Unmanned aerial vehicle applied to detecting defects at bottom of bridge

Abstract

The utility model discloses an unmanned aerial vehicle applied to detection of bridge bottom defects, relates to the field of bridge bottom defect detection, and solves the problems that the existing bridge bottom defect detection is not only to detect the outside of a bridge, but also to detect internal materials of the bridge, especially to some bridges with steel structures, and the detection cost is low. The defects such as cracks, hairlines, layering and local crumple are very easy to generate in the using process of a steel part along with accumulation of internal stress, and the defects are often more fatal compared with macroscopic defects outside the workpiece. The unmanned aerial vehicle is technically characterized by comprising an unmanned aerial vehicle body; the rotor wing structure is mounted on the unmanned aerial vehicle body, and the rotor wing structure is used for providing power; and the damping structure is installed below the unmanned aerial vehicle body, and the damping structure is used for damping. The material in the bottom of the bridge can be detected, the structure is relatively simple, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge bottom defect detection, in particular to a drone used for detecting bridge bottom defects. Background Art

[0002] A bridge is a structure built to cross natural or artificial obstacles. It is built on rivers, lakes, and seas to allow vehicles and pedestrians to pass smoothly. A bridge is generally composed of a superstructure, a substructure, and ancillary structures. The superstructure mainly refers to the span structure and support system; the substructure includes abutments, piers, and foundations; and the ancillary structures refer to the bridgehead slab, conical slope protection, revetment, diversion engineering, etc. Bridges are divided into four basic systems according to the structural system: beam bridges, arch bridges, rigid frame bridges, and cable-supported bridges (suspension bridges, cable-stayed bridges).

[0003] The existing bridge bottom defect detection not only inspects the outside of the bridge, but also needs to inspect the internal materials of the bridge, especially some steel structure bridges. As the internal stress accumulates during use, the steel parts themselves are very prone to cracks, hairlines, delamination, local collapse and other defects. These defects are often more fatal than the defects visible to the naked eye on the outside of the workpiece. Therefore, in order to solve this problem, it is very necessary to design a drone for detecting bridge bottom defects. Utility Model Content

[0004] The utility model aims to solve the technical problem that the existing bottom defect detection of bridges in the prior art is not only to detect the outside of the bridge, but also to detect the internal materials of the bridge, especially some steel structure bridges. The steel parts themselves are very prone to cracks, hairlines, delamination, local shrinkage and other defects as internal stress accumulates during use. These defects are often more fatal than the defects visible to the naked eye on the outside of the workpiece. The utility model provides a drone for detecting bottom defects of bridges.

[0005] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0006] A drone used for detecting defects at the bottom of a bridge, comprising:

[0007] UAV fuselage;

[0008] A rotor structure, wherein the rotor structure is mounted on the fuselage of the UAV and is used to provide power;

[0009] A shock absorbing structure, which is installed under the fuselage of the drone and is used for shock absorption;

[0010] A landing structure, wherein the landing structure is installed on the shock absorbing structure and is used for landing;

[0011] A distance measuring structure, which is installed on the UAV body and is used for distance measurement;

[0012] An observation structure, which is mounted on the drone body and is used for observation;

[0013] A fixing structure, which is installed on the lower surface of the UAV fuselage and is used for fixing;

[0014] The detection structure is installed on the fixed structure and is used for detection.

[0015] Preferably, the rotor structure comprises: two pairs of UAV rotors;

[0016] Two pairs of the UAV rotors are installed on the side surface of the UAV fuselage.

[0017] Preferably, the shock absorbing structure comprises: two pairs of first connecting plates, two pairs of telescopic rods, two pairs of shock absorbing springs and two pairs of second connecting plates;

[0018] Two pairs of the first connecting plates are installed on the lower surface of the drone fuselage, each telescopic rod is installed on the lower surface of the corresponding first connecting plate, each shock absorbing spring is sleeved on the corresponding telescopic rod, and each second connecting plate is installed on the corresponding telescopic rod.

[0019] Preferably, the landing structure comprises: a pair of landing gears;

[0020] Each landing gear is mounted on a corresponding pair of lower surfaces of the second connecting plates.

