Laser scanning-based high pier verticality detection device and method

Abstract

The application provides a high pier verticality detection device and method based on laser scanning, and belongs to the technical field of high pier verticality detection. The device comprises a meandering inner frame, a plurality of groups of rollers are uniformly arranged around the meandering inner frame, the meandering inner frame can be synchronously expanded or reduced in size in all directions, a meandering outer frame is arranged on the outside of the meandering inner frame, a plurality of positioning members are uniformly arranged between the meandering inner frame and the meandering outer frame, so that the distance between the meandering outer frame and the meandering inner frame remains unchanged when the meandering outer frame moves up and down with the meandering inner frame, a laser emitter is arranged at the bottom corners of the meandering outer frame, a meandering bottom frame is arranged horizontally on the ground, a laser receiving plate is arranged at the four corners of the meandering bottom frame, the center of a plurality of annular scale lines is arranged opposite to the laser emitter above, and a driving member is used for driving the plurality of groups of rollers to rotate synchronously and lock at any position after rotation. The application can detect the verticality of the high pier in a convenient, safe and high-precision manner.

Description

Technical Field

[0001] The present invention relates to the technical field of high bridge pier verticality detection, and in particular to a high bridge pier verticality detection device and method based on laser scanning. Background Art

[0002] High bridge piers are an important part of bridge structures, and their verticality is directly related to the overall safety and stability of the bridge. In existing related technologies, the verticality of high bridge piers is usually detected by hanging wire method and laser measurement method.

[0003] The hanging line method utilizes a gravity plumb line for inspection. While simple equipment and easy operation are essential, it has significant limitations. Due to the height of high bridge piers, the hanging line method is susceptible to wind, causing the plumb line to swing and resulting in measurement errors. Furthermore, this method is difficult to apply to extremely high piers or complex construction scenarios, resulting in low measurement efficiency and limited accuracy.

[0004] Laser measurement is one of the most advanced detection methods currently available. It uses laser transmitters and receivers to measure the spatial position of bridge piers. However, this method has several drawbacks in practical application. Due to the limitations of high pier heights and construction environments, laser measurement requires repeated adjustments of equipment and detection angles at different locations, increasing measurement complexity. Furthermore, the measurement process requires personnel to install or operate the laser transmitter and receiver at high altitude, which is not only inefficient but also poses significant safety risks.

[0005] Furthermore, the applicant has discovered through long-term practice that the diameters of some high bridge piers vary along their height. In such cases, neither the hanging wire method nor the laser measurement method can adapt to the varying pier diameters. The hanging wire method struggles to accurately align with the pier's outer wall, resulting in offset vertical reference lines. The laser measurement method, on the other hand, requires frequent adjustments to the measuring device's working distance or position, further increasing detection complexity and the risk of error. Therefore, an improved detection technology is urgently needed to address these existing issues. Summary of the Invention

[0006] The object of the present invention is to provide a device and method for detecting the verticality of high bridge piers based on laser scanning, which can detect the verticality of high bridge piers in a convenient, safe and high-precision manner.

[0007] In a first aspect, the embodiments of the present invention are implemented through the following technical solutions:

[0008] A high bridge pier verticality detection device based on laser scanning, comprising:

[0009] A circular inner frame, wherein multiple groups of rollers are evenly arranged along the four sides of the circular inner frame, and the multiple groups of rollers are arranged directly facing the outer wall of the high bridge pier. The circular inner frame can be synchronously expanded or contracted in all directions to adjust the size, so that the multiple groups of rollers can stably abut against the outer wall of the high bridge pier;

[0010] A circular outer frame, which is spaced apart from the outer side of the circular inner frame and can synchronously follow the circular inner frame to move up and down along the outer wall of the high bridge pier;

[0011] Positioning members, wherein the positioning members are provided in multiple groups, and the multiple groups of positioning members are evenly arranged between the circular inner frame and the circular outer frame, so that when the circular outer frame moves up and down following the circular inner frame, the distance between the circular outer frame and the circular inner frame remains unchanged;

[0012] Laser emitters, the laser emitters are arranged at the four bottom corners of the circular outer frame;

[0013] A circular bottom frame, the circular bottom frame is used to be horizontally arranged on the ground and is located directly below the circular outer frame;

[0014] A laser receiving plate, the laser receiving plate being arranged at the four corners of the circular bottom frame, the top of the laser receiving plate being provided with a plurality of annular scale lines spreading along the center, the centers of the plurality of annular scale lines being arranged directly opposite the laser emitter above;

[0015] A driving member is used to drive multiple groups of rollers to rotate synchronously and lock them to any position after rotation.

