Unmanned aerial vehicle frame for bridge detection

Abstract

The utility model discloses an unmanned aerial vehicle frame for bridge detection, which comprises an unmanned aerial vehicle body, a camera shooting moving mechanism, an underframe clamping mechanism and a clamping auxiliary mechanism, and the camera shooting moving mechanism comprises a rotating motor, a transverse moving platform, a lead screw, a guide rod, a guide sleeve, a threaded block and a rotating box. The bottom frame clamping mechanism comprises a clamping pipe, a clamping rod, an extending groove, a rotating groove, a rotating block, a tension spring, a transverse locking rod and a locking groove, the clamping auxiliary mechanism comprises a fixing block, a winding rod, a winding spring, a rotating block, an upper jacking block, a jacked block, a threaded locking ring, a longitudinal moving sleeve and an inner pushing groove, and accurate transverse movement of the camera shooting assembly is achieved through cooperation of a rotating motor, a lead screw and a threaded block. The stability of the camera shooting assembly in the moving process is ensured through matched sliding guiding of a guide rod and a guide sleeve, rapid connection of the unmanned aerial vehicle body and the bottom frame system is achieved through the design of a clamping rod and a clamping pipe, and the connecting stability is ensured through movement and sliding of a rotating block in a stretching-in groove and a rotating groove.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, and more specifically, it relates to a drone frame for bridge inspection. Background Technique

[0002] A drone frame for bridge inspection is a structural framework of a drone specifically designed for bridge inspection tasks. This frame combines drone technology and bridge inspection requirements, providing an efficient and safe solution for bridge safety inspections.

[0003] In the existing technology, firstly, some devices cannot flexibly adjust the position of the camera component, resulting in a limited detection range. It may not be possible to comprehensively inspect the bridge structure. The fixed camera position may lead to poor image quality at certain angles, affecting the accuracy of the detection results. The inability to quickly adjust the camera angle and position increases the detection time and reduces work efficiency. Secondly, some devices cannot quickly and firmly connect the drone body to the chassis, which may cause unstable flight. Loose connections may lead to equipment detachment during the detection process, posing a safety hazard and may require a more complex installation process, increasing the operation difficulty. Finally, some devices cannot further strengthen the fixation of the clamping rod, which may lead to loose connections and make it difficult to finely adjust the clamping strength. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the problems existing in the prior art, the utility model provides a drone frame for bridge inspection to solve the technical problems mentioned in the background technique, such as the inability to flexibly adjust the position of the camera component and the inability to quickly and firmly connect the drone body to the chassis.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the present utility model provides the following technical solutions: An unmanned aerial vehicle (UAV) frame for bridge inspection, comprising a UAV body, a camera moving mechanism, a chassis clamping mechanism, and a clamping auxiliary mechanism. The camera moving mechanism includes a rotating motor, a transverse moving platform, a lead screw, a guide rod, a guide sleeve, a threaded block, and a rotating box. The rotating motor is installed at one end of the transverse moving platform. One end of the lead screw is rotatably arranged on the transverse moving platform, and the other end of the lead screw is in mating connection with the rotating motor. The threaded block is installed on the lead screw, and the rotating box is in mating connection with the threaded block. The guide sleeve on the rotating box is in sliding guiding cooperation with the guide rod of the transverse moving platform. The chassis clamping mechanism includes a clamping pipe, a clamping rod, a inserting groove, a rotating groove, a rotating block, a tension spring, a transverse locking rod, and a locking groove. The inserting groove is arranged on the inner wall of the clamping pipe. The rotating groove is arranged at the top end of the inner wall of the clamping pipe. The rotating block is arranged on the clamping rod. The rotating block longitudinally moves in the inserting groove and rotates and slides in the rotating groove. The locking groove is arranged on the clamping rod. The transverse locking rod movably extends into the side wall of the clamping pipe. The tension spring is arranged on the outer wall of the clamping pipe and one end of the transverse locking rod.

