CN219325934U - Unmanned aerial vehicle system for checking diseases at bottom of overhead bridge - Google Patents

Unmanned aerial vehicle system for checking diseases at bottom of overhead bridge Download PDF

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CN219325934U
CN219325934U CN202320605456.5U CN202320605456U CN219325934U CN 219325934 U CN219325934 U CN 219325934U CN 202320605456 U CN202320605456 U CN 202320605456U CN 219325934 U CN219325934 U CN 219325934U
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unmanned aerial
aerial vehicle
vehicle body
vehicle system
inspecting
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贾亦俊
王令云
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Shanghai Jiaotong University
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Shanghai Jiaotong University
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Abstract

The utility model relates to a bridge engineering detection system, in particular to an unmanned aerial vehicle system for detecting diseases at the bottom of an overhead bridge, which comprises an unmanned aerial vehicle body, a connecting cable and a control end assembly, wherein the unmanned aerial vehicle body is electrically connected with the control end assembly through the connecting cable; the center of the unmanned aerial vehicle body is provided with a detection camera; the unmanned aerial vehicle organism on be connected with a plurality of propellers through the wing arm, the outside cover of propeller be equipped with the protection casing of being connected on the wing arm, protection casing top center be connected with the gyro wheel through flexible support piece. Compared with the prior art, the unmanned aerial vehicle detection device solves the problem that in the prior art, the unmanned aerial vehicle is easy to hit a propeller when being detected at the beam bottom, so that the unmanned aerial vehicle is damaged, and the safety guarantee of the unmanned aerial vehicle and the normal development of the beam bottom detection are realized.

