Steel structure installation detection device based on three-dimensional laser scanning

Abstract

The invention discloses a steel structure installation detection device based on three-dimensional laser scanning, and relates to the technical field of steel structure detection, the steel structure installation detection device comprises a base, and the upper end of the base is fixedly provided with a support column; the movable assembly is assembled at the upper end of the base and used for adjusting the whole steel structure; the adjusting assembly is assembled at the upper end of the movable assembly and used for swinging the connecting position of the steel structure; according to the steel structure installation detection device based on three-dimensional laser scanning, the end part of a steel structure is shaken through the adjusting assembly, a dynamic load in an actual use environment can be simulated, local vibration and strain can be further generated, so that hidden dangers such as cracks, corrosion or looseness at a joint are more obvious and easier to detect, and the detection accuracy is improved. Therefore, the health condition of the joint can be evaluated more accurately.

Description

TECHNICAL FIELD

[0001] The present application relates to steel structure detection technology, and in particular to a steel structure installation detection device based on three-dimensional laser scanning. BACKGROUND

[0002] The dimensional accuracy of steel structures is crucial for ensuring the stability, functionality, and durability of the structure. Precise dimensions ensure a tight fit of structural elements, helping to reduce stress concentration and the risk of structural instability. Traditional manual dimensional measurement methods have problems such as time consumption, subjectivity, and errors. In large-scale engineering, these problems can lead to inconsistent measurements and limited engineering progress. Laser scanning technology is valued for its non-contact, high precision, and high efficiency. Through the scanning of laser beams, three-dimensional point cloud data of the components can be captured, providing an accurate basis for dimensional and shape analysis.

[0003] The Chinese invention patent with publication number CN120947484A discloses a high-precision fabricated steel structure installation effect detection device. The device uses hoisting components, winding components, and cables to hoist the detection components to the inside of the steel lining for detection operations without the need for manual entry, improving the safety of the detection process and the accuracy of the detection. The position of the detection components is automatically adjusted by adjusting the arms rotating at the upper end of the balancing component, allowing for comprehensive detection of the steel lining. The detection height is adjusted by winding and unwinding the detection components, improving the automation level and detection efficiency. The inside of the arc-shaped illumination board is illuminated by the lamp panel, avoiding shadows on the detection site and affecting the detection, improving the accuracy of the detection.

[0004] The existing device has the following problems: the steel structure is usually complex in shape and may have different sizes and geometric connections. If there are scanning dead angles in the overall steel structure, it will cause deviation or error in the measurement data. At the same time, it cannot simulate the dynamic load that the structure may encounter in the actual use environment, causing differences between the scanned structure and the actual data. Therefore, a steel structure installation detection device based on three-dimensional laser scanning is developed. SUMMARY

[0005] The purpose of the present application is to provide a steel structure installation detection device based on three-dimensional laser scanning to solve the above-mentioned deficiencies in the prior art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a steel structure installation detection device based on three-dimensional laser scanning, comprising a base, the upper end of the base is fixedly provided with a support column;

[0007] A movable assembly is assembled at the upper end of the base for adjusting the overall steel structure.

[0008] An adjusting assembly is assembled to the upper end of the movable assembly for swinging the steel structure joint;

[0009] The movable assembly comprises a bottom plate slidably connected with the base, and a vertical plate is fixedly arranged on the outer surface of the bottom plate;

[0010] An upper end of the bottom plate is fixedly provided with a protection cylinder, an upper end of the protection cylinder is fixedly provided with a circular ring, and a first annular groove is formed in the outer surface of the circular ring;

[0011] One side of the vertical plate is fixedly provided with a movable block, movable rods are fixedly arranged at both ends of the movable block, arc-shaped blocks are rotatably arranged at the ends of the movable rods, and the outer surface of the arc-shaped blocks is slidably connected with the inner wall of the first annular groove;

[0012] The inner wall of the protection cylinder is fixedly provided with a connecting block, a driving block is rotatably arranged at the end of the connecting block, a cross-shaped block one is rotatably arranged at the end of the driving block, a butt joint block is rotatably arranged at the end of the cross-shaped block one, and a butt joint rod is fixedly arranged at the end of the butt joint block.

