An unmanned aerial vehicle hoists a ground wire hanging and detaching device

Abstract

The present application relates to a kind of unmanned aerial vehicle hoist ground wire hanging and detaching device, belong to electric power engineering technical field;Main frame, clamp assembly, trigger rod, locking rod assembly, tension spring assembly, slider and lifting hook;Wherein, main frame is hollow frame support structure;Clamp assembly is set in the inner chamber of main frame;Trigger rod is vertically set in the middle of clamp assembly;Locking rod assembly is vertically installed in the top of clamp assembly;Tension spring assembly is installed in the top of locking rod assembly, and the top of tension spring assembly and the lower surface of the top of main frame contact;Slider is horizontally installed in the middle of locking rod assembly;Lifting hook is installed in the top of slider, and the top of lifting hook is stretched out in main frame upwards;The present application avoids operating personnel to climb tower, reduces operating personnel physical ability requirement, improves operation efficiency.

Description

Technical Field

[0001] This invention belongs to the field of power engineering technology and relates to a device for hoisting and removing grounding wires by drones. Background Technology

[0002] Transmission lines require annual power outages for maintenance. To ensure the safety of inspection personnel, grounding wires must be installed at both ends of the work area before maintenance. Only after installation and reliable grounding can personnel climb the tower to begin work. Traditionally, workers carry the grounding wire up the tower, connect it to the tower end, align it with the conductor using an auxiliary rope, and then clamp the grounding wire onto the conductor using gravity. This method requires workers to operate at heights, posing risks of falls and electric shock. Furthermore, due to the influence of the balance beam and wind at high altitudes, the grounding wire clamp often swings back and forth, making it difficult to complete the installation in one go. Additionally, AC lines have three conductors, requiring the operation to be repeated three times, typically taking about two hours to install one tower. The same procedure is required for dismantling. Therefore, this maintenance method is characterized by high risk, long processing time, and repetitive operations, placing high demands on the physical and mental health of the workers. Summary of the Invention

[0003] The technical problem solved by this invention is to overcome the shortcomings of the prior art and propose a drone-mounted ground wire attachment and removal device that avoids operators climbing the tower, reduces the physical requirements of operators, and improves work efficiency.

[0004] The solution of the present invention is:

[0005] A device for hoisting and removing ground wires for unmanned aerial vehicles (UAVs) includes a main frame, a clamp assembly, a trigger rod, a locking rod assembly, a tension / compression spring assembly, a slider, and a hook.

[0006] The main frame is a hollow frame support structure; the clamp assembly is set in the inner cavity of the main frame; the trigger rod is vertically set in the middle of the clamp assembly; the locking rod assembly is vertically installed on the top of the clamp assembly; the tension and compression spring assembly is installed on the top of the locking rod assembly, and the top of the tension and compression spring assembly contacts the lower surface of the top of the main frame; the slider is horizontally installed in the middle of the locking rod assembly; the hook is installed on the top of the slider, and the top of the hook extends upward out of the main frame.

[0007] In the aforementioned UAV ground wire hoisting and dismantling device, the main frame includes a front cover plate, a rear cover plate, an upper cover plate, a central beam, a first rotating shaft, a second rotating shaft, and a ground wire connecting plate;

[0008] The front and rear cover plates are vertically symmetrically arranged; the upper cover plate is horizontally positioned on top of the front and rear cover plates; the bottom of the front and rear cover plates has an inverted V-shaped opening structure; the central beam is positioned on top of the inverted V-shaped opening structure; the first and second rotating shafts are horizontally symmetrically arranged; the axial ends of the first rotating shaft are connected to the front and rear cover plates respectively; the axial ends of the second rotating shaft are connected to the front and rear cover plates respectively; the first and second rotating shafts are located on the top sides of the front cover plate respectively; the grounding connection plate is vertically arranged between the front and rear cover plates and is located at the bottom of the front cover plate.

[0009] In the aforementioned UAV grounding wire hoisting and dismantling device, the bottom of the central beam is provided with an arc-shaped groove, the radius of which is not less than the radius of the connected wire; the central beam and the clamp assembly work together to hold the wire tightly.

