Construction engineering crack detection device and method

Abstract

The invention relates to the technical field of construction engineering, and particularly discloses a construction engineering crack detection device and method. The climbing structure is mounted on the base; the first moving assembly is mounted on the climbing structure; the surrounding assembly is mounted on the first moving assembly; the second moving assembly is mounted on the encircling assembly; the detection assembly is mounted on the second moving assembly; according to the construction engineering crack detection device and method, the first moving assembly is based on a climbing structure, the rotating motion of the first driving device is converted into the vertical linear motion of the mounting shell along the guide rail through worm and gear transmission, and the second moving assembly is connected with the mounting shell through the whole circular gear ring formed by splicing the surrounding assemblies. The second driving device drives the driving gear to rotate to realize the circular motion of the moving shell around the stone column, so that the two cooperate to enable the detection assembly to form a spiral track to completely cover the outer peripheral surface of the stone column, the missing detection is avoided, the manual intervention is reduced, and the detection efficiency and accuracy are improved.

Description

Technical Field

[0001] This invention relates to the field of construction engineering technology, specifically to a device and method for detecting cracks in construction projects. Background Technology

[0002] In the field of construction engineering, stone columns, as important load-bearing and decorative components, are widely used in ancient building restoration, large stadium construction, bridge piers, and other scenarios. During long-term service, stone columns are susceptible to surface and internal cracks due to environmental factors (such as temperature changes, humidity fluctuations, and weathering erosion), loads (such as long-term accumulation of static loads and dynamic impacts), and construction defects (such as insufficient compaction and unreasonable reinforcement). If these cracks are not detected and treated in time, they will gradually expand, seriously threatening the structural safety and durability of the stone column, and even causing engineering accidents. Currently, crack detection is usually carried out using ultrasonic testing instruments. However, when detecting cracks in circular stone columns, existing ultrasonic testing instruments cannot be adapted to the curved surface of the circular stone column to achieve circumferential detection.

[0003] During testing, the angle and position of the equipment need to be adjusted frequently by hand. This is not only cumbersome, but also prone to errors due to deviations or omissions in the testing angle, resulting in incomplete and inaccurate test data that cannot fully reflect the distribution of cracks and the degree of damage to the stone pillar, leaving hidden dangers for the structural safety assessment of the construction project. Summary of the Invention

[0004] A construction crack detection device of the present invention includes: Base; The climbing structure is mounted on the base. A first movable component is mounted on the climbing structure, and the first movable component is capable of moving vertically on the climbing structure. A circumferential assembly, mounted on the first movable assembly, is used to surround the outer circumference of the circular stone column; The second moving component is mounted on the wrap-around component; The detection component is mounted on the second moving component, which can move the detection component on the circumferential component so that the detection component can perform crack detection on the circular stone column.

[0005] The climbing structure includes a guide rail, which is vertically mounted on the base. A climbing rack is vertically arranged on the guide rail. A first moving component cooperates with the climbing rack and can slide with the guide rail.

[0006] The first moving component includes a mounting housing, with guide rollers symmetrically and rotatably mounted on both sides of the mounting housing. The guide rollers are disposed within a guide rail and are slidably engaged. A worm gear is rotatably mounted inside the mounting housing and meshes with a climbing rack. A first driving device is installed inside the mounting housing, with a worm coaxially mounted on the driving end of the first driving device and meshing with the worm gear.

[0007] The circumferential assembly includes two semicircular rings that are movably joined together to form a circle. The inner walls of each semicircular ring are equipped with semicircular toothed rings. When the two semicircular rings are joined together to form a circle, the semicircular toothed rings on them can form a complete circular toothed ring. The second moving assembly cooperates with the semicircular toothed rings. One semicircular ring is mounted on the mounting housing. Each semicircular ring has a positioning groove. The second moving assembly can slide and cooperate with the positioning groove.

