Device for assisting installation of 220kV and 500kV grounding wires

Abstract

The invention discloses a device for assisting installation of 220kV and 500kV grounding wires, and belongs to the technical field of power equipment auxiliary devices. The device comprises a control base frame, a motor is mounted on the control bottom table; the action of the motor is controlled by the control bottom table; the output end of the motor is vertically arranged upwards, and a screw capable of being matched with the motor to rotate is installed at the output end. An insulating lifting rod and an action conversion device are movably mounted on the screw rod; the action conversion device is used for changing the transmission mode between the insulating lifting rod and the screw rod; a connecting clamping head is mounted on the insulating lifting rod; an insulating transition rod is detachably mounted on the connecting chuck; the upper part of the insulation transition rod is provided with a hanging rod fixing assembly used for clamping a ground wire hanging rod. According to the invention, the problem that a single operator cannot carry out grounding installation operation easily and quickly because the grounding wire of the high-voltage line is too heavy is effectively solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power equipment auxiliary device, in particular to a device for assisting installation of 220kV and 500kV grounding wire. BACKGROUND

[0002] 220kV and 500kV lines are common high-voltage lines in China, and the standard requirement for installing grounding wire on ordinary lines in a substation is generally that two operators observe and operate; however, due to the great weight of the grounding wire used for these high-voltage lines, it is difficult for a single operator to complete the grounding operation alone, so in actual operation, a board car with lifting function is often used to lift the grounding wire rod to be installed and the operator to a high enough position, so as to reduce the working intensity of the single operator; however, it is obvious that this board car structure cannot be applied in most scenes, and the management of the board car also increases the working intensity of the operator, therefore, a substation grounding wire installation device capable of reducing the working intensity of the operator is currently needed. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a device for assisting installation of 220kV and 500kV grounding wire, so as to solve the problem that a single operator cannot easily and quickly perform grounding installation operation due to the excessive weight of the grounding wire of high-voltage lines.

[0004] To solve the above problems, the present application provides the following technical scheme: A device for assisting installation of 220kV and 500kV grounding wire, comprising a control base; a motor is installed on the control base; the power supply of the motor is provided by a battery arranged in the control base, and the action of the motor is also controlled by the control base; the output end of the motor is arranged vertically upward, and a screw rod capable of rotating with the motor is installed on the output end; an insulating lifting rod and an action conversion device are movably installed on the screw rod; the action conversion device is used to change the transmission mode between the insulating lifting rod and the screw rod; a connecting clamp is installed on the insulating lifting rod; an insulating transition rod is detachably installed on the connecting clamp; a hanging rod fixing assembly for clamping a grounding wire hanging rod is arranged on the upper part of the insulating transition rod.

[0005] Preferably, the control base comprises a base; a support is installed on the base for positioning the motor; a rechargeable battery and a processor are further arranged on the base; the processor is a control circuit board structure placed on the side of the support.

[0006] Further, the control base further comprises a foot pedal controller; the foot pedal controller is connected with the processor through a wire, and the foot pedal controller can also control the action of the motor; a voice acquisition module is further integrated on the processor.

[0007] Further, the base has two types, one is a concrete base for matching with concrete ground; the other is a soil base for matching with field mud; the lower side of the concrete base is provided with a silica gel suction cup; and the lower side of the soil base is provided with soil nails.

[0008] Preferably, the lower side of the insulating lifting rod is a cylindrical hollow structure capable of accommodating the screw rod; the action conversion device comprises a top plate; an inner threaded hole for matching with the screw rod is formed in the middle of the top plate; a ring sleeve is sleeved on the outer circumferential side of the top plate; the inner diameter of the ring sleeve is consistent with the outer diameter of the bottom end of the insulating lifting rod; a limiting clamp is detachably mounted on the side wall of the ring sleeve; and a positioning groove matched with the limiting clamp is formed on the outer side wall of the bottom of the insulating lifting rod.

[0009] Further, the limiting clamp comprises an auxiliary block arranged on the outer side wall of the ring sleeve; a positioning threaded hole is formed in the middle of the auxiliary block along the radial direction of the insulating lifting rod; the distance between the positioning threaded hole and the inner bottom surface of the top plate is the same as the distance between the positioning groove and the bottom end surface of the insulating lifting rod; a positioning bolt is movably mounted on the positioning threaded hole through threaded connection; a positioning steel ball is further mounted on the end of the positioning bolt inserted into the positioning threaded hole; and the size of the positioning steel ball is matched with the width of the positioning groove.

