Bridge crack measuring device for municipal bridge engineering

Abstract

The invention belongs to the technical field of measuring devices, and particularly relates to a bridge crack measuring device for municipal bridge engineering, which comprises a stabilizing plate and a detection assembly, an angle adjusting mechanism is arranged on the outer side of the detection assembly and is used for adjusting the angle of the detection assembly, and a position adjusting mechanism is fixedly mounted at the top end of the angle adjusting mechanism and is used for adjusting the position of the detection assembly. According to the part, the position of the detection assembly can be accurately regulated and controlled from different directions through cooperative cooperation of the driving mechanism and the adjusting mechanism, the sliding fit of a guide column and a sliding seat ensures the moving stability of the part, and the meshed transmission of a worm and a worm gear and the meshed transmission of a gear and a toothed plate improve the adjusting precision. By means of the multi-direction and high-precision adjustment mode, the adaptive capacity of the device to the cracks in different positions is effectively enhanced, a reliable foundation is provided for subsequent angle adjustment and crack detection work, and then the overall accuracy and efficiency of bridge crack measurement are improved.

Description

Technical Field

[0001] This invention belongs to the field of measuring device technology, specifically a bridge crack measuring device for municipal bridge engineering. Background Technology

[0002] As a crucial infrastructure component of municipal engineering, bridges are prone to developing cracks and other defects on their structural surfaces due to long-term use, influenced by vehicle loads and environmental factors. These cracks not only affect the aesthetics of the bridge but may also weaken its structural strength and durability, and even threaten its safe operation. Therefore, accurately measuring relevant parameters of bridge cracks, such as width, depth, and length, is essential for bridge safety assessment and maintenance management.

[0003] The existing device can only measure bridge cracks at certain locations, which is a single function. During use, manual measurement is slow and inaccurate, and requires a lot of time. It is not practical and cannot be adapted to actual working conditions.

[0004] Therefore, the present invention provides a bridge crack measurement device for municipal bridge engineering. Summary of the Invention

[0005] In order to overcome the shortcomings of existing technologies and solve the technical problems raised in the background art.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: A bridge crack measuring device for municipal bridge engineering, comprising a stabilizing plate and a detection component, wherein an angle adjustment mechanism is provided on the outer side of the detection component for adjusting the angle of the detection component, and a position adjustment mechanism is fixedly installed at the top of the angle adjustment mechanism for adjusting the position of the detection component, wherein a first driving mechanism and a second driving mechanism are respectively provided at the top of the position adjustment mechanism, the second driving mechanism is fixedly installed inside the first driving mechanism, and the first and second driving mechanisms are used to drive the position adjustment mechanism, the first driving mechanism is fixedly installed on the lower surface of the stabilizing plate, and a protective box is fixedly installed on the lower surface of the stabilizing plate for protecting the first and second driving mechanisms, and support legs are fixedly installed at the four corners of the stabilizing plate facing the ground, and a fifth mounting plate is fixedly installed on the front support leg of the stabilizing plate, and a cleaning mechanism is fixedly installed on the lower surface of the fifth mounting plate for cleaning debris in the crack.

[0007] Preferably, the first driving mechanism includes a first mounting plate and a second mounting plate symmetrically fixedly mounted on the lower surface of the stabilizing plate. A first guide post is symmetrically fixedly mounted between the first mounting plate and the second mounting plate. A first servo motor is fixedly mounted on one side of the first mounting plate. A first worm gear is fixedly mounted on the output end of the first servo motor through a coupling. The first worm gear is rotatably mounted on the first mounting plate and the second mounting plate. A first base is symmetrically fixedly mounted on the surface of the first worm gear, and the first base is fixedly mounted on the lower surface of the stabilizing plate. The second mounting plate is fixedly connected to the second driving mechanism.

[0008] Preferably, the second drive mechanism includes a second servo motor fixedly mounted on one side of the second mounting plate. The output end of the second servo motor is fixedly mounted with a lead screw via a coupling. The lead screw is rotatably mounted on the first mounting plate and the second mounting plate. The first worm gear and the lead screw are symmetrically arranged. A second base is symmetrically fixedly mounted on the surface of the lead screw, and the second base is fixedly mounted on the lower surface of the stabilizing plate.

