Portable combined overhead lightning conductor lifting device

Abstract

The invention provides a portable combined type overhead lightning conductor lifting device, and relates to the technical field of electric power tools, the portable combined type overhead lightning conductor lifting device comprises an overhead cross arm clamping seat and a double-spiral lead screw, the double-spiral lead screw is installed at one end of the interior of the overhead cross arm clamping seat in a threaded mode, and a rotating handle is arranged at the upper end of the double-spiral lead screw; a wire lifting hook is rotationally arranged at the lower end of the double-helix lead screw; the overhead cross arm clamping seat and the overhead cross arm angle iron are installed for positioning, an overhead lightning conductor is hooked by the conductor lifting hook, and the rotating handle is operated to drive the double-spiral lead screw to rotate and lift so as to adjust the height of the conductor lifting hook. An operator on a tower can easily lift the overhead lightning conductor in a power transmission line, necessary preparation is made for various inspection and overhaul operations such as replacement of a wire clamp of the overhead lightning conductor, time and labor are saved, convenience, rapidness, safety and reliability are achieved, and professional maintenance and proofreading are not needed.

Description

Technical Field

[0001] The present invention relates to the technical field of electric tools, and particularly relates to a portable combined overhead lightning protection wire lifting device. Background Art

[0002] Overhead lightning protection wires are important safeguard measures to protect transmission lines from lightning strikes. Due to the long-term influence of harsh weather such as strong winds, thunderstorms, etc., under the action of strong winds, the overhead lightning protection wires swing and vibrate irregularly frequently. Over time, the fittings carrying the overhead lightning protection wires are severely worn. If not discovered and replaced in time, it will cause major accidents such as the fracture of the fittings, the shedding of the overhead lightning protection wires, and the discharge between the overhead lightning protection wires and the conductors. Therefore, it is necessary for professional operation and maintenance and repair personnel of the power transmission industry to frequently inspect and maintain the overhead lightning protection wires and their affiliated facilities; The existing tools for replacing the fittings of overhead lightning protection wires are bulky and the operation methods are complex and relatively backward. During the use process, the operators are time-consuming, laborious, and have a low safety factor. There is an urgent need for a tool that can improve the operation efficiency and ensure the operation safety. Therefore, the present invention proposes a new type of portable combined overhead lightning protection wire lifting device to solve the problems existing in the prior art. Summary of the Invention

[0003] In view of the above problems, the present invention proposes a portable combined overhead lightning protection wire lifting device. The new type of portable combined overhead lightning protection wire lifting device is positioned by installing an overhead cross-arm seat on the overhead cross-arm angle iron. The overhead lightning protection wire is hooked by a wire hook. By operating the rotating handle to drive the double screw rod to rotate and lift, the height of the wire hook is adjusted. Thus, during the overhaul operations such as replacing the clamp on the transmission line, the operators on the pole can easily complete the lifting of the overhead lightning protection wire in the transmission line, and make necessary preparations for various inspections and overhaul operations such as replacing the clamp of the overhead lightning protection wire.

[0004] To achieve the purpose of the present invention, the present invention is realized through the following technical solutions: A new type of portable combined overhead lightning protection wire lifting device, including an overhead cross-arm seat and a double screw rod. The double screw rod is threadedly installed at one end inside the overhead cross-arm seat, and a rotating handle is provided at the upper end of the double screw rod. A wire hook is rotatably provided at the lower end of the double screw rod; The overhead cross-arm seat is used to be installed on the overhead cross-arm angle iron at the hanging point of the overhead lightning protection wire of the transmission line. The double screw rod is used to rotate and lift to adjust the height of the wire hook. The wire hook is used to hook the overhead lightning protection wire.

[0005] Further improvement lies in that: The rotating handle includes a sleeve rod and an insertion rod, and the insertion rod is movably inserted inside the sleeve rod.

[0006] A further improvement lies in that: one end of the sleeve rod is provided with a sleeve block, and the sleeve block is sleeved on the upper end of the double screw rod, and the sleeve block and the double screw rod are fixed by fastening screws.

[0007] A further improvement lies in that: the outer sides of the sleeve rod and the insertion rod are both coated with insulating rubber layers.