Description

Unmanned aerial vehicle system for checking diseases at bottom of overhead bridge
Technical Field
The utility model relates to a bridge engineering detection system, in particular to an unmanned aerial vehicle system for detecting diseases of the bottom of an overhead bridge.
Background
The defects of the beam bottom in the bridge structure are the most important and critical operation safety influencing factors in the operation process of the bridge structure. After the bridge is designed and built, manual inspection is required to be regularly arranged, so that structural damage can be found in time, the structural state can be estimated in time, and corresponding diagnosis, treatment, repair and reinforcement work can be performed. In the process of inspection, the beam bottom is always the most interesting position and is also the position with more concentrated diseases.
In urban elevations, the bridge substructure is typically located in the center or on both sides of the road, including supporting piers and cap beams, over which an overhead road is formed by the bridge superstructure. Because viaducts have traffic demands under the bridge, the bridge piers of the common urban viaduct are designed to have heights of several meters or even tens of meters so as to avoid mutual influence. However, when the height is increased, the traditional manual operation is difficult to approach and observe, and the inspection can be continued only after the bridge inspection vehicle or the ascending vehicle approaches the beam bottom, but no matter which mode is adopted, the road is blocked, so that urban traffic can be influenced, and particularly, the situation of serious congestion is extremely easy to generate in the area with larger traffic flow.
For this reason, a way of approaching the bridge mechanically by means of a small unmanned aerial vehicle becomes a possible solution, such as the unmanned aerial vehicle device disclosed in chinese patents cn201721144472.X, cn202021703883.X, etc. However, the signal difference problem existing when the unmanned aerial vehicle is arranged at the beam bottom can not be overcome by the traditional unmanned aerial vehicle and the unmanned aerial vehicle in the prior art, so that the flight of the unmanned aerial vehicle is difficult to be well controlled, the screw propeller is easy to collide with a bridge structure or other structures, and the unmanned aerial vehicle is damaged. Therefore, it is desirable to provide an unmanned aerial vehicle system to avoid damage caused by collisions of the unmanned aerial vehicle during use.
Disclosure of Invention
The utility model aims to solve at least one of the problems and provides an unmanned aerial vehicle system for checking diseases of the beam bottom of an overhead bridge, so as to solve the problem that unmanned aerial vehicles are easy to hit a propeller to cause damage of the unmanned aerial vehicle when the unmanned aerial vehicle is detected at the beam bottom in the prior art, and realize the safety guarantee of the unmanned aerial vehicle and the normal development of the detection of the beam bottom.
The aim of the utility model is achieved by the following technical scheme:
the unmanned aerial vehicle system for inspecting the defects of the bottom of the overhead bridge comprises an unmanned aerial vehicle body, a connecting cable and a control end assembly, wherein the unmanned aerial vehicle body is electrically connected with the control end assembly through the connecting cable;
the center of the unmanned aerial vehicle body is provided with a detection camera;
the unmanned aerial vehicle organism on be connected with a plurality of propellers through the wing arm, the outside cover of propeller be equipped with the protection casing of being connected on the wing arm, protection casing top center be connected with the gyro wheel through flexible support piece.
Preferably, a plurality of supporting feet are arranged at the bottom of the unmanned aerial vehicle body.
Preferably, the detection camera is mounted on a cradle head, and the cradle head is mounted at the central position of the unmanned aerial vehicle body.
Preferably, the rollers are arranged at equal heights.
Preferably, the roller is a universal wheel.
Preferably, the flexible support is a spring support.
Preferably, the connection cable includes a power supply cable and a signal transmission line.
Preferably, the control end assembly comprises a power supply and a remote control handle;
the power supply is electrically connected with the unmanned aerial vehicle body through a connecting cable;
the remote control handle and the unmanned aerial vehicle body are electrically connected through a connecting cable, or the remote control handle and the unmanned aerial vehicle body are in wireless connection.
Preferably, the power supply is a backpack battery or an outdoor mobile power supply, and the power supply supplies power to the unmanned aerial vehicle body through a power supply cable.
Preferably, the remote control handle is provided with a video signal output device. The remote control handle is connected to the unmanned aerial vehicle body through a signal transmission line so as to control the movement of the unmanned aerial vehicle body; the video signal output device is connected to the detection camera through a signal transmission line and displays imaging pictures of the detection camera in real time.
The working principle of the utility model is as follows:
the unmanned aerial vehicle is close to the beam bottom through taking off and can carry out the video inspection to the position of treating, the outside protection casing that sets up of screw can prevent effectively that the horizontal direction from colliding with, flexible support piece and gyro wheel that the protection casing top set up then can avoid the screw to receive the collision from the top.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the lifting force is provided by the plurality of groups of propellers, the unmanned aerial vehicle carrying the tripod head camera is lifted to the beam bottom for detection, and the safety of equipment at the beam bottom is ensured by a series of protection and power supply measures, so that the unblocked traffic detection of the beam bottom diseases of the urban viaduct is realized.
The propeller is externally covered with a protective cover to prevent the propeller from touching the beam bottom structure to be damaged; the screw upper portion sets up spring support and gyro wheel, makes unmanned aerial vehicle accessible gyro wheel and girder contact after the near beam bottom, can reach functions such as preventing screw touching girder and fixed distance detection.
Through wired connection's form, guarantee unmanned aerial vehicle's continuous power supply and no delay signal transmission to can in time feed back video signal to the remote control handle on for the inspector observe in real time, can reduce and control delay and can pinpoint when finding the problem, need not to adjust the position repeatedly because of control delay.
Drawings
Fig. 1 is a schematic structural diagram of a unmanned aerial vehicle system;
