A large-area concrete structure strength automatic detection device and method

Abstract

The application discloses a large-area concrete structure strength automatic detection device and method, and relates to the technical field of concrete structure strength detection.

Description

Technical Field

[0001] This invention relates to the field of concrete structure construction technology in the building engineering field, and more specifically to an automatic strength testing device and method for large-area concrete structures. Background Technology

[0002] Concrete is one of the most commonly used materials in engineering construction. Testing the concrete strength of existing concrete structures is crucial for determining structural safety. Concrete compressive strength is the most important indicator of concrete strength, and commonly used testing methods include rebound hammer testing, core drilling, post-anchoring testing, and shear-compression testing. However, core drilling, post-anchoring, and shear-compression methods are destructive testing methods that can cause irreversible damage to concrete components. Rebound hammer testing, on the other hand, is a non-destructive method for testing concrete strength, making it the fastest, simplest, and most economical method for obtaining concrete quality and strength information, offering significant advantages.

[0003] According to the specifications, testing the concrete strength of structural members using a rebound hammer requires setting up more than ten test areas for a single member, such as a concrete beam. Depending on the model of the rebound hammer, each test area needs to have at least 16 test points, thus requiring a large amount of repetitive work. When conducting strength testing on large areas of concrete, such as the lining structure of urban subway tunnels, manual testing is labor-intensive and requires the erection of scaffolding and other auxiliary working platforms for high-altitude operations, resulting in high costs and low efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an automatic testing device and method for the strength of large-area concrete structures that reduces the workload of workers and improves testing efficiency during the concrete strength testing process.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an automatic strength testing device for large-area concrete structures, comprising a wall-climbing robot for crawling on the concrete surface and a rebound hammer for testing concrete strength, and further comprising a moving mechanism for controlling the rebound hammer to find the testing point, the rebound hammer being mounted on the moving mechanism, and the moving mechanism being mounted on the wall-climbing robot.

[0006] Furthermore, the mounting structure of the wall-climbing robot includes at least two connecting strips, two mounting shells, and four supporting legs. The two connecting strips are arranged in parallel, and the two sides of one connecting strip are connected to one side of each of the two mounting shells, while the two sides of the other connecting strip are connected to the other side of each of the two mounting shells. The four supporting legs are arranged in pairs on the two mounting shells, and the moving mechanism is arranged on the two connecting strips.

[0007] Furthermore, the moving mechanism includes a first motion component and a second motion component. The first motion component is disposed on the two mounting shells, and the second motion component is disposed on the two connecting strips, and the first motion component and the second motion component are slidably engaged.

[0008] Furthermore, the first motion component includes a support member and two sliders, the two sliders being respectively disposed on the two mounting shells, the support member being disposed parallel to the connecting strip, and the two sides of the support member being slidably connected to the two sliders respectively, and the support member being capable of reciprocating linear motion between the two mounting shells, and the rebound device being disposed on the support member.

[0009] Furthermore, the support includes a sleeve, a cylinder, and two slide bars. One end of each slide bar is slidably connected to the two sliders, and the other end is slidably connected to the outer wall of the sleeve. The fixed end of the cylinder is mounted on one of the slide bars, and the output end is connected to the sleeve. The rebound spring is fixed inside the sleeve, and the output end of the rebound spring is located at the bottom of the support.

[0010] Furthermore, the second motion component includes two receiving strips and two kits. The two receiving strips are arranged in parallel, with one end of each receiving strip connected to both sides of one connecting strip and the other end connected to both sides of the other connecting strip. The two kits are slidably fitted onto both sides of the support member, and the two kits can reciprocate linearly on the two receiving strips respectively. The two sliders can slide on the corresponding mounting shells respectively.

[0011] An automatic method for detecting the strength of large-area concrete structures, including an automatic detection device for the strength of large-area concrete structures, comprises the following steps:

[0012] S1. Prepare several marker stickers with QR codes and color blocks;

[0013] S2. After the concrete formwork is removed, multiple marker stickers are affixed to the corresponding component surfaces to be inspected.

[0014] S3. Complete the curing of the concrete;

[0015] S4. Input the information of the component to be tested into the wall-climbing robot, and dispatch the wall-climbing robot to perform the test;

[0016] S5. The wall-climbing robot identifies the color block of the marker sticker on the component, moves to its vicinity, reads the color code of the marker, and then reads the color information in the QR code on the marker sticker. It compares and judges whether the found marker is correct. If the search is correct, it records the component number and measurement point number in the QR code, continues to search for the sampling point on the marker sticker for a rebound test, and records the result. After the test is completed, it searches for the next measurement point. If the search is incorrect, it searches for the next marker sticker for judgment.

