An unmanned aerial vehicle for bridge inspection and mapping

Abstract

The utility model discloses a kind of unmanned aerial vehicles for bridge patrol surveying and mapping engineering, including surveying and mapping unmanned aerial vehicle, surveying and mapping unmanned aerial vehicle bottom end is provided with two groups T type slide rail, two groups T type slide rail are slidably provided with T type plate, two groups T type plate bottom end is provided with roof, the roof bottom end is provided with mounting seat, the mounting seat bottom end is provided with camera, two groups T type slide rail outer end front side and rear side are provided with mounting block, four groups The inner end of mounting block is provided with sliding slot, the front side and rear side of two groups T type slide rail outer end are provided with through slot, four groups One end of spring is connected with four groups sliding rod, four groups The other end of spring is connected with four groups sliding slot, the bottom end of four groups surveying and mapping unmanned aerial vehicle corner is provided with support, four groups The bottom end of support is slidably provided with support leg, it is convenient to install and dismount camera, without using tool, operation is relatively simple.

Description

Technical Field

[0001] This utility model relates to the field of bridge inspection and mapping engineering technology, and more specifically, it relates to a drone used for bridge inspection and mapping engineering. Background Technology

[0002] Bridge inspection and mapping engineering refers to the technical activities of comprehensively assessing the geometry, structural condition, material properties, and surrounding environment of bridges through systematic inspection, high-precision measurement, structural testing, and data modeling. Its core objectives are: ensuring safe bridge operation; identifying potential defects; providing a basis for maintenance decisions; and establishing digital archives. With the number of bridges in my country exceeding one million (as of 2023), problems such as bridge aging, overloading, and environmental corrosion are becoming increasingly prominent, making inspection and mapping a crucial link in the intelligent management of transportation infrastructure.

[0003] In modern bridge inspection and mapping engineering, drones have become an indispensable, efficient, safe, and precise operating platform. They overcome the limitations of traditional manual inspections, enabling the rapid acquisition of high-resolution data on hard-to-reach areas such as the top, sides, bottom, towers, and cables of bridges, significantly improving inspection efficiency and safety.

[0004] The camera on the bottom of a drone is usually supported by a mounting bracket, and then multiple bolts are used to connect and fix the mounting bracket to the drone body to install and use the camera. After the drone has finished its inspection and mapping, the camera usually needs to be removed. This requires the use of tools to remove the bolts one by one. After repeatedly turning the bolts, the holes on the mounting bracket will be damaged, resulting in loose bolt fit and affecting the installation stability of the camera. In addition, most drones lack a cushioning and protective structure on the bottom, so when the drone lands, it is easy to collide with the ground and cause damage. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the problems existing in the prior art, this utility model provides a drone for bridge inspection and mapping projects, which solves the technical problem mentioned in the background art that requires tools to disassemble bolts one by one. This method, after rotating the bolts multiple times, will damage the holes on the mounting bracket, resulting in loose bolt fit and affecting the installation stability of the camera.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A drone for bridge inspection and mapping includes a surveying drone. The surveying drone has two sets of T-shaped slide rails at its bottom. T-shaped plates are slidably mounted on each of the two sets of T-shaped slide rails. Top plates are located at the bottom of the two sets of T-shaped plates, and mounting seats are located at the bottom of the top plates. Cameras are mounted at the bottom of the mounting seats. Mounting blocks are located on the front and rear sides of the outer ends of the two sets of T-shaped slide rails. Sliding grooves are located on the inner ends of the four sets of mounting blocks. Through grooves are located on the front and rear sides of the outer ends of the two sets of T-shaped slide rails. The groove is connected to the four sets of sliding grooves. Each of the four sets of sliding grooves has a sliding rod slidably installed inside. Each of the four sets of sliding rods has a locking block at its inner end. Each of the two sets of T-shaped plates has a locking groove on its front and rear sides. Each of the four sets of locking blocks is engaged with the locking grooves. Each of the four sets of sliding rods has a spring. One end of each of the four sets of springs is connected to the four sets of sliding rods, and the other end of each of the four sets of springs is connected to the four sets of sliding grooves. Each of the four corners of the bottom of the surveying UAV has a support rod, and each of the four sets of support rods has a slidably installed support leg at its bottom.

