Unmanned aerial vehicle for bridge detection based on bridge safety performance

By designing safety ropes, conductive tracks, and landing platforms, the problems of battery performance degradation and blade overload in bridge inspection drones under extreme weather conditions were solved, enabling stable flight and safe landing of the drones and ensuring the continuity and safety of bridge inspection.

CN224491514UActive Publication Date: 2026-07-14JIANGXI TOHUI SCI & TECH SHARES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI TOHUI SCI & TECH SHARES CO LTD
Filing Date
2025-06-13
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing bridge inspection drones suffer from problems such as battery performance degradation, electronic component failure, and blade overload leading to falls under extreme weather conditions, causing economic losses and safety hazards.

Method used

The drone is connected to the functional mechanism via a safety rope. The counterweight increases the stability of the rope, the conductive rail powers the electric slide, the landing platform enables wireless charging, the rectangular fan blades provide stable flight power, and the rectangular landing platform ensures accurate landing.

Benefits of technology

It extends the drone's endurance, improves flight stability and landing safety, and reduces economic losses and safety risks caused by drone damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a bridge detection unmanned plane based on bridge safety performance relates to bridge detection unmanned plane field, the utility model discloses an unmanned plane, the unmanned plane is connected with function mechanism through safety rope, the function mechanism includes fixed plate, the utility model discloses through setting up the rope ring, wireless charging receiving end, fan blade, safety rope, rope body, wireless charging transmitting end, and in the process of using bridge detection unmanned plane based on bridge safety performance, the GPS sensor in electric sliding seat can acquire unmanned plane position in real time, makes landing platform always be in suitable position, and the receiving end of wireless charging transmitting end on landing platform and the bottom of unmanned plane cooperate, and unmanned plane can be automatically charged when landing, and the endurance is effectively prolonged through multiple charging, and the continuous and complete detection is guaranteed, in addition, safety rope can quickly hold it, prevents falling to the below bridge, reduces economic loss.
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Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicles (UAVs) for bridge inspection, specifically a UAV for bridge inspection based on bridge safety performance. Background Technology

[0002] The bridge inspection drone based on bridge safety performance is an advanced monitoring device that integrates drone technology, phase information technology, and image processing technology. The device aims to achieve real-time, high-precision monitoring of bridge crack width, providing important data support for bridge structure health monitoring and safety assessment. The general-purpose drone is equipped with a high-precision camera and phase information acquisition equipment.

[0003] Current bridge inspection drones based on bridge safety performance require extended periods of continuous operation due to the length of the bridges. However, in extremely cold weather, low temperatures cause a sharp decline in drone battery performance and a significant reduction in flight time. In excessively hot weather, the internal electronic components of the drone are prone to malfunction due to high temperatures. Furthermore, the fan blades may become overloaded due to increased air resistance and motor load during prolonged high-speed operation, potentially leading to drone crashes and economic losses. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a bridge inspection drone based on bridge safety performance, so as to solve the technical problem that existing bridge inspection drones fall due to battery performance degradation, electronic component failure, and fan blade overload caused by excessively cold or hot weather during long-term inspection, resulting in economic losses and safety hazards.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bridge inspection drone based on bridge safety performance, comprising a drone, the drone being connected to a functional mechanism via a safety rope, the functional mechanism including a fixed plate, the fixed plate being fixedly connected to one side of an external bridge, a base being provided on one side of the fixed plate, an electric slide being slidably connected to the top of the base via a conductive rail, a landing platform being provided on the top of the electric slide, a wireless charging transmitter being provided on the top of the landing platform, and a GPS sensor being provided inside the electric slide;

[0006] The drone includes a body, and a rope loop is fixedly connected to the bottom of the body via a mounting head. A wireless charging receiver is provided on one side of the mounting head.

[0007] The electric slide has a movable groove on one side, and a sliding rod is installed in the movable groove. A safety rope is installed on the sliding rod and the rope loop.