[0009] Preferably, the position adjustment mechanism includes a first slide block slidably mounted on the surface of a first guide post, a first rotating shaft rotatably mounted inside the first slide block, a worm gear fixedly mounted at the top end of the first rotating shaft, the worm gear meshing with a first worm, a gear fixedly mounted at the end of the first rotating shaft away from the worm gear, a connecting plate sleeved on the surface of the first rotating shaft, a slide cylinder fixedly mounted at one end of the connecting plate, the slide cylinder threadedly connected to the surface of a lead screw, a third mounting plate and a fourth mounting plate symmetrically fixedly mounted on the lower surface of the first slide block, a toothed plate slidably mounted inside the third mounting plate, a second guide post fixedly mounted inside the fourth mounting plate, a first fixing plate fixedly mounted at both ends of the second guide post, one end of the first fixing plate fixedly connected to the toothed plate, the toothed plate meshing with a gear, a second slide block fixedly mounted on the surface of the second guide post, and one end of the second slide block fixedly mounted at the bottom end of the toothed plate, the second slide block being fixedly connected to an angle adjustment mechanism.

[0010] Preferably, the angle adjustment mechanism includes a first mounting box fixedly installed at the bottom of the second slide block. A first arc-shaped slide rail is symmetrically fixedly installed on the inner wall of the first mounting box. A first slide groove is symmetrically opened on the first mounting box. A first slider is fixedly installed on the surface of each of the first arc-shaped slide rails. A third guide post is fixedly installed on the outer side of each of the first sliders, and the third guide post is slidably installed in the first slide groove. A placement plate is fixedly installed between the inner sides of the first sliders. The placement plate is fixedly installed with the detection component. A second slide rail is fixedly installed on one side of the placement plate. A sliding plate is slidably installed within the second slide rail. The sliding plate is adapted to the placement plate and is used to push the placement plate to slide along the first arc-shaped slide rail. A second fixing plate is fixedly installed on the outer surface of one side of the first mounting box. An electric telescopic rod is fixedly installed on the second fixing plate. The output end of the electric telescopic rod passes through the second fixing plate and is fixedly connected to the sliding plate.

[0011] Preferably, the cleaning mechanism includes a mounting frame symmetrically fixedly mounted on the lower surface of the fifth mounting plate. A third motor is fixedly mounted on one side of the mounting frame, and a drive shaft is fixedly mounted on the output end of the third motor. The drive shaft is rotatably mounted on the mounting frame. A sleeve is fixedly mounted on one end of the drive shaft. A threaded rod and a second rotating shaft are rotatably mounted inside the sleeve. A threaded block is threadedly connected to the surface of the threaded rod. A transmission column is fixedly mounted on the surface of the second rotating shaft. The threaded block is fixedly connected to the transmission column, and the transmission column is located inside the sleeve. A swing crank is fixedly mounted on one end of the transmission column. A fourth guide column is fixedly mounted on the bottom end of the swing crank. A first movable ball is fixedly mounted on one end of the fourth guide column. A second movable ball is engaged with the surface of the first movable ball. A sliding column is fixedly mounted on the surface of the second movable ball. A cleaning brush is fixedly mounted on the surface of the sliding column. A limit box is fixedly mounted on one side of the mounting frame, and the sliding column is slidably mounted inside the limit box. A limit groove is formed on the limit box, and the limit groove is adapted to the cleaning brush.

[0012] Preferably, both ends of the threaded rod are fixedly equipped with adjusting handles for adjusting the position of the threaded block on the threaded rod.

[0013] Preferably, a push rod is fixedly installed on one side of the stabilizing plate, and the surface of the push rod is provided with a rubber anti-slip pad.

[0014] Preferably, each of the outriggers is fixedly equipped with casters.

[0015] The beneficial effects of this invention are as follows: 1. The bridge crack measuring device for municipal bridge engineering described in this invention, through the coordinated operation of the drive mechanism and the adjustment mechanism, can precisely control the position of the detection component from different directions. The sliding cooperation between the guide column and the slide ensures the smoothness of the component movement, while the meshing transmission of the worm and worm wheel, and the gear and toothed plate improves the adjustment accuracy, enabling the detection component to accurately reach the location of the crack. This multi-directional, high-precision adjustment method effectively enhances the device's adaptability to cracks in different locations, providing a reliable foundation for subsequent angle adjustment and crack detection work, thereby improving the overall accuracy and efficiency of bridge crack measurement.

[0016] 2. The bridge crack measuring device for municipal bridge engineering described in this invention features an angle adjustment mechanism that drives a sliding plate via an electric telescopic rod. This, combined with the arc-shaped sliding structure of the slide rail and slider, allows for flexible adjustment of the angle of the detection component. The limiting effect of the arc-shaped slide rail and guide column ensures the stability and accuracy of the angle adjustment process, enabling the detection component to be precisely aligned with cracks at different angles. This adjustment method is highly adaptable, meeting diverse crack measurement needs and providing a good angle basis for subsequent testing. It effectively improves the device's ability to measure complex cracks and enhances data accuracy.

