Unmanned aerial vehicle and method for cleaning foreign matters on communication line

Abstract

The invention discloses an unmanned aerial vehicle and method for cleaning foreign matters on a communication line, and relates to the technical field of unmanned aerial vehicle inspection. The unmanned aerial vehicle for cleaning the foreign matter on the communication line comprises a rotary camera, the visual angle of the rotary camera is enlarged through 360-degree rotation, the rotating end of a stepping motor is connected with a positioning piece through a traction rope, the positioning piece is used for being matched with and abutting against the top of the communication line in the falling process, the two ends of a cutting strip are connected with end plates, and a resistance wire is wound around the side face of a rod body; and the thermal expansion sheet is used for pushing the cutting plate under the action of temperature rise. According to the unmanned aerial vehicle and method for cleaning the foreign matter on the communication line, the traction structure drives the positioning piece to move downwards and be matched with the communication line, the positioning piece and the communication line are kept static relatively, sundries such as plastic bags and miscellaneous lines wound on the communication line are softened, movement of cutting strips and thermal expansion pieces is limited, irreversible deformation of the thermal expansion pieces is avoided, and the communication line foreign matter cleaning efficiency is improved. And an insulating layer on the communication line is protected.

Description

Technical Field

[0001] The present invention relates to the technical field of drone inspection, and in particular to a drone and method for cleaning foreign matter from communication lines. Background Art

[0002] Workers use drones to survey and inspect communication lines and tower stations, shifting the communications O&M paradigm from passive maintenance to proactive prevention. Its efficient, secure, and intelligent features support the stable operation of communication networks for billions of users worldwide, laying the foundation for digital and intelligent O&M in the new infrastructure era.

[0003] Referring to Chinese Patent Publication No.: CN114275177A, the intelligent inspection device of the unmanned aerial vehicle includes a body, the front side of the body is provided with a laser radar device, a camera, and a gas generator, the lower side of the body is provided with a cleaning arm and a heat-melting arm, the cleaning arm and the heat-melting arm each include a support frame, a shell, a screw, a third motor and a sliding extension shell, the third motor is provided on the rear side of the shell, the screw is fixedly connected to the output end of the third motor and is threadedly connected to the center of the support frame. By installing a cleaning arm and a heat-melting arm that can be extended and adjusted in length and angle on the unmanned aerial vehicle, when cleaning ice hanging, the electric heating module heats the air ejected from the compressed gas bottle, and then ejects it from the heat-melting arm to quickly melt the ice hanging, and the water in the water chamber is pressurized by the gas generator, and then enters the cleaning arm and is atomized and ejected at high speed, so that dust or bird droppings on the line can be cleaned.

[0004] Plastic bags, miscellaneous wires and other debris entangled on communication wires may cause systemic communication accidents through a chain of physical damage, electrical failures, and safety risks, and need to be dealt with in a timely manner. Since the construction areas of communication wires are mostly at high altitudes, they can be cleaned by drones, but the entanglements are complex in shape and firmly connected to the communication wires, making them difficult to be directly hooked by a manipulator; laser cleaning is used to avoid damaging the insulation layer of the communication wires, and only fine cutting is performed on the entangled areas. The laser cleaning device has high requirements for precision and low adaptability; although drones mostly work in clear and windless environments, turbulence in the air and weak wind may cause the drone to shake slightly during work, affecting the accuracy of the operation, increasing the difficulty of cleaning, and extending the cleaning time. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a drone and method for cleaning foreign objects from communication lines. The drone uses a traction structure to move the positioning part downward and adapt it to the communication line. The positioning part and the communication line remain relatively stationary. Plastic bags, miscellaneous wires and other debris wrapped around the communication line are softened by heating, limiting the movement of the cut strips and thermal expansion plates, avoiding irreversible deformation of the thermal expansion plates, preventing the cut strips from contacting the communication line, and protecting the insulation layer on the communication line.

[0006] Technical solution: To achieve the above purpose, the present invention is implemented through the following technical solution: A drone for cleaning foreign objects in communication lines, comprising: a rotating camera, which is connected to the bottom of one end of the body, and the rotating camera expands the viewing angle by rotating 360°. The top of the bottom plate of the body is connected to a stepper motor and a power supply. The rotating end of the stepper motor is connected to a positioning member through a traction rope. The positioning member is used to adapt to and abut against the top of the communication line during the falling process. A cutting strip is provided on one side of the positioning member, and both ends of the cutting strip are connected to end plates. A rod body is connected between the two end plates, and a resistance wire is wound around the side of the rod body. The resistance wire is electrically connected to the power supply through a wire. A plurality of equidistantly distributed thermal expansion plates are connected to the side of the end plate away from the cutting strip, and the thermal expansion plates are used to push the cutting plate under the action of temperature rise.