[0008] By adopting the above technical solution, the drone is connected to the functional mechanism by a safety rope. This connection method can provide effective protection in the event of an accident and prevent the drone from falling and causing loss.

[0009] Furthermore, the safety rope includes a rope body on which multiple counterweights are provided.

[0010] By adopting the above technical solution, the presence of the counterweight allows the safety rope to better distribute the force when it is under tension, reducing the risk of the safety rope breaking.

[0011] Furthermore, a hook is provided at the other end of the rope, and the hook is connected to the sliding rod.

[0012] By adopting the above technical solution, the hook and slide bar connection method can provide a more stable connection, ensuring that the safety rope will not easily fall off during the flight of the drone.

[0013] Furthermore, the conductive rail is used to power the electric slide, and the entire functional mechanism is made of stainless steel.

[0014] By adopting the above technical solution, the conductive track is used to power the electric slide, ensuring its normal operation. A stable power supply allows the electric slide to slide accurately on the track based on GPS sensor signals, ensuring the landing platform always follows the drone's movement and providing reliable support for the drone's takeoff, landing, and charging.

[0015] Furthermore, the top of the machine body is provided with four fan blades, which are arranged in a rectangular array, and the front end of the machine body is provided with a visual inspection device.

[0016] By adopting the above technical solution, the four fan blades arranged in a rectangular array on the top of the fuselage provide stable flight power for the drone. This layout enables the drone to maintain balance during flight, reduces swaying, and improves flight stability.

[0017] Furthermore, the landing platform is configured with a rectangular structure.

[0018] By adopting the above technical solution, the landing platform is designed with a rectangular structure, providing ample landing space for the drone. This makes it easier for the drone to land accurately on the landing platform, reducing landing difficulties or collision risks caused by insufficient landing space, and improving the safety and success rate of drone landings.

[0019] In summary, the present invention has the following main advantages:

[0020] 1. This utility model, through the inclusion of a rope loop, wireless charging receiver, fan blades, safety rope, rope body, counterweight, hook, functional mechanism, fixing plate, base, conductive track, electric slide, landing platform, movable groove, sliding rod, and wireless charging transmitter, enables the use of a bridge inspection drone based on bridge safety performance. During operation, the GPS sensor within the electric slide can acquire the drone's real-time position information, allowing the electric slide to precisely follow the drone's movement and ensuring the landing platform maintains a suitable position relative to the drone. The wireless charging transmitter on the landing platform works in conjunction with the wireless charging receiver at the bottom of the drone, automatically charging when the drone lands on the platform. Furthermore, during extended bridge inspections, the drone can land multiple times on the platform to recharge, effectively extending its endurance and ensuring the continuity and integrity of the inspection work. Additionally, the safety rope connects the drone's rope loop to the electric slide's sliding rod. In the event of an accident such as fan blade overload or sudden malfunction causing loss of balance, the safety rope can quickly pull the drone back, preventing it from falling directly below the bridge and reducing economic losses due to drone damage. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a partial three-dimensional structural diagram of the UAV of this utility model;

[0023] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A;

[0024] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B.

