An unattended unmanned aerial vehicle hangar for high-voltage tower inspection

By designing an unmanned drone hangar for high-voltage power tower inspection, and adopting a rectangular box structure and automated components, the drones' take-off, landing, and charging have been automated. This solves the problems of existing technologies requiring professional pilots and having limited coverage, thereby improving inspection efficiency and safety.

CN224529057UActive Publication Date: 2026-07-21EAST CHINA JIAOTONG UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
EAST CHINA JIAOTONG UNIVERSITY
Filing Date
2025-06-24
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing drone fleet for inspecting high-voltage transmission lines requires professional pilots, has limited coverage, and cannot achieve unmanned operation. Furthermore, traditional inspection methods are inefficient and risky, failing to meet the requirements of intelligent inspection.

Method used

An unmanned drone hangar for high-voltage power tower inspection was designed. It adopts a rectangular box structure and is fixed by a landing pad driven by a linear motor and an electromagnet. Combined with the installation components and door drive components, it realizes automatic take-off, landing and charging of drones. Installed on the high-voltage power tower, it improves inspection efficiency and safety.

Benefits of technology

It enables automated take-off, landing, and charging of drones, reduces human intervention, improves inspection efficiency and safety, expands coverage, and is suitable for unattended inspection of high-voltage power towers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of unmanned plane hangar, concretely is a kind of unmanned tower inspection with unattended unmanned hangar, including rectangular box, semicircular groove, end department body, top department body, door body drive assembly, linear motor, parking apron, electromagnet, iron block, right-angle mounting plate, right-angle welding plate, iron tower truss, bottom auxiliary support plate, motor, worm, worm wheel mounting column and worm wheel;The utility model is installed on iron tower, greatly reduces the distance of unmanned plane take-off and landing, simultaneously avoids the risk of take-off and landing touching obstacle;Adopt the mode of two sides open door, the opening and closing of end department body are driven by door body drive assembly, electromagnet drives parking apron to move to the both ends of rectangular box, semicircular groove in the top of rectangular box can be used for unmanned plane take-off and landing, when departure and return, it can enter and exit from front and rear two doors, improves the efficiency of take-off and return.
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Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) hangar technology, specifically an unmanned UAV hangar for high-voltage power tower inspection. Background Technology

[0002] The power grid is a vital public infrastructure for national economic and social development. The safe operation of high-voltage transmission lines is crucial for the stable supply and use of electricity. During the operation of transmission lines, due to the complex and variable open-air environment, various abnormalities may occur, such as loosening, breakage, or detachment of components like suspension clamps, tension clamps, and vibration dampers. These abnormalities not only affect the stable operation of transmission lines but can also lead to major safety accidents in severe cases. These components fall into the category of small targets, occupying a small area in images, with low resolution, high positioning requirements, and scarce edge information, resulting in significant false positives and false negatives. Therefore, real-time and accurate identification of small targets on transmission lines is of great importance. Traditional detection methods mainly rely on manual inspection and simple auxiliary tools, which are inefficient and risky, failing to meet the requirements of intelligent detection. In recent years, with the popularization of drone technology in intelligent inspection, the inspection efficiency has been greatly improved. However, existing inspection drones require professional pilots, operation supervisors and other relevant personnel to operate the drones on-site. Generally, ground-based hangars are only suitable for fixed locations such as substations and power plants, with limited coverage and unable to inspect high-voltage tower lines. Therefore, a drone hangar suitable for high-voltage tower inspection is needed. Summary of the Invention