[0013] As a further optimization scheme of the present application, a support plate is fixedly arranged on the inner wall of the protection cylinder, a clamping cylinder is rotatably arranged at the end of the support plate, and the inner wall of the clamping cylinder is slidably connected with the outer surface of the butt joint rod.

[0014] As a further optimization scheme of the present application, an active cylinder is arranged above the protection cylinder, a second annular groove is formed in the outer surface of the active cylinder, and the inner wall of the second annular groove is embeddedly and slidably connected with the outer surface of the arc-shaped block.

[0015] As a further optimization scheme of the present application, a locking block is fixedly arranged on the inner wall of the active cylinder, a driving rod is rotatably arranged at the end of the locking block, a cross-shaped block two is rotatably arranged at the end of the driving rod, a transmission block is rotatably arranged at the end of the cross-shaped block two, a transmission rod is fixedly arranged at the end of the transmission block, and the outer surface of the transmission rod is slidably connected with the inner wall of the clamping cylinder.

[0016] As a further optimization scheme of the present application, a supporting plate is rotatably arranged at the end of the active cylinder, and the lower end of the supporting plate is engaged with the outer surface of the end of the driving rod.

[0017] As a further optimization scheme of the present application, the adjusting assembly comprises a fixed plate clamped with the supporting plate, a positioning block is fixedly arranged at the upper end of the fixed plate, and a positioning plate is fixedly arranged on the outer surface of the positioning block.

[0018] As a further optimization of the present invention, a swing plate is fixedly provided at the end of the positioning plate, and a through hole is provided at the end of the swing plate. A turntable is fixedly provided at the end of the positioning block, and a protrusion is fixedly provided at the end of the turntable. The outer surface of the turntable is slidably connected to the inner wall of the through hole.

[0019] As a further optimization of the present invention, a limiting block is fixedly provided at the end of the swing plate, and a limiting groove is provided at the end of the limiting block;

[0020] The inner wall of the defined groove is rotatably provided with a rotating shaft, and a push plate is fixedly provided at the end of the rotating shaft. The outer surface of the push plate is in contact with the outer surface of the protrusion.

[0021] As a further optimization of the present invention, an extension rod is fixedly provided at the end of the rotating shaft away from the push plate, and a locking plate is fixedly provided at the end of the extension rod;

[0022] A guide plate is fixedly provided on one side of the extension rod, and a guide groove is provided at the end of the guide plate. A guide block is slidably provided on the inner wall of the guide groove.

[0023] As a further optimization of the present invention, a snap-fit ​​plate is fixedly provided on one side of the limiting block, a snap-fit ​​groove is provided at the end of the snap-fit ​​plate, a snap-fit ​​block is slidably provided on the inner wall of the snap-fit ​​groove, a connecting plate is rotatably provided at the end of the snap-fit ​​block, and the end of the connecting plate is rotatably connected to the end of the guide block.

[0024] Compared with existing technologies, the steel structure installation inspection device based on three-dimensional laser scanning provided by the present invention has the following advantages:

[0025] The movable components allow for precise adjustment of the support platform's position, enabling the scanning equipment to more accurately target areas of the steel structure that are difficult to reach or have unusual angles. This ensures that each inspection focuses on the critical areas requiring attention, significantly improving inspection accuracy.

[0026] By adjusting the components to shake the ends of the steel structure, dynamic loads in the actual use environment can be simulated, thereby generating local vibrations and strains. This makes potential problems such as cracks, corrosion, or loosening at the connection more obvious and easier to detect, allowing for a more accurate assessment of the health status of the connection.

