Laser scanning device for road and bridge risk monitoring

Abstract

The invention relates to the technical field of road and bridge laser scanning monitoring, in particular to a road and bridge risk monitoring laser scanning device which comprises a main barrel, a supporting barrel, wheels, a handle, a tri-color lamp, a camera assembly, an extension assembly, an adjusting assembly and a rotating assembly, the main barrel is arranged on the upper surface of a base, and the supporting barrel is arranged on the lower surface of the main barrel; the wheels are arranged on the supporting barrel, the handle is arranged on the supporting barrel, the three-color lamp is arranged on the upper surface of the main barrel, an operator turns on a third driving motor in the adjusting assembly, the third driving motor rotates to drive a first rotating ring to rotate, the first rotating ring rotates to drive a laser scanner to move, and a top plate moves to drive a magnifying lens to move. Under extreme weather conditions, laser beams emitted by the laser scanner can be more focused at the focus point by adjusting the angle of the magnifying lens, and the energy density and penetrating power of the laser are improved.

Description

Technical Field

[0001] The invention relates to the technical field of road and bridge laser scanning monitoring, and in particular to a laser scanning device for road and bridge risk monitoring. Background Art

[0002] As we all know, the field of road and bridge laser scanning monitoring technology is an important field that integrates modern science and engineering practice. It plays a key role in ensuring the safety of road and bridge structures and improving maintenance efficiency. Laser scanning measurement technology can achieve millimeter-level measurement accuracy and provide accurate data support for deformation, cracks and other defect detection of roads and bridges. Compared with traditional detection methods, laser scanning technology has faster measurement speed and higher work efficiency, which can greatly shorten the detection cycle. Laser scanning equipment can automatically collect data and automatically identify and locate defects such as cracks through image processing algorithms, reduce human errors and improve detection efficiency. Laser scanning technology can obtain the overall three-dimensional geometric information of roads and bridges, and provide more comprehensive data support for structural analysis and health assessment.

[0003] In the prior art, the performance of laser scanning equipment may be seriously affected under extreme weather conditions (such as heavy rain, heavy fog, strong wind, etc.). In addition, in areas with dense vegetation or complex terrain, the laser beam may be blocked or dispersed, resulting in incomplete data or reduced accuracy. When performing laser inspection on special bridges, the laser scanning range of the laser scanner needs to cover the entire bridge when it is working, and a lot of time is wasted in finding the location. In order to solve the above problems, a laser scanning device for road and bridge risk monitoring is needed. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a laser scanning device for road and bridge risk monitoring to solve the problems raised in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solution: a laser scanning device for road and bridge risk monitoring, comprising a base, and further comprising:

[0008] A main barrel, the main barrel being arranged on the upper surface of the base;

[0009] A supporting cylinder, wherein the supporting cylinder is arranged on the lower surface of the main cylinder;

[0010] Wheels, each of the wheels is arranged on the supporting drum;

[0011] A handle, the handle being arranged on the supporting barrel;

[0012] A three-color light, the three-color light being arranged on the upper surface of the main barrel;

[0013] A camera assembly, wherein the camera assembly is arranged on the main barrel;

[0014] An extension assembly, the extension assembly being arranged on the upper surface of the main barrel;

[0015] an adjusting component, wherein the adjusting component is arranged on the extending component;

[0016] A rotating assembly is arranged on the adjusting assembly.

[0017] Preferably, the camera assembly comprises:

[0018] a first long plate, wherein the first long plate is arranged on the main barrel;

[0019] a second long board, the second long board being arranged on the first long board;

[0020] A semicircular groove, the semicircular groove is provided on the second long plate;

[0021] a first hexagonal bolt, the first hexagonal bolt being mounted on the second long plate and the first long plate;

[0022] a second hexagonal bolt, the second hexagonal bolt being mounted on the semicircular groove, and the second hexagonal bolt being mounted on the first long plate;

[0023] A visible light camera, wherein the visible light camera is arranged on the second long board;

[0024] A triangle plate is arranged on the visible light camera, and the triangle plate is arranged on the second long plate.

