Unmanned aerial vehicle-mounted lockable grounding wire clamp device and method for leading backflow in high-voltage wire to ground

Abstract

The invention belongs to the technical field of high-voltage line grounding equipment, and particularly relates to a lockable grounding wire clamp device mounted by an unmanned aerial vehicle and a method for introducing backflow in a high-voltage line into the ground, and the lockable grounding wire clamp device mounted by the unmanned aerial vehicle can be carried by the unmanned aerial vehicle to complete grounding operation of the high-voltage line in maintenance. The lockable grounding wire clamp device is time-saving and safe for on-site constructors, a unique locking and unlocking mechanism composed of a lock cylinder, a clamping jaw assembly, a spring bolt driving piece and an unmanned aerial vehicle mounting assembly enables a high-voltage wire to enter a high-voltage wire claw embracing area, and then high-voltage wire claw embracing can be completed under the self-gravity effect of the lockable grounding wire clamp device; according to the invention, connection and locking of the high-voltage line are realized, the locking mode is relatively reliable, unlocking can be realized only by pulling up the unmanned aerial vehicle mounting assembly, and safe grounding in adverse weather such as strong wind is realized. When the unmanned aerial vehicle needs to be taken down, unlocking can be achieved by connecting the unmanned aerial vehicle with the unmanned aerial vehicle mounting assembly and pulling the unmanned aerial vehicle mounting assembly upwards, and unlocking is convenient and fast.

Description

Technical Field

[0001] The present invention belongs to the technical field of high-voltage line grounding equipment, and particularly relates to a lockable grounding wire clamp device mounted by a drone and a method for introducing the return current in a high-voltage line into the ground. Background Art

[0002] In the power construction industry, when maintenance of a high-voltage line is required by operators, power outage is usually carried out. However, there is still a part of the return current passing through the high-voltage line after the power outage. At this time, a grounding wire device is needed to introduce the return current in the high-voltage line into the ground, otherwise it will pose a threat to the personal safety of the operators.

[0003] In the traditional operation mode, operators need to climb the tower to mount the grounding wire clamp on the high-voltage line, and introduce the return current into the ground through the grounding wire at the end of the grounding wire clamp. Since multiple high-voltage lines are usually used for transmission, to ensure the safety of a certain construction section, grounding wire devices need to be installed on all high-voltage lines at both ends of this construction section. This requires the tower climbers to climb the tower multiple times to mount the grounding wires. This method has a long construction period and poses a certain risk to the personal safety of the high-altitude operators.

[0004] The grounding wire clamp device mounted by a drone has also appeared in recent years, but there are certain defects in the technical solutions. For example, it is difficult to unhook after mounting. Another example is that it is not mechanically locked but locked by a spring after mounting. This method may fall off due to the large swing of the high-voltage line in strong wind weather, posing a risk to the construction personnel. Summary of the Invention

[0005] The present invention aims to provide a lockable grounding wire clamp device mounted by a drone and a method for introducing the return current in a high-voltage line into the ground, so as to solve the technical problems that the existing grounding wire clamp is not convenient for locking and unlocking the high-voltage line and the locking is not stable.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: Provided is a lockable grounding wire clamp device mounted on an unmanned aerial vehicle, comprising a fuselage and a clamping claw assembly, wherein a cavity is provided in the fuselage, the clamping claw assembly is arranged in the cavity, a lock core is also provided in the cavity, the lock core comprises a sliding body which can move up and down, the clamping claw assembly comprises a high-voltage wire claw which can be driven to open and close by the sliding body; a high-voltage wire entry groove is provided at the lower part of the fuselage, the high-voltage wire entry groove extends into the cavity; the lock core also comprises a lock tongue for limiting the downward movement of the sliding body, the sliding body is provided with a locking portion corresponding to the lock tongue; a lock tongue driving member for driving the lock tongue to disengage from the locking portion is provided in the cavity, a UAV mounting assembly which can move freely up and down is provided on the fuselage, the lock tongue driving member is connected to the UAV mounting assembly; a grounding wire connection position is provided at the bottom of the fuselage, and all movable parts of the lockable grounding wire clamp device are electrically connected through wires.

[0007] Furthermore, the clamping jaw assembly also includes a swing arm swingably arranged in the cavity, and the high-voltage line claw includes a claw seat portion, and the upper and lower sides of the claw seat portion are respectively provided with a first hinge position and a second hinge position, the first hinge position is hinged to the lower end of the swing arm, and the second hinge position is hinged to the lower end of the sliding body.

[0008] Furthermore, the lock core also includes a lock core seat fixedly arranged in the cavity, the upper end of the swing arm is hinged on the lock core seat, a sliding groove is provided in the lock core seat, the sliding body is arranged in the sliding groove, a sliding guide column is provided in the sliding groove, a sliding guide hole is correspondingly provided in the sliding body, and a reset spring located on the upper side of the sliding body is sleeved on the sliding guide column.

