A detection system and detection method for a building support structure

Abstract

The present invention provides a detection system and a detection method for a building support structure, including a position adjustment device and a detection device; wherein, the position adjustment device is connected to the detection device through a flexible transmission member, and is used to adjust the height position of the detection device to achieve partial or overall detection of the building support structure; the detection device includes a visual detection module, an ultrasonic detection module and at least one ground penetrating radar detection module; the visual detection module and the ultrasonic detection module are configured to maintain a distance from the wall surface to be measured of the building support structure during the detection process, and are used to identify and scan the surface defects of the building support structure; at least one ground penetrating radar detection module is configured to be in contact with the wall surface to be measured of the building support structure during the detection process, and is used to detect the internal defects of the building support structure. The present invention can not only detect the surface defects of the building support structure, but also detect the internal defects of the building support structure, while ensuring that the detection system has a high accuracy rate.

Description

Technical Field

[0001] The present invention relates to the technical field of building bridge detection, and particularly to a detection system and a detection method for a building support structure. Background Art

[0002] In the structures of bridges and viaducts, bridge piers are the parts that support the bridge span structure and transmit the dead load and vehicle live load to the foundation. The quality of bridge piers has a great impact on the service life of the bridge body.

[0003] In the actual construction process of bridge piers, due to poor operations such as uneven pouring and improper concrete mixing ratio, and the long-term influence of climate and natural environment after being put into use, defects such as exposed reinforcement, honeycombing and pitting, and cracks will appear in the bridge piers. The most common type of defect is cracks, which are generally divided into through cracks, deep cracks and surface cracks. Once the defects cannot be detected and processed in time, it will greatly affect the safety performance and service conditions of the bridge.

[0004] Therefore, it is necessary to arrange staff to carry out periodic inspection operations on the building structures that play a supporting role. Visual inspection is the most common method for bridge defect detection and is also the simplest and most direct method. The inspectors observe the cracks, corrosion, etc. on the surface of the building structure with the naked eye. With the development of technology, a detection system combining a visual camera and an intelligent recognition system can quickly detect the surface of the building support structure, reduce the danger of the operation and improve the operation efficiency. However, the existing building support structure detection systems have poor detection effects for deep, hidden or situations that require fine detection, especially for defects of the deep crack type, and cannot be effectively identified. At the same time, there is also the problem of misjudgment of the detection system caused by the detection environment.

[0005] Therefore, a detection system and a detection method for a building support structure are needed, which can not only efficiently inspect the defects on the surface of the building support structure, but also identify and detect various defects inside the building support structure, and at the same time ensure that the detection system has a high detection accuracy. Summary of the Invention

[0006] In view of this, embodiments of the present invention provide a detection system and a detection method for a building support structure to eliminate or improve one or more defects existing in the prior art.

[0007] One aspect of the present invention provides a detection system for a building support structure, and the detection system includes a position adjustment device and a detection device;

[0008] Wherein, the position adjustment device is connected to the detection device through a flexible transmission member, and is used to adjust the height position of the detection device to realize partial or overall detection of the building support structure;

[0009] The detection device includes a vision detection module, an ultrasonic detection module, and at least one ground penetrating radar detection module;

[0010] The vision detection module and the ultrasonic detection module are configured to maintain a distance from the wall surface to be measured of the building support structure during the detection process, and are used to identify and scan the surface defects of the wall surface to be measured of the building support structure;

[0011] The at least one ground penetrating radar detection module is configured to be in contact with the wall surface to be measured of the building support structure during the detection process, and is used to detect internal defects of the building support structure.

[0012] In some embodiments of the present invention, the detection device further includes a main body structure and at least one telescopic mechanism. The vision detection module and the ultrasonic detection module are installed on the main body structure. The ground penetrating radar detection module is connected to the main body structure through the telescopic mechanism, and the number of the telescopic mechanism and the ground penetrating radar detection module corresponds.

[0013] In some embodiments of the present invention, the ground penetrating radar detection module includes a ground penetrating radar sensor and a sliding body;

[0014] The ground penetrating radar sensor is arranged on a side of the sliding body away from the main body structure of the detection device, and is used to detect defects inside the building support structure.

[0015] In some embodiments of the present invention, the ground penetrating radar detection module further includes a pushing piece. The pushing piece is arranged on a side of the ground penetrating radar sensor away from the sliding body. One end of the pushing piece is fixedly connected to the ground penetrating radar sensor, and the other end is used to contact the inner surface of the building support structure;

[0016] During the movement of the sliding body, the pushing piece is elastic and can deform with the surface of the building support structure, so that the ground penetrating radar detection module always remains in contact with the surface of the building support structure; and / or

[0017] The ground penetrating radar sensor includes an electromagnetic wave transmitter and an electromagnetic wave receiver.

[0018] In some embodiments of the present invention, a rotating shaft is arranged at the connection part between the sliding body and the telescopic mechanism. In a state where the sliding body abuts against the wall surface to be measured of the building support structure, the vertical angle of the sliding body changes with the inclination angle of the surface of the building support structure, and the rotation angle range of the rotating shaft is 0° to 30°.

