阅读说明：本技术 一种变电站接地线移动操作装置及接地线连接方法 (Transformer substation grounding wire moving operation device and grounding wire connection method ) 是由 宋晓军 陈若冰 刘奇峰 盛耀巍 石超 赵明康 张秋霞 赵艳珍 于 2021-08-31 设计创作，主要内容包括：本发明属于变电站地线操作装置技术领域,具体涉及一种变电站接地线移动操作装置及接地线连接方法。装置包括支架,所述的支架的两个侧面上分别设置有间隔的两竖向支撑杆,所述的支架上设置有把手,两所述的竖向支撑杆上分别设置有地线收线架转动装置,所述的支架上固定设置有地线支撑装置、调整地线支撑装置的液压杆升降装置,使用该装置进行接地线连接移动灵活,适用于各种作业条件,解决了以往接地线在使用中经常发生乱线、扭曲、拖拉损伤、使用不便、保管不便的难题。(The invention belongs to the technical field of substation ground wire operation devices, and particularly relates to a substation ground wire moving operation device and a ground wire connection method. The device comprises a support, two side surfaces of the support are respectively provided with two vertical supporting rods at intervals, the support is provided with a handle, the two vertical supporting rods are respectively provided with a ground wire take-up frame rotating device, the support is fixedly provided with a ground wire supporting device and a hydraulic rod lifting device for adjusting the ground wire supporting device, the device is used for connecting and moving the ground wire flexibly, is suitable for various operating conditions, and solves the problems that the conventional ground wire is often disordered, distorted, dragged and damaged, inconvenient to use and inconvenient to store in use.)

1. The utility model provides a transformer substation ground wire removes operating means, includes support (1), two sides of support (1) on be provided with two vertical support bar (3) of interval respectively, support (1) on be provided with handle (15), its characterized in that, two vertical support bar (3) on be provided with ground wire take-up stand rotating device respectively, the support on the fixed hydraulic stem elevating gear who is provided with ground wire strutting arrangement, adjustment ground wire strutting arrangement.

2. The substation grounding wire moving operation device according to claim 1, wherein the grounding wire take-up stand rotating device comprises a first support plate (4) and a second support plate (17) which are fixedly arranged between two vertical support rods (3) at two sides, a spiral sleeve (16) is fixedly arranged through the first support plate (4), a rotary crank arm (5) in spiral connection with the spiral sleeve (16) is arranged in the spiral sleeve (16), and one end of the rotary crank arm (5) is movably connected with a first clamping plate (6) positioned at the inner side of the bracket (1) through a bearing; run through backup pad two (17) be provided with the rotation axis through the bearing activity, be located support (1) inboard rotation axis tip fixed connection grip block two (7), rotation axis other end fixed connection ground wire frame swiveling wheel (18), backup pad one (4) and backup pad two (17) position correspond to set up and the central line coincides mutually, grip block one (6) and grip block two (7) position correspond to set up and the central line coincides mutually.

3. The substation grounding wire moving operation device according to claim 1, wherein the grounding wire support device comprises a grounding wire rod barrel rotating seat (11) and a grounding wire rod barrel (10) movably arranged on the grounding wire rod barrel rotating seat (11), the grounding wire rod barrel rotating seat (11) is movably arranged in the middle of a second fixed shaft (20) in a ring mode through a bearing, the second fixed shaft (20) is fixedly arranged on the support (1), and the grounding wire rod barrel (10) is connected with the hydraulic rod lifting device.

4. The substation grounding wire moving operation device according to claim 3, wherein the hydraulic rod lifting device comprises a first fixed shaft (19) fixedly arranged on the support (1), a hydraulic rod rotating seat (8) is arranged in the middle of the first fixed shaft (19) through a bearing ring, a hydraulic rod barrel (9) is movably arranged on the hydraulic rod rotating seat (8), a hydraulic telescopic rod (22) is arranged in the hydraulic rod barrel (9), and the hydraulic telescopic rod (22) is fixedly connected with the grounding rod barrel (10).

5. The substation grounding wire moving operation device according to claim 3, wherein the grounding wire supporting device further comprises a gear (21) movably arranged on the second fixed shaft (20) and fixedly connected with the grounding wire rod barrel rotating seat (11), a positioning bolt (14) is arranged at a position corresponding to teeth of the gear (21), a flat clamping portion meshed with the teeth of the gear (21) is arranged at the end of the positioning bolt (14), a nut (24) is fixedly arranged on the positioning bolt (14) close to the flat clamping portion, a spring (25) is further arranged on the positioning bolt (14), and one end of the spring (25) tightly abuts against the nut (24).