[0009] Furthermore, the lock core seat is provided with a lock tongue hole located on the side of the sliding groove, the lock tongue is arranged in the lock tongue hole, and the locking part is a tooth row arranged on the side of the sliding body.

[0010] Furthermore, the lock core also includes a lock tongue swing arm, a lock tongue swing arm hole located on the upper side of the lock tongue hole is provided in the lock core seat, the lock tongue swing arm is hinged in the lock tongue swing arm hole, a lock tongue groove is provided at the bottom of the lock tongue swing arm, the top surface of the lock tongue groove is an inclined surface which gradually decreases from front to back, the lock tongue is hinged in the lock tongue groove, and the lock tongue driving member is used to drive the lock tongue swing arm to swing.

[0011] Furthermore, an inclined hole is provided on the upper portion of the lock tongue swing arm, and the lock tongue driving member is an unlocking cross bar passing through the inclined hole.

[0012] Furthermore, the UAV mounting assembly includes a movable plate, a lifting ring is connected to the movable plate, an unlocking guide column is provided on the movable plate, an unlocking guide hole is correspondingly provided on the fuselage, the unlocking guide column is inserted into the cavity through the unlocking guide hole, and the unlocking cross bar is arranged at the lower part of the unlocking guide column.

[0013] Furthermore, the fuselage includes a body and a guide trunk, a guide leg is provided on one side of the lower part of the body, the high-voltage line entry groove is located between the guide leg and the guide trunk, and the high-voltage line entry groove gradually widens from top to bottom; the body includes a casing and a cover plate, a plug-in plate is provided on the top of the guide trunk, a plug-in slot is correspondingly provided on one side of the casing, corresponding pin holes are provided on both sides of the plug-in slot on the body and on the plug-in plate, and the plug-in plate is connected to the plug-in slot through a pin.

[0014] Furthermore, the grounding wire connection position is located at the bottom of the guide leg, and a grounding wire guard plate is provided next to the grounding wire connection position.

[0015] The present invention also provides a method for introducing return current in a high-voltage line into the ground, the method using any of the above-mentioned lockable grounding wire clamp devices mounted by a drone, comprising: Connecting the ground wire: Connect the ground wire to the lockable ground wire clamp device; Ascending to the high-voltage line: the drone is connected to the drone mounting assembly on the lockable grounding wire clamp device, the drone ascends and carries the lockable grounding wire clamp device to the upper side of the high-voltage line, and the high-voltage line is located at the lower side of the high-voltage line entry slot at the lower part of the fuselage, and the drone slowly descends with the lockable grounding wire clamp device, so that the high-voltage line enters the slot from the high-voltage line to the high-voltage line claw clasping area; Clamping the high-voltage wire: As the drone carrying the lockable grounding wire clamp device continues to slowly descend, the lockable grounding wire clamp device presses on the high-voltage wire. Under the self-gravity of the lockable grounding wire clamp device, the high-voltage wire resists the upward movement of the sliding body and drives the high-voltage wire claw to embrace and clamp the high-voltage wire. Then the drone detaches from the lockable grounding wire clamp device and descends to the ground. During the upward movement of the sliding body, different parts of the locking part on the sliding body are locked with the locking tongue, so as to limit the downward movement of the sliding body through the locking tongue. High-voltage line grounding: The lower end of the grounding line is electrically connected to the ground to introduce the return current in the high-voltage line into the ground through the grounding wire; Detachment from the high-voltage line: After the maintenance of the high-voltage line is completed, the drone ascends and connects to the drone mounting component of the lockable ground wire clamp device. The drone carries the lockable ground wire clamp device and ascends slowly. The drone mounting component moves upward relative to the fuselage and drives the lock tongue driving member to move upward. Further, the lock tongue driving member drives the lock tongue to disengage from the locking portion, the sliding body descends, and the high-voltage line claws open and detach from the high-voltage line; Descend to the ground: The drone carries the lockable ground wire clamp device and lands on the ground.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: The lockable ground wire clamp device mounted by the drone can complete the grounding operation of the high-voltage line during maintenance by being carried by the drone, which is time-saving and safe for on-site construction personnel. Among them, the unique locking and unlocking mechanism composed of a lock core, a jaw assembly, a lock tongue driving member, and a drone mounting component enables the high-voltage line claws to close around the high-voltage line under the action of the self-gravity of the lockable ground wire clamp device after the high-voltage line enters the closing area of the high-voltage line claws, realizing the connection and locking of the high-voltage line. And the locking method is relatively reliable. Only by pulling up the drone mounting component can the unlocking be achieved, solving the problem of safe grounding in adverse weather such as strong winds. When it needs to be removed, unlocking can be achieved by connecting the drone to the drone mounting component and pulling up, making it relatively easy to remove the lockable ground wire clamp device from the high-voltage line. The locking and unlocking methods of the lockable ground wire clamp device are both realized through a pure mechanical structure, which is durable and reliable. Description of the Drawings

[0017] The present invention will be explained in detail below with reference to the drawings. It should be noted that the drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but cannot impose any limitation on the feasibility of the present invention.

