Overhead conductor grounding device and overhead conductor grounding method

Abstract

The invention relates to the technical field of overhead conductor grounding, and discloses an overhead conductor grounding device and an overhead conductor grounding method. The overhead conductor grounding device comprises a stay wire clamp mechanism which can clamp an overhead conductor by means of an unmanned aerial vehicle; the pulley is fixed on one side of the staying wire clamp mechanism; the ground wire connecting piece female sleeve is fixed on one side of the standing wire clamp mechanism; the ground wire connecting piece male head can be clamped and matched with the ground wire connecting piece female sleeve, and the ground wire connecting piece male head is used for connecting a pull rope and a ground wire; the take-up and pay-off mechanism is used for taking up and paying off a pull rope and a ground wire, the end, away from the pull rope, of the ground wire is grounded, the end, away from the ground wire connecting piece male head, of the pull rope penetrates through the ground wire connecting piece female sleeve and bypasses the pulley to be connected with the balance weight, and the pull rope is used for pulling the ground wire connecting piece male head upwards to be clamped with the ground wire connecting piece female sleeve so as to achieve grounding of the overhead conductor. Manual tower climbing can be replaced for conducting wire grounding operation, and the problems of high risk and low efficiency of manual tower climbing operation are solved.

Description

Technical Field

[0001] The invention relates to the technical field of overhead conductor grounding, and in particular to an overhead conductor grounding device and an overhead conductor grounding method. Background Art

[0002] During the construction, maintenance and accident handling of power lines, testing electricity and installing working grounding wires are important technical means to ensure the personal safety of maintenance personnel, equipment safety and power grid production safety. The four technical measures to ensure safety are: power outage, testing electricity, grounding, hanging signs and installing barriers (fences), among which grounding is the most important task. In the work of overhead lines in distribution networks, grounding means hanging (installing) working grounding wires at the corresponding positions of overhead lines.

[0003] At present, conductor grounding still relies on manual work by climbing up iron towers tens of meters high and holding long insulating rods. This involves the risk of working at high altitudes and has extremely low operating efficiency. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide an overhead conductor grounding device and an overhead conductor grounding method, which can replace manual tower climbing to perform conductor grounding operations and solve the high risk and low efficiency problems of manual tower climbing operations.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] In one aspect, an overhead conductor grounding device is provided, comprising:

[0007] A line-holding clamp mechanism, which can be moved into the air by means of a drone and clamp the overhead wire;

[0008] A pulley, fixed to one side of the line-parking clamp mechanism along a first direction, and a rotation axis of the pulley extends along the first direction;

[0009] A ground wire connector female sleeve, fixed to a side of the line clamp mechanism where the pulley is installed and located obliquely below the pulley;

[0010] A ground wire connector male head, which can be snap-fitted with the ground wire connector female sleeve, and is used to connect the pull rope and the ground wire;

[0011] A wire-retracting and -releasing mechanism, wherein the wire-retracting and -releasing mechanism is used to retract and release a pull rope and a ground wire, wherein one end of the ground wire away from the pull rope is grounded, and one end of the pull rope away from the male head of the ground wire connector passes through the female sleeve of the ground wire connector and bypasses the pulley to be connected to the counterweight, and the pull rope is used to pull the male head of the ground wire connector upwards until it is engaged with the female sleeve of the ground wire connector to achieve grounding of the overhead wire.

[0012] As a further solution of the overhead conductor grounding device, the line clamp mechanism includes:

[0013] A mounting plate, the pulley and the ground wire connector female sleeve are mounted on one side of the mounting plate along the first direction;

[0014] A hanging part, connected to the mounting plate and used for hanging on the drone;

[0015] An elastic wire clamp, the elastic wire clamp comprising a U-shaped frame with an opening facing downward, a clamping plate and a first elastic portion, the U-shaped frame being fixed to the bottom of the mounting plate, two clamping plates being arranged in the U-shaped frame along a second direction at intervals, each of the clamping plates being connected to a side plate of the U-shaped frame along the second direction through a first elastic portion, and the first direction being perpendicular to the second direction;

[0016] When the overhead wire is inserted between the two clamping plates, the first elastic portion causes the clamping plates to always have a tendency to move toward the overhead wire.

[0017] As a further solution of the overhead wire grounding device, the overhead wire grounding device also includes a counterweight suspension and sliding assembly, which is connected to the line clamp mechanism and is used to suspend the counterweight and push the counterweight out to make it suspended when the overhead wire is clamped between the two clamps.

[0018] As a further solution of the overhead conductor grounding device, both sides of the hanging part are connected to the mounting plate and extend downward to the outside of the U-shaped frame; the first elastic part includes a guide rod and a first spring, one end of the guide rod is fixedly connected to the clamping plate, and the other end passes through the side plate of the U-shaped frame and is fixedly connected to the hanging part, the first spring is sleeved on the guide rod, and the two ends of the first spring are respectively abutted against the clamping plate and the corresponding side plate of the U-shaped frame;

[0019] The counterweight suspension pushing assembly includes a push rod and a supporting part, the push rod is fixed on one side of the suspension part, the supporting part is fixed on one side of the mounting plate and adjacent to the push rod, the counterweight is suspended on the supporting part, when the overhead wire is clamped between the two clamping plates, the clamping plates squeeze the first spring to drive the guide rod to push the two sides of the suspension part to move away from the mounting plate, and the suspension part pushes the push rod to push the counterweight away from the supporting part, so that the counterweight is in a suspended state.

