A displacement laser monitoring device for building steel structure

Abstract

This invention relates to the field of building steel structure monitoring technology, and more particularly to a laser displacement monitoring device for building steel structures. The device includes a mounting slot, fastening bolts, a connecting ring, and a laser monitor. A rotating mechanism is provided between the connecting ring and the laser monitor. A movable mounting mechanism is provided inside the mounting slot. The rotating mechanism includes a connecting column, a support rod fixedly connected to the bottom of the connecting column, and a rotating ball fixedly connected to the bottom of the support rod. A rotating groove is formed in the inner bottom wall of the connecting ring. A rotating disk is fixedly connected to the outer side of the connecting ring. A movable rod is fixedly connected to the tail end of the connecting column. A movable groove is formed inside the rotating disk. This invention allows for precise adjustment and fixation of the laser monitor's rotation angle. The monitoring direction can be adjusted without disassembling the device, providing comprehensive coverage of the steel structure's displacement monitoring area, reducing blind spots, and improving the overall comprehensiveness of monitoring.

Description

Technical Field

[0001] This invention relates to the field of building steel structure monitoring technology, specifically a laser monitoring device for displacement of building steel structures. Background Technology

[0002] With the rapid development of the modern construction industry, steel structures, with their excellent characteristics such as high strength, light weight, and fast construction speed, have been widely used in various engineering fields such as super high-rise buildings, large stadiums, bridges and industrial facilities, becoming one of the core structural forms of modern infrastructure construction. However, during long-term service, steel structures are inevitably affected by external environmental factors such as load, temperature changes, foundation settlement, material aging, wind vibration, and earthquakes, which can easily cause small displacements. If the displacement exceeds the design allowable range, it will directly threaten the safety and functionality of the structure, and may even cause catastrophic safety accidents. Therefore, accurate and comprehensive displacement monitoring of steel structures is crucial and has become one of the core requirements in the field of engineering safety. In terms of monitoring range, conventional laser monitoring devices mostly have fixed monitoring angles and are not equipped with flexible and adjustable angle control mechanisms. Once the monitoring direction is determined, it is often difficult to make flexible adjustments in multiple dimensions and angles according to actual monitoring needs. This relatively fixed design can easily lead to obvious monitoring blind spots in the monitoring area, making it difficult to fully cover all key monitoring points of the steel structure. Core areas that are prone to displacement, such as the joints of the steel structure, stress concentration points, and cantilever ends, are often unable to be accurately monitored due to angle limitations.

[0003] Therefore, a laser monitoring device for displacement of building steel structures is proposed to address the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a laser monitoring device for displacement of building steel structures to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A laser monitoring device for displacement of a building steel structure includes a mounting slot, fastening bolts, a connecting ring, and a laser monitor. A rotating mechanism is provided between the connecting ring and the laser monitor, and a movable installation mechanism is provided inside the mounting slot. The rotating mechanism includes a connecting column, a support rod fixedly connected to the bottom of the connecting column, a rotating ball fixedly connected to the bottom of the support rod, a rotating groove in the inner bottom wall of the connecting ring, a rotating disk fixedly connected to the outer side of the connecting ring, a moving rod fixedly connected to the tail end of the connecting column, a moving groove in the interior of the rotating disk, and a return spring fixedly connected to the outer side of the moving rod. The mobile installation mechanism includes a micro motor, the output end of which is fixedly connected to a lead screw, a moving block is threaded to the outer side of the lead screw, an installation plate is fixedly connected to the top of the moving block, and a sliding groove is provided on the top of the installation slot.

[0006] As a further optimization of the present invention, the mounting plate has an insertion hole inside, a connecting rod is provided inside the insertion hole, a connecting screw is fixedly connected to one end of the connecting rod, a mounting bolt is threaded to the outer side of the connecting screw, a limit cover is fixedly connected to the end of the connecting rod away from the connecting screw, and a snap-fit ​​post is fixedly connected to the top of the movable block, with an installation hole inside the snap-fit ​​post.

