 21 are connected through screws, the turntable 18 and the bottom plate 21 are connected in a rotating mode, the second motor 25 is connected with the turntable 18 in a key mode, when the laying angle needs to be adjusted, the second motor 25 drives the turntable 18 to rotate, and then the turntable 18 drives the whole laying mechanism to rotate, the laying angle can be adjusted without changing the position of the device, and the laying efficiency of the device is guaranteed.
In this embodiment, the supporting plate 20 is connected to the rotating plate 18 through a bolt, the cable drum 15 is rotatably connected to the supporting plate 20, the first motor 16 is connected to the supporting plate 20 through a screw, the first motor 16 is connected to the cable drum 15 through a key, and the first motor 16 drives the cable drum 15 to rotate, so that the cable 10 is released.
In this embodiment, the supporting column 7 is connected to the turntable 18 through a bolt, the first hydraulic rod 9 is rotatably connected to the supporting column 7, and the first hydraulic rod 9 lifts the cable 10 to a power tower.
In this embodiment, the connecting seat 6 is connected to the supporting pillar 7 by a screw, the rotating shaft 22 is rotatably connected to the connecting seat 6, the second hydraulic rod 8 is connected to the rotating shaft 22 and the first hydraulic rod 9 by screws, the second hydraulic rod 8 can push the first hydraulic rod 9 to rotate, so as to support the first hydraulic rod 9 on one hand and increase the span of the first hydraulic rod 9 on the other hand.
In this embodiment, the connecting plate 11 is connected to the first hydraulic rod 9 by screws, the pulley 13 is rotatably connected to the connecting plate 11, the camera 12 is connected to the connecting plate 11 by screws, the pulley 13 can guide the movement of the cable 10, and the camera 12 records a picture on the pulley 13.
In this embodiment, the electric push rod 17 is connected to the rotary table 18 through a screw, the support ring 14 is connected to the electric push rod 17 through a screw, the guide cylinder 24 is connected to the support ring 14 in a rotating manner, in the laying process of the cable 10, the electric push rod 17 pushes the support ring 14 to move upwards, so that the guide cylinder 24 supports the middle of the cable 10, the inconvenience of pulling the cable 10 due to the fact that the span of the cable 10 is too large and the cable 10 is subjected to the self-gravity is avoided, and the fatigue degree of workers is reduced.
In this embodiment, the support 1 is connected to the bottom plate 21 through screws, the operating panel 4 is connected to the support 1 through screws, the display screen 5 is connected to the operating panel 4 through a clamping groove, the operating panel 4 controls the operation of the device, and the display screen 5 displays a camera image of the camera 12.
A use method of a cable 10 erection device for power construction comprises the following steps: firstly, the device is connected with external power equipment through the connecting shaft 2, the connecting pin 3 is combined with the connecting hole 23 to fix the connecting position, then the power equipment drives the roller 19 to rotate, the device is moved to a working position, then one end of the cable 10 is fixed on the pulley 13, the device is operated through the operation panel 4, at the moment, the first motor 16 drives the cable reel 15 to rotate, the cable 10 is further released, the first hydraulic rod 9 is combined with the second hydraulic rod 8 to lift the cable 10 to an electric tower, in the lifting process, the camera 12 can take a picture of the pulley 13 and transmit the taken picture to the display screen 5 to be displayed, and a worker can better operate the device by watching the display screen 5 to further enable the pulley 13 to be in a proper position, then begin to lay cable 10, pulley 13 can be right cable 10 leads, and electric putter 17 promotes support ring 14 moves upwards, and then makes guide cylinder 24 supports the middle part of cable 10, avoids because cable 10 span is too big and cable 10 receives the factor of self gravity and leads to cable 10 is not convenient for the pulling, alleviates staff's tired degree, when needs are to laying the angular adjustment, motor two 25 drives carousel 18 rotates, and then makes carousel 18 drive whole laying mechanism and rotate, need not to change the position of device alright adjust the angle of laying, and then guarantees the efficiency of laying of device.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides a cable handing equipment for electric power construction which characterized in that: the cable tray comprises a bottom plate (21), a connecting shaft (2), connecting holes (23) and connecting pins (3), wherein the connecting shaft (2) is arranged on one side wall of the bottom plate (21), the connecting holes (23) are formed in the connecting shaft (2), the connecting pins (3) are arranged in the connecting holes (23), idler wheels (19) are arranged at the bottom end of the bottom plate (21), a second motor (25) is arranged in the bottom plate (21), a rotary disc (18) is arranged at the upper end of the bottom plate (21), a supporting plate (20) is arranged in the middle of the upper end of the rotary disc (18), a cable tray (15) is arranged between the supporting plates (20), a cable (10) is wound on the cable tray (15), a first motor (16) is arranged on one side wall of the supporting plate (20), a supporting column (7) is arranged on one side of the supporting plate (20), one end of the first hydraulic rod (9) is provided with a connecting plate (11), the bottom end of the connecting plate (11) is provided with a pulley (13), a camera (12) is arranged on one side wall of the connecting plate (11), a connecting seat (6) is arranged on one side wall of the supporting column (7), a rotating shaft (22) is arranged in the connecting seat (6), a second hydraulic rod (8) is arranged on one side wall of the rotating shaft (22), the other side of the supporting plate (20) is provided with an electric push rod (17), the top end of the electric push rod (17) is provided with a supporting ring (14), a guide cylinder (24) is arranged in the supporting ring (14), one side of the turntable (18) is provided with a support (1), the upper end of the support (1) is provided with an operating panel (4).