[0018] In the drawings: Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the lockable ground wire clamp device mounted by the drone of the present invention.

[0019] Figure 2 is a structural schematic diagram of the fuselage with the cover opened in an embodiment of the lockable ground wire clamp device mounted by the drone of the present invention.

[0020] Figure 3 is a three-dimensional structural schematic diagram of the lock core and the jaw assembly in an embodiment of the lockable ground wire clamp device mounted by the drone of the present invention.

[0021] Figure 4 is an exploded view of the lock core in an embodiment of the lockable ground wire clamp device mounted by the drone of the present invention.

[0022] Figure 5 This is an exploded view of the jaw assembly in an embodiment of the lockable ground wire clamp device mounted on a drone according to the present invention.

[0023] Figure 6 This is a perspective view of the lock core seat in an embodiment of the lockable ground wire clamp device mounted on a drone according to the present invention.

[0024] Figure 7 This is a perspective view of the lock tongue and the lock tongue swing arm in an embodiment of the lockable ground wire clamp device mounted on a drone according to the present invention.

[0025] Figure 8 This is a cross-sectional view of the lock tongue and the lock tongue swing arm in an embodiment of the lockable ground wire clamp device mounted on a drone according to the present invention.

[0026] Figure 9 This is a connection diagram of the lock core, the jaw assembly and the drone mounting assembly in an embodiment of the lockable ground wire clamp device mounted on a drone according to the present invention.

[0027] Figure 10 This is an exploded view of the fuselage in an embodiment of the lockable ground wire clamp device mounted on a drone according to the present invention.

[0028] Figure 11 This is a perspective view of the guiding elephant trunk in an embodiment of the lockable ground wire clamp device mounted on a drone according to the present invention.

[0029] In the figure, the reference numerals denote: Fuselage 10, cavity 11, unlocking guiding hole 12, fuselage 13, guiding leg 131, ground wire connection position 1311, ground wire connection screw hole 1312, housing 132, insertion slot 1321, cover plate 133, ground wire protection plate 134, guiding elephant trunk 14, insertion piece 141, pin 15; Jaw assembly 20, high-voltage wire claws 21, claw seat part 211, first hinge position 212, second hinge position 213, swing arm 22; Lock core 30, sliding body 31, locking part 311, sliding guiding hole 312, lock tongue 32, contact surface 321, lock core seat 33, sliding groove 331, lock tongue hole 332, lock tongue swing arm hole 333, sliding guide post 34, return spring 35, lock tongue swing arm 36, lock tongue groove 361, inclined surface 362, inclined hole 363; High-voltage wire entry slot 40; Lock tongue driving part 50; Drone mounting assembly 60, movable plate 61, suspension ring 62, unlocking guide post 63, limit projection 631. Detailed implementation manners

[0030] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0031] In addition, as shown in the present disclosure and the claims, unless the context clearly indicates an exception, words such as "a", "an", "one", and / or "the" are not specifically singular and may also include plural. The words "first", "second", and similar words used in the present disclosure do not indicate any order, quantity, or importance, but are only used to distinguish different components. Similarly, words such as "comprising" or "including" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present application.

[0032] In one embodiment, a lockable ground wire clamp device mounted by a drone is provided. As Figure 1 shown, the lockable ground wire clamp device mounted by the drone includes a fuselage 10 and a jaw assembly 20. The fuselage 10 is used to install other components and to guide the high-voltage wire into the jaw assembly 20, and the jaw assembly 20 is used to clamp the high-voltage wire. As Figure 2 shown, a cavity 11 is provided in the fuselage 10, the jaw assembly 20 is arranged in the cavity 11, and a lock core 30 is also provided in the cavity 11. The lock core 30 is used to lock the state of the jaw assembly 20. Combining Figure 3 and Figure 4 shown, the lock core 30 includes a slidable body 31 that can move up and down. The jaw assembly 20 includes high-voltage wire claws 21 that can be driven to open and close by the slidable body 31. In this embodiment, there are two high-voltage wire claws 21 on the left and right, and the slidable body 31 is a slider. The two high-voltage wire claws 21 are driven to open and close by the up and down movement of the slidable body 31.