[0027] Through the synergistic effect of active and adjustable components, dynamic and static detection is combined, which not only improves the accuracy of detection but also simulates the performance of steel structures under actual working conditions. This helps to identify potential problems in advance and ensure structural safety. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0029] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the active component structure provided in an embodiment of the present invention;

[0031] Figure 3 This is a cross-sectional view of the internal structure of an active component provided in an embodiment of the present invention;

[0032] Figure 4 This is a first exploded view of the active component structure provided in an embodiment of the present invention;

[0033] Figure 5 This is a second exploded view of the active component structure provided in an embodiment of the present invention;

[0034] Figure 6 This is a schematic diagram of the adjustment component structure provided in an embodiment of the present invention;

[0035] Figure 7 This is a first exploded view of the adjustment component structure provided in an embodiment of the present invention;

[0036] Figure 8 This is a second exploded view of the adjustment component structure provided in an embodiment of the present invention.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Base; 2. Movable component; 3. Adjustable component; 11. Support column; 21. Base plate; 211. Vertical plate; 22. Protective cylinder; 23. Ring; 231. First annular groove; 24. Movable block; 241. Movable rod; 242. Arc block; 25. Connecting block; 251. Drive block; 252. Cross block one; 26. Connecting block; 261. Connecting rod; 27. Support plate; 271. Snap-fit ​​cylinder; 272. Transmission rod; 273. Transmission block; 28. Movable cylinder; 281. Second annular groove; 28 2. Locking block; 283. Drive rod; 284. Cross block two; 29. ​​Support plate; 31. Fixing plate; 32. Positioning block; 321. Positioning plate; 33. Swing plate; 331. Through hole; 34. Limiting block; 341. Limiting groove; 35. Turntable; 351. Protrusion; 36. Rotating shaft; 361. Push plate; 362. Extension rod; 363. Locking plate; 37. Guide plate; 371. Guide groove; 372. Guide block; 38. Connecting plate; 39. Snap-fit ​​plate; 391. Snap-fit ​​groove; 392. Snap-fit ​​block. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., 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 the invention and for simplifying the description, and do not 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 the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] Example: Please refer to Figures 1-8 A steel structure installation inspection device based on three-dimensional laser scanning includes a base 1, and a support column 11 is fixedly installed at the upper end of the base 1.

[0042] In this design, the inner wall of the support column 11 is equipped with components such as an electric telescopic rod, which have telescopic functions to adjust the height of the end of the support column 11, thereby supporting and lifting the steel structure. A scanning device is installed at the upper end of the base 1 for scanning and recording the steel structure.

[0043] Furthermore, the movable component 2, which is assembled on the upper end of the base 1, is used to adjust the overall steel structure; wherein, the movable component 2 includes a base plate 21 that is slidably connected to the base 1, and an upright plate 211 is fixedly provided on the outer surface of the base plate 21.

[0044] In this embodiment, a sliding groove is provided at the upper end of the base 1, and the inner wall of the sliding groove is slidably connected to the outer surface of the base plate 21, so that the movable component 2 can adjust the position of the steel structure according to the actual situation, making it suitable for steel structures of different sizes. At the same time, the movable block 24 is supported and protected by the upright plate 211 to ensure the stability of the movable block 24.

[0045] Furthermore, a protective cylinder 22 is fixedly installed at the upper end of the base plate 21, and a ring 23 is fixedly installed at the upper end of the protective cylinder 22. A first annular groove 231 is formed on the outer surface of the ring 23. A movable block 24 is fixedly installed on one side of the upright plate 211. Movable rods 241 are fixedly installed at both ends of the movable block 241. An arc-shaped block 242 is rotatably installed at the end of the movable rod 241. The outer surface of the arc-shaped block 242 is slidably connected to the inner wall of the first annular groove 231.

[0046] Specifically, the circular ring 23 is designed to engage with the first annular groove 231 and the arc-shaped block 242, thereby limiting the position of the movable rods 241 at both ends of the movable block 24 and ensuring that the movable rods 241 are not disturbed when they are moved under force.

[0047] The end of the movable rod 241 is equipped with a telescopic device such as an electric telescopic rod, and is connected to an external control device. When the electric telescopic rod is started, it pulls the arc block 242 to move, thereby adjusting the movable cylinder 28 that is slidably set on another arc block 242 to move until it reaches the optimal position and then stops.

[0048] Furthermore, a connecting block 25 is fixedly provided on the inner wall of the protective cylinder 22, a driving block 251 is rotatably provided at the end of the connecting block 25, a cross block 252 is rotatably provided at the end of the driving block 251, a docking block 26 is rotatably provided at the end of the cross block 252, and a docking rod 261 is fixedly provided at the end of the docking block 26.