6. The substation grounding wire moving operation device according to claim 5, characterized in that a plurality of reinforcing blocks (12) are arranged on the bracket at regular intervals, all the reinforcing blocks (12) are connected in a penetrating manner through a connecting rod (13), and the positioning bolt (14) penetrates through the reinforcing blocks (12) and corresponds to teeth of the gear (21).

7. The substation grounding wire moving operation device according to claim 4, wherein two symmetrical reinforcing support rods (23) are fixedly arranged on the inner side of the bracket (1), and both ends of the first fixing shaft (19) and both ends of the second fixing shaft (20) are fixedly arranged on the two reinforcing support rods (23).

8. The substation grounding wire moving operation device according to claim 3, wherein the grounding wire rod barrel (10) is an adjustable rod barrel and comprises a plurality of telescopic barrels, sliding block strips (10-4) are symmetrically arranged on the side edge of the outer wall of the innermost telescopic barrel, matching sliding grooves (10-5) are correspondingly arranged on the inner wall of the other adjacent telescopic barrel and the sliding block strip (10-4) on the telescopic barrel connected with the other adjacent telescopic barrel, a plurality of uniform positioning holes (10-6) are arranged on each section of telescopic barrel, the positioning holes (10-6) are limited in position through limiting bolts, and the adjacent telescopic barrels are connected in a sliding mode through the sliding blocks and the sliding grooves.

9. The grounding wire moving operation device for the transformer substation according to claim 1, wherein four corners of the bottom of the bracket (1) are respectively provided with universal wheels (2) convenient to move.

10. A method for ground connection using a substation ground wire movement operating device according to any of claims 1-9 above, characterized by the steps of:

s1, fixing a ground wire frame, namely placing the ground wire frame on a first clamping plate (6) and a second clamping plate (17), and rotating and adjusting a rotating crank arm (5) to enable the first clamping plate (6) at the end part of the rotating crank arm to move towards the second clamping plate (17) to fix the ground wire frame;

s2, placing the ground wire, wherein the ground wire frame of the rotating wheel (18) of the rotary ground wire frame rotates to pull the ground wire to easily place the ground wire;

s3, placing a ground wire, grounding the grounding end of the ground wire, and placing the conductor end into the top of the ground wire operating rod for fixing;

s4, adjusting the height and the gradient of the ground wire rod barrel (10);

s5, pulling out the positioning bolt (14) to enable the positioning bolt to leave the gear (21), starting a hydraulic rod lifting device, enabling the ground wire rod barrel (10) to rise under the action of a hydraulic telescopic rod (22) until the ground wire rod barrel can be contacted with a conductor to be connected in height, and rotating the positioning bolt (14) to be clamped and limited with the gear (21);

s6, finding the position of a conductor, pulling the support (1) to enable a ground wire hook on the ground wire operating rod to be in contact with the conductor to be connected, and then pulling the support (1) to enable the ground wire hook to hook the conductor tightly to complete connection operation;

s7, winding up, pulling out the positioning bolt (14), slowly returning the ground wire rod barrel (10) to the horizontal position, and then folding the ground wire rod barrel (10) to the shortest state.

Technical Field

The invention belongs to the technical field of substation ground wire operation devices, and particularly relates to a substation ground wire moving operation device and a ground wire connection method.

Background

The grounding wire is usually assembled and disassembled in switching operation, the suspension point of the grounding wire of 500kV substation equipment is too high, the length of a corresponding 500kV grounding wire operating rod reaches 7.5 meters, the weight of the corresponding 500kV grounding wire operating rod is about 4kg, the weight of a three-in-one grounding wire fixed on a grounding wire hook reaches 12kg, and the arm and wrist force of operation and maintenance personnel in the operation process cannot master the balance of the grounding wire operating rod, so that 3-4 workers are needed to cooperate and consume a long time and only can cooperate with a high-altitude lift truck to work, however, manpower and material resources are wasted when the high-altitude lift truck is specially arranged to hang and disassemble the grounding wire, the efficiency is low, and a lot of inconvenience is caused.