[0017] S6. After completing the rebound test of all sampling points on a component, save the data to the wall-climbing robot and start searching for the next component to be tested;

[0018] S7. Repeat S5 and S6 until all components have been inspected.

[0019] The beneficial effects of this invention are reflected in:

[0020] This invention relates to an automatic strength testing device for large-area concrete structures, which includes a wall-climbing robot, a rebound hammer, and a moving mechanism. The wall-climbing robot can crawl on the concrete surface and, after reaching a designated testing position, performs a rebound test using the onboard rebound hammer to obtain the measurement data for that testing position. Thanks to the robot's autonomous crawling capability, it can reach different testing positions, eliminating the need for scaffolding or other auxiliary work platforms for high-altitude operations during manual testing. This ensures worker safety and improves testing efficiency. The moving mechanism complements the requirement of at least 16 testing points in each testing area for rebound testing. By moving the rebound hammer to different testing points using the moving mechanism, the efficiency of the testing is further improved. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the automatic strength detection device for large-area concrete structures according to the present invention.

[0022] Figure 2 This is a schematic diagram of the moving mechanism structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the marking sticker structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the route for concrete strength testing inside the tunnel according to the present invention;

[0025] Figure 5 This is a flowchart of the operation of the present invention.

[0026] The components in the attached diagram are labeled as follows: 1. Wall-climbing robot; 101. Connecting bar; 102. Mounting shell; 103. Support leg; 2. Rebound device; 3. Moving mechanism; 301. First motion component; 3011. Support component; 3012. Slider; 3013. Sleeve; 3014. Cylinder; 3015. Slide bar; 302. Second motion component; 3021. Receiving bar; 3022. Kit; 4. Lighting device. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that if the embodiments of the present invention involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0029] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0030] See Figure 1 and Figure 2 .

[0031] The present invention provides an automatic strength testing device for large-area concrete structures, comprising a wall-climbing robot 1 for crawling on the concrete surface and a rebound hammer 2 for testing concrete strength, and further comprising a moving mechanism 3 for controlling the rebound hammer 2 to find the testing point. The rebound hammer 2 is mounted on the moving mechanism 3, and the moving mechanism 3 is mounted on the wall-climbing robot 1.

[0032] The present invention provides an automatic strength testing device for large-area concrete structures, comprising a wall-climbing robot 1, a rebound hammer 2, and a moving mechanism 3. The wall-climbing robot 1 can climb on the concrete surface and, after climbing to a designated testing position, performs a rebound test using the onboard rebound hammer 2 to obtain data for that testing position. The self-climbing feature of the wall-climbing robot 1 allows it to climb to different testing positions, eliminating the need for scaffolding or other auxiliary work platforms for high-altitude operations during manual testing. This ensures worker safety and improves testing efficiency. The moving mechanism 3 complements the requirement of at least 16 testing points in each testing area for rebound testing. By moving the rebound hammer 2 to different testing points using the moving mechanism 3, the efficiency of the testing is further improved.

[0033] In this invention, the wall-climbing robot 1 has an image recognition module, an intelligent control system, a data storage module, and a data transmission module, which are commonly used in the field. The image recognition module identifies the position of the component to be detected. The intelligent control system drives the wall-climbing robot 1 to automatically plan a route to the vicinity of the test point on the component to be detected based on the information captured by the image recognition module. The system also controls the moving mechanism 3 to bring the rebound tester 2 to the designated test point for rebound testing. The storage module is used to store the test data of different test points at different test locations. The data transmission module is used to transmit the measured data so that on-site personnel can observe the data.

[0034] In one embodiment, see Figure 1 and Figure 2 The mounting structure of the wall-climbing robot 1 includes at least two connecting strips 101, two mounting shells 102, and four support legs 103. The two connecting strips 101 are arranged in parallel, with one connecting strip 101 connected to one side of each of the two mounting shells 102 on both sides, and the other connecting strip 101 connected to the other side of each of the two mounting shells 102 on both sides. The four support legs 103 are arranged in pairs on the two mounting shells 102. The moving mechanism 3 is mounted on the two connecting strips 101. In this embodiment, the moving mechanism 3 is mounted on the two connecting strips 101, the rebound device 2 is mounted between the two connecting strips 101, and the support legs 103 adopt a suction cup leg structure, a technology known in the field of wall-climbing robots. This design places the four support legs 103 on the outer periphery of the rebound device 2, thereby enhancing the stability of the entire device when the rebound device 2 performs rebound detection.