[0049] Specifically, the end of the drive block 251 is equipped with a device with power output, such as a motor, and is connected to an external control device. When the motor starts, it drives the drive block 251, which is fixedly installed at its output end, to rotate.

[0050] When the drive block 251 rotates, it drives the cross block 252, which is rotatably mounted at its end, to rotate, and simultaneously drives the docking block 26, which is rotatably mounted at the end of the cross block 252, to rotate. Since the docking rod 261 is fixedly mounted on the docking block 26, the docking rod 261 rotates synchronously with the docking block 26.

[0051] Furthermore, a support plate 27 is fixedly provided on the inner wall of the protective cylinder 22, and a snap-fit ​​cylinder 271 is rotatably provided at the end of the support plate 27. The inner wall of the snap-fit ​​cylinder 271 is slidably connected to the outer surface of the connecting rod 261.

[0052] Specifically, the clamping cylinder 271 is supported by the support plate 27, so that after the clamping cylinder 271 is connected to the docking rod 261, it rotates synchronously with the docking rod 261.

[0053] Furthermore, a movable cylinder 28 is provided above the protective cylinder 22. A second annular groove 281 is provided on the outer surface of the movable cylinder 28. The inner wall of the second annular groove 281 is fitted and slidably connected to the outer surface of the arc-shaped block 242.

[0054] Specifically, the movable cylinder 28 is supported and limited by the arc-shaped block 242, and the overall angle of the movable cylinder 28 is adjusted by the movable rod 241 to make it suitable for different scenarios.

[0055] Furthermore, a locking block 282 is fixedly provided on the inner wall of the movable cylinder 28, a drive rod 283 is rotatably provided at the end of the locking block 282, a cross block 284 is rotatably provided at the end of the drive rod 283, a transmission block 273 is rotatably provided at the end of the cross block 284, a transmission rod 272 is fixedly provided at the end of the transmission block 273, and the outer surface of the transmission rod 272 is slidably connected to the inner wall of the snap-fit ​​cylinder 271.

[0056] Specifically, the driving rod 283 is limited and supported by the locking block 282, so that the driving rod 283 rotates around the locking block 282 after being subjected to force.

[0057] At the same time, when the snap-fit ​​cylinder 271 rotates, it drives the transmission rod 272, which is slidably set on its inner wall, to rotate. Since the end of the transmission rod 272 is rotatably connected to the transmission block 273, it works in conjunction with the cross block 284 to drive the drive rod 283 to rotate.

[0058] Furthermore, a support plate 29 is rotatably provided at the end of the movable cylinder 28, and the lower end of the support plate 29 engages with the outer surface of the end of the drive rod 283.

[0059] Specifically, a helical gear is provided at the end of the drive rod 283, and a ring gear corresponding to the helical gear is provided at the lower end of the support plate 29, so that when the drive rod 283 rotates, it drives the support plate 29 to rotate along the end of the movable cylinder 28.

[0060] Furthermore, the adjusting component 3, which is assembled on the upper end of the movable component 2, is used to swing the steel structure connection; the adjusting component 3 includes a fixed plate 31 that is snapped into the support plate 29, a positioning block 32 is fixedly provided on the upper end of the fixed plate 31, and a positioning plate 321 is fixedly provided on the outer surface of the positioning block 32.

[0061] In this embodiment, the end of the fixing plate 31 is provided with bolts and other fixing components to lock the fixing plate 31 onto the support plate 29. At the same time, it works with the positioning block 32 to support the positioning plate 321, so that the positioning plate 321 remains stable as a whole.

[0062] Furthermore, a swing plate 33 is fixedly provided at the end of the positioning plate 321, and a through hole 331 is provided at the end of the swing plate 33. A turntable 35 is fixedly provided at the end of the positioning block 32, and a protrusion 351 is fixedly provided at the end of the turntable 35. The outer surface of the turntable 35 is slidably connected to the inner wall of the through hole 331.

[0063] Specifically, the inner wall of the turntable 35 is equipped with a motor or other power output device, which is connected to an external control device. When the motor starts, it drives the entire turntable 35 to rotate, and synchronously drives the protrusion 351 fixed at its end to rotate. The protrusion 351 is located near the edge of the turntable 35.