[0025] Furthermore, the extension assembly includes:

[0026] A first supporting circular plate, wherein the first supporting circular plate is arranged on the upper surface of the main barrel;

[0027] A first round block, wherein the first round block is arranged on the first supporting circular plate;

[0028] a first long groove, wherein the first long groove is formed on the first round block;

[0029] a first driving motor, wherein the first driving motor is mounted on the first round block;

[0030] a first rotating block, wherein the first rotating block is arranged on the first long slot;

[0031] A first cylinder, wherein the first cylinder is arranged on the first rotating block.

[0032] Furthermore, the extension assembly also includes:

[0033] a second round block, the second round block being arranged at the other end of the first cylinder;

[0034] a second long groove, wherein the second long groove is formed on the second rotating block;

[0035] a second driving motor, wherein the second driving motor is mounted on the second round block;

[0036] a second rotating block, wherein the second rotating block is arranged on the second long groove;

[0037] a second cylinder, wherein the second cylinder is disposed on the second rotating block;

[0038] A second fixing column, wherein the second fixing column is arranged on the second cylinder.

[0039] In a further embodiment, the regulating component comprises:

[0040] a first supporting long plate, wherein the first supporting long plate is arranged on the second fixing column;

[0041] A shell, the shell being arranged on the first supporting long board;

[0042] a first rotating ring, wherein the first rotating ring is arranged on an upper surface of the housing;

[0043] first long columns, each of which is arranged on the first rotating ring;

[0044] second long columns, each of the second long columns being arranged on the first long columns;

[0045] A long column support plate, wherein the long column support plate is arranged on the upper surface of each of the second long columns;

[0046] A laser scanner, wherein the laser scanner is arranged on the long column support plate;

[0047] a first helical tooth, wherein the first helical tooth is mounted on the first rotating ring;

[0048] a helical gear meshing with the first helical teeth;

[0049] a motor support plate, the motor support plate being arranged on the lower surface of the housing,

[0050] A third driving motor is mounted on the motor support plate, and the bevel gear is mounted on the third driving motor.

[0051] Based on the above solution, the adjustment component further includes:

[0052] an upper plate, the upper plate being arranged on the inner surface of the first rotating ring;

[0053] a first rotating shaft, wherein the first rotating shaft is disposed on the upper surface of the upper plate;

[0054] A semicircular shaft, wherein the semicircular shaft is arranged on the upper surface of the first rotating shaft;

[0055] The first semicircular rings are each arranged on the semicircular shaft.

[0056] Based on the above solution, the adjustment component further includes:

[0057] A semicircular gear rack, wherein the semicircular gear rack is arranged on the semicircular shaft;

[0058] Semicircular support plates, each of the semicircular support plates is arranged on the first semicircular ring;

[0059] A top plate, which is arranged on the upper surface of each of the semicircular support plates;

[0060] A first rib plate is disposed between the semicircular support plate and the top plate.

[0061] On the basis of the above scheme, the rotating assembly comprises:

[0062] A small turntable, the small turntable is arranged on the upper surface of the top plate;

[0063] A turntable base, wherein the turntable base is arranged on the upper surface of the small turntable;

[0064] A mirror frame, wherein the mirror frame is arranged on the upper surface of the turntable base;

[0065] An adjustment button, wherein the adjustment button is arranged on the mirror frame;

[0066] A magnifying glass is arranged on the inner surface of the mirror frame.

[0067] On the basis of the above solution, the rotating assembly further includes:

[0068] Square plates, each of which is arranged on the lower surface of the bottom plate;

[0069] A worm, wherein the worm is arranged between the square plates;

[0070] A fourth driving motor is installed on the other side of one of the square plates.

[0071] Further on the basis of the above solution, the rotating assembly further includes:

[0072] A crankshaft, one end of which is arranged on the small turntable;

[0073] Square plates, each of which is arranged on the first rotating ring;

[0074] A connecting shaft is arranged on the crankshaft and between the square plates.

