A drone for tower crane inspection
By designing a drone for tower crane inspection, and utilizing components such as rotors, inspection probes, and suction cups, the problems of high safety risks for manual inspection and poor stability of drones in tower crane inspection have been solved, achieving efficient and stable inspection results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING LUKOU INT AIRPORT AIRPORT TECH CO LTD
- Filing Date
- 2025-07-05
- Publication Date
- 2026-06-30
AI Technical Summary
Among existing tower crane inspection technologies, manual inspection has high safety risks and low efficiency, while drone inspection has difficulty maintaining stability and high accuracy on complex steel structures.
A drone for tower crane inspection was designed, equipped with components such as rotors, inspection probes, suction cups, and electric push rods. It can move flexibly and fit closely to the surface of steel structures, and achieve stable adsorption and multi-degree-of-freedom adjustment through motors and vacuum generators.
It achieves high efficiency, stability, and high precision in tower crane inspection, accurately capturing potential problems, adapting to steel structures of different shapes, and improving the comprehensiveness and safety of inspection.
Smart Images

Figure CN224427864U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tower crane inspection technology, specifically to a drone used for tower crane inspection. Background Technology
[0002] As a critical lifting equipment on construction sites, the safety of steel structure tower cranes is paramount. Inspection technology is a crucial means of ensuring safe operation. Currently, various inspection techniques are commonly used. Visual inspection is fundamental, where inspectors visually examine the surface of the tower crane's steel structure for defects such as cracks, deformation, and corrosion using simple tools. Non-destructive testing (NDT) techniques are more precise. For example, ultrasonic testing can detect hidden cracks within the steel structure; magnetic particle testing can detect minute cracks on and near the surface of ferromagnetic materials; and radiographic testing can clearly reveal the internal structure, accurately locating the position and size of defects. Furthermore, stress-strain testing can monitor the stress and strain state of the tower crane in real time during operation, determining whether it exceeds safe limits. Simultaneously, with the help of sensors, the Internet of Things (IoT), and other technologies, remote monitoring systems can be built to achieve real-time, remote monitoring of the tower crane's steel structure, promptly identifying potential safety hazards and providing comprehensive protection for the safe operation of the tower crane, ensuring the smooth progress of construction.
[0003] In existing technologies, the inspection of steel structure tower cranes mainly relies on two methods: manual inspection and drone aerial photography. However, both have significant shortcomings. During manual inspection, inspectors need to work at high altitudes, facing great safety risks. Moreover, the inspection efficiency is relatively low. The airflow around complex steel structures is changeable, and drones are easily interfered with, resulting in poor hovering stability and difficulty in maintaining a stable position. This makes it difficult for drones to achieve high-precision close-range inspections. For some minor steel structure damage or potential problems, we need a drone for tower crane inspection. Summary of the Invention
[0004] The purpose of this invention is to provide a drone for tower crane inspection, in order to solve the existing problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a drone for tower crane inspection, comprising a casing, a camera mounted on the casing, an adjustment component inside the casing, a rotor on one side of the adjustment component, a detection component at the bottom of the casing, the detection component including a mounting plate fixed inside the casing, an electric push rod movably connected to the bottom of the mounting plate, a platform movably connected to the output end of the electric push rod, and a detection probe mounted on the platform.
[0006] Preferably, the mounting plate forms a movable structure with the platform via an electric push rod, and the electric push rod is positioned between the mounting plate and the platform.
[0007] Preferably, the platform has multiple detection probes, and the multiple detection probes are arranged at equal distances at the bottom of the platform.
[0008] Preferably, the adjustment component includes a motor, which is fixed inside the housing. The output end of the motor is fixedly connected to a turntable, and the bottom of the turntable is movably connected to a movable rod. One end of the movable rod is movably connected to a positioning plate. A carbon fiber corrugated tube is fixedly connected to the outer wall of the housing, and a positioning groove is provided inside the carbon fiber corrugated tube.
[0009] Preferably, the turntable forms a movable structure with the positioning plate via a movable rod, and the movable rod is disposed between the turntable and the positioning plate.
[0010] Preferably, the carbon fiber corrugated pipe forms a locking structure with the positioning plate through a positioning groove, and the inner diameter of the positioning groove matches the outer diameter of the positioning plate, and the outer wall of the positioning plate is fitted to the inner wall of the positioning groove.
[0011] Preferably, the outer wall of the carbon fiber corrugated pipe is provided with an equipment box, the equipment box is provided with suction cups, the equipment box is provided with a vacuum generator, and the number of suction cups is six sets, and the six sets of suction cups are evenly distributed around the casing.
[0012] Compared with the prior art, the beneficial effects of this utility model are: a drone for tower crane inspection.
