Nondestructive testing equipment for reinforcing steel bars in concrete and testing method of nondestructive testing equipment

Abstract

The invention relates to nondestructive testing equipment for reinforcing steel bars in concrete and a testing method of the nondestructive testing equipment, and relates to the technical field of concrete detection.The nondestructive testing equipment comprises a testing frame which is provided with a climbing abutting mechanism, a deviation rectifying abutting mechanism and various auxiliary functional parts and is connected with a detector through a mechanical arm or a walking mechanism; when the high position of the concrete structure needs to be detected, by taking the columnar concrete structure as an example, the climbing abutting mechanisms are contracted firstly, the detection frame is placed on the outer side of the concrete structure, and then the climbing abutting mechanisms stretch out, so that the climbing wheels abut against the two sides of the concrete structure; then, the climbing wheels can be driven to rotate through the climbing drive, finally, the overall ascending of the detection frame and the detector is realized, the concrete structure can be scanned by the detector in the ascending process, nondestructive detection is realized, or the detector can be stopped after stage ascending, and scanning is carried out in a static state.

Description

Technical Field

[0001] This application relates to the technical field of steel bar detection equipment, and particularly relates to a non-destructive detection equipment for steel bars in concrete and its detection method. Background Art

[0002] Reinforced concrete has become the most widely used building material in the world due to its wide and easily available raw material sources, high compressive strength, good volume stability, easy construction and on-site shaping, and low cost. However, when reinforced concrete structures are exposed to harsh environments for a long time, the influence of external corrosion media often makes the service life of these structures not as long as expected, thus failing to meet the durability requirements specified by the codes. Therefore, it is necessary to use non-destructive detection equipment to detect the steel bar conditions in concrete.

[0003] The existing Chinese patent with the publication number CN119086602A discloses a non-destructive detection device and method for steel bar corrosion in concrete, including a microwave detector body, a detector docking head, a docking cylinder, a connection head, a locking cylinder, a detection wire, a conductive branch wire, a primary locking mechanism, a limiting mechanism, and a secondary locking mechanism. Using the electromagnetic wave characteristics of microwaves to detect substances can achieve non-contact, non-destructive, and high-precision detection of substances. Compared with traditional detection methods, the advantages of microwave detection are high sensitivity, short operation time and convenience, low cost, and harmless to the human body. In specific detections, microwave flaw detection has strong penetration ability, can detect defects at a depth of several meters, and can non-destructively detect the corrosion conditions of steel bars in concrete structures under the protective layer.

[0004] The above-mentioned related technologies have the following defects: During its use, it is necessary to hold the detection wire by hand to detect specific positions. When the concrete structure has a certain height and exceeds the hand-held range, it is necessary to rely on other structures such as scaffolding, which is inconvenient to operate, and manual operation has certain safety hazards, so it needs to be improved. Summary of the Invention

[0005] In order to improve the convenience of detecting high places of concrete structures, this application provides a non-destructive detection equipment for steel bars in concrete and its detection method.

[0006] A non-destructive detection equipment for steel bars in concrete includes a detector, the detector is arranged on a detection frame, a climbing and pressing mechanism is arranged inside the detection frame, a climbing wheel is arranged at the end of the climbing and pressing mechanism, and a climbing drive for driving the climbing wheel to rotate is arranged at the end of the pressing mechanism. The climbing wheel is arranged vertically, and several climbing wheels on the two detection clamping plates respectively press against both sides of the concrete structure.

[0007] By adopting the above technical solution, the automatic climbing function of the detector on the concrete structure is realized. Specifically, the climbing pressing mechanism is used to drive the climbing wheels to press against both sides of the concrete structure, and the climbing drive is used to control the rotation of the climbing wheels, thereby pushing the entire detection frame and the detector to move upward along the concrete structure. This design effectively solves the problem of inconvenient operation of the traditional hand-held detection method when facing high-altitude detection, and improves the convenience and safety of non-destructive detection of high-altitude concrete structures.

