Ultrasonic flaw detection device for steel structure

Abstract

The utility model relates to steel structure detection technical field discloses a kind of steel structure ultrasonic flaw detection device, including chassis, the top of chassis is fixedly connected with carrier plate, the top of carrier plate is fixedly connected with electric slide rail, the front side of electric slide rail is fixedly connected with angle adjusting mechanism, the top of carrier plate is fixedly connected with ration mechanism, angle adjusting mechanism includes adjusting box, the rear side of adjusting box is slidably connected in the front side of electric slide rail, the top of adjusting box is fixedly connected with motor, the drive end of motor is fixedly connected with driving plate, the bottom of driving plate is rotatably connected with driven plate. In the utility model, it realizes accurate coverage steel structure detection area, reduces manual operation error, accurate coverage steel structure detection area, with the aid of sector gear and elastic limiting structure, ensure that probe swing angle is stable, reciprocating motion is smooth, improve flaw detection efficiency and detection result consistency.

Description

Technical Field

[0001] This utility model relates to the field of steel structure inspection technology, and in particular to an ultrasonic flaw detection device for steel structures. Background Technology

[0002] Ultrasonic flaw detection equipment is a device that uses the propagation characteristics of ultrasonic waves in a medium (such as reflection and refraction) to detect internal or surface defects in materials. It mainly consists of an ultrasonic flaw detector, a probe, and a coupling agent, and is widely used in fields such as machinery manufacturing, aerospace, and petrochemicals to ensure the quality and safety of workpieces.

[0003] Ultrasonic flaw detectors for steel structures are non-destructive testing equipment designed for steel structural components. They identify internal defects by emitting ultrasonic waves through a probe and receiving the reflected echoes. They are suitable for steel structure manufacturing, installation, and other scenarios to ensure component quality. The flaw detector generates a high-frequency electrical signal to excite the probe to emit ultrasonic waves. When the ultrasonic waves enter the steel structure, they encounter defects and generate reflected echoes. The probe receives the echoes and converts them into electrical signals. After processing by the flaw detector, the location and size of the defects are displayed in waveform or data form.

[0004] In existing technologies, some ultrasonic flaw detection devices for steel structures have significant limitations in the detection process due to the probes equipped in them. The operation of the probes relies on frequent manual calibration and adjustment, and traditional probes are difficult to adapt to special parts such as curved surfaces and corners of complex steel structures. The detection angle and position need to be changed multiple times, resulting in a significant reduction in detection efficiency, a cumbersome process, and a lot of time consumption. Therefore, an ultrasonic flaw detection device for steel structures is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a multi-degree-of-freedom naked-eye 3D display screen angle adjustment bracket, which aims to improve the problems of lack of multi-degree-of-freedom angle adjustment or motion interference in the adjustment process in the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An ultrasonic flaw detection device for steel structures includes a chassis, a carrier plate fixedly connected to the top of the chassis, an electric slide rail fixedly connected to the top of the carrier plate, an angle adjustment mechanism fixedly connected to the front side of the electric slide rail, a metering mechanism fixedly connected to the top of the carrier plate, the angle adjustment mechanism including an adjustment box, the rear side of the adjustment box slidably connected to the front side of the electric slide rail, a motor fixedly connected to the top of the adjustment box, an active plate fixedly connected to the drive end of the motor, a driven plate rotatably connected to the bottom of the active plate, a sector-shaped gear disk rotatably connected inside the adjustment box, limit components fixedly connected to the left and right sides of the sector-shaped gear disk, a gear rotatably connected inside the adjustment box, and a probe fixedly connected to the bottom of the gear. Through the above technical solution: the ultrasonic flaw detection device for steel structure has a carrier plate on the top of the chassis, on which there is an electric slide rail, an angle adjustment mechanism and a quantitative mechanism. In the angle adjustment mechanism, the adjustment box is connected to the electric slide rail and can move. The motor drives the active plate to drive the driven plate, so that the sector gear disk is linked to the gear. The bottom probe can perform flaw detection.

[0007] As a further description of the above technical solution: The limiting component includes a driven block, and the left and right sides of the driven plate are respectively fixedly connected to the adjacent sides of the two driven blocks. A spring is fixedly connected to the right side of one of the driven blocks. A driven groove is provided inside the adjusting box. The above technical solution consists of a driven block, a spring, and a driven groove. The two driven blocks are connected to both sides of the driven plate, and one driven block is connected to the spring. The driven block slides in the driven groove and plays a limiting and guiding role.