[0064] Furthermore, a limiting block 34 is fixedly provided at the end of the swing plate 33, and a limiting groove 341 is provided at the end of the limiting block 34; a rotating shaft 36 is rotatably provided on the inner wall of the limiting groove 341, and a push plate 361 is fixedly provided at the end of the rotating shaft 36, with the outer surface of the push plate 361 fitting against the outer surface of the protrusion 351.

[0065] Specifically, the rotating shaft 36 is supported by the limiting groove 341 on the limiting block 34, so that the rotating shaft 36 rotates around the inner wall of the limiting groove 341 when it is subjected to force.

[0066] As the protrusion 351 rotates with the turntable 35, it repeatedly presses the push plate 361, causing the push plate 361 to rotate. A torsion spring is provided on the outer surface of the rotating shaft 36. One end of the torsion spring is connected to the rotating shaft 36, and the other end is connected to the limiting block 34, thereby causing the rotating shaft 36 to swing repeatedly.

[0067] Furthermore, an extension rod 362 is fixedly provided at the end of the rotating shaft 36 away from the push plate 361, and a locking plate 363 is fixedly provided at the end of the extension rod 362; a guide plate 37 is fixedly provided on one side of the extension rod 362, and a guide groove 371 is provided at the end of the guide plate 37, and a guide block 372 is slidably provided on the inner wall of the guide groove 371.

[0068] Specifically, when the rotating shaft 36 swings, it drives the extension rod 362, which is fixedly installed at its end, to swing, thereby synchronously driving the locking plate 363, which is fixedly installed at its end, to move. The locking plate 363 is equipped with a clamp or other fixing components at its end for locking the steel structure.

[0069] When the extension rod 362 swings, it synchronously drives the guide plate 37 at its end to move, and cooperates with the guide groove 371 opened at the end of the guide plate 37 to limit the guide block 372.

[0070] Furthermore, a snap-fit ​​plate 39 is fixedly provided on one side of the limiting block 34, and a snap-fit ​​groove 391 is provided at the end of the snap-fit ​​plate 39. A snap-fit ​​block 392 is slidably provided on the inner wall of the snap-fit ​​groove 391, and a connecting plate 38 is rotatably provided at the end of the snap-fit ​​block 392. The end of the connecting plate 38 is rotatably connected to the end of the guide block 372.

[0071] Specifically, when the guide block 372 moves with the guide plate 37, it works with the connecting plate 38 to drive the snap block 392 to move along the inner wall of the snap groove 391, thereby limiting the extension rod 362 and preventing the steel structure from swinging significantly.

[0072] The control device can choose a microcontroller as the control terminal. In this embodiment, the microcontroller is a typical embedded microcontroller unit, consisting of an arithmetic logic unit (ALU), a controller, memory, input / output devices, etc., essentially a miniature computer. Compared to general-purpose microprocessors used in personal computers, it emphasizes self-sufficiency (no external hardware required) and cost savings. Its biggest advantage is its small size, allowing it to be placed inside the instrument, but it has limited storage capacity, simple input / output interfaces, and low power consumption.

[0073] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A steel structure installation inspection device based on three-dimensional laser scanning, characterized in that, Includes a base (1), and a support column (11) is fixedly provided at the upper end of the base (1); The active component (2), which is assembled on the upper end of the base (1), is used to adjust the overall steel structure; Adjustment component (3), which is assembled at the upper end of the movable component (2), is used to swing the steel structure connection; The active component (2) includes a base plate (21) that is slidably connected to the base (1), and an upright plate (211) is fixedly provided on the outer surface of the base plate (21). A protective cylinder (22) is fixedly installed at the upper end of the base plate (21), and a ring (23) is fixedly installed at the upper end of the protective cylinder (22). A first annular groove (231) is opened on the outer surface of the ring (23). A movable block (24) is fixedly provided on one side of the upright plate (211). Movable rods (241) are fixedly provided at both ends of the movable block (24). An arc-shaped block (242) is rotatably provided at the end of the movable rod (241). The outer surface of the arc-shaped block (242) is slidably connected to the inner wall of the first annular groove (231). The inner wall of the protective cylinder (22) is fixedly provided with a connecting block (25), the end of the connecting block (25) is rotatably provided with a driving block (251), the end of the driving block (251) is rotatably provided with a cross block (252), the end of the cross block (252) is rotatably provided with a docking block (26), and the end of the docking block (26) is fixedly provided with a docking rod (261).