[0007] Preferably, the thermal expansion plate is made of aluminum, the cut strip is made of any one of an iron-chromium-aluminum alloy or a nickel-based high-temperature alloy, the expansion coefficient of the thermal expansion plate is higher than the expansion coefficient of the cut strip, the specific heat capacity of the thermal expansion plate is lower than the specific heat capacity of the cut strip, and the temperature of the cut strip is 120°C-180°C.

[0008] Preferably, the rotating part of the stepper motor is connected to a winding rod, a fixed pulley is provided on one side of the winding rod, the fixed pulley is connected to the bottom plate of the machine body, one end of the traction rope is connected to the winding rod, the traction rope is wound around the fixed pulley, the bottom end of the traction rope is connected to the bottom of the movable plate, both ends of the movable plate are connected to a threaded cylinder through a vertical plate, the threaded cylinder is threadedly connected to a threaded rod, one end of the threaded rod is fixedly connected to the positioning member, a sliding groove is provided inside the movable plate, a limiting groove is provided on the side of the movable plate away from the rotating camera, and the longitudinal axis of the rotating camera and the longitudinal axis of the positioning member are located in the same straight line.

[0009] Preferably, the positioning member includes: a guide arc plate, there are two guide arc plates, the guide arc plates are arranged below the rotating camera, the two guide arc plates are symmetrically distributed along the longitudinal axis of the rotating camera, the top of each guide arc plate is connected to a cover plate through a straight plate, the cover plate is nearly a quarter-circular plate, and the two cover plates form a top plate, the top of the cover plate is connected to a cross plate, a connecting block is located at the center of the upper surface of the cross plate, the top of the connecting block is connected to a slider, the slider is slidably connected to the slide groove, the side of the straight plate is connected to one end of the threaded rod, the side of the straight plate is connected to a fixed outer plate through a fixed plate, and the top of the outer plate is connected to the side of the cover plate through another fixed plate.

[0010] Preferably, the distance between the two straight plates is changed by twisting the threaded rod and is made equal to the diameter of the communication line, and each time the two threaded rods move in opposite directions along the horizontal direction and move the same distance.

[0011] Preferably, a top groove is provided on the top of the straight plate, and side grooves are provided at both ends of the top of the straight plate, and the two side grooves are connected to the top groove, and both ends of the top groove away from the outer plate are connected to limit plates, and the limit plates are used to limit the movement of the end plates, and the bottom of the cutting strip is slidably connected to the top groove, and a connecting plate is provided between the two end plates, and the rod body is provided between the connecting plate and the cutting strip, and one side of the thermal expansion plate is connected to the side of the connecting plate away from the cutting strip, and a through hole is provided on the side of the end plate close to the longitudinal axis of the rod body, and one end of the rod body is inserted into the through hole and connected to the inner wall of the through hole, and the bottom end of the wire passes through the edge and is electrically connected to the resistance wire, and the thermal expansion plate is a continuous V-shaped plate.

[0012] Preferably, the thermal expansion piece is slidably connected to the inner wall of the outer plate, and the thermal expansion piece expands when heated, and one end of the thermal expansion piece expands toward the direction close to the cutting strip. When the end plate abuts the limit plate, the side of the cutting strip close to the longitudinal axis of the rotating camera and the side of the straight plate close to the longitudinal axis of the rotating camera are in the same plane.

[0013] Preferably, the guide arc plate, straight plate, cover plate and cross plate are all made of insulating materials, the material at the junction of the straight plate and the cover plate is either glass fiber or silicone rubber, the distance between the two guide arc plates gradually increases along the vertical direction, and the distance between the tops of the two guide arc plates is greater than the distance between the bottoms of the two guide arc plates.