[0008] As a further description of the above technical solution: The metering mechanism includes a metering box, the bottom of which is fixedly connected to the top of the carrier plate. A fixing plate is fixedly connected to the inner wall of the metering box. A metering plate is rotatably connected to the bottom of the fixing plate. Through holes are opened in the interior of the metering plate and the interior of the fixing plate. An adjustment component is fixedly connected to the right side of the metering plate. A limit groove is opened in the interior of the metering box. A spring is fixedly connected to the inner wall of the limit groove. A linkage groove is opened in the interior of the metering box. The above technical solution includes a metering box, the bottom of which is fixed to a carrier plate. The bottom of the fixed plate inside the box is rotatably connected to the metering plate. Both are provided with through holes. The right side of the metering plate is connected to an adjustment component. A limiting groove and a linkage groove are opened inside the metering box to realize the adjustment of the coupling agent flow rate and the limiting of the mechanism.

[0009] As a further description of the above technical solution: The adjustment assembly includes a connecting block, the left side of which is fixedly connected to the right side of the metering plate, a second spring fixedly connected to the inner wall of the left side of the connecting block, a lever fixedly connected to the right side of the second spring, and a linkage block fixedly connected to the top of the lever. The above technical solution involves an adjustment component consisting of a connecting block, a second spring, a lever block, and a linkage block. The connecting block is connected to the right side of the metering plate, and its inner wall is connected to the lever block via the second spring. A linkage block is provided on the top of the lever block to cooperate with the linkage groove to limit the metering plate position.

[0010] As a further description of the above technical solution: A liquid storage tank is fixedly connected to the top of the carrier plate, a power pump is fixedly connected to the top of the carrier plate, and a connecting block is fixedly connected to the rear side of the carrier plate. The above technical solution involves a liquid storage tank and a power pump installed on the top of the carrier plate, which are used to store the coupling agent and provide pumping power, respectively. A fixed connecting block is installed on the rear side to provide a support point for the overall structural connection or functional expansion of the device.

[0011] As a further description of the above technical solution: The gear is meshed with the front side of the sector gear disk, and the right side of one of the springs is fixedly connected to the right inner wall of one of the driven slots. The driven block is slidably connected to the inside of the driven slot. Through the above technical solution: the gear meshes with the front side of the sector gear disk, the sector gear disk is connected to the driven plate through the left and right driven blocks, one driven block abuts against the inner wall of the driven groove through a spring, and the driven block slides in the driven groove to ensure stable transmission.

[0012] As a further description of the above technical solution: The outer side of the metering plate is in contact with the inner wall of the metering mechanism, and the outer side of the lever is slidably connected to the inside of the limiting groove. Through the above technical solution: the outer side of the metering plate is tightly fitted to the inner wall of the metering mechanism to prevent coupling agent leakage; the lever can slide in the limiting groove, and through the spring assembly and the linkage groove, the precise limiting and stability of the metering plate after adjustment can be achieved.

[0013] As a further description of the above technical solution: The outer side of the linkage block is in contact with the inner wall of the linkage groove, and the outer side of the toggle block is slidably connected to the inside of the connecting block; The above technical solution involves the outer side of the linkage block contacting the inner wall of the linkage groove, achieving positioning through sliding engagement, and the pusher block sliding within the connecting block. The linkage block is then engaged in the linkage groove by the spring force, ensuring that the position of the metering plate is fixed after adjustment.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the adjustment box is moved along the XYZ axis by an electric slide rail, positioning the probe in a suitable detection area. The motor is started, driving the active plate to rotate, which in turn drives the driven plate to move synchronously, thereby pushing the sector-shaped gear disk to reciprocate within the adjustment box, which in turn drives the gear to rotate. A spring provides elastic limit to the driven block through the driven groove, thus achieving precise coverage of the steel structure detection area, reducing human operation errors, and ensuring stable probe swing angle and smooth reciprocating motion with the help of the sector-shaped gear disk and elastic limit structure, thereby improving flaw detection efficiency and consistency of detection results.

