Pile foundation surface defect detector
By combining a flexible track and an infrared detection module, automated inspection of the surface of medium and large-sized pile foundations has been achieved, solving the omission problem of traditional inspection methods and improving inspection accuracy and efficiency.
Patent Information
- Application Number
- CN202520428693.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-12
AI Technical Summary
Existing technologies are insufficient for effectively detecting surface defects in medium and large-sized pile foundations, especially defects such as cracks, voids, spalling, and deformation. Furthermore, traditional detection methods are prone to omissions and are highly dependent on the environment.
A flexible track with linear scanning and an infrared detection module are used to achieve automated detection of the pile foundation surface through a moving base on the flexible track and a moving detection module. Data generated by the infrared detection module is used to analyze defects.
It enables efficient and automated inspection of the surface of medium and large pile foundations, reduces inspection omissions, lowers dependence on environmental quality, and improves inspection accuracy and efficiency.
Smart Images
Figure CN223827581U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of detection, in particular to a pile surface defect detector. BACKGROUND
[0002] Pile surface defects mainly include cracks, cavities, peeling, unevenness and deformation, etc. These defects, when serious, will directly affect the performance of the pile. For small piles, detection can be performed by manual inspection or handheld device inspection, but for medium and large piles, these two detection methods are no longer applicable, mainly because they are prone to omissions and require climbing operations.
[0003] Currently, there are explorations of using photo detection combined with neural network analysis, but this method requires training and long-term use for correction, and is currently in the small-scale use and adjustment stage, and has certain requirements for the quality of the photos. Poor quality of on-site photos can easily lead to misjudgment. SUMMARY
[0004] The present application provides a pile surface defect detector, which uses a straight-line scanning method to automatically detect the surface of the pile. The data generated by this method can be directly used for analysis and is not easily affected by the surrounding environment.
[0005] The above-mentioned object of the present application is achieved by the following technical solution:
[0006] The present application provides a pile surface defect detector, comprising:
[0007] A flexible track;
[0008] A moving base is arranged on the flexible track, and the moving base can move on the flexible track;
[0009] A detection moving module is arranged on the moving base, and the axis direction of the detection moving module is perpendicular to the moving direction of the moving base;
[0010] An infrared detection module is arranged on the detection moving module, and the infrared detection module is configured to reciprocate on the detection moving module. The detection data of the infrared detection module is used to analyze the pile surface defects.
[0011] In a possible implementation manner of the present application, the flexible track comprises a flexible belt and track segments sequentially fixed on the flexible belt;
[0012] There is a gap between adjacent track segments.
[0013] In a possible implementation manner of the present application, the width of the gap between adjacent track segments is 1-2 mm.
[0014] In one possible implementation of this application, the number of flexible tracks is two.
[0015] In one possible implementation of this application, the infrared detection module includes:
[0016] The detection substrate is fixedly mounted on the detection moving module.
[0017] Both the signal transmitter and the signal receiver are fixedly mounted on the detection base plate;
[0018] The communicator is electrically connected to the signal receiver and is used to send the data detected by the signal receiver to the host computer.
[0019] The receiving area on the signal receiver is rectangular in shape.
[0020] The size of the receiving area on the signal receiver is larger in the direction of movement parallel to the detection substrate than in the direction of movement perpendicular to the detection substrate.
[0021] In one possible implementation of this application, there are multiple sets of signal transmitters and signal receivers.
[0022] In one possible implementation of this application, a signal transmitter has multiple signal transmitting ends, and the multiple signal transmitting ends on the same signal transmitter are arranged in parallel.
[0023] In one possible implementation of this application, a signal transmitter has multiple signal transmitting ends, and an array of multiple signal transmitting ends on the same signal transmitter is arranged.
[0024] The tilt angle of the signal transmitter tends to increase in the direction away from the signal receiver. Attached Figure Description
[0025] Figure 1 This is a structural schematic diagram of a pile foundation surface defect detector provided in this application.
[0026] Figure 2 This is a structural schematic diagram of a detection moving module and an infrared detection module provided in this application.
