Bridge bottom concrete crack detection device

Abstract

The invention discloses a bridge bottom concrete crack detection device, and relates to the technical field of crack detection, the bridge bottom concrete crack detection device comprises a base, the surface of the base is fixedly connected with a control assembly, the control assembly is provided with a mounting plate, and the mounting plate is provided with a detection probe for detecting a bridge bottom concrete crack; and a smearing assembly for smearing a coupling agent on the detection probe is arranged on one side of the mounting plate. According to the bridge bottom concrete crack detection device, a second air cylinder is started to drive a pushing disc to push a coupling agent to be discharged from a storage barrel, a double-shaft motor is used for driving a smearing roller to rotate, meanwhile, a first bevel gear and a second bevel gear are meshed to enable the smearing roller to rotate, and uniform smearing of the coupling agent on the surface of a detection probe is achieved; the coupling agent can be uniformly distributed on the surface of the detection probe through the autorotation and rotation of the smearing roller, so that good transmission of sound waves in the detection process is ensured, and the reliability of a detection result is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of crack detection, in particular to a device for detecting cracks in concrete at the bottom of a bridge. Background Art

[0002] As an important part of transportation infrastructure, the structural safety of bridges is directly related to the smooth transportation and the safety of people's lives and property. The concrete at the bottom of bridges is exposed to complex environments for a long time and is affected by various factors such as vehicle loads and natural erosion. It is prone to cracks and other defects. If these cracks are not detected and treated in time, they may gradually expand and seriously affect the structural performance and service life of the bridge. Therefore, accurate and efficient detection of concrete cracks at the bottom of bridges is of great practical significance.

[0003] Currently, there are some bridge bottom concrete crack detection devices on the market. These devices can detect cracks on bridge bottoms to a certain extent. Common existing technology devices usually include a detection probe, a coupling agent application component, and a simple positioning structure. During the detection, the coupling agent is generally applied to the detection probe manually or by a simple mechanical structure. The detection probe is then moved to the location to be tested on the bridge bottom to detect cracks. However, existing bridge bottom concrete crack detection devices have many defects, which seriously affect the efficiency, accuracy and reliability of the detection work.

[0004] Existing devices often apply coupling agent unevenly. Most applications rely on manual application or simple extrusion, making it difficult to ensure uniform distribution of the coupling agent on the surface of the test probe. Uneven coupling agent application can lead to unstable acoustic wave transmission between the test probe and the concrete at the bottom of the bridge, causing fluctuations and interference in the test signal, thereby reducing the accuracy of the test results. Furthermore, uneven application can easily waste coupling agent and increase testing costs. For example, in some manual application cases, operators find it difficult to precisely control the amount and application range of coupling agent, resulting in excessive coupling agent in some areas and insufficient coupling agent in others. This wastes coupling agent and affects the test results.

[0005] In terms of cleaning the parts to be inspected, most existing devices lack effective cleaning functions. Dust, debris, oil and other pollutants are easily accumulated on the concrete surface at the bottom of the bridge. These pollutants will hinder the full contact between the detection probe and the concrete surface and affect the transmission of sound waves. Existing devices are often unable to effectively remove these pollutants before detection, resulting in signal attenuation, noise increase and other problems during the detection process, reducing the accuracy and reliability of the detection. For example, when there is a lot of dust or debris accumulated at the bottom of the bridge, the existing devices cannot be cleaned in time, making it impossible for the detection probe to accurately capture crack information, which is prone to missed detection or false detection. Multiple repeated detections are required, greatly reducing the detection efficiency. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the present invention provides a device for detecting cracks in concrete at the bottom of a bridge, which solves the technical problems mentioned in the background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a bridge bottom concrete crack detection device, comprising a base, a control component fixedly connected to the base surface, a mounting plate provided on the control component, a detection probe for detecting and processing concrete cracks at the bridge bottom provided on the mounting plate, and an application component for applying coupling agent to the detection probe provided on one side of the mounting plate;

[0008] The smearing assembly includes a mounting base fixedly mounted on both sides of the mounting plate, a control motor fixedly mounted on one side of the mounting base, the output ends of the two control motors are rotatably connected to a rotating frame, sleeves and positioning plates are respectively provided on both sides of the rotating frame, the positions of the positioning plates and the detection probes correspond to each other, a storage barrel is fixedly connected to the inner cavity of the sleeve, a plurality of storage barrels are opened on the surface of the storage barrel close to the detection probe, the inner cavity of the storage barrel is sealingly and slidingly connected to the sleeve, a second cylinder is fixedly mounted on the outer end of the storage barrel, and the output end of the second cylinder is fixedly connected to the push disk.

