Bridge safety detection device

Abstract

The utility model discloses a bridge safety detection equipment relates to bridge detection technical field, including unmanned plane, the top middle place fixed mounting of unmanned plane has steel bar rust detection appearance host computer, the bottom four corners of unmanned plane all are fixedly installed with support leg, the bottom of unmanned plane is close to the position of two ends and all is fixedly installed with folding frame, the bottom center of unmanned plane is fixedly installed with automatic telescopic device, the output of automatic telescopic device is fixedly connected with moving board, the bottom of moving board is close to the position of the front end and is fixedly installed with telescopic column, the bottom of telescopic column is fixedly installed with pressure sensor, the bottom of moving board is close to the position of the rear end and is fixedly installed with steel bar rust detection end.

Description

Technical Field

[0001] This utility model relates to the field of bridge inspection technology, specifically a bridge safety inspection device. Background Technology

[0002] The steel reinforcement corrosion detector is a key tool in bridge safety inspection equipment. Its core function is to detect the degree of corrosion of steel reinforcement inside concrete non-destructively through electrochemical principles.

[0003] Chinese utility model patent CN219758135U discloses a multifunctional steel reinforcement corrosion detector, including a main unit and a detection instrument. The main unit has several connection interfaces on its top. The detection instrument includes several detection components, which are connected to different connection interfaces on the main unit to form different detection structures. This solution integrates the functions of the equipment structurally, enabling the use of a single device to complete different detection requirements, thus greatly improving the reliability of steel reinforcement corrosion detection.

[0004] Existing steel corrosion detectors struggle to reach high-altitude and complex structural areas of bridges, resulting in low safety and efficiency. They lack precise positioning mechanisms, and data inaccuracies arise from tilting or unstable contact at the detection end. The detection lines are prone to wear and tear, component disassembly is complex, and maintenance costs are high; line deployment and retraction rely on manual labor and are easily tangled. Manual preparation and retrieval are time-consuming and unsuitable for large-scale testing needs. Therefore, a bridge safety inspection device is needed to address these issues. Utility Model Content

[0005] This invention provides a bridge safety inspection device to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bridge safety inspection device, comprising a drone, wherein a main unit for detecting steel corrosion is fixedly installed at the top center of the drone, support legs are fixedly installed at the four corners of the bottom of the drone, folding frames are fixedly installed at the bottom of the drone near the front and rear ends, an automatic telescopic device is fixedly installed at the bottom center of the drone, a movable plate is fixedly connected to the output end of the automatic telescopic device, a telescopic column is fixedly installed at the bottom of the movable plate near the front end, a pressure sensor is fixedly installed at the bottom of the telescopic column, and a steel corrosion detection end is fixedly installed at the bottom of the movable plate near the rear end.

[0007] Furthermore, the tops of the two movable plates are fixedly connected to the bottoms of the two support legs near their front and rear ends, respectively.

[0008] Furthermore, an automatic retractable reel is fixedly installed on the bottom of the drone. The automatic retractable reel has a detection line inside. A connecting line is fixedly connected to the inlet end of the automatic retractable reel. The end of the connecting line away from the automatic retractable reel is connected to the main unit of the rebar corrosion detector. The end of the connecting line away from the automatic retractable reel is electrically connected to the end of the detection line away from the rebar corrosion detection end.

[0009] Furthermore, the pressure sensor and the bottom of the steel corrosion detection end are on the same horizontal line, and the main unit of the steel corrosion detector includes a data processing unit, a display module, a power supply module, a communication interface, and a control module.

[0010] Furthermore, one end of the detection line extends out of the automatic telescopic reel, passes through the top of the moving plate, and connects to the steel reinforcement corrosion detection end.

[0011] Furthermore, the automatic telescopic reel is equipped with a tension adjustment mechanism. The detection line passes through the tension adjustment mechanism and the moving plate and is connected to the steel bar corrosion detection end. The tension adjustment mechanism includes a coil spring and a limiting pulley. The coil spring is connected to the detection line and provides tension through elastic contraction. The limiting pulley is located at the outlet of the automatic telescopic reel.

[0012] Furthermore, the pressure sensor is installed at the bottom of the telescopic column via a threaded connection, and the steel bar corrosion detection end is fixed to the bottom of the moving plate via a horizontal adjustment seat, which includes mutually perpendicular X-axis adjustment screws and Y-axis adjustment screws.

[0013] Furthermore, the top of the movable plate is provided with a wire hole, one end of the detection line passes through the wire hole, the inner wall of the wire hole is provided with a wear-resistant bushing, and the detection line is detachably connected to the steel corrosion detection end through the wire hole. The detachable connection is a quick-connect connector structure.