[0010] Preferably, a lifting buffer device is further mounted on the lower side of the connecting clamp; the lifting buffer device comprises a buffer rod; the lower part of the buffer rod can be inserted into the inner cavity of the top part of the insulating lifting rod for arrangement; a guide groove is formed in the circumferential side wall of the buffer rod; the guide groove is arranged along the axial direction of the buffer rod; a limiting bolt is detachably mounted on the upper part of the insulating lifting rod; one end of the limiting bolt is inserted into the guide groove for arrangement; and a buffer clamp is further arranged on the buffer rod.

[0011] Preferably, a torque constant device is further mounted on the output end of the motor; the torque constant device comprises an input shaft and an output shaft; one end of the input shaft is connected to the output end of the motor; the output shaft is connected with the screw rod; a detachable damping adjustment box is mounted between the input shaft and the output shaft; a lower damping disc and an upper damping disc connected with the input shaft and the output shaft respectively are arranged in the damping adjustment box; damping convex teeth are mounted between the opposite end faces of the lower damping disc and the upper damping disc; a damping spring is further arranged between the upper damping disc and the inner top surface of the damping adjustment box; and the damping spring is arranged around the output shaft.

[0012] Preferably, the hanger rod fixing assembly comprises a fastening end cap and a hanger rod fastening clamp; the fastening end cap is installed at the top of the insulating rod, and an internally threaded section is arranged in the inner cavity of the fastening end cap and close to one side of the insulating rod; an externally threaded section matched with the internally threaded section is arranged on the lower peripheral side of the hanger rod fastening clamp; a petal-shaped collet for clamping the end part of the ground wire hanger rod is further arranged on the upper side of the hanger rod fastening head; and anti-skid lines are further arranged on the outer peripheral side of the fastening end cap.

[0013] The application further discloses a use method of the auxiliary installation device. S1, selecting corresponding base types and insulating transition rod types according to working environments; then placing a control base under a wire to be installed with a ground wire; and installing a handle part of a ground wire hanger rod on a hanger rod fixing assembly; S2, an operator converts a limiting clamping piece on a motion conversion device and a positioning groove on the insulating lifting rod through a separation action, so that the screw rod cannot drive the insulating lifting rod to rotate; S3, the operator holds the insulating lifting rod or the insulating transition rod by hand, and controls a motor to start through the control base; the motor outputs a torque to the screw rod to drive the screw rod to rotate; in the rotating process, the motion conversion device is driven to rotate by the screw rod, so that the upper insulating lifting rod is pushed to move upward; until the ground wire hanger rod located at the top of the hanger rod fixing assembly is successfully hung on the wire to be grounded, at this time, it is necessary to ensure that the length of the lifting buffer device relative to the insulating lifting rod is in a proper range, and then the motor action is stopped; S4, the operator connects the ground wire hanger rod to the hanger rod fastening head, and combines the limiting clamping piece on the motion conversion device and the positioning groove on the insulating lifting rod; so that the screw rod can drive the insulating lifting rod to rotate; S5, the operator controls the motor to continue to rotate in the same direction; the screw rod drives the insulating lifting rod and the hanger rod fixing assembly to rotate through the motion conversion device; so that the ground wire hanger rod is correspondingly tightened; in this process, the lifting buffer device will move synchronously with the gradually tightened ground wire hanger rod, so as to prevent a vertical lifting force from being generated on the lower structure; S6, after the ground wire hanger rod is successfully installed, the hanger rod fixing assembly can be disassembled in the reverse order, and the insulating lifting rod is retracted to complete the installation of the ground wire. The beneficial effects of the application are embodied in the following aspects: 1, it can configure insulating transition rods with different lengths according to voltage levels and substation equipment arrangement, and cooperate with ground wires to achieve a suitable length (height) to complete the installation or removal of the ground wire; 2, the lifting buffer device can enable the insulating transition rod to have a small range of upward and downward movement area; avoiding lifting the base when tightening the hanger rod; 3. The action conversion device can realize the function conversion of tightening or loosening when disassembling; 4. The torque constant device can realize the stable output of the motor torque, and improve the stability of the work; 5. The processor can realize the start-stop, forward or reverse rotation of the motor, and the motor speed control, and at the same time has the function of line control and sound control, and the operation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a schematic diagram of the inventive device in the embodiment; Figure 2 is a structural schematic diagram of the hanging rod fixing assembly in the embodiment; Figure 3 is a structural schematic diagram of the lifting buffer device in the embodiment; Figure 4 is a structural schematic diagram of the action conversion device in the embodiment; Figure 5 is a structural schematic diagram of the torque constant device in the embodiment; Figure 6 is a connection schematic diagram of the electrical element in the embodiment; BRIEF DESCRIPTION OF DRAWINGS 1. Control base, 1A, base, 1B, support table, 1C, battery, 1D, processor, 1E, foot controller, 2, motor, 3, screw rod, 4, insulating lifting rod, 4A, positioning groove, 5, action conversion device, 5A, top plate, 5B, ring sleeve, 5C, limiting clamp, 5C1, auxiliary block, 5C2, positioning threaded hole, 5C3, positioning bolt, 5C4, positioning steel ball, 6, connecting clamp, 7, insulating transition rod, 8, hanging rod fixing assembly, 8A, fastening end cap, 8B, hanging rod fastening clamp, 8C, petal-shaped clamp, 9, lifting buffer device, 9A, buffer rod, 9B, guide groove, 9C, limiting bolt, 9D, buffer clamp, 10, torque constant device, 10A, input shaft, 10B, output shaft, 10C, damping adjustment box, 10D, lower damping disc, 10E, upper damping disc, 10F, damping convex tooth, 10G, damping spring. DETAILED DESCRIPTION