[0019] In some embodiments of the present invention, the sliding body includes at least three sliding wheels, which are arranged on the side of the sliding body away from the main structure of the detection device and are rotatably connected to the sliding body;

[0020] The rotation axis direction of the sliding wheel is arranged perpendicular to the movement direction of the sliding body, so that the sliding body can slide smoothly along the surface of the building support structure.

[0021] In some embodiments of the present invention, the telescopic mechanism includes a pressure sensor and a push rod;

[0022] One end of the push rod is vertically connected to the side of the main structure, and the other end is connected to the geological radar detection module. The push rod can automatically extend or shorten along its length direction to adjust the lateral distance between the sliding body and the surface of the building support structure;

[0023] The pressure sensor is arranged on a side of the geological radar detection module away from the push rod, and is used to detect the pressure between the geological radar detection module and the surface of the building support structure;

[0024] During the movement of the sliding body, the push rod cooperates with the pressure sensor. The push rod continuously adjusts the length of the push rod based on the actual pressure data received from the pressure sensor, so that the sliding body can always rest against the surface of the building support structure and provide the set pressure.

[0025] In some embodiments of the present invention, the visual detection module includes a camera, and the camera protrudes from the bottom surface of the detection device;

[0026] The ultrasonic detection module includes an ultrasonic transmitter and an ultrasonic receiver. The ultrasonic detection module is arranged on the side of the bottom of the main structure. The side of the bottom of the main structure has at least one inclined surface bent toward the center of the main structure to serve as the installation plane of the ultrasonic detection module, so that the scanning direction of the ultrasonic detection module has an inclined angle in the vertical direction.

[0027] In some embodiments of the present invention, the position adjustment device includes a driving mechanism, a support rod and a roller;

[0028] The driving mechanism is arranged on the body of the position adjustment device to control the retraction and extension of the flexible transmission member, so as to adjust the longitudinal position of the detection device;

[0029] The support rod is transversely arranged on the side of the position adjustment device, and the support rod can be extended and retracted along its length direction to adjust the transverse position of the detection device;

[0030] One end of the support rod is fixedly connected to the side surface of the position adjustment device, and the other end is rotatably connected to a roller. The roller is used for horizontally supporting the flexible transmission member.

[0031] In some embodiments of the present invention, the flexible transmission member is a rectangular or sheet-shaped belt, which is used to prevent the detection device from rotating during the lifting process.

[0032] In some embodiments of the present invention, at least two flexible transmission members are provided and are respectively connected to different positions of the detection device, and the flexible transmission members are parallel to each other, which is used to prevent the detection device from rotating during the lifting process.

[0033] Another aspect of the present invention provides a detection method for a detection system of a building support structure. The detection method detects the building support structure during any process of the rise or fall of the detection system. The steps of detecting the building support structure during the fall process of the detection system include:

[0034] S10: Control the support rod of the position adjustment device to extend along its length direction, so that the detection device connected to the flexible transmission member reaches a predetermined detection position;

[0035] S20: Control the push rod of the detection device to extend along its length direction, so that the sliding body of the ground penetrating radar detection module contacts the surface to be detected of the building support structure;

[0036] S30: Control the winding and unwinding speed of the flexible transmission member, so that the ground penetrating radar detection module of the detection device moves along the surface of the building support structure at a set speed to identify and detect internal defects of the support structure, and make the visual detection module and the ultrasonic detection module of the detection device move along the vertical direction at a set speed to scan and detect surface defects of the support structure;

[0037] S40: During the working process of the ground penetrating radar detection module, based on the real-time pressure detected by the pressure sensor, control the length of the push rod, so that the sliding body always abuts against the inner wall of the building support structure and maintains a set pressure;

[0038] S50: After the visual detection module and / or the ultrasonic detection module recognize that the detection device reaches the bottom of the building support structure, control the flexible transmission member of the position adjustment device to stop lowering;

[0039] S60: Control the push rod of the detection device to contract, and the position adjustment device drives the flexible transmission member to retract upward, so that the detection device rises to the initial height, and the detection operation of the current building support structure is completed.

[0040] The detection system and method for the building support structure of the present invention can not only efficiently inspect the defects on the surface of the building support structure, but also identify and detect various defects inside the building support structure, while ensuring that the detection results of the detection system have a high accuracy rate.

[0041] Additional advantages, objects, and features of the present invention will be partially described below, and will become partially apparent to those of ordinary skill in the art after studying the following, or may be learned from the practice of the present invention. The objects and other advantages of the present invention can be realized and obtained by the structure specifically pointed out in the specification and the drawings.

[0042] Those skilled in the art will understand that the objects and advantages that can be achieved by the present invention are not limited to the above specifically described, and the above and other objects that the present invention can achieve will be more clearly understood according to the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The drawings described herein are used to provide a further understanding of the present invention, form a part of this application, and do not limit the present invention. The components in the drawings are not drawn to scale, but are only for showing the principles of the present invention. For the convenience of showing and describing some parts of the present invention, the corresponding parts in the drawings may be enlarged, that is, may become larger relative to other components in the exemplary device actually manufactured according to the present invention.