[0020] As a further scheme of the overhead wire grounding device, the counterweight includes a plumb bob, an intermediate connecting part, a connecting rod and a hanging ring, the plumb bob is connected to the connecting rod through the intermediate connecting part, the hanging ring is fixed on the side of the connecting rod away from the plumb bob, the supporting part includes a vertically connected fixing plate and a support plate, the fixing plate is fixedly connected to one side of the mounting plate along the second direction, the hanging ring is connected to the pull rope, the connecting rod is used to be suspended on the support plate, and the push rod is used to selectively push the connecting rod away from the support plate.

[0021] As a further scheme of the overhead wire grounding device, it also includes a first pull rope guide portion and a second pull rope guide portion fixed on the mounting plate, the ground wire connector female sleeve and the first pull rope guide portion are inclined in the same direction, one end of the first pull rope guide portion is connected to the ground wire connector female sleeve, and the other end extends to the vicinity of the pulley, the second pull rope guide portion is inclined, the first pull rope guide portion and the second pull rope guide portion are arranged at an angle not greater than 90°, one end of the pull rope is connected to the ground wire connector male head, and the other end passes through the ground wire connector female sleeve, the first pull rope guide portion, then bypasses the pulley and passes through the second pull rope guide portion to be connected to the counterweight, and the entrance end of the ground wire connector female sleeve and the second pull rope guide portion respectively extend to the outside of the mounting plate.

[0022] As a further solution of the overhead conductor grounding device, the outlet end of the ground wire connector female sleeve is a conical structure, the inlet end of the ground wire connector female sleeve is a cylindrical structure, the inner wall spacing ring of the inlet end of the ground wire connector female sleeve is provided with a plurality of circular mounting holes, a second spring and a ball are installed in the mounting hole, the diameter of the ball is smaller than the diameter of the mounting hole, the ball part protrudes from the mounting hole, the outer wall ring of the inlet end of the ground wire connector female sleeve is provided with a blocking cover, and the blocking cover is fixed at the inlet of the ground wire connector female sleeve The outer wall of the end is used to block the end of the mounting hole away from the ball, and the two ends of the second spring are respectively abutted against the ball and the blocking cover; the end of the male head of the ground wire connector connected to the pull rope is the conical structure matched with the outlet end of the female sleeve of the ground wire connector, and the end of the male head of the ground wire connector connected to the ground wire is a cylindrical structure, and the outer circumference of the cylindrical structure is provided with a groove corresponding to the ball ring, and when the male head of the ground wire connector is plugged into the female sleeve of the ground wire connector, the ball is stuck in the groove.

[0023] As a further solution of the overhead wire grounding device, the wire retracting and releasing mechanism has two retracting and releasing wheels, each of which has two retracting and releasing grooves spaced apart along its axial direction, and the pull rope and the ground wire are respectively wound in one of the retracting and releasing grooves on one of the retracting and releasing wheels.

[0024] On the other hand, a method for grounding an overhead conductor is provided, comprising the following steps:

[0025] (1) Provide the overhead conductor grounding device, the pull rope and the ground wire, wind the ground wire on the wire retracting and releasing mechanism, and connect one end of the ground wire to the ground, while the other end is connected to the male end of the ground wire connector; connect one end of the pull rope to the male end of the ground wire connector, and pass the other end through the female sleeve of the ground wire connector and then pass around the pulley to connect to the counterweight;

[0026] (2) Using a drone to suspend the line clamp mechanism, the line clamp mechanism, the pulley and the ground wire connector female sleeve are pulled up until the line clamp mechanism clamps the overhead wire;

[0027] (3) Pull the male end of the ground wire connector by pulling the rope so that the male end of the ground wire connector rises until it is engaged with the female end of the ground wire connector.

[0028] As a further solution of the overhead wire grounding method, the wire retracting and releasing mechanism includes a first retracting and releasing wheel and a second retracting and releasing wheel, the first retracting and releasing wheel has a first retracting and releasing groove and a second retracting and releasing groove arranged at intervals along its axial direction, the second retracting and releasing wheel has a third retracting and releasing groove and a fourth retracting and releasing groove arranged at intervals along its axial direction, the pull rope includes a guide rope and a load-bearing rope, and the overhead wire grounding method specifically includes the following steps:

[0029] (1) Wind the load-bearing rope in the first retractable groove along direction A, and after grounding the ground wire, wind it in the third retractable groove along direction A, and connect one end of the load-bearing rope to the guide rope, and the other end to the ground wire through the male connector of the ground wire connector;

[0030] (2) Pass one end of the guide rope away from the load-bearing rope through the ground wire connector sleeve and then around the pulley to connect with the counterweight;

[0031] (3) Using a drone to suspend and raise the line clamp mechanism, the pulley and the ground wire connector female sleeve to just above the overhead wire, the drone descends and releases the line clamp mechanism, so that the line clamp mechanism is clamped on the overhead wire by its own gravity;

[0032] (4) Rotate the first retractable wheel to release the leader rope. When the counterweight falls to the ground, remove the counterweight and wind the leader rope in the second retractable groove along direction B. The direction A is opposite to the direction B. At this time, the first retractable wheel tightens the leader rope 21 and releases the load-bearing rope 22 at the same time.