[0014] A method includes a drone for cleaning foreign matter from a communication line, wherein a threaded rod is screwed to drive a straight plate, a cover plate, a horizontal plate, and a slider to change the distance between the two cover plates, and the radius of a top plate formed by the two cover plates is adjusted to match the diameter of the communication line. A rotary camera is rotated with the lens facing vertically downward, and the drone is hovered above the communication line so that the longitudinal axis of the rotary camera approaches the longitudinal axis of the communication line. A stepper motor rotates, and a traction rope moves a positioning member in a vertical direction, so that a guide arc plate approaches and contacts the top of the communication line. As the guide arc plate moves downward, the two guide arc plates at the top of the communication line are moved vertically. The distance gradually decreases, the guide arc plate and the communication line slide against each other, and during the downward movement of the positioning part, the longitudinal axis of the positioning part approaches the longitudinal axis of the communication line and finally coincides with the longitudinal axis of the communication line. The positioning part covers the top of the communication line, and the communication line supports the positioning part. The traction rope continues to be released, and the traction rope is in a relaxed state. A slight shaking of the drone will not affect the stability of the positioning part. The resistance wire is heated, and under the action of heat conduction and heat radiation, the temperature of the cut strip and the thermal expansion plate increases, and the two ends of the thermal expansion plate move outward. The thermal expansion plate pushes the cut strip to move toward the direction close to the communication line. In this process, the high-temperature cut strip softens the debris on the path.

[0015] Beneficial Effects: The present invention provides a drone and method for cleaning foreign matter from communication lines. Compared with the prior art, the present invention has the following beneficial effects: 1. It has a simple and compact structure, low weight, and is easy to suspend on a drone. It is recyclable and can be moved downward with the traction structure to adapt to the communication line. The positioning member is supported by the communication line, reducing the impact of external forces on the positioning member. The positioning member and the communication line remain relatively stationary. By heating, debris such as plastic bags and miscellaneous wires wrapped around the communication line are softened, limiting the movement of the cut strips and thermal expansion plates, avoiding irreversible deformation of the thermal expansion plates, preventing the cut strips from contacting the communication line, and protecting the insulation layer on the communication line.

[0016] 2. The guide arc plate moves downward, and the communication line is located between the two guide arc plates. As the guide arc plate moves downward, the distance between the two guide arc plates at the top of the communication line gradually decreases, and the arc surface on the side of the two guide arc plates that are close to each other contacts the communication line. The guide arc plate and the communication line slide against each other, and the longitudinal axis of the guide piece moves toward the direction close to the longitudinal axis of the communication line. Finally, the longitudinal axis of the guide piece coincides with or is close to the longitudinal axis of the communication line, and the traction rope between the positioning piece and the fixed pulley is loose. When the UAV moves slightly during the hovering process, the positioning piece and the communication line are relatively stationary and will not affect the cleaning operation.

[0017] 3. The thermal expansion piece is made of aluminum, which has a high expansion level among commonly used metals. The thermal expansion piece is a continuous V-shaped piece. One end and the upper and lower sides of the thermal expansion piece are fixedly connected to the inner wall of the outer plate. The free end of the thermal expansion piece has a larger expansion displacement and the V-angle changes more significantly, which makes it easier for the thermal expansion piece to move with the cut strip toward the direction close to the communication line.

[0018] 4. The limit plate can limit the movement of the end plate, the movement distance of the end plate and the cut strip is small, and the deformation of the thermal expansion piece is avoided too drastically. The deformation of the thermal expansion piece is constrained to facilitate the subsequent restoration of the thermal expansion piece to its original shape and extend the service life of the thermal expansion piece. It can also limit the distance of the cut strip from moving outward to avoid direct contact between the cut strip and the insulation layer of the communication line. The insulation layer can only be heated by thermal radiation, which prevents the insulation layer from heating too quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present application and, together with the description, further serve to explain the principles of the present application and enable those skilled in the relevant art to make and use the present application.

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 This is a schematic diagram of the structure after removing the top shell of the fuselage.

[0023] Figure 3 This is a structural diagram of the body base, power supply, stepper motor, and guide arc plate.

[0024] Figure 4 for Figure 3 Schematic diagram of the structure after removing the bottom plate of the fuselage.

[0025] Figure 5 It is a structural diagram of the part where the shift plate is located and the part where the guide arc plate is located.

[0026] Figure 6 It is a structural diagram of the part where the shift plate is located.

[0027] Figure 7 It is a cross-sectional schematic diagram of the shift plate.

[0028] Figure 8 This is a structural diagram of the part where the guide arc plate is located.

[0029] Figure 9 It is a structural diagram of the guide arc plate, straight plate, cover plate, cross plate, slider and outer plate.

[0030] Figure 10 It is a structural diagram of the straight plate, cover plate, outer plate and fixed plate.

[0031] Figure 11 This is a diagram of the separation of the straight plate and the cover plate.

[0032] Figure 12 for Figure 11 Schematic diagram of the structure after removing the cover.

[0033] Figure 13 for Figure 12 Exploded view after removing the straight board.