[0015] 2. In this utility model, the spring is stretched by pulling the lever, which causes the linkage block to disengage from the linkage groove. Then, the metering plate is rotated by the connecting block, aligning the three different aperture through holes inside with the through holes of the fixing plate. Then, the lever is released, and the spring is reset, causing the linkage block to be inserted into the corresponding linkage groove to fix the metering plate. This achieves rapid switching of three apertures through mechanical linkage and elastic limiting structure. The flow rate of the coupling agent can be accurately matched according to the detection requirements, avoiding manual adjustment errors, achieving constant flow supply of coupling agent, and improving detection efficiency and coupling uniformity. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of an ultrasonic flaw detection device for steel structures proposed in this utility model. Figure 2 This is a schematic diagram of the carrier plate of a steel structure ultrasonic flaw detection device proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view at point B in the middle; Figure 5 This is a schematic diagram of the quantitative box of a steel structure ultrasonic flaw detection device proposed in this utility model; Figure 6 for Figure 5 Enlarged view of section B in the middle.

[0017] Legend: 1. Chassis; 2. Carrier plate; 3. Electric slide rail; 4. Angle adjustment mechanism; 41. Adjustment box; 42. Motor; 43. Driving plate; 44. Driven plate; 45. Sector gear plate; 46. Limiting component; 4601. Driven block; 4602. Spring 1; 4603. Driven groove; 47. Gear; 48. Probe; 5. Metering mechanism; 51. Metering box; 52. Fixing plate; 53. Metering plate; 54. Through hole; 55. Adjusting component; 5501. Connecting block; 5502. Spring 2; 5503. Pulley; 5504. Linkage block; 56. Limiting groove; 57. Spring 3; 58. Linkage groove; 6. Storage tank; 7. Power pump; 8. Connecting block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figures 1 to 3 This utility model provides an embodiment of an ultrasonic flaw detection device for steel structures, comprising a chassis 1, a carrier plate 2 fixedly connected to the top of the chassis 1, an electric slide rail 3 fixedly connected to the top of the carrier plate 2, an angle adjustment mechanism 4 fixedly connected to the front side of the electric slide rail 3, and a metering mechanism 5 fixedly connected to the top of the carrier plate 2. The angle adjustment mechanism 4 includes an adjustment box 41, which provides installation space and protection for internal angle adjustment components. The rear side of the adjustment box 41 is slidably connected to the front side of the electric slide rail 3, and the electric slide rail 3 can provide adjustment... The junction box 41 provides a power source to realize the movement of the XYZ axes. The top of the adjustment box 41 is fixedly connected to a motor 42, which is the power source for angle adjustment. The drive end of the motor 42 is fixedly connected to an active plate 43, which receives the force from the motor 42 to rotate. The bottom of the active plate 43 is rotatably connected to a driven plate 44, which receives the force from the active plate 43 to move synchronously. Inside the adjustment box 41, a sector-shaped gear disk 45 is rotatably connected, which receives the force from the driven plate 44 to reciprocate. Specifically, a carrier plate is installed on the top of the chassis, and an electric slide rail, an angle adjustment mechanism, and a quantitative mechanism are located on the top of the carrier plate. The angle adjustment mechanism includes an adjustment box, which is connected to the electric slide rail at the rear to realize the movement of the XYZ axes. The top motor drives the active plate to rotate, and the active plate drives the driven plate. The sector-shaped gear plate inside the adjustment box reciprocates under the action of the driven plate. This mechanism can realize the adjustment of the probe angle, providing convenience for inspecting steel structures at different positions and angles.

[0020] Reference Figures 2 to 4 Limiting components 46 are fixedly connected to the left and right sides of the sector-shaped gear disk 45, respectively. A gear 47 is rotatably connected inside the adjusting box 41. The gear 47 receives force from the sector-shaped gear disk 45 to rotate, thereby driving the probe 48 at the bottom to rotate in a sector shape, completing a 60-degree angle adjustment, which can maximize the detection of flaws in the steel. The probe 48 is fixedly connected to the bottom of the gear 47 and is used for flaw detection of the steel structure. The limiting components 46 include a driven block 4601, which receives force from the sector-shaped gear disk 45 to rotate in a sector shape, completing a 60-degree angle adjustment, maximizing the detection of flaws in the steel. The force of the toothed disc 45 slides synchronously. The left and right sides of the driven plate 44 are fixedly connected to the adjacent sides of the two driven blocks 4601 respectively. The driven blocks 4601 can limit and guide the driven plate 44. A spring 4602 is fixedly connected to the right side of one of the driven blocks 4601. The spring 4602 has an elastic function and provides elastic support for the driven block 4601. The inside of the adjusting box 41 is provided with a driven groove 4603, which provides limit and guide for the driven block 4601. Specifically, limiting components are provided on the left and right sides of the sector-shaped gear disk. The gear inside the adjustment box meshes with the sector-shaped gear disk. The probe is connected to the bottom of the gear. The sector-shaped gear disk is driven by force to rotate the gear, so that the probe rotates in a 60-degree sector shape, expanding the flaw detection range. The driven block is connected to the driven plate. One side of the driven block abuts against the inner wall of the adjustment box through a spring. The driven groove provides sliding limit and guidance for the driven block, ensuring stable transmission when the sector-shaped gear disk reciprocates, and ensuring the accuracy and reliability of the probe angle adjustment.

