A crack monitoring device for detecting bridge health

Abstract

The present invention discloses a crack monitoring device for detecting the health of a bridge, which belongs to the field of bridge monitoring technology, and includes a drone, wherein the upper and lower ends of the drone are fixedly connected with a quick-connect assembly; the lower ends of the mounting cross frame are connected with walking assemblies, wherein the two walking assemblies are connected with a driving assembly, and the driving assembly includes a driving shaft, a first bevel gear, a second bevel gear, a transverse shaft and an upper conical wheel; the transverse shaft is rotatably connected to a straight plate, and one end of the transverse shaft is fixedly connected to the rotating shaft of the roller, and the other end of the transverse shaft is fixedly connected to the second bevel gear, the second bevel gear is meshed with the first bevel gear, the first bevel gear is fixedly connected to the lower end of the driving shaft, and the upper end of the driving shaft is connected to the upper conical wheel through an adjusting assembly. In the above manner, the present invention does not need to provide power to the roller when taking off, which is more reasonable and energy-saving. The present invention can be used for monitoring on land and in the air, and has high applicability.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge monitoring, and in particular to a crack monitoring device for detecting the health of a bridge. Background Art

[0002] The health of a bridge is crucial for ensuring the safety of pedestrians. As bridges age, they are bound to develop cracks of varying sizes, which undoubtedly impact their service life. Therefore, regular inspections for cracks in bridges are essential.

[0003] Current bridge crack monitoring devices still have the following problems: some can only be used for monitoring on land, or some are flying monitoring devices that can only be used for monitoring in the air; bridge crack monitoring devices that can both walk and fly have the problem of high energy consumption.

[0004] The present invention designs a crack monitoring device for detecting bridge health to solve the above problems and realizes a land-air three-dimensional detection mode based on energy-saving control. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a crack monitoring device for detecting the health of a bridge.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A crack monitoring device for detecting bridge health includes a drone, the drone including a drone body, a gimbal camera, a mounting cross frame, a drive motor, fan blades, and a drive shaft; the drone body is fixedly connected to the mounting cross frame on all four sides, the mounting cross frame is fixedly connected to the drive motor, the output end of the drive motor is fixedly connected to the drive shaft, the fan blades are fixedly connected to the drive shaft, and the gimbal camera is fixedly mounted on one end of the drone body;

[0008] The upper and lower ends of the drone body are fixedly connected with quick-connect components, and the drone body is connected to the detection component through the quick-connect components;

[0009] The lower ends of the mounting cross frames are connected to walking components, which include straight plates and rollers. The upper ends of the straight plates are fixedly connected to the lower ends of the mounting cross frames, and the lower ends of the straight plates are equipped with rollers.

[0010] Two of the walking assemblies are connected to a driving assembly, which includes a driving shaft, a first bevel gear, a second bevel gear, a horizontal shaft and an upper bevel wheel; the horizontal shaft is rotatably connected to the straight plate, and one end of the horizontal shaft is fixedly connected to the rotating shaft of the roller, and the other end of the horizontal shaft is fixedly connected to the second bevel gear, the second bevel gear is meshed with the first bevel gear, the first bevel gear is fixedly connected to the lower end of the driving shaft, and the upper end of the driving shaft is connected to the upper bevel wheel fixedly connected to the driving shaft through an adjusting assembly.

[0011] Furthermore, the quick-connect assembly includes a straight cylinder, an L-shaped groove, a snap-on groove, a push plate and a spring; the push plate and the spring are installed inside the straight cylinder, the push plate is movably installed inside the straight cylinder, one end of the spring is fixedly connected to the drone body, and the other end of the spring is fixedly connected to the push plate, and the push plate is located on the outside of the spring; an L-shaped groove for vertically limiting the snap-on detection assembly is opened on the side of the straight cylinder away from the drone body.

[0012] Furthermore, a snap-in groove for lateral limitation of the detection component is provided on the L-shaped groove.

[0013] Furthermore, the clamping groove is located on the outer side of the inner end of the L-shaped groove, and the clamping groove is semicircular.

[0014] Furthermore, the detection assembly includes a detection module, a plug rod and a plug cylinder; one end of the detection module is fixedly connected to the plug cylinder, the side wall of the plug cylinder is fixedly connected to the plug rod, and the plug cylinder is plugged into the straight cylinder.