2. The cable erecting device for electric power construction as recited in claim 1, wherein: the connecting shaft (2) is welded with the bottom plate (21), the connecting hole (23) is formed in the connecting shaft (2), the connecting pin (3) is connected with the connecting hole (23) in an inserting mode, and the roller (19) is connected with the bottom plate (21) through a screw.
3. The cable erecting device for electric power construction as recited in claim 1, wherein: the second motor (25) is connected with the bottom plate (21) through screws, the rotary disc (18) is rotationally connected with the bottom plate (21), and the second motor (25) is connected with the rotary disc (18) in a key mode.
4. The cable erecting device for electric power construction as recited in claim 1, wherein: the supporting plate (20) is connected with the rotary plate (18) through bolts, the cable reel (15) is connected with the supporting plate (20) in a rotating mode, the motor I (16) is connected with the supporting plate (20) through screws, and the motor I (16) is connected with the cable reel (15) in a key mode.
5. The cable erecting device for electric power construction as recited in claim 1, wherein: the supporting column (7) is connected with the rotary table (18) through bolts, and the first hydraulic rod (9) is rotationally connected with the supporting column (7).
6. The cable erecting device for electric power construction as recited in claim 1, wherein: the connecting plate (11) is connected with the first hydraulic rod (9) through screws, the pulley (13) is rotatably connected with the connecting plate (11), and the camera (12) is connected with the connecting plate (11) through screws.
7. The cable erecting device for electric power construction as recited in claim 1, wherein: the connecting seat (6) is connected with the supporting column (7) through screws, the rotating shaft (22) is connected with the connecting seat (6) in a rotating mode, and the second hydraulic rod (8) is connected with the rotating shaft (22) and the first hydraulic rod (9) through screws.
8. The cable erecting device for electric power construction as recited in claim 1, wherein: the electric push rod (17) is connected with the rotary disc (18) through screws, the support ring (14) is connected with the electric push rod (17) through screws, and the guide cylinder (24) is rotationally connected with the support ring (14).
9. The cable erecting device for electric power construction as recited in claim 1, wherein: the support (1) is connected with the bottom plate (21) through screws, the operation panel (4) is connected with the support (1) through screws, and the display screen (5) is connected with the operation panel (4) through a clamping groove.
10. A method for using a cable erection device for power construction, applied to the cable erection device (10) for power construction of any one of claims 1 to 9, characterized in that: firstly, the device is connected with external power equipment through the connecting shaft (2), the connecting pin (3) is combined with the connecting hole (23) to fix the connection position, then the power equipment drives the roller (19) to rotate, the device is moved to a working position, then one end of the cable (10) is fixed on the pulley (13), the device is operated through the operation panel (4), at the moment, the first motor (16) drives the cable reel (15) to rotate, the cable (10) is released, the first hydraulic rod (9) is combined with the second hydraulic rod (8) to lift the cable (10) to an electric tower, and in the lifting process, the camera (12) can take pictures of the pulley (13) and transmit the pictures to the display screen (5) to be displayed, the worker can better operate the device by watching the display screen (5) to further enable the pulley (13) to be in a proper position and then begin to lay the cable (10), the pulley (13) can guide the cable (10), the electric push rod (17) pushes the support ring (14) to move upwards, the guide cylinder (24) further enables the middle of the cable (10) to be supported, the problem that the cable (10) is inconvenient to pull due to the fact that the cable (10) is too large in span and the cable (10) is subjected to the self gravity is avoided, the fatigue degree of the worker is reduced, when the laying angle needs to be adjusted, the second motor (25) drives the turntable (18) to rotate, the turntable (18) further drives the whole laying mechanism to rotate, and the laying angle can be adjusted without changing the position of the device, thereby ensuring the laying efficiency of the device.
CN202011483582.5A 2020-12-16 2020-12-16 Cable erecting device for electric power construction and construction method thereof Pending CN112670901A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011483582.5A CN112670901A (en) 2020-12-16 2020-12-16 Cable erecting device for electric power construction and construction method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011483582.5A CN112670901A (en) 2020-12-16 2020-12-16 Cable erecting device for electric power construction and construction method thereof