[0021] Reference Figure 2 , Figure 5 and Figure 6 The metering mechanism 5 includes a metering box 51, which provides installation space and protection for the internal metering components. The bottom of the metering box 51 is fixedly connected to the top of the carrier plate 2, which provides fixation and support for the metering box 51. A fixing plate 52 is fixedly connected to the inner wall of the metering box 51. The fixing plate 52 allows the coupling agent to flow out through a through hole 54. A metering plate 53 is rotatably connected to the bottom of the fixing plate 52. The through holes 54 inside the metering plate 53 are of three different sizes to adjust the flow rate. Through holes 54 are also provided inside the metering plate 53 and the fixing plate 52. The through holes 54 in the fixing plate 52 are of only one size. The metering box 51 has three different sized through holes 54. An adjustment component 55 is fixedly connected to the right side of the metering plate 53. A limit groove 56 is opened inside the metering box 51. The limit groove 56 provides a limiting and guiding function for the spring 57. The spring 57 is fixedly connected to the front inner wall of the limit groove 56. The spring 57 has an elastic function and provides elastic support for its lever 5503. A linkage groove 58 is opened inside the metering box 51. The linkage groove 58 is used to cooperate with the linkage block 5504 to complete the limiting of the lever 5503, and then complete the limiting and fixing of the metering plate 53. The adjustment component 55 includes a connecting block 5501. The connecting block 5501 provides a fixing and supporting function for the spring 5502. Specifically, the fixed plate has a single through hole, while the metering plate contains three different sized through holes to adjust the couplant flow rate. The connecting block is connected to the lever block via spring two, and one side of the lever block abuts against the limiting groove via spring three. The linkage groove and the linkage block cooperate to limit the metering plate. This mechanism allows for precise flow rate adjustment and fixation by rotating the metering plate to switch through hole specifications, combined with the spring assembly, meeting the quantitative supply requirements of couplant in different testing scenarios.

[0022] The left side of the connecting block 5501 is fixedly connected to the right side of the metering plate 53. The metering plate 53 provides fixation and support for the connecting block 5501. A second spring 5502 is fixedly connected to the inner left side of the connecting block 5501. The second spring 5502 has an elastic function and provides elastic support for its lever block 5503. The right side of the second spring 5502 is fixedly connected to the lever block 5503. Before the device is used, by pulling out the lever block 5503, the linkage block 5504 is disengaged from the interior of the linkage groove 58, and the second spring 5502 is stretched. Rotating the lever 5503 causes the metering plate 53 to rotate, thereby aligning the corresponding through hole 54 inside the metering plate 53 with the through hole 54 inside the fixing plate 52. After adjustment, by releasing the lever 5503, the elastic reset of the spring 5502 causes the linkage block 5504 to engage with the corresponding linkage groove 58, thus completing the metering. Subsequently, the top of the lever 5503 is fixedly connected to the linkage block 5504, which engages with the linkage groove 58 to limit the metering plate 53. Specifically, during use, first pull the lever outward to stretch the second spring so that the linkage block disengages from the linkage groove. Then rotate the metering plate to switch between different specifications of through holes and the through holes of the fixed plate. After adjustment, release the lever, and the second spring will elastically reset, causing the linkage block to lock into the linkage groove, thus achieving the limiting and fixing of the metering plate. This structure, through the spring linkage and the cooperation of the slot, can conveniently complete the switching and locking of the coupling agent flow level, ensuring the accuracy and stability of the metering supply.