[0010] The present invention is further configured such that each of the four sets of support rods has a sliding groove at its bottom end, the four sets of support legs slide within the four sets of sliding grooves, each of the four sets of sliding grooves has a first rod at its top end, each of the four sets of first rods has a telescopic groove at its bottom end, each of the four sets of telescopic grooves has a second rod sliding within it, the four sets of second rods are respectively installed at the top ends of the four sets of support legs, and each of the four sets of second rods has a buffer spring on its outer side. When the surveying drone descends, the four sets of support legs first contact the ground, and then the four sets of support legs slide within the four sets of support rods. The four sets of first rods, the four sets of second rods, and the four sets of buffer springs buffer the four sets of support legs, thereby buffering the surveying drone and providing cushioning protection during its descent.

[0011] The present invention is further configured such that a cylinder is provided at the bottom end of the top plate, and the output end of the cylinder is connected to the mounting base. When it is necessary to use the camera for inspection and mapping, the cylinder is opened, and the cylinder drives the camera to move downward below the four sets of outriggers, so that the cylinder can inspect and map the bridge. When the inspection and mapping is completed and the surveying drone descends, the cylinder is opened in the opposite direction, and the cylinder drives the camera to move upward to a safe height, so as to facilitate the adjustment of the camera's height. This not only ensures the surveying effect of the camera, but also allows it to be retracted for protection.

[0012] The present invention is further configured such that a connecting block is provided at the output end of the cylinder, a screw is provided at the top of the mounting base, and an internal thread groove is provided at the bottom end of the connecting block. The screw is threadedly connected to the internal thread groove. When it is necessary to disassemble the camera on the cylinder, simply rotate the mounting base to separate the screw on the mounting base from the connecting block, thereby disassembling the camera and facilitating the removal of the camera from the cylinder.

[0013] The present invention is further configured such that each of the four sets of card blocks has a pin at its inner end, and each of the four sets of card slots on the two sets of T-shaped plates has a pin hole connected to it. The four sets of pins are located in the four sets of pin holes. The front and rear sides of the inner ends of the two sets of T-shaped slide rails are provided with through holes, and the four sets of pins are located in the four sets of through holes. By setting the pins, the fixing effect of the T-shaped plates can be further improved.

[0014] The present invention is further configured such that each of the four sets of support legs is rotatably provided with a connecting seat at its bottom end, and the bottom ends of the two sets of connecting seats on the left and the two sets of connecting seats on the right are provided with a base plate. By providing the connecting seats and base plates, it can adapt to uneven ground and maintain stable contact.

[0015] The present invention is further configured such that the outer ends of the two sets of sliding rods on the left and the two sets of sliding rods on the right are all provided with connecting rods. By providing connecting rods, pulling the two sets of connecting rods outward can drive the four sets of sliding rods to slide outward simultaneously, which is more convenient to disassemble and improves convenience.

[0016] Beneficial effects

[0017] Compared with the prior art, this utility model provides a drone for bridge inspection and mapping engineering, which has the following beneficial effects:

[0018] 1. T-shaped plates are slidably mounted on both sets of T-shaped slide rails. Top plates are located at the bottom of both sets of T-shaped plates. Mounting seats are located at the bottom of the top plates. Cameras are mounted at the bottom of the mounting seats. Sliding grooves are provided inside the inner ends of all four sets of mounting blocks. Through grooves communicate with the four sets of sliding grooves. Sliding rods are slidably mounted within each of the four sets of sliding grooves. Locking blocks are located at the inner ends of each of the four sets of sliding rods. These locking blocks engage with the locking grooves in their respective sets. Springs are provided on each of the four sets of sliding rods. One end of the spring is connected to the four sets of sliding rods, and the other end of the four sets of springs is connected to the four sets of sliding grooves. Each of the four sets of support rods has a slidable support leg at its bottom. When the camera needs to be removed, the four sets of sliding rods are driven to slide outward, which in turn causes the four sets of locking blocks to separate from the four sets of locking grooves on the two sets of T-shaped plates. Then, the two sets of T-shaped plates slide forward on the two sets of T-shaped slide rails, thereby removing the top plate and the camera. This facilitates the installation and removal of the camera without the need for tools, making the operation simple.