[0016] Furthermore, the four corners of the circular inner frame include elastic deformation plates, and the ends of the elastic deformation plates at the four corners are fixedly connected by connecting rods. The four connecting rods and the elastic deformation plates at the four corners together form a circular shape. The elastic deformation plate is V-shaped as a whole, and the tip of the V-shaped elastic deformation plate has an arc-shaped deformation portion.

[0017] Furthermore, both ends of the V-shaped elastic deformation plate have weak deformation portions.

[0018] Furthermore, each group of the positioning parts includes a sliding rod and a spring, one end of the sliding rod is detachably fixedly connected to the connecting rod, and the other end slides through the circular outer frame, and the spring is sleeved on the sliding rod, one end of the spring is fixedly connected to the connecting rod, and the other end is fixedly connected to the circular outer frame.

[0019] Furthermore, guide cylinders are fixedly provided at the four corners of the circular outer frame, the laser emitter is arranged in the guide cylinder, and a limiting cylinder is fixedly provided at the center position of the laser receiving plate. When the circular outer frame is placed on the circular bottom frame, the guide cylinder is slidably inserted into the limiting cylinder.

[0020] Furthermore, a fixing ring is coaxially fixed in the guide cylinder, a first ring body is rotatably arranged in the fixing ring, a second ring body is rotatably arranged in the first ring body, the first ring body and the rotation axis of the fixing ring are horizontally arranged, the rotation axis between the second ring body and the first ring body is horizontally arranged, the rotation axis of the first ring body and the fixing ring are perpendicular to each other with respect to the rotation axis between the second ring body and the first ring body and are located in the same plane, and the laser emitter is coaxially fixed at the center of the second ring body.

[0021] Furthermore, the driving member includes a motor, which is connected to the roller and is used to drive the roller to rotate, wherein the motor is a self-locking motor;

[0022] And / or, a level bubble is provided on the circular bottom frame.

[0023] Furthermore, each group of rollers is provided with at least two in the vertical direction, and each group of rollers is connected by a fixing frame, and the fixing frame includes a mounting tube and a bracket, and the mounting tube is slidably sleeved on the connecting rod, and the rotation axis of the roller is parallel to the connecting rod. The bracket is fixedly welded on both sides of the mounting tube, and the roller is rotatably connected to the bracket, and the mounting tube is threadedly connected with a fixing bolt that abuts against the connecting rod.

[0024] Furthermore, the circular inner frame, circular outer frame and circular bottom frame are all made of multiple sections of rods, and the rods on the circular inner frame, circular outer frame and circular bottom frame are connected to each other through plug-ins and slots and fixed by screw thread insertion.

[0025] In a second aspect, the embodiments of the present invention are implemented through the following technical solutions:

[0026] A method for using a laser scanning high bridge pier verticality detection device, applicable to the laser scanning high bridge pier verticality detection device in the above solution, comprises the following steps:

[0027] S1: Place the circular bottom frame under the high bridge pier and install it horizontally on the ground;

[0028] S2: Place the circular inner and outer frames on the outer periphery of the high bridge pier, and ensure that the circular outer frame is directly above the circular bottom frame. During this process, the laser transmitters at the four corners of the circular outer frame must be aligned with the center of the laser receiving plate on the circular bottom frame.

[0029] S3: Start the driving component to drive the circular inner frame and the circular outer frame to move up along the high bridge pier to multiple preset detection points, and pause at each detection point to observe and record the positions of the laser spots on the laser receiving plates at the four corners of the circular bottom frame;

[0030] S4: Check the recorded data of multiple detection points to determine whether each laser spot deviates from the center of the receiving plate, so as to determine whether the high bridge pier is vertical.

