Concrete structure surface crack detection device

Abstract

The utility model discloses a concrete structure surface crack detection device, and relates to the technical field of crack detection devices. A lifting seat; the translation assembly is used for driving the lifting seat to move horizontally; the camera is connected to the translation assembly; and the calibration plate is connected to the translation assembly and located below the camera, the calibration plate is provided with a notch-shaped detection port, and the top surface of the calibration plate is provided with scale marks. By arranging the telescopic assembly, when the telescopic assembly extends, the lifting base moves upwards and is located above the top of an external concrete high platform, the camera is located above the concrete high platform, then the camera is driven to move through the translation assembly, and therefore the camera can move in the length direction of a crack, and the camera can move along the length direction of the crack while moving. The width size of the crack is judged through the scale marks on the calibration plate, workers do not need to climb on a concrete high platform for detection, potential safety hazards are reduced, and the detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of crack detection devices, specifically a crack detection device for concrete structure surfaces. Background Technology

[0002] Cracks in concrete structures are physical changes that occur in concrete structures under the influence of internal and external factors. These cracks are the main cause of the reduction in the load-bearing capacity, durability, and waterproofing of concrete structures. Detection devices are needed to detect cracks in concrete structures to assess their width, direction, and other characteristics, thereby evaluating the degree of damage caused by the cracks.

[0003] In existing technologies, when inspecting the width of structural cracks on a concrete platform, workers need to use scaffolding to inspect the crack width on the top surface of the concrete platform. This inspection method poses significant safety hazards and is also inefficient.

[0004] Therefore, this application proposes a device for detecting cracks on the surface of concrete structures. Utility Model Content

[0005] The purpose of this invention is to provide a device for detecting cracks on the surface of concrete structures, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A device for detecting surface cracks in concrete structures, comprising:

[0008] Telescopic components;

[0009] A lifting seat, which is connected to the telescopic assembly;

[0010] A translation component is disposed on the lifting base and is used to drive the lifting base to move horizontally;

[0011] A camera, which is connected to the translation component;

[0012] A calibration plate is connected to the translation component and located below the camera. The calibration plate has a notch-shaped detection port and a scale line on its top surface.

[0013] Furthermore, the telescopic component includes:

[0014] base;

[0015] A fixing cylinder, which is vertically fixed to the top of the base;

[0016] A telescopic column is telescopically inserted into the fixed cylinder. A handle is provided at the lower end of the telescopic column, and an oblong hole is provided on the fixed cylinder to allow the handle to move freely up and down.

[0017] Furthermore, the translation component includes:

[0018] A sliding column is horizontally inserted through the lifting seat and can slide freely. One end of the sliding column along its length is fixedly connected to a mounting part, and the camera is installed at the bottom of the mounting part.

[0019] The gear is rotatably connected to the lifting seat. The lifting seat has an installation cavity for the sliding column and the gear to pass through freely. The lower surface of the sliding column has a rack portion that meshes with the gear.

[0020] An electric motor is mounted on the lifting base, and the gear is sleeved on the output shaft of the electric motor.

[0021] Furthermore, rollers are installed at the bottom of the calibration plate.

[0022] Furthermore, a hollow storage seat is fixed to the top surface of the calibration plate, and a piston that slides freely up and down is engaged inside the storage seat. The lower end face of the piston and the inner bottom wall of the storage seat form a storage cavity for storing the labeling liquid. The outer wall of the storage seat is provided with a spray hole, the opening of which faces the detection port. The storage seat is provided with a liquid pushing assembly, which is used to drive the piston to move up and down.

[0023] Furthermore, the fluid-pushing assembly includes:

[0024] A connecting rod is vertically fixed to the sliding column, and the lower end of the connecting rod passes through the storage seat and is fixed to the upper end face of the piston.

[0025] An elastic reset structure is provided on the calibration plate and is used to drive the calibration plate to move downward.

[0026] Furthermore, the elastic reset structure includes:

[0027] Ear plate, at least one ear plate is provided and is fixedly connected to the outer wall of the sliding column;

[0028] A guide rod is vertically fixed to the calibration plate, and the guide rod vertically penetrates the ear plate and slides freely.

[0029] An elastic element is disposed between the calibration plate and the ear plate, and elastically abuts against the calibration plate.

