A flaw detector for prefabricated components
The adaptive ultrasonic probe system solves the efficiency problem of inspecting large-volume, complex-shaped prefabricated components, achieving greater coverage and faster inspection speed, and is suitable for various inspection environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NINGJIN COUNTY ANTAI ENG INSPECTION CO LTD
- Filing Date
- 2023-12-04
- Publication Date
- 2026-07-31
AI Technical Summary
Existing technologies are difficult to quickly and effectively detect the internal condition of large-volume, complex-shaped precast components, especially when adjusting the probe position on curved surfaces, where there are many and cumbersome detection points.
The adaptive ultrasonic probe system includes components such as a detection substrate, guide sleeve, sliding base, flexible ring, and spring, which enables the ultrasonic probe to extend and retract axially and swing circumferentially to adapt to different detection surfaces. Combined with electromagnets and control switches, the shape and spacing of the detection substrate can be adjusted to improve detection efficiency.
It achieves a larger single-pass coverage area and faster detection speed, adapts to planar and curved surface detection, and is suitable for both manual and automated equipment, improving the flexibility and efficiency of detection.
Smart Images
Figure CN117517473B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automated testing technology for building construction quality, and in particular to a flaw detector for precast components. Background Technology
[0002] Precast components are widely used in the construction phases of roads, bridges, buildings, and factories. Precast components are produced in factories to obtain higher precision and quality concrete parts, which are then transported to the site for installation. Considering the practical factors such as production and transportation, precast components are mostly large-volume concrete parts.
[0003] For internal inspection of precast components, flaw detectors are currently the most common method. The probes of these flaw detectors determine the internal condition of the precast components by emitting detection waves (sound waves, electromagnetic waves) and transmitting feedback waveforms. When using precast components to construct buildings and factories, these components are often relatively regular-shaped concrete workpieces. These concrete workpieces are easier to inspect because the inspection surfaces are mostly flat. The disadvantage is that there are many monitoring points. Precast components used in the construction of roads and bridges contain curved surfaces. Besides the large number of monitoring points, the probe positions also need to be adjusted for the curved surfaces.
[0004] With the increasing number of large-volume, complex prefabricated components, the number of inspection points is also rapidly increasing, making rapid inspection an important research topic. Summary of the Invention
[0005] This application provides a flaw detector for precast components, which uses an adaptive adjustment method to enable the ultrasonic probe to automatically adjust its orientation according to the contact detection surface, thereby achieving regionalized detection inside the precast components and obtaining a faster detection speed.
[0006] The above-mentioned objective of this application is achieved through the following technical solution:
[0007] This application provides a flaw detector for precast components, including:
[0008] Test substrate;
[0009] Multiple guide sleeves are arranged on the detection substrate in an MxN matrix form, where M and N are both natural numbers greater than zero;
[0010] The sliding base is slidably connected to the guide sleeve.
[0011] The ultrasonic probe has its connecting end inserted into the sliding base;
[0012] The flexible ring has its inner and outer walls abutting against the inner wall of the sliding base and the outer wall of the ultrasonic probe, respectively.
[0013] A spring is located inside the guide sleeve, with its two ends abutting against the guide sleeve and the sliding base, respectively.
[0014] The main unit is electrically connected to the ultrasonic probe and is configured to drive the ultrasonic probe to work and provide detection results based on the feedback from the ultrasonic probe.
[0015] One of the sliding bases contains at least one flexible ring.
[0016] In one possible implementation of this application, a flexible pad is provided inside the sliding base;
[0017] The connection end of the ultrasonic probe rests against the base of the flexible pad.
[0018] In one possible implementation of this application, the hardness of the flexible pad is less than the hardness of the flexible ring.
[0019] In one possible implementation of this application, the detection substrate includes a plurality of sequentially hinged sub-detection substrates;
[0020] Each sub-detection substrate is provided with M or N guide sleeves at intervals;
[0021] Also includes:
[0022] An electromagnet is provided on the side of the sub-detection substrate adjacent to other sub-detection substrates;
[0023] The control switch is located on the sub-detection board and is electrically connected to the electromagnet.
[0024] In one possible implementation of this application, an electromagnet is provided on one side of the sub-detection substrate.
[0025] In one possible implementation of this application, the detection substrate includes a plurality of sequentially connected sub-detection substrates;
[0026] Two adjacent sub-detection substrates are respectively provided with a slider and a swing rod that is inserted into the slider;
[0027] The first end of the slider is slidably connected to the sub-detection substrate, and the second end can extend out of the sub-detection substrate and retract into the sub-detection substrate.