[0008] Preferably, a deviation rectifying pressing mechanism is further arranged inside the detection clamping plate. A deviation rectifying wheel is rotatably arranged at the end of the deviation rectifying pressing mechanism, and a deviation rectifying drive for driving the deviation rectifying wheel to rotate is arranged at the end of the deviation rectifying pressing mechanism. The deviation rectifying wheel is arranged horizontally.

[0009] By adopting the above technical solution, when the upward movement route deviates, the deviation rectifying wheel can press against the concrete structure, and the deviation rectifying drive drives the deviation rectifying wheel to rotate. The horizontally arranged deviation rectifying wheel is used to realize the lateral adjustment of the overall upward movement direction of the detection frame, so as to ensure that the detection frame is closely attached to the concrete structure, and improve the stability and accuracy of the detection process.

[0010] Preferably, an angle adjustment mechanism is further connected between the deviation rectifying pressing mechanism and the detection clamping plate.

[0011] By adopting the above technical solution, the setting of the angle adjustment mechanism enables the angle of the deviation rectifying wheel to be flexibly adjusted. On the one hand, when deviation rectification is not required, the deviation rectifying wheel can be adjusted to a vertical state, so that its function is the same as that of the climbing wheel, and they jointly participate in the climbing action to enhance the overall climbing ability; on the other hand, the deviation rectifying wheel can be adjusted to an inclined state to realize deviation rectification operation during the climbing process, and improve the stability and adaptability of the equipment operation. This design significantly improves the operation flexibility and reliability of the detection equipment in complex environments.

[0012] Preferably, the detection frame includes a pair of detection clamping plates and a telescopic drive connected between the two detection clamping plates.

[0013] By adopting the above technical solution, the telescopic drive can adjust the distance between the two detection clamping plates, so that the detection frame is applicable to concrete structures with different thickness specifications. At the same time, the telescopic drive cooperates with the climbing pressing mechanism to more quickly realize the switching of the pressing state between the detection frame and the concrete structure, effectively improving the working efficiency and adaptability of the equipment.

[0014] Preferably, an adjustment drive is further arranged inside the telescopic drive. An adjustment wheel is rotatably arranged at the end of the adjustment drive, and the adjustment wheel abuts against the concrete structure.

[0015] By adopting the above technical solutions, this design enables the flexible adjustment of the distance between the middle section of the detection framework and the concrete structure, thereby improving the ability of the equipment to adapt to concrete structures of different shapes and sizes, and ensuring the stability and accuracy during the detection process. Specifically, the adjusting wheel can provide additional supporting force when the detection framework moves up and down, reducing the risk of deviation, and further optimizing the operation convenience and safety of the entire detection process.

[0016] Preferably, a fall prevention arm is provided at the bottom of the detection framework. A fall prevention wheel is rotatably provided at the bottom of the fall prevention arm. The fall prevention wheel abuts against the concrete structure. A one-way rotation mechanism is provided between the fall prevention wheel and the fall prevention arm.

[0017] By adopting the above technical solutions, a one-way rotation mechanism is provided between the fall prevention wheel and the fall prevention arm to ensure that the fall prevention wheel can only freely rotate in one direction, without causing obstruction during the normal upward movement of the detection equipment, and automatically locking when moving downward or stalling, further enhancing the safety performance of the equipment. It can effectively prevent the detection equipment from sliding down rapidly due to accidental loss of power during the climbing process, improving the safety of use.

[0018] Preferably, the one-way rotation mechanism includes a ratchet wheel, a pawl and a fall prevention elastic member. The ratchet wheel is fixedly connected to the fall prevention wheel and coaxially arranged. The pawl is rotatably connected to the fall prevention arm and the tip of the pawl is inserted into the tooth groove of the ratchet wheel. The fall prevention elastic member is connected between the pawl and the fall prevention arm and is used to maintain the tendency of the pawl to abut tightly against the ratchet wheel.