[0033] As Figure 1As shown, a high-voltage line entry groove 40 is provided at the lower part of the fuselage 10. The high-voltage line entry groove 40 is a downward opening, and the upper end of the high-voltage line entry groove 40 extends into the cavity 11, so that when the lockable grounding wire clamp device is carried by an unmanned aerial vehicle to the high-voltage line, the high-voltage line can enter the embracing area of ​​the high-voltage line claws 21 arranged in the cavity 11, and as the unmanned aerial vehicle carrying the lockable grounding wire clamp device slowly descends, under the action of the self-gravity of the lockable grounding wire clamp device, the high-voltage line resists the sliding body 31 and moves upward to drive the high-voltage line claws 21 to embrace, and after the high-voltage line claws 21 embrace, electrical connection with the high-voltage line is achieved, and the grounding wire connected by the lockable grounding wire clamp device can guide the return current of the high-voltage line into the ground.

[0034] Combination Figure 3 and Figure 4 As shown, the lock core 30 also includes a lock tongue 32 for limiting the downward movement of the sliding body 31. A locking portion 311 corresponding to the lock tongue 32 is provided on the sliding body 31. When the sliding body 31 moves upward, the lock tongue 32 is always locked with the sliding body 31. The lock tongue 32 will not prevent the sliding body 31 from moving upward, but will prevent the sliding body 31 from moving downward, so as to prevent the high-voltage line claw 21 from opening without unlocking.

[0035] Combination Figure 2 As shown, a lock tongue driving component 50 for driving the lock tongue 32 to disengage from the locking portion 311 is provided in the cavity 11. The lock tongue driving component 50 disengages from the locking portion 311 by driving the lock tongue 32 to move position or adjust posture. A drone mounting assembly 60 that can move freely up and down is provided on the fuselage 10. The drone mounting assembly 60 is used to connect with the drone, and the lock tongue driving component 50 is connected to the drone mounting assembly 60. When the drone rises, it can drive the drone mounting assembly 60 to move up relative to the fuselage 10, thereby driving the lock tongue driving component 50 to move up. The lock tongue driving component 50 then drives the lock tongue 32 to disengage from the locking portion 311 to unlock, so that the downward movement of the sliding body 31 is no longer restricted, that is, the high-voltage line claw 21 can be freely opened. The high-voltage line claw 21 can be opened under the action of gravity or driven by the high-voltage line, so that it can be disengaged from the high-voltage line. As shown Figure 1-2 As shown, a grounding wire connection position 1311 is provided at the bottom of the fuselage 10, and the various movable parts of the lockable grounding wire clamp device are electrically connected through wires (not shown in the figure), and the various movable parts are made of conductive materials. The connection through wires makes the entire device have better conductivity, so that the high-voltage wire claw 21 can be electrically connected to the grounding wire connection position 1311, and the grounding wire connection position 1311 is used to electrically connect the grounding wire. The high-voltage wire claw 21 can be directly electrically connected to the grounding wire connection position 1311 through a wire, or the electrical connection can be achieved through mutual conductivity between the conductive parts in the lockable grounding wire clamp device mounted by the drone.

[0036] Based on the above embodiments, the lockable grounding wire clamp device carried by the drone can complete the grounding operation of high-voltage lines during maintenance by being carried by the drone, which is time-saving and safe for on-site construction personnel. Among them, the unique locking and unlocking mechanism composed of the lock core 30, the jaw assembly 20, the lock tongue driving member 50, and the drone mounting assembly 60 enables the high-voltage line to be clamped by the high-voltage line claws 21 under the action of the self-gravity of the lockable grounding wire clamp device after entering the clamping area of the high-voltage line claws 21, realizing the connection and locking of the high-voltage line, and the locking method is relatively reliable. Only by pulling up the drone mounting assembly 60 can unlocking be achieved, solving the problem of safe grounding in adverse weather such as strong winds. When it needs to be removed, unlocking can be achieved by connecting the drone to the drone mounting assembly 60 and pulling up, making it easier to remove the lockable grounding wire clamp device from the high-voltage line. The locking and unlocking methods of the lockable grounding wire clamp device are both realized through a pure mechanical structure, which is durable and reliable.

[0037] Further, in another embodiment, as Figure 3 and Figure 5 shown, the jaw assembly 20 in the lockable grounding wire clamp device carried by the drone further includes a swing arm 22 swingably arranged in the cavity. Each of the high-voltage line claws 21 on the left and right sides is correspondingly provided with a swing arm 22. The swing arm 22 is used to cooperate with the lock core 30 to drive the opening and closing of the high-voltage line claws 21. The high-voltage line claws 21 include a claw seat portion 211 on the upper side. The upper and lower sides of the claw seat portion 211 are respectively provided with a first hinge position 212 and a second hinge position 213. Both the first hinge position 212 and the second hinge position 213 are hinge holes. The first hinge position 212 is hinged to the lower end of the swing arm 22 (the hinge shaft is not shown in the figure), and the second hinge position 213 is hinged to the lower end of the sliding body 31. When the sliding body 31 moves upward, the high-voltage line claws 21 on both sides rotate inward relative to the swing arm 22 to achieve clamping. When the sliding body 31 moves downward, the high-voltage line claws 21 on both sides rotate outward relative to the swing arm 22 to achieve opening.