[0003] The purpose of this utility model is to provide an unmanned drone hangar for high-voltage power tower inspection, so as to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an unmanned drone hangar for high-voltage power tower inspection, comprising a rectangular box, with semi-circular grooves at both ends of the top plate of the rectangular box, and end doors mounted on both ends of the rectangular box via hinges. A top door adapted to the semi-circular groove is fixedly connected to one side of the top of the end door, and a sealing plate is provided on the groove wall of the semi-circular groove. A linear motor is fixedly installed inside the rectangular box, and a landing pad is installed on the sliding end of the linear motor. When the linear motor slides to both ends, the landing pad... The center of the apron top surface is coaxial with the center of the semi-circular groove. The top of the rectangular box is equipped with a door drive assembly for opening and closing the end door. The door drive assembly includes a motor, a worm gear, a worm wheel mounting post, and a worm wheel. The worm wheel mounting post is vertically fixedly connected to one end of the top of the top door. The worm wheel is fixedly sleeved on the worm wheel mounting post. The motor is fixedly installed on the top of the rectangular box. The output end of the motor is fixedly connected to the worm gear. The worm gear and the worm wheel mesh. A protective shell is installed on the top of the rectangular box, and the door drive assembly is located inside the protective shell.

[0005] Preferably, the top door has a slot adapted to the sealing plate, and waterproof sealing strips are installed in the slot and at the top and bottom of the sealing plate.

[0006] Preferably, the system also includes an installation assembly comprising a right-angle mounting plate and a right-angle welded plate. The right-angle welded plate is horizontally welded to the tower truss and horizontally fixed to the outer wall of one side panel of the rectangular box. The right-angle mounting plate and the right-angle welded plate have multiple through holes and are connected by bolts. The system also includes a bottom auxiliary support plate, which is welded from a horizontal right-angle plate and an inclined right-angle plate. One end of the horizontal right-angle plate is welded to the right-angle welded plate, and one end of the inclined right-angle plate is welded to the tower truss.

[0007] Preferably, electromagnets are embedded in both ends of one side of the rectangular box, and iron blocks are embedded in one side of the end doors at both ends of the rectangular box. After the end doors are closed, the electromagnets and iron blocks are magnetically attracted and fixed.

[0008] Preferably, the rectangular box is equipped with a fixing component and a charging component for fixing the drone. The fixing component consists of a slide, a push rod, and a pressure block, etc., and the charging component mainly consists of a slide, a push rod, and a charging plug, etc. The fixing component and the charging component are existing technologies.

[0009] Preferably, the rectangular box is installed at the "K"-shaped node position of the side steel truss at two-thirds of the height of the high-voltage power tower from bottom to top.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention uses an installation assembly, employing right-angle mounting plates and right-angle welded plates connected by bolts, to fix a rectangular box onto the truss of a high-voltage power tower. This method is convenient and highly stable, effectively resisting strong winds and other severe weather conditions, ensuring the stable operation of the drone hangar without altering the tower's center of gravity. The hangar's installation on the tower significantly reduces the takeoff and landing distances for drones, while also avoiding the risk of collisions with obstacles. The design features side-opening doors, with a door drive assembly that opens and closes the end doors. Electromagnets move the landing pad to both ends of the rectangular box. A semi-circular groove on the top of the rectangular box allows for drone takeoff and landing. Drones can enter and exit through both the front and rear doors, improving takeoff and return efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the door after it is opened; Figure 2 This is a side view of the door of this utility model after it is opened; Figure 3 This is a schematic diagram of the structure of this utility model when installed on a steel tower truss; Figure 4 This is a schematic diagram of the structure of this utility model when it is installed on the iron tower truss, viewed from below. Figure 5 This is a schematic diagram of the door drive assembly structure of this utility model.

[0012] In the diagram: 1. Rectangular box; 101. Semicircular groove; 2. End door; 3. Top door; 4. Door drive assembly; 5. Linear motor; 6. Helipad; 7. Electromagnet; 8. Iron block; 9. Right-angle mounting plate; 10. Right-angle welded plate; 11. Iron tower truss; 12. Bottom auxiliary support plate; 41. Motor; 42. Worm gear; 43. Worm gear mounting column; 44. Worm gear. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figures 1 to 5This utility model provides a technical solution: an unmanned drone hangar for high-voltage power tower inspection, including a rectangular box 1. Semicircular grooves 101 are provided at both ends of the top plate of the rectangular box 1. End doors 2 are installed at both ends of the rectangular box 1 via hinges. A top door 3, adapted to the semicircular grooves 101, is fixedly connected to one side of the top of the end door 2. A sealing plate is provided on the groove wall of the semicircular grooves 101. A slot adapted to the sealing plate is provided on the top door 3. Waterproof sealing strips are installed in the slots and on the top and bottom of the sealing plate. The waterproof sealing strips effectively prevent rainwater from entering the rectangular box 1, protecting the drone and equipment.