[0008] The second moving component includes a moving housing, a detection component mounted on the moving housing, a second driving device installed inside the moving housing, a driving gear coaxially mounted on the driving end of the second driving device, the driving gear meshing with a semi-circular gear ring, a positioning rod installed at the bottom of the moving housing, the positioning rod being installed in a positioning groove, and the positioning rod being able to slide with the positioning groove.

[0009] The testing assembly includes a mounting plate, which is mounted on a movable housing, and multiple testing devices are evenly mounted on the mounting plate.

[0010] The upper surface of the base is symmetrically equipped with mounting columns, and multiple counterweights are movably mounted on the mounting columns.

[0011] The number of climbing structures must be at least one set, and the climbing structures must be able to be spliced ​​together.

[0012] A control unit is installed on the base, which is used to send start commands to the first drive device, the second drive device, and multiple detection devices.

[0013] A method for detecting cracks in construction projects includes the following steps: S1: The control unit sends instructions to the first drive device, the second drive device, and multiple detection devices, so that the first drive device, the second drive device, and multiple detection devices receive the start instruction and begin to work; S2: The first drive device drives the worm gear, which in turn drives the turbine to rotate. Under the meshing of the worm wheel and the climbing rack, the mounting housing and the second moving component move vertically. At the same time, the second drive device drives the drive gear to rotate. Through the meshing of the drive gear and the semi-circular ring gear, the moving housing and the detection component move circumferentially along the circle formed by the semi-circular rings. Thus, multiple detection devices perform detection work around the circular stone pillar surrounded by the semi-circular rings.

[0014] The beneficial effects of this invention are: In use, the first moving component, based on a climbing structure, uses a worm gear transmission to convert the rotational motion of the first drive device into the vertical linear motion of the mounting housing along the guide rail. The second moving component, relying on the circular toothed ring formed by the circumferential components, drives the drive gear to rotate through the second drive device. Combined with the guidance of the positioning rod and positioning groove, it realizes the circular motion of the moving housing around the stone pillar. Thus, the two work together to make the detection component form a spiral trajectory, fully covering the outer circumference of the stone pillar, avoiding missed detections, reducing manual intervention, and improving detection efficiency and accuracy.

[0015] The climbing structure features a modular, segmented design. The climbing racks are spliced ​​together to ensure continuous meshing, and the overall length can be flexibly adjusted after splicing. This splicing function can increase the overall length of the climbing structure, adapting to the inspection needs of circular stone pillars of various lengths. At the same time, the counterweights symmetrically mounted on the pillars at the base can be flexibly stacked. When splicing multiple segments of the climbing structure increases the weight at the top, the gravity of the counterweights creates a counterbalancing torque to offset the risk of tipping over. Furthermore, the counterweights are positioned by a concave-convex structure to prevent displacement, ensuring the stability of the base and laying the foundation for accurate inspection. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention.

[0018] Figure 3 This is a schematic diagram of the climbing structure of the present invention.

[0019] Figure 4 This is a schematic diagram of the structure of the first moving component of the present invention.

[0020] Figure 5 This is a schematic diagram of the structure of the encircling component of the present invention.

[0021] Figure 6 This is the second schematic diagram of the encircling component structure of the present invention.

[0022] Figure 7 This is a schematic diagram of the structure of the second moving component of the present invention.

[0023] Figure 8 This is a schematic diagram of the detection component structure of the present invention.

[0024] Figure label: 1. Base; 2. Climbing structure; 3. First moving component; 4. Encircling component; 5. Second moving component; 6. Detection component; 7. Guide rail; 8. Climbing rack; 9. Mounting housing; 10. Guide roller; 11. Worm gear; 12. First drive device; 13. Worm; 14. Semicircular ring; 15. Semicircular gear ring; 16. Positioning groove; 17. Moving housing; 18. Second drive device; 19. Drive gear; 20. Positioning rod; 21. Mounting plate; 22. Detection equipment; 23. Mounting column; 24. Counterweight; 25. Control unit. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] like Figures 1 to 8 As shown, a construction crack detection device of the present invention includes a base 1, a climbing structure 2 mounted on the base 1, a first moving component 3 mounted on the climbing structure 2, the first moving component 3 being movable vertically on the climbing structure 2, a circumferential component 4 mounted on the first moving component 3, the circumferential component 4 being used to surround the outer circumference of a circular stone column, a second moving component 5 mounted on the circumferential component 4, and a detection component 6 mounted on the second moving component 5, the second moving component 5 being able to drive the detection component 6 to move on the circumferential component 4, so that through the joint movement of the first moving component 3 and the second moving component 5, the detection component 6 can perform a comprehensive detection operation around the outer circumference of the circular stone column, thereby detecting the cracks in the circular stone column without manual intervention, improving work efficiency, and improving detection accuracy.

