Flaw detection device for steel structure

Abstract

The utility model provides a flaw detection device for a steel structure, and belongs to the technical field of steel structure detection. Comprising a placing plate, sliding grooves are formed in the periphery of the inner side of the placing plate, sliding seats are slidably connected to the inner sides of the sliding grooves, clamping plates are fixedly connected to the tops of the sliding seats, moving frames are fixedly connected to the top of the placing plate, moving seats are slidably connected to the inner sides of the moving frames, and air cylinders are fixedly connected to the bottoms of the moving seats; a main frame is fixedly connected to the bottom of the air cylinder, and outer frames are slidably connected to the two ends of the main frame. By arranging the main frame and the outer frame, the device can shield the ultrasonic detector through the main frame and the outer frame, ultrasonic leakage is avoided, the detection effect of the device is improved, the influence on the outside is avoided, and the device can be adjusted according to the width of a steel structure through the slidable design of the outer frame. And all positions of the steel structure can be conveniently detected, and the practicability of the device is improved.

Description

Technical Field

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

[0002] Steel structures are structures made of steel materials and are one of the main types of building structures. They are mainly composed of steel beams, steel columns, steel trusses and other components made of steel sections and steel plates. Because quality and safety issues are involved, steel structures need to be inspected. Therefore, a testing device for non-destructive testing of steel structures is particularly important.

[0003] Patent CN214374499U discloses a testing device for non-destructive testing of steel structures, including a mounting base plate; a base plate rotating shaft is fixedly connected to the bottom center of the mounting base plate, and a fixed plate disc is fixedly connected to the bottom of the base plate rotating shaft; a limit strip is fixedly connected to the top of the mounting base plate by bolts; a clamping device is provided on the top of the mounting base plate; a fixing block is fixedly connected to the top of the mounting base plate by bolts, and the fixing block has two connecting grooves, each of which is fixedly fitted with an electric push rod; a slide rail bracket is fixedly connected to each of the two electric push rods, and a sliding rail is fixedly connected to each of the two slide rail brackets.

[0004] In the above case, the steel structure was fixed to the mounting base plate, and then the scanning device was lowered to perform ultrasonic scanning detection. However, there was no structure to block the ultrasonic scanner, resulting in poor ultrasonic detection effect and easy interference with the staff, which reduced the practicality of the device.

[0005] Therefore, this utility model provides a flaw detection device for steel structures to meet the requirements. Utility Model Content

[0006] The purpose of this invention is to provide a flaw detection device for steel structures to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a flaw detection device for steel structures, comprising a placement plate, with grooves formed around the inner perimeter of the placement plate, a sliding seat slidably connected to the inner side of the grooves, a clamping plate fixedly connected to the top of the sliding seat, a moving frame fixedly connected to the top of the placement plate, a moving seat slidably connected to the inner side of the moving frame, a cylinder fixedly connected to the bottom of the moving seat, a main frame fixedly connected to the bottom of the cylinder, an outer frame slidably connected to both ends of the main frame, a rotating frame rotatably connected to one side of the main frame, internal threaded rings fixedly connected to the inner sides of both ends of the rotating frame, a threaded rod fixedly connected to the side of the outer frame near the rotating frame, the threaded rod being threadedly connected to the inner side of the corresponding internal threaded ring, a toothed ring fixedly connected to the middle of the outer side of the rotating frame, an ultrasonic detector for detecting steel structures fixedly connected to the top of the inner cavity of the main frame, the same driving rod fixedly connected to the bottom of the two sliding seats on the same side, a bidirectional screw rotatably connected to the bottom of the placement plate, and two driving rods respectively threadedly connected to the two ends of the outer side of the bidirectional screw.

[0008] In a preferred embodiment, the bottom of the placement plate is fixedly connected to the four sides with support legs, the top of the transfer frame is rotatably connected to the inner side with a lead screw, and the outer side of the transfer frame is fixedly connected to a No. 2 motor.

[0009] In a preferred embodiment, one end of the lead screw passes through the shift bracket and is fixedly connected to the output end of the second motor, and the shift seat is threadedly connected to the outside of the lead screw.

[0010] In one preferred embodiment, a No. 3 motor is fixedly connected to the bottom of the placement plate, and its output end is fixedly connected to a bidirectional screw.

[0011] In a preferred embodiment, the top two ends of the main frame are fixedly connected to side rods, and the two side rods are slidably connected to the two ends of the bottom of the sliding seat.

[0012] In a preferred embodiment, a No. 1 motor is fixedly connected to the side of the main frame near the rotating frame, and a drive gear is fixedly connected to its output end.

[0013] In a preferred embodiment, the drive gear meshes with the gear ring, and the ends of the two threaded rods closest to each other are fixedly connected with limit rings.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model, by setting a main frame and an outer frame, allows the device to shield the ultrasonic detector through the main frame and the outer frame, preventing ultrasonic leakage, improving its detection effect, and avoiding interference with the outside world. Furthermore, the sliding design of the outer frame allows it to be adjusted according to the width of the steel structure, facilitating detection at all positions of the steel structure and improving the practicality of the device.