[0044] Figure 1 It is the front view of the detection system for the building support structure in an embodiment of the present invention.

[0045] Figure 2 For Figure 1 It is the partial enlarged view of area A in

[0046] Figure 3 It is the top view of the detection system for detecting a hollow pier in an embodiment of the present invention.

[0047] Figure 4 It is the side view of the detection system for detecting a pile-column pier in an embodiment of the present invention.

[0048] Figure 5 It is the front view of the ground penetrating radar detection module in an embodiment of the present invention.

[0049] Figure 6 For Figure 5 It is the partial enlarged view of area B in

[0050] Figure 7 It is the right view of the ground penetrating radar detection module in an embodiment of the present invention.

[0051] Figure 8This is the flowchart of the detection method of the building support structure detection system in an embodiment of the present invention.

[0052] Reference numerals:

[0053] 1. Position adjustment device; 11. Flexible transmission member; 12. Support rod; 13. Roller; 14. Driving mechanism;

[0054] 2. Detection device; 21. Main body structure; 22. Visual detection module; 23. Ultrasonic detection module; 23-A. Ultrasonic transmitter; 23-B. Ultrasonic receiver; 24. Telescopic mechanism; 241. Pressure sensor; 242. Push rod; 25. Ground penetrating radar detection module; 251. Sliding body; 251-A. Sliding wheel; 252. Rotating shaft; 253. Pushing piece; 254. Ground penetrating radar sensor; 254-A. Electromagnetic wave transmitter; 254-B. Electromagnetic wave receiver;

[0055] K. Building support structure. Detailed implementation manners

[0056] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in combination with the implementation manners and the drawings. Herein, the illustrative implementation manners of the present invention and their descriptions are used to explain the present invention, but do not limit the present invention.

[0057] Herein, it should also be noted that in order to avoid obscuring the present invention due to unnecessary details, only the structures and / or processing steps closely related to the solution of the present invention are shown in the drawings, while other details less related to the present invention are omitted.

[0058] It should be emphasized that the term "including / comprising" when used herein refers to the presence of features, elements, steps or components, but does not exclude the presence or addition of one or more other features, elements, steps or components.

[0059] Herein, it should also be noted that if not otherwise specified, the term "connection" in this article can not only refer to direct connection, but also represent indirect connection with an intermediate object.

[0060] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same reference numerals represent the same or similar components, or the same or similar steps.

[0061] To solve or improve the problem that the existing building support structure detection system has poor measurement effects for deep, concealed or finely-detected scenarios, especially cannot accurately identify defects of the deep crack type, and is prone to misjudgment of the detection system due to environmental influence, the present invention provides a detection system and a detection method for a building support structure. Using this detection system and detection method can not only efficiently detect defects on the surface of the building support structure K, but also identify and detect various defects inside the building support structure K, while ensuring that the detection results of the detection system have a high accuracy rate.

[0062] In some embodiments, as Figure 1 shown, the detection system includes a position adjustment device 1 and a detection device 2.

[0063] Among them, the position adjustment device 1 is connected to the detection device 2 through a flexible transmission member 11, and is used to adjust the height position of the detection device 2 to realize local or overall detection of the building support structure K.

[0064] The detection device 2 includes a visual detection module 22, an ultrasonic detection module 23 and at least one ground penetrating radar detection module 25.

[0065] The visual detection module 22 and the ultrasonic detection module 23 are configured to maintain a distance from the wall surface to be measured of the building support structure K during the detection process, and are used to identify and scan surface defects of the wall surface to be measured of the building support structure K.

[0066] The at least one ground penetrating radar detection module 25 is configured to be in contact with the wall surface to be measured of the building support structure K during the detection process, and is used to detect internal defects of the building support structure K.

[0067] In the above embodiments, the detection system can not only detect defects on the surface of the building support structure K, but also identify and detect various defects inside the building support structure K, while ensuring that the detection results of the detection system have a high accuracy rate. This detection system for a building support structure integrates multiple detection technologies, including vision, ultrasonic and ground penetrating radar detection, can comprehensively detect the surface and inside of the building support structure K at the same time, can realize a comprehensive assessment of the safety of the building structure, and is of great significance for improving the building safety management level. The design of the position adjustment device 1 enables the detection device 2 to flexibly adjust its position to adapt to different detection environments and requirements. Multiple modules operate simultaneously, which can greatly improve the detection efficiency and shorten the detection cycle.