[0017] 3. The bridge crack measuring device for municipal bridge engineering described in this invention uses a third motor to drive a transmission component, converting the oscillating motion into the reciprocating motion of the cleaning brush. This efficiently cleans debris from bridge cracks. The movable ball structure flexibly transmits the motion, and the limiting component ensures a stable and orderly cleaning process. By adjusting the handle to change the length of the transmission column, the oscillation amplitude and frequency of the cleaning brush can be flexibly adjusted to meet the cleaning needs of cracks with different amounts of debris. This ensures cleaning effectiveness while avoiding resource waste, providing a clean measurement environment for subsequent crack detection and improving detection accuracy. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a three-dimensional view of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the first driving mechanism, the second driving mechanism, and the position adjustment mechanism of the present invention; Figure 4 This is the present invention. Figure 3 Enlarged view of point A in the middle; Figure 5 This is an exploded view of the first driving mechanism, the second driving mechanism, and the position adjustment mechanism of the present invention; Figure 6 This is an exploded view of the angle adjustment mechanism of the present invention; Figure 7 This is a schematic diagram of the cleaning mechanism of the present invention; Figure 8 This is an exploded view of the cleaning mechanism of the present invention; In the diagram: 1. Stabilizing plate; 2. Support leg; 3. First drive mechanism; 31. First servo motor; 32. First base; 33. First mounting plate; 34. Second mounting plate; 35. First worm gear; 36. First guide post; 4. Second drive mechanism; 41. Second servo motor; 42. Second base; 43. Lead screw; 5. Position adjustment mechanism; 51. First slide; 52. First rotating shaft; 53. Worm gear; 54. Gear; 55. Third mounting plate; 56. Fourth mounting plate; 57. First fixing plate; 58. Toothed plate; 59. Second guide post; 510. Second slide; 511. Connecting plate; 512. Slide cylinder; 6. Angle adjustment mechanism; 61. First mounting box; 62. First slide groove; 63. 64. Third guide post; 65. First arc-shaped slide rail; 66. First slider; 67. Placement plate; 68. Second slide rail; 69. Slide plate; 60. Electric telescopic rod; 610. Second fixing plate; 7. Fifth mounting plate; 81. Cleaning mechanism; 82. Mounting frame; 83. Third motor; 84. Drive shaft; 85. Sleeve; 86. Threaded rod; 87. Second rotating shaft; 88. Threaded block; 89. Transmission column; 80. Swing crank; 810. Fourth guide post; 811. First movable ball; 812. Second movable ball; 813. Sliding column; 814. Cleaning brush; 815. Limit box; 816. Limit groove; 9. Universal wheel; 10. Push rod; 11. Detection component; 12. Adjustment handle; 13. Protective box. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0021] like Figures 1 to 8As shown in the embodiment of the present invention, a bridge crack measuring device for municipal bridge engineering includes a stabilizing plate 1 and a detection component 11. An angle adjustment mechanism 6 is provided on the outer side of the detection component 11 for adjusting the angle of the detection component 11. A position adjustment mechanism 5 is fixedly installed at the top of the angle adjustment mechanism 6 for adjusting the position of the detection component 11. A first driving mechanism 3 and a second driving mechanism 4 are respectively provided at the top of the position adjustment mechanism 5. The second driving mechanism 4 is fixedly installed inside the first driving mechanism 3, and the first driving mechanism 3 and the second driving mechanism 4 are used to drive the position adjustment mechanism 5. The first driving mechanism 3 is fixedly installed on the lower surface of the stabilizing plate 1. A protective box 13 is fixedly installed on the lower surface of the stabilizing plate 1 for protecting the first driving mechanism 3 and the second driving mechanism 4. Support legs 2 are fixedly installed at the four corners of the stabilizing plate 1 facing the ground. Universal wheels 9 are fixedly installed on each support leg 2. A fifth mounting plate 7 is fixedly installed on the front support leg 2 of the stabilizing plate 1. A cleaning mechanism 8 is fixedly installed on the lower surface of the fifth mounting plate 7 for cleaning debris in the crack.

[0022] Specifically, when the bridge crack measuring device is in operation, firstly, with the help of the casters 9 on the four corner legs 2 of the stabilizing plate 1, the device can be easily moved to the area of ​​the municipal bridge to be inspected. Then, the cleaning mechanism 8 on the lower surface of the fifth mounting plate 7 is activated to clean the debris at the bridge crack, creating good conditions for subsequent accurate inspection. After cleaning, the protective box 13 protects the internal mechanisms of the first drive mechanism 3 and the second drive mechanism 4. The bottom end of the protective box 13 has a through groove through which the position adjustment mechanism 5 passes. The first drive mechanism 3 and the second drive mechanism 4 start to operate, and the two work together to adjust the position adjustment mechanism 5. Under the drive of the two drive mechanisms, the position adjustment mechanism 5 can flexibly adjust the horizontal position of the detection component 11, so that the detection component 11 gradually approaches the location of the bridge crack. When the horizontal position of the detection component 11 is adjusted to the correct position, the angle adjustment mechanism 6 located on the outside of the detection component 11 is activated. The angle adjustment mechanism 6 can precisely adjust the angle of the detection component 11, so that the detection component 11 can be aligned with the bridge crack at the best angle, thereby ensuring that the subsequent measurement of the crack is more accurate and comprehensive, and providing reliable data support for the assessment and maintenance of cracks in municipal bridge projects. The detection component includes a high-definition industrial camera or camera, a supplementary light, and a laser rangefinder sensor.