[0010] In the aforementioned drone-mounted ground wire attachment and removal device, the clamp assembly includes a first clamp and a second clamp;

[0011] Both the first clamp and the second clamp are inverted L-shaped structures; the first clamp and the second clamp are symmetrically located at the corners on both sides of the horizontal inner cavity of the main frame; the first rotating shaft and the second rotating shaft pass through the first clamp and the second clamp respectively, forming a rotating connection relative to the main frame.

[0012] In the aforementioned UAV grounding wire mounting and dismounting device, the trigger rod has a T-shaped structure, including a horizontal beam and a vertical beam; the two ends of the horizontal beam are respectively connected to the first clamp and the second clamp; a through hole is provided in the center of the central beam, and the vertical beam and the central hole of the central beam form a column fit; when the first clamp and the second clamp are closed, the end of the vertical beam of the trigger rod cannot extend out of the arc-shaped groove at the bottom of the central beam; when the first clamp and the second clamp are open, the end of the vertical beam of the trigger rod extends into the arc-shaped groove at the bottom of the central beam.

[0013] In the aforementioned UAV grounding wire mounting and dismounting device, the locking rod assembly includes a first locking rod and a second locking rod; the tension / compression spring assembly includes a first tension / compression spring and a second tension / compression spring; the large-diameter ends of the first locking rod and the second locking rod are respectively inserted into the spring mounting holes of the upper cover plate, and their end faces are respectively in contact with the first tension / compression spring and the second tension / compression spring; the locking rod assembly is driven by the tension / compression spring assembly to insert into the clamp, preventing the clamp from rotating;

[0014] Both the first and second locking rods are stepped shafts; the large-diameter ends of both the first and second locking rods are inserted into the spring mounting holes of the upper cover plate; the small-diameter ends of both the first and second locking rods pass through the through holes on the slider side ears and contact the clamping assembly; the diameter of the large-diameter end is larger than the diameter of the through hole on the slider side ears.

[0015] In the aforementioned UAV grounding wire mounting and dismounting device, the slider and the hook are connected by threads; the slider is provided with two side lugs, and the through holes of the two side lugs respectively cooperate with the first locking rod and the second locking rod to form a column.

[0016] In the aforementioned drone grounding wire mounting and dismounting device, the hook has a top curved rod and bottom straight rod structure. The bottom straight rod of the hook passes downward through the through hole in the center of the upper cover plate and is fixed to the slider. The top curved rod of the hook extends upward out of the upper cover plate for connection with the hook of an external drone.

[0017] In the aforementioned UAV grounding wire mounting and dismounting device, the long arms of the first clamp and the second clamp are both located at the bottom, and an arc with the same diameter as the wire is machined at the end of the long arm for gripping the wire; the short arms of the first clamp and the second clamp are both located at the top, and locking holes that mate with the small diameter sections of the first locking rod and the second locking rod, as well as sliding grooves that mate with both ends of the trigger rod crossbeam, are machined on the short arms.

[0018] In the aforementioned UAV grounding wire mounting and dismounting device, the front and rear ends of the slider are respectively placed in the grooves of the front cover plate and the rear cover plate; the middle of the slider is fixed to the hook by a thread; when the hook is pulled, the slider moves along the grooves on the front cover plate and the rear cover plate.

[0019] The beneficial effects of this invention compared to the prior art are:

[0020] (1) The hanging and dismantling device of the present invention has low operational risk and ensures personnel safety. It eliminates the need for workers to climb up and down for high-altitude operations, reduces the physical requirements for workers, and avoids dangers such as falls from heights and electric shocks;

[0021] (2) In actual operation, the hanging and dismantling device of the present invention only requires one drone operator. The operation that originally took about 2 hours can now be completed in about 30 minutes. It requires fewer personnel and has high work efficiency.

[0022] (3) When the device of the present invention is in operation, the drone only needs to be aligned and lowered and lifted to complete the work of attaching and removing the grounding wire. The operation is simple and does not require additional energy.