[0009] As a further preference of the present technical solution, a first gear rod slidably mounted on the rotating frame is fixedly connected on both sides of the sleeve surface, a second gear rod slidably mounted on the rotating frame is fixedly connected on both sides of the positioning plate surface, a gear is meshed between the first gear rod and the second gear rod, a bidirectional motor is fixedly mounted in the inner cavity of the rotating frame, and the output end of the bidirectional motor is fixedly connected to the gear.

[0010] As a further optimization of the present technical solution, a dual-axis motor is fixedly mounted on the rotating frame, one end of the dual-axis motor is fixedly connected to a rotating rod, and the rotating rod is sealingly and rotatably mounted on the storage barrel, and the outer wall of the end of the rotating rod is rotatably connected to a coating roller for evenly coating the coupling agent on the surface of the detection probe.

[0011] As a further preferred embodiment of the present technical solution, the outer wall of the coating roller is fixedly connected to a first bevel gear, the outer wall of the rotating rod is sleeved with a second bevel gear fixedly mounted on the storage barrel, and the second bevel gear is meshed with the first bevel gear.

[0012] As a further optimization of this technical solution, the other end of the dual-axis motor is fixedly connected to a rotating shaft, which is rotatably mounted on a positioning plate, and the outer wall end of the rotating shaft is rotatably connected to a cleaning roller for cleaning the concrete position at the bottom of the bridge to be inspected.

[0013] As a further preferred embodiment of the present technical solution, a third bevel gear is fixedly connected to the outer wall of the cleaning roller, a fourth bevel gear fixedly mounted on the positioning plate is sleeved on the outer wall of the rotating shaft, and the fourth bevel gear is meshed with the third bevel gear.

[0014] As a further preferred embodiment of the present technical solution, the control assembly includes a first movable plate installed on the base for transverse sliding, a first cylinder fixedly installed on the base is provided on the first movable plate, and a second movable plate is installed on the surface of the first movable plate for longitudinal sliding.

[0015] As a further optimization of the present technical solution, a driving motor is fixedly mounted on the first movable plate, a synchronous pulley transmission member is provided at the output end of the driving motor, a second movable plate fixedly connected to the second movable plate is provided on the synchronous pulley transmission member, and the detection probe and the smearing assembly are mounted on the second movable plate.

[0016] Compared with the existing technology, it has the following beneficial effects:

[0017] By turning on the control motor to drive the rotating frame, sleeve, and positioning plate to rotate forward or reverse, the detection process is automatically connected. When the rotating frame rotates to a horizontal state with the detection probe, the coupling agent is automatically applied. When it rotates to a vertical state, crack detection is immediately performed, which greatly improves the detection efficiency and reduces the tediousness and errors of manual operation. This equipment ensures the seamless connection between the coupling agent application and the detection operation through automatic control. It can complete the detection work of multiple detection points in a short time, improving the overall detection efficiency. At the same time, the automated operation process reduces the interference of human factors, making the detection results more stable and reliable, and providing more accurate data support for subsequent bridge maintenance and repair work.

[0018] The control component moves the positioning plate to the concrete position at the bottom of the bridge to be inspected, and the bidirectional motor drives the gear to rotate forward and reverse, so that the sleeve and the positioning plate move inward or outward synchronously, realizing the precise positioning and distance adjustment of the inspection equipment and the part to be inspected;

[0019] The second air cylinder drives the push disk to discharge the coupling agent from the storage barrel, and the dual-axis motor drives the application roller to rotate. At the same time, the meshing of the first and second bevel gears causes the application roller to rotate, achieving uniform application of the coupling agent to the surface of the detection probe. The rotation and rotation of the application roller ensure that the coupling agent is evenly distributed on the surface of the detection probe, ensuring good transmission of sound waves during the detection process and improving the reliability of the test results. In addition, this uniform application method can also reduce coupling agent waste and lower detection costs.