2. The steel structure installation inspection device based on three-dimensional laser scanning according to claim 1, characterized in that, The inner wall of the protective cylinder (22) is fixedly provided with a support plate (27), and the end of the support plate (27) is rotatably provided with a snap-fit ​​cylinder (271). The inner wall of the snap-fit ​​cylinder (271) is slidably connected to the outer surface of the connecting rod (261).

3. The steel structure installation inspection device based on three-dimensional laser scanning according to claim 2, characterized in that, A movable cylinder (28) is provided above the protective cylinder (22). A second annular groove (281) is provided on the outer surface of the movable cylinder (28). The inner wall of the second annular groove (281) is fitted and slidably connected to the outer surface of the arc block (242).

4. The steel structure installation inspection device based on three-dimensional laser scanning according to claim 3, characterized in that, A locking block (282) is fixedly provided on the inner wall of the movable cylinder (28). A drive rod (283) is rotatably provided at the end of the locking block (282). A cross block (284) is rotatably provided at the end of the drive rod (283). A transmission block (273) is rotatably provided at the end of the cross block (284). A transmission rod (272) is fixedly provided at the end of the transmission block (273). The outer surface of the transmission rod (272) is slidably connected to the inner wall of the snap-fit ​​cylinder (271).

5. The steel structure installation inspection device based on three-dimensional laser scanning according to claim 4, characterized in that, The end of the movable cylinder (28) is rotatably provided with a support plate (29), and the lower end of the support plate (29) engages with the outer surface of the end of the drive rod (283).

6. The steel structure installation inspection device based on three-dimensional laser scanning according to claim 1, characterized in that, The adjustment component (3) includes a fixing plate (31) that is snapped into the tray (29). A positioning block (32) is fixedly provided on the upper end of the fixing plate (31), and a positioning plate (321) is fixedly provided on the outer surface of the positioning block (32).

7. The steel structure installation inspection device based on three-dimensional laser scanning according to claim 6, characterized in that, The end of the positioning plate (321) is fixedly provided with a swing plate (33), the end of the swing plate (33) is provided with a through hole (331), the end of the positioning block (32) is fixedly provided with a turntable (35), the end of the turntable (35) is fixedly provided with a protrusion (351), and the outer surface of the turntable (35) is slidably connected to the inner wall of the through hole (331).

8. The steel structure installation inspection device based on three-dimensional laser scanning according to claim 7, characterized in that, A limiting block (34) is fixedly provided at the end of the swing plate (33), and a limiting groove (341) is provided at the end of the limiting block (34). The inner wall of the limiting groove (341) is rotatably provided with a rotating shaft (36), and a push plate (361) is fixedly provided at the end of the rotating shaft (36). The outer surface of the push plate (361) is in contact with the outer surface of the protrusion (351).

9. A steel structure installation inspection device based on three-dimensional laser scanning according to claim 8, characterized in that, An extension rod (362) is fixedly provided at one end of the rotating shaft (36) away from the push plate (361), and a locking plate (363) is fixedly provided at the end of the extension rod (362). A guide plate (37) is fixedly provided on one side of the extension rod (362), and a guide groove (371) is provided at the end of the guide plate (37). A guide block (372) is slidably provided on the inner wall of the guide groove (371).

10. A steel structure installation inspection device based on three-dimensional laser scanning according to claim 9, characterized in that, A snap-fit ​​plate (39) is fixedly provided on one side of the limiting block (34). A snap-fit ​​groove (391) is provided at the end of the snap-fit ​​plate (39). A snap-fit ​​block (392) is slidably provided on the inner wall of the snap-fit ​​groove (391). A connecting plate (38) is rotatably provided at the end of the snap-fit ​​block (392). The end of the connecting plate (38) is rotatably connected to the end of the guide block (372).

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