Mobile video acquisition device for stay cable and suspension bridge suspender

Abstract

The utility model relates to a mobile video acquisition device for a stay cable and a suspension bridge suspender, the mobile video acquisition device is composed of a walking mechanism and a wireless camera device installed on the walking mechanism, the walking mechanism is used for walking on the suspender along the direction of a path where a main cable is arranged, and the walking mechanism comprises a carbon fiber rack, a shaft pin, a guide wheel and a rotor wing. The unmanned aerial vehicle rotor wings are adopted for driving, and the guide wheels are tightly attached to the stay cables or the suspenders; the stable state of the fuselage is adjusted and power is provided by utilizing the number of revolutions of the rotor wings, so that the whole collection system can quickly and stably move forwards along a layout path of a stay cable or a suspender.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge safety inspection, and particularly relates to a mobile video acquisition device for stay cables and suspension bridge hangers. Background Art

[0002] As is well known, stay cables and hangers are the main load-bearing components of cable-stayed bridges and suspension bridges respectively, which are crucial for the structural safety of bridges and are difficult to replace. In the past, due to the generally large safety factors of stay cables and hangers, it was often considered that they would not undergo force failure. In fact, the closer to the main tower and the main cable, the greater the tension of the stay cables and hangers, and the more likely they are to be damaged. The working state of stay cables and hangers is one of the important indicators of whether cable-stayed bridges and suspension bridges are in normal operation. It is very important to timely detect the appearance quality of stay cables and main cables under operating conditions, especially whether the anti-corrosion coating is damaged and whether the hanger clamp is loose, etc., for mastering the working state of the bridge. Summary of the Invention

[0003] The utility model provides a mobile video acquisition device for stay cables and suspension bridge hangers, which performs video acquisition detection and inspection by moving along the stay cables or suspension bridge hangers, and provides a new technical solution for more quickly and accurately judging the health state of stay cables or cables at high altitudes.

[0004] A mobile video acquisition device for stay cables and suspension bridge hangers is composed of a traveling mechanism and a wireless camera device installed on the traveling mechanism. The traveling mechanism is used to move along the path direction arranged along the main cable on the hanger. The traveling mechanism includes: a carbon fiber frame, a shaft pin, a guide wheel, and a rotor. Among them:

[0005] The carbon fiber frame is composed of 2 semi-circular skeletons, and is fixed by a shaft pin to form a circular fitting device for clamping the stay cable or hanger. A spring device is installed at the root of the guide wheel so that the guide wheel closely adheres to the surface of the hanger and moves. The rotor is a power mechanism, which provides forward power and stabilizes the fuselage for the device;

[0006] The carbon fiber frame is fixedly connected to the guide wheel, the root of the rotor bracket, and the wireless camera device. The number of cameras is 4, which are respectively arranged in 4 directions for omnidirectional video shooting.

[0007] Battery packs are symmetrically arranged inside the semi-circular skeleton.

[0008] An annular anti-collision wing cover is arranged outside the rotor.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] To solve the problems of large weight, complex assembly, low efficiency and insecurity of current stay cable and hanger detection equipment, the present invention adopts a drone rotor drive, with the guide wheels closely attached to the stay cable or hanger; adjusts the stable state of the fuselage and provides power by using the rotation speed of the rotor, enabling the entire acquisition system to move forward quickly and stably along the layout path of the stay cable or hanger; meanwhile, uses 4 wireless cameras to conduct all-round video detection of the stay cable or hanger in the circumferential direction. The video acquisition system provided by the present invention is lightweight, simple and reliable in structure compared with the existing detection and acquisition equipment, is convenient to carry and install, can be placed in the high altitude for remote control tracking detection, and can greatly improve the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is the working side view of the mobile video acquisition device for stay cables and suspension bridge hangers;

[0012] Figure 2 is the working top view of the mobile video acquisition device for stay cables and suspension bridge hangers;

[0013] Wherein:

[0014] rotor 1, wireless camera device 2, semi-circular frame 3, battery pack 4, axle pin 5, hanger 6, annular anti-collision wing cover 7, guide wheel 8, spring device 9. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The following further elaborates in detail on a mobile video acquisition device for stay cables and suspension bridge hangers of the present utility model in conjunction with the drawings and specific embodiments: Embodiment

[0016] A mobile video acquisition device for stay cables and suspension bridge hangers is composed of a traveling mechanism and a wireless camera device 2 installed on the traveling mechanism. The traveling mechanism is used to travel along the path direction of the main cable on the stay cable or hanger.

[0017] The traveling mechanism includes: a carbon fiber frame, an axle pin, four guide wheels arranged symmetrically and evenly, and a rotor. The carbon fiber frame is composed of 2 semi-circular frames 3 and is fixed by an axle pin 5 to form a circular fitting device for clamping the hanger. A spring device 9 is installed at the root of the guide wheel 8 so that the guide wheel 8 moves closely against the surface of the hanger 6. The rotor 1 is a power mechanism, providing forward power and stabilizing the fuselage for the equipment. The carbon fiber frame is fixedly connected to the guide wheel 8, the rotor bracket, and the wireless camera device. The number of cameras is 4, which are respectively arranged in 4 directions for all-round video shooting. Two battery packs are symmetrically arranged inside the semi-circular frame. An annular anti-collision wing cover is arranged outside the rotor.

[0018] The above has described in detail the examples of the present utility model in conjunction with the embodiments. However, the present utility model is not limited to the above examples. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes made without departing from the gist of the present utility model should also be regarded as the protection scope of the present utility model.

Claims

1. A mobile video acquisition device for a stay cable and a suspension bridge suspender, characterized in that: It is composed of a walking mechanism and a wireless camera device installed on the walking mechanism. The walking mechanism is used to walk on the boom along the path of the main cable. The walking mechanism includes: a carbon fiber frame, an axle pin, a guide wheel and a rotor, wherein: The carbon fiber frame is composed of two semicircular frames, which are fixed by axle pins to form a circular fitting device that holds the inclined cable or the boom. A spring device is installed at the root of the guide wheel to enable the guide wheel to move closely against the surface of the boom. The rotor is a power mechanism that provides forward power for the equipment and stabilizes the fuselage. The carbon fiber frame is fixedly connected to the guide wheel, the root of the rotor bracket, and the wireless camera device. There are four cameras, which are arranged in four directions for all-round video shooting.

2. The mobile video acquisition device for the cable-stayed cable and suspension bridge suspender according to claim 1, characterized in that: The battery packs are symmetrically arranged within the semicircular frame.

3. The mobile video acquisition device for the cable-stayed cable and suspension bridge suspender according to claim 1, characterized in that: An annular anti-collision wing cover is arranged outside the rotor.

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