[0015] The application will be further described below in combination with the drawings and specific embodiments: Embodiment: Referring to Figure 1The embodiment provides a device for assisting installation of 220kV and 500kV grounding wires; it comprises a control base 1; a motor 2 is installed on the control base 1; the motor 2 is powered by a battery arranged in the control base 1, and the action of the motor 2 is also controlled by the control base 1; the output end of the motor 2 is arranged vertically upward, and a screw rod 3 capable of rotating with the motor 2 is installed on the output end; an insulating lifting rod 4 and an action conversion device 5 are movably installed on the screw rod 3; the action conversion device 5 is used for changing the transmission mode between the insulating lifting rod 4 and the screw rod 3; a connecting clamp head 6 is installed on the insulating lifting rod 4; the insulating transition rod 7 is detachably installed on the connecting clamp head 6; a hanging rod fixing assembly 8 for clamping a grounding wire hanging rod is arranged on the upper portion of the insulating transition rod 7. The control base 1 comprises a base 1A; a support 1B for positioning the motor 2 is installed on the base 1A; a rechargeable battery 1C and a processor 1D are further arranged on the base 1A; the processor 1D is a control circuit board structure placed on the side of the support 1B.

[0016] The control base 1 further comprises a foot controller 1E; the foot controller 1E is connected with the processor 1D through wires, and the foot controller 1E can also control the action of the motor 2; a voice acquisition module is further integrally arranged on the processor 1D.

[0017] The base 1A has two types, one is a concrete base used for matching with a concrete floor; the other is a soil base used for matching with a field mud; a silica gel suction cup is arranged on the lower side of the concrete base; soil nails are arranged on the lower side of the soil base; in addition, the base in the embodiment is detachably connected with the support through a plug fastener; before use, only different types of bases need to be selected and installed on the support according to the requirement.

[0018] The lower side of the insulating lifting rod 4 is a cylindrical hollow structure capable of accommodating the screw rod 3; the action conversion device 5 comprises a top plate 5A; an inner threaded hole for matching with the screw rod 3 is opened in the middle portion of the top plate 5A; a ring sleeve 5B is sleeved on the outer circumferential side of the top plate 5A; the inner diameter of the ring sleeve 5B is consistent with the outer diameter of the bottom end of the insulating lifting rod 4; a limiting clamp 5C is detachably installed on the side wall of the ring sleeve 5B; a positioning groove 4A matched with the limiting clamp 5C is opened on the outer side wall of the bottom of the insulating lifting rod 4. Ring clamps and ring grooves matched with each other are further arranged on the top of the ring sleeve and on the lower side of the insulating lifting rod 4; the action conversion device is movably installed on the insulating lifting rod 4 through the cooperation of the ring groove and the ring clamp, so that the action conversion device, the insulating lifting rod and the screw rod form a structure similar to a screw rod and a nut transmission.