[0075] (III) Beneficial effects

[0076] Compared with the prior art, the present invention provides a laser scanning device for road and bridge risk monitoring, which has the following beneficial effects:

[0077] 1. In the laser scanning device for road and bridge risk monitoring, the operator turns on the third drive motor in the adjustment component. The rotation of the third drive motor drives the first rotating ring to rotate. The rotation of the first rotating ring drives the laser scanner to move. At the same time, the square plate of the rotating component drives the crankshaft to rotate through the connecting shaft, so that the magnifying glass and the laser scanner rotate in the same direction at the same time. By turning on the fourth drive motor, the fourth drive motor drives the worm to rotate. The worm rotates on the semicircular rack to drive the top plate to move. The movement of the top plate drives the magnifying glass to move. Under extreme weather conditions, the laser beam emitted by the laser scanner can adjust the angle of the magnifying glass to make the laser more focused at the focal point, thereby improving the laser energy density and penetration.

[0078] 2. For the laser scanning device for road and bridge risk monitoring, the operator turns on the first drive motor in the extension assembly. The rotation of the first drive motor drives the first rotating block to rotate. The rotation of the first rotating block drives the first cylinder to move. The first cylinder is telescopically movable. The second cylinder can be extended under the bridge through the telescopic movement. The second cylinder is telescopically movable. The laser scanner can be extended to the position under the bridge and other positions that can be completely scanned by the laser, so that the scanning results of the laser scanner are more accurate, the accuracy of road and bridge detection is increased, and the safety of road and bridge detection is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0079] Figure 1 It is a side view structural schematic diagram of the present invention;

[0080] Figure 2 This is a schematic diagram of the first long board structure of the present invention;

[0081] Figure 3 It is a schematic diagram of the shell structure of the present invention;

[0082] Figure 4 is a schematic diagram of the structure of a third driving motor of the present invention;

[0083] Figure 5 It is a schematic diagram of the structure of the magnifying glass of the present invention;

[0084] Figure 6 It is a schematic diagram of the structure of the visible light camera of the present invention;

[0085] Figure 7 It is a schematic diagram of the semicircular groove structure of the present invention;

[0086] Figure 8 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0087] Fig. 9 For the present invention Figure 2 Schematic diagram of the local enlarged structure at point B in the middle.

[0088] In the figure: 1, base; 2, main drum; 3, supporting drum; 4, wheel; 5, handle; 6, three-color light; 7, first long board; 8, second long board; 9, semicircular groove; 10, first hexagonal bolt; 11, second hexagonal bolt; 12, visible light camera; 13, triangle plate; 14, first supporting circular plate; 15, first round block; 16, first long groove; 17, first driving motor; 18, first rotating block; 19, first cylinder; 20, second round block; 21, second long groove; 22, second driving motor; 23, second rotating block; 24, second cylinder; 25, second fixed column; 26, first supporting long board; 27, shell; 2 8. First rotating ring; 29. ​​First long column; 30. Second long column; 31. Long column support plate; 32. Laser scanner; 33. First helical tooth; 34. Helical gear; 35. Motor support plate; 36. Third drive motor; 37. Upper plate; 38. First rotating shaft; 39. Semicircular shaft; 40. First semicircular ring; 41. Semicircular rack; 42. Semicircular support plate; 43. Top plate; 44. First rib plate; 45. Small turntable; 46. Turntable base; 47. Mirror frame; 48. Adjustment button; 49. Magnifying glass; 50. Square plate; 51. Worm; 52. Fourth drive motor; 53. Crankshaft; 54. Square plate; 55. Connecting shaft. DETAILED DESCRIPTION

[0089] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 creative work are within the scope of protection of the present invention.

