High pier perpendicularity detection device and method based on laser scanning

Abstract

The invention provides a high bridge pier perpendicularity detection device and method based on laser scanning, and belongs to the technical field of high bridge pier perpendicularity detection.The high bridge pier perpendicularity detection device comprises a concentric-square-shaped inner frame, the concentric-square-shaped inner frame is evenly provided with multiple sets of idler wheels along the periphery, and the concentric-square-shaped inner frame can be synchronously expanded or shrunk towards the periphery to adjust the size; the concentric-square-shaped outer frames are arranged on the outer side of the concentric-square-shaped inner frame at intervals; the multiple sets of positioning pieces are evenly arranged between the concentric-square-shaped inner frame and the concentric-square-shaped outer frame, so that when the concentric-square-shaped outer frame moves up and down along with the concentric-square-shaped inner frame, the distance between the concentric-square-shaped outer frame and the concentric-square-shaped inner frame is not changed. The laser transmitters are arranged at four corners of the bottom of the concentric-square-shaped outer frame; the concentric-square-shaped bottom frame is used for being horizontally arranged on the ground. The laser receiving plates are arranged at the four corners of the concentric-square-shaped bottom frame, and the centers of the multiple circles of annular scale marks are arranged right opposite to the laser emitters above; and the driving piece is used for driving the plurality of groups of rollers to synchronously rotate and lock to any position after rotation. According to the invention, the verticality of the high bridge pier can be detected 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 the bridge structure, and their verticality is directly related to the safety and stability of the bridge as a whole. In the existing related technologies, the verticality of high bridge piers is usually detected by hanging wire method and laser measurement method.

[0003] The hanging wire method uses a gravity plumb line for detection. Its equipment is simple and easy to operate, but it has obvious limitations. Due to the high height of high bridge piers, the hanging wire method is easily affected by wind, causing the plumb line to swing and cause measurement errors. In addition, this method is difficult to apply to super-high bridge piers or complex construction scenes, and the measurement efficiency is low and the accuracy is limited.

[0004] Laser measurement is one of the more advanced detection methods currently. It uses laser emitting and receiving devices to measure the spatial position of bridge piers. However, this method has many shortcomings in practical applications. Due to the limitations of high bridge pier height and construction environment, laser measurement requires repeated adjustment of equipment and detection angles at different positions, which increases the complexity of measurement. In addition, during the measurement process, personnel are required to install or operate laser emitting or receiving devices at high altitudes, which is not only inefficient, but also poses a major safety hazard.

[0005] In addition, the applicant has found in long-term practice that for some high bridge piers, their diameters along the height direction are not completely consistent. In this case, both the hanging wire method and the laser measurement method are difficult to adapt to the needs of the change in the diameter of the bridge pier. The hanging wire method is difficult to accurately fit the outer wall of the bridge pier, resulting in a vertical reference offset, and the laser measurement method requires frequent adjustment of the working distance or position of the measuring device, further increasing the complexity of detection and the risk of error. Therefore, an improved detection technology is urgently needed to solve the existing problems. Summary of the invention

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

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

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

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

[0010] A circular outer frame, which is arranged at intervals on 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] A laser emitter, wherein the laser emitter is disposed at the bottom four 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 is arranged at the four corners of the circular bottom frame, and the top of the laser receiving plate is provided with a plurality of circles of annular scale lines spread out along the center, and the centers of the plurality of circles of annular scale lines are arranged directly opposite to the laser emitter above;

[0015] A driving member is used to drive the plurality 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 respectively. 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 members 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 is slidably passed 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 fixedly arranged 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 rotation axis of the first ring body and 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 and located in the same plane relative to the rotation axis between the second ring body and the first ring body, and the laser emitter is coaxially fixedly arranged at the center position of the second ring body.

[0021] Furthermore, the driving member includes a motor, which is connected to the roller and 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 through 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 formed by splicing multiple sections of rods, and the rods on the circular inner frame, circular outer frame and circular bottom frame are each connected to each other through plug blocks and slots and fixed by screw thread insertion.