[0034] The accompanying drawings are marked as follows: 11, body; 12, supporting feet; 13, rotating camera; 21, stepping motor; 22, winding shaft; 23, traction rope; 24, fixed pulley; 25, moving plate; 26, vertical plate; 27, threaded barrel; 28, threaded rod; 31, slide groove; 32, limiting hole; 33, top groove; 34, side groove; 35, channel; 4, positioning part; 41, guide arc plate; 42, straight plate; 43, cover plate; 44, horizontal plate; 45, connecting block; 46, slider; 47, outer plate; 48, fixed plate; 49, limiting plate; 51, cutting strip; 52, end plate; 53, connecting plate; 54, rod body; 55, resistance wire; 56, thermal expansion plate; 61, power supply; 62, wire.

[0035] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the appended claims. DETAILED DESCRIPTION

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0037] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0038] Example 1: Figure 1 - Figure 9As shown, an embodiment of the present invention provides a drone for cleaning foreign objects from communication lines, including: a rotating camera 13, the rotating camera 13 is connected to the bottom of one end of the body 11, the rotating camera 13 expands the viewing angle by rotating 360°, the top of the bottom plate of the body 11 is connected to a stepper motor 21 and a power supply 61, the rotating end of the stepper motor 21 is connected to a positioning member 4 through a traction rope 23, and the positioning member 4 is used to adapt to and abut against the top of the communication line during the falling process.

[0039] The rotating part of the stepper motor 21 is connected to a winding rod, and a fixed pulley 24 is provided on one side of the winding rod. The fixed pulley 24 is connected to the bottom plate of the body 11, and one end of the traction rope 23 is connected to the winding rod. The traction rope 23 is wound around the fixed pulley 24, and the bottom end of the traction rope 23 is connected to the bottom of the movable plate 25. Both ends of the movable plate 25 are connected to a threaded cylinder 27 through a vertical plate 26. The threaded cylinder 27 is threadedly connected to a threaded rod 28, and one end of the threaded rod 28 is fixedly connected to the positioning member 4. A sliding groove 31 is provided inside the movable plate 25, and a limiting groove is provided on the side of the movable plate 25 away from the rotating camera 13. The longitudinal axis of the rotating camera 13 and the longitudinal axis of the positioning member 4 are located in the same straight line.

[0040] The distance between the two straight plates 42 is changed by twisting the threaded rod 28 and made equal to the diameter of the communication line. Each time, the two threaded rods 28 move in opposite directions along the horizontal direction and move the same distance.

[0041] The positioning member 4 includes: a guide arc plate 41, there are two guide arc plates 41, the guide arc plates 41 are arranged below the rotating camera 13, and the two guide arc plates 41 are symmetrically distributed according to the longitudinal axis of the rotating camera 13. The top of each guide arc plate 41 is connected to a cover plate 43 through a straight plate 42. The cover plate 43 is a nearly quarter-circular plate. The two cover plates 43 form a top plate. The top of the cover plate 43 is connected to a cross plate 44, and a connecting block 45 is located at the center of the upper surface of the cross plate 44. The top of the connecting block 45 is connected to a slider 46, and the slider 46 is slidably connected to the slide groove 31. The side of the straight plate 42 is connected to one end of the threaded rod 28. The side of the straight plate 42 is connected to a fixed outer plate 47 through a fixed plate 48. The top of the outer plate 47 is connected to the side of the cover plate 43 through another fixed plate 48.

[0042] The guide arc plate 41, the straight plate 42, the cover plate 43, and the horizontal plate 44 are all made of insulating materials. The material at the junction of the straight plate 42 and the cover plate 43 is either glass fiber or silicone rubber. The distance between the two guide arc plates 41 gradually increases in the vertical direction, and the distance between the tops of the two guide arc plates 41 is greater than the distance between the bottoms of the two guide arc plates 41.

[0043] A method includes a drone for cleaning foreign matter from a communication line, wherein a threaded rod 28 is screwed to drive a straight plate 42, a cover plate 43, a horizontal plate 44, and a slider 46, thereby changing the distance between the two cover plates 43 and adjusting the radius of a top plate formed by the two cover plates 43 to match the diameter of the communication line. A rotating camera 13 is rotated and the lens is vertically downward. The drone is hovered above the communication line so that the longitudinal axis of the rotating camera 13 approaches the longitudinal axis of the communication line. A stepper motor 21 is rotated, and a traction rope 23 carries a positioning member 4 in a vertical direction. As the guide arc plate 41 moves downward, the distance between the two guide arc plates 41 at the top of the communication line gradually decreases, and the guide arc plate 41 and the communication line slide against each other. During the downward movement of the positioning member 4, the longitudinal axis of the positioning member 4 approaches the longitudinal axis of the communication line and finally coincides with it. The positioning member 4 covers the top of the communication line, and the communication line supports the positioning member 4. The traction rope 23 continues to be released, and the traction rope 23 is in a relaxed state. A slight shaking of the drone will not affect the stability of the positioning member 4.