[0068] Compared with using only one of the visual detection scheme or the ultrasonic detection scheme, this detection system combines the two detection schemes. The visual detection module 22 and the ultrasonic detection module 23 are set to simultaneously scan and identify the defects on the surface of the building support structure K. The detection system compares the two detection results with each other. When the two detection results are the same, the system can directly output the detection result; when the two detection results are different, the system performs a re-inspection operation. This detection system improves the accuracy of defect detection of the building support structure K in different environments, and avoids the problem of misjudgment in visual detection due to light changes and the problem of misjudgment in ultrasonic detection due to temperature changes. At the same time, this detection system is provided with a ground penetrating radar detection module 25 that can identify and detect defects that are not easily found inside the building support structure K.

[0069] This detection system is applicable to the safety detection of various building support structures such as bridges, tunnels, and buildings, and is especially suitable for old buildings and important public facilities that require regular safety assessment. Through this system, structural defects can be discovered in a timely manner, providing a scientific basis for maintenance and reinforcement, and greatly improving the building safety.

[0070] As at least one implementable manner, the position adjustment device 1 is connected to the detection device 2 through a flexible transmission member 11, and can accurately control the height and position of the detection device 2, so that it can be flexibly adjusted to different parts of the building support structure K for detection. This design improves the flexibility and applicability of detection. The position adjustment device 1 is applicable to detecting the building support structure K above it. In other embodiments, the position adjustment device 1 can also use other structures, such as devices similar to lift tables and lift arms, and can detect the building support structure K below it.

[0071] As at least one implementable manner, the visual detection module 22 can use a high-definition camera or a similar visual sensor to capture images of the surface of the building support structure K, and analyze these images through image processing technology to identify surface defects such as cracks, peeling, and water seepage. This method is intuitive and effective, but it depends on the lighting conditions. The visual detection module 22 can also be configured with a corresponding illuminating lamp for supplementary lighting.

[0072] As at least one implementable manner, the ground penetrating radar detection module 25 is configured to maintain an appropriate contact or spacing with the wall surface to be measured of the building support structure K during the detection process, and is mainly used to detect the defects inside the building support structure K. This method can effectively detect defects such as peeling, cracks, and cavities on the wall surface to be measured of the building support structure K, which is crucial for evaluating the integrity and safety of the building support structure K.

[0073] In some embodiments, the detection device 2 further includes a main body structure 21 and at least one telescopic mechanism 24. The visual detection module 22 and the ultrasonic detection module 23 are installed on the main body structure 21, and the ground penetrating radar detection module 25 is connected to the main body structure 21 through the telescopic mechanism 24, and the number of the telescopic mechanism 24 corresponds to that of the ground penetrating radar detection module 25.

[0074] As at least one implementable manner, two telescopic mechanisms 24 are provided for the detection device 2, and two ground penetrating radar detection modules 25 are also provided. The two telescopic mechanisms 24 are symmetrically installed in a "one" character configuration, so that the overall structure of the detection system remains balanced during the working process.

[0075] As at least one implementable manner, four telescopic mechanisms 24 are provided for the detection device 2, and four ground penetrating radar detection modules 25 are also provided. As Figure 3 described, the four telescopic mechanisms 24 are symmetrically installed in a "cross" character configuration. The detection system can simultaneously detect internal defects at four positions of the building support structure K, and the acting forces of the opposite two groups of telescopic mechanisms 24 are balanced with each other, so that the detection system is maintained at the middle position of the building support structure K.

[0076] In the case where the building support structure K is a hollow pier, as Figure 3 shown, the detection system is arranged inside the hollow chamber of the hollow pier. The main body structure of the detection device moves up and down, so that the visual detection module and the ultrasonic detection module perform an overall detection scan on the inner wall surface of the hollow pier. The ground penetrating radar detection module contacts the inner wall of the hollow pier and is used to detect and identify deep defects in the hollow pier structure.

[0077] In the case where the building support structure K is a pile-column pier, as Figure 4 shown, the detection system is arranged on the side outside the pile-column pier. The main body structure of the detection device moves up and down on the side of the pile-column pier, so that the visual detection module and the ultrasonic detection module perform a detection scan on the outer surface of the pile-column pier. The ground penetrating radar detection module contacts the outer wall of the pile-column pier and is used to detect and identify defects in the internal structure of the pile-column pier.

[0078] In some embodiments, the ground penetrating radar detection module 25 includes a ground penetrating radar sensor 254 and a sliding body 251; the ground penetrating radar sensor 254 is arranged on the side of the sliding body 251 away from the main body structure 21 of the detection device 2 and is used to detect defects inside the building support structure K.

[0079] Further, the ground penetrating radar sensor 254 includes an electromagnetic wave transmitter 254-A and an electromagnetic wave receiver 254-B.

[0080] In some embodiments, asFigure 5 and Figure 6 As shown in Figure 6 , the ground penetrating radar detection module 25 further includes a pushing piece 253. The pushing piece 253 is arranged on a side of the ground penetrating radar sensor 254 away from the sliding body 251. One end of the pushing piece 253 is fixedly connected to the ground penetrating radar sensor 254, and the other end is used for contacting the inner surface of the building support structure K.