[0019] By adopting the above technical solutions, when the detection equipment moves upward on the concrete structure, the fall prevention wheel remains in contact with the concrete structure. If the detection equipment accidentally slides down, the ratchet wheel and the pawl in the one-way rotation mechanism will prevent the fall prevention wheel from rotating in the reverse direction, effectively preventing the equipment from slipping. This design significantly improves the safety of equipment use, especially in high-altitude working environments, avoiding the operation inconvenience and safety hazards that may be caused by the equipment slipping. In addition, the fall prevention elastic member ensures that the pawl is always tightly embedded in the tooth groove of the ratchet wheel, further enhancing the reliability of the fall prevention function.

[0020] Preferably, a robotic arm is provided between the detection framework and the detector.

[0021] By adopting the above technical solutions, the detector can be flexibly adjusted on the detection framework through the robotic arm, so as to meet the requirements of different detection positions, improving the accuracy and flexibility of detection. This solution enables the detector to better complete the non-destructive detection task of steel bars in concrete in a complex environment.

[0022] Preferably, a traveling mechanism is provided at the top of the detection framework. The detector is connected to the traveling mechanism.

[0023] By adopting the above technical solution, a walking mechanism is set on the top of the detection frame and connected to the detector, so that the detector can move flexibly along the top of the detection frame. This design realizes the convenient switching of the detector between different positions of the concrete structure, improving the detection coverage and operational flexibility. The specific effects include: first, it is convenient for the detector to perform a comprehensive scan of multiple surfaces of the concrete structure; second, it reduces the need for manual adjustment of the detection position and improves the detection efficiency.

[0024] A detection method based on non-destructive detection equipment for steel bars in concrete. Taking a columnar concrete structure as an example, a climbing and clamping mechanism is first retracted to place a detection frame on the outside of the concrete structure. The climbing and clamping mechanism is then extended to allow a number of climbing wheels to press against both sides of the concrete structure. Thereafter, the climbing wheels can be driven to rotate by a climbing drive, thereby ultimately achieving the upward movement of the detection frame and the detector as a whole. During the upward movement, the detector is used to scan the concrete structure to achieve non-destructive detection, or the detection frame stops after ascending to a specified position and scans in a stationary state.

[0025] By adopting the above technical solution, the detection method can effectively solve the problem of inconvenient operation in high-altitude detection of concrete structures. The specific effects are as follows: By setting up a climbing and tightening mechanism, climbing wheels and climbing drive, the autonomous climbing function of the detection frame and the detector on the concrete structure is realized, and the detection of high positions can be completed without manual hand-held detection wires, which improves operational safety and convenience. Using the detector for real-time scanning during the upward process can realize continuous non-destructive testing and improve detection efficiency; at the same time, it supports stopping and static detection at a specified position, which enhances detection flexibility and accuracy.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting up the climbing and tightening mechanism and climbing wheels, the detection equipment can climb autonomously on the surface of the concrete structure without manual hand-held operation or the use of climbing tools, which significantly improves the convenience and safety of non-destructive testing of high-altitude targets; 2. The coordinated use of the correction and tightening mechanism and the correction wheel can correct the deviation of the detection frame in real time during operation, ensure that the equipment moves stably along the predetermined path, improve the detection accuracy and reduce the repetitive work caused by deviation; 3. The detection frame adopts a modular design, including telescopic drive parts, adjustment wheels and other components. The adaptation parameters can be flexibly adjusted according to concrete structures of different sizes, which enhances the applicability and versatility of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application; Figure 2This is a schematic structural diagram for reflecting the positional relationship between the detector and the concrete structure in the embodiments of this application; Figure 3 This is a schematic structural diagram for reflecting the connection relationship between the anti-falling arm and the detection frame in the embodiments of this application; Figure 4 This is a schematic structural diagram for reflecting the connection relationship between the traveling mechanism and the detection frame in the embodiments of this application; Figure 5 This is a schematic structural diagram for reflecting the connection relationship between the traveling drive and the traveling wheels in the embodiments of this application; Figure 6 This is a schematic structural diagram for reflecting the connection relationship between the traveling wheels and the detection frame in the embodiments of this application; Figure 7 This is a schematic structural diagram for reflecting the angular relationship between the climbing wheels and the deviation-correcting wheels in the embodiments of this application; Figure 8 This is a schematic structural diagram for reflecting the connection relationship between the anti-falling wheels and the detection clamping plates in the embodiments of this application; Figure 9 This is a schematic structural diagram for reflecting the connection relationship between the anti-falling wheels and the one-way rotation mechanism in the embodiments of this application.