Patent document No. CN206797450U discloses an auxiliary storage device for a ground wire, comprising: auxiliary frame body, snap ring and chucking device. The auxiliary frame body is used for supporting the ground wire insulating rod. The snap ring is arranged on the auxiliary frame body, and one end of the snap ring is movably connected with the auxiliary frame body. The clamping device is arranged on the auxiliary frame body and used for clamping the other end of the clamping ring. The ground wire storage trolley comprises a storage box body, a framework and the ground wire auxiliary storage device, the ground wire is wound by fixing the insulating rod through the ground wire auxiliary storage device, the wound ground wire is collected and stored in the storage trolley, and therefore the ground wire is convenient to store.

Disclosure of Invention

The invention aims to provide a substation grounding wire moving operation device and a grounding wire connecting method aiming at the problems in the prior art, the device is used for flexibly connecting and moving the grounding wire, is suitable for various operating conditions, and solves the problems that the conventional grounding wire is often disordered, distorted, dragged and damaged, inconvenient to use and inconvenient to store in use.

The technical scheme of the invention is as follows:

the utility model provides a transformer substation ground wire removes operating means, includes the support, two sides of support on be provided with two vertical support bars of interval respectively, the support on be provided with the handle, two vertical support bar on be provided with ground wire take-up stand rotating device respectively, the support on the fixed hydraulic stem elevating gear who is provided with ground wire strutting arrangement, adjustment ground wire strutting arrangement.

The ground wire take-up frame rotating device comprises a first supporting plate and a second supporting plate which are fixedly arranged between two vertical supporting rods on two sides, a spiral sleeve is fixedly arranged through the first supporting plate, a rotary crank arm in spiral connection with the spiral sleeve is arranged in the spiral sleeve, and one end of the rotary crank arm is movably connected with a first clamping plate on the inner side of the support 1 through a bearing; run through backup pad two pass through the bearing activity and be provided with the rotation axis, be located support 1 inboard rotation axis tip fixed connection grip block two, rotation axis other end fixed connection ground wire frame swiveling wheel, backup pad one and two positions of backup pad correspond the setting and the central line coincides mutually, grip block one and two positions of grip block correspond the setting and the central line coincides mutually, the device not only is used for daily taking in of ground wire to deposit, still can adopt special rotatory turning arm, receive and release the ground wire through artifical or electronic mode, uses manpower sparingly, raises the efficiency.

The ground wire supporting device comprises a ground wire rod barrel rotating seat and a ground wire rod barrel movably arranged on the ground wire rod barrel rotating seat, the ground wire rod barrel rotating seat is movably arranged in the middle of a second fixed shaft in a ring mode through a bearing, the second fixed shaft is fixedly arranged on a support, and the ground wire rod barrel is connected with a hydraulic rod lifting device.

Specifically, the hydraulic rod lifting device comprises a first fixed shaft fixedly arranged on the support, a hydraulic rod rotating seat is arranged in the middle of the first fixed shaft through a bearing ring, a hydraulic rod barrel is movably arranged on the hydraulic rod rotating seat, a hydraulic telescopic rod is arranged in the hydraulic rod barrel, and the hydraulic telescopic rod is fixedly connected with the ground wire rod barrel.

Specifically, ground wire strutting arrangement still including the activity set up on the second fixed axle with ground wire pole section of thick bamboo rotation seat fixed connection's gear, tooth position corresponding gear is provided with the location bolt, the tip of location bolt be provided with the flat block portion of tooth engaged with of gear tooth, the location bolt on close to flat block portion department fixed be provided with the nut, the location bolt on still be provided with the spring, spring one end nut of tightly pushing up.

Specifically, the support on set up the boss that a plurality of even intervals set up, all bosses pass through connecting rod through connection, the location bolt pass through the boss and correspond with the tooth of the gear tooth.

Specifically, the inner side of the bracket is fixedly provided with two symmetrical reinforcing support rods, and the two ends of the first fixing shaft and the two ends of the second fixing shaft are fixedly arranged on the two reinforcing support rods.

The adjustable ground wire rod barrel comprises a plurality of telescopic barrels, sliding block strips are symmetrically arranged on the side edge of the outer wall of the innermost telescopic barrel, a matched sliding groove is correspondingly formed in the inner wall of the other adjacent telescopic barrel and the sliding block strip connected with the telescopic barrel, a plurality of uniform positioning holes are formed in each section of the telescopic barrel, the positioning holes are limited in position through limiting bolts, positioning holes are formed in at least one side of the telescopic barrel as required, the two symmetrical sides are arranged at the same time, the stability is higher, the adjacent telescopic barrels are connected through sliding blocks and sliding grooves in a sliding mode, and a ground wire operating rod is fixed to the upper end of the ground wire rod barrel in a fixed buckling mode.