fig. 2 is a schematic structural view of a unmanned aerial vehicle body;
in the figure: 1-pier; 2-a bridge girder; 3-inspector; 4-a power supply; 5-a remote control handle; 6-connecting the cable; 7-unmanned plane body; 701-supporting feet; 702-a protective cover; 703-propeller; 704-a flexible support; 705-roller; 706-a detection camera.
Detailed Description
The utility model will now be described in detail with reference to the drawings and specific examples.
Example 1
An unmanned aerial vehicle system for inspecting defects of an overhead bridge bottom is shown in fig. 1 and 2 and comprises an unmanned aerial vehicle body 7, a connecting cable 6 and a control end assembly, wherein the unmanned aerial vehicle body 7 is electrically connected with the control end assembly through the connecting cable 6;
a detection camera 706 is arranged in the center of the unmanned aerial vehicle body 7;
the unmanned aerial vehicle body 7 on be connected with a plurality of propellers 703 through the wing arm, the outside cover of propeller 703 be equipped with the protection casing 702 of being connected to on the wing arm, protection casing 702 top center be connected with gyro wheel 705 through flexible support 704.
More specifically, in the present embodiment:
the unmanned aerial vehicle system in this embodiment is carried by inspector 3 and uses, specifically includes unmanned aerial vehicle organism 7, connecting cable 6 and control end subassembly. As shown in fig. 1, when the inspector 3 travels under the overhead to be inspected, the take-off unmanned aerial vehicle body 7 is close to the bridge girder 2 between the bridge pier 1; the connection cable 6 connected between the unmanned aerial vehicle body 7 and the control end assembly is automatically stretched to satisfy the flight distance of the unmanned aerial vehicle body 7.
As shown in fig. 2, the unmanned aerial vehicle body 7 is connected with a propeller 703 through a plurality of wing arms, and can adopt a commonly used structure such as four rotors, six rotors, eight rotors and the like. The outer side of the propeller 703 is covered with a protective cover 702, the protective cover 702 is connected to the wing arms, holes are formed in the upper and lower sides of the protective cover 702 for passing through air flow, and the force applied when the propeller 703 collides in the horizontal direction can be relieved through the protective cover 702, so that the structural safety of the propeller 703 is further protected; further, rollers 705 are connected to the top of the protective cover 702 through flexible supports 704, and when the flying height of the unmanned aerial vehicle body 7 is high, the rollers 705 first contact the bottom surface of the bridge girder 2, and the generated pressure is absorbed by the flexible supports 704. In addition, the heights of the rollers 705 correspondingly arranged on the propellers 703 are kept consistent, so that the unmanned aerial vehicle can realize detection of a fixed distance by means of the plane at the bottom of the bridge girder 2; the rollers 705 facilitate horizontal movement of the drone along the bridge girder 2. Preferably, the roller 705 is a universal wheel to assist the movement of the unmanned aerial vehicle in a horizontal plane; the flexible support 704 adopts a spring support, so that thrust generated during careless collision can be effectively absorbed, and damage to the unmanned aerial vehicle body 7 is reduced.
This unmanned aerial vehicle organism 7 is connected with supporting legs 701 in the bottom to install in central point put and detect camera 706, this detects camera 706 and installs in the central point put of unmanned aerial vehicle organism 7 through the cloud platform, provides vibration damping through mechanical or electron cloud platform and can effectively reduce the influence to the image shooting quality because of self vibration or bump with pier 1, bridge girder 2 and lead to shake.
The connection cable 6 connected with the unmanned aerial vehicle body 7 comprises a power supply cable and a signal transmission line, and the unmanned aerial vehicle body 7 can be powered by the control end assembly and can also perform wired data exchange.
The control end assembly comprises a power supply 4 and a remote control handle 5; the power supply 4 can adopt a knapsack battery or an outdoor mobile power supply, so that not only enough electric quantity can be provided, but also the unmanned aerial vehicle can be conveniently carried, and the power supply 4 continuously supplies power to the unmanned aerial vehicle body 7 through a power supply cable; the remote control handle 5 can adopt battery power supply, also can link to each other with power supply 4 and supply power, still integrate video signal output device on the remote control handle 5, like the display screen, remote control handle 5 accessible wired (signal transmission line) or wireless (bluetooth, network) mode carries out data transmission with unmanned aerial vehicle organism 7, except the flight operation of control unmanned aerial vehicle organism 7, can also be with the imaging frame real-time transmission who detects camera 706 to video signal output device for inspector 3 visual observation. The control of the remote control handle 5 is preferably wire transmission, so that the conditions of signal attenuation, signal delay, signal loss and the like can be avoided, the picture seen by the inspector 3 is ensured to be a real-time picture, and the rapid positioning can be realized when a problem is found; when the length of the connecting cable 6 is insufficient to reach the flying position of the unmanned aerial vehicle body 7, the connecting cable 6 on the unmanned aerial vehicle body 7 can be pulled out, power is supplied through a battery module arranged in the unmanned aerial vehicle body 7 and signals are transmitted between the communication module and the remote control handle 5. The unmanned aerial vehicle body 7 is built-in, such as battery module, communication module and unmanned aerial vehicle body 7 itself can directly adopt prior art's mechanism and connected mode, and this part does not belong to the improvement point of this application, does not make extra description. Still further, for adopting wired connection in the testing process as far as possible, avoid signal transmission problem, and for avoiding the interwinding between the connecting cables 6 and the normal removal of unnecessary connecting cables 6 influence inspector 3, can correspond to the automatic take-up reel that sets up in the control end subassembly and is used for controlling the automatic flexible of connecting cables 6, can directly select the product sold on the market of suitable specification equally, can adopt at this moment to link to the signal transmission line of remote control handle 5 inside power supply 4 and set up automatic take-up reel in power supply 4, and then avoid remote control handle 5 too big and cause the condition that is difficult to use.
The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present utility model. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present utility model is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present utility model.