[0021] Preferably, the distance measuring structure comprises: two pairs of supporting and fixing blocks, two pairs of fixing support frames, two pairs of distance measuring instruments and two pairs of alarms;

[0022] Two pairs of the supporting and fixing blocks are installed on the side surface of the drone fuselage, each of the fixed support frames is installed on the corresponding supporting and fixing blocks, each of the rangefinders is installed on the corresponding fixed support frames, and each of the alarms is installed on the upper surface of the corresponding supporting and fixing blocks.

[0023] Preferably, the observation structure comprises: a pair of support plates, a first fixing frame, a first rotating motor, a bearing, a rotating round rod and an observation camera;

[0024] A pair of support plates are installed on the lower surface of the drone fuselage, the first fixing frame is installed on one of the support plates, the first rotating motor is installed on the first fixing frame, the bearing is installed on the other support plate, the rotating round rod is installed on the rotating end of the first rotating motor, and the rotating round rod is matched with the bearing, and the observation camera is installed on the rotating round rod.

[0025] Preferably, the fixing structure comprises: a second fixing frame, a second rotating motor, a rotating plate and a supporting fixing frame;

[0026] The second fixing frame is installed on the lower surface of the drone fuselage, the second rotating motor is installed on the second fixing frame, the rotating plate is installed on the rotating end of the second rotating motor, and the supporting fixing frame is installed on the lower surface of the rotating plate.

[0027] Preferably, the detection structure comprises: an ultrasonic detector;

[0028] The ultrasonic detector is installed on a supporting fixing frame.

[0029] Preferably, a battery is provided in the drone body, and a wireless controller is provided in the drone body.

[0030] The utility model has the following beneficial effects:

[0031] This drone used to detect defects at the bottom of a bridge can better detect defects at the bottom of the bridge. It is very convenient and reduces unnecessary trouble. It can observe and inspect the outside of the bottom of the bridge, as well as the materials inside the bottom of the bridge. It has a relatively simple structure and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] Figure 1 This is a schematic diagram of the structure of a drone used for detecting defects at the bottom of a bridge according to the utility model;

[0034] Figure 2 This is a main structural diagram of a drone used for detecting defects at the bottom of a bridge according to the utility model;

[0035] Figure 3 This is a front view of a drone used for detecting defects at the bottom of a bridge according to the utility model;

[0036] Figure 4 The utility model is a top view of a drone used for detecting defects at the bottom of a bridge.

[0037] The reference numerals in the figures indicate:

[0038] UAV fuselage 10, rotor structure 20, shock absorption structure 30, landing structure 40, ranging structure 50, observation structure 60, fixing structure 70, detection structure 80, battery 90, wireless controller 100;

[0039] UAV rotor 21;

[0040] A first connecting plate 31, a telescopic rod 32, a shock absorbing spring 33, and a second connecting plate 34;

[0041] Landing gear 41;

[0042] Supporting fixed block 51, fixed support frame 52, rangefinder 53, alarm 54;

[0043] Support plate 61, first fixing frame 62, first rotating motor 63, bearing 64, rotating rod 65, observation camera 66;

[0044] A second fixed frame 71, a second rotating motor 72, a rotating plate 73, and a supporting fixed frame 74;

[0045] Ultrasonic detector 81. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0047] See also Figure 1-4 A drone used for detecting bottom defects of a bridge comprises: a drone body 10, a rotor structure 20, the rotor structure 20 is installed on the drone body 10, and the rotor structure 20 is used to provide power, a shock absorbing structure 30, the shock absorbing structure 30 is installed under the drone body 10, and the shock absorbing structure 30 is used for shock absorption, a landing structure 40, the landing structure 40 is installed on the shock absorbing structure 30, and the landing structure 40 is used for landing, a ranging structure 50, the ranging structure 50 is installed on the drone body 10, and the ranging structure 50 is used for ranging, an observation structure 60, the observation structure 60 is installed on the drone body 10, and the observation structure 60 is used for observation, a fixing structure 70, the fixing structure 70 is installed on the lower surface of the drone body 10, and the fixing structure 70 is used for fixing, and a detection structure 80, the detection structure 80 is installed on the fixing structure 70, and the detection structure 80 is used for detection.