[0014] Compared with the prior art, this utility model provides a bridge safety inspection device, which has the following features:

[0015] Beneficial effects:

[0016] 1. This bridge safety inspection equipment, carried by an unmanned aerial vehicle (UAV), can reach areas difficult to access manually, reducing operational risks. Its high mobility adapts to diverse inspection scenarios. A horizontal adjustment and pressure triggering mechanism ensures precise positioning of the inspection end. A tension adjustment mechanism stabilizes the inspection line, guaranteeing reliable data. Wear-resistant bushings and a quick-release structure reduce wear and facilitate component replacement. An automatic line retraction design reduces the risk of failure. The automatic telescopic and folding frame linkage shortens operation time, reduces manual intervention, and improves inspection efficiency. The modular design adapts to different bridge structures, and the folding and telescopic structure saves storage space and facilitates transportation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a right-side view of the overall structure of this utility model.

[0019] In the picture: 1. Drone; 2. Main unit of rebar corrosion detector; 3. Support leg; 4. Folding frame; 5. Detection line; 6. Moving plate; 7. Automatic telescopic reel; 8. Rebar corrosion detection end; 9. Automatic telescopic device; 10. Telescopic column; 11. Connecting line; 12. Pressure sensor. Detailed Implementation

[0020] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-2 This utility model discloses a bridge safety inspection device, including a drone 1. A main unit 2 for detecting steel corrosion is fixedly installed at the top center of the drone 1. Support legs 3 are fixedly installed at the four corners of the bottom of the drone 1. Folding frames 4 are fixedly installed at the bottom of the drone 1 near the front and rear ends. An automatic telescopic device 9 is fixedly installed at the bottom center of the drone 1. A moving plate 6 is fixedly connected to the output end of the automatic telescopic device 9. A telescopic column 10 is fixedly installed at the bottom of the moving plate 6 near the front end. A pressure sensor 12 is fixedly installed at the bottom of the telescopic column 10. A steel corrosion detection end 8 is fixedly installed at the bottom of the moving plate 6 near the rear end.

[0022] Specifically, the tops of the two movable plates 6 are fixedly connected to the bottoms of the two support legs 3 near the front and rear ends, respectively.

[0023] Specifically, an automatic retractable cable reel 7 is fixedly installed on the bottom of the drone 1. The automatic retractable cable reel 7 has a detection line 5 inside. The inlet end of the automatic retractable cable reel 7 is fixedly connected to a connecting line 11. The end of the connecting line 11 away from the automatic retractable cable reel 7 is connected to the main unit 2 of the steel corrosion detector. The end of the connecting line 11 away from the automatic retractable cable reel 7 is electrically connected to the detection end 8 of the detection line 5 away from the steel corrosion detection end.

[0024] Specifically, the pressure sensor 12 and the bottom of the steel corrosion detection end 8 are on the same horizontal line. The main unit 2 of the steel corrosion detector includes a data processing unit, a display module, a power supply module, a communication interface, and a control module.

[0025] Specifically, the detection line 5 extends from one end of the automatic retractable reel 7, passes through the top of the moving plate 6, and connects to the steel reinforcement corrosion detection end 8.

[0026] Specifically, the automatic telescopic reel 7 is equipped with a tension adjustment mechanism. The detection line 5 passes through the tension adjustment mechanism and the moving plate 6 and is connected to the steel rust detection end 8. The tension adjustment mechanism includes a coil spring and a limiting pulley. The coil spring is connected to the detection line 5 and provides tension through elastic contraction. The limiting pulley is located at the outlet of the automatic telescopic reel 7.

[0027] Specifically, the pressure sensor 12 is installed at the bottom of the telescopic column 10 via a threaded connection, and the steel bar corrosion detection end 8 is fixed to the bottom of the moving plate 6 via a horizontal adjustment seat. The horizontal adjustment seat includes mutually perpendicular X-axis adjustment screws and Y-axis adjustment screws.

[0028] Specifically, the top of the movable plate 6 is provided with a wire hole, one end of the detection line 5 passes through the wire hole, and the inner wall of the wire hole is provided with a wear-resistant bushing. The detection line 5 is detachably connected to the steel rust detection end 8 through the wire hole, and the detachable connection is a quick-connect connector structure.

[0029] In use, the drone 1 is driven to carry the main unit 2 of the rebar corrosion detector, the folding frame 4, the detection line 5, the moving plate 6, the automatic telescopic reel 7, the rebar corrosion detection end 8, the automatic telescopic device 9, the connecting line 11, the pressure sensor 12, and the telescopic column 10 to the target area of ​​the bridge to be inspected. The drone 1 is then smoothly positioned near the inspection area, ensuring it is stable and that the support legs 3 firmly support the fuselage. After the drone 1 is stable, the folding frame 4 is unfolded to provide space and auxiliary support for the downward movement of the moving plate 6. The automatic telescopic device 9 is activated, extending its output end and moving the moving plate 6 downwards. During this process, the detection line 5 inside the automatic telescopic reel 7 is simultaneously stretched and released. The tension adjustment mechanism adjusts the tension of the detection line 5 via a coil spring, and the limiting pulley ensures the stability of the detection line 5's exit direction. As the moving plate 6 moves downwards, the pressure sensor 12 at the bottom of the telescopic column 10 and the rebar corrosion detection end 8 move downwards synchronously. When the pressure sensor 12 contacts the surface of the bridge area to be inspected, the output end of the automatic telescopic device 9 stops moving. At the same time, the steel reinforcement corrosion detection end 8 also simultaneously contacts the area to be inspected. After contacting the bridge surface, the steel reinforcement corrosion detection end 8 transmits the detection data to the main unit 2 of the steel reinforcement corrosion detector via the detection line 5, completing the inspection of the corrosion status of the bridge area to be inspected. After the inspection is completed, the output end of the automatic telescopic device 9 is retracted, driving the moving plate 6 to move upward, and the steel reinforcement corrosion detection end 8 and the pressure sensor 12 are removed from the bridge surface. During the upward movement of the moving plate 6, the coil spring inside the automatic telescopic reel 7 contracts, retracting the detection line 5. The tension adjustment mechanism ensures that the detection line 5 is wound in an orderly manner, avoiding knots or loosening. After the moving plate 6 is reset, the folding frame 4 is retracted to reduce the space occupied by the equipment.