[0031] The technical solutions of the embodiments of the present invention have at least the following advantages and beneficial effects:

[0032] 1. The present invention utilizes a drive element to drive the circular inner and outer frames upward from the base of a high bridge pier, offering significant advantages. Specifically, the circular inner frame can adjust its diameter according to the height variation of the high bridge pier during upward movement, maintaining stable upward movement. Because the diameters of some high bridge piers often vary at different heights, the variable diameter of the circular inner frame adapts to this irregularity, ensuring a good fit across regions of varying diameters and effectively improving measurement adaptability and accuracy.

[0033] At the same time, the circular inner frame will not affect the diameter of the circular outer frame during the upward movement. The circular outer frame always maintains a stable size, which can achieve stable center positioning of the high bridge pier during the upward movement. This stability of the circular outer frame ensures that during the detection process, the laser emitters at the four corners can accurately illuminate the laser receiving plate on the circular bottom frame and perform fixed-point detection of the high bridge pier, further ensuring the accuracy of the detection. In specific operations, the infrared light spot emitted by the laser emitter is illuminated onto the laser receiving plate, and the offset of the high bridge pier is determined by the position of the light spot. If the light spots at multiple fixed positions deviate from the center of the laser receiving plate, it can be clearly pointed out that the high bridge pier is offset, thereby determining its verticality.

[0034] Furthermore, the laser transmitter is located at the bottom and directly aligned with the center of the laser receiver plate. As the inner and outer circular frames move upward, the laser transmitter's initial position remains aligned with the center of the receiver plate, eliminating the difficulty of aligning the long-distance laser transmitter and receiver required by traditional methods. This design simplifies the alignment process, reduces operational difficulty, and significantly improves operational convenience. It also eliminates the need for manual climbing onto high bridge piers for high-altitude operations, thereby enhancing safety. This approach not only improves overall measurement accuracy but also increases efficiency, ensuring the reliability and high precision of high bridge pier verticality testing.

[0035] 2. The present invention adopts a design similar to a tumbler structure by arranging a fixed ring, a first ring body, and a second ring body within the guide cylinder, and fixing the laser emitter on the second ring body, so that the laser emitter can always keep the laser emission facing directly downward during the ascent process. The core advantage of this design is that as the circular inner frame and the circular outer frame rise along the high bridge pier, the laser emitter can automatically adjust to face directly downward when affected by gravity, avoiding measurement errors caused by tilt. If the four detection points of the circular outer frame are not completely in the same horizontal plane during the ascent process, the laser emitter can self-level to ensure the accuracy of the measurement data.

[0036] Furthermore, by monitoring the changes in the position of the laser irradiation point, it's possible to determine the tilt of a high bridge pier. If a high bridge pier has a certain degree of tilt, its slope can be determined through simple calculations. Specifically, the laser light can be considered the right-angled side of a right triangle, while the height of the pier's pile (or the height of its rise) is the hypotenuse. By comparing the two, the pier's tilt angle can be quickly calculated, and thus its verticality can be determined. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 This is a schematic diagram of the overall structure of the high bridge pier verticality detection device based on laser scanning provided by the present invention;

[0039] Figure 2 For the present invention Figure 1 Enlarged view of part A;

[0040] Figure 3 This is a schematic diagram showing the structure of the fixing frame, the circular outer frame and the positioning member of the present invention;

[0041] Figure 4 For the present invention Figure 3 Enlarged view of part B;

[0042] Figure 5 This is a schematic diagram showing the structure of the laser emitter inside the guide cylinder of the present invention;

[0043] Figure 6 The present invention is intended to show an exploded view of a laser transmitter mounted on a fixing ring;

[0044] Figure 7This invention is intended to show a specific structural diagram of a circular inner frame, a circular outer frame and a circular bottom frame spliced ​​by rods;

[0045] Icon: 1-reciprocating inner frame, 12-elastic deformation plate, 121-arc-shaped deformation part, 122-weak deformation part, 13-connecting rod, 2-roller, 21-fixing frame, 211-mounting cylinder, 2111-fixing bolt, 212-bracket, 3-reciprocating outer frame, 31-laser emitter, 32-guide cylinder, 4-positioning part, 41-sliding rod, 411-limiting part, 412-nut, 413-anti-slip part, 42-spring, 5-reciprocating bottom frame, 51-laser receiving plate, 511-annular scale line, 512-limiting cylinder, 6-driving part, 61-motor, 7-fixing ring, 71-first ring body, 72-second ring body, 8-level bubble, 81-adjusting stud, 82-level plate, 9-rod body, 91-insert block, 92-slot, 93-screw, 100-ground. DETAILED DESCRIPTION

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0047] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0048] Example

[0049] The following is further described in conjunction with specific embodiments. Figure 1-Figure 7 As shown, the present invention is a high bridge pier verticality detection device based on laser scanning, which includes multiple key components to ensure high precision and stability.

