A smart detection device with a floating mechanism

Abstract

This invention relates to the field of precast beam inspection technology, and in particular to an intelligent inspection device with a floating mechanism. The device includes a floating mechanism, a steel reinforcement gauge, and a drive assembly. The steel reinforcement gauge is used to test the spacing of reinforcing bars and the thickness of the concrete cover in a small box girder. The floating mechanism includes a vertical floating component, an angular floating component, and a connecting block, which is connected to the steel reinforcement gauge. The vertical and angular floating components serve as buffers for the vertical and angular floating of the steel reinforcement gauge. The drive assembly, connected to the floating mechanism, enables the automatic movement of the steel reinforcement gauge outside or inside the small box girder. This invention, by providing a detachable and assembleable quick-connect head and a matching drive assembly, achieves dual-purpose inspection capabilities, applicable not only to automated external floating detection of small box girders but also supporting automated internal floating detection of small box girders.

Description

Technical Field

[0001] This invention relates to the field of precast beam inspection technology, and in particular to an intelligent inspection device with a floating mechanism. Background Technology

[0002] In the quality inspection of precast small box girder components, a steel strength gauge is used to detect the thickness of the concrete cover and the spacing of the reinforcing bars. Current inspection methods involve a robot carrying the gauge across the concrete surface. To minimize measurement errors, the gauge needs to be in close contact with the test wall during testing. However, the surface of precast small box girder components is often uneven, with curves and slopes, making it impossible for the gauge to maintain constant contact. This results in test results that do not meet the actual measurement range. Furthermore, the small box girder is hollow and narrow, making it difficult to provide stable external forces for the gauge during internal inspections. Therefore, an intelligent inspection device with a floating mechanism is needed. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide an intelligent detection device with a floating mechanism. It has floating properties, is suitable for uneven concrete surfaces or curved surfaces, has good self-adaptation between the steel detector and the concrete, and is more suitable for automated testing.

[0004] To achieve the above objectives, the technical solution of the present invention is: an intelligent detection device with a floating mechanism, comprising a floating mechanism, a steel reinforcement gauge, and a drive assembly. The steel reinforcement gauge is used to test the spacing of reinforcing bars and the thickness of the concrete cover in a small box girder. The floating mechanism includes a vertical floating assembly, an angular floating assembly, and a connecting block. The vertical floating assembly includes a floating plate, guide rods, a compression spring, an intermediate plate, and a linear bearing. Several guide rods are connected to the floating plate, and the linear bearing passes through the intermediate plate. The other side of the guide rod passes through the linear bearing, and the compression spring is fitted onto the guide rod. The connecting block is located below the floating plate and connected to the steel reinforcement gauge. The angle floating assembly includes a mounting plate, a universal joint, tension springs, and a damper. The universal joint connects the mounting plate to the intermediate plate. Several tension springs are arranged in the universal joint and connect the mounting plate to the intermediate plate. Several dampers are arranged in the universal joint and connect the mounting plate to the intermediate plate. The top of the mounting plate is provided with a quick connector, which is used to connect a drive device to realize the automatic movement of the steel safety device outside or inside the small box girder.

[0005] Furthermore, when the steel protection device moves outside the small box girder, the driving component is a robotic arm, and the position of the robotic arm is controlled to enable the steel protection device to slide against the outer wall of the small box girder.

[0006] Furthermore, when the steel safety device moves inside the small box girder, rollers are provided on both sides of the steel safety device. The driving device includes a swing plate, a moving frame, a conveyor belt assembly, and a power assembly. The swing plate is detachably connected to the quick connector. The swing plate is rotatably located at the bottom of the moving frame. The conveyor belt assembly is located at the top of the frame and a telescopic power component is connected between the two. The telescopic power component realizes the up and down movement of the conveyor belt assembly. At least two power assemblies are located on both sides of the moving frame. During operation, the conveyor belt assembly and the two power assemblies abut against the inside of the small box girder. Controlling the operation of the two power assemblies realizes the automatic movement of the steel safety device inside the small box girder.