[0020] The cleaning roller is driven to rotate by a dual-axis motor, and the meshing of the third bevel gear and the fourth bevel gear causes the cleaning roller to rotate, thereby cleaning the concrete at the bottom of the bridge to be inspected. The inspected area can be cleaned before inspection to remove surface pollutants, providing a clean environment for inspection. The self-rotation and rotation of the cleaning roller can more effectively remove various pollutants, ensuring that the detection probe can fully contact the concrete surface, thereby improving the accuracy and reliability of the inspection. At the same time, this cleaning function can also reduce inspection errors caused by pollutants, avoid unnecessary repeated inspections, and improve inspection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 Schematic diagram of the structure of the control component in the present invention;

[0023] Figure 3 This is a schematic structural diagram of the second movable plate, mounting plate, detection probe, sleeve, and positioning plate in the present invention;

[0024] Figure 4 Schematic diagram of the disassembled structure of the mounting plate and the detection probe in the present invention;

[0025] Figure 5 It is a partial structural diagram of the rotating frame, sleeve and positioning plate in the present invention;

[0026] Figure 6 It is a schematic cross-sectional view of the structure of the sleeve, storage barrel and positioning plate in the present invention;

[0027] Figure 7 This is a schematic structural diagram of the material storage barrel, the push plate, and the second cylinder in the present invention;

[0028] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0029] Figure 9 for Figure 6 Enlarged view of point B in the middle.

[0030] In the figure: 1. base; 2. control component; 3. mounting plate; 4. detection probe; 5. smearing component; 21. first movable plate; 22. first cylinder; 23. second movable plate; 24. driving motor; 25. synchronous pulley transmission member; 26. connecting plate; 51. mounting seat; 52. control motor; 53. rotating frame; 54. first gear rod; 55. sleeve; 56. storage barrel; 57. second cylinder; 58. pushing plate; 59. discharge hole; 510. rotating rod; 511. smearing roller; 512. first bevel gear; 513. second bevel gear; 514. dual-axis motor; 515. positioning plate; 516. second gear rod; 517. bidirectional motor; 518. gear; 519. rotating shaft; 520. cleaning roller; 521. third bevel gear; 522. fourth bevel gear; 523. sealing ring. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example 1: Combination Figures 1-9 As shown, the present invention provides a technical solution: a device for detecting cracks in concrete at the bottom of a bridge, comprising a base 1, a control component 2 fixedly connected to the surface of the base 1, a mounting plate 3 provided on the control component 2, a detection probe 4 for detecting cracks in concrete at the bottom of the bridge provided on the mounting plate 3, and an application component 5 for applying coupling agent to the detection probe 4 provided on one side of the mounting plate 3;

[0033] The smearing component 5 includes a mounting base 51 fixedly mounted on both sides of the mounting plate 3, and a control motor 52 is fixedly mounted on one side of the mounting base 51. The output ends of the two control motors 52 are rotatably connected to a rotating frame 53. Sleeves 55 and positioning plates 515 are respectively provided on both sides of the rotating frame 53, so that a sealing ring 523 is provided on the inner wall of the sleeve 55. When the sleeve 55 moves the position of the detection probe 4, the sleeve 55 is sleeved on the detection probe 4, and the sealing ring 523 is used to seal and fit with the outer wall of the detection probe 4 to prevent dust generated when cleaning the concrete surface from falling onto the surface of the detection probe 4. The positions of the positioning plates 515 and the detection probe 4 correspond to each other. The inner cavity of the sleeve 55 is fixedly connected to a storage barrel 56, and a plurality of storage barrels 56 are opened on the surface of the storage barrel 56 close to the detection probe 4. The inner cavity of the storage barrel 56 is sealed and slidably connected to the sleeve 55, and the outer end of the storage barrel 56 is fixed A second air cylinder 57 is installed, and the output end of the second air cylinder 57 is fixedly connected to a push plate 58. The push plate 58 is made of rubber, so that the push plate 58 can slide in a sealed manner in the storage barrel 56. When the second air cylinder 57 is turned on to drive the push plate 58 to move toward the side of the detection probe 4, the push plate 58 can push the coupling agent to move in the storage barrel 56, so that the coupling agent in the storage barrel 56 is discharged through multiple discharge holes 59 at the bottom and automatically applied to the corresponding detection probe 4; by turning on the control motor 52, the rotating frame 53, the sleeve 55, and the positioning plate 515 can be driven to rotate forward or reverse. When the rotating frame 53 is rotated to a horizontal state with the detection probe 4, the coupling agent can be applied to the detection probe 4. When the rotating frame 53 is rotated to a vertical state with the detection probe 4, the detection probe 4 coated with the coupling agent is used to detect cracks in the concrete at the bottom of the bridge;