[0019] 2. The four sets of outriggers slide within the four sets of sliding grooves. Each of the four sets of sliding grooves has a first rod at its top and a telescopic groove at its bottom. Each of the four sets of telescopic grooves has a second rod sliding within it. The four sets of second rods are respectively installed on the top of the four sets of outriggers. Each of the four sets of second rods has a buffer spring on its outer side. When the surveying drone descends, the four sets of outriggers first contact the ground and then slide within the four sets of outriggers. The four sets of first rods, four sets of second rods, and four sets of buffer springs buffer the four sets of outriggers, thereby buffering the surveying drone and providing cushioning protection during its descent.

[0020] 3. A cylinder is provided at the bottom of the top plate. The output end of the cylinder is connected to the mounting base. When the camera is needed for inspection and mapping, the cylinder is opened, which drives the camera to move downward below the four sets of outriggers, so that the cylinder can inspect and map the bridge. When the inspection and mapping is completed and the surveying drone descends, the cylinder is opened in the opposite direction, which drives the camera to move upward to a safe height, so as to facilitate the adjustment of the camera's height. This not only ensures the surveying effect of the camera, but also allows it to be retracted for protection. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a drone used for bridge inspection and mapping engineering according to this utility model. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the overall structure of a drone used for bridge inspection and mapping engineering according to this utility model. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the connection structure between the top plate, the cylinder, and the connecting block in this utility model;

[0024] Figure 4 This is a schematic diagram of the connection structure between the slide bar, the locking block, and the pin in this utility model;

[0025] Figure 5 This is a schematic diagram of the connection structure between the first rod, the second rod, and the buffer spring in this utility model.

[0026] In the diagram: 1. Surveying UAV; 2. T-shaped slide rail; 3. T-shaped plate; 4. Top plate; 5. Mounting base; 6. Camera; 7. Mounting block; 8. Slide rod; 9. Locking block; 10. Spring; 11. Support rod; 12. Support leg; 13. First rod; 14. Second rod; 15. Buffer spring; 16. Cylinder; 17. Connecting block; 18. Screw; 19. Pin; 20. Connecting base; 21. Base plate; 22. Connecting rod. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figure 1-5 A drone for bridge inspection and mapping includes a surveying drone 1. The bottom of the surveying drone 1 is equipped with two sets of T-shaped slide rails 2. T-shaped plates 3 are slidably mounted on each set of T-shaped slide rails 2. Top plates 4 are located at the bottom of the two sets of T-shaped plates 3. Mounting seats 5 are located at the bottom of the top plates 4. Cameras 6 are located at the bottom of the mounting seats 5. Mounting blocks 7 are located on the front and rear sides of the outer ends of the two sets of T-shaped slide rails 2. Slide grooves are located on the inner ends of the four sets of mounting blocks 7. Through grooves are located on the front and rear sides of the outer ends of the two sets of T-shaped slide rails 2. The four sets of through grooves communicate with the four sets of slide grooves. Each of the four sets of sliding rods 8 is slidably provided with a sliding rod 8. Each of the four sets of sliding rods 8 has a locking block 9 at its inner end. Each of the two sets of T-shaped plates 3 has a locking groove on its front and rear sides. Each of the four sets of locking blocks 9 is engaged with the four sets of locking grooves. Each of the four sets of sliding rods 8 is provided with a spring 10. One end of each of the four sets of springs 10 is connected to the four sets of sliding rods 8, and the other end of each of the four sets of springs 10 is connected to the four sets of sliding grooves. Each of the four corners of the bottom end of the surveying UAV 1 is provided with a support rod 11. Each of the four sets of support rods 11 has a slidably provided support leg 12 at its bottom end. Each of the two sets of sliding rods 8 on the left and the two sets of sliding rods 8 on the right is provided with a connecting rod 22.

[0031] In this embodiment, when the camera 6 needs to be removed, the four sets of sliding rods 8 are driven to slide outward. The four sets of sliding rods 8 then drive the four sets of locking blocks 9 to separate from the four sets of locking slots on the two sets of T-shaped plates 3. Then, the two sets of T-shaped plates 3 slide forward on the two sets of T-shaped slide rails 2, thereby removing the top plate 4 and the camera 6. This makes it easy to install and remove the camera 6 without the need for tools, and the operation is relatively simple. By setting the connecting rod 22, pulling the two sets of connecting rods 22 outward can drive the four sets of sliding rods 8 to slide outward at the same time, making disassembly easier and improving convenience.