[0019] The limiting clip 5C includes an auxiliary block 5C1 disposed on the outer wall of the ring 5B; a positioning threaded hole 5C2 is formed in the middle of the auxiliary block 5C1 along the radial direction of the insulating lifting rod 4; the distance between the positioning threaded hole 5C2 and the inner bottom surface of the top plate 5A is the same as the distance between the positioning groove 4A and the bottom end face of the insulating lifting rod 4; a positioning bolt 5C3 is movably installed on the positioning threaded hole 5C2 by means of a threaded connection; a positioning steel ball 5C4 is also installed at the end of the positioning bolt 5C3 that extends into the positioning threaded hole 5C2; the size of the positioning steel ball 5C4 matches the width of the positioning groove 4A.

[0020] A lifting buffer device 9 is also installed on the lower side of the connecting clip 6; the lifting buffer device includes a buffer rod 9A; the lower part of the buffer rod 9A can be inserted into the inner cavity at the top of the insulating lifting rod 4 for setting; a guide groove 9B is also opened on the peripheral side wall of the buffer rod 9A; the guide groove 9B is set along the axial direction of the buffer rod 9A; a limiting bolt 9C can also be detachably installed on the upper part of the insulating lifting rod 4; one end of the limiting bolt 9C is inserted into the guide groove 9B for setting; a buffer clip 9D is also provided on the buffer rod 9A. In this embodiment, a limiting bolt is also provided on the buffer clip 9D for adjusting the installation position of the buffer clip on the buffer rod.

[0021] A torque constant device 10 is also installed at the output end of the motor 2; the torque constant device 10 includes an input shaft 10A and an output shaft 10B; one end of the input shaft 10A is connected to the output end of the motor 2; the output shaft 10B is connected to the screw 2; a detachable damping adjustment box 10C is installed between the input shaft 10A and the output shaft 10B; a lower damping disk 10D and an upper damping disk 10E are respectively connected to the input shaft 10A and the output shaft 10B in the damping adjustment box 10C; damping cams 10F are installed between the opposite end faces of the lower damping disk 10D and the upper damping disk 10E; a damping spring 10G is also provided between the upper damping disk 10E and the inner top surface of the damping adjustment box 10C; the damping spring 10G is arranged around the output shaft 10B.

[0022] The hanging pole fixing assembly 8 includes a fastening end cap 8A and a hanging pole fastening clamp 8B; the fastening end cap 8A is installed on the top of the insulating rod 7, and an internal thread section is provided in the inner cavity of the fastening end cap 8A on the side near the insulating rod 7; an external thread section that mates with the internal thread section is provided on the lower circumference of the hanging pole fastening clamp 8B; a petal-shaped clamp 8C for clamping the end of the grounding wire hanging pole is also provided on the upper side of the hanging pole fastening head 8B; and anti-slip texture is also provided on the outer circumference of the fastening end cap 8A.

[0023] When using the grounding wire device in this embodiment, the following steps can be followed: S1, according to the working environment, select the corresponding base type and insulation transition rod 7 type; then place the control base 1 under the wire to be installed with grounding wire; at the same time, install the handle of the grounding wire hanging rod on the hanging rod fixing assembly 8; S2, the operator converts the limiting clamp 5C on the action conversion device 5 and the positioning groove 4A on the insulation lifting rod 4 through a separation action, so that the screw rod 3 cannot drive the insulation lifting rod 4 to rotate; S3, the operator holds the insulation lifting rod or the insulation transition rod by hand, and controls the motor 2 to start through the control base 1; the motor 2 outputs torque to the screw rod 3 to drive the screw rod 3 to rotate; in the process of rotation, the action conversion device 5 is driven to rotate by the screw rod 3, so as to push the upper insulation lifting rod 4 to move upwards; until the grounding wire hanging rod on the top of the hanging rod fixing assembly 8 is successfully hung on the wire to be grounded, at this time, the length of the lifting buffer device 9 relative to the extension of the insulation lifting rod 4 should be in a proper range, then stop the action of the motor 2; S4, the operator connects the grounding wire hanging rod into the hanging rod fastening head 8B, and combines the limiting clamp 5C on the action conversion device 5 and the positioning groove 4A on the insulation lifting rod 4; so that the screw rod 3 can drive the insulation lifting rod 4 to rotate; S5, the operator controls the motor 2 to continue to rotate in the same direction; the screw rod 3 drives the insulation lifting rod 4 and the hanging rod fixing assembly 8 to rotate through the action conversion device 5; so that the grounding wire hanging rod is correspondingly tightened; in this process, the lifting buffer device 9 will move synchronously with the gradually tightened grounding wire hanging rod, so as to prevent the vertical lifting force on the lower structure; S6, after the grounding wire hanging rod is successfully installed, the hanging rod fixing assembly 8 can be disassembled in the reverse order, and the insulation lifting rod 4 is retracted to complete the installation of the grounding wire.