[0023] (4) The hanging and dismantling device of the present invention achieves safe and quick hanging and dismantling operations without changing the original electrical principle of the wire clamp. Basically, it can be successful in one operation, which solves the problem of the wire clamp swinging back and forth and not being able to hang accurately when hanging.

[0024] (5) The hanging and unhooking device of the present invention has a compact structure, small size, and basically no maintenance required in the later stage. Attached Figure Description

[0025] Figure 1This is a schematic diagram of the overall structure of the drone hoisting and dismantling ground wire device of the present invention;

[0026] Figure 2 This is a cross-sectional structural diagram of the drone grounding wire mounting and dismounting device of the present invention;

[0027] Figure 3 This is a schematic diagram of the main frame of the UAV grounding wire mounting and dismounting device of the present invention;

[0028] Figure 4 This is a schematic diagram of the trigger rod in the UAV ground wire hoisting and dismantling device of the present invention;

[0029] Figure 5 This is a schematic diagram of the opening of the clamp of the UAV grounding wire hoisting and dismantling device of the present invention;

[0030] Figure 6 This is a schematic diagram of the clamp closure of the UAV ground wire hoisting and dismantling device of the present invention. Detailed Implementation

[0031] The present invention will be further described below with reference to the embodiments.

[0032] This invention provides a drone-based grounding wire hoisting and dismantling device. Addressing the problems of high risk, long time consumption, and repetitive operations associated with traditional grounding wire installation methods, this invention proposes a drone-based grounding wire hoisting and dismantling device that avoids workers climbing towers, reduces the physical requirements for workers, and improves work efficiency.

[0033] Drone-mounted grounding wire attachment / removal device, such as Figures 1 to 6 As shown, the structure specifically includes a main frame, a clamp assembly 2, a trigger rod 3, a locking rod assembly 4, a tension / compression spring assembly, a slider 6, and a hook 7. The main frame is a hollow frame support structure; the clamp assembly 2 is housed within the inner cavity of the main frame; the trigger rod 3 is vertically positioned in the middle of the clamp assembly 2; the locking rod assembly 4 is vertically mounted on top of the clamp assembly 2; the tension / compression spring assembly is mounted on top of the locking rod assembly 4, with its top contacting the lower surface of the top of the main frame; the slider 6 is horizontally mounted in the middle of the locking rod assembly 4; and the hook 7 is mounted on top of the slider 6, with its top extending upwards beyond the main frame.

[0034] The main frame, serving as the primary supporting structure, comprises a front cover plate 11, a rear cover plate 12, an upper cover plate 13, a central beam 14, a first rotating shaft 15, a second rotating shaft 16, and a grounding connection plate 17. The front cover plate 11 and rear cover plate 12 are vertically symmetrically arranged; the upper cover plate 13 is horizontally positioned above the front and rear cover plates 11 and 12; the bottoms of the front and rear cover plates 11 and 12 form an inverted V-shaped opening; the central beam 14 is positioned at the top of the inverted V-shaped opening; the first and second rotating shafts 15 and 16 are horizontally symmetrically arranged; the axial ends of the first rotating shaft 15 are connected to the front and rear cover plates 11 and 12, respectively; the axial ends of the second rotating shaft 16 are also connected to the front and rear cover plates 11 and 12, respectively; the first and second rotating shafts 15 are located on either side of the top of the front cover plate 11; and the grounding connection plate 17 is vertically positioned between the front and rear cover plates 11, and at the bottom of the front cover plate 11. The bottom of the center beam 14 is provided with an arc-shaped groove, the radius of which is not less than the radius of the connected conductor; the center beam 14 and the clamp assembly 2 work together to hold the conductor tightly.

[0035] The front cover plate 11 and the rear cover plate 12 of the present invention sandwich all components except the upper cover plate 13 in the middle, the ground wire connecting plate 17 is located at the bottom, the central beam 14 is located in the middle, and the first rotating shaft 15 and the second rotating shaft 16 are located in the upper middle part; the upper cover plate 13 is located at the top and connects the front cover plate 11 and the rear cover plate 12, and a boss for installing tension and compression spring assemblies is machined in the middle position.