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

[0026] A method for using a laser scanning high bridge pier verticality detection device, which is applicable to the laser scanning high bridge pier verticality detection device in the above scheme, 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: The circular inner frame and the circular outer frame are placed on the outer periphery of the high bridge pier, and the circular outer frame is ensured to be located 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 member 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 solution of the embodiment of the present invention has at least the following advantages and beneficial effects:

[0032] 1. The present invention has significant advantages by using a driving member to drive the circular inner frame and the circular outer frame to move upward from the bottom of the high bridge pier. Specifically, the circular inner frame can adjust its diameter according to the diameter change of the high bridge pier along the height direction during the upward movement, and maintain stable upward movement. Since the diameters of some high bridge piers are usually not completely consistent at different heights, the variable diameter characteristics of the circular inner frame enable it to adapt to this irregularity, thereby ensuring a good fit with different diameter areas, and effectively improving the adaptability and accuracy of the measurement.

[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. The stability of the circular outer frame ensures that during the detection process, the laser transmitters at the four corners can accurately illuminate the laser receiving plate on the circular bottom frame and perform fixed-point detection on the high bridge pier, further ensuring the accuracy of the detection. In specific operations, the infrared light spot emitted by the laser transmitter is irradiated onto the laser receiving plate, and the offset of the high bridge pier is judged by the position of the light spot. If the light spots at multiple fixed-point positions deviate from the center of the laser receiving plate, it can be clearly pointed out that the high bridge pier is offset, thereby judging its verticality.

[0034] In addition, the laser transmitter is located at the bottom and is directly aligned with the center of the laser receiving plate. As the circular inner frame and the circular outer frame move upward, the initial position of the laser transmitter remains aligned with the center of the receiving plate, avoiding the alignment problem of long-distance laser transmitters and receivers in traditional methods. This design simplifies the alignment process, reduces the difficulty of operation, and greatly improves the convenience of operation. At the same time, it avoids manual climbing on high bridge piers for high-altitude operations, thereby improving safety. In this way, the overall measurement is not only more accurate, but also more efficient, which can ensure the reliability and high precision of high bridge pier verticality detection.

[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 in 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. 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, the laser emitter can self-level to ensure the accuracy of the measurement data.

[0036] In addition, by monitoring the changes in the position of the laser irradiation point, the inclination of the high bridge pier can be determined to a certain extent. If the high bridge pier has a certain inclination, its slope can be obtained through simple calculation. Specifically, the light emitted by the laser can be regarded as the right angle side of the right triangle, and the pile body of the high bridge pier, that is, the climbing height, is the hypotenuse. Through the ratio of the two, the inclination angle of the high bridge pier can be quickly calculated, and then 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 drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

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

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

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

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

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

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

[0044] Figure 7The present invention is intended to show a specific structural schematic diagram of a circular inner frame, a circular outer frame and a circular bottom frame spliced ​​by a rod body;

[0045] Icon: 1-reciprocating inner frame, 12-elastic deformation plate, 121-arc deformation part, 122-weak deformation part, 13-connecting rod, 2-roller, 21-fixed frame, 211-installation cylinder, 2111-fixing bolt, 212-bracket, 3-reciprocating outer frame, 31-laser transmitter, 32-guide cylinder, 4-positioning piece, 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-insertion block, 92-slot, 93-screw, 100-ground. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 here 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 claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are 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 accuracy and stability.

[0050] The circular inner frame 1 is the core part of the entire detection device. Multiple groups of rollers 2 are evenly arranged around it, and these rollers 2 face the outer wall of the high bridge pier. The circular inner frame 1 can be expanded or shrunk synchronously in all directions, thereby adjusting its size so that multiple groups of rollers 2 can stably abut against the outer wall of the high bridge pier, ensuring that the circular inner frame 1 always fits the outer wall of the bridge pier. This design enables the device to adapt to bridge piers of different sizes and shapes, ensuring stability and efficiency during measurement;

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

[0052] The positioning members 4 are a plurality of small parts installed between the circular inner frame 1 and the circular outer frame 3, and are evenly arranged 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 up and down movement, so as to avoid measurement errors caused by the spacing change;