[0048] The rotor structure 20 includes two pairs of UAV rotors 21 , and the two pairs of UAV rotors 21 are installed on the side surface of the UAV fuselage 10 .

[0049] The shock absorbing structure 30 includes: two pairs of first connecting plates 31, two pairs of telescopic rods 32, two pairs of shock absorbing springs 33 and two pairs of second connecting plates 34. The two pairs of first connecting plates 31 are installed on the lower surface of the drone fuselage 10, each telescopic rod 32 is installed on the lower surface of the corresponding first connecting plate 31, each shock absorbing spring 33 is sleeved on the corresponding telescopic rod 32, and each second connecting plate 34 is installed on the corresponding telescopic rod 32.

[0050] The landing structure 40 includes: a pair of landing gears 41 , each landing gear 41 is mounted on the lower surface of a corresponding pair of second connecting plates 34 .

[0051] The ranging structure 50 includes: two pairs of supporting and fixing blocks 51, two pairs of fixed support frames 52, two pairs of rangefinders 53 and two pairs of alarms 54. The two pairs of supporting and fixing blocks 51 are installed on the side surface of the drone fuselage 10, each fixed support frame 52 is installed on the corresponding supporting and fixing block 51, each rangefinder 53 is installed on the corresponding fixed support frame 52, and each alarm 54 is installed on the upper surface of the corresponding supporting and fixing block 51.

[0052] The observation structure 60 includes: a pair of support plates 61, a first fixed frame 62, a first rotating motor 63, a bearing 64, a rotating rod 65 and an observation camera 66. The pair of support plates 61 are installed on the lower surface of the drone fuselage 10, the first fixed frame 62 is installed on one of the support plates 61, the first rotating motor 63 is installed on the first fixed frame 62, the bearing 64 is installed on the other support plate 61, the rotating rod 65 is installed on the rotating end of the first rotating motor 63, and the rotating rod 65 matches the bearing 64, and the observation camera 66 is installed on the rotating rod 65.

[0053] The fixed structure 70 includes: a second fixed frame 71, a second rotating motor 72, a rotating plate 73 and a supporting fixed frame 74. The second fixed frame 71 is installed on the lower surface of the drone fuselage 10, the second rotating motor 72 is installed on the second fixed frame 71, the rotating plate 73 is installed on the rotating end of the second rotating motor 72, and the supporting fixed frame 74 is installed on the lower surface of the rotating plate 73.

[0054] The detection structure 80 includes an ultrasonic detector 81 , which is installed on the supporting frame 74 .

[0055] A battery 90 is disposed in the drone body 10 , and a wireless controller 100 is disposed in the drone body 10 .

[0056] Working principle:

[0057] The rotor structure 20 on the drone body 10 is used to provide power, the shock absorbing structure 30 under the drone body 10 is used for shock absorption, the landing structure 40 on the shock absorbing structure 30 is used for landing, the distance measuring structure 50 on the drone body 10 is used for distance measurement, the observation structure 60 on the drone body 10 is used for observation, the fixing structure 70 on the lower surface of the drone body 10 is used for fixing, and the detection structure 80 on the fixing structure 70 is used for detection. First, the wireless controller 100 in the drone body 10 is turned on by the remote controller, and the storage device 10 in the drone body 10 is turned on. The battery 90 is used for power supply, the drone takes off through the rotor 21, and takes off and lands through the landing gear 41. When taking off and landing, the shock-absorbing spring 33 on the telescopic rod 32 is used for shock absorption. When flying, the rangefinder 53 on the fixed support frame 52 is used to measure the surroundings to prevent crashing due to being too close. When the distance is too close, the alarm 54 on the supporting fixed block 51 will sound an alarm, and the observation camera 66 on the rotating round rod 65 is used to observe and detect the outside, and the ultrasonic detector 81 on the supporting fixed frame 74 is used to detect the inside, which is very convenient.