[0028] The first end of the swing rod is located inside the sub-detection substrate, and the second end is located outside the sub-detection substrate.
[0029] Each sub-detection substrate is provided with M or N guide sleeves at intervals;
[0030] Also includes:
[0031] An electromagnet is provided on the side of the sub-detection substrate adjacent to other sub-detection substrates;
[0032] The control switch is located on the sub-detection board and is electrically connected to the electromagnet.
[0033] In one possible implementation of this application, an electromagnet is provided on one side of the sub-detection substrate.
[0034] In one possible implementation of this application, two sets of sliders and swing rods that are inserted into the sliders are provided on two adjacent sub-detection substrates.
[0035] In one possible implementation of this application, the slider and the swing rod are respectively provided with a socket and a short shaft that matches the socket. Attached Figure Description
[0036] Figure 1 This is a schematic diagram of the distribution of a guide sleeve on a detection substrate provided in this application.
[0037] Figure 2 This is a schematic diagram of the fixing of an ultrasonic probe provided in this application.
[0038] Figure 3 This is a schematic diagram illustrating the principle of an ultrasonic probe moving in the axial direction, as provided in this application.
[0039] Figure 4 This is a schematic diagram illustrating the principle of an ultrasonic probe oscillating in the circumferential direction, as provided in this application.
[0040] Figure 5 This is a schematic diagram of the position of the ultrasonic probe during the first type of flaw detection process provided in this application.
[0041] Figure 6 This is a schematic diagram showing the position of the ultrasonic probe during the second type of flaw detection process provided in this application.
[0042] Figure 7 This is a schematic diagram showing the position of the ultrasonic probe during the third type of flaw detection process provided in this application.
[0043] Figure 8 This is a schematic diagram of the position of the ultrasonic probe during the fourth type of flaw detection process provided in this application.
[0044] Figure 9 This is a structural schematic diagram of a detection substrate provided in this application.
[0045] Figure 10 This is a schematic diagram showing the positions of an electromagnet and a control switch on a detection substrate provided in this application.
[0046] Figure 11 This is a schematic diagram of the connection between two detection substrates provided in this application.
[0047] Figure 12This is a schematic diagram illustrating the principle of increasing the distance between two detection substrates provided in this application.
[0048] Figure 13 This is a schematic diagram illustrating the principle of angle change detection between two detection substrates provided in this application.
[0049] Figure 14 This is a schematic diagram of the connection between a slider and a swing rod provided in this application.
[0050] In the diagram, 2 is the main unit, 11 is the detection base plate, 12 is the guide sleeve, 13 is the sliding base, 14 is the ultrasonic probe, 15 is the flexible ring, 16 is the spring, 21 is the flexible pad, 111 is the sub-detection base plate, 112 is the electromagnet, 113 is the control switch, 114 is the slider, 115 is the swing rod, 116 is the socket, and 117 is the short shaft. Detailed Implementation
[0051] The technical solutions in this application will be further described in detail below with reference to the accompanying drawings.
[0052] This application discloses a flaw detector for precast components. In some examples, the flaw detector for precast components disclosed in this application includes a detection base plate 11, a guide sleeve 12, a sliding base 13, an ultrasonic probe 14, a flexible ring 15, a spring 16, and a main unit 2. Please refer to [link to relevant documentation]. Figure 1 and Figure 2 Multiple guide sleeves 12 are mounted on the detection substrate 11, and the guide sleeves 12 are arranged in a matrix form of MxN (M and N are both natural numbers greater than zero).
[0053] In some possible implementations, the guide sleeve 12 is connected to the detection substrate 11 by a threaded connection, with one end of the guide sleeve 12 being directly screwed into the threaded hole on the detection substrate 11.
[0054] Please see Figure 2 Each guide sleeve 12 is equipped with a sliding base 13. The sliding base 13 is connected to the guide sleeve 12 in a sliding connection manner, that is, the sliding base 13 can move up and down relative to the detection substrate 11 (placed on a horizontal surface).
[0055] The vertical movement of the sliding base 13 is achieved by a spring 16, which is located inside the guide sleeve 12. Figure 3 As shown. The two ends of the spring 16 abut against the inner wall of the guide sleeve 12 and the connection end of the ultrasonic probe 14, respectively. When the sliding base 13 is pressed, the spring 16 is compressed; when the pressure on the sliding base 13 is removed, the spring 16 extends and simultaneously returns the sliding base 13 to its original position.