[0030] In summary, this bridge safety inspection equipment utilizes a drone carrier to reach areas difficult for manual labor, reducing operational risks and offering high mobility to adapt to diverse inspection scenarios. The horizontal adjustment and pressure triggering mechanisms ensure accurate positioning of the inspection end; the tension adjustment mechanism stabilizes the inspection line 5, guaranteeing reliable data; wear-resistant bushings and quick-release structures reduce wear and facilitate component replacement; the automatic line retraction design reduces the risk of failure; the automatic telescopic and folding frame 4 works in conjunction, shortening operation time, reducing manual intervention, and improving inspection efficiency; the modular design adapts to different bridge structures, and the folding and telescopic structures save storage space and facilitate transportation.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bridge safety inspection device, comprising a drone (1), characterized in that: The main unit (2) of the steel corrosion detector is fixedly installed at the top center of the drone (1). Support legs (3) are fixedly installed at the four corners of the bottom of the drone (1). Folding frames (4) are fixedly installed at the bottom of the drone (1) near the front and rear ends. An automatic telescopic device (9) is fixedly installed at the bottom center of the drone (1). A moving plate (6) is fixedly connected to the output end of the automatic telescopic device (9). A telescopic column (10) is fixedly installed at the bottom of the moving plate (6) near the front end. A pressure sensor (12) is fixedly installed at the bottom of the telescopic column (10). A steel corrosion detection end (8) is fixedly installed at the bottom of the moving plate (6) near the rear end.

2. The bridge safety inspection equipment according to claim 1, characterized in that: The tops of the two movable plates (6) near the front and rear ends are fixedly connected to the bottoms of the two support legs (3).

3. The bridge safety inspection equipment according to claim 1, characterized in that: An automatic telescopic reel (7) is fixedly installed on the bottom of the drone (1). The automatic telescopic reel (7) has a detection line (5) inside. A connecting line (11) is fixedly connected to the inlet end of the automatic telescopic reel (7). The end of the connecting line (11) away from the automatic telescopic reel (7) is connected to the main unit (2) of the steel corrosion detector. The end of the connecting line (11) away from the automatic telescopic reel (7) is electrically connected to the end of the detection line (5) away from the steel corrosion detection end (8).

4. The bridge safety inspection equipment according to claim 1, characterized in that: The pressure sensor (12) and the bottom of the steel corrosion detection end (8) are on the same horizontal line. The main unit (2) of the steel corrosion detector includes a data processing unit, a display module, a power supply module, a communication interface and a control module.

5. A bridge safety inspection device according to claim 3, characterized in that: The detection line (5) extends from one end of the automatic telescopic reel (7), passes through the top of the moving plate (6), and connects to the steel reinforcement corrosion detection end (8).

6. A bridge safety inspection device according to claim 3, characterized in that: The automatic telescopic reel (7) is equipped with a tension adjustment mechanism. The detection line (5) passes through the tension adjustment mechanism and the moving plate (6) and is connected to the steel bar corrosion detection end (8). The tension adjustment mechanism includes a coil spring and a limiting pulley. The coil spring is connected to the detection line (5) and provides tension through elastic contraction. The limiting pulley is located at the outlet of the automatic telescopic reel (7).

7. A bridge safety inspection device according to claim 1, characterized in that: The pressure sensor (12) is installed at the bottom of the telescopic column (10) by means of a threaded connection. The steel bar corrosion detection end (8) is fixed to the bottom of the moving plate (6) by a horizontal adjustment seat. The horizontal adjustment seat includes mutually perpendicular X-axis adjustment screws and Y-axis adjustment screws.

8. A bridge safety inspection device according to claim 1 or 6, characterized in that: The top of the movable plate (6) is provided with a wire hole, one end of the detection line (5) passes through the wire hole, and a wear-resistant bushing is provided on the inner wall of the wire hole. The detection line (5) is detachably connected to the steel corrosion detection end (8) through the wire hole. The detachable connection is a quick-connect connector structure.

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