Claims (10)

1. The unmanned aerial vehicle system for checking the diseases at the bottom of the overhead bridge is characterized by comprising an unmanned aerial vehicle body (7), a connecting cable (6) and a control end assembly, wherein the unmanned aerial vehicle body (7) is electrically connected with the control end assembly through the connecting cable (6);
a detection camera (706) is arranged at the center of the unmanned aerial vehicle body (7);
the unmanned aerial vehicle organism (7) on be connected with a plurality of propellers (703) through the wing arm, the outside cover of propeller (703) be equipped with and connect protection casing (702) on the wing arm, protection casing (702) top center be connected with gyro wheel (705) through flexible support piece (704).
2. An unmanned aerial vehicle system for inspecting diseases of an elevated bridge floor according to claim 1, wherein a plurality of support feet (701) are provided at the bottom of the unmanned aerial vehicle body (7).
3. The unmanned aerial vehicle system for detecting diseases of the bottom of an overhead bridge according to claim 1, wherein the detecting camera (706) is mounted on a cradle head, and the cradle head is mounted at the center of the unmanned aerial vehicle body (7).
4. An unmanned aerial vehicle system for inspecting an elevated bridge floor according to claim 1, wherein the rollers (705) are equi-high.
5. An unmanned aerial vehicle system for inspecting an elevated bridge floor according to claim 4, wherein the rollers (705) are universal wheels.
6. An unmanned aerial vehicle system for inspecting an elevated bridge floor for defects according to claim 1, wherein the flexible support (704) is a spring strut.
7. An unmanned aerial vehicle system for inspecting an elevated bridge floor for defects according to claim 1, wherein the connecting cable (6) comprises a power cable and a signal transmission line.
8. An unmanned aerial vehicle system for inspecting an elevated bridge floor for disease according to claim 7, wherein the control terminal assembly comprises a power source (4) and a remote control handle (5);
the power supply (4) is electrically connected with the unmanned aerial vehicle body (7) through a connecting cable (6);
the remote control handle (5) and the unmanned aerial vehicle body (7) are electrically connected through a connecting cable (6), or the remote control handle (5) and the unmanned aerial vehicle body (7) are in wireless connection.
9. An unmanned aerial vehicle system for inspecting the bottom of an overhead bridge according to claim 8, wherein the power supply (4) is a backpack cell or an outdoor mobile power supply.
10. An unmanned aerial vehicle system for inspecting an elevated bridge floor according to claim 8, wherein the remote control handle (5) is provided with a video signal output device.
CN202320605456.5U 2023-03-24 2023-03-24 Unmanned aerial vehicle system for checking diseases at bottom of overhead bridge Active CN219325934U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320605456.5U CN219325934U (en) 2023-03-24 2023-03-24 Unmanned aerial vehicle system for checking diseases at bottom of overhead bridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320605456.5U CN219325934U (en) 2023-03-24 2023-03-24 Unmanned aerial vehicle system for checking diseases at bottom of overhead bridge

Publications (1)

Publication Number Publication Date
CN219325934U true CN219325934U (en) 2023-07-11

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ID=87063730

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320605456.5U Active CN219325934U (en) 2023-03-24 2023-03-24 Unmanned aerial vehicle system for checking diseases at bottom of overhead bridge

Country Status (1)

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CN (1) CN219325934U (en)

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