[0015] A linear motor 5 is fixedly installed inside the rectangular housing 1. A landing pad 6 is installed at the sliding end of the linear motor 5. When the linear motor 5 slides to both ends, the center of the top surface of the landing pad 6 is coaxial with the center of the semicircular groove 101. A door drive assembly 4 for opening and closing the end door body 2 is provided on the top of the rectangular housing 1. The door drive assembly 4 includes a motor 41, a worm gear 42, a worm gear mounting post 43, and a worm gear 44. The worm gear mounting post 43 is vertically fixedly connected to one end of the top of the top door body 3, and the worm gear 44 is fixedly sleeved on the worm gear mounting post 44. 3. The motor 41 is fixedly installed on the top of the rectangular box 1. The output end of the motor 41 is fixedly connected to the worm gear 42. The worm gear 42 and the worm wheel 44 mesh. A protective shell is installed on the top of the rectangular box 1. The door drive assembly 4 is located inside the protective shell. The motor 41 drives the worm gear 42 to rotate, and the worm gear 42 drives the worm wheel 44 to rotate, thereby realizing the opening and closing of the top door 3, and then driving the opening and closing of the end door 2. The structure is simple and easy to operate. The protective shell can protect the door drive assembly 4 and extend its service life.

[0016] Furthermore, it also includes an installation assembly, which includes a right-angle mounting plate 9 and a right-angle welded plate 10. The right-angle welded plate 10 is horizontally welded to the tower truss 11, and the right-angle mounting plate 9 is horizontally fixed to the outer wall of one side panel of the rectangular box 1. The right-angle mounting plate 9 and the right-angle welded plate 10 have multiple through holes and are connected by bolts. It also includes a bottom auxiliary support plate 12, which is welded from a horizontal right-angle plate and an inclined right-angle plate. One end of the horizontal right-angle plate is welded to the right-angle welded plate 10, and one end of the inclined right-angle plate is welded to the tower truss 11. Through the cooperation of the right-angle mounting plate 9, the right-angle welded plate 10, and the bottom auxiliary support plate 12, the rectangular box 1 is stably installed on the tower truss 11 of the high-voltage power tower, which is convenient to install and has high stability.

[0017] Furthermore, electromagnets 7 are embedded in both ends of one side of the rectangular box 1, and iron blocks 8 are embedded in one side of the end doors 2 at both ends of the rectangular box 1. After the end doors 2 are closed, the electromagnets 7 and iron blocks 8 are magnetically attracted and fixed, ensuring that the end doors 2 are tightly closed, and preventing safety hazards caused by the loosening of the end doors 2 during the take-off and landing of the drone.

[0018] Furthermore, the rectangular housing 1 is equipped with a fixing component and a charging component for fixing the drone. The fixing component consists of a slide, a push rod, and a pressure block, etc., while the charging component mainly consists of a slide, a push rod, and a charging plug, etc. The fixing component and the charging component are existing technologies and will not be described in detail in this utility model. The fixing component can securely fix the drone on the landing pad 6, and the charging component can provide timely charging services for the drone to ensure the normal operation of the drone.

[0019] Furthermore, the rectangular box 1 is installed at the K-type node of the side steel truss at two-thirds of the height of the high-voltage power tower from bottom to top. The choice of this position not only ensures the stability of the drone hangar, but also facilitates the drone to inspect the high-voltage power tower, thereby improving inspection efficiency and safety.