[0023] like Figures 3 to 5As shown, the first drive mechanism 3 includes a first mounting plate 33 and a second mounting plate 34 symmetrically fixedly mounted on the lower surface of the stabilizing plate 1. A first guide post 36 is symmetrically fixedly mounted between the first mounting plate 33 and the second mounting plate 34. A first servo motor 31 is fixedly mounted on one side of the first mounting plate 33. A first worm gear 35 is fixedly mounted on the output end of the first servo motor 31 through a coupling. The first worm gear 35 is rotatably mounted on the first mounting plate 33 and the second mounting plate 34. A first base 32 is symmetrically fixedly mounted on the surface of the first worm gear 35, and the first base 32 is fixedly mounted on the lower surface of the stabilizing plate 1. The second mounting plate 34 is fixedly connected to the second drive mechanism 4. The second drive mechanism 4 includes a second servo motor 41 fixedly installed on one side of the second mounting plate 34. The output end of the second servo motor 41 is fixedly installed with a lead screw 43 through a coupling. The lead screw 43 is rotatably installed on the first mounting plate 33 and the second mounting plate 34. The first worm gear 35 is symmetrically arranged with the lead screw 43. The surface of the lead screw 43 is symmetrically fixedly installed with a second base 42, and the second base 42 is fixedly installed on the lower surface of the stabilizing plate 1. The position adjustment mechanism 5 includes a first slide block 51 slidably mounted on the surface of the first guide post 36. A first rotating shaft 52 is rotatably mounted inside the first slide block 51. A worm gear 53 is fixedly mounted at the top of the first rotating shaft 52 and meshes with the first worm 35. A gear 54 is fixedly mounted at the end of the first rotating shaft 52 away from the worm gear 53. A connecting plate 511 is sleeved on the surface of the first rotating shaft 52. A slide cylinder 512 is fixedly mounted at one end of the connecting plate 511 and threadedly connected to the surface of the lead screw 43. The lower surface of the first slide block 51 is symmetrically fixed with... The device is equipped with a third mounting plate 55 and a fourth mounting plate 56. A toothed plate 58 is slidably installed inside the third mounting plate 55. A second guide post 59 is fixedly installed inside the fourth mounting plate 56. A first fixing plate 57 is fixedly installed at both ends of the second guide post 59. One end of the first fixing plate 57 is fixedly connected to the toothed plate 58. The toothed plate 58 is meshed with a gear 54. A second slide block 510 is fixedly installed on the surface of the second guide post 59. One end of the second slide block 510 is fixedly installed at the bottom end of the toothed plate 58. The second slide block 510 is fixedly connected to the angle adjustment mechanism 6.

[0024] Specifically, firstly, the first drive mechanism 3 starts operating. A first mounting plate 33 and a second mounting plate 34 are symmetrically fixed to the lower surface of the stabilizing plate 1, with first guide posts 36 symmetrically installed between them, providing a guiding foundation for subsequent component sliding. When the first servo motor 31 on one side of the first mounting plate 33 starts, its output drives the first worm gear 35 to rotate via a coupling. The first worm gear 35 can rotate smoothly on the first mounting plate 33 and the second mounting plate 34. Simultaneously, the first base 32 provides stable support for the first worm gear 35, ensuring its stability during rotation. Next, the second drive mechanism 4 also starts operating, with the second servo motor on one side of the second mounting plate 34... 41 is running. The output end of the second servo motor 41 drives the lead screw 43 to rotate through a coupling. The lead screw 43 is also rotatably mounted on the first mounting plate 33 and the second mounting plate 34. The second base 42 supports and fixes the lead screw 43. The first worm gear 35 and the lead screw 43 are symmetrically distributed. This layout creates conditions for subsequent transmission with the position adjustment mechanism 5. Then, the position adjustment mechanism 5 plays its role. The first slide 51 is slidably mounted on the surface of the first guide post 36. When the first servo motor 31 drives the first worm gear 35 to rotate, the worm wheel 53 meshing with the first worm gear 35 will rotate accordingly. The worm wheel 53 is fixed at the top of the first rotating shaft 52, thereby driving the first rotating shaft. When shaft 52 rotates, gear 54 at the end of shaft 52 furthest from worm gear 53 also rotates synchronously. Since gear 54 meshes with gear plate 58, the rotation of gear 54 drives gear plate 58 to move. Both ends of gear plate 58 are connected to second guide post 59 via first fixed plate 57. As gear plate 58 moves, second slide block 510 on the surface of second guide post 59 also moves. Second slide block 510 is fixedly connected to angle adjustment mechanism 6, thus achieving position adjustment of angle adjustment mechanism 6 and detection component 11 in one direction. Simultaneously, second servo motor 41 drives lead screw 43 to rotate. The surface of lead screw 43 is threadedly connected to slide cylinder 512. Fixed at one end of the connecting plate 511, the connecting plate 511 is sleeved on the surface of the first rotating shaft 52. When the lead screw 43 rotates, the slide cylinder 512 will move along the length direction of the lead screw 43, thereby driving the connecting plate 511, the first rotating shaft 52 and the first slide block 51 and other components to slide along the first guide post 36, thereby realizing the position adjustment mechanism 6 and the detection component in another direction. By driving from different directions by the first drive mechanism 3 and the second drive mechanism 4 respectively, the position adjustment mechanism 5 can be precisely controlled, so that the detection component 11 can accurately reach the location of the bridge crack, making full preparation for subsequent angle adjustment and crack detection work.