[0008] The present utility model is further arranged such that the clamping auxiliary mechanism includes a fixed block, a winding rod, a winding spring, a rotating block, an upper top block, a receiving top block, a threaded locking ring, a longitudinal moving sleeve, and an inner pushing groove. The fixed block is fixedly installed on the outer wall of the clamping pipe. One end of the winding rod and the winding spring are in mating connection with the fixed block. The rotating block rotates and slides on the winding rod, and one end of the winding spring is in mating connection with one end of the rotating block. The upper top block is installed on the top of the rotating block. The receiving top block is installed on the bottom of the longitudinal moving sleeve. The threaded locking ring rotates threadedly on the clamping pipe, pushing the rotating block to rotate. The upper top block then pushes the receiving top block to move the longitudinal moving sleeve on the outer wall of the clamping pipe, so that the inner pushing groove on the inner wall of the longitudinal moving sleeve pushes the transverse locking rod, and one end of the transverse locking rod extends into the locking groove to fix the clamping rod again.

[0009] The present utility model is further arranged such that mounting plates are installed at both ends of the transverse moving platform. A connecting plate is installed at the bottom end of the side wall of the clamping pipe, and the connecting plate is fixedly installed on the top end surface of the mounting plate. The setting of the mounting plate realizes the fixed installation of the clamping pipe.

[0010] The present utility model is further arranged such that one end of the clamping rod is in limit rotational connection with the bottom end of the UAV body in a mating manner, and the other end of the clamping rod extends through the mounting plate and is in quick clamping connection with the clamping pipe in a mating manner, realizing the quick connection between the chassis system and the UAV body.

[0011] The present utility model is further arranged such that a rotating motor is installed in the rotating box, and a rotating rod is installed at the output end of the rotating motor. The setting of the rotating motor provides power to drive the rotating rod to rotate.

[0012] The present utility model is further arranged such that a mounting bracket is installed at one end of the rotating rod, and a camera assembly is installed on the mounting bracket. The mounting bracket supports the camera assembly and allows it to be installed on the frame.

[0013] The utility model is further arranged such that a fixing plate is fixedly provided on the side wall of the clamping pipe, and a return spring is installed between the bottom of the fixing plate and the top of the longitudinal moving sleeve. The setting of the return spring facilitates the moving reset of the longitudinal moving sleeve.

[0014] The utility model is further arranged such that support frames are symmetrically installed on both sides of the transverse moving platform. The setting of the support frames provides support for the entire device and increases stability.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a drone frame for bridge detection, which has the following beneficial effects:

[0017] The utility model is provided with a camera moving mechanism. Through the cooperation of the rotating motor, the lead screw and the threaded block, the precise lateral movement of the camera assembly is realized. The sliding guidance of the guide rod and the guide sleeve ensures the stability of the camera assembly during the movement. The design of the rotating motor and the rotating rod in the rotating box enables the camera assembly to perform multi-angle shooting. The automated moving and rotating mechanisms greatly improve the efficiency of bridge detection.

[0018] The utility model is provided with a chassis clamping mechanism. The design of the clamping rod and the clamping pipe realizes the rapid connection between the drone body and the chassis system. The movement and sliding of the rotating block in the insertion groove and the rotating groove ensure the firmness of the connection. The cooperation of the transverse locking rod and the locking groove further enhances the safety of the connection. The rapid clamping design simplifies the installation process and improves the operation convenience.

[0019] The utility model is provided with a clamping auxiliary mechanism. Through the cooperation of the threaded lock ring, the rotating block and the upper top block, the fixing of the clamping rod is further strengthened. The design of the threaded lock ring allows the operator to finely adjust the clamping strength. The design of the longitudinal moving sleeve and the inner pushing groove realizes the automatic pushing and locking of the transverse locking rod. The multiple locking mechanisms significantly improve the reliability of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the whole device in the unused state of the utility model;

[0021] Figure 2 It is a schematic structural diagram of the chassis clamping mechanism in the utility model;

[0022] Figure 3 It is a schematic structural diagram of the chassis clamping mechanism from different perspectives in the utility model;

[0023] Figure 4 It is a schematic structural diagram of the chassis clamping mechanism and the clamping auxiliary mechanism in the utility model;

[0024] Figure 5 This is a schematic structural diagram after the operation of the underframe clamping mechanism in the present utility model.