[0050] The circular inner frame 1 is the core of the entire detection device. Multiple sets of rollers 2 are evenly distributed along its perimeter, facing the outer wall of the high bridge pier. The circular inner frame 1 can be simultaneously expanded or contracted in all directions, adjusting its size to ensure that the multiple sets of rollers 2 are in stable contact with the outer wall of the high bridge pier, ensuring that the circular inner frame 1 always conforms to the outer wall of the pier. This design allows the device to adapt to bridge piers of different sizes and shapes, ensuring stable and efficient measurement.

[0051] The circular outer frame 3 is located outside the circular inner frame 1 and can move up and down along the outer wall of the high bridge pier in sync with the circular inner frame 1. The main function of the circular outer frame 3 is to provide a stable support platform for the laser transmitter 31 and ensure that the laser transmitter 31 always maintains the correct position during the measurement process.

[0052] The positioning members 4 are small components installed between the circular inner frame 1 and the circular outer frame 3, and are evenly spaced at corresponding positions between the circular inner frame 1 and the circular outer frame 3. The function of the positioning members 4 is to ensure that the spacing between the circular outer frame 3 and the circular inner frame 1 remains unchanged during the upward and downward movement, avoiding measurement errors caused by spacing changes.

[0053] Laser emitters 31 are located at the four corners of the circular outer frame 3 and emit laser beams upward to the laser receiving plate 51 below. This arrangement ensures that the laser beams are evenly distributed across multiple receiving locations on the laser receiving plate 51, providing highly accurate measurement data for verticality testing of high piers.

[0054] The circular bottom frame 5 is designed to be horizontally mounted on the ground 100, directly below the circular outer frame 3. To adjust the horizontal position of the circular bottom frame 5, multiple adjustment studs 81 are evenly threaded around the perimeter of the circular bottom frame 5. The bottom ball joints of the adjustment studs 81 are equipped with leveling plates 82, which abut against the ground 100. The horizontal position of the circular bottom frame 5 can be adjusted by rotating the adjustment studs 81. A level bubble 8 is provided on the circular bottom frame 5 to ensure that the entire device is horizontal, thereby ensuring that the optical path between the laser emitter 31 and the laser receiving board 51 is always accurately positioned.

[0055] Laser receiving plates 51 are fixed to the four corners of the circular base frame 5. Each receiving plate is topped with multiple circular scale lines 511, which are spread out along the center. The center of these circular scale lines 511 is aligned with the laser emitter 31 above. The design of the laser receiving plates 51 ensures that they accurately receive the laser beam emitted by the laser emitter 31 and detect the verticality of the bridge pier by observing the changes in the light spot. If the light spot shifts at different detection points, it indicates that the high bridge pier is tilted.

[0056] The driver 6 is used to drive the multiple sets of rollers 2 to rotate synchronously and can lock them in any position after rotation. This driver 6, powered by a motor 61 or other power source, drives the rollers 2, allowing the circular inner and outer frames 1 and 3 to move up and down along the outer wall of the high bridge pier. The locking function of the driver 6 ensures that the circular inner and outer frames 1 and 3 remain stable during the inspection process, preventing any unnecessary displacement or error.

[0057] Reference Figure 1 and Figure 3As shown, elastically deformable plates 12 are installed at the four corners of the zigzag inner frame 1. The ends of the four elastically deformable plates 12 are fixedly connected by connecting rods 13. Together, the four connecting rods 13 and the four elastically deformable plates 12 form a zigzag structure. The overall shape of the elastically deformable plates 12 is V-shaped, and this structural design effectively improves the stability and adaptability of the zigzag inner frame 1 on the outer wall of a high bridge pier.