[0044] When in use, first determine the diameter of the communication line to be cleaned, and then turn the two threaded rods 28 in turn. Each time the threaded rod 28 rotates one circle, the threaded rod 28 pushes the straight plate 42 to move horizontally by 0.2 mm. First determine the difference d between the current spacing between the two straight plates 42 (the spacing between the two straight plates 42 is equal to the diameter of the top plate) and the diameter of the communication line. The distance moved by each threaded rod 28 is 0.5 d. After calculating the number of circles of the threaded rod 28 and twisting the threaded rod 28, the threaded rod 28 sequentially moves the straight plate 42 and the guide arc plate 42. 1. The cover plate 43, the horizontal plate 44, the connecting block 45, and the slider 46 move along the direction of the slide groove 31 so that the distance between the two straight plates 42 is equal to the diameter of the communication line or the distance between the two straight plates 42 is slightly larger than the diameter of the communication line. The two cover plates 43 form a top plate. The top plate is a semicircular plate, and the diameter of the top plate is also equal to the diameter of the communication line or slightly larger than the diameter of the communication line. The diameter of the top plate is not less than the diameter of the communication line in order to increase the contact area between the top plate and the side of the communication line and ensure that the top plate and the top cover of the communication line are closed together.

[0045] The rotating camera 13 is rotated and the lens is directed vertically downward, and the drone is moved. The relative position of the drone and the communication line can be simply determined by whether the communication line in the camera image is in the center of the image. When the communication line is in the center of the image, the longitudinal axis of the rotating camera 13 and the longitudinal axis of the communication line are in the same straight line or close to each other, which will not affect the adaptation of the guide piece and the communication line, thus simplifying the operation and facilitating the determination.

[0046] The UAV keeps hovering, and the stepper motor 21 is started. The rotating part of the stepper motor 21 rotates with the winding rod, and the traction rope 23 on the winding rod is released. Under the action of gravity, the positioning member 4 moves down with the traction rope 23. Through the limitation of the fixed pulley 24, the traction rope 23 moves in the vertical direction under normal conditions (under the influence of wind, the UAV is hovering), and the guide arc plate 41 moves down. The communication line is located between the two guide arc plates 41. As the guide arc plate 41 moves down, the distance between the two guide arc plates 41 at the top of the communication line gradually decreases. The arc surface of the two guide arc plates 41 that are close to each other contacts the communication line, and the guide arc plate 41 and the communication line slide against each other. The longitudinal axis of the guide member is toward the longitudinal axis of the communication line. The line moves in the direction of movement, and finally the communication line is located between the two straight plates 42. At this time, the longitudinal axis of the guide piece coincides with or is close to the longitudinal axis of the communication line (when the distance between the two straight plates 42 is close to but not equal to the diameter of the communication line, the longitudinal axis of the guide piece does not necessarily coincide with the longitudinal axis of the communication line, but it does not affect the adaptation of the positioning piece 4 and the communication line during the downward movement), the positioning piece 4 continues to move downward, the cover plate 43 contacts the communication line, the communication line adapts to the cover plate 43, the communication line supports the cover plate 43, the traction rope 23 continues to be released, and the traction rope 23 between the positioning piece 4 and the fixed pulley 24 is loose. When the UAV moves slightly during the hovering process, the positioning piece 4 and the communication line are relatively stationary, which will not affect the cleaning operation.

[0047] Example 2: Figure 8 - Figure 13 As shown, an embodiment of the present invention provides a drone for cleaning foreign objects from communication lines. A cutting strip 51 is provided on one side of the positioning member 4. Both ends of the cutting strip 51 are connected to end plates 52. A rod body 54 is connected between the two end plates 52. A resistance wire 55 is wound around the side of the rod body 54. The resistance wire 55 is electrically connected to a power supply 61 through a wire 62. A plurality of equidistantly distributed thermal expansion plates 56 are connected to the side of the end plate 52 away from the cutting strip 51. The thermal expansion plates 56 are used to push the cutting plate under the action of temperature rise.