[0008] A further improvement lies in that: the lower end of the double screw rod is connected with a suspension rod, and the suspension rod is integrally formed with the double screw rod. A universal swivel head is rotatably provided at the lower end of the suspension rod, and the wire hanger hook is arranged below the universal swivel head.

[0009] A further improvement lies in that: the wire hanger hook is made of insulating material, and the universal swivel head is a 360° rotatable alloy head.

[0010] A further improvement lies in that: the wire hanger hook is provided with an automatic locking device for hooking the overhead lightning protection wire and preventing the overhead lightning protection wire from slipping out and sliding off.

[0011] A further improvement lies in that: one end inside the overhead cross arm seat is provided with a threaded card slot, the double screw rod penetrates through the threaded card slot and is threadedly matched therewith. A locking slot is provided on the overhead cross arm seat at the front side position of the threaded card slot, and the locking slot communicates with the threaded card slot. The locking slot is used for threadedly installing a retracting and releasing valve rod, and the retracting and releasing valve rod is used for locking the double screw rod.

[0012] A further improvement lies in that: the inner end of the overhead cross arm seat is provided with a U-shaped groove, and the U-shaped groove is adapted to the overhead cross arm angle iron. Fixing slots are provided on the overhead cross arm seat above the U-shaped groove, and there are at least two groups of fixing slots and they communicate with the U-shaped groove. The fixing slots are used for threadedly installing locking screws, and the locking screws are used for fixing the overhead cross arm seat and the overhead cross arm angle iron.

[0013] A further improvement lies in that: an overhead lightning protection wire clamp is connected below the overhead cross arm angle iron, and the overhead lightning protection wire clamp clamps the middle end of the overhead lightning protection wire. There are two groups of left and right overhead cross arm seats, and the wire hanger hooks below the two groups of overhead cross arm seats are respectively used for hooking the two ends of the overhead lightning protection wire.

[0014] The beneficial effects of the present invention are as follows: 1. The present invention positions through the installation of the overhead cross arm seat and the overhead cross arm angle iron, hooks the overhead lightning protection wire through the wire hanger hook, and drives the double screw rod to rotate and lift by operating the rotating handle to adjust the height of the wire hanger hook. Thus, during the overhaul operations such as replacing the wire clamp in the transmission line, the operators on the tower can easily complete the lifting of the overhead lightning protection wire in the transmission line, making necessary preparations for various inspections and overhaul operations such as replacing the overhead lightning protection wire clamp, saving time and effort, being convenient, fast, safe and reliable, and not requiring professional maintenance and calibration.

[0015] 2. The present invention only needs to position by fitting the U-shaped groove of the overhead cross-arm clamp with the overhead cross-arm angle iron and fixing it with a locking screw, and thread-fitting the double screw rod with the thread slot to operate the lifting. It is convenient for disassembly and installation, light and strong, easy to carry, convenient to use, and simple to operate. It can greatly reduce the labor intensity of the tower operators and improve the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front view of the present invention; Figure 2 is of the present invention Figure 1 structural schematic diagram at position A in Figure 3 is the schematic diagram of the overhead cross-arm clamp of the present invention; Figure 4 is the upper structural schematic diagram of the double screw rod of the present invention; Figure 5 is the schematic diagram of the rotating handle of the present invention.

[0017] Wherein: 1. Overhead cross-arm clamp; 2. Double screw rod; 3. Conductor hook; 4. Overhead cross-arm angle iron; 5. Overhead lightning protection wire; 6. Sleeve block; 7. Sleeve rod; 8. Insert rod; 9. Fastening screw; 10. Insulating rubber layer; 11. Suspension rod; 12. Universal rotating head; 13. Thread slot; 14. Retracting and releasing valve rod; 15. U-shaped groove; 16. Fixed groove; 17. Locking screw; 18. Overhead lightning protection wire clamp. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to deepen the understanding of the present invention, the following will further describe the present invention in detail with reference to the embodiments. The embodiments are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention. Embodiment 1