[0028] In the figure: 1. Detection frame; 11. Detection clamping plate; 12. Telescopic drive member; 2. Detector; 21. Robot arm; 3. Traveling mechanism; 31. Traveling wheels; 32. Traveling drive; 4. Climbing pressing mechanism; 41. Climbing wheels; 5. Deviation-correcting pressing mechanism; 51. Deviation-correcting wheels; 52. Angle adjusting mechanism; 6. Adjusting drive member; 61. Adjusting wheels; 7. Anti-falling arm; 71. Upward elastic member; 72. Anti-falling wheels; 8. One-way rotation mechanism; 81. Ratchet; 82. Pawl; 83. Anti-falling elastic member. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings. The described embodiments are only possible technical implementations of the present invention, not all possible implementations. Those skilled in the art can fully combine the embodiments of the present invention to obtain other embodiments without creative labor, and these embodiments are also within the protection scope of the present invention.

[0030] The inventors of the present application have found that traditional non-destructive testing equipment for steel bars has difficulty in dealing with the inconvenience of operation and potential safety hazards of high concrete structures. Therefore, the present application mainly adopts the design concept of combining a climbing wheel and a driving mechanism to achieve the purpose of automatic climbing to improve the detection efficiency and safety. The following is a more detailed description of the present invention. Embodiment

[0031] Refer to Figures 1 to 3 As shown in the figure, the non-destructive testing equipment for steel bars in concrete provided by the embodiment of the present application includes a detection frame 1 for carrying a detector 2. The detection frame 1 is of a U-shaped structure, which overall includes a pair of parallel detection clamping plates 11 and a telescopic driving member 12 between the two detection clamping plates 11. During actual use, the detection frame 1 is buckled on the outer side of a columnar concrete structure, and then the telescopic driving member 12 can adjust the distance between the two detection clamping plates 11, so that the detection frame 1 is applicable to concrete structures with more thickness specifications. A traveling mechanism 3 is also provided at the top of the detection frame 1. A robotic arm 21 is fixedly installed above the traveling mechanism 3, and the detector 2 is actually connected to the end of the robotic arm 21. When the traveling mechanism 3 travels along the detection frame 1 to the required position, the robotic arm 21 can then control the detector 2 to the required position, such as the three sides of a columnar concrete structure, for scanning detection respectively.

[0032] Refer to Figures 4 to 6 As shown in the figure, the traveling mechanism 3 includes an inverted U-shaped traveling frame, which is buckled on the top of the detection frame 1. A number of traveling wheels 31 are arranged inside the traveling frame, and each traveling wheel 31 has a traveling drive 32 to achieve rotation. In this embodiment, the traveling drive 32 is a motor. A tightening member such as a spring is also provided between the traveling wheel 31 and the traveling frame, automatically achieving a tightened state with the traveling frame while satisfying the stable sliding of the traveling wheel 31 relative to the traveling frame. The number of traveling wheels 31 is divided into two rows and respectively clamp both sides in the thickness direction of the detection frame 1, so as to enable the traveling frame to travel along the top of the detection frame 1, conveniently adjusting the position of the detector 2 and facilitating the detector 2 to scan and detect each surface of the concrete structure.

[0033] Refer to Figure 1 As shown in the figure, a climbing tightening mechanism 4 is installed on the inner side (i.e., the side close to the object to be measured) of the detection clamping plate 11. A vertically arranged climbing wheel 41 is assembled at the end of the climbing tightening mechanism 4, and the climbing wheel 41 is driven to rotate by an internal or external climbing drive component. In this embodiment, climbing wheels 41 are provided at the four corners of a single detection clamping plate 11, and these two groups of climbing wheels 41 on the two detection clamping plates 11 are respectively closely attached to and press on both sides of the concrete structure, thereby generating the necessary frictional force to push the overall upward or downward movement, solving the problem of inconvenient operation of traditional hand-held detection equipment.