[0015] Furthermore, the diameter of the insertion rod is smaller than the width of the L-shaped groove, and the diameter of the insertion rod is smaller than or equal to the diameter of the clamping groove.

[0016] Furthermore, the adjustment assembly includes a horizontal fixing plate (27), a protrusion (28), an electric push rod (210), an electric push rod installation groove (211), a polygonal plug (212), a lower conical wheel (213), a polygonal slot (214) and a connecting straight shaft (215); the electric push rod (210) is fixedly installed in the electric push rod installation groove (211) provided on the installation horizontal frame (13), the output end of the electric push rod (210) is fixedly connected to one end of the horizontal fixing plate (27), and the other end of the horizontal fixing plate (27) is connected to the connecting straight shaft (215) through a bearing. 15), the upper end of the connecting straight shaft (215) is fixedly connected with a lower conical wheel (213), the lower conical wheel (213) is matched with the upper conical wheel (29), and the outer walls of the lower conical wheel (213) and the upper conical wheel (29) are both provided with a plurality of mutually matched protrusions (28); the lower end of the connecting straight shaft (215) is fixedly connected with a polygonal plug-in block (212), the top of the driving shaft (23) is provided with a polygonal slot (214) for inserting the matched polygonal plug-in block (212), and the upper end of the driving shaft (23) is rotatably connected to the mounting cross frame (13) through a bearing.

[0017] Furthermore, the outer wall of the polygonal plug (212) is in close contact with the inner wall of the polygonal slot (214).

[0018] Beneficial effects

[0019] When the detection assembly (4) is installed in the present invention, the plug-in tube (43) is plugged into the straight tube (31), the plug rod (42) is vertically pushed into the L-shaped groove (32), and then the detection module (41) is rotated to push the plug rod (42) into the inner end of the L-shaped groove (32) to achieve vertical limitation of the plug rod (42). At this time, the spring (35) is in a compressed state, and the spring (35) gives the push plate (34) an outward force, and the push plate (34) pushes the plug rod (42) outward into the clamping groove (33), thereby achieving lateral limitation of the plug rod (42), which can enhance the installation stability of the detection assembly (4).

[0020] When the present invention needs to shoot on land, the electric push rod (210) drives the horizontal fixed plate (27) to move upward, the horizontal fixed plate (27) drives the connecting straight shaft (215) to move upward, the connecting straight shaft (215) drives the polygonal plug (212) to move upward, the connecting straight shaft (215) drives the lower conical wheel (213) to move upward and contact and connect with the upper conical wheel (29), and then the driving motor (14) on one side connected to the two walking components (2) is turned on, the speed of the driving motor (14) is adjusted to 10-20r / min, the driving motor drives the upper conical wheel to rotate, the upper conical wheel drives the lower conical wheel to rotate, the lower conical wheel drives the connecting straight shaft to rotate, the connecting straight shaft drives the driving shaft to rotate, the driving shaft drives the second conical gear to rotate through the first bevel gear, the second bevel gear drives the horizontal shaft to rotate, and the horizontal shaft drives the roller to rotate. Since the speed of the driving motor is very low at this time, the crack monitoring device for detecting the health of the bridge can only move and cannot take off.

[0021] When the present invention needs to be filmed in flight, the electric push rod drives the horizontal fixed plate to move downward, the horizontal fixed plate drives the connecting straight shaft to move downward, the connecting straight shaft drives the polygonal plug to move downward, and the connecting straight shaft drives the lower conical wheel to move downward and separate from the upper conical wheel. At this time, the driving assembly and the adjustment assembly both stop moving. Then the four drive motors are turned on, and the drive motors drive the fan blades to rotate to achieve takeoff. During takeoff, since the lower conical wheel is separated from the upper conical wheel, there is no need to provide power to the roller, which is more reasonable and energy-saving. The present invention can be used for monitoring on land as well as for monitoring in the air. It has high applicability. When detecting on land, the detection assembly is installed in the quick-connect assembly at the lower end. When detecting the bottom of a bridge, the detection assembly is installed in the quick-connect assembly at the upper end. It is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0023] Figure 1 The main structure of the crack monitoring device for detecting bridge health of the present invention is a three-dimensional Figure 1 ;

[0024] Figure 2 This is a front view of the structure of a crack monitoring device for detecting bridge health according to the present invention;

[0025] Figure 3 It is a left side view of the structure of the present invention;

[0026] Figure 4 The main structure of the crack monitoring device for detecting bridge health of the present invention is a three-dimensional Figure 2 ;

[0027] Figure 5 The main structure of the crack monitoring device for detecting bridge health of the present invention is a three-dimensional Figure 3 ;

[0028] Figure 6 To follow Figure 2 AA direction cross-sectional view;

[0029] Figure 7 To follow Figure 2 BB direction cross-sectional view;

[0030] Figure 8 for Figure 7 Enlarged view of point C in the middle.