[0025] In the diagram: 1. Drone; 101. Body; 102. Mounting head; 103. Rope loop; 104. Wireless charging receiver; 105. Fan blade; 2. Safety rope; 201. Rope body; 202. Counterweight; 203. Hook and loop; 3. Functional mechanism; 301. Fixing plate; 302. Base; 303. Conductive track; 304. Electric slide; 305. Landing platform; 306. Movable slot; 307. Slide bar; 308. Wireless charging transmitter. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] A type of unmanned aerial vehicle (UAV) for bridge inspection based on bridge safety performance, such as Figures 1-4 As shown, the system includes a drone 1, which is connected to a functional mechanism 3 via a safety rope 2. The functional mechanism 3 includes a fixed plate 301, which is fixedly connected to one side of an external bridge. A base 302 is provided on one side of the fixed plate 301. An electric slide 304 is slidably connected to the top of the base 302 via a conductive rail 303. A landing platform 305 is provided on the top of the electric slide 304, and a wireless charging transmitter 308 is provided on the top of the landing platform 305. A GPS sensor is provided inside the electric slide 304. The drone 1 includes a body 101, and a rope loop 103 is fixedly connected to the bottom of the body 101 via a mounting head 102. A wireless charging receiver 104 is provided on one side of the mounting head 102. A movable groove 306 is provided on one side of the electric slide 304, and a sliding rod 307 is provided in the movable groove 306. A safety rope 2 is installed on the sliding rod 307 and the rope loop 103. The fixed plate 301 of the functional mechanism 3 is securely connected to the external bridge, providing reliable support for the entire system. The electric slide 304 uses a GPS sensor to track the position of the drone 1 in real time and slides precisely on the conductive track 303, ensuring that the landing platform 305 always maintains a suitable relative position with the drone. The wireless charging transmitter 308 on the landing platform 305 works in conjunction with the wireless charging receiver 104 on the bottom of the drone 1 to provide a convenient charging method for the drone, reducing inspection interruptions caused by insufficient power and greatly improving the efficiency and continuity of bridge inspection work.

[0028] See Figure 1 , Figure 2 The safety rope 2 includes a rope body 201 with multiple counterweights 202 mounted on it. These counterweights enhance the stability and sag of the safety rope. During the flight of the drone 1, the counterweights 202 effectively reduce the swaying of the safety rope 2, preventing interference with the drone's flight attitude and ensuring stable flight, thereby improving the accuracy of bridge inspection data. Simultaneously, the counterweights 202 increase the weight of the safety rope 2, allowing for faster catching of the drone in case of an accident, preventing it from falling and causing greater damage.

[0029] See Figure 1 , Figure 2 , Figure 3 The other end of the rope 201 is equipped with a hook 203, which is sleeved on the slide bar 307. This connection method is not only simple to install but also easy to disassemble. In actual use, when it is necessary to replace the safety rope 2 or perform equipment maintenance, the operation can be completed quickly without complicated tools and procedures, greatly saving maintenance time and costs, and improving the maintainability and efficiency of the equipment.

[0030] See Figure 1 , Figure 2 The conductive rail 303 powers the electric slide 304. The entire functional mechanism 3 is made of stainless steel. The conductive rail 303 powers the electric slide 304, ensuring its normal operation and enabling it to slide accurately according to GPS sensor signals, thus ensuring the landing platform 305 moves with the UAV. The functional mechanism 3 is made entirely of stainless steel, possessing excellent corrosion resistance and high strength, allowing it to adapt to various harsh bridge inspection environments, such as humid, rainy, or corrosive gas environments. This extends the equipment's service life and reduces the risk of inspection work interruptions due to equipment damage.

[0031] See Figure 1 , Figure 2 The top of the fuselage 101 is equipped with four fan blades 105 arranged in a rectangular array. A visual inspection device 106 is located at the front of the fuselage 101. The four fan blades 105 on the top of the fuselage 101 provide stable flight power for the UAV, enabling it to maintain good balance and attitude during flight, reducing swaying, and improving flight stability and controllability. The visual inspection device 106 at the front of the fuselage 101 can acquire real-time safety performance information of the bridge, providing accurate data support for inspection work, helping to promptly identify problems with the bridge, and improving the accuracy and reliability of the inspection.

[0032] See Figure 1 The landing platform 305 has a rectangular structure, which provides ample landing space, making it easier and more accurate for the drone to land on the platform, reducing landing difficulty and risk. At the same time, the rectangular structure facilitates the installation and fixation of equipment such as the wireless charging transmitter 308, simplifying equipment layout and maintenance, and contributing to improved overall equipment performance and reliability.