[0025] Figure 6 This is a schematic structural diagram inside the underframe clamping mechanism and the clamping auxiliary mechanism in the present utility model.

[0026] In the figure: 1, unmanned aerial vehicle body; 2, rotating motor; 3, transverse moving platform; 4, lead screw; 5, guide rod; 6, guide sleeve; 7, threaded block; 8, rotating box; 9, clamping pipe; 10, clamping rod; 11, extending groove; 12, rotating groove; 13, rotating block; 14, tension spring; 15, transverse locking rod; 16, locking groove; 17, fixed block; 18, winding rod; 19, winding spring; 20, rotating block; 21, upward pressing block; 22, pressed block; 23, threaded locking ring; 24, longitudinal moving sleeve; 25, inner pushing groove; 26, mounting plate; 27, connecting plate; 28, rotating motor; 29, rotating rod; 30, mounting bracket; 31, camera assembly; 32, fixing plate; 33, reset spring; 34, support frame. Detailed implementation manners

[0027] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0028] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the present application have the same meanings as those commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0029] In the present utility model, without contrary description, the orientations such as "upper, lower" are usually in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left, right" are usually in the left and right shown in the drawings; "inner, outer" refer to the inner and outer of the contours of each component itself, but the above orientation terms are not used to limit the present utility model.

[0030] Please refer to Figures 1-5, a drone frame for bridge inspection, comprising a drone body 1, a camera moving mechanism, a chassis clamping mechanism and a clamping assisting mechanism. The camera moving mechanism includes a rotating motor 2, a transverse moving platform 3, a lead screw 4, a guide rod 5, a guide sleeve 6, a threaded block 7 and a rotating box 8. The rotating motor 2 is installed at one end of the transverse moving platform 3. One end of the lead screw 4 is rotatably arranged on the transverse moving platform 3, and the other end of the lead screw 4 is cooperatively connected with the rotating motor 2. The threaded block 7 is installed on the lead screw 4, and the rotating box 8 is cooperatively connected with the threaded block 7. The guide sleeve 6 on the rotating box 8 is slidably guided in cooperation with the guide rod 5 of the transverse moving platform 3. The chassis clamping mechanism includes a clamping pipe 9, a clamping rod 10, a inserting groove 11, a rotating groove 12, a rotating block 13, a tension spring 14, a transverse locking rod 15 and a locking groove 16. The inserting groove 11 is arranged on the inner wall of the clamping pipe 9. The rotating groove 12 is arranged at the top end of the inner wall of the clamping pipe 9. The rotating block 13 is arranged on the clamping rod 10. The rotating block 13 longitudinally moves in the inserting groove 11 and rotates and slides in the rotating groove 12. The locking groove 16 is arranged on the clamping rod 10. The transverse locking rod 15 movably extends into the side wall of the clamping pipe 9. The tension spring 14 is arranged between the outer wall of the clamping pipe 9 and one end of the transverse locking rod 15.