[0056] For ease of description, the two ends of the ultrasonic probe 14 are referred to as the detection end and the connection end, respectively. The connection end of the ultrasonic probe 14 extends into the sliding base 13, and the two are connected by a flexible ring 15. The inner wall and outer wall of the flexible ring 15 abut against the inner wall of the sliding base 13 and the outer wall of the ultrasonic probe 14, respectively. This can be described as the flexible ring 15 connecting the ultrasonic probe 14 and the sliding base 13 by means of compression deformation.
[0057] Of course, slots can also be made on the outer wall of the ultrasonic probe 14 and the inner wall of the sliding base 13 so that a part of the flexible ring 15 can be inserted into the slots.
[0058] Each sliding base 13 contains at least one flexible ring 15, and generally two flexible rings 15 are placed in one sliding base 13. The function of the flexible rings 15 is to enable the ultrasonic probe 14 to swing in the circumferential direction, such as... Figure 4 As shown.
[0059] The host 2 is electrically connected to the ultrasonic probe 14. Its function is to drive the ultrasonic probe 14 to work and to give the detection results based on the feedback of the ultrasonic probe 14. When the ultrasonic probe 14 works, it emits ultrasonic waves and receives reflected waves. Based on the emitted ultrasonic waves and the reflected waves generated by the ultrasonic waves, the internal structure of the prefabricated component can be obtained.
[0060] In some possible implementations, the ultrasonic probe 14 is connected via a plug, with the signal line leading from the host 2 and connected to the plug on the ultrasonic probe 14, for example... Figure 2 In the process, the connector on the ultrasonic probe 14 extends directly from the detection substrate 11.
[0061] As can be seen from the above description, the ultrasonic probe 14 in the precast component flaw detector provided in this application has axial extension and circumferential swing functions. In actual use, the matrix composed of ultrasonic probes 14 can fit on the plane ( Figure 5 As shown), it can also be fitted onto curved surfaces. Figure 6 As shown), it can also be attached to two surfaces simultaneously. Figure 7 and Figure 8 (As shown).
[0062] Compared to existing devices that use only one ultrasonic probe 14, the precast component flaw detector provided in this application has a larger single-pass coverage area and a faster detection speed in a single inspection process. It can be used not only by humans but also by automated inspection equipment (such as robotic arms).
[0063] In some examples, please refer to Figure 2The sliding base 13 has a flexible pad 21 inside, and the connecting end of the ultrasonic probe 14 abuts against the base of the flexible pad 21. The function of the flexible pad 21 is to support the ultrasonic probe 14 inside the sliding base 13 in conjunction with the flexible ring 15. As can be seen from the previous description, when the ultrasonic probe 14 achieves circumferential oscillation, there must be a gap between its connecting end and the bottom of the sliding base 13. The function of the flexible pad 21 is to fill this gap.
[0064] The flexible pad 21 not only fills the gaps but also provides some support, allowing the ultrasonic probe 14 to return to its original position when the external force disappears.
[0065] In some possible implementations, the hardness of the flexible pad 21 is less than the hardness of the flexible ring 15.
[0066] In some examples, please refer to Figure 9 The detection substrate 11 includes multiple sequentially hinged sub-detection substrates 111. Each sub-detection substrate 111 is provided with M or N guide sleeves 12 at intervals. In other words, the detection substrate 11 is composed of multiple sub-detection substrates 111. The position between adjacent sub-detection substrates 111 can be adjusted according to the actual detection environment.
[0067] An electromagnet 112 is provided on the side of the sub-detection substrate 111 adjacent to other sub-detection substrates 111. Each electromagnet 112 is equipped with a control switch 113, and the control switch 113 is located on the sub-detection substrate 111 where the matching electromagnet 112 is located.
[0068] During use, when the control switch 113 corresponding to the electromagnet 112 is turned on, the positions of the sub-detection substrates 111 on both sides of the electromagnet 112 in the working state are relatively fixed, while the positions of the sub-detection substrates 111 on both sides of the electromagnet 112 in the off state can be freely adjusted.
[0069] By turning the electromagnet 112 on and off at the corresponding positions, the width (or length) of the detection substrate 11 can be adjusted, and the usable area of the detection substrate 11 can be divided into multiple independent regions. Adjusting the width of the detection substrate 11 allows it to be inserted into a narrow area for detection, while dividing the usable area of the detection substrate 11 into multiple independent regions allows for simultaneous detection of multiple adjacent surfaces.
[0070] In some possible implementations, an electromagnet 112 is provided on one side of the sub-detection substrate 111.
[0071] In some examples, the detection substrate 11 includes a plurality of sequentially connected sub-detection substrates 111, each of which is provided with M or N guide sleeves 12 at intervals.