[0019] According to Figure 1 , 2 , 3, 4, and 5, this embodiment provides a new type of portable combined overhead lightning protection wire lifting device, including an overhead cross-arm clamp 1 and a double screw rod 2. The double screw rod 2 is threadedly installed at one end inside the overhead cross-arm clamp 1, and a rotating handle is provided at the upper end of the double screw rod 2. A conductor hook 3 is rotatably provided at the lower end of the double screw rod 2; The overhead cross-arm clamp 1 is used to be installed on the overhead cross-arm angle iron 4 at the hanging point of the overhead lightning protection wire of the transmission line. The double-screw rod 2 is used to rotate and lift to adjust the height of the wire hook 3. The wire hook 3 is used to hook the overhead lightning protection wire 5. Before use, inspections are carried out, and measures such as applying lubricating oil are taken. On the ground, it is ensured that the disassembly, assembly and use of the portable combined overhead lightning protection wire lifting device are flexible and smooth. When in use, it is carried by the tower climbing operator in a backpack or, after the tower climbing operator climbs to the appropriate position of the hanging point of the overhead lightning protection wire of the transmission line tower, the ground operator transfers the lifting device to the tower operator by a transfer rope. The operator clamps the overhead cross-arm clamps 1 of the two parts of the device onto the overhead cross-arm angle iron 4 of the overhead lightning protection wire of the transmission line tower, and tightens the locking screw 17 to ensure that the lifting device is firmly fixed on the cross-arm without loosening and deviation when lifting the lightning protection wire. Then, the double-screw rod 2 is clamped into the threaded slot 13 of the overhead cross-arm clamp 1. After loosening and releasing the double-screw rod 2 to the appropriate position with the rotating handle, the two wire hooks 3 with universal rotating heads 12 are hooked onto the overhead lightning protection wire 5 and the locking pin device is locked. Before preparing to lift the overhead lightning protection wire, first check whether the various parts, mechanisms, directions and stress conditions of the device are good. If there are no problems in all aspects, the operator tightens the double-screw rod 2 with the rotating handle, making the double-screw rods 2 at both ends evenly stressed at the same time, and lifts the overhead lightning protection wire 5 to an appropriate position where the overhead lightning protection wire clamp 18 can be disassembled. Then, lock the retracting valve rod 14 to ensure that the double-screw rod 2 does not slip off. When the operation is completed, the operator locks and opens the double-screw rod 2, and then slowly loosens the double-screw rods 2 at both ends with the rotating handle until the screw rods are completely unstressed. After the wire hook 3 is disengaged from the overhead lightning protection wire 5, the locking screw 17 on the clamp of the device is loosened, and the device is disassembled and taken to the ground. After the device is used, it should be checked whether there are any deformation and damage phenomena in each part, and the screw rod should be oiled and stored in time.

[0020] The rotating handle includes a sleeve rod 7 and a plug rod 8. The plug rod 8 is movably inserted inside the sleeve rod 7, which is convenient for adjusting the length. One end of the sleeve rod 7 is provided with a sleeve block 6, and the sleeve block 6 is sleeved on the upper end of the double-screw rod 2. The sleeve block 6 and the double-screw rod 2 are fixed by a fastening screw 9. When in use, the sleeve block 6 is sleeved on the double-screw rod 2 and fixed by the fastening screw 9, which is convenient for installation and disassembly. The outer sides of the sleeve rod 7 and the plug rod 8 are both coated with an insulating rubber layer 10 to improve the insulation safety.

[0021] The lower end of the double - helix lead screw 2 is connected with a suspension rod 11, and the suspension rod 11 is integrally formed with the double - helix lead screw 2. A universal swivel head 12 is rotatably provided at the lower end of the suspension rod 11, and the wire hanger 3 is arranged below the universal swivel head 12. The wire hanger 3 is made of insulating material, and the universal swivel head 12 is a 360° rotatable alloy head. The wire hanger 3 is equipped with an automatic locking device for hooking the overhead lightning protection wire 5 and preventing the overhead lightning protection wire 5 from slipping out and falling off. The wire hanger 3 is equipped with an automatic locking device for hooking the overhead lightning protection wire 5. The locking device is mainly used to prevent the overhead lightning protection wire 5 from slipping out and falling off. It is made of high - strength insulating material, has good electrical and mechanical properties, and can effectively prevent the harm of electric current to the human body. At the same time, the insulating material has high heat - resistant performance and can adapt to various complex environments. The universal swivel head 12 is processed from high - strength alloy material, can rotate flexibly by 360 degrees, and can ensure that the double - helix lead screw 2 prevents the lead screw from twisting when lifting the overhead wire, avoiding tool damage or personal injury to the operator.

