A drone for power distribution network line inspection

Abstract

The invention discloses an unmanned aerial vehicle for inspecting power distribution network lines, relates to the technical field of unmanned aerial vehicles, and comprises an unmanned aerial vehicle, wherein a hanger and a camera are respectively installed at the lower end of the unmanned aerial vehicle, a telescopic rod and a winding motor are respectively installed at the bottom of the hanger, two groups of telescopic rods are symmetrically arranged, and positioning clamps are installed at the output ends of the two telescopic rods, and an inspection mechanism is clamped between the two groups of positioning clamps, and the inspection mechanism comprises a U-shaped inspection cover, which is connected to the winding motor through an elastic rope, an inspection sleeve is installed in the middle of the U-shaped inspection cover, and clamping sleeves are respectively installed at both ends of the U-shaped inspection cover; through the design of the inspection mechanism and the positioning clamps for clamping the inspection mechanism, the separation and combination of the inspection mechanism and the line are made more flexible, convenient, stable, safe, accurate and efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to an unmanned aerial vehicle (UAV) for inspecting power distribution network lines. Background Art

[0002] With the huge demand for electricity, the entire power system has been under tremendous pressure. It is necessary to inspect the lines in the overall distribution network system in a timely manner to avoid problems such as line aging and cracking, and to ensure the normal operation of the lines. At present, the inspection of distribution network lines is generally still carried out by manual inspection, which is not only very dangerous, but also has a relatively low inspection efficiency. Some devices that use drone inspections generally take photos and observe at a certain distance from the line, resulting in inaccurate line inspections.

[0003] Therefore, it is necessary to provide a drone for power distribution network line inspection to solve the problems raised in the above background technology. Summary of the invention

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a drone for inspecting distribution network lines, comprising a drone, a hanger and a camera are respectively installed at the lower end of the drone, a telescopic rod and a winding motor are respectively installed at the bottom of the hanger, the telescopic rods are symmetrically arranged in two groups, the output ends of the two telescopic rods are both installed with positioning clamps, an inspection mechanism is clamped between the two groups of positioning clamps, the inspection mechanism includes a U-shaped inspection cover, the U-shaped inspection cover is connected to the winding motor through an elastic rope, an inspection sleeve is installed in the middle of the U-shaped inspection cover, and clamping sleeves are respectively installed at both ends of the U-shaped inspection cover.

[0005] As a preferred technical solution of the present invention, the positioning clamp includes a clamping plate, the upper end of the clamping plate is connected to the telescopic rod, and the lower end of the clamping plate is respectively equipped with a semicircular sliding rod and a sliding cylinder sleeved on the outside of the partial semicircular sliding rod, the outer wall of the semicircular sliding rod is sleeved with a sliding sleeve, and the two ends of the sliding sleeve are respectively connected to the clamping plate through a spring, one end of the sliding sleeve located in the sliding cylinder is sleeved with a sealing plug, and the sealing plug and the sliding cylinder form a sealing cavity, the sealing cavity is connected to an air valve installed on the clamping plate, and one end of the sliding sleeve located outside the sliding cylinder is installed with a clamping block.

[0006] As a preferred technical solution of the present invention, a tension sensor is installed at one end of the elastic rope close to the U-shaped inspection cover.

[0007] As a preferred technical solution of the present invention, counterweight bars are respectively installed at the circumferential ends of the U-shaped inspection cover.

[0008] As a preferred technical solution of the present invention, the clamping sleeve includes a semicircular clamp and a U-shaped cover fixed on the U-shaped inspection cover, the two diagonal ends inside the U-shaped cover are installed with support blocks, a J-shaped slide bar is installed on the support block, the semicircular clamp is configured in multiple groups, which are respectively slidably sleeved on the J-shaped slide bar and fixed on the support block, the inner wall of the semicircular clamp is installed with a plurality of evenly distributed ball bearings, and the U-shaped cover is also installed with a driving wheel for driving the semicircular clamp sliding sleeve on the J-shaped slide bar to rotate.

[0009] As a preferred technical solution of the present invention, one end of the semicircular clip that is slidably sleeved on the J-shaped slide rod is connected to the support block via spring 2.