[0034] Refer to Figure 7, the climbing clamping mechanism 4 can be realized by using a pneumatic telescopic rod in cooperation with a spring. The pneumatic telescopic rod is made of high-strength aluminum alloy, which is lightweight and durable. For example, the pneumatic telescopic rod is slidably connected to the detection clamping plate 11, and the spring is used to push the pneumatic telescopic rod inward. In this way, the position of the climbing wheel 41 relative to the detection clamping plate 11 can be actively adjusted, and the state trend of always being clamped against the concrete structure can be passively maintained by the spring at all times. In addition, nylon bushings can be embedded in the key parts of the sliding fit to reduce wear and extend the service life.

[0035] Refer to Figure 7 , a deviation correction clamping mechanism 5 is further provided inside the detection clamping plate 11. A deviation correction wheel 51 is rotatably provided at the end of this mechanism, and a dedicated low-power reduction motor is equipped as the driving power source to realize the rotation of the deviation correction wheel 51. Under normal conditions, the deviation correction wheel 51 is arranged horizontally, and it can timely correct the running track when the detection frame 1 deviates, avoiding detection errors caused by deviation and even the risk of accidents such as the fall of the detection frame 1. The principle of the deviation correction clamping mechanism 5 can be set to the same structure as that of the climbing clamping mechanism 4, so it will not be elaborated here.

[0036] An angle adjustment mechanism 52 is also connected between the deviation correction clamping mechanism 5 and the deviation correction wheel 51. For example, in the form of a servo motor, etc., allowing users to freely set a suitable angle range according to the actual situation. The angle of the deviation correction wheel 51 can be adjusted through the angle adjustment mechanism 52, so that the actual function of the deviation correction wheel 51 can be flexibly adjusted. For example, when deviation correction is not required, the deviation correction wheel 51 can be adjusted to a vertical state, and in this state, the function of the deviation correction wheel 51 can be adjusted to be the same as that of the climbing wheel 41, so as to jointly bear the climbing power. Another example is that the deviation correction wheel 51 can be adjusted to an inclined state, so that the deviation correction wheel 51 can achieve deviation correction while climbing, with stronger applicability and greater flexibility. This flexibility makes the entire device more suitable for the needs of various building forms and improves the applicability.

[0037] Refer to Figure 1 , an adjustment driving member 6 is further provided inside the telescopic driving member 12. The adjustment driving member 6 can be a structure such as an electric push rod. An adjustment wheel 61 is rotatably provided at the end of the adjustment driving member 6. The adjustment wheel 61 is arranged vertically and abuts against the concrete structure. The adjustment wheel 61 itself does not require additional rotational drive to actively climb, and it only needs to rotate passively when the detection frame 1 moves up and down as a whole. The detection frame 1 is integrally U-shaped. The climbing wheel 41 and the anti-drop wheel are both installed on the opposite inner side walls of the U-shaped frame, and the adjustment wheel 61 is installed on the inner side of the middle section of the U-shaped frame, so that the distance between the middle section of the detection frame 1 and the concrete structure can be realized by using the adjustment driving member 6.

[0038] Refer to Figure 1 、 Figure 8 AndFigure 9 At the bottom of the detection frame 1, a fall-prevention arm 7 is rotatably arranged through a rotating shaft. An upward-pulling elastic member 71 is connected between the fall-prevention arm 7 and the inner side of the detection frame 1. The upward-pulling elastic member 71 is a spring, which is used to pull the fall-prevention arm 7 inward and upward. At the bottom of the fall-prevention arm 7, a fall-prevention wheel 72 is rotatably arranged through a bearing. During the process of the fall-prevention arm 7 being lifted, the fall-prevention wheel 72 can automatically abut against the side wall of the concrete structure. A one-way rotation mechanism 8 is arranged between the fall-prevention wheel 72 and the fall-prevention arm 7. The one-way rotation mechanism 8 includes a ratchet wheel 81, a ratchet pawl 82 and a fall-prevention elastic member 83. The ratchet wheel 81 is fixedly connected with the fall-prevention wheel 72 and coaxially arranged. The ratchet pawl 82 is rotatably connected with the fall-prevention arm 7 through a rotating shaft, and the tip of the ratchet pawl 82 is inserted into the tooth groove of the ratchet wheel 81. In this embodiment, the fall-prevention elastic member 83 is a spring and its two ends are connected between the ratchet pawl 82 and the fall-prevention arm 7. The fall-prevention elastic member 83 is used to maintain the tendency of the ratchet pawl 82 to abut tightly against the ratchet wheel 81.