[0032] Please see Figure 1 , Figure 2 and Figure 5 As one embodiment of the surveying drone 1, in this utility model, the bottom ends of the four sets of support rods 11 are all provided with sliding grooves, the four sets of support legs 12 slide within the four sets of sliding grooves, the top ends of the four sets of sliding grooves are all provided with first rods 13, the bottom ends of the four sets of first rods 13 are all provided with telescopic grooves, the four sets of telescopic grooves are all slidably provided with second rods 14, the four sets of second rods 14 are respectively installed on the top ends of the four sets of support legs 12, the outer sides of the four sets of second rods 14 are all provided with buffer springs 15, the bottom ends of the four sets of support legs 12 are all rotatably provided with connecting seats 20, and the bottom ends of the two sets of connecting seats 20 on the left and the two sets of connecting seats 20 on the right are all provided with base plates 21;

[0033] Specifically, when the surveying drone 1 descends, the four sets of outriggers 12 first make contact with the ground, and then slide within the four sets of support rods 11. The four sets of first rods 13, the four sets of second rods 14, and the four sets of buffer springs 15 buffer the four sets of outriggers 12, thereby buffering the surveying drone 1. This can provide buffer protection when the surveying drone 1 descends. By setting the connecting seat 20 and the base plate 21, it can adapt to uneven ground and maintain stable contact.

[0034] Please see Figures 1-3 As one embodiment of the top plate 4, the bottom end of the top plate 4 in this utility model is provided with a cylinder 16, and the output end of the cylinder 16 is connected to the mounting base 5.

[0035] Specifically, when camera 6 is needed for inspection and mapping, cylinder 16 is opened, which drives camera 6 to move downward below the four sets of outriggers 12, so that cylinder 16 can inspect and map the bridge. When the inspection and mapping is completed and the surveying drone 1 descends, cylinder 16 is opened in the opposite direction, which drives camera 6 to move upward to a safe height, so as to facilitate the adjustment of the height of camera 6. This not only ensures the mapping effect of camera 6, but also allows it to be retracted for protection.

[0036] Please refer to Figures 1-3 As a further embodiment of cylinder 16: a connecting block 17 is provided at the output end of cylinder 16, a screw 18 is provided at the top of the mounting base 5, an internal thread groove is provided at the bottom of the connecting block 17, and the screw 18 is threadedly connected to the internal thread groove.

[0037] Specifically, when it is necessary to disassemble the camera 6 on the cylinder 16, simply rotate the mounting base 5 to separate the screw 18 on the mounting base 5 from the connecting block 17, thereby disassembling the camera 6 and making it easy to remove the camera 6 from the cylinder 16.

[0038] In this invention, each of the four sets of locking blocks 9 has a pin 19 at its inner end, and each of the four sets of locking slots on the two sets of T-shaped plates 3 has a pin hole connected to it. The four sets of pins 19 are located in the four sets of pin holes. The front and rear sides of the inner ends of the two sets of T-shaped slide rails 2 are provided with through holes, and the four sets of pins 19 are located in the four sets of through holes. By setting the pins 19, the fixing effect of the T-shaped plates 3 can be further improved.

[0039] In summary, when using the overall equipment:

[0040] When it is necessary to remove the camera 6, the four sets of sliding rods 8 are driven to slide outward through the two sets of connecting rods 22. The four sets of sliding rods 8 then drive the four sets of locking blocks 9 to separate from the four sets of locking slots on the two sets of T-shaped plates 3. Then, the two sets of T-shaped plates 3 slide forward on the two sets of T-shaped slide rails 2, thereby removing the top plate 4 and removing the camera 6.

[0041] When the surveying drone 1 descends, the four sets of outriggers 12 first make contact with the ground, and then slide within the four sets of support rods 11. The four sets of first rods 13, the four sets of second rods 14 and the four sets of buffer springs 15 cushion the four sets of outriggers 12, thereby cushioning the surveying drone 1.