[0034] The first gear rod 54 slidably mounted on the rotating frame 53 is fixedly connected to both sides of the surface of the sleeve 55, and the second gear rod 516 slidably mounted on the rotating frame 53 is fixedly connected to both sides of the surface of the positioning plate 515. A gear 518 is meshed between the first gear rod 54 and the second gear rod 516. A bidirectional motor 517 is fixedly installed in the inner cavity of the rotating frame 53. The output end of the bidirectional motor 517 is fixedly connected to the gear 518. By turning on the bidirectional motor 517, the gear 518 is driven to rotate forward and reverse, so that the gear 518 drives the meshed first gear rod 54 and the second gear rod 516 to move synchronously, thereby driving the sleeve 55 and the positioning plate 515 to move synchronously inward or outward, so that the sleeve 55 moves to the position of the detection probe 4, and the positioning plate 515 corresponds to the position of the concrete at the bottom of the bridge to be detected. Then, the control component 2 is used to control the positioning plate 515 to move to the position of the concrete at the bottom of the bridge to be detected, thereby realizing accurate detection and processing of cracks in the concrete at the bottom of the bridge;

[0035] On the structure of the rotating frame 53, a double-axis motor 514 is carefully designed and fixedly installed. One end of the double-axis motor 514 is tightly connected to the rotating rod 510, ensuring that the rotating rod 510 can rotate stably. The rotating rod 510 is designed to be sealed and rotatably installed in the storage barrel 56 to ensure its stability and sealing during rotation. On the outer wall of the end of the rotating rod 510, a smearing roller 511 is rotatably connected to evenly apply the coupling agent to the surface of the detection probe 4. A first bevel gear 512 is fixedly connected to the outer wall of the smearing roller 511, and a gear fixedly installed in the storage barrel is sleeved on the outer wall of the rotating rod 510. The second bevel gear 513 on the cylinder 56, the first bevel gear 512, and the second bevel gear 513 are designed to mesh with each other to ensure that they can mesh with each other smoothly. When the dual-axis motor 514 is turned on, it will drive the rotating rod 510 to rotate synchronously. As the rotating rod 510 rotates, the smear roller 511 and the first bevel gear 512 also rotate synchronously. Due to the meshing of the first bevel gear 512 and the second bevel gear 513, the smear roller 511 can achieve self-rotation during the rotation process. This self-rotation mechanism enables the smear roller 511 to evenly apply the coupling agent on the surface of the detection probe 4, ensuring the uniformity and consistency of the application effect.

[0036] The other end of the dual-axis motor 514 is designed to be fixedly connected to a rotating shaft 519, which is cleverly mounted on the positioning plate 515 and can rotate freely. At the end of the outer wall of the rotating shaft 519, we found a specially designed cleaning roller 520. Its main function is to clean a specific area of the concrete at the bottom of the bridge. In order to ensure that the cleaning roller 520 can effectively complete its task, a third bevel gear 521 is fixedly connected to its outer wall. In addition, a fourth bevel gear 522 is sleeved on the outer wall of the rotating shaft 519. This gear is fixedly mounted on the positioning plate 515 and meshes very appropriately with the third bevel gear 521. When the dual-axis motor 514 is started, it can drive the rotating shaft 519, the cleaning roller 520 and the third bevel gear 521 to rotate synchronously. Due to the precise engagement between the third bevel gear 521 and the fourth bevel gear 522, the cleaning roller 520 can rotate while rotating. This design enables the cleaning roller 520 to be more efficient and thorough when cleaning the concrete at the bottom of the bridge.

[0037] In the embodiment of the present invention, by starting the control motor 52, the rotating frame 53, the sleeve 55, and the positioning plate 515 can be driven to rotate forward or reverse. When the rotating frame 53 rotates to a horizontal position with the detection probe 4, the system will automatically apply the coupling agent. When the rotating frame 53 rotates to a position perpendicular to the detection probe 4, the detection probe 4, which has been coated with the coupling agent, can then perform crack detection on the concrete at the bottom of the bridge.