[0039] The implementation principle of this embodiment is as follows: Autonomous climbing function: Through the frictional contact between the climbing wheels 41 and both sides of the concrete structure, and by cooperating with the climbing drive to control the rotation of the climbing wheels 41, the automatic upward or downward movement of the device along the columnar structure is realized. Compared with traditional handheld devices, there is no need for manual climbing or platform erection, which significantly improves the safety and efficiency of high-altitude detection.

[0040] Real-time deviation correction function: When the upward movement path of the device has a lateral deviation, the deviation correction wheel 51 abuts tightly against the surface of the concrete structure. By adjusting the rotation speed of the deviation correction wheel 51 through the deviation correction drive, the running direction of the device is corrected by using the lateral frictional force, ensuring that the detection path is consistent with the preset trajectory and reducing repeated detections caused by deviations.

[0041] Enhanced dynamic stability: The lateral deviation correction wheel 51 and the vertical climbing wheels 41 cooperate to form a multi-dimensional motion control system, which effectively suppresses the vibration or swing of the device in a complex environment and improves the accuracy of detection data.

[0042] Multi-functional mode switching: The angle adjustment mechanism 52 allows the deviation correction wheel 51 to switch between the vertical and inclined states. In the vertical state, the deviation correction wheel 51 can be used as an auxiliary climbing wheel 41 to enhance the driving force; in the inclined state, it is specifically used for deviation correction operations, realizing "one machine with multiple functions" and enhancing the flexibility of the device.

[0043] Fall-prevention safety guarantee: The one-way rotation mechanism 8 (such as the ratchet wheel 81 - ratchet pawl 82 structure) allows the fall-prevention wheel 72 to rotate freely during upward movement, and automatically locks when the device stalls and slides down, preventing accidental falls, especially suitable for high-altitude or inclined environments.

[0044] Multi-degree-of-freedom detection: The robotic arm 21 (such as a six-axis robotic arm 21) can adjust the pitch angle, rotation angle, and telescopic distance of the detector 2 to achieve three-dimensional spatial scanning of the steel bars, especially suitable for detecting the intersection points or hidden areas of the steel bars. In addition, by cooperating with the traveling mechanism 3, the detector 2 can move horizontally along the top of the detection frame 1, and the circumferential coverage detection of the concrete structure can be completed without reinstalling the equipment, with higher efficiency.

[0045] The embodiment of the present application also discloses a detection method based on a non-destructive detection device for steel bars in concrete. Taking a columnar concrete structure as an example, first, the climbing and clamping mechanism 4 is retracted, and the detection frame 1 is placed outside the concrete structure. Then, the climbing and clamping mechanism 4 is extended so that several climbing wheels 41 are clamped against both sides of the concrete structure. After that, the climbing wheels 41 can be driven to rotate by the climbing drive, and finally, the overall upward movement of the detection frame 1 and the detector 2 is realized. During the upward movement, the detector 2 is used to scan the concrete structure to achieve non-destructive detection, or stop after ascending to a designated position and perform scanning in a stationary state.

[0046] The implementation principle of this embodiment is that the detection method can effectively solve the problem of inconvenient operation for detecting high positions of concrete structures. The specific effects are as follows: By setting the climbing and clamping mechanism 4, climbing wheels 41, and climbing drive, the autonomous climbing function of the detection frame 1 and the detector 2 on the concrete structure is realized. The detection of high positions can be completed without manually holding the detection wire, improving the operation safety and convenience. Real-time scanning is performed using the detector 2 during the upward movement, enabling continuous non-destructive detection and improving the detection efficiency; at the same time, it supports stopping at a designated position and performing stationary detection, enhancing the detection flexibility and accuracy.