[0022] One end inside the overhead cross - arm clamp seat 1 is provided with a threaded slot 13, the double - helix lead screw 2 passes through the threaded slot 13 and is thread - fitted. A locking slot is provided on the overhead cross - arm clamp seat 1 at the front - side position of the threaded slot 13, and the locking slot is communicated with the threaded slot 13. The locking slot is used for thread - installing a retracting valve rod 14, and the retracting valve rod 14 is used to lock the double - helix lead screw 2. During use, the operator tightens the double - helix lead screw 2 with a rotating handle, so that the two ends of the double - helix lead screw 2 are evenly stressed at the same time. When the overhead lightning protection wire 5 is lifted to an appropriate position for disassembling the overhead lightning protection wire clamp 18, the retracting valve rod 14 is locked to ensure that the double - helix lead screw 2 does not slip off.

[0023] The inner end of the overhead cross - arm clamp seat 1 is provided with a U - shaped groove 15, and the U - shaped groove 15 is adapted to the overhead cross - arm angle iron 4. A fixing slot 16 is provided on the overhead cross - arm clamp seat 1 above the U - shaped groove 15, and at least two groups of fixing slots 16 are provided and communicated with the U - shaped groove 15. The fixing slots 16 are used for thread - installing locking screws 17, and the locking screws 17 are used to fix the overhead cross - arm clamp seat 1 and the overhead cross - arm angle iron 4. The overhead cross - arm clamp seat 1 is made of high - strength light steel, which has the characteristics of light weight, high strength, easy processing and good corrosion resistance. One end of the clamp seat has a U - shaped groove 15, which can be inserted into the overhead cross - arm angle iron 4; the other end has a threaded slot 13, which can hold the double - helix lead screw 2 on the overhead cross - arm clamp seat 1. The specification of the locking screw 17 is M12, and it is located at the upper end of the U - shaped groove 15, used to fix and lock the overhead cross - arm clamp seat 1 and the overhead cross - arm angle iron 4 to prevent the overhead cross - arm clamp seat 1 and the overhead cross - arm angle iron 4 from separating during the operation.

[0024] An overhead lightning protection wire clamp 18 is connected below the overhead cross-arm angle iron 4, and the overhead lightning protection wire clamp 18 clamps the middle end of the overhead lightning protection wire 5. There are two groups of left and right overhead cross-arm seat holders 1, and the wire hooks 3 below the two groups of overhead cross-arm seat holders 1 are respectively used to hook the two ends of the overhead lightning protection wire 5. During use, the operator tightens the double-screw lead screw 2 with a rotating handle, so that the two ends of the double-screw lead screw 2 are evenly stressed at the same time, and the overhead lightning protection wire 5 is lifted to an appropriate position to disassemble the overhead lightning protection wire clamp 18. Embodiment 2

[0025] According to Figure 1 、 2 As shown in FIGS. 3, 4, and 5, this embodiment proposes a new type of portable combined overhead lightning protection wire lifting device, which includes an overhead cross-arm seat holder 1 and a double-screw lead screw 2. The double-screw lead screw 2 is threadedly installed at one end inside the overhead cross-arm seat holder 1, and a rotating handle is provided at the upper end of the double-screw lead screw 2. A wire hook 3 is rotatably provided at the lower end of the double-screw lead screw 2; The overhead crossarm clamp 1 is used to be installed on the overhead crossarm angle iron 4 at the suspension point of the overhead lightning protection wire of the transmission line. The double-screw lead screw 2 is used to rotate and lift to adjust the height of the conductor hook 3. The conductor hook 3 is used to hook the overhead lightning protection wire 5. Before use, inspections are carried out and measures such as applying lubricating oil are taken. On the ground, it is determined that the disassembly, assembly and use of the portable combined overhead lightning protection wire lifting device are flexible and smooth. When in use, it is carried by the tower climbing operator in a backpack or, after the tower climbing operator climbs to a suitable position of the suspension point of the overhead lightning protection wire of the transmission line tower, the ground operator transfers the lifting device to the tower operator by a transfer rope. The operator clamps the overhead crossarm clamps 1 of the two parts of the device onto the overhead crossarm angle iron 4 of the overhead lightning protection wire of the transmission line tower, and tightens the locking screw 17 to ensure that the lifting device is firmly fixed on the crossarm without loosening and shifting when lifting the lightning protection wire. Then, the double-screw lead screw 2 is clamped into the threaded slot 13 of the overhead crossarm clamp 1. After loosening the double-screw lead screw 2 to a suitable position with the rotating handle, the two conductor hooks 3 with universal rotating heads 12 are hooked onto the overhead lightning protection wire 5 and the locking device is locked. Before preparing to lift the overhead lightning protection wire, first check whether the various parts, mechanisms, directions and force-bearing conditions of the device are in good condition. If there are no problems in all aspects, the operator tightens the double-screw lead screw 2 with the rotating handle, making the double-screw lead screws 2 at both ends evenly stressed at the same time, and lifts the overhead lightning protection wire 5 to an appropriate position where the overhead lightning protection wire clamp 18 can be disassembled. Then, lock the retracting and releasing valve rod 14 to ensure that the double-screw lead screw 2 does not slip off. When the operation is completed, the operator locks and opens the double-screw lead screw 2, and then slowly loosens the double-screw lead screws 2 at both ends with the rotating handle until the lead screws are completely free of force. After the conductor hook 3 is disengaged from the overhead lightning protection wire 5, the locking screw 17 on the clamp of the device is loosened, and the device is disassembled and taken to the ground. After the device is used, it should be checked whether there are any deformation and damage phenomena in each part, and the lead screw should be timely greased and stored.