[0033] (5) When one end of the load-bearing rope connected to the guide rope moves to the ground, the load-bearing rope is wound in the fourth retracting groove along direction B, and the second retracting wheel tightens the load-bearing rope while releasing the ground wire, so that the male head of the ground wire connector and the female sleeve of the ground wire connector are clamped and fixed.

[0034] Beneficial effects:

[0035] The present invention connects the pull rope to the ground wire, fixes the pulley and the ground wire connector female sleeve on the line clamp mechanism, and the pull rope passes through the ground wire connector female sleeve and bypasses the pulley to connect with the counterweight. Under the cooperation of the counterweight and the retractable wire mechanism, the ground wire connector male head and the ground wire connector female sleeve can be clamped by the pull rope, thereby realizing the grounding of the overhead wire. Compared with the prior art, the overhead wire grounding device of the present invention can replace manual tower climbing to perform wire grounding operations, solving the high risk and low efficiency problems of manual tower climbing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0037] Figure 1 It is a schematic diagram of the overhead conductor grounding device (first state) according to an embodiment of the present invention.

[0038] Figure 2 It is a schematic diagram of assembling the line clamp mechanism, the pulley, the ground wire connector female sleeve and the ground wire connector male head according to another embodiment of the present invention.

[0039] Figure 3 It is a schematic diagram of the counterweight suspension displacement assembly described in an embodiment of the present invention.

[0040] Figure 4 It is a schematic diagram of a counterweight suspended on a supporting portion according to an embodiment of the present invention.

[0041] Figure 5 It is a schematic diagram of the wire-retracting and -releasing mechanism described in an embodiment of the present invention.

[0042] Figure 6 It is a schematic diagram of the overhead conductor grounding device (second state) according to an embodiment of the present invention.

[0043] Figure 7 It is a schematic diagram of the overhead conductor grounding device (third state) according to an embodiment of the present invention.

[0044] In the figure:

[0045] 1. Overhead conductor; 2. Pull rope; 21. Pilot rope; 22. Load-bearing rope; 3. Ground wire; 4. Iron tower;

[0046] 100, line clamp mechanism; 110, mounting plate; 120, hanging part; 130, elastic line clamp; 131, U-shaped frame; 132, clamping plate; 133, first elastic part; 1331, guide rod; 1332, first spring; 134, arc-shaped pressure plate; 200, pulley; 300, ground wire connector female sleeve; 400, ground wire connector male head; 500, line retracting and releasing mechanism; 510, retracting and releasing wheel; 520, retracting and releasing groove; 600, counterweight; 610, plumb bob; 620, middle connecting part; 630, connecting rod; 640, hanging ring; 700, counterweight suspension push assembly; 710, push rod; 720, supporting part; 721, fixing plate; 722, supporting plate; 800, first pull rope guide part; 900, second pull rope guide part. DETAILED DESCRIPTION

[0047] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0048] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0050] In the description of this embodiment, if the terms "upper", "lower", "left", "right" and other directions or positional relationships appear, they are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, if the terms "first", "second", etc. appear, they are only used to distinguish in the description and have no special meaning.

[0051] like Figures 1 to 5 As shown, this embodiment provides an overhead conductor grounding device, including a line clamp mechanism 100, a pulley 200, a ground wire connector female sleeve 300, a ground wire connector male head 400 and a wire retracting and releasing mechanism 500.

[0052] The line clamp mechanism 100 can be moved into the air with the help of a drone and clamp the overhead wire 1;

[0053] The pulley 200 is fixed to one side of the line-parking clamp mechanism 100 along the first direction, and the rotation axis of the pulley 200 extends along the first direction.

[0054] The ground wire connector female sleeve 300 is fixed to one side of the line clamp mechanism 100 where the pulley 200 is installed and is located obliquely below the pulley 200 .

[0055] The ground wire connector male head 400 can be snap-fitted with the ground wire connector female sleeve 300 , and the ground wire connector male head 400 is used to connect the pull rope 2 and the ground wire 3 .

[0056] The wire retracting and releasing mechanism 500 is used to retract and release the pull rope 2 and the ground wire 3. The end of the ground wire 3 away from the pull rope 2 is grounded. The end of the pull rope 2 away from the ground wire connector male head 400 passes through the ground wire connector female sleeve 300 and bypasses the pulley 200 to connect with the counterweight 600. The pull rope 2 is used to pull the ground wire connector male head 400 upwards until it is engaged with the ground wire connector female sleeve 300 to achieve grounding of the overhead wire 1.