[0053] The laser emitter 31 is arranged at the bottom four corners of the circular outer frame 3, and emits a laser beam upward to illuminate the laser receiving plate 51 below. The arrangement of the laser emitter 31 ensures that the laser beam can be evenly illuminated to multiple receiving positions of the laser receiving plate 51, providing high-precision measurement data for the detection of the verticality of high bridge piers;

[0054] 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. In order to adjust the circular bottom frame 5 to be horizontal, a plurality of adjusting studs 81 are evenly threadedly connected around the circular bottom frame 5. The bottom ball joints of the adjusting studs 81 are provided with horizontal plates 82. The horizontal plates 82 are used to abut against the ground 100. The horizontality of the circular bottom frame 5 can be adjusted by rotating the adjusting studs 81. A level bubble 8 is provided on the circular bottom frame 5 to ensure that the entire device is in a horizontal state, so as to ensure that the optical path between the laser transmitter 31 and the laser receiving board 51 is always in an accurate position.

[0055] The laser receiving plate 51 is fixedly installed at the top four corners of the circular bottom frame 5, and the top of each receiving plate is provided with multiple circles of circular scale lines 511 spreading along the center. The center of the multiple circles of circular scale lines 511 is directly opposite to the laser emitter 31 above. The design of the laser receiving plate 51 enables it to accurately receive the laser beam emitted by the laser emitter 31 and detect the verticality of the bridge pier through the change of the light spot. If the light spot is offset at different detection points, it means that the high bridge pier is tilted.

[0056] The driving member 6 is used to drive the multiple groups of rollers 2 to rotate synchronously, and can lock them to any position after rotation. The driving member 6 drives the rollers 2 to rotate through the motor 61 or other power source, so that the circular inner frame 1 and the circular outer frame 3 can move up and down along the outer wall of the high bridge pier. The locking function of the driving member 6 can ensure that the circular inner frame 1 and the circular outer frame 3 remain stable during the detection process to avoid any unnecessary displacement or error.

[0057] Reference Figure 1 and Figure 3As shown, elastic deformation plates 12 are provided at the four corners of the circular inner frame 1, and the ends of the four elastic deformation plates 12 are fixedly connected by connecting rods 13, and the four connecting rods 13 and the four elastic deformation plates 12 together form a circular structure. The overall shape of the elastic deformation plate 12 is V-shaped, and its structural design can effectively improve the stability and adaptability of the circular inner frame 1 on the outer wall of the high bridge pier.

[0058] Specifically, an arc-shaped deformation portion 121 is provided at the tip of the V-shaped elastic deformation plate 12. This design can ensure that the deformation portion will not be excessively deformed during the elastic deformation process, thereby avoiding the impact on the stability of the structure. The V-shaped structure design makes the elastic deformation plate 12 have strong elasticity while maintaining flexibility, and can better adapt to the curved surface changes of the outer wall of the high bridge pier, ensuring that the circular inner frame 1 can always be smoothly and firmly attached to the outer wall of the bridge pier during the rising process.

[0059] In addition, both ends of the V-shaped elastic deformation plate 12 have weak deformation parts 122. These weak deformation parts 122 are key components in the design of the elastic deformation plate 12, and can be deformed preferentially when the four connecting rods 13 are deformed, thereby avoiding the instability caused by the simultaneous deformation of the four connecting rods 13. The preferential deformation of the weak deformation parts 122 helps to control the overall deformation process, thereby improving the controllability and stability of the deformation. Through this design, the elastic deformation plate 12 can evenly distribute stress during the deformation of the four connecting rods 13, ensuring that the fit between the circular inner frame 1 and the outer wall of the high bridge pier is more stable.

[0060] The design of the elastic deformation plate 12 also enables the roller 2 of the circular inner frame 1 to stably fit the outer wall of the high bridge pier. When the circular inner frame 1 moves up and down along the outer wall of the high bridge pier, the elastic deformation plate 12 provides sufficient elastic force to ensure that the roller 2 can apply pressure evenly, avoiding measurement errors caused by uneven fitting or slipping. This design can improve the adaptability of the equipment in complex construction environments and ensure the accuracy and stability of the verticality detection of high bridge piers.