[0031] The numbers in the figure represent:

[0032] 1. Drone 11. Drone body 12. Gimbal camera 13. Mounting crossbeam 14. Drive motor 15. Fan blades 16. Drive shaft 2. Travel assembly 21. Straight plate 22. Roller 23. Drive shaft 24. First bevel gear 25. Second bevel gear 26. Horizontal axis 27. Horizontal fixing plate 28. Bump 29. Upper conical wheel 210. Electric push rod 211. Electric push rod mounting slot 212. Polygonal insert 213. Lower conical wheel 214. Polygonal slot 215. Connecting straight shaft 3. Quick-connect assembly 31. Straight cylinder 32. L-shaped slot 33. Snap-in slot 34. Push plate 35. Spring 4. Detection assembly 41. Detection module 42. Insert rod 43. Insert cylinder DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] The present invention will be further described below with reference to the embodiments.

[0035] Example 1

[0036] Please refer to the instruction manual Figure 1-8 A crack monitoring device for detecting the health of a bridge includes a drone 1, which includes a drone body 11, a gimbal camera 12, a mounting cross frame 13, a drive motor 14, fan blades 15, and a drive shaft 16. The drone body 11 is fixedly connected to the mounting cross frame 13 on all four sides, and the mounting cross frame 13 is fixedly connected to the drive motor 14. The output end of the drive motor 14 is fixedly connected to the drive shaft 16, and the fan blades 15 are fixedly connected to the drive shaft 16. One end of the drone body 11 is fixedly mounted with a gimbal camera 12, which is used for pathfinding.

[0037] The upper and lower ends of the drone body 11 are fixedly connected to the quick-connect assembly 3, and the drone body 11 is connected to the detection assembly 4 through the quick-connect assembly 3;

[0038] The quick-connect assembly 3 includes a straight tube 31, an L-shaped groove 32, a snap-fit ​​groove 33, a push plate 34, and a spring 35. The push plate 34 and the spring 35 are installed inside the straight tube 31. The push plate 34 is movably installed inside the straight tube 31. One end of the spring 35 is fixedly connected to the drone body 11, and the other end of the spring 35 is fixedly connected to the push plate 34. The push plate 34 is located outside the spring 35. An L-shaped groove 32 for vertically limiting the snap-fit ​​detection assembly 4 is defined on the side of the straight tube 31 away from the drone body 11. A snap-fit ​​groove 33 for lateral limiting the detection assembly 4 is defined on the L-shaped groove 32. The snap-fit ​​groove 33 is located outside the inner end of the L-shaped groove 32 and is semicircular in shape.

[0039] The detection assembly 4 includes a detection module 41, an insertion rod 42, and an insertion barrel 43. One end of the detection module 41 is fixedly connected to the insertion barrel 43, and the insertion rod 42 is fixedly connected to the side wall of the insertion barrel 43. The insertion barrel 43 is inserted into the straight barrel 31. The diameter of the insertion rod 42 is slightly smaller than the width of the L-shaped groove 32, and the diameter of the insertion rod 42 is less than or equal to the diameter of the clamping groove 33.

[0040] When installing the detection component 4, insert the plug-in tube 43 into the straight tube 31, push the plug rod 42 vertically into the L-shaped groove 32, and then rotate the detection module 41 to push the plug rod 42 into the inner end of the L-shaped groove 32 to achieve vertical limitation of the plug rod 42. At this time, the spring 35 is in a compressed state, and the spring 35 gives the push plate 34 an outward force, and the push plate 34 pushes the plug rod 42 outward into the clamping groove 33, thereby achieving lateral limitation of the plug rod 42, which can enhance the installation stability of the detection component 4.