[0027] like Figure 1-4As shown, the climbing structure 2 includes a guide rail 7, which is vertically mounted on the base 1. A climbing rack 8 is vertically mounted on the guide rail 7. A first moving component 3 engages with the climbing rack 8 and can slide with the guide rail 7. The first moving component 3 includes a mounting housing 9. Guide rollers 10 are symmetrically and rotatably mounted on both sides of the mounting housing 9. The guide rollers 10 are disposed inside the guide rail 7 and can slide with it. A worm gear 11 is rotatably mounted inside the mounting housing 9 and meshes with the climbing rack 8. A first driving device 12 is installed inside the mounting housing 9. The first driving device 12 includes, but is not limited to, a servo motor or a stepper motor. A worm gear 11 is coaxially mounted on the driving end of the first driving device 12. The worm gear 13 meshes with the worm wheel 11. After the first drive device 12 is started, its output shaft drives the coaxially connected worm gear 13 to rotate. The worm gear 13 and the worm wheel 11 form a worm wheel 11 worm gear 13 transmission. Due to the meshing relationship between the worm wheel 11 and the climbing rack 8, the rotational motion of the worm wheel 11 is converted into the linear motion of the mounting housing 9 along the guide rail 7. At the same time, the guide roller 10 rolls along the groove, which not only restricts the horizontal offset of the mounting housing 9 and ensures that it always moves in the vertical direction, but also reduces the motion resistance and improves the lifting stability by replacing the sliding friction with rolling friction. This drives the circumferential assembly 4, the second moving assembly 5 and the detection assembly 6 connected to the mounting housing 9 to lift synchronously. The number of climbing structures 2 is at least one set, set along the vertical direction. The climbing structure 2 has a splicing function. After splicing, the guide rail 7 and the climbing rack 8 are precisely connected to ensure stable engagement of the turbine. This drives the mounting housing 9 to continuously rise and fall along the spliced ​​climbing structure 2 without any transmission interruption. Thus, through the splicing function, the total length of the climbing structure 2 can be increased to meet the inspection needs of circular stone pillars of various lengths.

[0028] like Figure 1 , Figure 5 , Figure 6 , Figure 7As shown, the circumferential assembly 4 includes two semicircular rings 14, which are movably spliced ​​to form a circle. Semicircular toothed rings 15 are installed on the inner walls of each semicircular ring 14. When the two semicircular rings 14 are spliced ​​to form a circle, the semicircular toothed rings 15 on them can form a complete circular toothed ring. The second moving assembly 5 cooperates with the semicircular toothed rings 15. One semicircular ring 14 is installed on the mounting housing 9. Positioning grooves 16 are provided on each semicircular ring 14, and the second moving assembly 5 can slide with the positioning grooves 16. The second moving assembly 5 includes a moving shell 17, and a detection assembly 6 is installed on the moving shell 17. A second driving device 18 is installed inside the moving shell 17. The second driving device 18 includes, but is not limited to, a servo motor and a stepper motor. A driving gear 19 is coaxially installed on the driving end of the second driving device 18. The driving gear 19 meshes with the semicircular toothed rings 15. A positioning rod 20 is installed at the bottom of the moving shell 17. The positioning rod 20 is installed in the positioning groove 16, and the positioning rod 20 can slide with the positioning groove 16.