[0007] As a further optimization of the present invention, the outer side of the rotating disc is provided with a threaded tube, the inner thread of the threaded tube is connected to a push screw, the outer side of the push screw is fixedly connected to a transmission rod, and the outer side of the moving rod is fixedly connected to a rotating tube.

[0008] As a further optimization of the present invention, the fastening bolts are evenly distributed in the side wall of the mounting slot, the laser monitor is located outside the connecting ring, and the connecting ring is positioned above the mounting slot, and the connecting post is fixedly connected to the outside of the laser monitor.

[0009] As a further optimization of the present invention, the support rod and the rotating ball are evenly distributed on the outside of the connecting column, and the rotating ball is rotatably engaged inside the rotating groove, and the end of the moving rod away from the connecting column is slidably connected inside the moving groove.

[0010] As a further optimization of the present invention, the following features are provided: the end of the reset spring away from the moving rod is fixedly connected to the inner wall of the moving groove; the lead screw is rotatably connected to the inside of the slide groove; the micro motor is fixedly connected to the outside of the mounting slot; and the moving block is symmetrically and slidably connected to the inside of the slide groove.

[0011] As a further optimization of the present invention, the snap-fit ​​post is movably connected inside the through hole, the connecting rod passes through the inside of the mounting hole, and the limiting cover is located outside the mounting plate.

[0012] As a further optimization of the present invention, the connecting screw is located on the outside of the mounting plate, and the mounting bolt is tightly attached to the outside of the through hole.

[0013] As a further optimization of the present invention, the push screw and the transmission rod are movably connected to the outside of the rotating disc, and the end of the transmission rod away from the push screw is rotatably engaged inside the rotating tube.

[0014] Compared with the prior art, the beneficial effects of the present invention are: In this invention, a micro motor drives a lead screw to rotate in the movable installation mechanism, causing the moving block to slide along the slide groove. This, in turn, causes the top mounting plate and the laser monitor to move laterally. At the same time, the mounting plate and the moving block can be finely adjusted in the longitudinal and local positions through the cooperation of the locking post, connecting rod and mounting bolts. This ensures that the laser monitor can be accurately aligned with the monitoring point, avoids inaccurate monitoring data due to installation deviation, and improves monitoring accuracy.

[0015] In this invention, the device features flexible angle rotation, expanding the monitoring range and adapting to monitoring needs in different scenarios. In the rotation mechanism, the rotating ball at the bottom of the connecting column engages in the rotating groove of the connecting ring, enabling multi-directional rotation. Simultaneously, by rotating the push screw on the outside of the rotating disk, the transmission rod is driven to slide along the moving groove. Combined with the elasticity of the return spring, the rotation angle of the laser monitor can be precisely adjusted and fixed. The monitoring direction can be adjusted without disassembling the device, comprehensively covering the displacement monitoring area of ​​the steel structure, reducing blind spots, and improving the comprehensiveness of monitoring.

[0016] In this invention, the device is designed for easy disassembly, reducing the difficulty and cost of installation, maintenance, and relocation. In the mobile installation mechanism, the mounting plate and the moving block are detachably connected by connecting rods, connecting screws, and mounting bolts. Loosening the mounting bolts allows the mounting plate and the moving block to be separated. The laser monitor is connected to the rotating mechanism of the connecting ring via a connecting column. The laser monitor can be separated from the connecting ring without additional complex disassembly steps. At the same time, the mounting slot is fixed by fastening bolts, making disassembly convenient and facilitating regular maintenance and repair of the device. The device can also be flexibly moved to different monitoring locations according to monitoring needs, improving the reusability of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure on the back of the present invention; Figure 3 This is a schematic diagram of the structure between the mounting plate and the lead screw of the present invention; Figure 4 This is a schematic diagram of the outer side of the rotating mechanism of the present invention; Figure 5 This is a cross-sectional view of the side structure of the mounting plate of the present invention; Figure 6 This is a schematic diagram of the outer side of the rotating disc of the present invention; Figure 7 This is a cross-sectional view of the side structure of the connecting ring of the present invention; Figure 8 For the present invention Figure 5 Enlarged view of the structure at point A in the middle; Figure 9 For the present invention Figure 7 Enlarged view of the structure at point B; Figure 10 For the present invention Figure 4 Enlarged view of the structure at point C; Figure 11 This is a conceptual diagram of the entire invention.