[0041] The lower end of the mounting cross frame 13 is connected to the walking assembly 2, which includes a straight plate 21 and a roller 22. The upper end of the straight plate 21 is fixedly connected to the lower end of the mounting cross frame 13, and the lower end of the straight plate 21 is equipped with a roller 22;

[0042] Two of the walking assemblies 2 are connected to a driving assembly, which includes a driving shaft 23, a first bevel gear 24, a second bevel gear 25, a transverse shaft 26 and an upper conical wheel 29; the transverse shaft 26 is rotatably connected to the straight plate 21, and one end of the transverse shaft 26 is fixedly connected to the rotating shaft of the roller 22, and the other end of the transverse shaft 26 is fixedly connected to the second bevel gear 25, the second bevel gear 25 is meshed with the first bevel gear 24, and the first bevel gear 24 is fixedly connected to the lower end of the driving shaft 23, and the upper end of the driving shaft 23 is connected to the upper conical wheel 29 fixedly connected to the driving shaft 16 through an adjusting assembly;

[0043] The adjustment assembly includes a horizontal fixing plate 27, a protrusion 28, an electric push rod 210, an electric push rod mounting groove 211, a polygonal insert 212, a lower conical wheel 213, a polygonal slot 214 and a connecting straight shaft 215; the electric push rod 210 is fixedly installed in the electric push rod mounting groove 211 opened on the mounting cross frame 13, the output end of the electric push rod 210 is fixedly connected to one end of the horizontal fixing plate 27, the other end of the horizontal fixing plate 27 is connected to the connecting straight shaft 215 through a bearing, and the upper end of the connecting straight shaft 215 is fixedly connected A lower conical wheel 213 is connected, and the lower conical wheel 213 is connected to the upper conical wheel 29. The outer walls of the lower conical wheel 213 and the upper conical wheel 29 are both provided with a plurality of mutually cooperating protrusions 28. The lower end of the connecting straight shaft 215 is fixedly connected to a polygonal plug block 212. The top of the driving shaft 23 is provided with a polygonal slot 214 that fits the polygonal plug block 212. The outer wall of the polygonal plug block 212 is in contact with the inner wall of the polygonal slot 214. The upper end of the driving shaft 23 is rotatably connected to the mounting cross frame 13 via a bearing.

[0044] When it is necessary to shoot on land, the electric push rod 210 drives the horizontal fixed plate 27 to move upward, the horizontal fixed plate 27 drives the connecting straight shaft 215 to move upward, the connecting straight shaft 215 drives the polygonal plug 212 to move upward, the connecting straight shaft 215 drives the lower conical wheel 213 to move upward and contact and connect with the upper conical wheel 29, and then the driving motor 14 on the side connected to the two walking components 2 is turned on, the driving motor 14 speed is adjusted to 10-20r / min, the driving motor 14 drives the upper conical wheel 29 to rotate, the upper conical wheel 29 drives the lower conical wheel 213 to rotate, the lower conical wheel 213 drives the connecting straight shaft 215 to rotate, the connecting straight shaft 215 drives the driving shaft 23 to rotate, the driving shaft 23 drives the second bevel gear 25 to rotate through the first bevel gear 24, the second bevel gear 25 drives the horizontal shaft 26 to rotate, and the horizontal shaft 26 drives the roller 22 to rotate. Since the speed of the driving motor 14 is very low at this time, the crack monitoring device for detecting bridge health can only walk and will not take off.

