Protection device for unmanned aerial vehicle inspection of power transmission line

Abstract

The utility model relates to the technical field of inspection unmanned aerial vehicles, in particular to a protection device for inspection of a power transmission line unmanned aerial vehicle, which comprises an unmanned aerial vehicle body, a plant shielding and cutting device for routing inspection is arranged on the start-stop supporting assembly and used for preventing plants from winding and falling on the unmanned aerial vehicle body in field power transmission line routing inspection, the plant shielding and cutting device comprises a rotating assembly, a cutting driving motor, a gear milling cutter and a supporting shaft rod, and the supporting shaft rod is connected with the start-stop supporting assembly through the rotating assembly; the cutting driving motor is located at one end of the supporting shaft rod, and the gear milling cutter fixedly sleeves the outer circumferential wall of the output end of the cutting driving motor. According to the unmanned aerial vehicle, the sheltered plant cutting device capable of being overturned and stored is arranged on the supporting legs for starting and stopping of the unmanned aerial vehicle, sheltered plants are cleaned through the gear milling cutter of the sheltered plant cutting device, the equipment loss risk caused by winding of the unmanned aerial vehicle is reduced, and the unmanned aerial vehicle is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of inspection drones, in particular to a protection device for transmission line drone inspections. Background Art

[0002] With the rapid development of social economy and the accelerating pace of urbanization, the demand for electricity in all walks of life is increasing. Therefore, a large national interconnected power grid with ultra-high voltage transmission lines as the main framework has come into being. However, due to the rapid expansion of the scale and voltage level of the power grid, the new power grid operation mode that follows has put forward higher requirements for the operation and maintenance technology of ultra-high voltage transmission lines. Ultra-high voltage transmission lines have high voltage levels, long transmission distances, higher towers than before, and more complex terrain. In order to grasp the operating status of transmission lines and eliminate power safety hazards in a timely manner, the power department needs to invest a lot of manpower and material resources to conduct regular inspections of transmission lines, and sometimes due to the influence of uncontrollable factors such as complex terrain and extreme weather, there is an embarrassing situation of being stretched in time.

[0003] The manual inspection method not only has a large workload, but also poses a huge threat to the personal safety of inspectors due to the harsh natural environment of some inspection lines. At the same time, manual inspection is inefficient, the inspection cycle is long, the inspection quality is difficult to control, and there are blind spots in the inspection, which makes it easy to miss defects.

[0004] Therefore, the technology of using drones to inspect power transmission lines has been proposed. Drone inspection technology is a technology that uses drones to inspect and monitor target objects or areas. It is equipped with advanced sensors and can transmit data back to the control center in real time. After processing, analysis and diagnosis, it provides a more convenient solution for inspection work and significantly improves work efficiency. The use of drones for transmission line inspection operations is mainly divided into three parts according to the inspection content: the line body, ancillary facilities, channels and power protection areas.

[0005] When drones are inspecting power lines in the wild, they face the problem of wild plants blocking the transmission lines. This requires drones to conduct inspections at close range. During close-range inspections, plants can easily entangle drones, causing them to crash or become unable to fly. Utility Model Content

[0006] The purpose of the utility model is to provide a protection device for unmanned aerial vehicle inspection of power transmission lines to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A protective device for power transmission line drone inspection comprises a drone body, a start-stop support assembly is connected to the bottom of the drone body, a plant cutting device for inspection used for field power transmission line inspection to prevent plants from entanglement with the drone body and causing the drone to crash is provided on the start-stop support assembly, the plant cutting device comprises a rotating assembly, a cutting drive motor, a gear milling cutter and a support shaft, the support shaft is connected to the start-stop support assembly through the rotating assembly, the support shaft is a hollow structure with two sides passing through, the cutting drive motor is located at one end of the support shaft, and the gear milling cutter is fixedly sleeved on the outer circumferential wall of the output end of the cutting drive motor.

[0009] As a preferred solution of the utility model, the start-stop support assembly includes support legs, which are symmetrically distributed on both sides of the bottom of the drone body, and a slot is provided through the middle of each support leg. Fixed shaft rods are provided on the inner walls on both sides of each slot, and a bearing is fixedly sleeved on the outer circumferential wall of each fixed shaft rod located inside the slot.

[0010] As a preferred solution of the utility model, the rotating assembly includes a sleeve, an external driving gear and an internal driven gear, the sleeve is sleeved on the outer circumferential wall of the bearing between the notches, the sleeve is rotatably connected to the bearing, the internal driven gear is located on the inner circumferential wall in the middle of the sleeve, the external driving gear is located inside the internal driven gear, and the external driving gear is meshingly connected to the internal driven gear.