[0031] In this embodiment, the rotating motor 2 is installed at one end of the transverse moving platform 3. After starting, it drives the lead screw 4 to rotate. One end of the lead screw 4 is rotatably arranged on the transverse moving platform 3, and the other end is cooperatively connected with the rotating motor 2. The rotation of the lead screw 4 drives the threaded block 7 to move along the axial direction of the lead screw 4. The threaded block 7 is installed on the lead screw 4. As the lead screw 4 rotates, the threaded block 7 moves along the axial direction of the lead screw 4, driving the rotating box 8 and the camera assembly 31 to move together. The guide sleeve 6 on the rotating box 8 is slidably guided in cooperation with the guide rod 5 of the transverse moving platform 3, ensuring the stability of the camera assembly 31 during the movement. A rotating motor 28 is installed in the rotating box 8, and a rotating rod 29 is installed at its output end. One end of the rotating rod 29 is installed with a mounting bracket 30, and a camera assembly 31 is installed on the mounting bracket 30 for taking images of the bridge. The clamping rod 10 longitudinally moves in the inserting groove 11 and rotates and slides in the rotating groove 12 to realize the positioning and fixing of the clamping rod 10. The transverse locking rod 15 movably extends into the side wall of the clamping pipe 9 and cooperates with the locking groove 16 to fix the clamping rod 10 in the clamping pipe 9. The tension spring 14 is arranged between the outer wall of the clamping pipe 9 and one end of the transverse locking rod 15, making the transverse locking rod 15 away from the locking groove 16.

[0032] The clamping auxiliary mechanism includes a fixed block 17, a winding rod 18, a winding spring 19, a rotating block 20, an upper top block 21, a receiving top block 22, a threaded locking ring 23, a longitudinal moving sleeve 24 and an inner pushing groove 25. The fixed block 17 is fixedly installed on the outer wall of the clamping pipe 9. One ends of the winding rod 18 and the winding spring 19 are connected to the fixed block 17 in a matching manner. The rotating block 20 rotates and slides on the winding rod 18, and one end of the winding spring 19 is connected to one end of the rotating block 20 in a matching manner. The upper top block 21 is installed on the top of the rotating block 20. The receiving top block 22 is installed at the bottom of the longitudinal moving sleeve 24. The threaded locking ring 23 rotates on the clamping pipe 9 in a threaded manner, pushing the rotating block 20 to rotate. The upper top block 21 then pushes the receiving top block 22 to move the longitudinal moving sleeve 24 on the outer wall of the clamping pipe 9. The inner pushing groove 25 on the inner wall of the longitudinal moving sleeve 24 pushes the transverse locking rod 15, so that one end of the transverse locking rod 15 extends into the locking groove 16 to fix the clamping rod 10 again.

[0033] In this embodiment, the rotating block 20 rotates and slides on the winding rod 18. One ends of the winding rod 18 and the winding spring 19 are connected to the fixed block 17 in a matching manner. One end of the winding spring 19 is connected to one end of the rotating block 20 in a matching manner. The upper top block 21 is installed on the top of the rotating block 20. The receiving top block 22 is installed at the bottom of the longitudinal moving sleeve 24. The threaded locking ring 23 rotates on the clamping pipe 9 in a threaded manner, pushing the rotating block 20 to rotate. The upper top block 21 pushes the receiving top block 22 to move the longitudinal moving sleeve 24 on the outer wall of the clamping pipe 9. The inner pushing groove 25 on the inner wall of the longitudinal moving sleeve 24 pushes the transverse locking rod 15, so that one end of the transverse locking rod 15 extends into the locking groove 16 to further fix the clamping rod 10.

[0034] Please refer to Figures 1-5 , as a supplementary implementation method of a UAV frame for bridge detection for the camera moving mechanism, the chassis clamping mechanism and the clamping auxiliary mechanism: mounting plates 26 are installed at both ends of the transverse moving platform 3. A connecting plate 27 is installed at the bottom end of the side wall of the clamping pipe 9, and the connecting plate 27 is fixedly installed on the top end surface of the mounting plate 26. One end of the clamping rod 10 is connected to the bottom end of the UAV body 1 in a limited rotation manner in a matching way, and the other end of the clamping rod 10 extends through the mounting plate 26 and is arranged in a quick clamping connection with the clamping pipe 9 to realize the quick connection between the chassis system and the UAV body 1. A rotating motor 28 is installed in the rotating box 8, and a rotating rod 29 is installed at the output end of the rotating motor 28. A mounting frame 30 is installed at one end of the rotating rod 29, and a camera assembly 31 is installed on the mounting frame 30. A fixing plate 32 is fixedly arranged on the side wall of the clamping pipe 9, and a return spring 33 is installed between the bottom of the fixing plate 32 and the top of the longitudinal moving sleeve 24. Support frames 34 are symmetrically installed on both sides of the transverse moving platform 3.