[0013] (1) The rotor drive is set to move the detection device flexibly into the steel structure surface of the tower crane, which facilitates the comprehensive inspection of the steel structure of the tower crane. When landing, the six suction cups can closely adhere to the steel structure surface to ensure the stability of the equipment. The electric push rod is started, and the platform is moved and adjusted under the support of the mounting plate. The three electric push rods work together to realize the adjustment of the platform's degree of freedom, so that the detection probe can better adhere to the steel structure surface, greatly improving the detection effect, accurately capturing potential problems, and fully meeting the daily inspection needs.
[0014] (2) By starting the motor to drive the turntable, movable rod and other components, the positioning plate can be easily removed from the carbon fiber corrugated tube positioning groove, making the carbon fiber corrugated tube part hollow. The vacuum generator draws a vacuum to make the suction cup adhere to the steel structure surface, and the hollow part can be bent and adjusted appropriately, which can flexibly adapt to steel structures of different shapes, greatly improving the fit and adaptability of the equipment to the steel structure surface, enhancing the adsorption stability, and ensuring the safety and efficiency of subsequent operations. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of the present utility model;
[0016] Figure 2 This is a schematic diagram of the detection component structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the adjustment component structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the carbon fiber corrugated pipe and positioning plate structure of this utility model.
[0019] In the diagram: 1. Housing; 2. Camera; 3. Adjustment assembly; 301. Motor; 302. Turntable; 303. Movable rod; 304. Positioning plate; 305. Carbon fiber corrugated pipe; 306. Positioning groove; 4. Rotor; 5. Detection assembly; 501. Mounting plate; 502. Electric push rod; 503. Platform; 504. Detection probe; 505. Equipment box; 506. Suction cup; 507. Vacuum generator. Detailed Implementation
[0020] The following is in conjunction with the appendix Figure 1 -Appendix Figure 4 This application will be described in further detail below.
[0021] Example 1. This embodiment of the present invention provides a drone for tower crane inspection, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the device includes a housing 1, on which a camera 2 is mounted. An adjustment assembly 3 is located inside the housing 1, with a rotor 4 on one side of the adjustment assembly 3. A detection assembly 5 is located at the bottom of the housing 1. The detection assembly 5 includes a mounting plate 501, which is fixed inside the housing 1. An electric push rod 502 is movably connected to the bottom of the mounting plate 501, and a platform 503 is movably connected to the output end of the electric push rod 502. The mounting plate 501 and the platform 503 form a movable structure via the electric push rod 502, and the electric push rod 502 is positioned on the mounting plate... The connection between the electric push rod 502 and the mounting plate 501 is enhanced, allowing the electric push rod 502 to adjust the angle of the platform 503 with the support of the mounting plate 501. Multiple detection probes 504 are installed on the platform 503, and these probes are evenly spaced at the bottom of the platform 503, further strengthening the connection between the platform 503 and the detection probes 504. This allows the platform 503 to rely on the multiple detection probes 504 at its bottom for adjustment. The tower crane steel structure is inspected and processed. An equipment box 505 is installed on the outer wall of the carbon fiber corrugated pipe 305. Suction cups 506 are installed on the equipment box 505, and a vacuum generator 507 is installed inside the equipment box 505. There are six sets of suction cups 506, evenly spaced around the casing 1. The suction cups 506 are connected to the equipment box 505 via universal joints, enhancing the connection between the equipment box 505 and the suction cups 506. This allows the six sets of suction cups 506 to be adjusted at appropriate angles using the universal joints, and is suitable for uneven surfaces. The rotor 4 can move the casing 1 and the detection device on the steel structure surface. When landing, it can be tightly attached to the steel structure surface of the tower crane by relying on the six sets of suction cups 506 at the bottom. By activating the electric push rod 502, the electric push rod 502 can be supported by the mounting plate 501 to move and adjust the platform 503. The platform 503 can be adjusted in degrees of freedom by the three sets of electric push rods 502, which can improve the detection effect of the detection probe 504 on the steel structure surface and meet people's daily use needs.