[0038] When the rotating frame 53 rotates to a position horizontal to the detection probe 4, the positioning plate 515 can be moved to the position of the concrete at the bottom of the bridge to be inspected through the action of the control component 2. In this way, through precise positioning, it is ensured that the detection probe 4 can accurately inspect the concrete;

[0039] Next, by starting the bidirectional motor 517, the gear 518 can rotate forward and reverse. The rotation of the gear 518 drives the meshing first gear rod 54 and the second gear rod 516 to move synchronously, thereby pushing the sleeve 55 and the positioning plate 515 to move synchronously inward or outward. This process enables the sleeve 55 to move to the position of the detection probe 4, and the positioning plate 515 corresponds to the position of the concrete bottom of the bridge to be detected. Subsequently, the control component 2 plays a role again, moving the positioning plate 515 to the position of the concrete bottom of the bridge to be detected, preparing for the next step of detection.

[0040] When the second cylinder 57 is started, the push plate 58 will move toward one side of the detection probe 4. The movement of the push plate 58 will push the coupling agent in the storage barrel 56 to move forward, so that the coupling agent in the storage barrel 56 is discharged through the multiple discharge holes 59 at the bottom and automatically applied to the corresponding detection probe 4. At this time, the coupling agent distribution on the surface of the detection probe 4 may not be uniform. In order to solve this problem, the dual-axis motor 514 is started, which drives the rotating rod 510 to rotate synchronously. The rotating rod 510 in turn drives the smearing roller 511 and the first bevel gear 512 to rotate synchronously. Since the first bevel gear 512 is engaged with the second bevel gear 513, the smearing roller 511 and the first bevel gear 512 are engaged. The wiping roller 511 can rotate during the rotation process, thereby evenly applying the coupling agent on the surface of the detection probe 4. At the same time, the dual-axis motor 514 can also drive the rotating shaft 519, the cleaning roller 520, and the third bevel gear 521 to rotate. Since the third bevel gear 521 is engaged with the fourth bevel gear 522, the cleaning roller 520 can also rotate during the rotation process to clean the concrete position at the bottom of the bridge to be inspected. After that, the control rotating frame 53 is rotated to a position perpendicular to the detection probe 4, and the control component 2 is used to move the detection probe 4 to the concrete position at the bottom of the bridge to be inspected for inspection.

[0041] By starting the control motor 52, the rotating frame 53, sleeve 55, and positioning plate 515 can rotate forward or backward, thereby realizing the automated connection of the detection process. When the rotating frame 53 rotates to a position horizontal to the detection probe 4, the system automatically applies the coupling agent. When the rotating frame 53 rotates to a position perpendicular to the detection probe 4, the system immediately performs crack detection. This automated operation greatly improves detection efficiency and reduces the tediousness and errors of manual operation. Through automated control, this equipment ensures seamless connection between coupling agent application and detection operations, and can complete the detection work of multiple detection points in a short time, thereby improving overall detection efficiency. At the same time, the automated operation process reduces interference from human factors, making the detection results more stable and reliable, and providing more accurate data support for subsequent bridge maintenance and repair work.

[0042] Through the control component 2, the positioning plate 515 can be moved to the position of the concrete at the bottom of the bridge to be inspected. At the same time, the activation of the bidirectional motor 517 enables the gear 518 to rotate forward and reverse, thereby causing the sleeve 55 and the positioning plate 515 to move inward or outward synchronously, thereby achieving precise positioning and distance adjustment between the inspection equipment and the part to be inspected;

[0043] By activating the second air cylinder 57 , the push disk 58 pushes the coupling agent out of the storage barrel 56 . At the same time, the activation of the dual-axis motor 514 drives the application roller 511 to rotate. Due to the meshing of the first bevel gear 512 and the second bevel gear 513 , the application roller 511 can rotate, thereby achieving uniform application of the coupling agent to the surface of the detection probe 4 . The rotation of the application roller 511 allows the coupling agent to be evenly distributed on the surface of the detection probe 4 , ensuring good transmission of sound waves during the detection process and improving the reliability of the detection results. In addition, this uniform application method can also reduce the waste of coupling agent and reduce the detection cost.