[0058] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A drone used to detect defects at the bottom of a bridge, characterized in that: include: UAV fuselage (10); A rotor structure (20), the rotor structure (20) being mounted on the UAV fuselage (10), the rotor structure (20) being used to provide power; A shock absorbing structure (30), the shock absorbing structure (30) being installed under the drone fuselage (10), and the shock absorbing structure (30) being used for shock absorption; A lifting and landing structure (40), wherein the lifting and landing structure (40) is installed on the shock absorbing structure (30), and the lifting and landing structure (40) is used for lifting and landing; A distance measuring structure (50), the distance measuring structure (50) being mounted on the drone fuselage (10), and the distance measuring structure (50) being used for distance measuring; An observation structure (60), the observation structure (60) being mounted on the drone fuselage (10), and the observation structure (60) being used for observation; A fixing structure (70), the fixing structure (70) being mounted on the lower surface of the drone fuselage (10), and the fixing structure (70) being used for fixing; A detection structure (80), wherein the detection structure (80) is installed on the fixed structure (70), and the detection structure (80) is used for detection.

2. The drone used for detecting bridge bottom defects according to claim 1, characterized in that: The rotor structure (20) comprises: two pairs of UAV rotors (21); The two pairs of UAV rotors (21) are mounted on the side surface of the UAV fuselage (10).

3. The drone used for detecting bridge bottom defects according to claim 1, characterized in that: The shock absorbing structure (30) comprises: two pairs of first connecting plates (31), two pairs of telescopic rods (32), two pairs of shock absorbing springs (33) and two pairs of second connecting plates (34); Two pairs of the first connecting plates (31) are mounted on the lower surface of the drone body (10), each of the telescopic rods (32) is mounted on the lower surface of the corresponding first connecting plate (31), each of the shock absorbing springs (33) is sleeved on the corresponding telescopic rod (32), and each of the second connecting plates (34) is mounted on the corresponding telescopic rod (32).

4. The drone used for detecting bridge bottom defects according to claim 3 is characterized in that: The landing structure (40) comprises: a pair of landing gears (41); Each landing gear (41) is mounted on the lower surface of a corresponding pair of the second connecting plates (34).

5. The drone used for detecting bridge bottom defects according to claim 1, characterized in that: The distance measuring structure (50) comprises: two pairs of supporting and fixing blocks (51), two pairs of fixing support frames (52), two pairs of distance measuring instruments (53) and two pairs of alarms (54); Two pairs of the supporting and fixing blocks (51) are mounted on the side surface of the drone fuselage (10), each of the fixed support frames (52) is mounted on a corresponding supporting and fixing block (51), each of the rangefinders (53) is mounted on a corresponding fixed support frame (52), and each of the alarms (54) is mounted on the upper surface of a corresponding supporting and fixing block (51).

6. The drone used for detecting bridge bottom defects according to claim 1, characterized in that: The observation structure (60) comprises: a pair of support plates (61), a first fixing frame (62), a first rotating motor (63), a bearing (64), a rotating round rod (65) and an observation camera (66); A pair of support plates (61) are mounted on the lower surface of the drone fuselage (10), the first fixing frame (62) is mounted on one of the support plates (61), the first rotating motor (63) is mounted on the first fixing frame (62), the bearing (64) is mounted on the other support plate (61), the rotating rod (65) is mounted on the rotating end of the first rotating motor (63), and the rotating rod (65) matches the bearing (64), and the observation camera (66) is mounted on the rotating rod (65).

7. The drone used for detecting bridge bottom defects according to claim 1, characterized in that: The fixing structure (70) comprises: a second fixing frame (71), a second rotating motor (72), a rotating plate (73) and a supporting fixing frame (74); The second fixing frame (71) is mounted on the lower surface of the drone body (10), the second rotating motor (72) is mounted on the second fixing frame (71), the rotating plate (73) is mounted on the rotating end of the second rotating motor (72), and the supporting fixing frame (74) is mounted on the lower surface of the rotating plate (73).

8. The drone used for detecting bridge bottom defects according to claim 1, characterized in that: The detection structure (80) comprises: an ultrasonic detector (81); The ultrasonic detector (81) is installed on the supporting fixing frame (74).

9. The drone used for detecting bridge bottom defects according to claim 1, characterized in that: A storage battery (90) is provided in the drone body (10), and a wireless controller (100) is provided in the drone body (10).

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