[0042] When camera 6 is needed for inspection and mapping, cylinder 16 is opened, which drives camera 6 to move downward below the four outriggers 12, so that cylinder 16 can inspect and map the bridge. When the inspection and mapping is completed and the surveying drone 1 descends, cylinder 16 is opened in the opposite direction, which drives camera 6 to move upward to a safe height.

[0043] When it is necessary to remove the camera 6 from the cylinder 16, simply rotate the mounting base 5 to disengage the screw 18 on the mounting base 5 from the connecting block 17, thereby removing the camera 6.

[0044] In all the solutions mentioned above, the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

[0045] In all the solutions mentioned above, the operation of electrical components is controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies. Therefore, their electrical connection relationships and specific circuit structures will not be elaborated here.

Claims

1. A drone for bridge inspection and mapping engineering, including a mapping drone (1), characterized in that: The bottom of the surveying drone (1) is provided with two sets of T-shaped slide rails (2), and T-shaped plates (3) are slidably mounted on both sets of T-shaped slide rails (2). The bottom of the two sets of T-shaped plates (3) is provided with a top plate (4), and the bottom of the top plate (4) is provided with a mounting base (5). The bottom of the mounting base (5) is provided with a camera (6). The front and rear sides of the outer ends of the two sets of T-shaped slide rails (2) are provided with mounting blocks (7), and the inner ends of the four sets of mounting blocks (7) are provided with sliding grooves. The front and rear sides of the outer ends of the two sets of T-shaped slide rails (2) are provided with through grooves. The four sets of through grooves are connected to the four sets of sliding grooves. Each of the four sets of sliding rods (8) is slidably arranged in the sliding groove. Each of the four sets of sliding rods (8) is provided with a locking block (9) at its inner end. Each of the two sets of T-shaped plates (3) is provided with a locking groove on its front and rear sides. Each of the four sets of locking blocks (9) is engaged with the four sets of locking grooves. Each of the four sets of sliding rods (8) is provided with a spring (10). One end of each of the four sets of springs (10) is connected to the four sets of sliding rods (8), and the other end of each of the four sets of springs (10) is connected to the four sets of sliding grooves. Each of the four corners of the bottom end of the surveying drone (1) is provided with a support rod (11), and each of the four sets of support rods (11) is slidably provided with a support leg (12).

2. The UAV for bridge inspection and mapping engineering according to claim 1, characterized in that: four groups Each of the support rods (11) has a sliding groove at its bottom end. The four sets of support legs (12) slide within the four sets of sliding grooves. Each of the four sets of sliding grooves has a first rod (13) at its top end. Each of the four sets of first rods (13) has a telescopic groove at its bottom end. Each of the four sets of telescopic grooves has a second rod (14) slidingly installed within it. Each of the four sets of second rods (14) is installed at the top end of each of the four sets of support legs (12). Each of the four sets of second rods (14) has a buffer spring (15) on its outer side.

3. The UAV for bridge inspection and mapping engineering according to claim 1, characterized in that: A cylinder (16) is provided at the bottom end of the top plate (4), and the output end of the cylinder (16) is connected to the mounting base (5).

4. The UAV for bridge inspection and mapping engineering according to claim 3, characterized in that: The cylinder (16) output end is provided with a connecting block (17), the top end of the mounting base (5) is provided with a screw (18), the bottom end of the connecting block (17) is provided with an internal thread groove, and the screw (18) is threadedly connected to the internal thread groove.

5. A UAV for bridge inspection and mapping engineering according to claim 1, characterized in that: four groups The inner end of each of the card blocks (9) is provided with a pin (19), and the four sets of card slots on the two sets of T-shaped plates (3) are all connected with pin holes. The four sets of pins (19) are in the four sets of pin holes. The front and rear sides of the inner ends of the two sets of T-shaped slide rails (2) are provided with through holes. The four sets of pins (19) are in the four sets of through holes.

6. A drone for bridge inspection and mapping engineering according to claim 2, characterized in that: four groups Each of the legs (12) is rotatably provided with a connecting seat (20) at its bottom end. The bottom ends of the two sets of connecting seats (20) on the left and the two sets of connecting seats (20) on the right are provided with a base plate (21).

7. The UAV for bridge inspection and mapping engineering according to claim 1, characterized in that: Connecting rods (22) are provided at the outer ends of the two sets of sliding rods (8) on the left and the two sets of sliding rods (8) on the right.

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