[0018] In the diagram: 1. Mounting slot; 2. Fastening bolt; 3. Connecting ring; 4. Laser monitor; 5. Rotating mechanism; 51. Connecting column; 52. Support rod; 53. Rotating ball; 54. Rotating groove; 55. Rotating disc; 56. Moving rod; 57. Moving groove; 58. Return spring; 59. Threaded tube; 510. Push screw; 511. Transmission rod; 512. Rotating tube; 6. Moving installation mechanism; 61. Micro motor; 62. Lead screw; 63. Moving block; 631. Snap-fit ​​column; 632. Mounting hole; 64. Mounting plate; 641. Through hole; 642. Connecting rod; 643. Connecting screw; 644. Mounting bolt; 645. Limit cover; 65. Slide groove. Detailed Implementation

[0019] 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.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] Please see Figures 1-11 The present invention provides a technical solution: A laser monitoring device for displacement of a building steel structure includes a mounting slot 1, fastening bolts 2, a connecting ring 3 and a laser monitor 4. A rotating mechanism 5 is provided between the connecting ring 3 and the laser monitor 4, and a movable installation mechanism 6 is provided inside the mounting slot 1. The rotating mechanism 5 includes a connecting column 51, a support rod 52 fixedly connected to the bottom of the connecting column 51, a rotating ball 53 fixedly connected to the bottom of the support rod 52, a rotating groove 54 opened in the inner bottom wall of the connecting ring 3, a rotating disk 55 fixedly connected to the outer side of the connecting ring 3, a moving rod 56 fixedly connected to the tail end of the connecting column 51, a moving groove 57 opened inside the rotating disk 55, and a return spring 58 fixedly connected to the outer side of the moving rod 56. The mobile installation mechanism 6 includes a micro motor 61, the output end of which is fixedly connected to a lead screw 62, the outer side of which is threadedly connected to a moving block 63, the top of which is fixedly connected to an installation plate 64, and the top of the installation slot 1 is provided with a sliding groove 65.

[0022] It should be noted that: a threaded tube 59 is provided on the outer side of the rotating disc 55, and a push screw 510 is connected to the inside of the threaded tube 59. A transmission rod 511 is fixedly connected to the outer side of the push screw 510. A rotating tube 512 is fixedly connected to the outer side of the moving rod 56. Fastening bolts 2 are evenly distributed in the side wall of the mounting slot 1. The laser monitor 4 is located outside the connecting ring 3, and the connecting ring 3 is located above the mounting slot 1. The connecting column 51 is fixedly connected to the outer side of the laser monitor 4.

[0023] Furthermore: the end of the return spring 58 away from the moving rod 56 is fixedly connected to the inner wall of the moving groove 57, the lead screw 62 is rotatably connected to the inside of the slide groove 65, the micro motor 61 is fixedly connected to the outside of the mounting slot 1, and the moving block 63 is symmetrically and slidably connected to the inside of the slide groove 65.

[0024] Specifically: In the installation and fixing process, the core of the device achieves stable assembly through the cooperation of the mounting slot 1 and the fastening bolts 2. The mounting slot 1 serves as the mounting carrier of the device. By fitting the shape of the building steel structure through the interlocking structure, it enables the device to be quickly positioned with the monitoring point and provides support for the subsequent assembly of various components. The fastening bolts 2, which are evenly distributed on the side wall of the mounting slot 1, apply clamping force through the tightening operation to firmly fix the mounting slot 1 to the surface of the steel structure, preventing the device from loosening or shifting due to vibration of the steel structure or external forces during the monitoring process.