[0048] The thermal expansion piece 56 is made of aluminum, and the cut strip 51 is made of any one of an iron-chromium-aluminum alloy or a nickel-based high-temperature alloy. The expansion coefficient of the thermal expansion piece 56 is higher than the expansion coefficient of the cut strip 51, and the specific heat capacity of the thermal expansion piece 56 is lower than the specific heat capacity of the cut strip 51. The temperature of the cut strip 51 is 120°C-180°C.

[0049] Most communication wires are insulated with polyethylene (PE) or polyvinyl chloride (PVC), which has a short-term heat resistance of approximately 60-80°C and may deform at temperatures exceeding 100°C. The melting point of the wrapped rope / plastic tape (such as nylon rope and PP plastic tape) is generally between 150-250°C. The hot melt tool temperature should be controlled between 120-180°C. The hot melt tool should be in direct contact with the wrapped material on the communication wire, not the insulation. Heat will be lost during both heat conduction and heat radiation, causing the maximum temperature of the communication wire insulation to fall below the insulation's tolerance limit while still being sufficient to soften the wrapped material. The rope / plastic tape should only be softened to a peelable state, rather than completely melted into a liquid state, to prevent the molten liquid from seeping into the gaps in the wires.

[0050] A top groove 33 is provided at the top of the straight plate 42, and side grooves 34 are provided at both ends of the top of the straight plate 42. The two side grooves 34 are connected to the top groove 33. Both ends of the top groove 33 away from the outer plate 47 are connected to the limit plates 49. The limit plates 49 are used to limit the movement of the end plate 52. The bottom of the cutting strip 51 is slidably connected to the top groove 33. A connecting plate 53 is provided between the two end plates 52. The rod body 54 is provided between the connecting plate 53 and the cutting strip 51. One side of the thermal expansion piece 56 is connected to the side of the connecting plate 53 away from the cutting strip 51. A through hole is provided on the side of the end plate 52 close to the longitudinal axis of the rod body 54. One end of the rod body 54 is inserted into the through hole and connected to the inner wall of the through hole. The bottom end of the wire 62 passes through the edge and is electrically connected to the resistance wire 55. The thermal expansion piece 56 is a continuous V-shaped plate.

[0051] The thermal expansion piece 56 is slidably connected to the inner wall of the outer plate 47. The thermal expansion piece 56 expands due to heat, and one end of the thermal expansion piece 56 expands toward the direction close to the cutting strip 51. When the end plate 52 abuts against the limit plate 49, the side of the cutting strip 51 close to the longitudinal axis of the rotating camera 13 and the side of the straight plate 42 close to the longitudinal axis of the rotating camera 13 are in the same plane.

[0052] The resistance wire 55 is heated. Due to heat conduction and heat radiation, the temperature of the cut strip 51 and the thermal expansion piece 56 increases. The two ends of the thermal expansion piece 56 move outward, and the thermal expansion piece 56 pushes the cut strip 51 toward the communication line. In this process, the high-temperature cut strip 51 softens the debris on the path.

[0053] When in use, the power supply 61 is started, the resistance wire 55 generates heat, the rod body 54 is connected to the cut strip 51, and the cut strip 51 and the thermal expansion piece 56 are heated under the action of heat conduction and heat radiation. A heat dissipation or heat insulation device can be installed on the thermal expansion piece 56 to make the maximum temperature of the thermal expansion piece 56 less than 180 degrees Celsius to prevent the thermal expansion piece 56 from rising to the annealing temperature and causing permanent deformation. The thermal expansion piece 56 is made of aluminum, which has a high expansion level among commonly used metals, and the thermal expansion piece 56 is a continuous V-shaped piece. One end and both the upper and lower sides of 56 are fixedly connected to the inner wall of the outer plate 47. The free end of the thermal expansion piece 56 expands and displaces more significantly, and the V-angle changes more significantly. The thermal expansion piece 56 moves with the cut strip 51 toward the communication line. The limit plate 49 limits the movement of the end plate 52. The end plate 52 and the cut strip 51 move a small distance, preventing the thermal expansion piece 56 from deforming too drastically. The deformation of the thermal expansion piece 56 is restrained, facilitating the subsequent restoration of the thermal expansion piece 56 to its original shape, thereby extending the service life of the thermal expansion piece 56. When the end plate 52 contacts the limit plate 49, the side of the cut strip 51 near the communication line is in the same plane as the side of the straight plate 42 near the communication line. This also limits the outward movement of the cut strip 51, preventing the cut strip 51 from directly contacting the insulation layer of the communication line. The insulation layer can only heat up through thermal radiation, preventing the insulation layer from heating up too quickly. The instantaneous temperature of the insulation layer is no more than 150 degrees Celsius, thus protecting the insulation layer. As the expansion piece 56 moves, it softens the plastic bags and other wires wrapped around the communication line. The stickiness of the melted residue increases as the temperature decreases, so it must be removed promptly with a hook or other device while it is softened. After removal, the amount of residual material at the cleaning location must be inspected. If it does not meet the cleaning standards (no adherent fibers or plastic fragments attached to the wire, a smooth surface with no sharp protrusions or melt residue, and a residual amount ≤ 5% of the wire's outer diameter), it is considered to meet the standards; otherwise, it is considered to be substandard), and further cleaning or manual cleaning is required.