[0057] In this embodiment, the pull rope 2 is connected to the ground wire 3, the pulley 200 and the ground wire connector female sleeve 300 are fixed on the line clamp mechanism 100, the pull rope 2 passes through the ground wire connector female sleeve 300 and bypasses the pulley 200 to be connected to the counterweight 600. With the cooperation of the counterweight 600 and the retractable wire mechanism 500, the ground wire connector male head 400 can be clamped with the ground wire connector female sleeve 300 through the pull rope 2, thereby realizing the grounding treatment of the overhead wire 1.

[0058] Compared with the prior art, the overhead conductor grounding device of this embodiment can replace manual tower climbing to perform conductor grounding operations, thereby solving the high risk and low efficiency problems of manual tower climbing operations.

[0059] Furthermore, if Figure 2 As shown, the line clamp mechanism 100 includes a mounting plate 110, a hanging part 120 and an elastic clamp 130, the pulley 200 and the ground wire connector female sleeve 300 are installed on one side of the mounting plate 110 along the first direction, the hanging part 120 is connected to the mounting plate 110, and is used to be suspended on the drone; the elastic clamp 130 includes a U-shaped frame 131 with an opening facing downward, a clamping plate 132 and a first elastic part 133, the U-shaped frame 131 is fixed to the bottom of the mounting plate 110, two clamping plates 132 are arranged in the U-shaped frame 131 along the second direction, each clamping plate 132 is connected to the side plate of the U-shaped frame 131 along the second direction through a first elastic part 133, and the first direction is perpendicular to the second direction (the second direction is Figure 2 when the overhead wire 1 is inserted between the two clamps 132, the first elastic portion 133 causes the clamp 132 to always have a tendency to move toward the overhead wire 1.

[0060] It can be understood that the hanging part 120 is used to be suspended on the drone, the clamp 132 is arranged between the two side plates of the U-shaped frame 131, and the first elastic part 133 is arranged between the clamp 132 and the side plate. An elastic clamp groove can be formed between the two clamps 132. When the overhead wire 1 is facing the elastic clamp groove, the drone releases the overhead wire grounding device, so that the overhead wire 1 can be clamped with the elastic clamp groove by squeezing the clamp 132.

[0061] Furthermore, the lower ends of the two clamping plates 132 may be configured as guide slopes inclined toward the side plates of the U-shaped frame 131 , so that the overhead wire 1 may be smoothly inserted between the two clamping plates 132 .

[0062] In this embodiment, the overhead conductor grounding device further includes a counterweight suspension push assembly 700, such as Figure 2 and Figure 3 As shown, the counterweight suspension push assembly 700 is connected to the line clamp mechanism 100, and is used to suspend the counterweight 600 and push the counterweight 600 out to make the counterweight 600 suspended in the air when the overhead wire 1 is clamped between the two clamping plates 132. When this structural design is adopted, the counterweight 600 can be suspended on the counterweight suspension push assembly 700 while the drone pulls the overhead wire grounding device to rise, and the counterweight 600 is automatically pushed out to make the counterweight 600 suspended in the air when the overhead wire 1 is clamped between the two clamping plates 132, so that the pull rope 2 can be kept in a tensioned state when the pull rope 2 is subsequently released, thereby improving the convenience of operation.

[0063] Furthermore, if Figure 2As shown, both sides of the suspension part 120 are connected to the mounting plate 110 and extend downward to the outside of the U-shaped frame 131; the first elastic part 133 includes a guide rod 1331 and a first spring 1332, one end of the guide rod 1331 is fixedly connected to the clamping plate 132, and the other end passes through the side plate of the U-shaped frame 131 and is fixedly connected to the suspension part 120, the first spring 1332 is sleeved on the guide rod 1331, and the two ends of the first spring 1332 are respectively abutted against the clamping plate 132 and the corresponding side plate of the U-shaped frame 131; the counterweight suspension push assembly 700 includes a push rod 7 10 and the supporting part 720, the push rod 710 is fixed on one side of the hanging part 120, the supporting part 720 is fixed on one side of the mounting plate 110 and adjacent to the push rod 710, the counterweight 600 is suspended on the supporting part 720, and when the overhead wire 1 is inserted between the two clamping plates 132, the clamping plates 132 squeeze the first spring 1332 to drive the guide rod 1331 to push the two sides of the hanging part 120 to move away from the mounting plate 110, and the hanging part 120 pushes the push rod 710 to push the counterweight 600 away from the supporting part 720, so that the counterweight 600 is in a suspended state.

[0064] Before the drone releases the overhead wire grounding device, the counterweight 600 connected to the pull rope 2 is always suspended on the supporting part 720 to prevent the counterweight 600 from affecting the flight stability of the drone during flight. The push rod 710, the supporting part 720 and the line clamp mechanism 100 cooperate with each other. When the drone releases the overhead wire grounding device, the clamping of the overhead wire 1 and the line clamp mechanism 100 can automatically trigger the separation of the counterweight 600 from the supporting part 720 without manual operation, thereby improving the convenience of the grounding operation of the overhead wire 1.