[0090] See also Figures 1 to 9A laser scanning device for road and bridge risk monitoring includes a base 1. The function of the base 1 is to fix and support the entire device to ensure the stability of the entire device during operation. It also includes: a main barrel 2, a supporting barrel 3, wheels 4, a handle 5, a three-color lamp 6, a camera assembly, an extension assembly, an adjustment assembly, and a rotating assembly. The main barrel 2 is fixedly connected to the upper surface of the base 1 and is the main part supporting other components. The supporting barrel 3 is fixedly connected to the lower surface of the main barrel 2 and is used to support the wheels 4 and the handle 5. Each wheel 4 is rotatably connected to the supporting barrel 3 and is installed on the supporting barrel 3 to provide mobility. The handle 5 is fixedly connected to the supporting barrel 3 to facilitate users to move the entire structure. The three-color lamp 6 is detachably connected to the upper surface of the main barrel 2. The function of the three-color lamp 6 is to observe the operation of the equipment more intuitively. The camera assembly is installed on the main barrel 2, the extension assembly is installed on the upper surface of the main barrel 2, the adjustment assembly is installed on the extension assembly, and the rotating assembly is installed on the adjustment assembly.

[0091] First, see Figure 6In this embodiment, the camera assembly includes: a first long plate 7, a second long plate 8, a semicircular groove 9, a first hexagonal bolt 10, a second hexagonal bolt 11, a visible light camera 12, and a triangular plate 13. The first long plate 7 is fixedly connected to the main barrel 2 and fixed to the main barrel 2 as a basic supporting structure of the camera assembly. The second long plate 8 is rotatably connected to the first long plate 7, allowing the camera assembly to adjust the angle within a certain range. The semicircular groove 9 is provided on the second long plate 8 to cooperate with the second hexagonal bolt 11 to adjust the specific angle and position of the visible light camera 12. The first hexagonal bolt 10 is installed on the second long plate 8 and the first long plate 7 to fix the basic position of the second long plate 8 while allowing a certain degree of rotation. The second hexagonal bolt 11 is installed on the semicircular groove 9, and the second hexagonal bolt 11 is installed on the first long plate 7. By adjusting the second hexagonal bolt 11, the angle and position of the visible light camera 12 can be accurately adjusted within the range of the semicircular groove 9. The visible light camera 12 is detachably connected to the second long plate 8 is the main functional component of the camera assembly, which is responsible for capturing images. The images captured by the visible light camera 12 can be combined with other laser scanning data to provide visual references for structural analysis and disease detection of roads and bridges, and can intuitively understand the actual situation of the scanning area, providing a basis for setting and adjusting scanning parameters. The images captured by the visible light camera 12 can be processed and merged with the three-dimensional model generated by laser scanning to enhance the visualization of the model, which helps inspectors to more intuitively understand the structural characteristics and potential problems of roads and bridges, and improve the efficiency and accuracy of detection. By comparing and analyzing images and laser data, deformation, cracks, rust and other diseases of roads and bridges can be more accurately judged. The triangle plate 13 is fixedly connected to the visible light camera 12, and the triangle plate 13 is fixedly connected to the second long plate 8, fixed between the visible light camera 12 and the second long plate 8, to stabilize the visible light camera 12 and prevent the visible light camera 12 from shaking or displacing during shooting.

[0092] Then, see Fig. 9In this embodiment, the extension assembly includes: a first supporting circular plate 14, a first round block 15, a first long slot 16, a first driving motor 17, a first rotating block 18, and a first cylinder 19. The first supporting circular plate 14 is detachably connected to the upper surface of the main barrel 2. The function of the first supporting circular plate 14 is to provide stable support for the entire extension assembly. The first round block 15 is fixedly connected to the first supporting circular plate 14. It may be firmly connected to the first supporting circular plate 14 by welding, screwing or other methods to ensure the structural stability of the extension assembly. The first long slot 16 is opened in the first round On the block 15, the function of the first long groove 16 is to allow the first rotating block 18 to rotate at a certain angle therein, the first drive motor 17 is installed on the first round block 15, the function of the first drive motor 17 is to provide power, the first rotating block 18 is rotatably connected to the first long groove 16, the first rotating block 18 can rotate in the first long groove 16 to achieve angle adjustment or specific action of the extension component, the first cylinder 19 is detachably connected to the first rotating block 18, allowing the user to replace or adjust the length or type of the first cylinder 19 as needed to adapt to different application scenarios.