[0038] Further, in another embodiment, as Figure 3 、 Figure 4 and Figure 6As shown in the figure, the lock core 30 in the lockable ground wire clamp device carried by the drone further includes a lock core seat 33 fixedly arranged in the cavity 11. The lock core seat 33 is fixedly connected to the inner top of the cavity 11 of the fuselage 10 by screws. The lock core seat 33 is in a T shape with a wider upper part and a narrower lower part. The upper ends of the swing arms 22 on both sides are respectively hinged to both sides of the top of the lock core seat 33. A sliding groove 331 matching the sliding body 31 is provided in the lock core seat 33. The sliding body 31 is arranged in the sliding groove 331 and moves up and down along the sliding groove 331. Two sliding guide posts 34 are provided in the sliding groove 331. The sliding guide posts 34 are fixed to the inner top of the sliding groove 331. Corresponding sliding guide holes 312 are provided in the sliding body 31. The sliding guide posts 34 pass through the sliding guide holes 312, and a return spring 35 located above the sliding body 31 is sleeved on the sliding guide posts 34. By setting the return spring 35, when the sliding body 31 moves upward, the return spring 35 is compressed. When the lock tongue 32 disengages from the locking part 311 on the sliding body 31, under the action of the return spring 35, the sliding body 31 can move downward more smoothly to achieve unlocking.

[0039] Further, in another embodiment, as Figure 3 、 Figure 4 and Figure 6 shown, a lock tongue hole 332 is provided at the bottom side of the sliding groove 331 in the lock core seat 33 of the lockable ground wire clamp device carried by the drone. The lock tongue 32 is arranged in the lock tongue hole 332. The locking part 311 is a tooth row arranged on the side surface of the sliding body 31. Tooth rows are provided on both the front and rear side surfaces of the sliding body 31, and lock tongues 32 are provided on both sides to ensure the stability of locking. Combining Figure 7 shown, the front end of the lock tongue 32 is a thinner part matching the two adjacent upper and lower teeth of the tooth row, so that the lock tongue can be smoothly locked between the two adjacent upper and lower teeth of the tooth row.

[0040] Further, in another embodiment, as Figure 3 、 Figure 4 and Figure 6-8 shown, the lock core 30 in the lockable ground wire clamp device carried by the drone further includes a lock tongue swing arm 36. The lock tongue swing arm 36 is used to drive the lock tongue 32 to lock or unlock with the sliding body 31. A lock tongue swing arm hole 333 is provided above the lock tongue hole 332 in the lock core seat 33. The lock tongue hole 332 and the lock tongue swing arm hole 333 are vertically connected. The lock tongue swing arm 36 is hinged in the lock tongue swing arm hole 333. A lock tongue groove 361 is provided at the bottom of the lock tongue swing arm 36. A hinge part is correspondingly provided in the middle of the lock tongue 32. The lock tongue 32 is hinged in the lock tongue groove 361. Combining Figure 8As shown, the top surface of the locking tongue groove 361 is an inclined surface 362 that gradually decreases from front to back. By setting the inclined surface 362, when the sliding body 31 moves upward, the lower side surface of the front end of the locking tongue 32 contacts the top surface of the teeth of the locking portion 311, and the front end of the locking tongue 32 can smoothly rotate upward, so that the locking tongue 32 does not prevent the sliding body 31 from moving upward. When the sliding body 31 moves downward, the top surface of the rear portion of the locking tongue 32 will abut against the rear edge of the inclined surface 362, making it impossible for the front end of the locking tongue 32 to rotate downward smoothly, thereby preventing the sliding body 31 from moving downward and avoiding the opening of the high-voltage wire claw 21.

[0041] Combined with Figure 7 As shown, the bottom surface of the front end of the locking tongue 32 is an inclined contact surface 321, and the top surface of each tooth of the tooth row is a corresponding inclined surface, so that when the sliding body 31 moves upward, when the contact surface 321 on the lower side of the front end of the locking tongue 32 contacts the top surface of the tooth of the locking portion 311, it is easier to push the front end of the locking tongue 32 to rotate upward. The top surface of the front end of the locking tongue 32 is a plane, and the bottom surface of the tooth is also a plane, so that the top surface of the locking tongue 32 can better hold the bottom surface of the tooth.

[0042] Further, in another embodiment, as Figure 7 and Figure 8 shown, an inclined hole 363 is provided in the upper part of the locking tongue swing arm 36 of the lockable grounding wire clamp device mounted by the unmanned aerial vehicle. Combined with Figure 9 shown, the locking tongue driving member 50 is an unlocking cross bar inserted into the inclined hole 363. Due to the provision of the inclined hole 363, when the unlocking cross bar moves upward, it can drive the lower end of the locking tongue swing arm 36 to swing outward, thereby driving the locking tongue 32 to swing outward and disengaging from the tooth row on the side surface of the sliding body 31 to achieve unlocking.