[0036] In terms of detailed design, the front cover plate 11 and rear cover plate 12 in the main frame have inverted V-shaped openings at the bottom to facilitate wire insertion, and grooves at the top to cooperate with the slider 6. The central beam 14 in the main frame has an arc-shaped groove at the bottom with a radius not less than the radius of the connected wire, which, together with the clamp group 2, holds the wire tightly.

[0037] The clamp assembly 2 includes a first clamp 21 and a second clamp 22; both the first clamp 21 and the second clamp 22 are inverted L-shaped structures; the first clamp 21 and the second clamp 22 are symmetrically located at the corners on both sides of the horizontal inner cavity of the main frame; the first rotating shaft 15 and the second rotating shaft 16 pass through the first clamp 21 and the second clamp 22 respectively, forming a rotating connection with respect to the main frame.

[0038] The trigger rod 3 has a T-shaped structure, including a horizontal beam and a vertical beam. The two ends of the horizontal beam are connected to the first clamp 21 and the second clamp 22 respectively. The center beam 14 has a through hole in the center, and the vertical beam and the center hole of the center beam 14 form a column fit. When the first clamp 21 and the second clamp 22 are closed, the end of the vertical beam of the trigger rod 3 cannot extend out of the arc groove at the bottom of the center beam 14. When the first clamp 21 and the second clamp 22 are open, the end of the vertical beam of the trigger rod 3 extends into the arc groove at the bottom of the center beam 14.

[0039] The locking rod assembly 4 includes a first locking rod 41 and a second locking rod 42; the tension / compression spring assembly includes a first tension / compression spring 51 and a second tension / compression spring 52; the large-diameter ends of the first locking rod 41 and the second locking rod 42 are respectively inserted into the spring mounting holes of the upper cover plate 13, and their end faces are respectively in contact with the first tension / compression spring 51 and the second tension / compression spring 52; the locking rod assembly 4 is driven into the clamp 2 by the tension / compression spring assembly to prevent the clamp 2 from rotating; both the first locking rod 41 and the second locking rod 42 are stepped shafts; the large-diameter ends of the first locking rod 41 and the second locking rod 42 are both inserted into the spring mounting holes of the upper cover plate 13; the small-diameter ends of the first locking rod 41 and the second locking rod 42 pass through the through holes on the side ears of the slider 6 and contact the clamp assembly 2; the diameter of the large-diameter end is larger than the diameter of the through hole on the side ears of the slider 6.

[0040] In this invention, the long arms of the first clamp 21 and the second clamp 22 are both located at the bottom, and an arc with the same diameter as the wire is machined at the end of the long arm for clamping the wire; the short arms of the first clamp 21 and the second clamp 22 are both located at the top, and locking holes that cooperate with the small diameter sections of the first locking rod 41 and the second locking rod 42, as well as sliding grooves that cooperate with both ends of the crossbeam of the trigger rod 3 are machined on the short arms.

[0041] The slider 6 is connected to the hook 7 by a thread; the slider 6 is provided with two side lugs, and the through holes of the two side lugs respectively form a pin engagement with the first locking rod 41 and the second locking rod 42. The front and rear ends of the slider 6 are respectively placed in the sliding grooves of the front cover plate 11 and the rear cover plate 12; the middle of the slider 6 is fixed to the hook 7 by a thread; when the hook 7 is pulled, the slider 6 moves along the sliding grooves on the front cover plate 11 and the rear cover plate 12.

[0042] The hook 7 has a top curved rod and bottom straight rod structure. The bottom straight rod of the hook 7 passes downward through the through hole in the center of the upper cover plate 13 and is fixed to the slider 6. The top curved rod of the hook 7 extends upward out of the upper cover plate 13 for connection with the hook of an external drone.

[0043] The working principle of the drone-mounted ground wire attachment / removal device is as follows:

[0044] In the initial state, clamp group 2 is in the closed state, trigger rod 3 is not inserted into the arc groove of center beam 14, locking rod group 4 is inserted into clamp group 2 and is subjected to the elastic force of tension and compression spring group, and the whole device is vertically stationary on the ground.