[0007] Furthermore, a telescopic power component two is connected between the quick connector and the mounting plate, which controls the mounting plate to move relative to the swing plate. A rotational power component one is connected between the swing plate and the moving frame, which controls the swing plate to swing.

[0008] Furthermore, the power assembly includes two symmetrically arranged power rod sets. Each power rod set includes a track rod, a moving rod, a roller assembly, and a driving power component. The track rod is inclinedly connected to the moving frame. The moving rod is embedded in the track rod and can move within the track. The roller assembly is located on the moving rod at one end away from the track rod. The driving power component is located on the moving rod and connects to the roller assembly to drive the roller assembly.

[0009] Furthermore, the track rod is rotatably connected to the moving frame and a return spring is provided at the connection between the two. The rotation range of the track rod around the moving frame is within 10° counterclockwise from the original tilt position. The track rods in the two sets of power rod sleeves are rotatably connected to each other and a buffer group is provided at the connection between the two. The buffer group includes a second damper and a second compression spring. The second damper connects the rotatable connection of the track rod to the moving frame.

[0010] Furthermore, a rack is provided on one side of the movable rod, and a drive gear is provided on the track rod. The drive gear meshes with the rack to realize the movement control of the movable rod.

[0011] Furthermore, the roller skate assembly includes three roller skate components arranged in parallel laterally. The motion drive component is connected to the roller skate component located in the middle position, and the roller skate component located in the middle position is connected to one of the remaining two roller skate components via a transmission connection.

[0012] Furthermore, the floating mechanism also includes a sensor located between the intermediate plate and the floating plate to monitor the distance between them.

[0013] Furthermore, a limiting rod is provided below the mounting plate, and a limiting channel is provided on the middle plate, into which the limiting rod passes.

[0014] By adopting the above technical solution, the beneficial effects of the present invention are:

[0015] 1. This invention achieves planar and angular floating of the steel beam detector during its connection with the drive assembly by setting up a floating mechanism with vertical and angular floating components. By utilizing the interaction of compression springs and tension springs, a space is reserved for the connection between the steel beam detector and the drive assembly, ensuring that the steel beam detector can adjust according to feedback from the wall surface, thereby improving the adaptive capability of the detection device. The floating mechanism has a simple structure and small size, and is suitable for automated detection of the exterior or interior of small box girders.

[0016] 2. This invention achieves dual-purpose detection by setting up a detachable and assembleable quick-connect head and a matching drive component, which is not only suitable for the external automated detection of small box girders, but also supports the automated detection of small box girders inside.

[0017] 3. In the automated inspection process inside a small box girder, this invention uses a movable frame as the core. A retractable conveyor belt assembly is installed above it, conforming to the side wall of the small box girder. Similarly retractable power assemblies are installed on both sides of the conveyor belt assembly, also conforming to the side wall of the small box girder. Because the small box girder has a near-trapezoidal internal cavity, the conveyor belt assembly and the power assembly form a stable contact state within the small box girder. Compared to using the weight of the drive trolley to achieve the interaction force between the steel detector and the wall, the drive assembly in this invention operates more smoothly within the small box girder. The use of lateral power assemblies for driving disperses the driving point of the drive assembly, increasing the swing space of the steel detector while ensuring smoother driving. This makes it possible for the steel detector to inspect the inner side wall of the small box girder, increasing the applicability of the inspection device.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0019] Undoubtedly, such and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and figures.

[0020] To make the above and other objects, features and advantages of the present invention more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0022] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0024] Figure 1 This is a side view of the floating mechanism of an intelligent detection device with a floating mechanism according to the present invention;

[0025] Figure 2 This is a perspective view of the floating mechanism of an intelligent detection device with a floating mechanism according to the present invention;

[0026] Figure 3 This is a perspective view of the floating mechanism of an intelligent detection device with a floating mechanism according to the present invention.

[0027] Figure 4 This is a schematic diagram of the usage state of an intelligent detection device with a floating mechanism according to the present invention.

[0028] Figure 5 This is a partial structural schematic diagram of an intelligent detection device with a floating mechanism according to the present invention.