[0044] Driven by the dual-axis motor 514, the cleaning roller 520 starts to rotate. At the same time, due to the engagement of the third bevel gear 521 and the fourth bevel gear 522, the cleaning roller 520 can rotate on its own. This combination of self-rotation and rotation realizes the cleaning of the concrete position at the bottom of the bridge to be inspected. The inspected area can be cleaned before inspection to remove surface pollutants, providing a clean environment for inspection. The self-rotation and rotation of the cleaning roller 520 can more effectively remove various pollutants, ensure that the detection probe 4 can fully contact the concrete surface, and improve the accuracy and reliability of the inspection. At the same time, this cleaning function can also reduce the detection error caused by pollutants, avoid unnecessary repeated inspections, and thus improve the detection efficiency.

[0045] Example 2: Combination Figure 2 、 Figure 3As shown, on the basis of Example 1, the control component 2 includes a first movable plate 21 mounted on the base 1 for transverse sliding, the first movable plate 21 is provided with a first cylinder 22 fixedly mounted on the base 1, a second movable plate 23 is mounted on the surface of the first movable plate 21 for longitudinal sliding, a drive motor 24 is fixedly mounted on the first movable plate 21, a synchronous pulley transmission member 25 is provided at the output end of the drive motor 24, a second movable plate 23 fixedly connected to the second movable plate 23 is provided on the synchronous pulley transmission member 25, and the detection probe 4 and the smearing component 5 are installed on the second movable plate 23.

[0046] In an embodiment of the present invention, during the inspection of concrete at the bottom of a bridge, if it is necessary to precisely adjust the specific position of the detection probe 4, this can be achieved by activating the first cylinder 22. When the first cylinder 22 is started, it will drive the first movable plate 21 and the second movable plate 23, thereby driving the detection probe 4 and the smear component 5 to move laterally. In addition, by starting the drive motor 24 and cooperating with the synchronous pulley transmission 25 and the connecting plate 26, the second movable plate 23, the detection probe 4 and the smear component 5 can be moved up and down. Such a dual movement mechanism ensures that the detection probe 4 can be precisely adjusted to the optimal position so that it can be smoothly moved to the position where the concrete at the bottom of the bridge to be inspected is located, thereby performing effective inspection work.

[0047] The working principle of the bridge bottom concrete crack detection device is as follows: By turning on the control motor 52, the rotating frame 53, sleeve 55, and positioning plate 515 can be rotated forward or reverse. When the rotating frame 53 rotates to a horizontal position with the detection probe 4, the detection probe 4 can be coated with coupling agent. When the rotating frame 53 rotates to a vertical position with the detection probe 4, the detection probe 4 coated with coupling agent can be used to detect cracks in the bridge bottom concrete.

[0048] When the rotating frame 53 is controlled to rotate to a level with the detection probe 4, the positioning plate 515 is moved to the position of the concrete at the bottom of the bridge to be detected by using the control component 2;

[0049] Then, by turning on the bidirectional motor 517, the gear 518 is driven to rotate forward and reverse, so that the gear 518 drives the meshed first gear rod 54 and the second gear rod 516 to move synchronously, thereby driving the sleeve 55 and the positioning plate 515 to move synchronously inward or outward, so that the sleeve 55 moves to the position of the detection probe 4, and the positioning plate 515 corresponds to the position of the concrete at the bottom of the bridge to be detected. Then, the control component 2 is used to control the positioning plate 515 to move to the position of the concrete at the bottom of the bridge to be detected;

[0050] When the second cylinder 57 is turned on to drive the push plate 58 to move toward the side of the detection probe 4, the push plate 58 can push the coupling agent to move in the storage barrel 56, so that the coupling agent in the storage barrel 56 is discharged through the multiple discharge holes 59 at the bottom and automatically applied to the corresponding detection probe 4. At this time, the coupling agent on the surface of the detection probe 4 is not uniform. Then, the dual-axis motor 514 is turned on to drive the rotating rod 510 to rotate synchronously. The rotating rod 510 drives the smearing roller 511 and the first bevel gear 512 to rotate synchronously. At the same time, since the first bevel gear 512 is meshed with the second bevel gear 513, the smearing roller 511 can automatically rotate during the rotation process. The smear roller 511 evenly smears the coupling agent on the surface of the detection probe 4, and the dual-axis motor 514 can drive the rotating shaft 519, the cleaning roller 520, and the third bevel gear 521 to rotate. Since the third bevel gear 521 is engaged with the fourth bevel gear 522, the cleaning roller 520 can rotate during the rotation, so that the cleaning roller 520 cleans the concrete at the bottom of the bridge to be detected. When the rotating frame 53 is controlled to rotate to a state perpendicular to the detection probe 4, the control component 2 is used to control the detection probe 4 to move to the concrete at the bottom of the bridge to be detected for detection.