[0027] Figure 3 This is a structural schematic diagram of a flexible track provided in this application.
[0028] Figure 4 yes Figure 2 An enlarged schematic diagram of part A in the middle.
[0029] Figure 5 This is a schematic diagram illustrating the working principle of a communicator provided in this application.
[0030] Figure 6 This is a schematic diagram illustrating the principle of a detection process provided in this application.
[0031] Figure 7 This is a schematic diagram of a curve drawn based on a signal receiver, as provided in this application.
[0032] In the diagram, 1 is the flexible track, 2 is the movable base, 3 is the detection moving module, 4 is the infrared detection module, 11 is the flexible belt, 12 is the track section, 41 is the detection substrate, 42 is the signal transmitter, 43 is the signal receiver, and 44 is the communicator. Detailed Implementation
[0033] The technical solutions in this application will be further described in detail below with reference to the accompanying drawings.
[0034] This application discloses a pile foundation surface defect detector. Please refer to [link / reference]. Figure 1 and Figure 2 In some examples, the pile foundation surface defect detector disclosed in this application includes four parts: a flexible track 1, a movable base 2, a detection movable module 3, and an infrared detection module 4. The movable base 2 is installed on the flexible track 1, and its function is to move on the flexible track 1, thereby driving the detection movable module 3 installed on the movable base 2 to rotate around the axis of the pile foundation.
[0035] In some possible implementations, the movable base 2 is fixed to the flexible track 1 through at least three contact surfaces.
[0036] In some possible implementations, the power source for the movable base 2 is a motor, and the rotating wheel mounted on the motor shaft contacts the flexible track 1, driving the movable base 2 to move through friction.
[0037] The axis of the detection moving module 3 is perpendicular to the moving direction of the moving base 2. The infrared detection module 4 on the detection moving module 3 is configured to reciprocate on the detection moving module 3. That is, the detection moving module 3 needs to use a linear module, and the infrared detection module 4 is mounted on the moving plate of the linear module.
[0038] For some possible implementations, please refer to Figure 3 The flexible track 1 includes a flexible belt 11 and track sections 12 that are sequentially fixed on the flexible belt 11. The flexible belt 11 is generally made of soft materials such as rubber, and the track sections 12 are generally made of hard plastic and are fixed to the flexible belt 11 by adhesive bonding.
[0039] When in use, first attach the flexible strip 11 to the outer wall of the pile foundation, and fix both ends with buckles or ropes. At this time, the posture of the track section 12 will be adjusted synchronously, and a V-shaped gap will appear between adjacent track sections 12.
[0040] When the flexible belt 11 is in a horizontal position, there needs to be a gap between adjacent track sections 12. The purpose of the gap is to accommodate a certain amount of deformation. The width of the gap between adjacent track sections 12 is 1-2 mm.
[0041] The number of flexible tracks 1 is generally two, which allows the detection moving module 3 to be fixed by using two points to determine a straight line. This ensures the stability of the detection moving module 3 during movement and prevents changes in the posture of the detection moving module 3 during the detection process.
[0042] Please see Figure 4 and Figure 5 The infrared detection module 4 includes a detection substrate 41, a signal transmitter 42, a signal receiver 43, and a communicator 44. The detection substrate 41 is fixedly mounted on the detection moving module 3, and the signal transmitter 42 and the signal receiver 43 are both fixedly mounted on the detection substrate 41.
[0043] The communicator 44 is electrically connected to the signal receiver 43. Its function is to send the data detected by the signal receiver 43 to the host computer. After the host computer analyzes the data, it displays the detection record on the display screen.
[0044] The receiving area on the signal receiver 43 is rectangular in shape, and the size of the receiving area on the signal receiver 43 is required to be greater in the direction of movement parallel to the detection substrate 41 than in the direction of movement perpendicular to the detection substrate 41.
[0045] In some possible implementations, there are multiple sets of signal transmitters 42 and signal receivers 43, with the aim of improving detection efficiency through synchronous detection.