[0045] During the grounding wire installation, the entire device is first lifted upwards using a drone via hook 7. During this process, since slider 6 and hook 7 are fixedly connected, they move upwards together. Simultaneously, locking rod assembly 4 is moved upwards by slider 6, compressing the tension spring assembly. When the small-diameter end of locking rod assembly 4 is completely pulled out of clamp assembly 2, the ears on both sides of slider 6 contact the end faces of the spring mounting holes in the upper cover plate 13. Continuing to lift upwards, the tension spring assembly is no longer compressed, and the entire device is lifted off the ground. At the same time, clamp assembly 2 rotates under its own weight and the weight of trigger rod 3, opening. Once the drone has lifted the entire device directly above the overhead transmission line conductor, it slowly lowers the device onto the conductor through the inverted V-shaped opening below the device, ensuring the conductor is precisely inserted into the arc-shaped groove below the central beam 14. The length of the inverted V-shaped opening is generally about 20cm, facilitating the drone operator to insert the device into the conductor in one go. During the wire insertion process, the trigger rod 3 is first contacted, and the trigger rod 3 is pushed upward. The crossbeam of the trigger rod 3 forces the clamp assembly 2 to rotate, changing from the open state to the closed state. The wire is clamped tightly. At the same time, the drone is disengaged from the hook 7. Under the action of the spring force 5 and the gravity of the locking rod assembly 4, the locking rod assembly 4 is quickly inserted into the locking hole on the clamp assembly 2. The clamp assembly 2 is locked and cannot rotate, thus completing the connection of the device and realizing the ground wire connection.

[0046] During disassembly, similar to the process of lifting the entire device from the ground, the drone first moves the hook 7 and slider 6 upward, causing the locking rod assembly 4 to move upward and be pulled out of the clamp assembly 2. When the locking rod assembly 4 is fully pulled out, the two ears on both sides of the slider 6 are in contact with the upper cover plate 13. The drone continues to lift upward, the clamp assembly 2 opens, the entire device moves upward and is disconnected from the wire, thus completing the disassembly of the device and removing the ground wire.

[0047] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications to the technical solutions of the present invention by utilizing the methods and techniques disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the protection scope of the technical solutions of the present invention.

Claims

1. A device for hoisting and removing grounding wires for unmanned aerial vehicles (UAVs), characterized in that: It includes a main frame, a clamp assembly (2), a trigger rod (3), a locking rod assembly (4), a tension / compression spring assembly, a slider (6), and a hook (7); The main frame is a hollow frame support structure; the clamp assembly (2) is set in the inner cavity of the main frame; the trigger rod (3) is vertically set in the middle of the clamp assembly (2); the locking rod assembly (4) is vertically installed on the top of the clamp assembly (2); the tension spring assembly is installed on the top of the locking rod assembly (4), and the top of the tension spring assembly contacts the lower surface of the top of the main frame; the slider (6) is horizontally installed in the middle of the locking rod assembly (4); the hook (7) is installed on the top of the slider (6), and the top of the hook (7) extends upward out of the main frame; The main frame includes a front cover plate (11), a rear cover plate (12), an upper cover plate (13), a central beam (14), a first pivot (15), a second pivot (16), and a ground wire connection plate (17). Among them, the front cover plate (11) and the rear cover plate (12) are vertically symmetrically arranged; the upper cover plate (13) is horizontally arranged on the top of the front cover plate (11) and the rear cover plate (12); the bottom of the front cover plate (11) and the rear cover plate (12) has an inverted V-shaped opening structure; the central beam (14) is arranged on the top of the inverted V-shaped opening structure; the first rotating shaft (15) and the second rotating shaft (16) are horizontally symmetrically arranged; the axial ends of the first rotating shaft (15) are respectively connected to the front cover plate (11) and the rear cover plate (12); the axial ends of the second rotating shaft (16) are respectively connected to the front cover plate (11) and the rear cover plate (12); the first rotating shaft (15) and the second rotating shaft (16) are respectively located on the top two sides of the front cover plate (11); the ground wire connecting plate (17) is vertically arranged between the front cover plate (11) and the rear cover plate (12), and is located at the bottom of the front cover plate (11); The locking rod assembly (4) includes a first locking rod (41) and a second locking rod (42); the tension spring assembly includes a first tension spring (51) and a second tension spring (52); the large-diameter ends of the first locking rod (41) and the second locking rod (42) are respectively inserted into the spring mounting holes of the upper cover plate (13), and their end faces are respectively in contact with the first tension spring (51) and the second tension spring (52); the locking rod assembly (4) is driven by the tension spring assembly to be inserted into the clamp assembly (2) to prevent the clamp assembly (2) from rotating; Both the first locking rod (41) and the second locking rod (42) are stepped shafts; the large-diameter ends of the first locking rod (41) and the second locking rod (42) are inserted into the spring mounting holes of the upper cover plate (13); the small-diameter ends of the first locking rod (41) and the second locking rod (42) pass through the through holes on the side ears of the slider (6) and contact the clamp assembly (2); the diameter of the large-diameter end is greater than the diameter of the through holes on the side ears of the slider (6).