[0025] like Figures 5 to 6As shown, the angle adjustment mechanism 6 includes a first mounting box 61 fixedly installed at the bottom of the second slide block 510. First arc-shaped slide rails 64 are symmetrically fixedly installed on the inner wall of the first mounting box 61. First slide grooves 62 are symmetrically opened on the first mounting box 61. First sliders 65 are fixedly installed on the surface of each of the first arc-shaped slide rails 64. Third guide posts 63 are fixedly installed on the outer sides of each of the first sliders 65, and the third guide posts 63 are slidably installed within the first slide grooves 62. A placement plate 66 is fixedly installed between the inner sides of the first sliders 65. The first mounting box 61 is fixedly installed with the detection component 11. A second slide rail 67 is fixedly installed on one side of the placement plate 66. A slide plate 68 is slidably installed inside the second slide rail 67. The slide plate 68 is adapted to the placement plate 66 and is used to push the placement plate 66 to slide along the first arc-shaped slide rail 64. A second fixing plate 610 is fixedly installed on one side of the outer surface of the first mounting box 61. An electric telescopic rod 69 is fixedly installed on the second fixing plate 610. The output end of the electric telescopic rod 69 passes through the second fixing plate 610 and is fixedly connected to the slide plate 68.

[0026] Specifically, when the angle adjustment mechanism 6 is working, it is connected to the position adjustment mechanism 5 via the second slide block 510. Its core component, the first mounting box 61, is fixed to the bottom of the second slide block 510, providing a mounting base for the entire mechanism. When it is necessary to adjust the angle of the detection component 11, the electric telescopic rod 69 on the second fixed plate 610 on one side of the outer surface of the first mounting box 61 is activated. The output end of the electric telescopic rod 69 pushes the slide plate 68 to move. The slide plate 68 is slidably installed in the second slide rail 67 on one side of the placement plate 66 and is adapted to the placement plate 66. Therefore, the movement of the slide plate 68 will drive the placement plate 66 to move. The two sides of the placement plate 66 are connected to the first slider 65. The first arc-shaped slide rail 64 is connected to the inner wall of the first mounting box 61. The third guide post 63 on the outer side of the first slider 65 is embedded in the first slide groove 62 on the first mounting box 61. When the placement plate 66 is pushed, the first slider 65 slides along the first arc-shaped slide rail 64, and the third guide post 63 slides synchronously in the first slide groove 62, which plays a guiding and limiting role, ensuring that the placement plate 66 moves stably along the arc-shaped trajectory. Since the detection component 11 is fixedly installed on the placement plate 66, the arc-shaped sliding of the placement plate 66 will drive the detection component 11 to complete the angle adjustment, and finally realize the accurate alignment of the detection component 11 with the bridge crack, meeting the measurement needs of cracks at different angles.