[0020] The working process of this utility model is as follows: like Figure 1 - Figure 4 As shown, in use, the rectangular box 1 is installed on the side steel truss K-shaped node of the high-voltage power tower at two-thirds of its height from bottom to top using the mounting components. When the UAV needs to take off for inspection, the motor 41 drives the worm gear 42 to rotate, which in turn drives the worm wheel 44 to rotate, thereby opening the top door 3 and the end door 2. The linear motor 5 drives the landing pad 6 to move to one end of the rectangular box 1, and the UAV takes off from the semi-circular groove 101 for inspection. After the inspection is completed, the UAV returns and lands on the landing pad 6. The linear motor 5 drives the landing pad 6 to move into the rectangular box 1, and the motor 41 drives in the reverse direction to close the top door 3 and the end door 2. After the end door 2 is closed, the electromagnet 7 and the iron block 8 are magnetically attracted and fixed. The fixing components fix the UAV on the landing pad 6, and the charging components charge the UAV to prepare for the next inspection. The fixing components, the charging components, and the control technologies such as the UAV's takeoff and automatic return are all existing technologies and will not be described in detail.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An unmanned drone hangar for high-voltage power tower inspection, comprising a rectangular box (1), characterized in that: The top plate of the rectangular box (1) has semi-circular grooves (101) at both ends. Both ends of the rectangular box (1) are fitted with end doors (2) via hinges. A top door (3) that matches the semi-circular grooves (101) is fixedly connected to one side of the top of the end doors (2). A linear motor (5) is fixedly installed inside the rectangular box (1). A landing pad (6) is installed on the sliding end of the linear motor (5). A door drive assembly for opening and closing the end doors (2) is provided on the top of the rectangular box (1). The door drive assembly (4) includes a motor (41), a worm (42), a worm gear mounting post (43), and a worm gear (44). The worm gear mounting post (43) is vertically fixedly connected to one end of the top of the top door (3). The worm gear (44) is fixedly sleeved on the worm gear mounting post (43). The motor (41) is fixedly installed on the top of the rectangular box (1). The output end of the motor (41) is fixedly connected to the worm (42). The worm (42) and the worm gear (44) mesh.

2. The unmanned drone hangar for high-voltage power tower inspection according to claim 1, characterized in that: The wall of the semi-circular groove (101) is provided with a sealing plate, and the top door (3) is provided with a slot that matches the sealing plate. Waterproof sealing strips are installed in the slot and at the top and bottom of the sealing plate.

3. The unmanned drone hangar for high-voltage power tower inspection according to claim 1, characterized in that: It also includes an installation assembly, which includes a right-angle mounting plate (9) and a right-angle welded plate (10). The right-angle welded plate (10) is horizontally welded to the tower truss (11). The right-angle mounting plate (9) is horizontally fixed to the outer wall of one side panel of the rectangular box (1). The right-angle mounting plate (9) and the right-angle welded plate (10) are provided with multiple through holes. The right-angle mounting plate (9) and the right-angle welded plate (10) are connected by bolts. It also includes a bottom auxiliary support plate (12), which is welded from a horizontal right-angle plate and an inclined right-angle plate. One end of the horizontal right-angle plate is welded to the right-angle welded plate (10), and one end of the inclined right-angle plate is welded to the tower truss (11).

4. The unmanned drone hangar for high-voltage power tower inspection according to claim 1, characterized in that: Electromagnets (7) are embedded in both ends of one side of the rectangular box (1), and iron blocks (8) are embedded in one side of the end doors (2) at both ends of the rectangular box (1). After the end doors (2) are closed, the electromagnets (7) and iron blocks (8) are magnetically attracted and fixed.

5. The unmanned drone hangar for high-voltage power tower inspection according to claim 1, characterized in that: When the linear motor (5) slides to both ends, the center of the top surface of the parking apron (6) is coaxial with the center of the semi-circular groove (101).

6. The unmanned drone hangar for high-voltage power tower inspection according to claim 1, characterized in that: The rectangular box (1) is fitted with a protective shell on top, and the door drive assembly (4) is located inside the protective shell.