[0081] During the movement of the sliding body 251, the pushing piece 253 is elastic and can deform along with the surface of the building support structure K, so that the ground penetrating radar detection module 25 always keeps in contact with the surface of the building support structure K.

[0082] The pushing piece 253 is a thin sheet structure with elasticity, including an installation part and a pushing part. The installation part is used for installing the pushing piece 253 on the outer shell of the ground penetrating radar sensor 254, and the pushing part is used for contacting the surface of the building support structure K and deforming.

[0083] As at least one implementable way, the pushing part has a two-segment bending structure, including a contact part and an inclined part. The contact part is parallel to and contacts the surface of the building support structure K, and the inclined part is bent to connect the installation part and the contact part, and its inclination angle changes continuously with the contact plane.

[0084] As at least one implementable way, the pushing part has an arc-shaped structure, one end of which is connected to the installation part, and the outer arc surface of the other end contacts the surface of the building support structure K, and the bending form of the arc-shaped structure changes continuously with the contact plane.

[0085] In the above two implementable ways, the pushing piece 253 is set to have a two-segment bending structure, which has a larger contact area with the contact plane and can improve the stability of the pushing piece 253; while the pushing piece 253 set to have an arc-shaped structure is more sensitive to the change of the contact plane and can improve the shock absorption effect of the pushing piece 253.

[0086] The structure of the pushing piece 253 is elastic and can deform along with the surface of the support structure, so that it has good followability. It can not only prevent foreign objects from colliding and protect the ground penetrating radar sensor 254, but also reduce the vibration during the movement of the sliding body 251 and improve the detection effect of the ground penetrating radar. The pushing piece 253 and the outer shell of the ground penetrating radar sensor 254 are installed by screwing or pinning, and the detachable design facilitates the rapid replacement of the pushing piece 253 after wear.

[0087] In some embodiments, a rotating shaft 252 is provided at the connection part between the sliding body 251 and the telescopic mechanism 24. In a state where the sliding body 251 abuts against the surface of the building support structure K, the vertical angle of the sliding body 251 changes with the inclination angle of the surface of the building support structure K, and the rotation angle range of the rotating shaft 252 is 0° to 30°, so that the ground penetrating radar detection module 25 remains parallel to the wall surface to be measured of the building support structure K during movement, ensuring the detection effect and adapting to different types of building support structures.

[0088] Wherein, the rotating shaft 252 has rotational damping, and the sliding body 251 and the telescopic mechanism 24 are perpendicular or approximately perpendicular to each other without external force.

[0089] In some embodiments, the sliding body 251 includes at least three sliding wheels 251-A, and the sliding wheels 251-A are arranged on the side surface of the sliding body 251 away from the detection device 2 and are rotatably connected to the sliding body 251; the rotation axis direction of the sliding wheels 251-A is perpendicular to the movement direction of the sliding body 251, so that the sliding body 251 can slide smoothly along the surface of the building support structure K.

[0090] As at least one implementable manner, the sliding body 251 is provided with four sliding wheels 251-A. As Figure 7 shown, two of the four sliding wheels 251-A are in a group and are respectively arranged on the left and right side surfaces of the sliding body 251, and the ground penetrating radar sensor 254 and the pushing piece 253 are arranged at the middle position of the sliding body 251, so that the four sliding wheels 251-A can stably support the sliding body 251 and keep the ground penetrating radar sensor 254 parallel to the surface of the building support structure during movement.

[0091] Furthermore, the size of the sliding wheel 251-A is configured such that the protruding length of the sliding wheel 251-A on the right side surface of the sliding body 251 is greater than the protruding length of the ground penetrating radar sensor 254, preventing the ground penetrating radar sensor 254 from directly colliding with and wearing the wall surface to be measured of the support structure.

[0092] In some embodiments, the telescopic mechanism 24 includes a pressure sensor 241 and a push rod 242; one end of the push rod 242 is vertically connected to the side of the main structure 21, and the other end is connected to the geological radar detection module 25. The push rod 242 can automatically extend or shorten along its length direction to adjust the lateral distance between the sliding body 251 and the surface of the building support structure K; the pressure sensor 241 is arranged on the side of the geological radar detection module 25 away from the push rod 242, and is used to detect the pressure between the geological radar detection module 25 and the surface of the building support structure K. The sensing head of the pressure sensor 241 contacts the deformed end of the push plate 253, and detects the pressure of the sliding body 251 on the surface of the building support structure K by detecting the pressure on the push plate 253.

[0093] During the movement of the sliding body 251, the push rod 242 cooperates with the pressure sensor 241. The push rod 242 receives actual pressure data from the pressure sensor 241 and continuously adjusts the length of the push rod 242, so that the sliding body 251 can always rest against the surface of the building support structure K and provide the set pressure.

[0094] Among them, the pressure sensor 241 sets the upper and lower limits of pressure, which can be set to 5N~10N. The push rod 242 and the pressure sensor 241 are linked in the following way: when the pressure detection value is less than the lower pressure limit, the push rod 242 extends; when the pressure detection value is greater than the upper pressure limit, the push rod 242 shortens.