[0025] Simultaneously: the snap-fit ​​post 631 on the top of the movable block 63 is movably inserted into the through hole 641 of the mounting plate 64, and the connecting rod 642 passes through the mounting hole 632 of the snap-fit ​​post 631. The snap-fit ​​post 631 enables the movable block 63 and the mounting plate 64 to be quickly docked and positioned. The through hole 641 is used to adapt to the installation of the snap-fit ​​post 631. The mounting hole 632 provides an insertion channel for the connecting rod 642. The connecting rod 642 passes through the snap-fit ​​post 631 and the mounting plate 64 to achieve a detachable connection between the two. The limit cover 645 is used to limit the displacement of the connecting rod 642 to prevent it from falling out of the through hole 641 and the mounting hole 632. The connecting screw 643 cooperates with the mounting bolt 644. By tightening the mounting bolt 644, a fastening force is applied to firmly fix the mounting plate 64 and the movable block 63. Thus, the laser monitor 4 is fully assembled with the connecting post 51, the connecting ring 3 and the mounting slot 1, ensuring the structural stability after installation.

[0026] As a further implementation of this solution, the mounting plate 64 has an insertion hole 641 inside, and a connecting rod 642 is installed inside the insertion hole 641. One end of the connecting rod 642 is fixedly connected to a connecting screw 643, and the outer side of the connecting screw 643 is threaded with a mounting bolt 644. The end of the connecting rod 642 away from the connecting screw 643 is fixedly connected to a limit cover 645. The top of the moving block 63 is fixedly connected to a snap-fit ​​post 631, and the snap-fit ​​post 631 has an installation hole 632 inside.

[0027] It should be noted that: the snap-fit ​​post 631 is movably connected inside the through hole 641, the connecting rod 642 passes through the inside of the mounting hole 632, the limit cover 645 is located on the outside of the mounting plate 64, the connecting screw 643 is located on the outside of the mounting plate 64, the mounting bolt 644 is tightly attached to the outside of the through hole 641, the pushing screw 510 and the transmission rod 511 are movably connected to the outside of the rotating disc 55, and the end of the transmission rod 511 away from the pushing screw 510 is rotatably snapped into the inside of the rotating tube 512.

[0028] Furthermore: the support rod 52 is used to fix and support the rotating ball 53, ensuring that the rotating ball 53 is firmly connected to the connecting column 51. The rotating ball 53 cooperates with the rotating groove 54 on the inner bottom wall of the connecting ring 3. Its function is to drive the connecting column 51 and the laser monitor 4 to achieve multi-directional angle adjustment by allowing the rotating ball 53 to rotate freely in the rotating groove 54. The rotating disk 55 provides an installation carrier for the moving groove 57 and the threaded tube 59. The moving groove 57 is used to adapt to the sliding of the moving rod 56. The function of the moving rod 56 is to cooperate with the transmission rod 511 to achieve angle locking.

[0029] Specifically: The function of the return spring 58 is to provide elastic return force during angle adjustment, facilitating fine-tuning of the angle. It also assists in fixing the moving rod 56 after the angle is locked. The threaded tube 59 is used to adapt to the threaded connection of the push screw 510. The push screw 510 moves axially by rotation, thereby driving the transmission rod 511. The function of the transmission rod 511 is to transmit the thrust of the push screw 510 to the moving rod 56. The rotating tube 512 is used to realize the rotational connection between the transmission rod 511 and the moving rod 56, avoiding jamming during transmission. Finally, through the cooperation of the above components, the monitoring angle of the laser monitor 4 is locked to prevent angle deviation.