[0026] The overhead crossarm clamp 1 has two M10 locking screws 17. When the locking screws 17 are tightened, the locking screws 17 can help the overhead crossarm clamp 1 to be firmly fixed on the overhead crossarm angle iron 4, and can effectively prevent potential safety hazards such as loosening and slipping of the overhead crossarm clamp 1 when using the device to lift the lightning protection wire.

[0027] The double-screw lead screw 2 adopts a double-screw structure. This design method not only enhances the stability of the lead screw, but also significantly reduces the resistance during rotation, making the operation more labor-saving. By optimizing the thread shape and arrangement of the lead screw, more efficient force transmission is achieved, which not only improves the work efficiency, but also extends the service life of the lead screw.

[0028] A retractable valve can also be adopted at the upper end of the double-screw lead 2. This retractable valve consists of two switches on the left and right. By adjusting the switches, the up-and-down movement direction of the double-screw lead 2 can be changed, realizing the lifting and falling of the overhead lightning protection wire 5, thus providing convenient conditions for subsequent operations. Rotate the handle, which rotates in different directions by the operator and cooperates with the lifting and falling switches of the retractable valve at the upper end of the double-screw lead 2, enabling the effective lifting and falling of the double-screw lead 2. At the same time, the connection between the sleeve block 6 of the handle and the lead screw is detachable, facilitating assembly and disassembly. Additionally, the connection can rotate at multiple angles, ensuring that the operator can rotate the handle at multiple angles and facilitating the operator to operate in various postures.

[0029] The lower end of the double-screw lead 2 is connected to a universal swivel head 12 and a wire hook 3. The universal swivel head 12 can effectively ensure that when lifting and relaxing the overhead lightning protection wire 5, when the lightning protection wire tilts and swings left and right due to reasons such as wind sway or other forces, the lifting device can work normally, avoiding phenomena such as damage to tools like lead screw bending. The locking device on the wire hook 3 can prevent the lightning protection wire from slipping out of the hook, thus effectively ensuring the personal and equipment safety of operators, tools, accessories, and the lightning protection wire during the lifting and falling process of the lightning protection wire.

[0030] The novel portable combined overhead lightning protection wire lifting device is positioned by installing the overhead cross-arm seat 1 on the overhead cross-arm angle iron 4, hooks the overhead lightning protection wire 5 through the wire hook 3, and drives the double-screw lead 2 to rotate and lift to adjust the height of the wire hook 3 by operating and rotating the handle. Thus, during the overhaul operations such as replacing the clamp on the transmission line, the operator on the tower can easily complete the lifting of the overhead lightning protection wire 5 in the transmission line, making necessary preparations for various inspections and overhaul operations such as replacing the overhead lightning protection wire clamp 18, saving time and effort, being convenient, fast, safe and reliable, and not requiring professional maintenance and calibration. And for this invention, only by fitting the U-shaped groove 15 of the overhead cross-arm seat 1 with the overhead cross-arm angle iron 4 and fixing it with the locking screw 17 can it be positioned, and by threading the double-screw lead 2 with the threaded card slot 13 can it be operated for lifting and lowering, which is convenient for disassembly and installation, light and strong, easy to carry, convenient to use, simple to operate, can greatly reduce the labor intensity of the tower operators, and improve work efficiency.