[0061] Reference Figure 3 and Figure 4As shown, each group 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 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. In another implementation, when the spring 42 is 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, so that when the circular outer frame 3 is placed on the circular bottom frame 5, the guide cylinder 32 and the limiting cylinder 512 can realize positioning, 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 rotation axis of the first ring body 71 and the fixing ring 7 is 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 is 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 position 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 uses a self-locking motor 61. The self-locking motor 61 has a unique working principle and can automatically lock its rotation position after stopping operation, thereby avoiding the accidental displacement or reverse rotation of the circular inner frame 1 or the circular outer frame 3 due to external force during the high bridge pier inspection process.

[0065] After the self-locking motor 61 stops working, it can lock the rotation position by itself. This feature enables the circular inner frame 1 and the circular outer frame 3 to stay stably at multiple detection points during the high bridge pier detection process without the need for additional braking devices or external control, reducing the complexity of mechanical components and potential failure points. It should be emphasized that each motor 61 needs to run 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 use 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 rising distance of the roller 2, so as to obtain the approximate angle value of the high bridge pier according to the rising 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 group of rollers 2 is provided with at least two rollers 2 in the vertical direction to ensure that the rollers 2 can stably rotate and avoid deviation or jamming when the circular inner frame 1 and the circular outer frame 3 are ascending or descending along the high bridge pier. Specifically, in this embodiment, each group of rollers 2 is provided with two rollers 2, and the stability and stability of the rollers 2 during the rotation process are ensured through reasonable layout and installation.

[0067] In order to improve the stability of the roller 2 and prevent it from slipping, the peripheral wall of the roller 2 is provided with anti-skid textures. These anti-skid textures can not only increase the friction between the roller 2 and the outer wall of the pier, prevent the roller 2 from slipping during movement, ensure the smooth up and down movement of the circular inner frame 1 and the circular outer frame 3, but also effectively improve the safety of the equipment during high-altitude operation, and avoid measurement errors or equipment damage caused by the roller 2 slipping.

[0068] Each group of rollers 2 is connected through a fixing frame 21. The fixing frame 21 includes a mounting tube 211 and a bracket 212. The mounting tube 211 is slidably mounted on the connecting rod 13. The rotation axis of the roller 2 is parallel to the connecting rod 13. This design enables the roller 2 to roll smoothly in the vertical direction. The bracket 212 is fixed to both sides of the mounting tube 211 by welding. The bracket 212 firmly supports the roller 2 to keep it in a stable rotation state, avoiding the situation where the roller 2 is tilted or uneven during use. The rotation connection of each roller 2 is realized by the bracket 212 to ensure that the roller 2 is not hindered when rotating.

[0069] In order to install and fix each group of rollers 2, a fixing bolt 2111 is threadedly connected to the installation cylinder 211, and the bolt abuts against the connecting rod 13 to ensure a firm connection between the fixing frame 21 and the roller 2. This design ensures that the roller 2 will not loosen or shift during the entire detection process, thereby ensuring the stability of the circular inner frame 1 and the circular outer frame 3, and improving the accuracy of the measurement process.

[0070] Reference Figure 7 As shown, the circular inner frame 1, the circular outer frame 3 and the circular bottom frame 5 are all made of multiple sections of rod bodies 9. The rod bodies 9 of each frame are connected to each other by a combination of plug blocks 91 and slots 92, which ensures the stability of the structure and the characteristics of easy disassembly and assembly. Specifically, each section of the rod body 9 is provided with a slot 92, and the plug block 91 is square in design and can be tightly inserted into the slot 92 matched therewith, ensuring that each rod body 9 can be accurately connected. Through the cooperation of the plug block 91 and the slot 92, not only the efficient connection of each rod body 9 is achieved, but also the rapid assembly and disassembly of the overall frame can be facilitated.