[0027] like Figures 7 to 8As shown, the cleaning mechanism 8 includes a mounting frame 81 symmetrically fixedly mounted on the lower surface of the fifth mounting plate 7. A third motor 82 is fixedly mounted on one side of the mounting frame 81. A drive shaft 83 is fixedly mounted on the output end of the third motor 82. The drive shaft 83 is rotatably mounted on the mounting frame 81. A sleeve 84 is fixedly mounted on one end of the drive shaft 83. A threaded rod 85 and a second rotating shaft 86 are rotatably mounted inside the sleeve 84. A threaded block 87 is threadedly connected to the surface of the threaded rod 85. A transmission column 88 is fixedly mounted on the surface of the second rotating shaft 86. The threaded block 87 is fixedly connected to the transmission column 88, and the transmission column 88 is located inside the sleeve 84. A swing crank 89 is fixedly mounted on one end of the transmission column 88. A fourth guide post 810 is fixedly installed at the bottom of the crank 89. A first movable ball 811 is fixedly installed at one end of the fourth guide post 810. A second movable ball 812 is engaged with the surface of the first movable ball 811. A sliding post 813 is fixedly installed on the surface of the second movable ball 812. A cleaning brush 814 is fixedly installed on the surface of the sliding post 813. A limit box 815 is fixedly installed on one side of the mounting frame 81, and the sliding post 813 is slidably installed in the limit box 815. A limit groove 816 is opened on the limit box 815, which is adapted to the cleaning brush 814. Adjusting handles 12 are fixedly installed at both ends of the threaded rod 85 for adjusting the position of the threaded block 87 on the threaded rod 85.

[0028] Specifically, when the cleaning mechanism 8 is working, it uses the mounting frame 81 as the basic supporting component, symmetrically fixed to the lower surface of the fifth mounting plate 7. The cleaning of debris from the bridge gaps is completed through the coordinated movement of each component. When cleaning is required, the third motor 82 on one side of the mounting frame 81 is started. The output end of the third motor 82 drives the drive shaft 83 to rotate on the mounting frame 81. The sleeve 84 at one end of the drive shaft 83 rotates accordingly. The second rotating shaft 86 inside the sleeve 84 is fixedly connected to the transmission column 88. When the sleeve 84 rotates, it drives the transmission column 88 to rotate synchronously through the second rotating shaft 86, thereby causing the swing crank 89 at one end of the transmission column 88 to perform a deflection swing motion. The fourth guide post 810 at the bottom of the swing crank 89 is engaged with the second movable ball 812 through the first movable ball 811. The structure of the first movable ball 811 and the second movable ball 812 allows for flexible transmission of motion, converting the deflection swing of the swing crank 89 into... The sliding column 813 is slidably installed in the limiting box 815 on one side of the mounting frame 81 for reciprocating motion. The cleaning brush 814 fixed on its surface is adapted to the limiting groove 816 on the limiting box 815. Therefore, when the sliding column 813 reciprocates, it will drive the cleaning brush 814 through the limiting groove 816 to clean the debris in the bridge gap. In addition, the adjusting handles 12 at both ends of the threaded rod 85 can adjust the position of the threaded block 87 on the threaded rod 85. Since the threaded block 87 is fixedly connected to the transmission column 88, the change of the position of the threaded block 87 will adjust the effective length of the transmission column 88, thereby changing the swing amplitude and period of the swing crank 89. When the effective length of the transmission column 88 changes, the time for the swing crank 89 to complete one swing changes, ultimately realizing the adjustment of the working frequency of the cleaning brush 814 to adapt to the cleaning needs of different amounts of debris in the gap, ensuring the cleaning effect while avoiding resource waste.

[0029] like Figure 1 As shown, a push rod 10 is fixedly installed on one side of the stabilizing plate 1, and a rubber anti-slip pad is provided on the surface of the push rod 10.

[0030] Specifically, the push rod 10 provides a convenient fulcrum for moving the device. Workers can easily move the entire device by pushing the push rod 10 without bending over or using other tools, which greatly reduces the difficulty of moving the device. Especially when the inspection position needs to be adjusted frequently during bridge inspection, it can significantly improve the moving efficiency. From the perspective of safety, the rubber anti-slip pad on the surface of the push rod 10 can effectively increase the friction between the hand and the push rod 10. Even when the hand is sweaty or the bridge surface is wet, it can prevent slippage during the pushing process and ensure the stability of the operator's control of the device.