2. The UAV grounding wire hoisting and dismantling device according to claim 1, characterized in that: The bottom of the central beam (14) is provided with an arc-shaped groove, the radius of which is not less than the radius of the connected wire; the central beam (14) and the clamp assembly (2) work together to hold the wire tightly.

3. The UAV grounding wire hoisting and dismantling device according to claim 2, characterized in that: The clamp assembly (2) includes a first clamp (21) and a second clamp (22); The first clamp (21) and the second clamp (22) are both inverted L-shaped structures; the first clamp (21) and the second clamp (22) are symmetrically located at the corners on both sides of the horizontal inner cavity of the main frame; the first rotating shaft (15) and the second rotating shaft (16) pass through the first clamp (21) and the second clamp (22) respectively, forming a rotating connection with respect to the main frame.

4. The UAV grounding wire hoisting and detaching device according to claim 3, characterized in that: The trigger rod (3) has a T-shaped structure, including a horizontal beam and a vertical beam. The two ends of the horizontal beam are connected to the first clamp (21) and the second clamp (22) respectively. The center beam (14) has a through hole in the center, and the vertical beam and the center hole of the center beam (14) form a column fit. When the first clamp (21) and the second clamp (22) are closed, the end of the vertical beam of the trigger rod (3) cannot extend out of the arc groove at the bottom of the center beam (14). When the first clamp (21) and the second clamp (22) are open, the end of the vertical beam of the trigger rod (3) extends into the arc groove at the bottom of the center beam (14).

5. The UAV grounding wire hoisting and detaching device according to claim 4, characterized in that: The slider (6) and the hook (7) are connected by threads; the slider (6) is provided with two side ears, and the through holes of the two side ears are respectively engaged with the first locking rod (41) and the second locking rod (42).

6. The UAV grounding wire hoisting and detaching device according to claim 5, characterized in that: The hook (7) is a top curved rod and bottom straight rod structure. The bottom straight rod of the hook (7) passes downward through the through hole in the center of the upper cover plate (13) and is fixed to the slider (6). The top curved rod of the hook (7) extends upward out of the upper cover plate (13) for connection with the hook of the external drone.

7. The UAV grounding wire hoisting and detaching device according to claim 6, characterized in that: The long arms of the first clamp (21) and the second clamp (22) are both located at the bottom, and an arc with the same diameter as the wire is machined at the end of the long arm for clamping the wire; the short arms of the first clamp (21) and the second clamp (22) are both located at the top, and locking holes that cooperate with the small diameter sections of the first locking rod (41) and the second locking rod (42) and sliding grooves that cooperate with the two ends of the crossbeam of the trigger rod (3) are machined on the short arms.

8. The UAV grounding wire hoisting and detaching device according to claim 7, characterized in that: The front and rear ends of the slider (6) are respectively placed in the grooves of the front cover plate (11) and the rear cover plate (12); the middle of the slider (6) is fixed to the hook (7) by a thread; when the hook (7) is pulled, the slider (6) moves along the grooves on the front cover plate (11) and the rear cover plate (12).

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