Specifically, the universal wheels convenient to move are respectively installed at four corners of the bottom of the support, so that the ground wire can be transported more conveniently, and the ground wire can be hung more firmly.

A method for connecting ground wires by using the substation ground wire mobile operation device, comprising the following steps:

s1, fixing a ground wire frame, namely placing the ground wire frame on a first clamping plate and a second clamping plate, and rotating and adjusting a rotary crank arm to enable the clamping plate at the end part of the rotary crank arm to move towards the second clamping plate to fix the ground wire frame;

s2, placing the ground wire, wherein the rotary wheel ground wire frame of the rotary ground wire frame rotates to pull the ground wire to easily place the ground wire;

s3, placing a ground wire, grounding the grounding end of the ground wire, and placing the conductor end into the top of the ground wire operating rod for fixing;

s4, adjusting the height and the gradient of the ground wire rod barrel;

s5, pulling out the positioning bolt to enable the positioning bolt to be away from the gear, starting a hydraulic rod lifting device, enabling the ground wire rod barrel to rise under the action of the hydraulic telescopic rod until the ground wire rod barrel can be in contact with a conductor to be connected in height, and rotating the positioning bolt to be clamped and limited with the gear;

s6, finding the position of a conductor, pulling the support to enable the ground wire hook on the ground wire operating rod to be in contact with the conductor to be connected, and then pulling the support to enable the ground wire hook to hook the conductor tightly to complete connection operation;

and S7, taking up the wire, pulling out the positioning bolt, slowly returning the ground wire rod barrel to the horizontal position, and then folding the ground wire rod barrel to the shortest state.

With the continuous improvement of power supply reliability of power enterprises, the occurrence of various misoperation accidents is reduced or avoided, and the prevention of personnel safety accidents becomes a key point of current work.

When a transformer substation carries out maintenance tasks, the temporary grounding wire is a life line for ensuring the personal safety of workers, but also causes the main root of human equipment accidents and personal casualty accidents. Accidents with a temporary grounding wire or a temporary grounding wire feeding point in the power system occur occasionally, and are listed as the head of serious misoperation accidents. At present, no grounding wire connection and access integrated device exists, and the research and design aspects such as how to connect grounding wires and how to store grounding wires are designed individually and specifically, and at present, no research and disclosure on the integrated device exists.

Even there is the design device that openly accomodate ground wire at present, it is disclosed mostly that the structure is complicated, uses mostly inconvenient, can not satisfy the use needs.

The invention has the beneficial effects that: the device is characterized in that a ground wire take-up stand rotating device, a ground wire supporting device and a hydraulic rod lifting device for adjusting the ground wire supporting device are arranged on a movable support, so that the ground wire take-up stand rotating device, the ground wire supporting device and the hydraulic rod lifting device form a movable whole, and the problems of wire disorder, distortion, dragging damage, inconvenience in use and inconvenience in storage of the conventional ground wire in use are well solved.

The ground wire take-up stand rotating device comprises a rotary crank arm which is in spiral connection with a spiral sleeve, the rotary crank arm is movably connected with a first clamping plate through a bearing, a ground wire stand rotating wheel is connected with a second clamping plate through a rotating shaft, the second clamping plate at the end part of the rotary crank arm is moved to fix the ground wire stand and the stability of a wire stand is adjustable, in addition, the rotation of a rotary hand wheel can drive the ground wire stand to rotate, so that the ground wire stand is adjusted, supported and contained, the ground wire and the like are achieved, the use is very convenient, reliable and flexible to move, the ground wire take-up stand rotating device is suitable for various operating conditions, and particularly is used in a complex field.

The ground wire supporting device comprises a ground wire rod barrel rotating seat 11, a ground wire rod barrel arranged on the ground wire rod barrel rotating seat, a gear fixedly connected with the ground wire rod barrel rotating seat, and a positioning bolt which can be clamped and limited with the gear, and the ground wire supporting device can be manually adjusted, is convenient to use, can be adjusted according to the height requirement, and has higher position accuracy, so that the ground wire lapping efficiency can be improved, and the working efficiency can be improved.

Drawings

FIG. 1 is a schematic view of the structure of an apparatus provided in example 1;

FIG. 2 is a schematic top view of the structure of FIG. 1;

fig. 3 is a schematic structural view of the ground wire barrel provided in embodiment 2;

fig. 4 is a partial enlarged view of the middle part of fig. 2.