[0011] As a preferred solution of the utility model, the end of the fixed shaft rod located inside the sleeve is connected to a servo, the output end of the servo is fixedly connected to the external driving gear, and the servo is connected to the control device inside the drone body through a wire.

[0012] As a preferred solution of the utility model, the gear teeth of the outer driving gear are located on the outer circumferential wall, and the gear teeth of the inner driven gear are located on the inner circumferential wall.

[0013] As a preferred solution of the utility model, the end of the support shaft away from the gear milling cutter is connected to the top outer wall of the sleeve.

[0014] As a preferred solution of the utility model, the shaft sleeve has the same cross-sectional diameter as that of the support leg.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] In response to the problems raised in the background technology, the present application sets a reversible and storable obstructing plant cutting device on the start-stop support leg of the drone, and clears the obstructing plants through the gear milling cutter of the obstructing plant cutting device, thereby ensuring the actual safety needs of the drone operating in special environments. By integrating a special cutting mechanism on the drone, the autonomy and safety of the drone are improved, so that it can more effectively inspect power lines in areas with dense vegetation. In addition, the device can reduce the need for manual vegetation cleaning, improve inspection efficiency, reduce labor intensity, and reduce the risk of equipment loss due to entanglement of the drone, thereby protecting the drone.

[0017] The emergence of this protection device is an innovative supplement to the traditional drone inspection solution. It provides an active defense mechanism to cope with specific working environment challenges, demonstrating the application potential and development direction of drone technology in the field of power system maintenance.

[0018] It can not only effectively reduce the number of drone crashes caused by entanglement, but also improve the obstacle avoidance capability of drones in complex environments, further improving the stability and safety of inspection operations. At the same time, the application of this device will also help promote the wider application and development of drone technology in the field of power inspection.

[0019] When the drone body is inspecting the power transmission line and finds that plants are blocking it, the control device inside the drone body controls the steering gear to work. The steering gear is connected to the outer driving gear, and the inner driven gear is located on the inner circumferential wall in the middle of the sleeve. The outer driving gear is located inside the inner driven gear. The outer driving gear is meshed and connected with the inner driven gear. The gear teeth of the outer driving gear are located on the outer circumferential wall, and the gear teeth of the inner driven gear are located on the inner circumferential wall. When the outer driving gear rotates, it drives the inner driven gear meshed with it to rotate, and the inner driven gear rotates with the sleeve, further driving the sleeve to rotate. The end of the supporting shaft away from the gear milling cutter is connected to the outer wall of the top of the sleeve. When the sleeve rotates, it drives the gear milling cutter to flip ninety degrees. At this time, the control device controls the cutting drive motor to work. The gear milling cutter fixed sleeve is located on the outer circumferential wall of the output end of the cutting drive motor, and the vegetation blocking the power transmission line inspection is cut by the gear milling cutter. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an overall top view of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the start-stop support assembly of the utility model;

[0022] Figure 3 This is a schematic diagram of the connection between the gear milling cutter and the supporting shaft rod of the utility model;

[0023] Figure 4 For this utility model Figure 2 Enlarged view of area A in the middle.

[0024] In the figure: 1. UAV body; 2. Start-stop support assembly; 21. Support leg; 22. Notch; 23. Fixed shaft; 24. Bearing; 3. Plant cutting shielding device; 30. Rotating assembly; 33. Cutting drive motor; 31. Gear milling cutter; 32. Support shaft; 301. Servo; 302. Bushing; 303. External driving gear; 304. Internal driven gear. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the embodiments of the present invention.

[0026] Example

[0027] See also Figure 1-4 The utility model provides a technical solution: a protection device for power transmission line UAV inspection, comprising a UAV body 1, a start-stop support assembly 2 is connected to the bottom of the UAV body 1, and a plant cutting device 3 for preventing plants from entanglement and crashing the UAV body 1 during field power transmission line inspection is arranged on the start-stop support assembly 2. The start-stop support assembly 2 comprises support legs 21, and the support legs 21 are symmetrically distributed on both sides of the bottom of the UAV body 1, and a notch 22 is provided through the middle of each support leg 21, and a fixed shaft rod 23 is provided on the inner wall of both sides of each notch 22, and a bearing 24 is fixedly sleeved on the outer circumferential wall of each fixed shaft rod 23 located inside the notch 22;

[0028] The rotating assembly 30 includes a sleeve 302, an outer driving gear 303 and an inner driven gear 304. The sleeve 302 is sleeved on the outer circumferential wall of the bearing 24 between the notches 22. The sleeve 302 is rotatably connected to the bearing 24. The inner driven gear 304 is located on the inner circumferential wall in the middle of the sleeve 302. The outer driving gear 303 is located inside the inner driven gear 304. The outer driving gear 303 is meshed and connected with the inner driven gear 304. The gear teeth of the outer driving gear 303 are located on the outer circumferential wall, and the gear teeth of the inner driven gear 304 are located on the inner circumferential wall. The sleeve 302 has the same cross-sectional diameter as the support leg 21. The end of the fixed shaft 23 located inside the sleeve 302 is connected to a steering gear 301. The output end of the steering gear 301 is fixedly connected to the outer driving gear 303. The steering gear 301 is connected to the control device inside the drone body 1 through a wire.