[0010] As a preferred technical solution of the present invention, guide rollers are rotatably mounted on the circumferential ends of the U-shaped inspection cover.

[0011] As a preferred technical solution of the present invention, the inspection sleeve includes an inspection cover fixed on a U-shaped inspection cover, and an inspection probe is installed inside the inspection cover.

[0012] As a preferred technical solution of the present invention, a fill light is also installed inside the inspection cover.

[0013] Compared with the prior art, the present invention provides a drone for power distribution network line inspection, which has the following beneficial effects:

[0014] In the present invention, the UAV and the inspection mechanism are connected by an elastic rope, and the tension of the elastic rope is transmitted to the UAV for feedback to adjust its posture in time. At the same time, through the design of the inspection mechanism and the positioning clamp for clamping the inspection mechanism, the separation and combination of the inspection mechanism and the line are made more flexible, convenient, stable, safe, accurate and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a drone for power distribution network line inspection according to the present invention;

[0016] Figure 2 It is a schematic diagram of the structure of the positioning clip in the present invention;

[0017] Figure 3 It is a structural schematic diagram of the clamping block in the present invention;

[0018] Figure 4 It is a structural schematic diagram of the inspection mechanism in the present invention;

[0019] Figure 5 It is a schematic diagram of the structure of the jacket and the inspection sleeve in the present invention;

[0020] Figure 6 It is a schematic diagram of the structure of the jacket in the present invention;

[0021] Figure 7 It is a structural schematic diagram of the inspection sleeve in the present invention;

[0022] In the figure: 1. UAV; 2. Hanger; 3. Camera; 4. Telescopic rod; 5. Positioning clamp; 6. Inspection mechanism; 7. Winding motor; 8. Elastic rope; 9. Tension sensor; 51. Clamp; 52. Semicircular slide bar; 53. Slide cylinder; 54. Slide sleeve; 55. Sealing plug; 56. Clamp block; 57. Spring 1; 58. Air valve; 61. U-shaped inspection cover; 62. Clamp sleeve; 63. Inspection cover; 64. Counterweight bar; 621. U-shaped cover; 622. Support block; 623. J-shaped slide bar; 624. Semicircular clamp; 625. Ball; 626. Spring 2; 627. Driving wheel; 628. Guide roller; 631. Inspection cover; 632. Inspection probe; 633. Fill light. DETAILED DESCRIPTION

[0023] Reference Figure 1-Figure 7 The present invention provides a technical solution: a drone for inspecting distribution network lines, comprising a drone 1, wherein a hanger 2 and a camera 3 are respectively installed at the lower end of the drone 1, and a telescopic rod 4 and a winding motor 7 are respectively installed at the bottom of the hanger 2, wherein the telescopic rod 4 is symmetrically arranged in two groups, and a positioning clamp 5 is installed at the output end of the two telescopic rods 4, and an inspection mechanism 6 is clamped between the two groups of positioning clamps 5, and the inspection mechanism 6 comprises a U-shaped inspection cover 61, and the U-shaped inspection cover 61 is connected to the winding motor 7 through an elastic rope 8, and an inspection sleeve 63 is installed in the middle of the U-shaped inspection cover 61, and jackets 62 are respectively installed at both ends of the U-shaped inspection cover 61.

[0024] In this embodiment, the positioning clamp 5 includes a clamping plate 51, the upper end of the clamping plate 51 is connected to the telescopic rod 4, and the lower end of the clamping plate 51 is respectively installed with a semicircular sliding rod 52 and a sliding cylinder 53 sleeved on the outside of the partial semicircular sliding rod 52, and the outer wall of the semicircular sliding rod 52 is sleeved with a sliding sleeve 54, and the two ends of the sliding sleeve 54 are respectively connected to the clamping plate 51 through a spring 57, and one end of the sliding sleeve 54 located in the sliding cylinder 53 is sleeved with a sealing plug 55, and the sealing plug 55 and the sliding cylinder 53 form a sealed cavity, and the sealed cavity is connected to a gas valve 58 installed on the clamping plate 51, and one end of the sliding sleeve 54 located outside the sliding cylinder 53 is installed with a clamping block 56; the positioning clamp 5 clamps the inspection mechanism 6 to be sleeved on or off the outside of the power distribution network line;