[0030] Meanwhile, the micro motor 61 serves as a power source, its function is to output torque to drive the lead screw 62 to rotate. The lead screw 62 is threadedly connected to the moving block 63, its function is to convert the rotational motion of the micro motor 61 into the lateral linear motion of the moving block 63. The slide groove 65 is used to limit the movement trajectory of the moving block 63, prevent the moving block 63 from deviating, and ensure that it slides in a fixed direction. The function of the moving block 63 is to support the mounting plate 64 and the laser monitor 4, and drive them to move synchronously.

[0031] Workflow: First, install and fix the device by engaging the mounting slot 1 at the designated monitoring point on the steel structure. Tighten the fastening bolts 2, which are evenly distributed on the side wall of the mounting slot 1, to ensure that the mounting slot 1 fits tightly against the steel structure to provide a stable foundation. Then, insert the snap-fit ​​post 631 on the top of the moving block 63 into the corresponding through hole 641 of the mounting plate 64. Pass the connecting rod 642 through the mounting hole 632 of the snap-fit ​​post 631, so that the limiting cover 645 at one end of the connecting rod 642 fits against one side of the mounting plate 64, and the connecting screw 643 at the other end extends out of the other side of the mounting plate 64. Tighten the mounting bolts 644 on the outside of the connecting screw 643 to firmly connect the mounting plate 64 and the moving block 63. Then, the laser monitor 4 is assembled with the mounting slot 1 through the connecting post 51 and the connecting ring 3. Next, angle adjustment and position calibration are performed. Angle adjustment is achieved through the rotation mechanism 5. The bottom of the connecting column 51 fixed on the outside of the laser monitor 4 is connected to a rotating ball 53 via a support rod 52. The rotating ball 53 is rotated and engaged in the rotating groove 54 on the inner bottom wall of the connecting ring 3, which can achieve free rotation in multiple directions, thereby driving the laser monitor 4 to adjust the monitoring angle. After the angle is appropriate, the push screw 510 inside the threaded tube 59 on the outside of the rotating disk 55 is rotated. The push screw 510 drives the transmission rod 511 to move. The end of the transmission rod 511 away from the push screw 510 is rotated and engaged in the rotating tube 512 on the outside of the moving rod 56, thereby pushing the moving rod 56 to slide along the moving groove 57 inside the rotating disk 55. With the elastic reset action of the reset spring 58, the monitoring angle of the laser monitor 4 is locked. Position calibration is accomplished by moving the mounting mechanism 6. The micro motor 61, which is fixed on the outside of the mounting slot 1, is activated. Its output drives the lead screw 62 to rotate in the slide groove 65. Since the moving block 63 is threadedly connected to the lead screw 62 and symmetrically slidably connected in the slide groove 65, the rotation of the lead screw 62 will drive the moving block 63, the top mounting plate 64, and the laser monitor 4 to slide laterally, so as to achieve precise fine-tuning of the monitoring position to align with the monitoring point. Finally, the displacement monitoring stage begins. After the device is installed, adjusted, and calibrated, the laser monitor 4 starts and continuously emits laser light towards the monitoring points on the steel structure. The laser light is received after being reflected from the surface of the steel structure. When the steel structure undergoes a slight displacement, the laser reflection path will change accordingly. The laser monitor 4 captures parameters such as the path offset and propagation time difference of the reflected laser light and converts them into identifiable displacement data to achieve real-time monitoring. If the monitoring points need to be adjusted during this process, they can be done without disassembling the device through the rotating mechanism 5 and the moving installation mechanism 6. If maintenance, repair, or relocation of the device is required, the mounting plate 64 and the moving block 63 can be separated by loosening the mounting bolts 644, and the mounting slot 1 can be removed by loosening the fastening bolts 2, ensuring that the monitoring work can be carried out efficiently and continuously.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser monitoring device for displacement of a building steel structure, comprising a mounting slot (1), fastening bolts (2), a connecting ring (3), and a laser monitor (4), characterized in that: A rotating mechanism (5) is provided between the connecting ring (3) and the laser monitor (4), and a movable installation mechanism (6) is provided inside the mounting slot (1). The rotating mechanism (5) includes a connecting column (51), a support rod (52) is fixedly connected to the bottom of the connecting column (51), a rotating ball (53) is fixedly connected to the bottom of the support rod (52), a rotating groove (54) is provided in the inner bottom wall of the connecting ring (3), a rotating disk (55) is fixedly connected to the outer side of the connecting ring (3), a moving rod (56) is fixedly connected to the tail end of the connecting column (51), a moving groove (57) is provided inside the rotating disk (55), and a return spring (58) is fixedly connected to the outer side of the moving rod (56). The mobile installation mechanism (6) includes a micro motor (61), the output end of which is fixedly connected to a lead screw (62), the outer side of which is threadedly connected to a moving block (63), the top of which is fixedly connected to an installation plate (64), and the top of the installation slot (1) is provided with a sliding groove (65).