[0095] In some embodiments, the visual detection module 22 includes a camera, which protrudes from the bottom surface of the detection device 2. The camera uses a wide-angle lens to expand the camera's shooting range and improve detection efficiency. Installing a lighting source around the camera allows detection operations to be performed in scenes with poor lighting conditions.

[0096] The ultrasonic detection module 23 includes an ultrasonic transmitter 23-A and an ultrasonic receiver 23-B. The ultrasonic detection module 23 is arranged on the side of the bottom of the main structure. The side of the bottom of the main structure 21 has at least one inclined surface bent toward the center of the main structure as the installation plane of the ultrasonic detection module 23, so that the scanning direction of the ultrasonic detection module 23 has an inclined angle in the vertical direction. The ultrasonic detection module 23 is tilted to prevent the geological radar detection module 25 from overlapping with the ultrasonic scanning area, thereby affecting the detection result of the ultrasonic detection module 23.

[0097] In some embodiments, the position adjustment device 1 includes a driving mechanism 14, a support rod 12, and a roller 13. The driving mechanism 14 is disposed on the body of the position adjustment device 1 to control the retraction and extension of the flexible transmission member 11, and is used to adjust the longitudinal position of the detection device 2. The support rod 12 is horizontally disposed on the side of the position adjustment device 1, and the support rod 12 can be telescoped along its length direction to adjust the lateral position of the detection device 2.

[0098] One end of the support rod 12 is fixedly connected to the side of the position adjustment device 1, and the other end is rotatably connected to the roller 13. The roller 13 is used to horizontally support the flexible transmission member 11.

[0099] In some embodiments, the flexible transmission member 11 can be a belt, a steel sheet cable, a chain, etc., and is used to prevent the detection device 2 from rotating during the lifting process. Taking a rectangular or sheet-shaped belt as an example, the cross-section of the connection between it and the detection device 2 is rectangular. When the detection device 2 rotates and drives the shape of the flexible transmission member 11 to twist, a corresponding reverse force is generated inside the belt to keep its original shape, thereby reducing the rotation angle of the detection device 2 connected to the belt.

[0100] In some embodiments, at least two flexible transmission members 11 are provided and are respectively connected to different positions of the detection device 2, and the flexible transmission members 11 are parallel to each other to prevent the detection device 2 from rotating during the lifting process.

[0101] Among them, taking the example of setting two flexible transmission members 11, which are respectively connected to different lateral positions of the detection device 2. When the detection device 2 rotates without changing the length of the flexible transmission member 11, the flexible transmission member 11 tilts and twists towards the central axis of the two connection positions. The gravity of the detection device 2 causes the two flexible transmission members 11 to have reverse torsional forces to prevent the detection device 2 from rotating during the movement.

[0102] Furthermore, corresponding length marks are set on the flexible transmission member 11 at fixed intervals to facilitate quickly obtaining the height information of the detection device 2.

[0103] The driving mechanism 14 of the position adjustment device 1 is linked with the visual detection module 22 and the ultrasonic detection module 23 during the movement. When any module in the visual detection module 22 or the ultrasonic detection module 23 recognizes that the detection device 2 reaches or is about to reach the bottom of the building support structure K, the driving mechanism 14 stops operating and the detection device 2 no longer descends, so as to prevent the detection device 2 from contacting and colliding with the bottom of the building support structure K or the ground, thereby damaging the relevant detection modules.

[0104] When using the detection system for the building support structure, execute as Figure 8The detection method of the building support structure in the illustrated embodiment. The detection method detects the building support structure K during any process of the rise or fall of the detection system. The steps of detecting the building support structure K during the fall process of the detection system include:

[0105] S10: Control the support rod 12 of the position adjustment device 1 to extend along its length direction, so that the detection device 2 connected to the flexible transmission member 11 reaches a predetermined detection position; the extension direction of the support rod 12 is parallel to the horizontal direction or has an inclination angle, which is used to adjust the lateral distance between the detection device 2 and the wall surface to be detected.

[0106] S20: Control the push rod 242 of the detection device 2 to extend along its length direction, so that the sliding body 251 of the ground penetrating radar detection module 25 contacts the wall surface to be detected of the building support structure K; the sliding body 251 is parallel to the contacting wall surface, so that the sliding body 251 can slide up and down along the contacting wall surface.

[0107] S30: Control the winding and unwinding speed of the flexible transmission member 11, so that the ground penetrating radar detection module 25 of the detection device 2 rises or falls along the wall surface of the building support structure K at a set speed, and the ground penetrating radar detection module 25 simultaneously identifies and detects internal defects of the building support structure K at the contact position; make the visual detection module 22 and the ultrasonic detection module 23 of the detection device 2 also rise or fall at a set speed, and simultaneously scan and detect surface defects of the support structure.