[0035] More specifically, one end of the clamping rod 10 is rotatably connected to the bottom end of the UAV body 1 in a limiting manner, and the other end extends through the mounting plate 26 and is quickly clamped with the clamping pipe 9, realizing the quick connection between the UAV body 1 and the chassis system. Through the camera moving mechanism, the operator can adjust the position and angle of the camera assembly 31 to obtain the best shooting effect. The UAV body 1 carries the camera assembly 31 and flies above the bridge. The operator controls the UAV and the camera assembly 31 to perform bridge inspection through a remote control or an automatic control system. The camera assembly 31 takes images and data of the bridge and sends them back to the operation control center through a wireless transmission system for data analysis. Structures such as the fixing plate 32 and the support frame 34 provide stable support for the entire device, ensuring the safety of the UAV during the inspection.

[0036] In summary, when the overall device is in use or operation: when the camera moving mechanism needs to operate, the rotating motor 2 is installed at one end of the transverse moving platform 3. After starting, it drives the lead screw 4 to rotate. One end of the lead screw 4 is rotatably arranged on the transverse moving platform 3, and the other end is connected to the rotating motor 2 in a matching manner. The rotation of the lead screw 4 drives the threaded block 7 to move along the axial direction of the lead screw 4. The threaded block 7 is installed on the lead screw 4. As the lead screw 4 rotates, the threaded block 7 moves along the axial direction of the lead screw 4, driving the rotating box 8 and the camera assembly 31 to move together. The guide sleeve 6 on the rotating box 8 cooperates with the guide rod 5 of the transverse moving platform 3 for sliding guidance, ensuring the stability of the camera assembly 31 during the movement. A rotating motor 28 is installed inside the rotating box 8, and a rotating rod 29 is installed at its output end. One end of the rotating rod 29 is installed with a mounting frame 30, and the camera assembly 31 is installed on the mounting frame 30 for taking bridge images.

[0037] When the chassis clamping mechanism needs to operate, the clamping rod 10 moves longitudinally in the insertion groove 11 and rotates and slides in the rotation groove 12 to realize the positioning and fixing of the clamping rod 10. The transverse locking rod 15 movably extends into the side wall of the clamping pipe 9 and cooperates with the locking groove 16 to fix the clamping rod 10 in the clamping pipe 9. The tension spring 14 is arranged on the outer wall of the clamping pipe 9 and one end of the transverse locking rod 15, keeping the transverse locking rod 15 away from the locking groove 16.

[0038] When the clamping auxiliary mechanism needs to operate, the rotating block 20 rotates and slides on the winding rod 18. One end of the winding rod 18 and the winding spring 19 are connected to the fixing block 17 in a matching manner, and one end of the winding spring 19 is connected to one end of the rotating block 20 in a matching manner. The upper top block 21 is installed on the top of the rotating block 20, and the receiving top block 22 is installed at the bottom of the longitudinal moving sleeve 24. The threaded locking ring 23 rotates on the clamping pipe 9, pushing the rotating block 20 to rotate. The upper top block 21 pushes the receiving top block 22, causing the longitudinal moving sleeve 24 to move on the outer wall of the clamping pipe 9. The inner pushing groove 25 on the inner wall of the longitudinal moving sleeve 24 pushes the transverse locking rod 15, making one end of the transverse locking rod 15 extend into the locking groove 16 to further fix the clamping rod 10.

[0039] One end of the clamping rod 10 is in limited rotational connection with the bottom end of the drone body 1, and the other end extends through the mounting plate 26 and is in quick clamping connection with the clamping pipe 9, realizing the quick connection between the drone body 1 and the chassis system. Through the camera moving mechanism, the operator can adjust the position and angle of the camera assembly 31 to obtain the best shooting effect. The drone body 1 carries the camera assembly 31 and flies above the bridge. The operator controls the drone and the camera assembly 31 through a remote control or an automatic control system to perform bridge detection. The camera assembly 31 captures images and data of the bridge and sends them back to the operation control center through a wireless transmission system for data analysis. Structures such as the fixing plate 32 and the support frame 34 provide stable support for the entire device, ensuring the safety of the drone during the detection process.