The ground wire fixing device comprises a support 1, universal wheels 2, a vertical supporting rod 3, a first supporting plate 4, a rotary crank arm 5, a first clamping plate 6, a second clamping plate 7, a hydraulic rod rotating seat 8, a hydraulic rod barrel 9, a ground wire rod barrel 10, a ground wire rod barrel 11, a reinforcing block 12, a connecting rod 13, a positioning bolt 14, a handle 15, a spiral sleeve 16, a second supporting plate 17, a ground wire frame rotating wheel 18, a first fixing shaft 19, a second fixing shaft 20, a gear 21, a hydraulic telescopic rod 22, a reinforcing supporting rod 23, a first telescopic cylinder 10-1, a second telescopic cylinder 10-2, a third telescopic cylinder 10-3, a sliding block strip 10-4, a sliding groove 10-5, a positioning hole 10-6, a nut 24 and a spring 25.

Detailed Description

The technical solution of the present invention is described in detail below with reference to the accompanying drawings and the detailed description.

One kind of the medicine.

Example 1

As shown in fig. 1, the structure schematic diagram of the grounding wire moving operation device for the transformer substation provided by this embodiment is shown, and fig. 2 is the schematic diagram of the top view structure of fig. 1, and includes a support 1, universal wheels 2 convenient to move are respectively installed at four corners of the bottom of the support 1, so that not only can the grounding wire be transported more conveniently, but also the grounding wire can be suspended more firmly. Two vertical supporting rods 3 are arranged on two side faces of the support 1 at intervals respectively, a handle 15 is arranged on the support 1, two ground wire take-up frame rotating devices are arranged on the two vertical supporting rods 3 respectively, and a ground wire supporting device and a hydraulic rod lifting device for adjusting the ground wire supporting device are fixedly arranged on the support.

The detailed structure of the ground wire take-up stand rotating device is disclosed in the embodiment, as can be seen from fig. 1 and 2, the ground wire take-up stand rotating device comprises a first supporting plate 4 and a second supporting plate 17 which are fixedly arranged between two vertical supporting rods 3 at two sides, a spiral sleeve 16 is fixedly arranged through the first supporting plate 4, a rotary crank arm 5 in spiral connection with the spiral sleeve 16 is arranged in the spiral sleeve 16, and one end of the rotary crank arm 5 is movably connected with a first clamping plate 6 positioned at the inner side of a support 1 through a bearing; run through backup pad two 17 be provided with the rotation axis through the bearing activity, be located 1 inboard rotation axis tip fixed connection grip block two 7, rotation axis other end fixed connection ground wire frame swiveling wheel 18, backup pad one 4 and backup pad two 17 position correspond to set up and the central line coincides mutually, grip block one 6 and two 7 position of grip block correspond to set up and the central line coincides mutually, the device not only is used for daily taking in of ground wire to deposit, still can adopt special rotatory turning arm, receive and release the ground wire through artifical or electronic mode, use manpower sparingly, raise the efficiency.

The embodiment also discloses a detailed structural schematic diagram of the ground wire supporting device, which comprises a ground wire rod barrel rotating seat 11 and a ground wire rod barrel 10 movably arranged on the ground wire rod barrel rotating seat 11, wherein the ground wire rod barrel rotating seat 11 is movably arranged in the middle of a second fixed shaft 20 through a bearing, the second fixed shaft 20 is fixedly arranged on the support 1, and the ground wire rod barrel 10 is connected with a hydraulic rod lifting device. Ground wire strutting arrangement still including the activity set up on second fixed axle 20 with ground wire pole section of thick bamboo rotation seat 11 fixed connection's gear 21, tooth position corresponding gear 21 is provided with location bolt 14, the tip of location bolt 14 be provided with the flat block portion with the tooth looks meshing of gear 21, location bolt 14 on close to flat block portion department fixed nut 24 that is provided with, location bolt 14 on still be provided with spring 25, spring 25 one end tightly push up nut 24, when pulling location bolt 14 backward, the gear is kept away from to the spring, gear 21 loses the holding power and just can rotate, loosens location bolt 14, location bolt 14 is supplementary block gear 21 through flat block portion, nut 24 forward under spring 25 spring action.