[0093] Second, see Figure 8 In this embodiment, the extension component also includes: a second round block 20, a second long slot 21, a second drive motor 22, a second rotating block 23, a second cylinder 24, and a second fixed column 25. The second round block 20 is fixedly connected to the other end of the first cylinder 19. The second round block 20 is connected to the first cylinder 19 to provide stable support for the second part of the component. The second long slot 21 is opened on the second rotating block 23. The second drive motor 22 is installed on the second round block 20. The function of the second drive motor 22 is to provide power. The second rotating block 23 is rotatably connected to the second long slot 21. The second rotating block 23 can be rotated in the second long slot 21 to achieve the angle adjustment or specific action of the second part of the extension component. The second cylinder 24 is detachably connected to the second rotating block 23. The second cylinder 24 is similar to the first cylinder 19. This design allows the user to replace or adjust the length or type of the second cylinder 24 as needed. The second fixed column 25 is fixedly connected to the second cylinder 24. The second fixed column 25 is used to connect the first supporting long plate 26 to achieve the integration or expansion function of the extension component with other systems.

[0094] Again, see Figure 3In this embodiment, the adjustment component includes: a first supporting long plate 26, a shell 27, a first rotating ring 28, a first long column 29, a second long column 30, a long column support plate 31, a laser scanner 32, a first bevel gear 33, a bevel gear 34, a motor support plate 35, and a third drive motor 36. The first supporting long plate 26 is fixedly connected to the second fixed column 25. The first supporting long plate 26 provides a stable support foundation for the entire adjustment component. The shell 27 is detachably connected to the first supporting long plate 26. The function of the shell 27 is to facilitate maintenance and replacement of internal parts. The first rotating ring The first long column 29 is detachably connected to the first rotating ring 28, and the second long column 30 is detachably connected to the first long column 29. The first long column 29 and the second long column 30 are combined into an electric push rod. The electric push rod changes the position of the second long column on the first long column by powering on, so as to achieve the function of adjusting the height of the long column support plate 31. The long column support plate 31 is detachably connected to the upper surface of each second long column 30. The long column support plate 31 is used to support and fix other equipment or parts. The laser scanner 32 is detachably connected to the long column support plate On the board 31, the laser scanner 32 is used to perform precise measurement or scanning work. According to the actual situation of the bridge and the test requirements, a detailed test plan is formulated to determine the test scope, requirements and test process, etc. At the same time, a suitable laser scanner 32 and related software are selected to calibrate and debug the test equipment to ensure the accuracy and reliability of the test. The laser scanner 32 emits a laser beam to scan the bridge structure, obtain point cloud data on the bridge surface, and then generate a three-dimensional model of the bridge. The collected point cloud data is processed using relevant software to extract structural feature information and detect whether the bridge has problems such as disease and deformation. The first bevel gear 33 is installed on the first rotating ring 28, and the bevel gear 34 is meshed with the first bevel gear 33. By rotating the bevel gear 34, the first rotating ring 28 can be driven to rotate. The motor support plate 35 is fixedly connected to the lower surface of the housing 27, and the motor support plate 35 is used to support the third drive motor 36. The third drive motor 36 is installed on the motor support plate 35, and the bevel gear 34 is installed on the third drive motor 36. The third drive motor 36 is used to provide power to drive the bevel gear 34 to rotate.

[0095] In addition, see Figure 3In this embodiment, the adjustment component also includes: an upper plate 37, a first rotating shaft 38, a semicircular shaft 39, and a first semicircular ring 40. The upper plate 37 is rotatably connected to the inner surface of the first rotating ring 28, allowing the upper plate 37 to rotate relative to the first rotating ring 28. The first rotating shaft 38 is fixedly connected to the upper surface of the upper plate 37. The first rotating shaft 38 is used to connect the semicircular shaft 39 and other parts. The semicircular shaft 39 is fixedly connected to the upper surface of the first rotating shaft 38 as a support and rotation center of the first semicircular ring 40. Each first semicircular ring 40 is fixedly connected to the semicircular shaft 39 and can be used to support parts such as the semicircular support plate 42.