[0029] It should be noted that, in this embodiment, the present application sets a reversible and storable shielding plant cutting device 3 on the start-stop support leg 21 of the UAV, and clears the shielding plants by the gear milling cutter 31 of the shielding plant cutting device 3, thereby ensuring the actual safety requirements of the UAV operating in special environments. By integrating a special cutting mechanism on the UAV, the autonomy and safety of the UAV are improved, so that it can more effectively inspect power lines in areas with dense vegetation. In addition, the device can reduce the need for manual vegetation cleaning, improve inspection efficiency, reduce labor intensity, and reduce the risk of equipment loss due to entanglement of the UAV, thereby protecting the UAV.

[0030] Furthermore, the support leg 21 is arranged in a U-shaped structure, a notch 22 is provided in the middle of the lower part, and anti-skid support pads are provided at the bottom of both ends of the support leg 21 for anti-skid support;

[0031] Furthermore, the sleeve 302 is sleeved on the outer circumferential wall of the bearing 24 between the notches 22, the sleeve 302 is rotatably connected to the bearing 24, and the sleeve 302 has the same cross-sectional diameter as the support leg 21, ensuring that the bottom of the support leg 21 is in a horizontal plane, ensuring the stability of starting and stopping in contact with the ground;

[0032] Furthermore, the inner driven gear 304 is located on the inner circumferential wall in the middle of the sleeve 302, the outer driving gear 303 is located inside the inner driven gear 304, the outer driving gear 303 is meshed and connected with the inner driven gear 304, the gear teeth of the outer driving gear 303 are located on the outer circumferential wall, and the gear teeth of the inner driven gear 304 are located on the inner circumferential wall. When the outer driving gear 303 rotates, it drives the inner driven gear 304 meshed with it to rotate, and the inner driven gear 304 and the sleeve 302 rotate, further driving the sleeve 302 to rotate, so as to facilitate the subsequent rotation and storage of the gear milling cutter 31 of the plant cutting device 3.

[0033] See also Figure 3 and 4 The plant cutting device 3 includes a rotating component 30, a cutting drive motor 33, a gear milling cutter 31 and a supporting shaft 32. The supporting shaft 32 is connected to the start-stop support component 2 through the rotating component 30. The supporting shaft 32 is a hollow structure with two sides passing through. The cutting drive motor 33 is located at one end of the supporting shaft 32. The gear milling cutter 31 is fixedly sleeved on the outer circumferential wall of the output end of the cutting drive motor 33. The end of the supporting shaft 32 away from the gear milling cutter 31 is connected to the top outer wall of the sleeve 302.

[0034] It should be noted that, in this embodiment, the shielding plant cutting device 3 is an innovative supplement to the traditional drone inspection solution. It provides an active defense mechanism to cope with specific working environment challenges, demonstrating the application potential and development direction of drone technology in the field of power system maintenance;

[0035] Furthermore, one end of the support shaft 32 away from the gear cutter 31 is connected to the outer wall of the top of the sleeve 302, and the gear cutter 31 can be turned over and stored conveniently by rotating the sleeve 302. When the drone body 1 is inspecting the power transmission line and finds that plants are blocking it, the control device inside the drone body 1 controls the steering gear 301 to work. The steering gear 301 is connected to the outer driving gear 303, and the inner driven gear 304 is located on the inner circumferential wall in the middle of the sleeve 302. The outer driving gear 303 is located inside the inner driven gear 304, and the outer driving gear 303 is meshed with the inner driven gear 304. The gear teeth of the outer driving gear 303 are located on the outer circumferential wall, and the gear teeth of the inner driven gear 304 are located on the inner circumferential wall. On the peripheral wall, when the outer driving gear 303 rotates, it drives the inner driven gear 304 meshing with it to rotate, and the inner driven gear 304 rotates with the shaft sleeve 302, further driving the shaft sleeve 302 to rotate, and the end of the support shaft 32 away from the gear milling cutter 31 is connected to the outer wall of the top of the shaft sleeve 302. When the shaft sleeve 302 rotates, it drives the gear milling cutter 31 to flip ninety degrees. At this time, the control device controls the cutting drive motor 33 to work, and the gear milling cutter 31 is fixedly sleeved on the outer circumferential wall of the output end of the cutting drive motor 33. The gear milling cutter 31 is used to cut the vegetation that blocks the inspection of the power transmission line to prevent the plant from entanglement with the drone during close-range detection, causing the drone to crash or be unable to fly.