Claims

1. An apparatus for assisting installation of a 220 kV, 500 kV grounding wire, characterized in that: It includes control base (1), motor (2) is installed on control base (1), the power supply of motor (2) is provided by battery arranged in control base (1), and its action is also controlled by control base (1), the output end of motor (2) is vertically arranged upwards, and screw rod (3) that can cooperate with the rotation of motor (2) is installed on the output end, insulating lifting rod (4) and action conversion device (5) are movably installed on screw rod (3), action conversion device (5) is used to change the transmission mode between insulating lifting rod (4) and screw rod (3), connecting chuck (6) is installed on insulating lifting rod (4), insulating transition rod (7) is detachably installed on connecting chuck (6), and hanging rod fixing assembly (8) for clamping ground wire hanging rod is arranged on the upper portion of insulating transition rod (7).

2. The device for assisting installation of 220 kV and 500 kV grounding wire according to claim 1, characterized in that: Control base (1) includes base (1A), support (1B) for positioning motor (2) is installed on base (1A), and rechargeable battery (1C) and processor (1D) are also arranged on base (1A), and processor (1D) is control circuit board structure placed on the side of support (1B).

3. The device for assisting installation of 220 kV and 500 kV grounding wire according to claim 2, characterized in that: Control base (1) also includes foot controller (1E), foot controller (1E) is connected with processor (1D) through wire, and foot controller (1E) can also control the action of motor (2), and voice acquisition module is also integrally arranged on processor (1D).

4. The device for assisting installation of 220 kV and 500 kV grounding wire according to claim 2, characterized in that: Base (1A) has two kinds, one is concrete base for cooperating with concrete floor, and the other is soil base for cooperating with field mud, silica gel suction cup is arranged on the lower side of concrete base, and soil nail is arranged on the lower side of soil base.

5. The device for assisting installation of 220 kV and 500 kV grounding wire according to claim 1, characterized in that: The lower side of insulating lifting rod (4) is cylindrical hollow structure that can accommodate screw rod (3) into, action conversion device (5) includes top plate (5A), inner thread hole for cooperating with screw rod (3) is formed in the middle of top plate (5A), ring sleeve (5B) is sleeved on the outer circumferential side of top plate (5A), the inner diameter of ring sleeve (5B) is consistent with the outer diameter of the bottom end of insulating lifting rod (4), limit clamping piece (5C) is detachably installed on the side wall of ring sleeve (5B), and positioning groove (4A) matched with the limit clamping piece (5C) is formed on the outer side wall of the bottom of insulating lifting rod (4).

6. The device for assisting installation of 220 kV, 500 kV grounding wire according to claim 5, characterized in that: Limit clamping piece (5C) includes auxiliary block (5C1) arranged on the outer side wall of ring sleeve (5B), positioning threaded hole (5C2) is formed in the middle of auxiliary block (5C1) along the radial direction of insulating lifting rod (4), the distance between positioning threaded hole (5C2) and the inner bottom surface of top plate (5A) is same with the distance between positioning groove (4A) and the bottom end surface of insulating lifting rod (4), positioning bolt (5C3) is movably installed on positioning threaded hole (5C2) through threaded connection, positioning steel ball (5C4) is also installed on the end of positioning bolt (5C3) inserted into positioning threaded hole (5C2), and the size of positioning steel ball (5C4) is matched with the width of positioning groove (4A).