[0065] Furthermore, if Figure 4 As shown, the counterweight 600 includes a plumb bob 610, an intermediate connecting portion 620, a connecting rod 630 and a hanging ring 640. The plumb bob 610 is connected to the connecting rod 630 via the intermediate connecting portion 620. The hanging ring 640 is fixed to the side of the connecting rod 630 away from the plumb bob 610. The supporting portion 720 includes a vertically connected fixing plate 721 and a supporting plate 722. The fixing plate 721 is fixedly connected to one side of the mounting plate 110 along the second direction. The hanging ring 640 is connected to the pull rope 2. The connecting rod 630 is suspended on the supporting plate 722. The push rod 710 is used to selectively push the connecting rod 630 away from the supporting plate 722.

[0066] In order to improve the suspension stability of the counterweight 600 when the drone is flying with the overhead wire grounding device suspended, the present embodiment can also improve the structure of the supporting portion 720. For example, the support plate 722 includes two support blocks spaced apart from each other, the two support blocks are spaced apart from each other and vertically connected to the fixing plate 721, when the connecting rod 630 is located between the two support blocks, the two support blocks have a certain clamping effect on the connecting rod 630, and the push rod 710 can overcome the clamping force to push the connecting rod 630 away from the support plate 722.

[0067] In this embodiment, there are two supporting plates 722 , which are arranged at intervals and are respectively used to suspend the two ends of the connecting rod 630 , which can further improve the suspension stability of the counterweight 600 .

[0068] Exemplarily, the distance between the two support blocks decreases first, then gradually increases, and finally remains stable from the entrance toward the fixed plate 721, which can further improve the suspension stability of the counterweight 600 and the smoothness of the separation of the counterweight 600 and the support plate 722.

[0069] like Figure 2 As shown, the overhead wire grounding device of this embodiment also includes a first pull rope guide portion 800 and a second pull rope guide portion 900 fixed on the mounting plate 110, the ground wire connector female sleeve 300 and the first pull rope guide portion 800 are inclined in the same direction, one end of the first pull rope guide portion 800 is connected to the ground wire connector female sleeve 300, and the other end extends to the adjacent pulley 200, the second pull rope guide portion 900 is inclined, and the first pull rope guide portion 800 and the second pull rope guide portion 900 are arranged at an angle not greater than 90°, one end of the pull rope 2 is connected to the ground wire connector male head 400, and the other end passes through the ground wire connector female sleeve 300, the first pull rope guide portion 800, bypasses the pulley 200 and passes through the second pull rope guide portion 900 to be connected to the counterweight 600, and the entrance end of the ground wire connector female sleeve 300 and the second pull rope guide portion 900 respectively extend to the outside of the mounting plate 110.

[0070] By providing the first pull rope guide 800 and the second pull rope guide 900, the movement of the pull rope 2 can be guided, and at the same time, one end of the pull rope 2 can be prevented from being too close to the other end of the pull rope 2 when the counterweight 600 descends, thereby preventing the pull rope 2 from becoming tangled. The first pull rope guide 800 and the second pull rope guide 900 can be a tubular structure or a U-shaped groove structure.

[0071] Furthermore, the elastic wire clamp 130 also includes two arc-shaped pressure plates 134, which are spaced and symmetrically arranged between the two clamping plates 132. When the overhead wire 1 is clamped between the two clamping plates 132, the convex surfaces of the two arc-shaped pressure plates 134 and the opposite surfaces of the two clamping plates 132 are in contact with the outer periphery of the overhead wire 1, thereby further improving the clamping stability between the overhead wire 1 and the elastic wire clamp 130.

[0072] In order to improve the grounding stability, in this embodiment, the outlet end of the ground wire connector female sleeve 300 is a conical structure, the inlet end of the ground wire connector female sleeve 300 is a cylindrical structure, the inner wall spacer ring of the inlet end of the ground wire connector female sleeve 300 is provided with a plurality of circular mounting holes, and a second spring and a ball are installed in the mounting hole. The diameter of the ball is smaller than the diameter of the mounting hole, and the ball part protrudes from the mounting hole. The outer wall ring of the inlet end of the ground wire connector female sleeve 300 is provided with a blocking cover, and the blocking cover is fixed on the ground wire connector female sleeve 30 0, to block the end of the mounting hole away from the ball, and the two ends of the second spring are respectively in contact with the ball and the blocking cover; the end of the ground wire connector male head 400 connected to the pull rope 2 is a conical structure that matches the outlet end of the ground wire connector female sleeve 300, and the end of the ground wire connector male head 400 connected to the ground wire 3 is a cylindrical structure, and a groove is provided on the outer periphery of the cylindrical structure corresponding to the ball ring. When the ground wire connector male head 400 and the ground wire connector female sleeve 300 are plugged in, the ball is stuck in the groove.