[0043] Further, in another embodiment, as Figure 1-2 and Figure 9 shown, the unmanned aerial vehicle mounting component 60 of the lockable grounding wire clamp device mounted by the unmanned aerial vehicle includes a movable plate 61. The movable plate 61 can move up and down relative to the fuselage 10. A suspension ring 62 is connected to the movable plate 61, and the suspension ring 62 is used to connect to the unmanned aerial vehicle. Unlocking guide posts 63 are respectively provided at the four corners of the movable plate 61. A limit protrusion 631 is provided at the lower part of the unlocking guide post 63 for limiting the up and down movement distance of the unlocking guide post 63. The top end of the unlocking guide post 63 is fixed on the movable plate 61. Combined with Figure 10 shown, an unlocking guide hole 12 is correspondingly provided on the fuselage 10. The unlocking guide post 63 penetrates into the cavity 11 through the unlocking guide hole 12, and the unlocking cross bar (locking tongue driving member 50) is arranged at the lower part of the two unlocking guide posts 63.

[0044] Further, in another embodiment, as Figure 1As shown, the fuselage 10 in the drone-mounted lockable ground wire clamp device includes a body 13 and a guiding elephant trunk 14. A guiding leg 131 is provided on the lower left side of the body 13. The high-voltage wire inlet groove 40 is located between the guiding leg 131 and the guiding elephant trunk 14, and the high-voltage wire inlet groove 40 gradually widens from top to bottom. Combining Figure 10 As shown, the body 13 includes a casing 132 and a cover plate 133, and the cover plate 133 is connected to one side of the casing 132. Combining Figure 11 As shown, a plug-in piece 141 is provided at the top of the guiding elephant trunk 14, as Figure 10 As shown, a plug-in slot 1321 is correspondingly provided on the right side of the casing 132 of the body 13. Corresponding pin holes are provided on both sides of the plug-in slot 1321 on the casing 132 of the body 13 and on the plug-in piece 141. The plug-in piece 141 is connected to the plug-in slot 1321 through a pin 15 to achieve quick disassembly and assembly.

[0045] Further, in another embodiment, as Figure 1-2 As shown, the ground wire connection position 1311 in the drone-mounted lockable ground wire clamp device is located at the bottom of the guiding leg 131. Combining Figure 10 As shown, a ground wire connection screw hole 1312 is provided inside the ground wire connection position 1311 for connecting the ground wire. A ground wire guard plate 134 is provided beside the ground wire connection position 1311, and the ground wire guard plate 134 is hinged to the guiding leg 131.

[0046] In the previous embodiments, the components to be connected are connected by bolts.

[0047] In one embodiment, a method for introducing the return current in the high-voltage wire into the ground is provided. This method uses the drone-mounted lockable ground wire clamp device in the previous embodiments and includes the following steps: (1) Connect the ground wire: Connect the ground wire to the lockable ground wire clamp device.

[0048] (2) Rise to the high-voltage wire: The drone is connected to the drone mounting component on the lockable ground wire clamp device. The drone rises and carries the lockable ground wire clamp device to the upper side of the high-voltage wire, and makes the high-voltage wire located below the high-voltage wire inlet groove at the lower part of the fuselage. The drone carries the lockable ground wire clamp device and descends slowly, so that the high-voltage wire reaches the high-voltage wire claw clamping area from the high-voltage wire inlet groove.

[0049] (3) Clamping the high-voltage wire: As the UAV carrying the lockable grounding wire clamp device continues to slowly descend, the lockable grounding wire clamp device presses on the high-voltage wire. Under the action of the self-gravity of the lockable grounding wire clamp device, the high-voltage wire resists the upward movement of the sliding body and drives the high-voltage wire claws to embrace and clamp the high-voltage wire. Then the UAV detaches from the lockable grounding wire clamp device and descends to the ground. During the upward movement of the sliding body, different parts of the locking part on the sliding body lock with the locking tongue, so as to limit the downward movement of the sliding body through the locking tongue.

[0050] It should be noted that, due to the different thicknesses of high-voltage wires, the degree of engagement of the high-voltage wire claws 21 is different for high-voltage wires of different thicknesses, and the upward movement distance of the sliding body 31 is also different. However, when the sliding body 31 moves upward, the locking tongue 32 is always locked with the sliding body 31.

[0051] Only when the lock tongue driving member 50 rises to the uppermost end of the inclined hole 363, or a position close to the uppermost end, the locking portion 311 and the lock tongue 32 will be unlocked. The rest of the states are all locked states, but the locking degrees are different. This is also to adapt to the embracing action of high-voltage wires of different thicknesses.