[0108] S40: During the working process of the ground penetrating radar detection module 25, based on the real-time pressure detected by the pressure sensor 241, control the length of the push rod 242, so that the sliding body 251 always abuts against the inner wall of the building support structure and maintains a set pressure;

[0109] S50: As long as any detection module in the visual detection module 22 or the ultrasonic detection module 23 identifies that the detection device 2 reaches or is about to reach the bottom of the building support structure K, control the flexible transmission member 11 of the position adjustment device 1 to stop lowering, and the detection device 2 no longer descends.

[0110] S60: Control the push rod 242 of the detection device 2 to contract, and the position adjustment device 1 drives the flexible transmission member 11 to retract, so that the detection device 2 rises to the initial height, and the detection operation of the current building support structure is completed.

[0111] According to a detection system and a detection method for a building support structure in an embodiment of the present invention, the technical effects that can be achieved at least include: (1) By setting the ground penetrating radar detection module 25, the detection system can detect and identify defects inside the building support structure K, improving the detection function of the detection system.

[0112] (2) The detection system is provided with a vision detection module 22 and an ultrasonic detection module 23, using two technical means to detect surface defects of the building support structure K simultaneously, reducing the adverse effects of the environment on the detection system and improving the detection accuracy of the detection system.

[0113] (3) In this detection system, the ultrasonic detection module 23 is inclined and arranged at the bottom side of the main structure 21, avoiding the interference between the scanning area of the ultrasonic detection module 23 and the sliding body 251.

[0114] (3) In this detection system, the main structure 21 and the sliding body 251 are connected by a telescopic push rod 242, which can adapt to the detection scenarios of building support structures with different shapes and sizes.

[0115] (5) In this detection system, a rotating shaft 252 is arranged at the connection position between the sliding body 251 and the push rod 242, enabling the detection system to adapt to the usage scenarios of building support structures with different inclination angles in the vertical direction.

[0116] (6) In this detection system, a pressure sensor 241 is set to be linked with the push rod 242 to ensure that the sliding body 251 and the wall surface to be measured of the building support structure K maintain stable contact during the movement of the detection system.

[0117] (7) In this detection system, the ground penetrating radar detection module 25 is provided with a push plate 253, which can not only keep the ground penetrating radar detection module 25 in contact with the building support structure K, but also protect the ground penetrating radar sensor 254 from being damaged during use.

[0118] It should be clear that the present invention is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, the detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present invention is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications, and additions, or change the order between steps after understanding the spirit of the present invention.

[0119] In the present invention, the features described and / or illustrated for one embodiment can be used in the same way or in a similar way in one or more other embodiments, and / or combined with the features of other embodiments or replace the features of other embodiments.

[0120] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, various modifications and variations can be made to the embodiments of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A detection system for a building support structure, characterized in that, The building support structure is a pier, and the detection system includes a position adjustment device (1) and a detection device (2). Among them, the position adjustment device (1) is connected to the detection device (2) through a flexible transmission member (11). The position adjustment device (1) is used to be arranged above the wall surface to be measured, and is used to control the height and position of the detection device (2) through the flexible transmission member (11) to realize the partial or overall detection of the building support structure. The flexible transmission member (11) is a rectangular or sheet-shaped belt. The detection device (2) includes a visual detection module (22), an ultrasonic detection module (23) and at least one ground penetrating radar detection module (25). The detection device (2) further includes a main body structure (21). The visual detection module (22) and the ultrasonic detection module (23) are installed on the main body structure (21). The visual detection module (22) includes a camera, and the camera protrudes from the bottom surface of the detection device (2). The ultrasonic detection module (23) is arranged on the side of the bottom of the main body structure (21) of the detection device (2). The visual detection module (22) and the ultrasonic detection module (23) are configured to keep a distance from the wall surface to be measured of the building support structure during the detection process, and are used to identify and scan the surface defects of the wall surface to be measured of the building support structure. The detection device (2) further includes at least one telescopic mechanism (24). The telescopic mechanism (24) includes a pressure sensor (241) and a push rod (242). One end of the push rod (242) is vertically connected to the side surface of the main body structure (21), and the other end is connected to the ground penetrating radar detection module (25). The at least one ground penetrating radar detection module (25) is configured to keep in contact with the wall surface to be measured of the building support structure during the detection process, and is used to detect the internal defects of the building support structure.

2. The detection system for the building support structure according to claim 1, wherein The ground penetrating radar detection module (25) is connected to the main body structure (21) through the telescopic mechanism (24), and the number of the telescopic mechanism (24) and the ground penetrating radar detection module (25) corresponds.

3. The detection system for the building support structure according to claim 2, wherein The ground penetrating radar detection module (25) includes a ground penetrating radar sensor (254) and a sliding body (251). The ground penetrating radar sensor (254) is arranged on the side of the sliding body (251) away from the main body structure (21) of the detection device (2), and is used to detect the internal defects of the building support structure.