[0030] Furthermore, the elastic element is a spring wrapped around the guide rod, with both ends of the spring elastically abutting against the calibration plate and the ear plate, respectively.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] This invention features a telescopic component that extends to position the lifting seat above the top of an external concrete platform, placing the camera above the platform. The camera is then moved by a translation component, allowing it to move along the length of the crack. Simultaneously, the crack width is determined by scale lines on a calibration plate, eliminating the need for workers to climb the concrete platform for inspection, thus reducing safety hazards and improving inspection efficiency.

[0033] This invention, by setting up a storage seat, piston, and liquid-pushing assembly, allows the marking liquid in the storage seat to be squeezed by the piston when the crack width exceeds the tolerance by holding the handle and moving the telescopic column downward in the fixed cylinder. This causes the marking liquid to be sprayed out from the nozzle, making it easy to mark the concrete platform surface where the crack width exceeds the tolerance. This allows subsequent workers to repair the area with the excessive crack width based on the marking.

[0034] This invention uses a motor to drive a gear to rotate, and then through the meshing transmission of the gear and rack, drives the sliding column to move horizontally. This allows the camera to move horizontally at a slow speed, which facilitates long-term detection of crack width. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of a concrete structure surface crack detection device according to the present invention;

[0036] Figure 2 for Figure 1 A schematic diagram of the central structure from the front view angle;

[0037] Figure 3 for Figure 1 The structural diagram omitting the fixed cylinder and telescopic column is shown in the image.

[0038] Figure 4 for Figure 3 A schematic diagram of the structure viewed from below;

[0039] Figure 5 for Figure 3 Cross-sectional view of the structure.

[0040] The following are explanations of the reference numerals in the figures: 1. Base; 2. Fixed cylinder; 3. Waist-shaped hole; 4. Handle; 5. Telescopic column; 6. Motor; 7. Sliding column; 8. Lifting seat; 9. Mounting part; 10. Storage seat; 11. Calibration plate; 12. Gear; 13. Rack part; 14. Ear plate; 15. Guide rod; 16. Connecting rod; 17. Camera; 18. Detection port; 19. Scale line; 20. Spray hole; 21. Roller; 22. Spring; 23. Storage cavity; 24. Piston. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] Please see Figure 1-Figure 5 This utility model provides a technical solution: a concrete structure surface crack detection device, including a base 1, a fixed cylinder 2 vertically welded on the base 1, the fixed cylinder 2 being hollow inside, and a telescopic column 5 coaxially telescopically inserted on the fixed cylinder 2, the telescopic column 5 sliding freely up and down inside the fixed cylinder 2, a handle 4 passing through the lower end of the telescopic column 5, the two ends of the handle 4 passing through the fixed cylinder 2, and an oblong hole 3 for the handle 4 to pass freely through the fixed cylinder 2. In addition, a lifting seat 8 is welded to the upper end of the telescopic column 5, and an installation cavity is opened on the lifting seat 8. The longitudinal section of the installation cavity is T-shaped, and a sliding column 7 is engaged on the upper inner wall of the installation cavity. The base 1 is placed below the concrete platform, and then the worker pushes the handle 4 upwards by hand. The handle 4 drives the telescopic column 5 to move upwards, so that the telescopic column 5 drives the lifting seat 8 to move upwards, and so that the lifting seat 8 moves above the concrete platform.

[0043] The sliding column 7 has a rectangular longitudinal section and slides freely horizontally within the mounting cavity. A gear 12 is horizontally rotatably connected to the lifting seat 8. The gear 12 is located in the lower space of the mounting cavity and rotates freely within the mounting cavity. In addition, a motor 6 is horizontally mounted on the lifting seat 8. The output shaft of the motor 6 is driven by the gear 12. That is, the gear 12 is sleeved on the output shaft of the motor 6. When the motor 6 is powered on and started, it can drive the gear 12 to rotate. Furthermore, a rack portion 13 is provided on the downward-facing side of the sliding column 7. The rack portion 13 meshes with the gear 12. Thus, when the output shaft of the motor 6 rotates, the gear 12 meshes with the rack portion 13, thereby driving the sliding column 7 to move horizontally. A mounting portion 9 is welded to the end of the sliding column 7 away from the lifting seat 8. A camera 17 is mounted on the bottom surface of the mounting portion 9.