[0029] Figure 6 This is a schematic diagram of the second usage state of an intelligent detection device with a floating mechanism according to the present invention;

[0030] Figure 7 This is a schematic diagram of the internal structure of the power rod sleeve of an intelligent detection device with a floating mechanism according to the present invention.

[0031] Figure 8 This is a side view of the intelligent detection device with a floating mechanism according to the present invention in its usage state;

[0032] Figure 9 This is a two-side view of the intelligent detection device with a floating mechanism according to the present invention in use.

[0033] Explanation of key figure labels:

[0034] 1. Floating mechanism;

[0035] 11. Upper and lower floating assembly; 111. Floating plate; 112. Guide rod; 113. Compression spring one; 114. Intermediate plate; 115. Linear bearing; 12. Angle floating assembly; 121. Mounting plate; 122. Universal joint; 123. Tension spring; 124. Damper one; 125. Limiting rod; 13. Connecting block; 14. Sensor;

[0036] 2. Steel protection device;

[0037] 21. Rollers;

[0038] 3. Driver components;

[0039] 31. Swing plate; 32. Moving frame; 321. Rotational power component one; 33. Conveyor belt assembly; 331. Telescopic power component one; 34. Power assembly; 341. Power rod sleeve; 3411. Track rod; 3412. Moving rod; 3413. Roller pulley system; 3414. Motion power component; 3415. Buffer assembly;

[0040] 4. Quick connector;

[0041] 41. Telescopic power component two. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0043] Reference Figure 8-9 This invention provides a technical solution: a steel reinforcement protective layer thickness detection device for small box girders with a floating mechanism 1, comprising the floating mechanism 1, a steel reinforcement protective layer thickness detector 2, and a drive assembly 3. The steel reinforcement protective layer thickness detector 2 is used to directly measure the thickness of the concrete protective layer or indirectly test the spacing of the reinforcing bars in a small box girder.

[0044] Reference Figure 1-3The floating mechanism 1 includes a vertical floating assembly 11, an angular floating assembly 12, and a connecting block 13. The vertical floating assembly 11 includes a floating plate 111, guide rods 112, a compression spring 113, an intermediate plate 114, and a linear bearing 115. Several guide rods 112 are connected to the floating plate 111. The linear bearing 115 passes through the intermediate plate 114, and the other side of the guide rod 112 passes through the linear bearing 115. The compression spring 113 is sleeved on the guide rod 112. The vertical floating assembly 11 allows the detection device to float 30mm in the Z-axis direction. The connecting block 13 is located below the floating plate 111 and connected to the steel-insulating device 2. The angle floating assembly 12 includes a mounting plate 121, a universal joint 122, tension springs 123, and dampers 124. The universal joint 122 connects the mounting plate 121 and the intermediate plate 114. Several tension springs 123 are arranged in a ring around the universal joint 122 and connect the mounting plate 121 and the intermediate plate 114. Several dampers 124 are arranged in a ring around the universal joint 122 and connect the mounting plate 121 and the intermediate plate 114. The angle floating assembly 12 can enable the steel detector 2 to float vertically at an angle of ±2° with the horizontal plane along the X-axis and at an angle of ±10° with the horizontal plane along the Y-axis. To collect data on the movement distance of the vertical floating assembly 11, the floating mechanism 1 also includes a sensor 14, which is located between the intermediate plate 114 and the floating plate 111 to monitor the distance between them. To limit the maximum deflection of the angle floating component 12, a limiting rod 125 is provided below the mounting plate 121, and a limiting channel is provided on the intermediate plate 114, through which the limiting rod 125 passes. A quick connector 4 is provided at the top of the mounting plate 121, which is used to connect the drive device to realize the automatic movement of the steel protection device 2 outside or inside the small box girder.

[0045] When the steel protection device 2 moves outside the small box girder, the drive component 3 is a robotic arm. At this time, the robotic arm is connected to the floating mechanism 1 through a quick-connect joint. By controlling the position of the robotic arm, the steel protection device 2 can slide against the outer wall of the small box girder.