[0052] (4) Grounding of high-voltage wire: The lower end of the grounding wire is electrically connected to the ground so that the return current in the high-voltage wire can be introduced into the ground through the grounding wire.

[0053] (5) Disengagement from the high-voltage line: After the high-voltage line maintenance is completed, the drone rises and is connected to the drone mounting assembly of the lockable grounding wire clamp device. The drone carries the lockable grounding wire clamp device and slowly rises. The drone mounting assembly moves upward relative to the fuselage and drives the lock tongue driving member to move upward, which further causes the lock tongue driving member to drive the lock tongue to disengage from the locking portion, the sliding body descends, the high-voltage line claw opens and disengages from the high-voltage line.

[0054] (6) Descending to the ground: The UAV carrying the lockable grounding wire clamp device descends to the ground.

[0055] In the method of introducing the return current in the high-voltage line to the ground, by mounting a lockable grounding wire clamp device on a drone, not only the problem that the grounding wire clamp mounted on the drone cannot be mechanically locked is solved, but also the problem that it is difficult to unhook after mounting is solved. When the drone carries the grounding wire clamp device and crosses over the high-voltage line, the gravity of the wire clamp device itself presses down, causing the sliding body to rise, and the tooth row attached to the sliding body also rises. At this time, the lock tongue will be inserted into the tooth row, so that the sliding body can only move upward, thereby locking the lock core, so that the high-voltage line claw will not loosen after holding the high-voltage line. When the operation process of high-voltage line maintenance is completed and the grounding wire clamp needs to be removed, the drone is used to pull the lifting ring upward, and the lifting ring will drive the lock tongue drive member to unlock the lock tongue and pull it out of the tooth row. At this time, due to the elastic force of the spring above the sliding body, the elastic force will bounce the sliding body downward, and the high-voltage line claw will open to both sides to complete the unlocking.

[0056] This design relies on the gravity of the grounding wire clamp device itself, so that the gravity compresses the spring above the sliding body, and the sliding body slides upward, and the locking tongue is pressed against the tooth row to lock the sliding body in one direction, which is very clever to lock the high-voltage wire claw, and the locking stability is good. When unlocking, the upward pulling force of the drone causes the lifting ring to move slightly upward relative to the fuselage, completing the unlocking action of the backward movement of the locking tongue, and the spring pops open the sliding body, while pushing the high-voltage wire claw to open to both sides. This unlocking design also cleverly completes the unlocking operation of the high-voltage wire claw.

[0057] It should be noted that, unless otherwise defined, all terms used in this article have the same meaning as commonly understood by those of ordinary skill in the art to which the present disclosure belongs, and those terms defined in common dictionaries herein should be interpreted as having meanings consistent with their meanings in the context of the relevant technology. It should also be understood that the above is an explanation of the present disclosure and should not be considered as a limitation thereto. Although several exemplary embodiments of the present disclosure have been described, it will be readily understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and therefore, all of these modifications are intended to be included within the scope of the present disclosure as defined in the claims and will not be described in detail one by one herein.

Claims

1. A lockable grounding wire clamp device mounted by an unmanned aerial vehicle, comprising a body and a clamping claw assembly, characterized in that: A cavity is provided in the fuselage, the clamping jaw assembly is arranged in the cavity, and a lock core is also provided in the cavity, the lock core includes a sliding body which can move up and down, and the clamping jaw assembly includes a high-voltage wire claw which can be driven to open and close by the sliding body; a high-voltage wire entry groove is provided at the lower part of the fuselage, and the high-voltage wire entry groove extends into the cavity; the lock core also includes a lock tongue for limiting the downward movement of the sliding body, and a locking part corresponding to the lock tongue is provided on the sliding body; a lock tongue driving part for driving the lock tongue to disengage from the locking part is provided in the cavity, a drone mounting assembly which can move freely up and down is provided on the fuselage, and the lock tongue driving part is connected to the drone mounting assembly; a grounding wire connection position is provided at the bottom of the fuselage, and the movable parts of the lockable grounding wire clamp device are electrically connected through wires.

2. The lockable grounding wire clamp device mounted by an unmanned aerial vehicle according to claim 1, characterized in that: The clamping claw assembly also includes a swing arm swingably arranged in the cavity, and the high-voltage line claw includes a claw seat portion, and the upper and lower sides of the claw seat portion are respectively provided with a first hinge position and a second hinge position, the first hinge position is hinged to the lower end of the swing arm, and the second hinge position is hinged to the lower end of the sliding body.