[0073] In this embodiment, one end of the ground wire connector male head 400 connected to the pull rope 2 is designed as a conical structure, and the entrance end of the ground wire connector female sleeve 300 is designed as a cylindrical structure. When the pull rope 2 pulls the ground wire connector male head 400 to quickly insert it into the ground wire connector female sleeve 300, the ground wire connector male head 400 will squeeze the ball during the plugging process, so that the ball overcomes the force of the second spring and moves in a direction away from the ground wire connector male head 400. When the ground wire connector male head 400 moves to the point where the ball is just located in the slot on the outer periphery of the ground wire connector male head 400, the ground wire connector male head 400 is clamped and fixed to the ground wire connector female sleeve 300 to achieve the grounding operation of the overhead conductor 1.

[0074] The mounting hole, the second spring, the ball bearing, the slot, etc. in this embodiment are not shown in the figures. Those skilled in the art can directly and meaninglessly obtain them based on the description of this embodiment, and they will not be described in detail here.

[0075] The wire-retracting and -releasing mechanism 500 has two retracting and -releasing wheels 510. Figure 5As shown, each retractable wheel 510 has two retractable grooves 520 arranged at intervals along its axial direction, and the pull rope 2 and the ground wire 3 are respectively wound in one of the retractable grooves 520 on one of the retractable wheels 510. By providing two retractable wheels 510 and designing two retractable grooves 520 arranged at intervals on each retractable wheel 510, it is convenient to independently retract and release the pull rope 2 and the ground wire 3.

[0076] The embodiment of the present invention further provides an overhead conductor grounding method based on the overhead conductor grounding device, comprising the following steps:

[0077] (1) Provide an overhead wire grounding device as well as a pull rope 2 and a ground wire 3 according to any of the above embodiments, wind the ground wire 3 on the wire retracting and releasing mechanism 500, and connect one end of the ground wire 3 to the ground, while the other end is connected to the male connector 400 of the ground wire connector; connect one end of the pull rope 2 to the male connector 400 of the ground wire connector, and the other end passes through the female sleeve 300 of the ground wire connector, passes around the pulley 200, and is connected to the counterweight 600;

[0078] (2) Using a drone to suspend the line clamp mechanism 100, the line clamp mechanism 100, the pulley 200 and the ground wire connector female sleeve 300 are pulled up until the line clamp mechanism 100 clamps the overhead wire 1;

[0079] (3) Pull the ground wire connector male head 400 by the pull rope 2, so that the ground wire connector male head 400 rises to engage with the ground wire connector female sleeve 300, thereby achieving grounding of the overhead conductor 1.

[0080] In this embodiment, the grounding of the ground wire 3 refers to connecting the ground wire 3 to the angle steel at the bottom of the iron tower 4 near the overhead conductor 1 .

[0081] Furthermore, the wire retracting and releasing mechanism 500 includes a first retracting and releasing wheel and a second retracting and releasing wheel ( Figure 1 , Figure 6 and Figure 7 Not shown, please refer to Figure 5 ), the first retractable wheel has a first retractable groove and a second retractable groove spaced apart along its axial direction, the second retractable wheel has a third retractable groove and a fourth retractable groove spaced apart along its axial direction, the pull rope 2 includes a guide rope 21 and a load-bearing rope 22, and the overhead conductor grounding method specifically includes the following steps:

[0082] (1) Wind the load-bearing rope 22 in the first retractable groove along the A direction, and after grounding the ground wire 3, wind it in the third retractable groove along the A direction, and connect one end of the load-bearing rope 22 to the guide rope 21, and the other end to the ground wire 3 through the ground wire connector male connector 400;

[0083] (2) Pass the end of the guide rope 21 away from the load-bearing rope 22 through the ground wire connector female sleeve 300 and then pass it around the pulley 200 to connect with the counterweight 600;

[0084] (3) Using a drone, the line clamp mechanism 100, the pulley 200 and the ground wire connector female sleeve 300 are suspended and raised to the top of the overhead wire 1. The drone descends and releases the line clamp mechanism 100, so that the line clamp mechanism 100 is clamped on the overhead wire 1 by its own gravity.

[0085] (4) Figure 1 , rotate the first retractable wheel to release the leader rope 21. When the counterweight 600 falls to the ground, remove the counterweight 600 and wind the leader rope 21 in the second retractable groove along the B direction. The A direction is opposite to the B direction. At this time, the first retractable wheel tightens the leader rope 21 and releases the load-bearing rope 22 at the same time;

[0086] (5) Figure 6 When the end of the load-bearing rope 22 connected to the guide rope 21 moves to the ground, the load-bearing rope 22 is wound in the fourth retractable groove along the B direction, and the second retractable wheel tightens the load-bearing rope 22 while releasing the ground wire 3 ( Figure 7 ) (the second retracting and releasing wheel will also reel in the guide rope 21 at the same time), so that the ground wire connector male head 400 and the ground wire connector female sleeve 300 are clamped and fixed.

[0087] The second retractable wheel in the present embodiment is not limited to retracting and releasing the ground wire 3, and can also be used to retract and release the pull rope 2 according to actual conditions.