[0044] The motor 6 drives the gear 12 to rotate, so that the gear 12 meshes with the rack 13 and drives the sliding column 7 to move horizontally, so that the camera 17 can move horizontally in a straight line. In addition, a connecting rod 16 is vertically welded to one end of the sliding column 7 near the camera 17. The lower end of the connecting rod 16 is connected to a piston 24. A storage seat 10 is sleeved on the piston 24. The storage seat 10 is cylindrical and hollow inside. The piston 24 is engaged in the storage seat 10 and can slide freely up and down. The lower end face of the piston 24 and the inner bottom wall of the storage seat 10 form a storage cavity 23, which stores the marking liquid. A calibration plate 11 is welded to the bottom of the storage seat 10. A roller 21 is installed on the bottom of the calibration plate 11. A notch-shaped detection port 18 is opened on the end of the calibration plate 11 away from the storage seat 10. In addition, a scale line 19 is provided on the top surface of the side of the calibration plate 11 near the storage seat 10. The scale line 19 is evenly spaced along the width direction of the calibration plate 11.

[0045] After the lifting platform 8 moves upward above the concrete platform, the lever 4 is released, allowing the telescopic column 5 to move downward under its own weight, and the roller 21 to contact the top surface of the concrete platform. At the same time, the external power supply is turned on, and the camera 17 starts working. The image captured by the camera 17 is then transmitted to an external display device. The operator views the display device and moves the base 1 accordingly, so that the crack on the concrete platform is located within the detection port 18. Then, the position and orientation of the base 1 are adjusted so that the length direction of the crack is perpendicular to the width direction of the calibration plate 11. By viewing the image on the display device, the operator observes the number of scale lines 19 spanning both sides of the crack width. Since the spacing between two adjacent scale lines 19 is fixed, it is only necessary to observe the number of spanning scale lines 19 to roughly determine the crack width. Simultaneously, the motor 6 is started, causing the camera 17 to move along the length direction of the crack.

[0046] The storage base 10 has a spray hole 20 on its outer wall, with the opening of the spray hole 20 facing the detection port 18. An ear plate 14 is welded to the outer wall of the sliding column 7. A guide rod 15 is vertically welded to the calibration plate 11. The guide rod 15 vertically penetrates the ear plate 14 and slides freely. A spring 22 is wound around the guide rod 15, with its two ends elastically abutting against the calibration plate 11 and the ear plate 14 respectively. When the crack width is observed to exceed the acceptable range (the number of cross-scale lines 19 exceeds the tolerance), the operator only needs to press down on the handle 4. The handle 4 then moves the telescopic column 5 downwards. This causes the sliding column 7 to move downwards, which in turn causes the piston 24 to move downwards. This causes the piston 24 to squeeze the marking liquid in the storage chamber 23, allowing the marking liquid to be sprayed from the nozzle 20 onto the surface of the concrete platform. This sprays the marking liquid onto areas where the crack width exceeds the tolerance, making it easier for subsequent workers to maintain the concrete platform based on the marking liquid. At this time, the spring 22 is in a compressed state and accumulates elastic potential energy. After marking, the lever 4 is released, and the spring 22 changes from a compressed state to an extended state, releasing its elastic potential energy and driving the sliding column 7 to move upwards to reset.

[0047] The working principle of this utility model is as follows: During testing, the base 1 is placed below the concrete platform. Then, the operator pushes the handle 4 upwards, causing the telescopic column 5 to move upwards. This causes the telescopic column 5 to move the lifting seat 8 upwards, moving it above the concrete platform. After the lifting seat 8 reaches the top of the concrete platform, the handle 4 is released, allowing the telescopic column 5 to move downwards under its own weight, causing the roller 21 to contact the top surface of the concrete platform. Simultaneously, the external power supply is connected, and the camera 17 starts working. The image captured by the camera 17 is then transmitted to an external display device. Once the equipment is in place, the staff can view the display device and move the base 1 accordingly so that the crack on the concrete platform is located within the detection port 18. Then, the position and orientation of the base 1 are adjusted so that the length direction of the crack is perpendicular to the width direction of the calibration plate 11. By viewing the image on the display device, the staff can observe the number of scale lines 19 spanning both sides of the crack width. Since the spacing between two adjacent scale lines 19 is fixed, it is only necessary to observe the number of scale lines 19 spanning the crack to roughly determine the crack width. At the same time, the motor 6 is started, causing the camera 17 to move along the length direction of the crack.