[0072] Please see Figure 11 Each of the two adjacent sub-detection substrates 111 is provided with a slider 114 and a swing rod 115 that is inserted into the slider 114. The function of the slider 114 and the swing rod 115 is to adjust the distance between the two sub-detection substrates 111, which can be regarded as adjusting the spacing of the ultrasonic probes 14.
[0073] The first end of the slider 114 is slidably connected to the sub-detection substrate 111, and the second end can extend out of the sub-detection substrate 111 and retract into the sub-detection substrate 111. The first end of the swing rod 115 is located inside the sub-detection substrate 111, and the second end is located outside the sub-detection substrate 111.
[0074] Adjusting the spacing ( Figure 12 As shown), the included angle between two adjacent sub-detection substrates 111 can also be adjusted. Figure 13 (As shown).
[0075] Adjusting the spacing can further expand the coverage area of a single detection, resulting in higher detection speeds. For example, for a single unit area, before adjustment, nine ultrasonic probes 14 were required for detection, while after adjustment, only seven ultrasonic probes 14 are needed. Before adjustment, nine ultrasonic probes 14 could cover 10 unit areas, while after adjustment, nine ultrasonic probes 14 can cover 12 unit areas.
[0076] The structure, quantity, and function of the electromagnet 112 and the control switch 113 are the same as those described above, and will not be repeated here.
[0077] In some examples, two sets of sliders 114 and swing rods 115 that are inserted into the sliders 114 are provided on two adjacent sub-detection substrates 111.
[0078] Please see Figure 14 In some possible implementations, the slider 114 and the swing rod 115 are respectively provided with a socket 116 and a short shaft 117 that matches the socket 116. The socket 116 and the short shaft 117 can realize a detachable connection based on plugging, for example, the short shaft 117 has an annular protrusion, while the inner wall of the socket 116 has an annular recess.
[0079] This allows for the selection of an appropriate number of sub-inspection substrates 111 based on the actual shape and size of the inspection location on the prefabricated component, making the prefabricated component flaw detector provided in this application more user-friendly.
[0080] 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 precast component flaw detector, characterized by, include: The test substrate (11) includes multiple guide sleeves (12) arranged in an MxN matrix on the test substrate (11), where M and N are both natural numbers greater than zero; a sliding base (13) slidably connected to the guide sleeves (12); an ultrasonic probe (14) with its connecting end extending into the sliding base (13); a flexible ring (15) with its inner and outer walls abutting against the inner wall of the sliding base (13) and the outer wall of the ultrasonic probe (14), respectively; a spring (16) located inside the guide sleeves (12), with its two ends abutting against the guide sleeves (12) and the sliding base (13), respectively; a host (2) electrically connected to the ultrasonic probe (14), configured to drive the ultrasonic probe (14) to work and provide test results based on the feedback from the ultrasonic probe (14); wherein, at least one flexible ring (15) exists within one sliding base (13); the test substrate (11) includes multiple sequentially connected sub-test substrates (111); Two adjacent sub-detection substrates (111) are respectively provided with a slider (114) and a swing rod (115) inserted into the slider (114); the first end of the slider (114) is slidably connected to the sub-detection substrate (111) and the second end can extend out of the sub-detection substrate (111) and retract into the sub-detection substrate (111); the first end of the swing rod (115) is located inside the sub-detection substrate (111) and the second end is located outside the sub-detection substrate (111); each sub-detection substrate (111) is provided with M or N guide sleeves (12) spaced apart; it also includes: an electromagnet (112) provided on the side of the sub-detection substrate (111) adjacent to other sub-detection substrates (111); and a control switch (113) provided on the sub-detection substrate (111) and electrically connected to the electromagnet (112).
2. The flaw detector for precast components according to claim 1, characterized in that, The sliding base (13) is provided with a flexible pad (21); the connecting end of the ultrasonic probe (14) abuts against the base of the flexible pad (21).
3. The flaw detector for precast components according to claim 2, characterized in that, The hardness of the flexible pad (21) is less than that of the flexible ring (15).
4. The flaw detector for precast components according to claim 1, characterized in that, An electromagnet (112) is provided on one side of the sub-detection substrate (111).
5. The flaw detector for precast components according to claim 1, characterized in that, Two sets of sliders (114) and swing rods (115) that are inserted into the sliders (114) are provided on two adjacent sub-detection substrates (111).
6. The flaw detector for precast components according to claim 1, characterized in that, The slider (114) and the swing rod (115) are respectively provided with a socket (116) and a short shaft (117) that matches the socket (116).