[0058] Specifically, the tip of the V-shaped elastically deformable plate 12 is provided with an arc-shaped deforming portion 121. This design ensures that the deforming portion does not deform excessively during the elastic deformation process, thereby preventing any impact on structural stability. The V-shaped structure provides the elastically deformable plate 12 with strong elasticity while maintaining flexibility, allowing it to better adapt to the curved surface of the outer wall of a high bridge pier, ensuring that the circular inner frame 1 maintains a stable and secure fit against the outer wall of the pier during its ascent.

[0059] Furthermore, the V-shaped elastically deformable plate 12 has weak deformation portions 122 at each end. These weak deformation portions 122 are key components in the design of the elastically deformable plate 12. They deform preferentially when the four connecting rods 13 deform, avoiding instability caused by the simultaneous deformation of the four connecting rods 13. The preferential deformation of the weak deformation portions 122 helps control the overall deformation process, thereby improving the controllability and stability of the deformation. Through this design, the elastically deformable plate 12 can evenly distribute stress during the deformation of the four connecting rods 13, ensuring a more stable fit between the circular inner frame 1 and the outer wall of the high bridge pier.

[0060] The design of the elastically deformable plate 12 also ensures that the roller 2 of the circular inner frame 1 maintains stable contact with the outer wall of the high bridge pier. As the circular inner frame 1 moves up and down along the outer wall of the high bridge pier, the elastically deformable plate 12 provides sufficient elastic force to ensure that the roller 2 applies pressure evenly, avoiding measurement errors caused by uneven contact or slippage. This design improves the equipment's adaptability in complex construction environments and ensures the accuracy and stability of high bridge pier verticality testing.

[0061] Reference Figure 3 and Figure 4As shown, each set of positioning members 4 includes a sliding rod 41 and a spring 42. One end of the sliding rod 41 is detachably fixedly connected to the connecting rod 13. Specifically, a limiting portion 411 is integrally provided on the side of the sliding rod 41 close to the connecting rod 13. The limiting portion 411 abuts against the connecting rod 13. At the same time, the sliding rod 41 passes through the connecting rod 13 and one end of the connecting rod 13 is provided with a thread. The nut 412 is threadedly connected to the threaded portion of the connecting rod 13 to fix the connecting rod 13. The end of the sliding rod 41 away from the connecting rod 13 is also integrally welded with an anti-detachment portion 413 to prevent the sliding rod 41 from detaching from the circular outer frame 3. The other end slides out of the circular outer frame 3, and the spring 42 is sleeved on the sliding rod 41. One end of the spring 42 is fixedly connected to the connecting rod 13, and the other end is fixedly connected to the circular outer frame 3. In another embodiment, when the spring 42 is specifically installed, the two ends of the spring 42 can respectively abut against the circular outer frame 3 and the connecting rod 13 to facilitate the disassembly of the spring 42.

[0062] Reference Figure 2 and Figure 5 As shown, guide cylinders 32 are fixedly provided at the four corners of the circular outer frame 3, the laser emitter 31 is arranged in the guide cylinder 32, and a limiting cylinder 512 is fixedly provided at the center position of the laser receiving plate 51. When the circular outer frame 3 is placed on the circular bottom frame 5, the guide cylinder 32 is slidably inserted in the limiting cylinder 512. The guide cylinder 32 and the limiting cylinder 512 can play a positioning role, which is convenient for positioning when the circular outer frame 3 is placed on the circular bottom frame 5. The guide cylinder 32 and the limiting cylinder 512 are positioned, and the laser emitter 31 can be quickly aligned with the center position of the laser receiving plate 51. The cooperation between the guide cylinder 32 and the limiting cylinder 512 can not only realize the precise positioning of the circular outer frame 3, but also prevent the equipment from being offset due to improper placement or uneven force, thereby ensuring that the relative position between the laser emitter 31 and the laser receiving plate 51 always remains stable.