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Publication Number Publication Date
CN112670901A true CN112670901A (en) 2021-04-16

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Application Number Title Priority Date Filing Date
CN202011483582.5A Pending CN112670901A (en) 2020-12-16 2020-12-16 Cable erecting device for electric power construction and construction method thereof

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Country Link
CN (1) CN112670901A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113526245A (en) * 2021-06-03 2021-10-22 惠盟电力科技有限公司 Power cable pay-off device and use method thereof
CN114104853A (en) * 2021-10-31 2022-03-01 国网河南省电力公司中牟县供电公司 Power cable drainage device of high-voltage switch cabinet and construction method thereof
GB2611328A (en) * 2021-09-30 2023-04-05 British Telecomm Dispenser for telecommunications cables
CN117498229A (en) * 2023-11-14 2024-02-02 国网安徽省电力有限公司凤阳县供电公司 Laying mechanism for power cable construction

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1653046A1 (en) * 1988-01-05 1991-05-30 Грузинский политехнический институт Device for reeling-out of cable for installation in ground
CN1496890A (en) * 2002-10-17 2004-05-19 ��������������·��е��ҵ�ɷ����޹� Operating method and machinery for set-up overhead contact net wire
CN205676050U (en) * 2016-06-25 2016-11-09 衢州胜创自动化设备有限公司 A kind of hydraulic lifting apparatus for building
CN206225960U (en) * 2016-12-07 2017-06-06 中铁二十五局集团电务工程有限公司 A kind of mobile device for erecting cable
CN108439095A (en) * 2018-04-12 2018-08-24 姚福泉 A kind of efficient power cable conveying device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1653046A1 (en) * 1988-01-05 1991-05-30 Грузинский политехнический институт Device for reeling-out of cable for installation in ground
CN1496890A (en) * 2002-10-17 2004-05-19 ��������������·��е��ҵ�ɷ����޹� Operating method and machinery for set-up overhead contact net wire
CN205676050U (en) * 2016-06-25 2016-11-09 衢州胜创自动化设备有限公司 A kind of hydraulic lifting apparatus for building
CN206225960U (en) * 2016-12-07 2017-06-06 中铁二十五局集团电务工程有限公司 A kind of mobile device for erecting cable
CN108439095A (en) * 2018-04-12 2018-08-24 姚福泉 A kind of efficient power cable conveying device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113526245A (en) * 2021-06-03 2021-10-22 惠盟电力科技有限公司 Power cable pay-off device and use method thereof
GB2611328A (en) * 2021-09-30 2023-04-05 British Telecomm Dispenser for telecommunications cables
GB2611328B (en) * 2021-09-30 2023-12-20 British Telecomm Dispenser for telecommunications cables
CN114104853A (en) * 2021-10-31 2022-03-01 国网河南省电力公司中牟县供电公司 Power cable drainage device of high-voltage switch cabinet and construction method thereof
CN117498229A (en) * 2023-11-14 2024-02-02 国网安徽省电力有限公司凤阳县供电公司 Laying mechanism for power cable construction

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Application publication date: 20210416

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