[0054] The structure is simple and compact, the weight is low, it is convenient for drone suspension, and it can be recycled. It moves downward with the traction structure and adapts to the communication line. The positioning part 4 is supported by the communication line to reduce the influence of external force on the positioning part 4. The positioning part 4 and the communication line remain relatively stationary. The plastic bags, miscellaneous wires and other debris wrapped around the communication line are softened by heating, and the movement of the cutting strip 51 and the thermal expansion piece 56 is restricted to avoid irreversible deformation of the thermal expansion piece 56, prevent the cutting strip 51 from contacting the communication line, and protect the insulation layer on the communication line. It can meet the cleaning needs of most entanglements in daily situations and has wide adaptability.

[0055] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. While specific details are described in detail in the preferred embodiments of the present invention to provide a thorough understanding of the present invention, those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0056] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A drone for cleaning foreign matter from communication lines, characterized in that: include: A rotating camera (13) is connected to the bottom of one end of a body (11), and the rotating camera (13) expands the viewing angle by rotating 360 degrees. A stepper motor (21) and a power supply (61) are connected to the top of the bottom plate of the body (11). The rotating end of the stepper motor (21) is connected to a positioning member (4) through a traction rope (23). The positioning member (4) is used to adapt to and abut against the top of the communication line during the falling process. One side of the positioning member (4) A cutting strip (51) is provided, both ends of the cutting strip (51) are connected to end plates (52), a rod body (54) is connected between the two end plates (52), a resistance wire (55) is wound around the side of the rod body (54), and the resistance wire (55) is electrically connected to a power supply (61) through a wire (62), and a side of the end plate (52) away from the cutting strip (51) is connected to a plurality of equidistantly distributed thermal expansion plates (56), and the thermal expansion plates (56) are used to push the cutting plate under the action of temperature rise.

2. The drone for cleaning foreign matter from communication lines according to claim 1, characterized in that: The thermal expansion piece (56) is made of aluminum, and the cut strip (51) is made of any one of an iron-chromium-aluminum alloy or a nickel-based high-temperature alloy. The expansion coefficient of the thermal expansion piece (56) is higher than the expansion coefficient of the cut strip (51), and the specific heat capacity of the thermal expansion piece (56) is lower than the specific heat capacity of the cut strip (51). The temperature of the cut strip (51) is 120°C-180°C.

3. The drone for cleaning foreign matter from communication lines according to claim 1, characterized in that: The rotating part of the stepping motor (21) is connected to a winding rod, a fixed pulley (24) is provided on one side of the winding rod, the fixed pulley (24) is connected to the bottom plate of the machine body (11), one end of the traction rope (23) is connected to the winding rod, the traction rope (23) is wound around the fixed pulley (24), the bottom end of the traction rope (23) is connected to the bottom of the moving plate (25), both ends of the moving plate (25) are connected to a threaded cylinder (27) through a vertical plate (26), the threaded cylinder (27) is threadedly connected to a threaded rod (28), one end of the threaded rod (28) is fixedly connected to the positioning member (4), a sliding groove (31) is provided inside the moving plate (25), a limiting groove is provided on the side of the moving plate (25) away from the rotating camera (13), and the longitudinal axis of the rotating camera (13) and the longitudinal axis of the positioning member (4) are located in the same straight line.

4. The drone for cleaning foreign matter from communication lines according to claim 1, characterized in that: The positioning member (4) comprises: a guide arc plate (41), wherein the guide arc plates (41) are two in total, and the guide arc plates (41) are arranged below the rotating camera (13). The two guide arc plates (41) are symmetrically distributed along the longitudinal axis of the rotating camera (13). The top of each guide arc plate (41) is connected to a cover plate (43) through a straight plate (42). The cover plate (43) is a nearly quarter-circular plate. The two cover plates (43) form a top plate. The top of the cover plate (43) is connected to the top plate. A horizontal plate (44) is connected, a connecting block (45) is provided at the center of the upper surface of the horizontal plate (44), a slider (46) is connected to the top of the connecting block (45), and the slider (46) is slidably connected to the slide groove (31). The side of the straight plate (42) is connected to one end of the threaded rod (28), and the side of the straight plate (42) is connected to a fixed outer plate (47) through a fixed plate (48), and the top of the outer plate (47) is connected to the side of the cover plate (43) through another fixed plate (48).