[0096] In addition, see Figure 3 In this embodiment, the adjustment component also includes: a semicircular rack 41, a semicircular support plate 42, a top plate 43, and a first rib plate 44. The semicircular rack 41 is fixedly connected to the semicircular shaft 39, and the semicircular rack 41 can be used to mesh with other gears or racks. Each semicircular support plate 42 is slidably connected to the first semicircular ring 40. The function of the semicircular support plate 42 is to allow sliding adjustment on the first semicircular ring 40. The top plate 43 is fixedly connected to the upper surface of each semicircular support plate 42. The function of the top plate 43 is to support the small turntable 45. The first rib plate 44 is fixedly connected between the semicircular support plate 42 and the top plate 43. The function of the first rib plate 44 is to enhance the stability and strength of the structure.

[0097] In addition, see Figure 3 In this embodiment, the rotating assembly includes: a small turntable 45, a turntable base 46, a mirror frame 47, an adjustment button 48, and a magnifying glass 49. The small turntable 45 is rotatably connected to the upper surface of the top plate 43. The function of the small turntable 45 is to facilitate the rotation of the magnifying glass 49. When the first rotating ring 28 rotates, the crankshaft 53 drives the small turntable 45 to rotate at the same time. The turntable base 46 is fixedly connected to the upper surface of the small turntable 45. The turntable base 46 provides a stable support for the small turntable 45. The mirror frame 47 is detachably connected to the upper surface of the turntable base 46, so that the operator can replace or clean the magnifying glass 49 as needed. The adjustment button 48 is detachably connected to the mirror frame 47. The function of the adjustment button 48 is to facilitate the replacement of the magnifying glass 49. The magnifying glass 49 is detachably connected to the inner surface of the mirror frame 47. The function of the magnifying glass 49 is to change the degree of laser focusing.

[0098] In addition, see Figure 5 In this embodiment, the rotating assembly also includes: a square plate 50, a worm 51, and a fourth drive motor 52. Each of the square plates 50 is fixedly connected to the lower surface of the bottom plate. The square plate 50 provides support for the worm 51. The worm 51 is rotatably connected between the square plates 50. The worm 51 is driven by the fourth drive motor 52 to rotate and generate torque. The fourth drive motor 52 is installed on the other side of one of the square plates 50. The function of the fourth drive motor 52 is to provide power.

[0099] Finally, see Figure 3 In this embodiment, the rotating assembly also includes: a crankshaft 53, a square plate 54, and a connecting shaft 55. One end of the crankshaft 53 is fixedly connected to the small turntable 45. The function of the crankshaft 53 is to drive the magnifying glass 49 to rotate at the same time when the first rotating ring 28 rotates. When the angle of the magnifying glass 49 needs to be changed, the crankshaft 53 will change the angle through the connecting shaft 55 under the restriction of the square plate 54. All the square plates 54 are rotatably connected to the first rotating ring 28, and the connecting shaft 55 is fixedly connected to the crankshaft 53, and the connecting shaft 55 is rotatably connected between the square plates 54.

[0100] Working principle:

[0101] When using the laser scanning device for monitoring the risk of road and bridges, the operator first places the laser scanning device for monitoring the risk of road and bridges at the position where the bridge needs to be inspected, and first turns on the first drive motor 17. The rotation of the first drive motor 17 drives the first rotating block 18 to rotate. The movement of the first rotating block 18 drives the first cylinder 19 to move. The telescopic movement of the first cylinder 19 can drive the second cylinder 24 to move. The second drive motor 22 rotates to drive the second cylinder 24 to move. The second cylinder 24 can also move telescopically. The second cylinder 24 drives the first supporting long plate 26 to move, so as to determine the scanning position of different bridges. The first supporting long plate 26 drives the outer shell 27 to move. The operator turns on the third drive motor 36 on the outer shell 27. The rotation of the third drive motor 36 drives the bevel gear 34 to rotate. The bevel gear 34 meshes with the first bevel gear 33. The first bevel gear 33 drives The first rotating ring 28 rotates, and the rotation of the first rotating ring 28 will drive the first long column 29 to rotate. The first long column 29 drives the laser scanner 32 to move, so as to move the position of the laser scanner 32. The fourth driving motor 52 is turned on. The fourth driving motor 52 rotates to drive the worm 51 to rotate. The rotation of the worm 51 drives the semicircular rack 41 to move. The rotation of the semicircular rack 41 drives the semicircular shaft 39 to rotate. The rotation of the semicircular shaft 39 drives the semicircular support plate 42 to rotate. The semicircular rack 41 is a fixed part. The worm 51 rotates on the semicircular rack 41, driving the top plate 43 to rotate. The rotation of the top plate 43 drives the small turntable 45 to rotate. The rotation of the small turntable 45 drives the turntable base 46 to rotate. The turntable base 46 drives the magnifying glass 49 to rotate. The magnifying glass 49 can change the laser irradiation angle. The focal length of the laser beam can be changed by changing the angle of the magnifying glass 49, so that the laser detection is more accurate.

[0102] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser scanning device for road and bridge risk monitoring, comprising a base (1), characterized in that: Also includes: A main drum (2), wherein the main drum (2) is arranged on the upper surface of the base (1); A supporting cylinder (3), wherein the supporting cylinder (3) is arranged on the lower surface of the main cylinder (2); Wheels (4), each of the wheels (4) is arranged on the supporting drum (3); a handle (5), wherein the handle (5) is arranged on the supporting barrel (3); A three-color lamp (6), the three-color lamp (6) being arranged on the upper surface of the main barrel (2); A camera assembly, wherein the camera assembly is arranged on the main barrel (2); An extension component, the extension component being arranged on the upper surface of the main barrel (2); an adjusting component, wherein the adjusting component is arranged on the extending component; A rotating assembly is arranged on the adjusting assembly.

2. A laser scanning device for road and bridge risk monitoring according to claim 1, characterized in that: The camera assembly comprises: a first long plate (7), wherein the first long plate (7) is arranged on the main barrel (2); a second long plate (8), the second long plate (8) being arranged on the first long plate (7); A semicircular groove (9), wherein the semicircular groove (9) is provided on the second long plate (8); A first hexagonal bolt (10), the first hexagonal bolt (10) being mounted on the second long plate (8) and the first long plate (7); A second hexagonal bolt (11), the second hexagonal bolt (11) being mounted on the semicircular groove (9), and the second hexagonal bolt (11) being mounted on the first long plate (7); a visible light camera (12), wherein the visible light camera (12) is arranged on the second long board (8); A triangular plate (13), wherein the triangular plate (13) is arranged on the visible light camera (12), and the triangular plate (13) is arranged on the second long plate (8).

3. A laser scanning device for road and bridge risk monitoring according to claim 2, characterized in that: The extension assembly comprises: a first supporting circular plate (14), the first supporting circular plate (14) being arranged on the upper surface of the main cylinder (2); A first round block (15), wherein the first round block (15) is arranged on the first supporting round plate (14); A first long groove (16), wherein the first long groove (16) is formed on the first round block (15); a first drive motor (17), wherein the first drive motor (17) is mounted on the first round block (15); A first rotating block (18), wherein the first rotating block (18) is arranged on the first long groove (16); A first cylinder (19), wherein the first cylinder (19) is arranged on the first rotating block (18).