[0046] In some possible implementations, a signal transmitter 42 has multiple signal transmitting ends, and the multiple signal transmitting ends on the same signal transmitter 42 are arranged in parallel. This method can also improve detection efficiency.
[0047] Furthermore, a signal transmitter 42 has multiple signal transmitting ends, and the multiple signal transmitting ends on the same signal transmitter 42 are arranged in an array;
[0048] The tilt angle of the signal transmitter tends to increase in the direction away from the signal receiver 43.
[0049] The specific analysis process for the data detected by signal receiver 43 is as follows:
[0050] Please see Figure 6 and Figure 7The light emitted by the signal transmitter 42 is reflected on the surface of the pile foundation and detected by the signal receiver 43. At this time, the receiving position of the signal receiver 43 is marked as position 1. In the subsequent continuous detection process, position 2, position 3 and so on until position n will be generated sequentially.
[0051] Each location has coordinates, and a curve can be drawn based on these coordinates, such as... Figure 7 As shown, after obtaining the curve, the change in height can be used to reflect the surface quality of the pile foundation. If it is within the set allowable range (below the dashed line), it indicates that the surface quality of the pile foundation is qualified; otherwise (above the dashed line), it indicates that the surface quality of the pile foundation has defects.
[0052] In some possible implementations, the laser emitted by the signal transmitter 42 has a certain coarseness to avoid micro-roughness.
[0053] The specific method for drawing the curve is determined by the center point of the region on the signal receiver 43. If the center points of the two positions are both located in the same region, then the height change is considered to be zero.
[0054] For the signal receiver 43 and the communicator 44, a microprocessor is generally used for control and data communication. The microprocessor can be a single-chip microcomputer, such as TSM32. Data from the signal receiver 43 is sent to the communicator 44 via the microprocessor.
[0055] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A pile foundation surface defect detector, characterized in that, include: Flexible track (1); A movable base (2) is set on a flexible track (1), and the movable base (2) is able to move on the flexible track (1); The detection moving module (3) is set on the moving base (2), and the axis of the detection moving module (3) is perpendicular to the moving direction of the moving base (2). An infrared detection module (4) is mounted on a detection moving module (3). The infrared detection module (4) is configured to move back and forth on the detection moving module (3). The detection data of the infrared detection module (4) is used to analyze the surface defects of the pile foundation.
2. The pile foundation surface defect detector according to claim 1, characterized in that, The flexible track (1) includes a flexible belt (11) and track sections (12) that are sequentially fixed on the flexible belt (11); There is a gap between adjacent track sections (12).
3. The pile foundation surface defect detector according to claim 2, characterized in that, The width of the gap between adjacent track sections (12) is 1-2 mm.
4. The pile foundation surface defect detector according to any one of claims 1 to 3, characterized in that, There are two flexible tracks (1).
5. The pile foundation surface defect detector according to claim 1, characterized in that, The infrared detection module (4) includes: The detection substrate (41) is fixedly mounted on the detection moving module (3). The signal transmitter (42) and the signal receiver (43) are both fixedly mounted on the detection substrate (41); The communicator (44) is electrically connected to the signal receiver (43) and is used to send the data detected by the signal receiver (43) to the host computer. The receiving area on the signal receiver (43) is rectangular in shape; The size of the receiving area on the signal receiver (43) is greater in the direction of movement parallel to the detection substrate (41) than in the direction of movement perpendicular to the detection substrate (41).
6. The pile foundation surface defect detector according to claim 5, characterized in that, The number of signal transmitters (42) and signal receivers (43) is multiple.
7. The pile foundation surface defect detector according to claim 5, characterized in that, A signal transmitter (42) has multiple signal transmitting ends, and the multiple signal transmitting ends on the same signal transmitter (42) are arranged in parallel.
8. The pile foundation surface defect detector according to claim 5, characterized in that, A signal transmitter (42) has multiple signal transmitting ends, and the multiple signal transmitting ends on the same signal transmitter (42) are arranged in an array; The tilt angle of the signal transmitter tends to increase in the direction away from the signal receiver (43).