[0033] The implementation principle of this embodiment is as follows: First, the functional mechanism 3 is securely installed on one side of the external bridge with the help of the fixing plate 301;

[0034] During normal bridge inspection operations, UAV 1 takes off from landing platform 305. The four fan blades 105 arranged in a rectangular array on the top of the body 101 start to operate, providing flight power for UAV 1, enabling it to carry out safety performance inspection work in an orderly manner along the bridge. At this time, the GPS sensor installed in the electric slide 304 can obtain the location information of UAV 1 in real time and accurately. Based on this information, the electric slide 304 slides along the conductive track 303 on the top of the base 302. Its sliding process is highly synchronized with the movement of UAV 1, ensuring that the landing platform 305 is always in a suitable position and ready to receive the landing of UAV 1 at any time.

[0035] Meanwhile, one end of the safety rope 201 is connected to the rope loop 103 on the mounting head 102 at the bottom of the drone 1, and the other end is connected to the slide bar 307 in the movable groove 306 of the electric slide seat 304 through the hook 203. Multiple counterweights 202 are also provided on the rope 201. These counterweights 202 increase the weight and stability of the safety rope 2, so that it can hang naturally and not easily shake during the flight of the drone 1. Once the drone 1 encounters an accident during flight, such as the overload of the fan blade 105 or a sudden malfunction that causes it to lose balance, the safety rope 2 can quickly pull the drone 1 to prevent it from falling directly to the bottom of the bridge, avoiding safety threats to pedestrians and vehicles below, and also reducing the economic losses caused by damage to the drone 1.

[0036] In addition, when the drone 1 runs out of power during flight, it can fly to the landing platform 305 using its own flight capability. At this time, the wireless charging receiver 104 set on one side of the body 101 and the wireless charging transmitter 308 on the top of the landing platform 305 cooperate to realize the wireless charging function and replenish the power of the drone 1. After charging is completed, the drone 1 can take off again and continue to complete the subsequent bridge inspection work. Throughout the process, the functional mechanism 3 is made of stainless steel. This material has good corrosion resistance and high strength, and can adapt to bridge inspection work in different environments, ensuring the long-term stable operation of the equipment.

[0037] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A UAV for bridge inspection based on bridge safety performance, characterized in that: The device includes a drone (1), which is connected to a functional mechanism (3) via a safety rope (2). The functional mechanism (3) includes a fixed plate (301), which is fixedly connected to one side of an external bridge. A base (302) is provided on one side of the fixed plate (301). An electric slide (304) is slidably connected to the top of the base (302) via a conductive rail (303). A landing platform (305) is provided on the top of the electric slide (304). A wireless charging transmitter (308) is provided on the top of the landing platform (305). A GPS sensor is provided inside the electric slide (304). The drone (1) includes a body (101), and a rope loop (103) is fixedly connected to the bottom of the body (101) through a mounting head (102), and a wireless charging receiver (104) is provided on one side of the mounting head (102). The electric slide (304) has a movable groove (306) on one side, and a slide rod (307) is provided in the movable groove (306). A safety rope (2) is installed on the slide rod (307) and the rope loop (103).

2. The UAV for bridge inspection based on bridge safety performance according to claim 1, characterized in that: The safety rope (2) includes a rope body (201) on which a plurality of counterweights (202) are provided.

3. The UAV for bridge inspection based on bridge safety performance according to claim 2, characterized in that: The other end of the rope (201) is provided with a hook (203), which is connected to the slide bar (307).

4. The UAV for bridge inspection based on bridge safety performance according to claim 1, characterized in that: The conductive track (303) is used to power the electric slide (304), and the entire material of the functional mechanism (3) is stainless steel.

5. The UAV for bridge inspection based on bridge safety performance according to claim 1, characterized in that: The top of the body (101) is provided with four fan blades (105), which are arranged in a rectangular array. The front end of the body (101) is provided with a visual inspection device (106).

6. The UAV for bridge inspection based on bridge safety performance according to claim 1, characterized in that: The landing platform (305) is arranged in a rectangular structure.