[0025] In specific implementation, the implementation process of the positioning clamp 5 clamping the inspection mechanism 6 to separate from the line is: open the air valve 58, at this time the sealed chamber is connected to the external atmosphere, the slide cylinder 53 cooperates with the spring 57, so that the slide cylinder 53 has a slidable characteristic, the telescopic rod 4 controls the clamping plate 51 to lean against the U-shaped inspection cover 61 and clamp it, the drone controls to drive the U-shaped inspection cover 61 to separate from the line, when the U-shaped inspection cover 61 separates from the line, the air valve 58 is closed, the sealing plug 55 and the slide cylinder 53 form a sealed chamber, and the sliding sleeve 53 is fixed by the action of the sealed chamber and the external air pressure; that is to say, in the process of the U-shaped inspection cover 61 separating from the line, the U-shaped inspection cover 61 has a fluctuation amplitude that can rotate circumferentially, which is conducive to the drone driving the U-shaped inspection cover 61 to separate from the line, and is conducive to ensuring that each time the U-shaped inspection cover 61 separates from the line, the U-shaped mouth of the U-shaped inspection cover 61 faces downward so that it can be put on the line again later.

[0026] In this embodiment, a tension sensor 9 is installed at one end of the elastic rope 8 close to the U-shaped inspection cover 61 to monitor the tension of the elastic rope 8 in real time and provide feedback to the drone so that the drone can adjust its own flight speed and position in time to ensure that the monitored tension value is within a certain range, making the inspection of the inspection agency along the line smoother, more stable and safer.

[0027] In this embodiment, the circumferential ends of the U-shaped inspection cover 61 are respectively installed with counterweight bars 64, which is beneficial to improving the stability of the U-shaped inspection cover 61 moving along the line.

[0028] In this embodiment, the clamping sleeve 62 includes a semicircular clamp 624 and a U-shaped cover 621 fixed on the U-shaped inspection cover 61, and the two diagonal ends inside the U-shaped cover 621 are both installed with a support block 622, and a J-shaped slide bar 623 is installed on the support block 622. The semicircular clamp 624 is configured in multiple groups, which are respectively slidably sleeved on the J-shaped slide bar 623 and fixed on the support block 622. The inner wall of the semicircular clamp 624 is installed with a plurality of evenly distributed balls 625, and the U-shaped cover 621 is also installed with a driving wheel 627 for driving the semicircular clamp 624 sliding sleeved on the J-shaped slide bar 623 to rotate;

[0029] In this embodiment, the semicircular clamps 624 are arranged in four groups, and the semicircular clamps 624 mounted on the support block 622 are in a fixed state. In the specific implementation method, when the U-shaped inspection cover 61 is sleeved on the outside of the line, one sliding semicircular clamp 624 is driven to rotate counterclockwise by 90° to 150° through a driving wheel 627 for controlling its rotation, and another sliding semicircular clamp 624 is driven to rotate clockwise by 90° to 150° through a driving wheel 627 for controlling its rotation, thereby completely including the line. If the U-shaped inspection cover 61 needs to be detached from the line, the above steps are performed in reverse.

[0030] In this embodiment, one end of the semicircular clip 624 slidably sleeved on the J-shaped sliding rod 623 is connected to the support block 622 via a second spring 626 .

[0031] In this embodiment, guide rollers 628 are rotatably mounted on the circumferential ends of the U-shaped inspection cover 61 .

[0032] In this embodiment, the inspection cover 63 includes an inspection cover 631 fixed on the U-shaped inspection cover 61 , and an inspection probe 632 is installed inside the inspection cover 631 .

[0033] In this embodiment, a fill light 633 is further installed inside the inspection cover 631 .

[0034] In specific implementation, it includes the following steps:

[0035] S1: Preliminary positioning of the distribution network line is performed through camera 3, and the initial point of line inspection is selected;

[0036] S2: After the U-shaped inspection cover 61 is put on the outside of the line by controlling the drone, the driving wheel 627 adjusts the semicircular clamp 624 to wrap the line, and the telescopic rod 4 adjusts the positioning clamp 5 to separate from the U-shaped inspection cover 61;

[0037] S3: The winding motor 7 unwinds the elastic rope 8, and at the same time, the UAV is away from the line by a certain distance, thereby improving the safety and stability of the UAV flight;

[0038] S4: Monitor the change and fluctuation of the tension value through the tension sensor 9, and provide real-time feedback to the UAV to adjust the flight attitude in time and conduct line inspection.