[0035] In one embodiment, see Figure 1 and Figure 2 The moving mechanism 3 includes a first motion component 301 and a second motion component 302. The first motion component 301 is disposed on the two mounting shells 102, and the second motion component 302 is disposed on the two connecting strips 101, with the first motion component 301 and the second motion component 302 in sliding engagement. This design, by using the first motion component 301 and the second motion component 302 to move the rebound spring 2, can meet the positional requirements of at least 16 detection points for rebound detection.

[0036] In one embodiment, see Figure 1 and Figure 2 The first motion component 301 includes a support member 3011 and two sliders 3012. The two sliders 3012 are respectively disposed on the two mounting shells 102. The support member 3011 is arranged parallel to the connecting strip 101, and both sides of the support member 3011 are slidably connected to the two sliders 3012. The support member 3011 can reciprocate linearly between the two mounting shells 102. The rebound spring 2 is disposed on the support member 3011. In this embodiment, the reciprocating linear motion of the support member 3011 is realized by a linear actuator. This design allows the rebound spring 2 to move laterally through the reciprocating linear motion of the support member 3011.

[0037] In one embodiment, see Figure 1 and Figure 2 The support member 3011 includes a sleeve 3013, a cylinder 3014, and two slide bars 3015. One end of each slide bar 3015 is slidably connected to one of the two sliders 3012, and the other end is slidably connected to the outer wall of the sleeve 3013. The fixed end of the cylinder 3014 is mounted on one of the slide bars 3015, and the output end is connected to the sleeve 3013. The rebound spring 2 is fixed inside the sleeve 3013, and the output end of the rebound spring 2 is located at the bottom of the support member 3011. This design allows the cylinder 3014 to operate the sleeve 3013, moving it closer to and away from the detection point, thereby achieving the rebound detection of the rebound spring 2.

[0038] In one embodiment, see Figure 1 and Figure 2The second motion component 302 includes two receiving strips 3021 and two fittings 3022. The two receiving strips 3021 are arranged in parallel, with one end of each strip connected to both sides of one connecting strip 101 and the other end connected to both sides of the other connecting strip 101. The two fittings 3022 are slidably sleeved on both sides of the support member 3011, and can reciprocate linearly on the two receiving strips 3021 respectively. The two sliders 3012 can slide on their respective mounting shells 102. In this embodiment, the two fittings 3022 are respectively sleeved on the two sliders 3015. This design ensures that the movement of the first motion component 301 is not affected, while allowing the rebound meter 2 to move longitudinally, satisfying the requirement of at least 16 detection points for rebound detection.

[0039] In one embodiment, see Figure 1 and Figure 2 The wall-climbing robot 1 is also equipped with a lighting device 4 on its connecting bar 101. This design facilitates the wall-climbing robot 1 to work at night or in dark environments.

[0040] See Figures 3 to 5 .

[0041] This invention provides an automatic method for detecting the strength of large-area concrete structures, including an automatic detection device for the strength of large-area concrete structures, comprising the following steps:

[0042] S1. Prepare multiple marker stickers with QR codes and color blocks. In this step, the color blocks of different marker stickers are different and are significantly different from the surrounding environment. The QR codes of different marker stickers contain the color information of the corresponding component, the number information of the corresponding component, and the sampling point information of the corresponding component.

[0043] S2. After the concrete formwork is removed, multiple marker stickers are affixed to the corresponding surfaces of the components to be inspected. In this step, the marker stickers are affixed to the designated locations on the concrete component surface according to their numbers. Figure 4 The center circle indicates where the marker sticker should be placed.

[0044] S3. Complete the curing of the concrete. In this step, the curing work ensures that the surface of the concrete is flat, making it easy for the wall-climbing robot 1 to walk.

[0045] S4. Input the information of the component to be tested into the wall-climbing robot 1, and dispatch the wall-climbing robot 1 to perform the test; In this step, input the information of the order of the components to be tested, the number of components to be tested, and the color of the identification color block corresponding to each component to be tested into the wall-climbing robot 1.

[0046] S5. The wall-climbing robot 1 identifies the color block of the marker sticker on the component, moves to its vicinity, reads the color code of the marker color block, and then reads the color information in the QR code on the marker sticker. It compares and judges whether the identified marker color block is correct. If the identification is correct, it records the component number and measurement point number in the QR code, continues to find the sampling point on the marker sticker for a rebound test, and records the result. After the test is completed, it finds the next measurement point. If the identification is incorrect, it finds the next marker sticker for judgment. In this step, the wall-climbing robot 1 identifies the color block of the marker sticker on the component through the image recognition module. When reading the color code of the marker color block, it converts the color information of the color block into a hexadecimal color code, then reads the information in the QR code, compares it with the converted color code to judge whether the identified position is correct. If correct, it controls the moving mechanism 3 and the rebound instrument 2 through the intelligent control system to perform a rebound test, and records the result through the data storage module.