4. The detection system for the building support structure according to claim 3, wherein The geological radar detection module (25) further includes a pushing piece (253). The pushing piece (253) is arranged on a side of the geological radar sensor (254) away from the sliding body (251). One end of the pushing piece (253) is fixedly connected to the geological radar sensor (254), and the other end is used for contacting the inner surface of the building support structure; During the movement of the sliding body (251), the pushing piece (253) is elastic and can deform with the surface of the building support structure, so that the geological radar detection module (25) always remains in contact with the surface of the building support structure; and / or The geological radar sensor (254) includes an electromagnetic wave transmitter (254-A) and an electromagnetic wave receiver (254-B).

5. The detection system for a building support structure according to claim 3, wherein A rotating shaft (252) is arranged at the connecting part of the sliding body (251) and the telescopic mechanism (24). In a state where the sliding body (251) abuts against the wall surface to be measured of the building support structure, the vertical angle of the sliding body (251) changes with the inclination angle of the surface of the building support structure, and the rotation angle range of the rotating shaft (252) is 0° to 30°.

6. The detection system for a building support structure according to claim 3, wherein The sliding body (251) includes at least three sliding wheels (251-A). The sliding wheels (251-A) are arranged on a side surface of the sliding body (251) away from the main body structure (21) of the detection device (2) and are rotatably connected to the sliding body (251); The rotation axis direction of the sliding wheel (251-A) is perpendicular to the movement direction of the sliding body (251), so that the sliding body (251) can slide smoothly along the surface of the building support structure.

7. The detection system for a building support structure according to claim 3, wherein The push rod (242) can automatically extend or shorten along its length direction for adjusting the lateral distance between the geological radar detection module (25) and the surface of the building support structure; The pressure sensor (241) is arranged on a side of the geological radar detection module (25) away from the push rod (242) for detecting the pressure between the geological radar detection module (25) and the surface of the building support structure; During the movement of the sliding body (251), the push rod (242) and the pressure sensor (241) are cooperatively linked. The push rod (242) adjusts the length of the push rod (242) based on the actual pressure data received by the pressure sensor (241), so that the sliding body (251) can always abut against the surface of the building support structure and provide a set pressure.

8. The detection system for a building support structure according to claim 2, wherein The ultrasonic detection module (23) includes an ultrasonic transmitter (23-A) and an ultrasonic receiver (23-B). At least one inclined surface that bends towards the center of the main body structure (21) is provided on the side of the bottom of the main body structure (21) to serve as the installation plane of the ultrasonic detection module (23), so that the scanning direction of the ultrasonic detection module (23) has an inclined angle in the vertical direction.

9. The detection system for a building support structure according to claim 1, wherein the position adjustment device (1) includes a driving mechanism (14), a support rod (12), and rollers (13); the driving mechanism (14) is arranged on the main body of the position adjustment device (1) to control the retraction and extension of the flexible transmission member (11) for adjusting the longitudinal position of the detection device (2); the support rod (12) is horizontally arranged on the side of the position adjustment device (1), and the support rod (12) can be telescoped along its length direction for adjusting the lateral position of the detection device (2); one end of the support rod (12) is fixedly connected to the side of the position adjustment device (1), and the other end is rotatably connected to the roller (13), and the roller (13) is used for horizontally supporting the flexible transmission member (11); and / or the flexible transmission member (11) is used to prevent the detection device (2) from rotating during the lifting process; and / or At least two flexible transmission members (11) are provided and are respectively connected to different positions of the detection device (2), and the flexible transmission members (11) are parallel to each other to prevent the detection device (2) from rotating during the lifting process.

10. A detection method for a building support structure, based on the detection system for a building support structure according to any one of claims 1-9, characterized in that, The detection method detects the building support structure during the ascending and / or descending process of the detection system. The steps of detecting the building support structure during the descending process of the detection system include: S10: Control the support rod (12) of the position adjustment device (1) to extend along its length direction, so that the detection device (2) connected to the flexible transmission member (11) reaches a predetermined detection position; S20: Control the push rod (242) of the detection device (2) to extend along its length direction, so that the sliding body (251) of the ground penetrating radar detection module (25) contacts the surface to be detected of the building support structure; S30: Control the retraction and extension speed of the flexible transmission member (11), so that the ground penetrating radar detection module (25) of the detection device (2) moves along the surface of the building support structure at a set speed to identify and detect internal defects of the building support structure, and make the visual detection module (22) and the ultrasonic detection module (23) of the detection device (2) move along the vertical direction at a set speed to scan and detect surface defects of the support structure; S40: During the working process of the ground penetrating radar detection module (25), based on the real-time pressure detected by the pressure sensor (241), control the length of the push rod (242) so that the sliding body (251) always abuts against the inner wall of the building support structure and maintains a set pressure; S50: After it is recognized by the visual detection module (22) and / or the ultrasonic detection module (23) that the detection device (2) has reached the bottom of the building support structure, control the flexible transmission member (11) of the position adjustment device (1) to stop lowering; S60: Control the push rod (242) of the detection device (2) to contract, and the position adjustment device (1) drives the flexible transmission member (11) to retract upward, so that the detection device (2) rises to the initial height, completing the detection operation of the current building support structure.

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