[0039] The above description is only a preferred specific implementation manner of the invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the invention, which should be covered by the protection scope of the present invention.

Claims

1. A drone for inspecting power distribution lines, comprising a drone (1), wherein a hanger (2) and a camera (3) are respectively mounted at the lower end of the drone (1), wherein: A telescopic rod (4) and a winding motor (7) are respectively installed at the bottom of the hanger (2); the telescopic rod (4) is symmetrically arranged in two groups; the output ends of the two telescopic rods (4) are both installed with positioning clamps (5); a patrol mechanism (6) is clamped between the two groups of positioning clamps (5); the patrol mechanism (6) comprises a U-shaped patrol cover (61); the U-shaped patrol cover (61) is connected to the winding motor (7) through an elastic rope (8); a patrol sleeve (63) is installed in the middle of the U-shaped patrol cover (61); and clamp sleeves (62) are respectively installed at both ends of the U-shaped patrol cover (61); The positioning clamp (5) comprises a clamping plate (51), the upper end of which is connected to the telescopic rod (4), the lower end of which is respectively provided with a semicircular sliding rod (52) and a sliding cylinder (53) sleeved on the outside of the semicircular sliding rod (52), the outer wall of the semicircular sliding rod (52) is sleeved with a sliding sleeve (54), the two ends of the sliding sleeve (54) are respectively connected to the clamping plate (51) through a spring (57), one end of the sliding sleeve (54) located in the sliding cylinder (53) is sleeved with a sealing plug (55), the sealing plug (55) and the sliding cylinder (53) form a sealing cavity, the sealing cavity is connected to an air valve (58) mounted on the clamping plate (51), and one end of the sliding sleeve (54) located outside the sliding cylinder (53) is installed with a clamping block (56); The clamping sleeve (62) comprises a semicircular clamp (624) and a U-shaped cover (621) fixed on the U-shaped inspection cover (61); two diagonal ends inside the U-shaped cover (621) are both installed with support blocks (622); a J-shaped sliding rod (623) is installed on the support block (622); the semicircular clamp (624) is configured in multiple groups, which are respectively slidably sleeved on the J-shaped sliding rod (623) and fixed on the support block (622); a plurality of evenly distributed balls (625) are installed on the inner wall of the semicircular clamp (624); and a driving wheel (627) for driving the semicircular clamp (624) slidably sleeved on the J-shaped sliding rod (623) to rotate is also installed on the U-shaped cover (621); One end of the semicircular clamp (624) slidably sleeved on the J-shaped slide bar (623) is connected to the support block (622) via a second spring (626), wherein one of the sliding semicircular clamps (624) is driven to rotate counterclockwise by an angle of 90° to 150° via a driving wheel (627) for controlling its rotation, and the other sliding semicircular clamp (624) is driven to rotate clockwise by an angle of 90° to 150° via a driving wheel (627) for controlling its rotation.

2. The UAV for power distribution network line inspection according to claim 1, characterized in that: A tension sensor (9) is installed at one end of the elastic rope (8) close to the U-shaped inspection cover (61).

3. The UAV for power distribution network line inspection according to claim 1, characterized in that: Counterweight bars (64) are respectively installed at the circumferential ends of the U-shaped inspection cover (61).

4. The UAV for power distribution network line inspection according to claim 1, characterized in that: Guide rollers (628) are rotatably mounted on the circumferential ends of the U-shaped inspection cover (61).

5. The UAV for power distribution network line inspection according to claim 1, characterized in that: The inspection cover (63) comprises an inspection cover (631) fixed on the U-shaped inspection cover (61), and an inspection probe (632) is installed inside the inspection cover (631).

6. The UAV for power distribution network line inspection according to claim 5, characterized in that: A fill light (633) is also installed inside the inspection cover (631).

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