[0029] Before inspecting the gaps in the stone pillar, first move the base 1 to one side of the stone pillar, so that the fixed semicircular ring 14, which is fixed to the mounting housing 9, is positioned on the side of the stone pillar. Then, connect the two movable semicircular rings 14 into a single ring using bolts or clips. The resulting ring surrounds the stone pillar, and the stone pillar and the assembled ring are placed coaxially. After the semicircular rings 14 are assembled, the semicircular toothed rings 15 on their inner walls will form a complete circular toothed ring with continuous and misaligned teeth. The positioning grooves 16 will also connect, forming a circular groove, thus completing the initial docking operation. Then, the second drive device 18 can be activated, causing its drive end to drive the drive gear 19 to rotate. Under the meshing setting of the drive gear 19 and the semi-circular toothed ring 15 to form a complete circular toothed ring, according to the gear transmission principle and the sliding cooperation between the positioning rod 20 and the positioning groove 16, the rotational motion of the drive gear 19 is converted into the circumferential translational motion of the moving shell 17 along the complete circular ring, driving the detection component 6 installed on the moving shell 17 to rotate at a constant speed around the outer surface of the stone pillar. Combined with the vertical lifting and lowering of the first moving component 3, a spiral detection trajectory is formed, which can fully cover the outer surface of the stone pillar, ensuring the accuracy of crack detection and improving work efficiency.

[0030] like Figure 1 , Figure 7 , Figure 8 As shown, the detection component 6 includes a mounting plate 21, which is mounted on the movable shell 17. Multiple detection devices 22 are evenly mounted on the mounting plate 21. The detection devices 22 include, but are not limited to, ultrasonic probes. When the movable shell 17 is driven to rotate around the circumference of the stone pillar by the second driving device 18, ultrasonic probes continuously emit ultrasonic signals to the stone pillar. The echo signals reflected from the inside of the stone pillar are received by an externally connected instrument. The echo signals are used to determine whether there is a crack at that location, and the size or opening width of the crack.

[0031] like Figure 2 As shown, mounting columns 23 are symmetrically installed on the upper surface of the base 1. Multiple counterweights 24 are movably mounted on the mounting columns 23. The counterweights 24 can be freely stacked along the axial direction of the mounting columns 23. When multiple climbing structures 2 need to be spliced ​​together and the base 1 needs more weight to avoid the risk of tipping over, the counterweights 24 can be stacked to ensure the stability of the base 1 and optimize the balance effect. Furthermore, casters can be installed at the four corners of the bottom of the base 1, so that the operator can easily move the device to the working position using the casters. The casters have a two-way locking mechanism to ensure that the device remains stable after it is moved to the working position.

[0032] like Figure 2 , Figure 4 , Figure 7 , Figure 8 As shown, a control unit 25 is provided on the base 1. The control unit 25 is used to send the start command of the operator to the first drive device 12, the second drive device 18 and multiple detection devices 22.

[0033] like Figures 1 to 8 As shown, a method for detecting cracks in construction projects according to the present invention includes the following steps: S1: The control unit 25 sends instructions to the first drive device 12, the second drive device 18 and the multiple detection devices 22, so that the first drive device 12, the second drive device 18 and the multiple detection devices 22 receive the start instruction and start working; S2: The first drive device 12 drives the worm gear 13, which in turn drives the turbine to rotate. Under the meshing of the worm wheel 11 and the climbing rack 8, the mounting housing 9 and the second moving component 5 move vertically. At the same time, the second drive device 18 drives the drive gear 19 to rotate. Through the meshing of the drive gear 19 and the semi-circular ring 15, the moving housing 17 and the detection component 6 move circumferentially along the circle formed by the semi-circular ring 14. Thus, multiple detection devices 22 perform detection work around the circular stone pillar surrounded by the semi-circular ring 14.