2. The laser displacement monitoring device for building steel structures according to claim 1, characterized in that, The mounting plate (64) has an insertion hole (641) inside, and a connecting rod (642) is provided inside the insertion hole (641). One end of the connecting rod (642) is fixedly connected to a connecting screw (643). The outer side of the connecting screw (643) is threaded with a mounting bolt (644). The end of the connecting rod (642) away from the connecting screw (643) is fixedly connected to a limit cover (645). The top of the moving block (63) is fixedly connected to a snap-fit ​​post (631), and the snap-fit ​​post (631) has an installation hole (632) inside.

3. The laser displacement monitoring device for building steel structures according to claim 1, characterized in that: The outer side of the rotating disc (55) is provided with a threaded tube (59), and the inner thread of the threaded tube (59) is connected to a push screw (510). The outer side of the push screw (510) is fixedly connected to a transmission rod (511), and the outer side of the moving rod (56) is fixedly connected to a rotating tube (512).

4. The laser displacement monitoring device for building steel structures according to claim 1, characterized in that: The fastening bolts (2) are evenly distributed in the side wall of the mounting slot (1), the laser monitor (4) is located outside the connecting ring (3), and the connecting ring (3) is set above the mounting slot (1), and the connecting column (51) is fixedly connected to the outside of the laser monitor (4).

5. The laser displacement monitoring device for building steel structures according to claim 1, characterized in that: The support rod (52) and the rotating ball (53) are evenly distributed on the outside of the connecting column (51), and the rotating ball (53) is rotatably engaged in the inside of the rotating groove (54). The end of the moving rod (56) away from the connecting column (51) is slidably connected in the inside of the moving groove (57).

6. The laser displacement monitoring device for building steel structures according to claim 1, characterized in that: The end of the reset spring (58) away from the moving rod (56) is fixedly connected to the inner wall of the moving groove (57), the lead screw (62) is rotatably connected to the inside of the slide groove (65), the micro motor (61) is fixedly connected to the outside of the mounting slot (1), and the moving block (63) is symmetrically and slidably connected to the inside of the slide groove (65).

7. The laser displacement monitoring device for building steel structures according to claim 2, characterized in that: The snap-fit ​​post (631) is movably connected inside the insertion hole (641), the connecting rod (642) passes through the inside of the mounting hole (632), and the limiting cover (645) is located outside the mounting plate (64).

8. The laser displacement monitoring device for building steel structures according to claim 2, characterized in that: The connecting screw (643) is located on the outside of the mounting plate (64), and the mounting bolt (644) is close to the outside of the through hole (641).

9. A laser monitoring device for displacement of a building steel structure according to claim 3, characterized in that: The push screw (510) and the transmission rod (511) are movably connected to the outside of the rotating disk (55), and the end of the transmission rod (511) away from the push screw (510) is rotatably engaged inside the rotating tube (512).

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