[0063] Reference Figure 5 and Figure 6 As shown, a fixing ring 7 is coaxially fixed, bonded or welded inside the guide cylinder 32, a first ring body 71 is rotatably arranged inside the fixing ring 7, a second ring body 72 is rotatably arranged inside the first ring body 71, the first ring body 71 and the rotation axis of the fixing ring 7 are horizontally arranged, the rotation axis between the second ring body 72 and the first ring body 71 is horizontally arranged, the rotation axis of the first ring body 71 and the fixing ring 7 are perpendicular to each other and located in the same plane relative to the rotation axis between the second ring body 72 and the first ring body 71, and the laser emitter 31 is coaxially fixedly installed at the center of the second ring body 72, so that the laser emitter 31 is shaped like a tumbler structure, ensuring that the infrared laser emitted by the laser emitter 31 can always face directly downward.

[0064] Reference Figure 1 and Figure 3As shown, the driving member 6 includes a motor 61, which is connected to the roller 2 and is used to drive the roller 2 to rotate. The selection of the motor 61 is very critical. In this embodiment, the motor 61 is a self-locking motor 61. The self-locking motor 61 has a unique operating principle and can automatically lock its rotation position after stopping. This prevents the circular inner frame 1 or the circular outer frame 3 from accidentally shifting or rotating in the opposite direction due to external forces during the high bridge pier inspection process.

[0065] After stopping, the self-locking motor 61 can automatically lock its rotational position. This feature allows the circular inner frame 1 and the circular outer frame 3 to remain stable at multiple inspection points during the inspection of high bridge piers without the need for additional braking devices or external controls, thereby reducing the complexity of mechanical components and potential failure points. It should be emphasized that each motor 61 needs to operate synchronously to ensure the stability of the circular inner frame 1 and the circular outer frame 3 during movement. At the same time, the self-locking motor 61 can be a motor that can transmit and record the number of rotations. The external receiving end can receive and display the data transmitted by the motor, thereby displaying the number of rotations and the rise distance of the roller 2, so that the approximate angle value of the high bridge pier can be obtained based on the rise distance and the offset distance of the light spot at the center of the laser receiving plate 51.

[0066] Reference Figure 1 and Figure 3 As shown, each roller group 2 is vertically arranged with at least two rollers 2 to ensure stable rotation of the rollers 2 and avoid deviation or jamming during the ascent or descent of the circular inner frame 1 and the circular outer frame 3 along the high bridge pier. Specifically, in this embodiment, each roller group 2 is equipped with two rollers 2. Through reasonable layout and installation, the smooth and stable rotation of the rollers 2 is ensured.

[0067] To improve the stability of roller 2 and prevent slipping, the perimeter of roller 2 is provided with anti-slip textures. These anti-slip textures not only increase friction with the outer wall of the pier, preventing roller 2 from slipping during movement and ensuring smooth vertical movement of the circular inner and outer frames 1 and 3, but also effectively improve the safety of the equipment during high-altitude operation, avoiding measurement errors or equipment damage caused by roller 2 slipping.

[0068] Each set of rollers 2 is connected via a mounting bracket 21. The mounting bracket 21 comprises a mounting tube 211 and a bracket 212. The mounting tube 211 is slidably mounted on the connecting rod 13, with the axis of rotation of the rollers 2 parallel to the connecting rod 13. This design allows the rollers 2 to roll smoothly vertically. The brackets 212 are welded to both sides of the mounting tube 211. The brackets 212 firmly support the rollers 2, ensuring stable rotation and preventing tilting or uneven rotation of the rollers 2 during use. The rotational connection of each roller 2 is achieved by the bracket 212, ensuring unimpeded rotation of the rollers 2.

[0069] To install and secure each set of rollers 2, mounting cylinders 211 are threaded with fixing bolts 2111, which abut against connecting rods 13, ensuring a secure connection between mounting bracket 21 and rollers 2. This design prevents the rollers 2 from loosening or shifting during the entire testing process, thereby ensuring the stability of the circular inner and outer frames 1 and 3 and improving measurement accuracy.

[0070] Reference Figure 7 As shown, the circular inner frame 1, circular outer frame 3, and circular bottom frame 5 are all constructed from multiple rod segments 9. The rods 9 of each frame are connected to each other via a combination of inserts 91 and slots 92, ensuring structural stability and ease of assembly and disassembly. Specifically, each rod segment 9 is provided with a slot 92. The inserts 91 are square in shape and fit snugly into their corresponding slots 92, ensuring precise alignment between the rods 9. The coordination of the inserts 91 and slots 92 not only enables efficient connection of the rods 9, but also facilitates quick assembly and disassembly of the entire frame.