The embodiment of the invention also discloses a hydraulic rod lifting device, which comprises a first fixed shaft 19 fixedly arranged on the support 1, wherein a hydraulic rod rotating seat 8 is arranged in the middle of the first fixed shaft 19 through a bearing ring, a hydraulic rod barrel 9 is movably arranged on the hydraulic rod rotating seat 8, a hydraulic telescopic rod 22 is arranged in the hydraulic rod barrel 9, and the hydraulic telescopic rod 22 is fixedly connected with the ground wire rod barrel 10.

In order to support the positioning pin 14, in the embodiment, a plurality of reinforcing blocks 12 are arranged on the bracket at regular intervals, all the reinforcing blocks 12 are connected in a penetrating manner through a connecting rod 13, and the positioning pin 14 penetrates through the reinforcing blocks 12 and corresponds to teeth of the gear 21.

Further, the device is reinforced, two symmetrical reinforcing support rods 23 are fixedly arranged on the inner side of the support 1, and two ends of the first fixing shaft 19 and two ends of the second fixing shaft 20 are fixedly arranged on the two reinforcing support rods 23.

A method for connecting ground wires by using the substation ground wire mobile operation device, comprising the following steps:

s1, fixing a ground wire frame, placing the ground wire frame on a first clamping plate 6 and a second clamping plate 17, and rotating and adjusting a rotating crank arm 5 to enable the first clamping plate 6 at the end part to move towards the second clamping plate 17 to fix the ground wire frame;

s2, placing the ground wire, wherein the ground wire frame of the rotating wheel 18 of the rotary ground wire frame rotates to pull the ground wire to easily place the ground wire;

s3, placing a ground wire, grounding the grounding end of the ground wire, and placing the conductor end into the top of the ground wire operating rod for fixing;

s4, adjusting the ground wire rod barrel 10, and adjusting the height of the ground wire rod barrel through adjusting the inclination of the ground wire rod barrel, wherein the device has the defects that the length of the ground wire rod barrel 10 is required to be slightly long, and the transportation is inconvenient;

s5, pulling out the positioning bolt 14 to enable the positioning bolt to be separated from the gear 21, starting a hydraulic rod lifting device, enabling the ground wire rod barrel 10 to rise under the action of a hydraulic telescopic rod 22 until the ground wire rod barrel can be contacted with a conductor to be connected in height, and loosening the positioning bolt 14 to be clamped and limited with the gear 21;

s6, finding the position of a conductor, pulling the support 1 to enable a ground wire hook on the ground wire operating rod to be in contact with the conductor to be connected, and then pulling the support 1 to enable the ground wire hook to hook the conductor tightly to complete connection operation;

and S7, taking up the wire, pulling out the positioning bolt 14, slowly returning the ground wire rod barrel 10 to the horizontal position, and then folding the ground wire rod barrel 10 to the shortest state.

Example 2

In order to solve the disadvantage of embodiment 1, that is, the length of the ground wire rod barrel is not adjustable, in this embodiment, the ground wire rod barrel 10 is designed as an adjustable rod barrel, which includes three telescopic barrels, namely a first telescopic barrel 10-1, a second telescopic barrel 10-2, and a third telescopic barrel 10-3, sliding block strips 10-4 are symmetrically arranged on the side edge of the outer wall of the innermost first telescopic barrel 10-1, matching sliding grooves 10-5 are correspondingly arranged on the inner wall of the adjacent second telescopic barrel 10-2 and the sliding block strips 10-4, a plurality of uniform positioning holes 10-6 are arranged on each telescopic barrel, the positioning holes 10-6 are position-limited by limiting bolts, the two symmetrical sides are arranged at the same time, the stability is stronger, the adjacent telescopic barrels are connected in a sliding manner through the sliding blocks and the sliding grooves, the ground wire operating rod may be fixed to the upper end of the ground wire barrel 10 by means of a fixing clip.

In the embodiment, when the height of the ground wire rod barrel 10 is adjusted, the handheld end of the ground wire operating rod is plugged into the telescopic barrel at the innermost side of the ground wire rod barrel 10, the limiting bolt 10-6 is pulled out, the multiple telescopic barrels are pulled out to reach the installation height, and the limiting bolt is inserted into the positioning hole 10-6 with the corresponding height; in the wire winding step, the positioning bolt 14 is pulled out, the ground wire rod barrel 10 slowly returns to the horizontal position, then the limiting bolt 10-6 of the ground wire rod barrel 10 is pulled out, and the ground wire rod barrel 10 is folded to the shortest state.

Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.