7. The device for assisting installation of 220 kV, 500 kV grounding wire according to claim 1, characterized in that: A lifting buffer device (9) is also installed on the lower side of the connecting clip (6); the lifting buffer device includes a buffer rod (9A); the lower part of the buffer rod (9A) can be inserted into the inner cavity at the top of the insulating lifting rod (4) for setting; a guide groove (9B) is also opened on the peripheral side wall of the buffer rod (9A); the guide groove (9B) is set along the axial direction of the buffer rod (9A); a limiting bolt (9C) can also be detachably installed on the upper part of the insulating lifting rod (4); one end of the limiting bolt (9C) is inserted into the guide groove (9B) for setting; a buffer clip (9D) is also provided on the buffer rod (9A).

8. The device for assisting installation of 220 kV, 500 kV grounding wire according to claim 1, characterized in that: A torque constant device (10) is also installed at the output end of the motor (2); the torque constant device (10) includes an input shaft (10A) and an output shaft (10B); one end of the input shaft (10A) is connected to the output end of the motor (2); the output shaft (10B) is connected to the screw (2); a detachable damping adjustment box (10C) is installed between the input shaft (10A) and the output shaft (10B); The damping adjustment box (10C) is equipped with a lower damping disk (10D) and an upper damping disk (10E) that are respectively connected to the input shaft (10A) and the output shaft (10B); damping cams (10F) are installed between the opposite end faces of the lower damping disk (10D) and the upper damping disk (10E); a damping spring (10G) is also provided between the upper damping disk (10E) and the inner top surface of the damping adjustment box (10C); the damping spring (10G) is arranged around the output shaft (10B).

9. The device for assisting installation of 220 kV, 500 kV grounding wire according to claim 1, characterized in that: The hanging pole fixing assembly (8) includes a fastening end cap (8A) and a hanging pole fastening clamp (8B); the fastening end cap (8A) is installed on the top of the insulating rod (7), and an internal thread section is provided in the inner cavity of the fastening end cap (8A) on the side near the insulating rod (7); an external thread section that mates with the internal thread section is provided on the lower circumference of the hanging pole fastening clamp (8B); a petal-shaped clamp (8C) for clamping the end of the grounding wire hanging pole is also provided on the upper side of the hanging pole fastening head (8B); and anti-slip texture is also provided on the outer circumference of the fastening end cap (8A).

10. The method for assisting installation of the 220kV and 500kV grounding wire device according to any one of claims 1-9, characterized in that: Includes the following steps: S1. Select the appropriate base type and insulating transition rod (7) type according to the working environment; then place the control base (1) under the conductor of the grounding wire to be installed; at the same time, install the handle of the grounding wire hanging rod onto the hanging rod fixing assembly (8); S2. The operator uses the limit clip (5C) on the separation action conversion device (5) and the positioning groove (4A) on the insulating lifting rod (4) to prevent the screw (3) from driving the insulating lifting rod (4) to rotate. S3, the operator holds the insulating lifting rod or the insulating transition rod with hands, and starts the motor (2) by controlling the base table (1); the motor (2) outputs torque to the screw rod (3) to drive the screw rod (3) to rotate; in the rotating process, the action conversion device (5) is driven to rotate by the screw rod (3) to push the upper insulating lifting rod (4) to move upward; until the grounding wire hanger at the top of the hanger fixing assembly (8) is successfully connected to the to-be-connected grounding wire, at this time, the length of the lifting buffer device (9) relative to the extension of the insulating lifting rod (4) needs to be ensured in a proper range, and then the motor (2) is stopped; S4, the operator connects the grounding wire hanger into the hanger fastening head (8B), and combines the limiting clamping piece (5C) on the action conversion device (5) with the positioning groove (4A) on the insulating lifting rod (4); so that the screw rod (3) can drive the insulating lifting rod (4) to rotate; S5, the operator controls the motor (2) to continue to rotate in the same direction; the screw rod (3) drives the insulating lifting rod (4) and the hanger fixing assembly (8) to rotate through the action conversion device (5); so that the grounding wire hanger is correspondingly tightened; in this process, the lifting buffer device (9) will move synchronously with the gradually tightened grounding wire hanger to prevent vertical lifting force on the lower structure; S6, after the grounding wire hanger is successfully installed, the hanger fixing assembly (8) can be disassembled and the insulating lifting rod (4) can be retracted in the reverse order to complete the installation of the grounding wire.

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