[0071] To further enhance the stability of the connection, insert 91 is threaded into slot 92 and secured with screws 93. This threaded connection ensures a secure joint, preventing loosening or structural instability due to external forces during use. The precise positioning of each slot 92 and insert 91 ensures frame stability and uniform force distribution, preventing structural deformation or tilting during high-altitude operations or inspections of high bridge piers.

[0072] This design makes the circular inner frame 1, circular outer frame 3, and circular bottom frame 5 convenient during assembly and transportation, allowing for quick size adjustments and reassembly based on actual needs. Furthermore, the square inserts 91 enhance the precision of fit between the rods 9, reducing measurement inaccuracies caused by assembly errors, thereby improving the stability and accuracy of verticality testing for high bridge piers.

[0073] In addition, the embodiments of the present invention are achieved through the following technical solutions:

[0074] A method for using a laser scanning high bridge pier verticality detection device, applicable to the laser scanning high bridge pier verticality detection device in the above solution, comprises the following steps:

[0075] S1: Place the circular bottom frame 5 under the high bridge pier and install it horizontally on the ground 100;

[0076] S2: Slide the circular inner frame 1 and the circular outer frame 3 onto the outer periphery of the high bridge pier, ensuring that the circular outer frame 3 is directly above the circular bottom frame 5. During this process, the laser emitters 31 at the four corners of the circular outer frame 3 must be aligned with the center of the laser receiving plate 51 on the circular bottom frame 5.

[0077] S3: Start the motor 61 to drive the circular inner frame 1 and the circular outer frame 3 to move up along the high bridge pier to multiple preset detection points, and pause at each detection point to observe and record the position of the laser spot on the laser receiving plate 51 at the four corners of the circular bottom frame 5;

[0078] S4: Check the recorded data of multiple detection points to determine whether each laser spot deviates from the center of the receiving plate, so as to determine whether the high bridge pier is vertical.

[0079] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A high bridge pier verticality detection device based on laser scanning, characterized by: include: A circular inner frame (1), wherein the circular inner frame (1) is evenly provided with multiple groups of rollers (2) along the four sides, and the multiple groups of rollers (2) are all arranged facing the outer wall of the high bridge pier. The circular inner frame (1) can be synchronously expanded or contracted toward the four sides to adjust the size, so that the multiple groups of rollers (2) can stably abut against the outer wall of the high bridge pier; A circular outer frame (3), the circular outer frame (3) being spaced apart and arranged outside the circular inner frame (1), and being capable of synchronously following the circular inner frame (1) to move up and down along the outer wall of the high bridge pier; Positioning members (4), wherein the positioning members (4) are provided in multiple groups, and the multiple groups of positioning members (4) are evenly arranged between the circular inner frame (1) and the circular outer frame (3), so that when the circular outer frame (3) moves up and down following the circular inner frame (1), the distance between the circular outer frame (3) and the circular inner frame (1) remains unchanged; Laser emitters (31), the laser emitters (31) being arranged at the four bottom corners of the circular outer frame (3); A circular bottom frame (5), the circular bottom frame (5) is used to be horizontally arranged on the ground (100) and is located directly below the circular outer frame (3); A laser receiving plate (51), the laser receiving plate (51) being arranged at the four corners of the circular bottom frame (5), the top of the laser receiving plate (51) being provided with a plurality of annular scale lines (511) spread out along the center, the centers of the plurality of annular scale lines (511) being arranged directly opposite the laser emitter (31) above; A driving member (6), the driving member (6) is used to drive the plurality of rollers (2) to rotate synchronously and lock them to any position after the rotation; The four corners of the circular inner frame (1) include elastic deformation plates (12), the ends of the elastic deformation plates (12) at the four corners are fixedly connected by connecting rods (13), and the four connecting rods (13) and the elastic deformation plates (12) at the four corners together form a circular shape. The elastic deformation plates (12) are V-shaped as a whole, and the tip of the V-shaped elastic deformation plates (12) has an arc-shaped deformation portion (121); Each group of positioning members (4) comprises a sliding rod (41) and a spring (42), one end of the sliding rod (41) is detachably fixedly connected to the connecting rod (13), and the other end is slidably passed through the circular outer frame (3), and the spring (42) is sleeved on the sliding rod (41), one end of the spring (42) is fixedly connected to the connecting rod (13), and the other end is fixedly connected to the circular outer frame (3).