[0047] S6. After completing the rebound test of all sampling points on a component, save the data to the wall-climbing robot 1 and start searching for the next component to be tested. In this step, the data is stored in the data storage module of the wall-climbing robot 1. During the data storage process, the intelligent control system can determine whether the measurement of all components has been completed according to the preset information, and start the measurement of the next component as appropriate. Searching for the next component to be tested and performing the rebound test is to repeat step S5.

[0048] S7. Repeat S5 and S6 until all components have been inspected.

[0049] It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the invention. Those skilled in the art can make various modifications or changes based on them. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. An automatic method for detecting the strength of large-area concrete structures, characterized in that, An automatic strength testing device for large-area concrete structures is adopted. The device includes a wall-climbing robot (1) for crawling on the concrete surface and a rebound hammer (2) for testing concrete strength. It also includes a moving mechanism (3) for controlling the rebound hammer (2) to find the testing point. The rebound hammer (2) is mounted on the moving mechanism (3), and the moving mechanism (3) is mounted on the wall-climbing robot (1). The steps are as follows: S1. Prepare several marker stickers with QR codes and color blocks; S2. After the concrete formwork is removed, multiple marker stickers are affixed to the corresponding component surfaces to be inspected. S3. Complete the curing of the concrete; S4. Input the information of the component to be tested into the wall-climbing robot (1) and send out the wall-climbing robot (1) to perform the test; S5. The wall-climbing robot (1) identifies the color block of the marker sticker on the component, moves to its vicinity to read the color code of the marker color block, and then reads the color information in the QR code on the marker sticker. It compares and judges whether the found marker color block is correct. If the search is correct, it records the component number and measurement point number in the QR code, continues to search for the sampling point on the marker sticker to perform a rebound test, and records the result. After the test is completed, it searches for the next measurement point. If the search is incorrect, it searches for the next marker sticker to make a judgment. S6. After completing the rebound test of all sampling points on a component, save the data to the wall-climbing robot (1) and start searching for the next component to be tested; S7. Repeat S5 and S6 until all components have been inspected.

2. The automatic strength detection method for large-area concrete structures according to claim 1, characterized in that, The installation structure of the wall-climbing robot (1) includes at least two connecting strips (101), two mounting shells (102), and four support legs (103). The two connecting strips (101) are arranged in parallel, and the two sides of one connecting strip (101) are respectively connected to one side of the two mounting shells (102), and the two sides of the other connecting strip (101) are respectively connected to the other side of the two mounting shells (102). The four support legs (103) are arranged in pairs on the two mounting shells (102), and the moving mechanism (3) is arranged on the two connecting strips (101).

3. The automatic strength detection method for large-area concrete structures according to claim 2, characterized in that, The moving mechanism (3) includes a first motion component (301) and a second motion component (302). The first motion component (301) is disposed on the two mounting shells (102), and the second motion component (302) is disposed on the two connecting strips (101). The first motion component (301) and the second motion component (302) are in sliding engagement.

4. The automatic strength detection method for large-area concrete structures according to claim 3, characterized in that, The first motion component (301) includes a support member (3011) and two sliders (3012). The two sliders (3012) are respectively disposed on the two mounting shells (102). The support member (3011) is arranged parallel to the connecting strip (101), and the two sides of the support member (3011) are slidably connected to the two sliders (3012). The support member (3011) can reciprocate linearly between the two mounting shells (102). The rebound device (2) is disposed on the support member (3011).

5. The automatic strength detection method for large-area concrete structures according to claim 4, characterized in that, The support member (3011) includes a sleeve (3013), a cylinder (3014) and two slide bars (3015). One end of each slide bar (3015) is slidably connected to the two sliders (3012), and the other end is slidably connected to the outer wall of the sleeve (3013). The fixed end of the cylinder (3014) is mounted on one of the slide bars (3015), and the output end is connected to the sleeve (3013). The rebound spring (2) is fixed inside the sleeve (3013), and the output end of the rebound spring (2) is located at the bottom of the support member (3011).

6. The automatic strength detection method for large-area concrete structures according to claim 4, characterized in that, The second motion component (302) includes two support strips (3021) and two kits (3022). The two support strips (3021) are arranged in parallel, and one end of each support strip (3021) is connected to both sides of one connecting strip (101), and the other end is connected to both sides of the other connecting strip (101). The two kits (3022) are slidably sleeved on both sides of the support member (3011), and the two kits (3022) can reciprocate linearly on the two support strips (3021), and the two sliders (3012) can slide on the corresponding mounting shells (102).

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