[0071] To further enhance the stability of the connection, after the plug block 91 is connected to the slot 92, it is fixed by threaded insertion through the screw 93. The threaded connection ensures the firmness of the connection and avoids loose connection or structural instability due to external forces during use. The position design of each slot 92 and plug block 91 is precisely calculated to ensure the stability and uniform force of the frame and avoid structural deformation or tilt during high-altitude operation or high bridge pier inspection.

[0072] This design makes the circular inner frame 1, the circular outer frame 3 and the circular bottom frame 5 very convenient during assembly and transportation, and the size can be quickly adjusted or reassembled according to actual needs. In addition, the design of the square plug block 91 also enhances the matching accuracy between the rods 9, reduces the measurement inaccuracy caused by assembly errors, and thus improves the stability and accuracy of the verticality detection of high bridge piers.

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

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

[0075] S1: The circular bottom frame 5 is set under the high bridge pier and installed horizontally on the ground 100;

[0076] S2: The circular inner frame 1 and the circular outer frame 3 are sleeved 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 need to 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 a plurality of preset detection points, and stop at each detection point to observe and record the positions of the laser spots on the laser receiving plates 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 only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high bridge pier verticality detection device based on laser scanning, characterized in that: include: A circular inner frame (1), wherein the circular inner frame (1) is evenly provided with a plurality of groups of rollers (2) along the periphery, the plurality of groups of rollers (2) are all arranged directly opposite to the outer wall of the high bridge pier, and the circular inner frame (1) can be synchronously expanded or shrunk toward the periphery to adjust the size, so that the plurality of groups of rollers (2) stably abut against the outer wall of the high bridge pier; A circular outer frame (3), the circular outer frame (3) being arranged at intervals on the outer side of 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 a plurality of groups, and the plurality of 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; A laser emitter (31), wherein the laser emitter (31) is 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 four corners of the circular bottom frame (5), the top of the laser receiving plate (51) being provided with a plurality of circles of annular scale lines (511) spreading out along the center, the centers of the plurality of circles of the annular scale lines (511) being arranged directly opposite to the laser emitter (31) above; A driving member (6), wherein the driving member (6) is used to drive the plurality of groups of rollers (2) to rotate synchronously and lock them to any position after the rotation.

2. The high bridge pier verticality detection device based on laser scanning according to claim 1 is characterized in that: 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), the four connecting rods (13) and the elastic deformation plates (12) at the four corners together form a circular shape, the elastic deformation plate (12) is V-shaped as a whole, and the tip of the V-shaped elastic deformation plate (12) has an arc-shaped deformation portion (121).

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

4. The high bridge pier verticality detection device based on laser scanning according to claim 2 is characterized in that: Each group of the 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 inserted through the circular outer frame (3); 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).

5. The high bridge pier verticality detection device based on laser scanning according to claim 4 is characterized in that: Guide cylinders (32) are fixedly arranged 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 arranged 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).

6. The high bridge pier verticality detection device based on laser scanning according to claim 5 is characterized in that: A fixing ring (7) is coaxially fixedly arranged 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 fixing ring (7) have rotation axes arranged horizontally, the second ring body (72) and the first ring body (71) have rotation axes arranged horizontally, the first ring body (71) and the fixing ring (7) have rotation axes arranged perpendicularly to each other and are located in the same plane relative to the rotation axes 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).

7. The high bridge pier verticality detection device based on laser scanning according to claim 1 is characterized in that: The driving member (6) comprises 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 (61); And / or, a level bubble (8) is provided on the circular bottom frame (5).

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

9. 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 a plurality 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 via insert blocks (91) and slots (92) and are fixed by screw threading via screws (93).

10. A method for using a laser scanning high bridge pier verticality detection device, applicable to the laser scanning high bridge pier verticality detection device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: The circular bottom frame (5) is sleeved 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 sleeved 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) need to be aligned with the center of the laser receiving plate (51) on the circular bottom frame (5); S3: starting the driving member (6), driving the circular inner frame (1) and the circular outer frame (3) to move up along the high bridge pier to a plurality of preset detection points, and pausing at each detection point to observe and record the positions of the laser spots on the laser receiving plates (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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