[0046] Reference Figure 1-9When the steel safety device 2 moves inside the small box girder, rollers 21 are provided on both sides of the steel safety device 2. The driving device includes a swing plate 31, a moving frame 32, a conveyor belt assembly 33, and a power assembly 34. At this time, the quick connection includes a connecting seat. The swing plate 31 and the quick connection head 4 are detachably fixedly connected through auxiliary accessories and the connecting seat. The swing plate 31 is rotatably mounted at the bottom of the moving frame 32. The conveyor belt assembly 33 is located at the top of the frame and is connected to the frame by a telescopic power component 331. The conveyor belt assembly 33 is a prior art technology, which uses two rollers to achieve smooth contact with the inner wall of the small box girder. The telescopic power component 331 realizes the up and down movement of the conveyor belt assembly 33. At least two power components 34 are located on both sides of the moving frame 32. During operation, the conveyor belt assembly 33 and the two power components 34 abut against the inside of the small box girder. Controlling the operation of the two power components 34 realizes the automatic movement of the steel safety device 2 inside the small box girder.

[0047] To enable the testing device to test the side wall of the small box girder, a telescopic power component 41 is connected between the connecting seat on the quick connector 4 and the mounting plate 121. The telescopic power component 41 controls the mounting plate 121 to move relative to the swing plate 31. A rotational power component 321 is connected between the swing plate 31 and the moving frame 32. The rotational power component 321 controls the swing plate 31 to swing, and then controls the telescopic power component 41 to make the steel tester 2 contact the side wall of the small box girder.

[0048] The power assembly 34 specifically includes two symmetrically arranged power rod sleeves 341. Each power rod sleeve 341 includes a track rod 3411, a moving rod 3412, a pulley group 3413, and a moving power component 3414. The track rod 3411 is inclinedly connected to the moving frame 32 without external force. If necessary, a swing margin is provided at the connection between the two, and a reset spring is built in the track rod 3411, so that the rotation range of the track rod 3411 around the moving frame 32 is within 10° counterclockwise from the original inclined position. At the same time, in order to leave a vibration margin for the power assembly 34, the track rods 3411 in the two power rod sleeves 341 are rotatably connected to each other, and a buffer group 3415 is provided at the connection between the two. The buffer group 3415 includes a second damper and a second compression spring. The second damper connects the rotatable connection of the track rod 3411 to the moving frame 32. The movable rod 3412 is embedded in the track rod 3411 and can move within the track. Specifically, a rack is provided on one side of the movable rod 3412, and a drive gear is provided on the track rod 3411. The drive gear meshes with the rack to control the movement of the movable rod 3412. A pulley assembly 3413 is located on the movable rod 3412 at the end away from the track rod 3411. A driving power component 3414 is located on the movable rod 3412 and connects to the pulley assembly 3413 to drive it. To achieve smooth operation of the pulley assembly 3413, it includes three pulley components arranged parallel to each other laterally. One of the pulley components is unpowered. Specifically, the driving power component 3414 is connected to the pulley component in the middle position, and the pulley component in the middle position is connected to one of the remaining two pulley components. At this point, it is important to note that the moving directions of the rollers, rollers 21 on the steel bearing 2 and the transmission belt assembly should be consistent. The various moving power components 3414 are synchronously driven and controlled through wireless signals. During the control process, because there is resistance between the unpowered rollers and the inside of the small box girder, a small range of starting deviation can be supported.

[0049] Working Principle: Drive component 3 is selected based on testing requirements. When the steel detector 2 moves inside the small box girder, the testing device is first placed at the entrance of the small box girder. The telescopic power component 331 is adjusted so that the conveyor belt assembly 33 and the steel detector 2 abut against the upper and lower walls of the small box girder, respectively. Then, the extension length of the moving rod 3412 on the power component 34 is adjusted so that the pulley assembly 3413 abuts against the inclined portion of the inner wall of the small box girder. At this point, the components and the conveyor belt assembly 33 are in balance. The power component 34 is then activated to move the steel detector 2 for testing. During the movement of the steel detector 2, the concrete surface may be uneven. The floating mechanism 1 adapts to the uneven test surface. When testing the side wall of the small box girder, simply activate the rotational power component 321 to adjust the angle between the swing plate 31 and the moving frame 32, and then adjust the telescopic power component 41 to make the steel detector 2 abut against the side wall of the small box girder.