[0023] Reference Figure 1 , Figure 2 and Figure 5 A liquid storage tank 6 is fixedly connected to the top of the carrier plate 2 to provide a space for the internal coupling agent. A power pump 7 is fixedly connected to the top of the carrier plate 2. The power pump 7 is used to extract the coupling agent inside the liquid storage tank 6. A connecting block 8 is fixedly connected to the rear side of the carrier plate 2. The connecting block 8 is used to uniformly spray the metered coupling agent onto the surface. The outside of the gear 47 is meshed with the front side of the sector gear disk 45. The gear 47 receives the force from the sector gear disk 45 and rotates back and forth, thereby driving the probe 48 at the bottom to rotate back and forth in a sector shape of 60 degrees, which can maximize the detection range. The right side of one of the springs 4602 is fixedly connected to the right inner wall of one of the driven grooves 4603. The driven groove 4603 provides fixation and support for the spring 4602. Specifically, the left side of the connecting block is fixed to the right side of the metering plate. Its inner wall is connected to a lever block via a spring. A linkage block is located at the top of the lever block. First, the lever block is pulled outwards, stretching the spring and disengaging the linkage block from the linkage groove. Rotating the metering plate allows for switching between different through-hole sizes that align with the through-holes on the fixed plate. After adjustment, releasing the lever block causes the spring to elastically return to its original position, engaging the linkage block in the linkage groove, thus fixing the metering plate. This structure, through spring linkage and the locking groove, facilitates convenient switching and locking of the coupling agent flow rate, ensuring the accuracy and stability of the metering supply.

[0024] The external of the driven block 4601 is slidably connected to the inside of the driven groove 4603. The driven groove 4603 provides a limiting and guiding function for the driven block 4601. The external of the metering plate 53 is in contact with the inner wall of the metering mechanism 5. Through close contact, the coupling agent can be prevented from flowing down through the gap. The external of the push block 5503 is slidably connected to the inside of the limiting groove 56. The limiting groove 56 provides a limiting and guiding function for the push block 5503. The external of the linkage block 5504 is in contact with the inner wall of the linkage groove 58. The linkage groove 58 provides a limiting and guiding function for the linkage block 5504. The external of the push block 5503 is slidably connected to the inside of the connecting block 5501. The connecting block 5501 provides a limiting and guiding function for the push block 5503. Specifically, the driven groove provides a limiting and guiding function for the driven block. The outer side of the metering plate is in close contact with the inner wall of the metering mechanism to prevent the coupling agent from flowing out from the gap. The outer side of the push block slides into the limiting groove and the inner side of the connecting block. The limiting groove and the connecting block provide limiting and guiding functions for the push block. The outer side of the linkage block is in contact with the inner wall of the linkage groove. The linkage groove provides a limiting and guiding function for the linkage block. All components cooperate with the groove structure through sliding connections to ensure the stability and accuracy of the mechanism during operation, avoid component shaking or coupling agent leakage, and ensure the reliable realization of the detection function of the flaw detection device.

[0025] Working principle: When operating the display panel 7, the user can adjust its display angle and position as needed. By rotating the rotating rod 44 inside the damping shaft 43, the rotating rod 46 inside the damping shaft 45, and the fixing block 48 inside the damping shaft 47, the display panel 7 can move horizontally and change its angle. Furthermore, by rotating the threaded column 493, its outer surface slides out of the limiting groove 494, allowing the mounting plate 5 to rotate within the fixing block 48, thus adjusting the display angle of the display panel 7. After adjustment, by rotating the threaded column 493 in the opposite direction, the threaded column 493... The outer part slides back into the inner part of the limiting groove 494, thereby locking the position of the mounting plate 5 and fixing the angle of the display plate 7. At the same time, the operator can rotate the rotating cylinder 42 as needed, so that the rotating cylinder 42 drives the sliding cylinder 41 to slide outside the fixed rod 2 or the sliding rod 3, thereby adjusting the display height of the display plate 7. The sliding rod 3 can also be adjusted to slide inside the fixed rod 2 according to the different sizes of the display plate 7. First, by rotating the threaded column 495, the restriction on the position of the sliding rod 3 is removed, and then the sliding rod 3 can be controlled to slide inside the fixed rod 2 to adjust the overall position of the display plate 7 and meet the display needs of multiple display plates 7.