5. The drone for cleaning foreign matter from communication lines according to claim 4, characterized in that: The distance between the two straight plates (42) is changed by twisting the threaded rod (28) and the distance between the two straight plates (42) is made equal to the diameter of the communication line. Each time, the two threaded rods (28) move in opposite directions along the horizontal direction and move the same distance.

6. The drone for cleaning foreign matter from communication lines according to claim 4, characterized in that: A top groove (33) is provided on the top of the straight plate (42), and side grooves (34) are provided at both ends of the top of the straight plate (42). Both side grooves (34) are connected to the top groove (33), and both ends of the top groove (33) away from the outer plate (47) are connected to a limiting plate (49), and the limiting plate (49) is used to limit the movement of the end plate (52). The bottom of the cutting strip (51) is slidably connected to the top groove (33), and a connecting plate (51) is provided between the two end plates (52). 3), the rod body (54) is arranged between the connecting plate (53) and the cutting strip (51), one side of the thermal expansion piece (56) is connected to the side of the connecting plate (53) away from the cutting strip (51), and a through hole is opened on the side of the end plate (52) close to the longitudinal axis of the rod body (54), one end of the rod body (54) is inserted into the through hole and connected to the inner wall of the through hole, the bottom end of the wire (62) passes through the edge and is electrically connected to the resistance wire (55), and the thermal expansion piece (56) is a continuous V-shaped plate.

7. The drone for cleaning foreign matter from communication lines according to claim 1, characterized in that: The thermal expansion piece (56) is slidably connected to the inner wall of the outer plate (47). When the thermal expansion piece (56) is heated and expanded, one end of the thermal expansion piece (56) unfolds in a direction close to the cutting strip (51). When the end plate (52) abuts against the limiting plate (49), the side of the cutting strip (51) close to the longitudinal axis of the rotating camera (13) and the side of the straight plate (42) close to the longitudinal axis of the rotating camera (13) are located in the same plane.

8. The drone for cleaning foreign matter from communication lines according to claim 4, characterized in that: The guide arc plate (41), the straight plate (42), the cover plate (43), and the transverse plate (44) are all made of insulating materials. The material at the junction of the straight plate (42) and the cover plate (43) is either glass fiber material or silicone rubber material. The distance between the two guide arc plates (41) gradually increases along the vertical direction, and the distance between the tops of the two guide arc plates (41) is greater than the distance between the bottoms of the two guide arc plates (41).

9. A method comprising the drone for cleaning foreign matter from communication lines according to any one of claims 1 to 8, characterized in that: The threaded rod (28) is screwed and drives the straight plate (42), the cover plate (43), the horizontal plate (44), and the slider (46), thereby changing the distance between the two cover plates (43), adjusting the radius of the top plate formed by the two cover plates (43) to match the diameter of the communication line, rotating the camera (13) and making the lens face vertically downward, and the UAV hovers above the communication line, so that the longitudinal axis of the rotating camera (13) is close to the longitudinal axis of the communication line, the stepping motor (21) rotates, and the traction rope (23) moves with the positioning member (4) in the vertical direction, and the guide arc plate (41) approaches and contacts the top of the communication line. As the guide arc plate (41) moves downward, the distance between the two guide arc plates (41) at the top of the communication line gradually decreases, and the guide arc plate (41) is rotated. The arc plate (41) and the communication line slide against each other. During the downward movement of the positioning member (4), the longitudinal axis of the positioning member (4) approaches the longitudinal axis of the communication line and finally overlaps. The positioning member (4) covers the top of the communication line. The communication line supports the positioning member (4). The traction rope (23) continues to be released. The traction rope (23) is in a relaxed state. The slight shaking of the drone will not affect the stability of the positioning member (4). The resistance wire (55) is heated. Under the action of heat conduction and heat radiation, the temperature of the cutting strip (51) and the thermal expansion plate (56) increases. The two ends of the thermal expansion plate (56) move outward. The thermal expansion plate (56) pushes the cutting strip (51) to move in the direction close to the communication line. In this process, the high-temperature cutting strip (51) softens the debris on the path.

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