[0031] Working principle: Between the first mounting plate 33 and the second mounting plate 34 on the lower surface of the stabilizing plate 1, the symmetrically mounted first guide posts 36 provide guidance for the sliding of the components. When the first drive mechanism 3 is started, the first servo motor 31 on one side of the first mounting plate 33 drives the first worm gear 35 to rotate through the coupling, and the first base 32 ensures its stable rotation. At the same time, the second servo motor 41 on the second mounting plate 34 drives the lead screw 43 to rotate, and the second base 42 supports the lead screw 43. The first worm gear 35 and the lead screw 43 are symmetrically distributed. In the position adjustment mechanism 5, the first slide block 51 is slidably mounted on the first guide post 36. When the first worm gear 35 rotates, the worm wheel 53 meshing with it drives the first rotating shaft 52 to rotate, causing the gear 54 to drive the toothed plate 58 to move. The second slide block 510 on the second guide post 59 drives the angle adjustment mechanism 6 to complete the position adjustment in one direction. At the same time, the rotation of the lead screw 43 drives the slide cylinder 512 to move, and through the connecting plate 511, it drives the first slide block 51 to slide along the first guide post 36, thereby realizing the position adjustment of the angle adjustment mechanism 6 in another direction, and finally making the detection component 11 accurately close to the crack. Angle adjustment mechanism 6 is connected to position adjustment mechanism 5 via second slide block 510, and first mounting box 61 is fixed to the bottom of second slide block 510. When the angle of detection component 11 needs to be adjusted, electric telescopic rod 69 on the outside of first mounting box 61 pushes slide plate 68. Slide plate 68 slides in second slide rail 67 of placement plate 66 and drives placement plate 66 to move. First sliders 65 on both sides of placement plate 66 slide along first arc-shaped slide rail 64, and third guide posts 63 on the outside move synchronously in first slide groove 62, playing a guiding and limiting role. Since detection component 11 is fixed on placement plate 66, the arc-shaped sliding of placement plate 66 will drive detection component 11 to complete angle adjustment, ensuring accurate alignment with cracks at different angles. The mounting frame 81 of the cleaning mechanism 8 is symmetrically fixed on the lower surface of the fifth mounting plate 7. After the third motor 82 is started, the drive shaft 83 drives the sleeve 84 to rotate. The second rotating shaft 86 inside the sleeve 84 causes the transmission column 88 to rotate synchronously, which in turn causes the swing crank 89 to swing. The swing crank 89 converts the swing into the reciprocating motion of the slide column 813 through the snap-fit ​​structure of the first movable ball 811 and the second movable ball 812. The slide column 813 slides in the limit box 815, driving the cleaning brush 814 to pass through the limit groove 816 to clean the debris in the gap. By rotating the adjustment handles 12 at both ends of the threaded rod 85, the position of the threaded block 87 can be changed. By adjusting the effective length of the transmission column 88, the swing period of the swing crank 89 can be changed, thereby adjusting the working frequency of the cleaning brush 814 to meet the cleaning needs of different amounts of debris.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bridge crack measuring device for municipal bridge works, comprising a stable plate (1) and a detection assembly (11), characterized in that: The outer side of the detection assembly (11) is provided with an angle adjusting mechanism (6) for adjusting the angle of the detection assembly (11), the top end of the angle adjusting mechanism (6) is fixedly installed with a position adjusting mechanism (5) for adjusting the position of the detection assembly (11), the top end of the position adjusting mechanism (5) is respectively provided with a first driving mechanism (3) and a second driving mechanism (4), the second driving mechanism (4) is fixedly installed in the first driving mechanism (3), and the first driving mechanism (3) and the second driving mechanism (4) are used for driving the position adjusting mechanism (5), the first driving mechanism (3) is fixedly installed on the lower surface of the stable plate (1), the lower surface of the stable plate (1) is fixedly installed with a protection box (13) for protecting the first driving mechanism (3) and the second driving mechanism (4), the stable plate (1) is fixedly installed with a supporting leg (2) on each corner towards the ground, a fifth mounting plate (7) is fixedly installed on the front side supporting leg (2) of the stable plate (1), and a cleaning mechanism (8) is fixedly installed on the lower surface of the fifth mounting plate (7) for cleaning sundries in the gap.

2. A bridge crack measuring device for municipal bridge works as claimed in claim 1, wherein: The first driving mechanism (3) comprises first and second mounting plates (33) and (34) fixedly installed symmetrically on the lower surface of the stable plate (1), first guide columns (36) are fixedly installed symmetrically between the first and second mounting plates (33) and (34), a first servo motor (31) is fixedly installed on one side of the first mounting plate (33), a first worm (35) is fixedly installed on the output end of the first servo motor (31) through a connecting shaft, the first worm (35) is rotatably installed on the first and second mounting plates (33) and (34), first bases (32) are fixedly installed symmetrically on the surface of the first worm (35), and the first bases (32) are fixedly installed on the lower surface of the stable plate (1), and the second mounting plate (34) is fixedly connected with the second driving mechanism (4).

3. A bridge crack measuring device for municipal bridge works as claimed in claim 2, wherein: The second driving mechanism (4) comprises a second servo motor (41) fixedly installed on one side of the second mounting plate (34), a screw rod (43) is fixedly installed on the output end of the second servo motor (41) through a connecting shaft, the screw rod (43) is rotatably installed on the first and second mounting plates (33) and (34), the first worm (35) and the screw rod (43) are symmetrically arranged, second bases (42) are fixedly installed symmetrically on the surface of the screw rod (43), and the second bases (42) are fixedly installed on the lower surface of the stable plate (1).