[0031] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable combined overhead lightning arrester lifting device, comprising an overhead cross arm holder (1) and a double helical screw (2), characterized in that: The double helical screw (2) is threadedly mounted on one end of the overhead cross arm holder (1), and a rotating handle is provided at the upper end of the double helical screw (2), and a wire hook (3) is rotatably provided at the lower end of the double helical screw (2); The overhead cross arm holder (1) is used to be installed on an overhead cross arm angle iron (4) at a suspension point of an overhead lightning arrester of a power transmission line; the double helical screw (2) is used to rotate and lift a conductor hook (3) to adjust the height; the conductor hook (3) is used to hook the overhead lightning arrester (5).

2. A portable combined overhead lightning conductor lifting device according to claim 1, characterized in that: The rotating handle comprises a sleeve rod (7) and an insertion rod (8), and the insertion rod (8) is movably inserted inside the sleeve rod (7).

3. A portable combined overhead lightning conductor lifting device according to claim 2, characterized in that: A sleeve block (6) is provided at one end of the sleeve rod (7), and the sleeve block (6) is sleeved on the upper end of the double helical screw (2), and the sleeve block (6) and the double helical screw (2) are fixed by a fastening screw (9).

4. A portable combined overhead lightning conductor lifting device according to claim 3, characterized in that: The outer sides of the sleeve rod (7) and the insertion rod (8) are both coated with an insulating rubber layer (10).

5. A portable combined overhead lightning conductor lifting device according to claim 1, characterized in that: The lower end of the double helical screw (2) is connected to a suspension rod (11), and the suspension rod (11) and the double helical screw (2) are integrally formed. The lower end of the suspension rod (11) is rotatably provided with a universal swivel head (12), and the wire hook (3) is arranged below the universal swivel head (12).

6. A portable combined overhead lightning conductor lifting device according to claim 5, characterized in that: The wire hook (3) is made of insulating material, and the universal swivel head (12) is a 360° rotatable alloy head.

7. A portable combined overhead lightning conductor lifting device according to claim 6, characterized in that: The conductor hook (3) is provided with an automatic locking device for hooking the overhead lightning conductor (5) and preventing the overhead lightning conductor (5) from falling out and sliding off.

8. A portable combined overhead lightning conductor lifting device according to claim 1, characterized in that: A threaded slot (13) is provided at one end of the interior of the overhead cross arm holder (1), the double helical screw (2) passes through the threaded slot (13) and is threadably adapted thereto, a locking slot is provided on the overhead cross arm holder (1) at a position in front of the threaded slot (13), and the locking slot is communicated with the threaded slot (13), the locking slot is used for threadably mounting a retractable valve stem (14), and the retractable valve stem (14) is used for locking the double helical screw (2).

9. A portable combined overhead lightning conductor lifting device according to claim 1, characterized in that: The inner end of the overhead cross arm holder (1) is provided with a U-shaped groove (15), and the U-shaped groove (15) is adapted to the overhead cross arm angle iron (4). The overhead cross arm holder (1) is provided with a fixing groove (16) at a position above the U-shaped groove (15), and the fixing groove (16) is provided with at least two groups and is connected to the U-shaped groove (15). The fixing groove (16) is used for threaded installation of a locking screw (17), and the locking screw (17) is used to fix the overhead cross arm holder (1) and the overhead cross arm angle iron (4).

10. A portable combined overhead lightning conductor lifting device according to claim 1, characterized in that: An overhead lightning arrester wire clamp (18) is connected below the overhead cross arm angle iron (4), and the overhead lightning arrester wire clamp (18) clamps the middle end of the overhead lightning arrester wire (5). The overhead cross arm clamp (1) is provided with two groups on the left and right, and the conductor hooks (3) below the two groups of overhead cross arm clamps (1) are respectively used to hook the two ends of the overhead lightning arrester wire (5).

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