[0036] It can not only effectively reduce the number of drone crashes caused by entanglement, but also improve the obstacle avoidance capabilities of drones in complex environments, further improving the stability and safety of inspection operations. At the same time, the application of this device will also help promote the wider application and development of drone technology in the field of power inspection.

[0037] The utility model workflow:

[0038] During use, when the drone body 1 is inspecting the power transmission line and finds that plants are blocking the power transmission line inspection, the control device inside the drone body 1 controls the steering gear 301 to work. The steering gear 301 is connected to the outer driving gear 303. The inner driven gear 304 is located on the inner circumferential wall in the middle of the shaft sleeve 302. The outer driving gear 303 is located inside the inner driven gear 304. The outer driving gear 303 is meshed and connected with the inner driven gear 304. The gear teeth of the outer driving gear 303 are located on the outer circumferential wall, and the gear teeth of the inner driven gear 304 are located on the inner circumferential wall. When the outer driving gear 303 rotates, it drives the inner driven gear meshed with it. The driven gear 304 rotates, and the inner driven gear 304 and the shaft sleeve 302 rotate, further driving the shaft sleeve 302 to rotate, and the end of the support shaft 32 away from the gear milling cutter 31 is connected to the top outer wall of the shaft sleeve 302. The shaft sleeve 302 rotates and drives the gear milling cutter 31 to flip ninety degrees. At this time, the control device controls the cutting drive motor 33 to work, and the gear milling cutter 31 is fixedly mounted on the outer circumferential wall of the output end of the cutting drive motor 33. The gear milling cutter 31 is used to cut the vegetation blocking the transmission line inspection to prevent the plants from entanglement with the drone during close-range detection, causing the drone to crash or be unable to fly.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protection device for power transmission line inspection by unmanned aerial vehicle, comprising an unmanned aerial vehicle body (1), characterized in that: The bottom of the drone body (1) is connected to a start-stop support assembly (2), and the start-stop support assembly (2) is provided with a plant cutting device (3) for inspection used for field power transmission line inspection to prevent plants from entanglement with the drone body (1) and causing the drone to crash. The plant cutting device (3) comprises a rotating assembly (30), a cutting drive motor (33), a gear milling cutter (31) and a support shaft (32). The support shaft (32) is connected to the start-stop support assembly (2) through the rotating assembly (30). The support shaft (32) is a hollow structure with two sides passing through. The cutting drive motor (33) is located at one end of the support shaft (32), and the gear milling cutter (31) is fixedly sleeved on the outer circumferential wall of the output end of the cutting drive motor (33).

2. The protection device for power transmission line inspection by drone according to claim 1 is characterized in that: The start-stop support assembly (2) comprises support legs (21), the support legs (21) are symmetrically distributed on both sides of the bottom of the drone body (1), a slot (22) is provided through the middle of each support leg (21), a fixed shaft rod (23) is provided on the inner walls on both sides of each slot (22), and a bearing (24) is fixedly sleeved on the outer circumferential wall of each fixed shaft rod (23) located inside the slot (22).

3. The protection device for transmission line drone inspection according to claim 2 is characterized in that: The rotating assembly (30) comprises a shaft sleeve (302), an outer driving gear (303) and an inner driven gear (304); the shaft sleeve (302) is sleeved on the outer circumferential wall of the bearing (24) between the notches (22); the shaft sleeve (302) is rotatably connected to the bearing (24); the inner driven gear (304) is located on the inner circumferential wall in the middle of the shaft sleeve (302); the outer driving gear (303) is located inside the inner driven gear (304); and the outer driving gear (303) is meshedly connected to the inner driven gear (304).

4. The protection device for transmission line drone inspection according to claim 3 is characterized by: The end of the fixed shaft (23) located inside the shaft sleeve (302) is connected to a steering gear (301), an output end of the steering gear (301) is fixedly connected to the external driving gear (303), and the steering gear (301) is connected to a control device inside the drone body (1) via a wire.

5. The protection device for transmission line drone inspection according to claim 3 is characterized by: The gear teeth of the outer driving gear (303) are located on the outer circumferential wall, and the gear teeth of the inner driven gear (304) are located on the inner circumferential wall.

6. The protection device for transmission line drone inspection according to claim 4 is characterized by: One end of the support shaft (32) away from the gear milling cutter (31) is connected to the top outer wall of the sleeve (302).

7. The protection device for transmission line drone inspection according to claim 6 is characterized by: The shaft sleeve (302) and the support leg (21) have the same cross-sectional diameter.

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