2. The high bridge pier verticality detection device based on laser scanning according to claim 1 is characterized in that: Both ends of the V-shaped elastic deformation plate (12) have weak deformation portions (122).

3. The high bridge pier verticality detection device based on laser scanning according to claim 1 is characterized in that: Guide cylinders (32) are fixedly provided at the four corners of the circular outer frame (3), the laser emitter (31) is arranged in the guide cylinder (32), and a limiting cylinder (512) is fixedly provided at the center position of the laser receiving plate (51). When the circular outer frame (3) is placed on the circular bottom frame (5), the guide cylinder (32) is slidably inserted into the limiting cylinder (512).

4. The high bridge pier verticality detection device based on laser scanning according to claim 3 is characterized in that: A fixing ring (7) is coaxially fixedly arranged in the guide cylinder (32), a first ring body (71) is rotatably arranged in the fixing ring (7), a second ring body (72) is rotatably arranged in the first ring body (71), the first ring body (71) and the rotation axis of the fixing ring (7) are arranged horizontally, the rotation axis between the second ring body (72) and the first ring body (71) is arranged horizontally, the rotation axis of the first ring body (71) and the fixing ring (7) are perpendicular to each other and located in the same plane relative to the rotation axis between the second ring body (72) and the first ring body (71), and the laser emitter (31) is coaxially fixedly arranged at the center of the second ring body (72).

5. The high bridge pier verticality detection device based on laser scanning according to claim 1 is characterized in that: The driving member (6) includes a motor (61), the motor (61) is connected to the roller (2) and is used to drive the roller (2) to rotate, wherein the motor (61) is a self-locking motor; And / or, a level bubble (8) is provided on the circular bottom frame (5).

6. The high bridge pier verticality detection device based on laser scanning according to claim 1 is characterized in that: Each group of rollers (2) is provided with at least two rollers in the vertical direction. Each group of rollers (2) is connected via a fixing frame (21). The fixing frame (21) comprises a mounting cylinder (211) and a bracket (212). The mounting cylinder (211) is slidably sleeved on the connecting rod (13). The rotation axis of the roller (2) is parallel to the connecting rod (13). The bracket (212) is fixedly welded to both sides of the mounting cylinder (211). At the same time, the roller (2) is rotatably connected to the bracket (212). The mounting cylinder (211) is threadedly connected with a fixing bolt (2111) that abuts against the connecting rod (13).

7. The high bridge pier verticality detection device based on laser scanning according to claim 1 is characterized in that: The circular inner frame (1), the circular outer frame (3) and the circular bottom frame (5) are all formed by splicing together multiple sections of rod bodies (9). The rod bodies (9) on the circular inner frame (1), the circular outer frame (3) and the circular bottom frame (5) are connected to each other through insert blocks (91) and slots (92) and fixed by screws (93) through threaded insertion.

8. A method for using a laser scanning device for detecting verticality of a high bridge pier, applicable to the laser scanning device for detecting verticality of a high bridge pier according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: The circular bottom frame (5) is placed under the high bridge pier and installed horizontally on the ground (100); S2: The circular inner frame (1) and the circular outer frame (3) are placed on the outer periphery of the high bridge pier, and the circular outer frame (3) is ensured to be located directly above the circular bottom frame (5); During this process, the laser emitters (31) at the four corners of the circular outer frame (3) must be aligned with the center of the laser receiving plate (51) on the circular bottom frame (5); S3: Start the driving member (6), drive the circular inner frame (1) and the circular outer frame (3) to move along the high bridge pier to a plurality of preset detection points, and pause at each detection point to observe and record the position of the laser spot on the laser receiving plate (51) at the four corners of the circular bottom frame (5); S4: Check the recorded data of multiple detection points to determine whether each laser spot deviates from the center of the receiving plate, so as to determine whether the high bridge pier is vertical.

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