[0051] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A bridge bottom concrete crack detection device, comprising a base (1), characterized in that: A control component (2) is fixedly connected to the surface of the base (1), a mounting plate (3) is provided on the control component (2), a detection probe (4) for detecting cracks in concrete at the bottom of the bridge is provided on the mounting plate (3), and a coating component (5) for coating the detection probe (4) with a coupling agent is provided on one side of the mounting plate (3); The smearing assembly (5) includes a mounting base (51) fixedly mounted on both sides of the mounting plate (3), a control motor (52) fixedly mounted on one side of the mounting base (51), the output ends of the two control motors (52) are rotatably connected to a rotating frame (53), sleeves (55) and positioning disks (515) are respectively provided on both sides of the rotating frame (53), the positions of the positioning disks (515) and the detection probe (4) correspond to each other, the inner cavity of the sleeve (55) is fixedly connected to a storage barrel (56), a surface of the storage barrel (56) close to the detection probe (4) is provided with a plurality of storage barrels (56), the inner cavity of the storage barrel (56) is sealingly and slidably connected to the sleeve (55), the outer end of the storage barrel (56) is fixedly mounted with a second cylinder (57), and the output end of the second cylinder (57) is fixedly connected to the push disk (58).

2. The bridge bottom concrete crack detection device according to claim 1, characterized in that: A first gear rod (54) slidably mounted on the rotating frame (53) is fixedly connected to both sides of the surface of the sleeve (55), a second gear rod (516) slidably mounted on the rotating frame (53) is fixedly connected to both sides of the surface of the positioning plate (515), a gear (518) is meshedly connected between the first gear rod (54) and the second gear rod (516), a bidirectional motor (517) is fixedly mounted in the inner cavity of the rotating frame (53), and an output end of the bidirectional motor (517) is fixedly connected to the gear (518).

3. The bridge bottom concrete crack detection device according to claim 2, characterized in that: A dual-axis motor (514) is fixedly mounted on the rotating frame (53), one end of the dual-axis motor (514) is fixedly connected to a rotating rod (510), and the rotating rod (510) is sealed and rotatably mounted on the storage barrel (56), and an outer wall of the end of the rotating rod (510) is rotatably connected to a coating roller (511) for evenly coating the coupling agent on the surface of the detection probe (4).

4. The bridge bottom concrete crack detection device according to claim 3, characterized in that: The outer wall of the coating roller (511) is fixedly connected to a first bevel gear (512), and the outer wall of the rotating rod (510) is sleeved with a second bevel gear (513) fixedly mounted on the storage barrel (56), and the second bevel gear (513) is meshed with the first bevel gear (512).

5. The bridge bottom concrete crack detection device according to claim 4, characterized in that: The other end of the dual-axis motor (514) is fixedly connected to a rotating shaft (519), which is rotatably mounted on the positioning plate (515). The outer wall end of the rotating shaft (519) is rotatably connected to a cleaning roller (520) for cleaning the concrete position at the bottom of the bridge to be inspected.

6. The bridge bottom concrete crack detection device according to claim 5, characterized in that: A third bevel gear (521) is fixedly connected to the outer wall of the cleaning roller (520), and a fourth bevel gear (522) fixedly mounted on the positioning plate (515) is sleeved on the outer wall of the rotating shaft (519), and the fourth bevel gear (522) is meshed with the third bevel gear (521).

7. The bridge bottom concrete crack detection device according to claim 1, characterized in that: The control assembly (2) comprises a first movable plate (21) mounted on the base (1) in a transversely sliding manner, a first cylinder (22) fixedly mounted on the base (1) is provided on the first movable plate (21), and a second movable plate (23) is mounted on the surface of the first movable plate (21) in a longitudinally sliding manner.

8. The bridge bottom concrete crack detection device according to claim 7, characterized in that: A driving motor (24) is fixedly mounted on the first movable plate (21), a synchronous pulley transmission member (25) is provided at the output end of the driving motor (24), a second movable plate (23) fixedly connected to the second movable plate (23) is provided on the synchronous pulley transmission member (25), and a detection probe (4) and a smearing assembly (5) are mounted on the second movable plate (23).

Images