4. A laser scanning device for road and bridge risk monitoring according to claim 3, characterized in that: The extension assembly also includes: a second round block (20), the second round block (20) being arranged at the other end of the first cylinder (19); A second long groove (21), wherein the second long groove (21) is formed on the second rotating block (23); a second drive motor (22), the second drive motor (22) being mounted on the second round block (20); A second rotating block (23), wherein the second rotating block (23) is arranged on the second long groove (21); a second cylinder (24), wherein the second cylinder (24) is arranged on the second rotating block (23); A second fixing column (25), wherein the second fixing column (25) is arranged on the second cylinder (24).

5. A laser scanning device for road and bridge risk monitoring according to claim 4, characterized in that: The adjustment component comprises: A first supporting long plate (26), wherein the first supporting long plate (26) is arranged on the second fixing column (25); A shell (27), wherein the shell (27) is arranged on the first supporting long plate (26); a first rotating ring (28), the first rotating ring (28) being arranged on the upper surface of the housing (27); First long columns (29), each of the first long columns (29) is arranged on the first rotating ring (28); Second long columns (30), each of the second long columns (30) being arranged on the first long columns (29); A long column support plate (31), wherein the long column support plate (31) is arranged on the upper surface of each of the second long columns (30); A laser scanner (32), wherein the laser scanner (32) is arranged on the long column support plate (31); A first bevel tooth (33), wherein the first bevel tooth (33) is mounted on the first rotating ring (28); a helical gear (34), the helical gear (34) being meshed with the first helical gear (33); a motor support plate (35), wherein the motor support plate (35) is arranged on the lower surface of the housing (27), A third drive motor (36), the third drive motor (36) is mounted on the motor support plate (35), and the bevel gear (34) is mounted on the third drive motor (36).

6. A laser scanning device for road and bridge risk monitoring according to claim 5, characterized in that: The adjustment component also includes: an upper plate (37), the upper plate (37) being arranged on the inner surface of the first rotating ring (28); a first rotating shaft (38), wherein the first rotating shaft (38) is arranged on the upper surface of the upper plate (37); A semicircular shaft (39), wherein the semicircular shaft (39) is arranged on the upper surface of the first rotating shaft (38); First semicircular rings (40), each of the first semicircular rings (40) is arranged on the semicircular shaft (39).

7. A laser scanning device for road and bridge risk monitoring according to claim 6, characterized in that: The adjustment component also includes: A semicircular gear rack (41), wherein the semicircular gear rack (41) is arranged on the semicircular shaft (39); Semicircular support plates (42), each of the semicircular support plates (42) is arranged on the first semicircular ring (40); A top plate (43), the top plate (43) being arranged on the upper surface of each of the semicircular support plates (42); A first rib plate (44), wherein the first rib plate (44) is arranged between the semicircular support plate (42) and the top plate (43).

8. The laser scanning device for road and bridge risk monitoring according to claim 7, characterized in that: The rotating assembly comprises: A small rotating disk (45), wherein the small rotating disk (45) is arranged on the upper surface of the top plate (43); A turntable base (46), wherein the turntable base (46) is arranged on the upper surface of the small turntable (45); A mirror frame (47), wherein the mirror frame (47) is arranged on the upper surface of the turntable base (46); an adjustment button (48), wherein the adjustment button (48) is arranged on the mirror frame (47); A magnifying glass (49), wherein the magnifying glass (49) is arranged on the inner surface of the mirror frame (47).

9. A laser scanning device for road and bridge risk monitoring according to claim 8, characterized in that: The rotating assembly also includes: Square plates (50), each of the square plates (50) is arranged on the lower surface of the bottom plate; A worm (51), wherein the worm (51) is arranged between the square plates (50); A fourth drive motor (52), the fourth drive motor (52) being mounted on the other side of one of the square plates (50).

10. A laser scanning device for road and bridge risk monitoring according to claim 9, characterized in that: The rotating assembly also includes: A crankshaft (53), one end of which is arranged on the small rotating disk (45); Square plates (54), each of the square plates (54) is arranged on the first rotating ring (28); A connecting shaft (55), wherein the connecting shaft (55) is arranged on the crankshaft (53), and the connecting shaft (55) is arranged between the square plates (54).

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