[0050] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0051] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0052] Furthermore, the described features or characteristics can be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented without the aforementioned specific details or may be implemented using other methods, components, materials, etc.

Claims

1. An intelligent detection device with a floating mechanism, characterized in that, The device includes a floating mechanism, a steel gauge, and a drive assembly. The steel gauge is used to test the spacing of reinforcing bars and the thickness of the concrete cover in a small box girder. The floating mechanism includes an upper and lower floating assembly, an angle floating assembly, and a connecting block. The upper and lower floating assembly includes a floating plate, guide rods, a compression spring, an intermediate plate, and a linear bearing. Several guide rods are connected to the floating plate, and the linear bearing passes through the intermediate plate. The other side of the guide rod passes through the linear bearing, and the compression spring is set on the guide rod. The connecting block is located below the floating plate and connected to the steel gauge. The angle floating assembly includes a mounting plate, a universal joint, a tension spring, and a damper. The universal joint connects the mounting plate and the intermediate plate. Several tension springs are ringed on the universal joint and connect the mounting plate and the intermediate plate. Several dampers are ringed on the universal joint and connect the mounting plate and the intermediate plate. The top of the mounting plate is provided with a quick connector for connecting a drive device to realize the automatic movement of the steel gauge outside or inside the small box girder. When the steel safety device moves inside the small box girder, rollers are provided on both sides of the steel safety device. The driving device includes a swing plate, a moving frame, a conveyor belt assembly, and a power assembly. The swing plate is detachably connected to the quick connector. The swing plate is rotatably located at the bottom of the moving frame. The conveyor belt assembly is located at the top of the frame and a telescopic power component is connected between the two. The telescopic power component realizes the up and down movement of the conveyor belt assembly. At least two power assemblies are located on both sides of the moving frame. During operation, the conveyor belt assembly and the two power assemblies abut against the inside of the small box girder. Controlling the operation of the two power assemblies realizes the automatic movement of the steel safety device inside the small box girder. The quick connector is connected to the mounting plate by a telescopic power component two, which controls the mounting plate to move relative to the swing plate. The swing plate is connected to the moving frame by a rotational power component one, which controls the swing plate to swing. The power assembly includes two symmetrically arranged power rod sets. Each power rod set includes a track rod, a moving rod, a pulley assembly, and a moving power component. The track rod is inclinedly connected to the moving frame. The moving rod is embedded in the track rod and can move within the track. The pulley assembly is located on the moving rod at one end away from the track rod. The moving power component is located on the moving rod and connects to the pulley assembly to drive the pulley assembly. The track rod is rotatably connected to the moving frame and a return spring is provided at the connection between the two. The rotation range of the track rod around the moving frame is within 10° counterclockwise from the original tilt position. The track rods in the two sets of power rod sleeves are rotatably connected to each other and a buffer group is provided at the connection between the two. The buffer group includes a second damper and a second compression spring. The second damper connects the rotatable connection of the track rod to the moving frame.

2. The intelligent detection device with a floating mechanism according to claim 1, characterized in that, When the steel protection device moves outside the small box girder, the drive component is a robotic arm. By controlling the position of the robotic arm, the steel protection device can slide along the outer wall of the small box girder.

3. The intelligent detection device with a floating mechanism according to claim 1, characterized in that, The movable rod has a rack on one side, and a drive gear is provided on the track rod. The drive gear meshes with the rack to realize the movement control of the movable rod.

4. The intelligent detection device with a floating mechanism according to claim 1, characterized in that, The roller skate assembly includes three roller skates arranged in parallel laterally. The driving force is connected to the roller skate located in the middle position, and the roller skate located in the middle position is connected to one of the remaining two roller skates.

5. The intelligent detection device with a floating mechanism according to claim 1, characterized in that, The floating mechanism also includes a sensor located between the intermediate plate and the floating plate to monitor the distance between them.

6. The intelligent detection device with a floating mechanism according to claim 1, characterized in that, The mounting plate has a limiting rod at the bottom and a limiting channel on the middle plate, through which the limiting rod passes.

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