3. The lockable grounding wire clamp device mounted by an unmanned aerial vehicle according to claim 2, characterized in that: The lock core also includes a lock core seat fixedly arranged in the cavity, the upper end of the swing arm is hinged on the lock core seat, a sliding groove is provided in the lock core seat, the sliding body is arranged in the sliding groove, a sliding guide column is provided in the sliding groove, a sliding guide hole is correspondingly provided in the sliding body, and a reset spring located on the upper side of the sliding body is sleeved on the sliding guide column.

4. The lockable grounding wire clamp device mounted by an unmanned aerial vehicle according to claim 3, characterized in that: The lock core seat is provided with a lock tongue hole located on the side of the sliding groove, the lock tongue is arranged in the lock tongue hole, and the locking part is a tooth row arranged on the side of the sliding body.

5. The lockable grounding wire clamp device mounted by an unmanned aerial vehicle according to claim 4, characterized in that: The lock core also includes a lock tongue swing arm, a lock tongue swing arm hole located on the upper side of the lock tongue hole is provided in the lock core seat, the lock tongue swing arm is hinged in the lock tongue swing arm hole, a lock tongue groove is provided at the bottom of the lock tongue swing arm, the top surface of the lock tongue groove is an inclined surface which gradually decreases from front to back, the lock tongue is hinged in the lock tongue groove, and the lock tongue driving member is used to drive the lock tongue swing arm to swing.

6. The lockable grounding wire clamp device mounted by an unmanned aerial vehicle according to claim 5, characterized in that: An inclined hole is arranged on the upper part of the lock tongue swing arm, and the lock tongue driving member is an unlocking cross bar which penetrates the inclined hole.

7. The lockable grounding wire clamp device mounted by an unmanned aerial vehicle according to claim 1, characterized in that: The UAV mounting assembly includes a movable plate, a lifting ring is connected to the movable plate, an unlocking guide column is arranged on the movable plate, an unlocking guide hole is correspondingly arranged on the fuselage, the unlocking guide column penetrates into the cavity through the unlocking guide hole, and the unlocking cross bar is arranged at the lower part of the unlocking guide column.

8. The lockable grounding wire clamp device mounted by an unmanned aerial vehicle according to claim 1, characterized in that: The fuselage includes a body and a guide trunk, a guide leg is provided on one side of the lower part of the body, the high-voltage line entry groove is located between the guide leg and the guide trunk, and the high-voltage line entry groove gradually widens from top to bottom; the body includes a casing and a cover plate, a plug-in plate is provided on the top of the guide trunk, a plug-in slot is correspondingly provided on one side of the casing, corresponding pin holes are provided on both sides of the plug-in slot on the body and on the plug-in plate, and the plug-in plate is connected to the plug-in slot through a pin.

9. The lockable grounding wire clamp device mounted by an unmanned aerial vehicle according to claim 8, characterized in that: The grounding wire connection position is located at the bottom of the guide leg, and a grounding wire guard plate is arranged beside the grounding wire connection position.

10. A method for introducing return current from a high voltage line into the ground, characterized in that: The method uses the lockable grounding wire clamp device mounted by a drone as described in any one of claims 1 to 9, comprising: Connecting the ground wire: Connect the ground wire to the lockable ground wire clamp device; Ascending to the high-voltage line: the drone is connected to the drone mounting assembly on the lockable grounding wire clamp device, the drone ascends and carries the lockable grounding wire clamp device to the upper side of the high-voltage line, and the high-voltage line is located at the lower side of the high-voltage line entry slot at the lower part of the fuselage, and the drone slowly descends with the lockable grounding wire clamp device, so that the high-voltage line enters the slot from the high-voltage line to the high-voltage line claw clasping area; Clamping the high-voltage wire: As the drone carrying the lockable grounding wire clamp device continues to slowly descend, the lockable grounding wire clamp device presses on the high-voltage wire. Under the self-gravity of the lockable grounding wire clamp device, the high-voltage wire resists the upward movement of the sliding body and drives the high-voltage wire claw to embrace and clamp the high-voltage wire. Then the drone detaches from the lockable grounding wire clamp device and descends to the ground. During the upward movement of the sliding body, different parts of the locking part on the sliding body are locked with the locking tongue, so as to limit the downward movement of the sliding body through the locking tongue. High-voltage line grounding: The lower end of the grounding line is electrically connected to the ground to introduce the return current in the high-voltage line into the ground through the grounding wire; Disengagement from the high-voltage line: After the high-voltage line is inspected and repaired, the drone rises and is connected to the drone mounting assembly of the lockable grounding wire clamp device, and the drone carries the lockable grounding wire clamp device and slowly rises, and the drone mounting assembly moves upward relative to the fuselage and drives the lock tongue driving member to move upward, and further the lock tongue driving member drives the lock tongue to disengage from the locking portion, and the sliding body descends, and the high-voltage line claw opens and disengages from the high-voltage line; Descending to the ground: The drone descends to the ground carrying the lockable grounding wire clamp device.

Images