[0088] Among them, after the ground wire connector male head 400 is clamped and fixed with the ground wire connector female sleeve 300, it is necessary to use fasteners such as pins to fix the second retracting wheel to prevent it from rotating in the opposite direction to release the load-bearing rope 22, so that the load-bearing rope 22 always tightens the ground wire connector male head 400, thereby further improving the connection stability between the ground wire connector male head 400 and the ground wire connector female sleeve 300, that is, the grounding stability of the overhead conductor 1.

[0089] Of course, in other embodiments, only one retracting wheel 510 may be provided, and a plurality of retracting grooves 520 may be provided on the retracting wheel 510, which can also realize independent retraction and extension of the pull rope 2 and the ground wire 3, and the details will not be repeated.

[0090] When it is necessary to release the grounding operation of the overhead wire 1, the reverse steps are followed, that is, the second retractable wheel is rotated in the opposite direction, the load-bearing rope 22 is released and the ground wire 3 is tightened at the same time, and the ground wire connector male head 400 is pulled outward through the ground wire 3. The pulling force applied to the ground wire 3 causes the ground wire connector male head 400 to overcome the clamping force between it and the ground wire connector female sleeve 300 and be untied from the ground wire connector female sleeve 300; by controlling the rope releasing speed of the first retractable wheel and the wire retracting speed of the second retractable wheel, the ground wire 3 is slowly returned to the ground, and finally the drone is used to hook the suspension part 120 and pull it up, so that the overhead wire 1 is separated from the line clamp mechanism 100, and the recovery of the ground wire 3 is completed.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. An overhead conductor grounding device, characterized in that: include: A line-holding clamp mechanism, which can be moved into the air by means of a drone and clamp the overhead wire; A pulley, fixed to one side of the line-parking clamp mechanism along a first direction, and a rotation axis of the pulley extends along the first direction; A ground wire connector female sleeve, fixed to a side of the line clamp mechanism where the pulley is installed and located obliquely below the pulley; A ground wire connector male head, which can be snap-fitted with the ground wire connector female sleeve, and is used to connect the pull rope and the ground wire; A wire-retracting and -releasing mechanism, wherein the wire-retracting and -releasing mechanism is used to retract and release a pull rope and a ground wire, wherein one end of the ground wire away from the pull rope is grounded, and one end of the pull rope away from the male head of the ground wire connector passes through the female sleeve of the ground wire connector and bypasses the pulley to be connected to the counterweight, and the pull rope is used to pull the male head of the ground wire connector upwards until it is engaged with the female sleeve of the ground wire connector to achieve grounding of the overhead wire.

2. The overhead conductor grounding device according to claim 1, characterized in that: The line clamp mechanism comprises: A mounting plate, the pulley and the ground wire connector female sleeve are mounted on one side of the mounting plate along the first direction; A hanging part, connected to the mounting plate and used for hanging on the drone; An elastic wire clamp, the elastic wire clamp comprising a U-shaped frame with an opening facing downward, a clamping plate and a first elastic portion, the U-shaped frame being fixed to the bottom of the mounting plate, two clamping plates being arranged in the U-shaped frame along a second direction at intervals, each of the clamping plates being connected to a side plate of the U-shaped frame along the second direction through a first elastic portion, and the first direction being perpendicular to the second direction; When the overhead wire is inserted between the two clamping plates, the first elastic portion causes the clamping plates to always have a tendency to move toward the overhead wire.

3. The overhead conductor grounding device according to claim 2, characterized in that: The overhead conductor grounding device also includes a counterweight suspension and displacement assembly, which is connected to the line clamp mechanism and is used to suspend the counterweight and push out the counterweight to make it suspended when the overhead conductor is clamped between the two clamping plates.

4. The overhead conductor grounding device according to claim 3, characterized in that: The two sides of the hanging part are connected to the mounting plate and extend downward to the outside of the U-shaped frame; the first elastic part includes a guide rod and a first spring, one end of the guide rod is fixedly connected to the clamping plate, and the other end passes through the side plate of the U-shaped frame and is fixedly connected to the hanging part, the first spring is sleeved on the guide rod, and the two ends of the first spring are respectively in contact with the clamping plate and the corresponding side plate of the U-shaped frame; The counterweight suspension pushing assembly includes a push rod and a supporting part, the push rod is fixed on one side of the suspension part, the supporting part is fixed on one side of the mounting plate and adjacent to the push rod, the counterweight is suspended on the supporting part, when the overhead wire is clamped between the two clamping plates, the clamping plates squeeze the first spring to drive the guide rod to push the two sides of the suspension part to move away from the mounting plate, and the suspension part pushes the push rod to push the counterweight away from the supporting part, so that the counterweight is in a suspended state.

5. The overhead conductor grounding device according to claim 4, characterized in that: The counterweight includes a plumb bob, an intermediate connecting part, a connecting rod and a hanging ring, the plumb bob is connected to the connecting rod through the intermediate connecting part, the hanging ring is fixed on the side of the connecting rod away from the plumb bob, the supporting part includes a vertically connected fixing plate and a supporting plate, the fixing plate is fixedly connected to one side of the mounting plate along the second direction, the hanging ring is connected to the pull rope, the connecting rod is used to be suspended on the supporting plate, and the push rod is used to selectively push the connecting rod away from the supporting plate.