[0045] When flight shooting is required, the electric push rod 210 drives the horizontal fixed plate 27 to move downward, the horizontal fixed plate 27 drives the connecting straight shaft 215 to move downward, the connecting straight shaft 215 drives the polygonal plug 212 to move downward, and the connecting straight shaft 215 drives the lower conical wheel 213 to move downward and separate from the upper conical wheel 29. At this time, the drive component and the adjustment component both stop moving. Then the four drive motors 14 are turned on, and the drive motors 14 drive the fan blades 15 to rotate to achieve takeoff. During takeoff, since the lower conical wheel 213 is separated from the upper conical wheel 29, there is no need to provide power to the roller 22, which is more reasonable and energy-saving. The present invention can be used for monitoring on land or in the air, and has high applicability. When detecting on land, the detection component 4 is installed in the quick-connect component 3 at the lower end. When detecting the bottom of a bridge, the detection component 4 is installed in the quick-connect component 3 at the upper end, which is easy to use.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A crack monitoring device for detecting bridge health, comprising a drone (1), characterized in that: The drone (1) comprises a drone body (11), a gimbal camera (12), a mounting cross frame (13), a driving motor (14), a fan blade (15) and a driving shaft (16); the drone body (11) is fixedly connected to the mounting cross frame (13) on all four sides, the mounting cross frame (13) is fixedly connected to the driving motor (14), the output end of the driving motor (14) is fixedly connected to the driving shaft (16), the fan blade (15) is fixedly connected to the driving shaft (16), and the gimbal camera (12) is fixedly mounted on one end of the drone body (11); The upper and lower ends of the drone body (11) are fixedly connected to a quick-connect assembly (3), and the drone body (11) is connected to the detection assembly (4) via the quick-connect assembly (3); The lower ends of the mounting cross frames (13) are connected to walking components (2), and the walking components (2) include a straight plate (21) and a roller (22). The upper end of the straight plate (21) is fixedly connected to the lower end of the mounting cross frame (13), and the lower end of the straight plate (21) is equipped with a roller (22). The two walking assemblies (2) are connected to a driving assembly, the driving assembly comprising a driving shaft (23), a first bevel gear (24), a second bevel gear (25), a transverse shaft (26) and an upper conical wheel (29); the transverse shaft (26) is rotatably connected to the straight plate (21), and one end of the transverse shaft (26) is fixedly connected to the rotating shaft of the roller (22), and the other end of the transverse shaft (26) is fixedly connected to the second bevel gear (25), the second bevel gear (25) is meshed with the first bevel gear (24), the first bevel gear (24) is fixedly connected to the lower end of the driving shaft (23), and the upper end of the driving shaft (23) is connected to the upper conical wheel (29) on the driving rotating shaft (16) through the adjusting assembly; The adjustment assembly includes a horizontal fixing plate (27), a protrusion (28), an electric push rod (210), an electric push rod mounting groove (211), a polygonal plug (212), a lower conical wheel (213), a polygonal slot (214) and a connecting straight shaft (215); the electric push rod (210) is fixedly installed in the electric push rod mounting groove (211) opened on the mounting horizontal frame (13), the output end of the electric push rod (210) is fixedly connected to one end of the horizontal fixing plate (27), and the other end of the horizontal fixing plate (27) is fixedly connected to the electric push rod mounting groove (211). One end is connected to a connecting straight shaft (215), the upper end of the connecting straight shaft (215) is fixedly connected to a lower conical wheel (213), the lower conical wheel (213) is matched with the upper conical wheel (29), and the outer walls of the lower conical wheel (213) and the upper conical wheel (29) are both provided with a plurality of mutually matching protrusions (28); the lower end of the connecting straight shaft (215) is fixedly connected to a polygonal plug-in block (212), and the top of the driving shaft (23) is provided with a polygonal slot (214) for inserting the matching polygonal plug-in block (212).

2. A crack monitoring device for detecting bridge health according to claim 1, characterized in that: The quick-connect assembly (3) includes a straight cylinder (31), an L-shaped groove (32), a snap-on groove (33), a push plate (34) and a spring (35); the push plate (34) and the spring (35) are installed inside the straight cylinder (31), the push plate (34) is movably installed inside the straight cylinder (31), one end of the spring (35) is fixedly connected to the drone body (11), and the other end of the spring (35) is fixedly connected to the push plate (34), and the push plate (34) is located outside the spring (35); the straight cylinder (31) is provided with an L-shaped groove (32) on a side away from the drone body (11) for vertically limiting the detection assembly (4).

3. A crack monitoring device for detecting bridge health according to claim 2, characterized in that: The L-shaped groove (32) is provided with a snap-in groove (33) for laterally limiting the detection component (4).

4. A crack monitoring device for detecting bridge health according to claim 3, characterized in that: The clamping groove (33) is located outside the inner end of the L-shaped groove (32), and the clamping groove (33) is semicircular.

5. The crack monitoring device for detecting bridge health according to claim 4 is characterized in that: The detection assembly (4) comprises a detection module (41), an insertion rod (42) and an insertion cylinder (43); one end of the detection module (41) is fixedly connected to the insertion cylinder (43), a side wall of the insertion cylinder (43) is fixedly connected to the insertion rod (42), and the insertion cylinder (43) is inserted into the straight cylinder (31).

6. A crack monitoring device for detecting bridge health according to claim 5, characterized in that: The diameter of the insertion rod (42) is smaller than the width of the L-shaped groove (32), and the diameter of the insertion rod (42) is smaller than or equal to the diameter of the clamping groove (33).

7. The crack monitoring device for detecting bridge health according to claim 1 is characterized in that: The outer wall of the polygonal insert (212) is in contact with the inner wall of the polygonal slot (214).

Images