[0048] When a crack width is observed to exceed the acceptable range (the number of cross-scale lines 19 exceeds the tolerance), the worker simply needs to press down on the handle 4. The handle 4 drives the telescopic column 5 to move downwards, causing the sliding column 7 to move downwards, which in turn causes the piston 24 to move downwards. This causes the piston 24 to squeeze the marking liquid in the storage chamber 23, allowing the marking liquid to be sprayed from the spray hole 20 onto the surface of the concrete platform. This sprays the marking liquid onto the area where the crack width exceeds the tolerance, making it easier for subsequent workers to maintain the concrete platform based on the marking liquid. At this time, the spring 22 is in a compressed state and accumulates elastic potential energy. After marking, the handle 4 is released, and the spring 22 changes from a compressed state to an extended state, releasing its elastic potential energy and driving the sliding column 7 to move upwards to reset.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting surface cracks in concrete structures, characterized in that, include: Telescopic components; A lifting seat (8) is connected to the telescopic assembly; A translation component is provided on the lifting seat (8) and is used to drive the lifting seat (8) to move horizontally; A camera (17) is connected to the translation component; A calibration plate (11) is connected to the translation component and located below the camera (17). The calibration plate (11) has a notch-shaped detection port (18) and a scale line (19) on its top surface.

2. The concrete structure surface crack detection device according to claim 1, characterized in that, The telescopic component includes: Base (1); A fixed cylinder (2) is vertically fixed to the top of the base (1); Telescopic column (5) is telescopically inserted into the fixed cylinder (2). A handle (4) is provided at the lower end of the telescopic column (5). A waist-shaped hole (3) is provided on the fixed cylinder (2) for the handle (4) to move freely up and down.

3. The concrete structure surface crack detection device according to claim 2, characterized in that, The translation component includes: A sliding column (7) is horizontally inserted through the lifting seat (8) and slides freely. One end of the sliding column (7) along its length is fixedly connected to a mounting part (9), and the camera (17) is mounted at the bottom of the mounting part (9). Gear (12), the gear (12) is rotatably connected to the lifting seat (8), the lifting seat (8) has an installation cavity for the sliding column (7) and gear (12) to pass freely, and the lower surface of the sliding column (7) has a rack part (13) that meshes with the gear (12); The motor (6) is mounted on the lifting seat (8), and the gear (12) is sleeved on the output shaft of the motor (6).

4. The concrete structure surface crack detection device according to claim 1, characterized in that, The calibration plate (11) is equipped with rollers (21) at its bottom.

5. The concrete structure surface crack detection device according to claim 3, characterized in that, The top surface of the calibration plate (11) is fixed with a hollow storage seat (10). A piston (24) that slides freely up and down is engaged inside the storage seat (10). The lower end face of the piston (24) and the bottom wall of the storage seat (10) form a storage cavity (23) for storing the labeling liquid. The outer wall of the storage seat (10) is provided with a spray hole (20). The opening of the spray hole (20) faces the detection port (18). The storage seat (10) is provided with a liquid pushing assembly, which is used to drive the piston (24) to move up and down.

6. The concrete structure surface crack detection device according to claim 5, characterized in that, The fluid-dispensing assembly includes: A connecting rod (16) is vertically fixed to the sliding column (7), and the lower end of the connecting rod (16) passes through the storage seat (10) and is fixed to the upper end face of the piston (24). An elastic reset structure is provided on the calibration plate (11) and is used to drive the calibration plate (11) to move downward.

7. The concrete structure surface crack detection device according to claim 6, characterized in that, The elastic reset structure includes: Ear plate (14), at least one ear plate (14) is provided and is fixed to the outer wall of the sliding column (7); Guide rod (15), the guide rod (15) is vertically fixed to the calibration plate (11), the guide rod (15) vertically penetrates the ear plate (14) and slides freely; An elastic element is disposed between the calibration plate (11) and the ear plate (14) and elastically abuts against the calibration plate (11).

8. The concrete structure surface crack detection device according to claim 7, characterized in that, The elastic element is a spring (22) wrapped around the guide rod (15), and the two ends of the spring (22) elastically abut against the calibration plate (11) and the ear plate (14) respectively in the direction of elastic force.

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