[0026] Operators can quickly disassemble and assemble display panel 7. By pulling the lever 65, the limiting block 62 slides inside the mounting plate 5, releasing the restriction on the sliding rod 61. At this point, the sliding rod 61 can slide out from inside the mounting plate 5, completing the disassembly of display panel 7. When installing display panel 7, by pulling the lever 65, the lever 65 slides inside the mounting plate 5, allowing the external sliding rod 61 of display panel 7 to slide into the mounting plate 5. Then, by releasing the control of the lever 65, the spring 64 automatically pushes the external limiting block 62 into the internal sliding rod 61, completing the assembly of display panel 7. The quick disassembly and assembly of display panel 7 facilitates cleaning and maintenance.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ultrasonic testing device for steel structures, comprising a base plate (1), characterized in that: The top of the chassis (1) is fixedly connected to a carrier plate (2), the top of the carrier plate (2) is fixedly connected to an electric slide rail (3), the front side of the electric slide rail (3) is fixedly connected to an angle adjustment mechanism (4), and the top of the carrier plate (2) is fixedly connected to a metering mechanism (5). The angle adjustment mechanism (4) includes an adjustment box (41), the rear side of which is slidably connected to the front side of the electric slide rail (3). A motor (42) is fixedly connected to the top of the adjustment box (41), and an active plate (43) is fixedly connected to the drive end of the motor (42). A driven plate (44) is rotatably connected to the bottom of the active plate (43). A sector-shaped gear disk (45) is rotatably connected inside the adjustment box (41). Limiting components (46) are fixedly connected to the left and right sides of the sector-shaped gear disk (45). A gear (47) is rotatably connected inside the adjustment box (41), and a probe (48) is fixedly connected to the bottom of the gear (47).

2. The apparatus for ultrasonic inspection of a steel structure according to claim 1, characterized in that: The limiting component (46) includes a driven block (4601), and the left and right sides of the driven plate (44) are fixedly connected to the adjacent sides of the two driven blocks (4601), and a spring (4602) is fixedly connected to the right side of one of the driven blocks (4601). The inside of the adjusting box (41) is provided with a driven groove (4603).

3. The apparatus for ultrasonic inspection of a steel structure according to claim 1, characterized in that: The quantitative mechanism (5) includes a quantitative box (51), the bottom of which is fixedly connected to the top of the carrier plate (2). A fixing plate (52) is fixedly connected to the inner wall of the quantitative box (51). A quantitative plate (53) is rotatably connected to the bottom of the fixing plate (52). Through holes (54) are respectively opened in the interior of the quantitative plate (53) and the interior of the fixing plate (52). An adjustment component (55) is fixedly connected to the right side of the quantitative plate (53). A limiting groove (56) is opened in the interior of the quantitative box (51). A spring (57) is fixedly connected to the front inner wall of the limiting groove (56). A linkage groove (58) is opened in the interior of the quantitative box (51).

4. The apparatus according to claim 3, wherein: The adjustment component (55) includes a connecting block (5501), the left side of which is fixedly connected to the right side of the metering plate (53), a second spring (5502) is fixedly connected to the inner wall of the left side of the connecting block (5501), a lever (5503) is fixedly connected to the right side of the second spring (5502), and a linkage block (5504) is fixedly connected to the top of the lever (5503).

5. The apparatus according to claim 1, wherein: A liquid storage tank (6) is fixedly connected to the top of the carrier plate (2), a power pump (7) is fixedly connected to the top of the carrier plate (2), and a connecting block (8) is fixedly connected to the rear side of the carrier plate (2).

6. The apparatus for ultrasonic inspection of a steel structure according to claim 2, characterized in that: The gear (47) is meshed with the front side of the sector gear (45), and the right side of one of the springs (4602) is fixedly connected to the right inner wall of one of the driven grooves (4603). The external side of the driven block (4601) is slidably connected to the inside of the driven groove (4603).

7. The apparatus according to claim 4, wherein: The outer side of the metering plate (53) is in contact with the inner wall of the metering mechanism (5), and the outer side of the push block (5503) is slidably connected to the inside of the limiting groove (56).

8. The apparatus according to claim 4, wherein: The outside of the linkage block (5504) is in contact with the inner wall of the linkage groove (58), and the outside of the toggle block (5503) is slidably connected to the inside of the connecting block (5501).

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