[0034] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A crack detection device for construction projects, characterized in that, include: Base (1); The climbing structure (2) is installed on the base (1); The first moving component (3) is mounted on the climbing structure (2) and can move vertically on the climbing structure (2); A circumferential assembly (4) is mounted on a first movable assembly (3) for surrounding the outer circumference of a circular stone pillar; The second moving component (5) is mounted on the circumferential component (4); The detection component (6) is installed on the second moving component (5), which can drive the detection component (6) to move on the circumferential component (4) so ​​that the detection component (6) can detect cracks in the circular stone column.

2. The construction engineering crack detection device according to claim 1, characterized in that, The climbing structure (2) includes a guide rail (7), which is vertically mounted on the base (1). A climbing rack (8) is vertically arranged on the guide rail (7). The first moving component (3) cooperates with the climbing rack (8) and can slide with the guide rail (7).

3. The construction engineering crack detection device according to claim 2, characterized in that, The first moving component (3) includes a mounting housing (9), on which guide rollers (10) are symmetrically and rotatably mounted. The guide rollers (10) are disposed in the guide rail (7) and can slide. A worm gear (11) is rotatably mounted inside the mounting housing (9). The worm gear (11) meshes with a climbing rack (8). A first driving device (12) is installed inside the mounting housing (9). A worm (13) is coaxially mounted on the driving end of the first driving device (12). The worm (13) meshes with the worm gear (11).

4. A construction crack detection device according to claim 3, characterized in that, The circumferential assembly (4) includes two semicircular rings (14), which are movably spliced ​​together to form a circle. The inner walls of each semicircular ring (14) are equipped with semicircular toothed rings (15). When the two semicircular rings (14) are spliced ​​together to form a circle, the semicircular toothed rings (15) on them can form a complete circular toothed ring. The second moving assembly (5) cooperates with the semicircular toothed rings (15). One of the semicircular rings (14) is installed on the mounting housing (9). Each semicircular ring (14) is provided with a positioning groove (16). The second moving assembly (5) can slide and cooperate with the positioning groove (16).

5. A construction crack detection device according to claim 4, characterized in that, The second moving component (5) includes a moving shell (17), the detection component (6) is mounted on the moving shell (17), a second driving device (18) is installed inside the moving shell (17), a driving gear (19) is coaxially mounted on the driving end of the second driving device (18), the driving gear (19) meshes with a semi-circular toothed ring (15), a positioning rod (20) is installed at the bottom of the moving shell (17), the positioning rod (20) is installed in the positioning slide groove (16), and the positioning rod (20) can slide with the positioning slide groove (16).

6. A construction crack detection device according to claim 5, characterized in that, The detection component (6) includes a mounting plate (21), which is disposed on the movable shell (17), and a plurality of detection devices (22) are uniformly mounted on the mounting plate (21).

7. A construction crack detection device according to claim 6, characterized in that, The base (1) has mounting columns (23) symmetrically installed on its upper surface, and multiple counterweights (24) are movably mounted on the mounting columns (23).

8. A construction crack detection device according to claim 7, characterized in that, The number of the climbing structures (2) is at least one set, and the climbing structures (2) have splicing function.

9. A construction crack detection device according to claim 8, characterized in that, The base (1) is provided with a control unit (25), which is used to send a start command to the first drive device (12), the second drive device (18) and multiple detection devices (22).

10. A method for detecting cracks in construction projects according to claim 9, characterized in that, It includes the following steps: S1: The control unit (25) sends instructions to the first drive unit (12), the second drive unit (18) and the multiple detection devices (22) so that the first drive unit (12), the second drive unit (18) and the multiple detection devices (22) receive the start instructions and begin to work; S2: The first drive device (12) drives the worm (13), which drives the turbine to rotate. Under the meshing of the worm wheel (11) and the climbing rack (8), the mounting housing (9) and the second moving component (5) move vertically. At the same time, the second drive device (18) drives the drive gear (19) to rotate. Through the meshing of the drive gear (19) and the semi-circular toothed ring (15), the moving housing (17) and the detection component (6) move circumferentially along the circle formed by the semi-circular ring (14). Thus, multiple detection devices (22) perform detection work around the circular stone pillar surrounded by the semi-circular ring (14).

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