[0022] Example 2. In a further preferred embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the adjustment component 3 includes a motor 301, which is fixed inside the housing 1. A turntable 302 is fixedly connected to the output end of the motor 301. A movable rod 303 is movably connected to the bottom of the turntable 302. A positioning plate 304 is movably connected to one end of the movable rod 303. The turntable 302 and the positioning plate 304 form a movable structure through the movable rod 303. The movable rod 303 is positioned between the turntable 302 and the positioning plate 304, enhancing the connection between them. This allows the turntable 302 to move by pushing the positioning plate 304 using the movable rod 303. A carbon fiber corrugated pipe 305 is fixedly connected to the outer wall of the housing 1. A positioning groove 306 is provided inside the carbon fiber corrugated pipe 305. The carbon fiber corrugated pipe 305 and the positioning plate 304 form a locking structure through the positioning groove 306. The inner diameter of the positioning groove 306 matches the outer diameter of the positioning plate 304, and the outer wall of the positioning plate 304 and the positioning groove 306 are locked together. The inner wall of the 06 is fitted together, which strengthens the connection between the carbon fiber corrugated tube 305 and the positioning plate 304. This allows the positioning plate 304 to be inserted into the positioning groove 306 inside the carbon fiber corrugated tube 305 for positioning and installation, improving the connection stability between the carbon fiber corrugated tube 305 and the positioning plate 304. By starting the motor 301, the motor 301 drives the turntable 302 to rotate, which in turn drives the movable rod 303 to move. The movable rod 303 then drives the positioning plate 304 to move, allowing the positioning plate 304 to be removed from the positioning groove 306 inside the carbon fiber corrugated tube 305. This makes the carbon fiber corrugated tube 305 partially hollow. At this time, the vacuum generator 507 evacuates the suction cup 506, causing the suction cup 506 to adhere to the steel structure surface. Simultaneously, the hollow part of the carbon fiber corrugated tube 305 can be bent at a moderate angle to suit steel structure surfaces of different shapes.
[0023] Working Principle: During operation, the rotor 4 can move the casing 1 and the detection device. During landing, the six suction cups 506 at the bottom firmly adhere to the surface of the tower crane's steel structure. Starting the motor 301 rotates the turntable 302, which in turn moves the movable rod 303. The movable rod 303 then moves the positioning plate 304, allowing it to be removed from the positioning groove 306 within the carbon fiber corrugated tube 305. This partially hollows out the carbon fiber corrugated tube 305, creating a vacuum. The generator 507 evacuates the suction cup 506, causing it to adhere to the steel structure surface. Simultaneously, the hollow carbon fiber corrugated tube 305 can be adjusted to bend at a suitable angle to fit different shaped steel structure surfaces. Furthermore, after adsorption is complete, the electric push rod 502, supported by the mounting plate 501, can move and adjust the platform 503. The three sets of electric push rods 502 allow for degree of freedom adjustment of the platform 503, improving the detection effect of the probe 504 on the steel structure surface and meeting daily usage needs.
[0024] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.
Claims
1. A drone for tower crane inspection, comprising a casing (1), characterized in that: A camera (2) is provided on the housing (1). An adjustment component (3) is provided inside the housing (1). A rotor (4) is provided on one side of the adjustment component (3). A detection component (5) is provided at the bottom of the housing (1). The detection component (5) includes a mounting plate (501) and the mounting plate (501) is fixed inside the housing (1). An electric push rod (502) is movably connected to the bottom of the mounting plate (501). A platform (503) is movably connected to the output end of the electric push rod (502). A detection probe (504) is provided on the platform (503).
2. The UAV for tower crane inspection according to claim 1, characterized in that: The mounting plate (501) forms a movable structure with the platform (503) via an electric push rod (502), and the electric push rod (502) is located between the mounting plate (501) and the platform (503).
3. The UAV for tower crane inspection according to claim 1, characterized in that: The platform (503) has multiple detection probes (504), and the multiple detection probes (504) are arranged at equal distances at the bottom of the platform (503).
4. The UAV for tower crane inspection according to claim 1, characterized in that: The adjustment component (3) includes a motor (301), and the motor (301) is fixed inside the housing (1). The output end of the motor (301) is fixedly connected to a turntable (302). The bottom of the turntable (302) is movably connected to a movable rod (303). One end of the movable rod (303) is movably connected to a positioning plate (304). The outer wall of the housing (1) is fixedly connected to a carbon fiber corrugated pipe (305). The interior of the carbon fiber corrugated pipe (305) is provided with a positioning groove (306).
5. The UAV for tower crane inspection according to claim 4, characterized in that: The turntable (302) forms a movable structure with the positioning plate (304) via the movable rod (303), and the movable rod (303) is located between the turntable (302) and the positioning plate (304).
6. The UAV for tower crane inspection according to claim 5, characterized in that: The carbon fiber corrugated pipe (305) forms a locking structure with the positioning plate (304) through the positioning groove (306), and the inner diameter of the positioning groove (306) matches the outer diameter of the positioning plate (304), and the outer wall of the positioning plate (304) is fitted to the inner wall of the positioning groove (306).
7. The UAV for tower crane inspection according to claim 4, characterized in that: The outer wall of the carbon fiber corrugated pipe (305) is provided with an equipment box (505), the equipment box (505) is provided with a suction cup (506), the equipment box (505) is provided with a vacuum generator (507), the number of suction cups (506) is six sets, and the six sets of suction cups (506) are evenly arranged around the casing (1).