[0047] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A non-destructive testing device for steel bars in concrete, comprising a detector (2), characterized in that: The detector (2) is arranged on the detection frame (1). A climbing and pressing mechanism (4) is arranged inside the detection frame (1). A climbing wheel (41) is arranged at the end of the climbing and pressing mechanism (4), and a climbing drive for driving the climbing wheel (41) to rotate is arranged at the end of the pressing mechanism. The climbing wheel (41) is arranged vertically, and several climbing wheels (41) on the two detection clamping plates (11) respectively press against both sides of the concrete structure.

2. The non-destructive testing device for steel bars in concrete according to claim 1, characterized in that: A deviation correction and pressing mechanism (5) is further arranged inside the detection clamping plate (11). A deviation correction wheel (51) is rotatably arranged at the end of the deviation correction and pressing mechanism (5), and a deviation correction drive for driving the deviation correction wheel (51) to rotate is arranged at the end of the deviation correction and pressing mechanism (5). The deviation correction wheel (51) is arranged horizontally.

3. The non-destructive testing equipment for steel bars in concrete according to claim 2, characterized in that: An angle adjustment mechanism (52) is also connected between the deviation correction and pressing mechanism (5) and the detection clamping plate (11).

4. An apparatus for non-destructive testing of steel bars in concrete according to claim 1, characterized in that: The detection frame (1) includes a pair of detection clamping plates (11) and a telescopic drive member (12) connected between the two detection clamping plates (11).

5. The non-destructive testing equipment for steel bars in concrete according to claim 4, characterized in that: An adjustment drive member (6) is further arranged inside the telescopic drive member (12). An adjustment wheel (61) is rotatably arranged at the end of the adjustment drive member (6), and the adjustment wheel (61) abuts against the concrete structure.

6. The non-destructive testing equipment for steel bars in concrete according to claim 1, characterized in that: An anti-falling arm (7) is arranged at the bottom of the detection frame (1). An anti-falling wheel (72) is rotatably arranged at the bottom of the anti-falling arm (7). The anti-falling wheel (72) abuts against the concrete structure. A one-way rotation mechanism (8) is arranged between the anti-falling wheel (72) and the anti-falling arm (7).

7. An apparatus for non-destructive testing of steel bars in concrete according to claim 6, characterized in that: The one-way rotation mechanism (8) includes a ratchet wheel (81), a ratchet pawl (82) and an anti-falling elastic member (83). The ratchet wheel (81) is fixedly connected with the anti-falling wheel (72) and is coaxially arranged. The ratchet pawl (82) is rotatably connected with the anti-falling arm (7), and the tip of the ratchet pawl (82) is inserted into the tooth slot of the ratchet wheel (81). The anti-falling elastic member (83) is connected between the ratchet pawl (82) and the anti-falling arm (7) and is used to maintain the tendency of the ratchet pawl (82) to press tightly against the ratchet wheel (81).

8. An on - line non - destructive testing device for steel bars in concrete, characterized in that: A robotic arm (21) is arranged between the detection frame (1) and the detector (2).

9. An apparatus for non-destructive testing of steel bars in concrete according to claim 1, characterized in that: A traveling mechanism (3) is arranged at the top of the detection frame (1). The detector (2) is connected to the traveling mechanism (3).

10. A detection method for a non-destructive testing device for steel bars in concrete according to any one of claims 1-9, characterized in that: Taking a columnar concrete structure as an example, first contract the climbing and pressing mechanism (4), place the detection frame (1) outside the concrete structure, and then extend the climbing and pressing mechanism (4) so that several climbing wheels (41) press against both sides of the concrete structure. After that, the climbing wheels (41) can be driven to rotate by the climbing drive, and finally the whole detection frame (1) and the detector (2) can move upward. During the upward movement, the concrete structure is scanned by the detector (2) to achieve non-destructive testing. Or, stop after moving upward to a specified position and perform scanning in a static state.

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