[0040] In all the solutions mentioned above, for the connection between two components, welding, connection with bolts and nuts, connection with bolts or screws, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For those mentioned above that involve fixed connection, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drone frame for bridge inspection, characterized by: The invention comprises an unmanned aerial vehicle body, a camera moving mechanism, a chassis clamping mechanism and a clamping auxiliary mechanism, wherein the camera moving mechanism comprises a rotating motor, a transverse moving platform, a lead screw, a guide rod, a guide sleeve, a threaded block and a rotating box, one end of the lead screw is rotatably arranged on the transverse moving platform, the other end of the lead screw is connected with the rotating motor, the threaded block is installed on the lead screw, the rotating box and the threaded block are connected with each other, the guide sleeve on the rotating box cooperates with the guide rod of the transverse moving platform for sliding guidance, and the chassis clamping mechanism comprises a clamping tube, a clamping rod, an insertion groove, a rotating groove, a rotating block, a tension spring, a transverse locking rod and a locking groove, the insertion groove is arranged on the inner wall of the clamping tube, the rotating groove is arranged on the top end of the inner wall of the clamping tube, the rotating block is arranged on the clamping rod, the rotating block moves longitudinally in the insertion groove, the rotating block rotates and slides in the rotating groove, the locking groove is arranged on the clamping rod, the transverse locking rod movably extends into the side wall of the clamping tube, and the tension spring is arranged on the outer wall of the clamping tube and one end of the transverse locking rod.

2. The drone frame for bridge inspection according to claim 1 is characterized by: The clamping auxiliary mechanism includes a fixed block, a winding rod, a winding spring, a rotating block, an upper push block, a push block, a threaded locking ring, a longitudinal displacement sleeve and an inner push groove. The fixed block is fixedly installed on the outer wall of the clamping tube, one end of the winding rod and the winding spring is matched with the fixed block, the rotating block rotates and slides on the winding rod, and one end of the winding spring is matched with one end of the rotating block, the upper push block is installed on the top of the rotating block, and the push block is installed on the bottom of the longitudinal displacement sleeve. The threaded locking ring rotates on the thread of the clamping tube to push the rotating block to rotate, and the upper push block then pushes the push block to make the longitudinal displacement sleeve move on the outer wall of the clamping tube, so that the inner push groove on the inner wall of the longitudinal displacement sleeve pushes the transverse locking rod.

3. The drone frame for bridge inspection according to claim 1 is characterized by: Mounting plates are installed at both ends of the transverse moving platform, a connecting plate is installed at the bottom end of the side wall of the clamping tube, and the connecting plate is fixedly installed on the top end surface of the mounting plate.

4. The drone frame for bridge inspection according to claim 1 is characterized by: One end of the clamping rod is connected to the bottom end of the drone body in a limited rotational manner, and the other end of the clamping rod extends through the mounting plate and is quickly clamped to the clamping tube to achieve a quick connection between the chassis system and the drone body.

5. The drone frame for bridge inspection according to claim 1 is characterized by: A rotary motor is installed in the rotary box, and a rotating rod is installed at the output end of the rotary motor.

6. The drone frame for bridge inspection according to claim 5 is characterized by: A mounting frame is installed at one end of the rotating rod, and a camera assembly is installed on the mounting frame.

7. The drone frame for bridge inspection according to claim 1 is characterized by: A fixing plate is fixedly arranged on the side wall of the clamping tube, and a return spring is installed between the bottom of the fixing plate and the top of the longitudinal movement sleeve.

8. The drone frame for bridge inspection according to claim 1 is characterized by: Support frames are symmetrically installed on both sides of the transverse moving platform.

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