6. The overhead conductor grounding device according to claim 2, characterized in that: It also includes a first pull rope guide portion and a second pull rope guide portion fixed on the mounting plate, the ground wire connector female sleeve and the first pull rope guide portion are inclined in the same direction, one end of the first pull rope guide portion is connected to the ground wire connector female sleeve, and the other end extends to the vicinity of the pulley, the second pull rope guide portion is inclined, the first pull rope guide portion and the second pull rope guide portion are arranged at an angle not greater than 90°, one end of the pull rope is connected to the ground wire connector male head, and the other end passes through the ground wire connector female sleeve, the first pull rope guide portion, then bypasses the pulley and passes through the second pull rope guide portion to be connected to the counterweight, and the entrance end of the ground wire connector female sleeve and the second pull rope guide portion respectively extend to the outside of the mounting plate.

7. The overhead conductor grounding device according to any one of claims 1 to 6, characterized in that: The outlet end of the grounding connector female sleeve is a conical structure, and the inlet end of the grounding connector female sleeve is a cylindrical structure. The inner wall spacer ring of the inlet end of the grounding connector female sleeve is provided with a plurality of circular mounting holes, and a second spring and a ball are installed in the mounting hole. The diameter of the ball is smaller than the diameter of the mounting hole, and the ball part protrudes from the mounting hole. The outer wall ring of the inlet end of the grounding connector female sleeve is provided with a blocking cover, and the blocking cover is fixed to the outer wall of the inlet end of the grounding connector female sleeve to block the second spring and the ball. The mounting hole is away from one end of the ball, and the two ends of the second spring are respectively abutted against the ball and the sealing cover; the end of the male head of the ground wire connector connected to the pull rope is a conical structure that matches the outlet end of the female sleeve of the ground wire connector, and the end of the male head of the ground wire connector connected to the ground wire is a cylindrical structure, and the outer circumference of the cylindrical structure is provided with a groove corresponding to the ball ring, and when the male head of the ground wire connector is plugged into the female sleeve of the ground wire connector, the ball is stuck in the groove.

8. The overhead conductor grounding device according to claim 7, characterized in that: The wire retracting and releasing mechanism has two retracting and releasing wheels, each of which has two retracting and releasing grooves arranged at intervals along its axial direction, and the pull rope and the ground wire are respectively wound in one of the retracting and releasing grooves on one of the retracting and releasing wheels.

9. An overhead conductor grounding method, characterized in that: The following steps are involved: (1) Provide the overhead conductor grounding device as claimed in any one of claims 1 to 8, as well as a pull rope and a ground wire, wind the ground wire around the wire-retracting and -releasing mechanism, and connect one end of the ground wire to the ground, while the other end is connected to the male end of the ground wire connector; connect one end of the pull rope to the male end of the ground wire connector, while the other end passes through the female sleeve of the ground wire connector and then passes around the pulley to connect to the counterweight; (2) Using a drone to suspend the line clamp mechanism, the line clamp mechanism, the pulley and the ground wire connector female sleeve are pulled up until the line clamp mechanism clamps the overhead wire; (3) Pull the male head of the ground wire connector by the pull rope, so that the male head of the ground wire connector rises to be engaged with the female sleeve of the ground wire connector.

10. The overhead conductor grounding method according to claim 9, characterized in that: The wire-retracting and releasing mechanism comprises a first retracting and releasing wheel and a second retracting and releasing wheel, the first retracting and releasing wheel has a first retracting and releasing groove and a second retracting and releasing groove arranged at intervals along its axial direction, the second retracting and releasing wheel has a third retracting and releasing groove and a fourth retracting and releasing groove arranged at intervals along its axial direction, the pull rope comprises a pilot rope and a load-bearing rope, and the overhead wire grounding method specifically comprises the following steps: (1) Wind the load-bearing rope in the first retractable groove along direction A, and after grounding the ground wire, wind it in the third retractable groove along direction A, and connect one end of the load-bearing rope to the guide rope, and the other end to the ground wire through the male connector of the ground wire connector; (2) Pass one end of the guide rope away from the load-bearing rope through the ground wire connector sleeve and then around the pulley to connect with the counterweight; (3) Using a drone to suspend and raise the line clamp mechanism, the pulley and the ground wire connector female sleeve to just above the overhead wire, the drone descends and releases the line clamp mechanism, so that the line clamp mechanism is clamped on the overhead wire by its own gravity; (4) Rotate the first retractable wheel to release the leader rope. When the counterweight falls to the ground, remove the counterweight and wind the leader rope in the second retractable groove along direction B. The direction A is opposite to the direction B. At this time, the first retractable wheel tightens the leader rope 21 and releases the load-bearing rope 22 at the same time. (5) When one end of the load-bearing rope connected to the guide rope moves to the ground, the load-bearing rope is wound in the fourth retracting groove along direction B, and the second retracting wheel tightens the load-bearing rope while releasing the ground wire, so that the male head of the ground wire connector and the female sleeve of the ground wire connector are clamped and fixed.

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