4. The bridge crack measuring device for municipal bridge works as claimed in claim 3, wherein: The position adjusting mechanism (5) comprises a first sliding seat (51) slidingly mounted on the surface of the first guide column (36), a first rotating shaft (52) rotatably mounted in the first sliding seat (51), a worm wheel (53) fixedly mounted at the top end of the first rotating shaft (52), wherein the worm wheel (53) is in meshing connection with the first worm (35), a gear (54) fixedly mounted at the end of the first rotating shaft (52) away from the worm wheel (53), a connecting plate (511) sleeved on the surface of the first rotating shaft (52), a sliding cylinder (512) fixedly mounted at one end of the connecting plate (511) and in threaded connection with the surface of the lead screw (43), a third mounting plate (55) and a fourth mounting plate (56) fixedly mounted on the lower surface of the first sliding seat (51) in symmetry, a toothed plate (58) slidingly mounted in the third mounting plate (55), a second guide column (59) fixedly mounted in the fourth mounting plate (56), first fixing plates (57) fixedly mounted at both ends of the second guide column (59), one end of each first fixing plate (57) fixedly connected with the toothed plate (58), the toothed plate (58) in meshing connection with the gear (54), and a second sliding seat (510) fixedly mounted on the surface of the second guide column (59) and at the bottom end of the toothed plate (58).

5. A bridge crack measuring device for municipal bridge works as claimed in claim 4, wherein: The angle adjusting mechanism (6) comprises a first mounting box (61) fixedly mounted at the bottom end of the second sliding seat (510), first arc-shaped sliding rails (64) fixedly mounted on the inner wall of the first mounting box (61) in symmetry, first sliding grooves (62) symmetrically formed in the first mounting box (61), first sliding blocks (65) fixedly mounted on the surfaces of the first arc-shaped sliding rails (64), third guide columns (63) fixedly mounted on the outer sides of the first sliding blocks (65) and slidingly mounted in the first sliding grooves (62), a placement plate (66) fixedly mounted between the inner sides of the first sliding blocks (65), the placement plate (66) fixedly mounted with the detection assembly (11), a second sliding rail (67) fixedly mounted on one side of the placement plate (66), a sliding plate (68) slidingly mounted in the second sliding rail (67), the sliding plate (68) adapted to the placement plate (66) and used for pushing the placement plate (66) to slide along the first arc-shaped sliding rail (64), a second fixing plate (610) fixedly mounted on the outer surface of one side of the first mounting box (61), an electric telescopic rod (69) fixedly mounted on the second fixing plate (610), and the output end of the electric telescopic rod (69) penetrating through the second fixing plate (610) and fixedly connected with the sliding plate (68).

6. The bridge crack measuring device for municipal bridge works as claimed in claim 1, wherein: The cleaning mechanism (8) includes the installation frame (81) fixedly installed on the lower surface of the fifth installation plate (7), one side of the installation frame (81) is fixedly installed with the third motor (82), the output end of the third motor (82) is fixedly installed with the driving shaft (83), the driving shaft (83) is rotatably installed on the installation frame (81), one end of the driving shaft (83) is fixedly installed with the sleeve (84), the sleeve (84) is rotatably installed with the threaded rod (85) and the second rotating shaft (86) respectively, the surface of the threaded rod (85) is threadedly connected with the threaded block (87), the surface of the second rotating shaft (86) is fixedly installed with the transmission column (88), the threaded block (87) is fixedly connected with the transmission column (88), and the transmission column (88) is located in the sleeve (84), one end of the transmission column (88) is fixedly installed with the swing crank (89), the bottom end of the swing crank (89) is fixedly installed with the fourth guide column (810), one end of the fourth guide column (810) is fixedly installed with the first movable ball (811), the surface of the first movable ball (811) is clamped with the second movable ball (812), the surface of the second movable ball (812) is fixedly installed with the sliding column (813), the surface of the sliding column (813) is fixedly installed with the cleaning brush (814), one side of the installation frame (81) is fixedly installed with the limiting box (815), and the sliding column (813) is slidably installed in the limiting box (815), the limiting box (815) is provided with the limiting groove (816), and the limiting groove (816) is matched with the cleaning brush (814).

7. A bridge crack measuring device for municipal bridge works as claimed in claim 6, wherein: Both ends of the threaded rod (85) are fixedly installed with the adjusting handle (12), which is used for adjusting the position of the threaded block (87) on the threaded rod (85).

8. The bridge crack measuring device for municipal bridge works as claimed in claim 1, wherein: One side of the stable plate (1) is fixedly installed with the push rod (10), and the surface of the push rod (10) is provided with a rubber non-slip pad.

9. The bridge crack measuring device for municipal bridge works as claimed in claim 1, wherein: The supporting legs (2) are fixedly installed with universal wheels (9).

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