[0016] This utility model, by setting up a rotating frame, an inner helical ring, and threaded rods, enables the device to drive the rotating frame to rotate through the cooperation of the drive gear and the gear ring, and drives the threaded rods on both sides through the inner helical ring, so that they drive the outer frame on both sides to move synchronously, thereby improving the working stability of the device. Attached Figure Description

[0017] Figure 1 This is a first-view three-dimensional structural diagram of a flaw detection and inspection device for steel structures.

[0018] Figure 2 This is a first and second perspective three-dimensional structural diagram of a flaw detection device for steel structures.

[0019] Figure 3 A schematic diagram of the three-dimensional structure of the main frame and the outer frame;

[0020] Figure 4 for Figure 3 A magnified three-dimensional structural diagram at point A.

[0021] In the diagram: 1. Placement plate; 2. Slide groove; 3. Slide seat; 4. Clamping plate; 5. Shifting frame; 6. Shifting seat; 7. Cylinder; 8. Main frame; 9. Outer frame; 10. Rotating frame; 11. Inner threaded ring; 12. Threaded rod; 13. Gear ring; 14. Motor No. 1; 15. Drive gear; 16. Ultrasonic detector; 17. Drive rod; 18. Bidirectional screw. Detailed Implementation

[0022] The present invention will be further described below with reference to the embodiments.

[0023] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention; the conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the concept of the present invention are all within the scope of protection claimed by the present invention.

[0024] Please see Figures 1-4This utility model provides a flaw detection device for steel structures, including a placement plate 1. Slide grooves 2 are formed around the inner perimeter of the placement plate 1. A slide block 3 is slidably connected to the inner side of the slide groove 2. A clamping plate 4 is fixedly connected to the top of the slide block 3. A shift frame 5 is fixedly connected to the top of the placement plate 1. A shift block 6 is slidably connected to the inner side of the shift frame 5. A cylinder 7 is fixedly connected to the bottom of the shift block 6. A main frame 8 is fixedly connected to the bottom of the cylinder 7. The bottoms of two slide blocks 3 on the same side are fixedly connected to the same drive rod 17. A bidirectional screw 18 is rotatably connected to the bottom of the placement plate 1. Two drive rods 17 are threaded to the two outer ends of the bidirectional screw 18. A No. 3 motor is fixedly connected to the bottom of the placement plate 1, and its output end is fixedly connected to the bidirectional screw 18. Side rods are fixedly connected to both ends of the top of the main frame 8, and the two side rods are slidably connected to the two ends of the bottom of the shift block 6.

[0025] The steel structure to be tested is placed on the placement plate 1. The No. 3 motor is started, which drives the bidirectional screw 18 to rotate. The drive rod 17 drives the slide block 3 to slide in the slide groove 2, causing the clamping plate 4 to move and fix the steel structure. The cylinder 7 is started to drive the main frame 8 to descend in the limit of the side rod, pressing down on the steel structure.

[0026] Please see Figures 1-4 The main frame 8 is slidably connected to the two ends of the outer frame 9. The main frame 8 is rotatably connected to the side of the rotating frame 10. The inner sides of the two ends of the rotating frame 10 are fixedly connected to the inner threads 11. The outer frame 9 is fixedly connected to the side of the rotating frame 10 near the rotating frame 10. The threaded rod 12 is threadedly connected to the inner side of the corresponding inner threads 11. The middle of the outer side of the rotating frame 10 is fixedly connected to the gear ring 13. The top of the inner cavity of the main frame 8 is fixedly connected to the ultrasonic detector 16 for detecting steel structures, which is model SDT170. The bottom of the placement plate 1 is fixedly connected to the four sides. The inner side of the top of the shift frame 5 is rotatably connected to the lead screw. The outer side of the shift frame 5 is fixedly connected to the second motor. The side of the main frame 8 near the rotating frame 10 is fixedly connected to the first motor 14. The output end of the first motor 14 is fixedly connected to the first motor 14. One end of the lead screw passes through the shift frame 5 and is fixedly connected to the output end of the second motor. The shift seat 6 is threadedly connected to the outer side of the lead screw. The drive gear 15 meshes with the gear ring 13. The ends of the two threaded rods 12 near each other are fixedly connected to the limit rings.

[0027] Start motor 14, which drives the rotating frame 10 and inner screw ring 11 to rotate through the meshing of drive gear 15 and gear ring 13. This causes the threaded rod 12 to move the outer frames 9 on both sides outward until the outer frames 9 cover one end of the steel structure. The ultrasonic detector 16 then starts working and emits ultrasonic waves to detect flaws in the steel structure. Start motor 2, which drives the lead screw, causing the shifter 6 to move the main frame 8 to complete the detection.

[0028] The main frame 8, serving as the carrier of the ultrasonic detector 16, not only stably supports the ultrasonic detector 16 but also provides it with a relatively enclosed working environment. The outer frame 9 further enhances this enclosure. By slidingly connecting to both sides of the main frame 8, it can be flexibly adjusted according to the actual width of the steel structure, ensuring that ultrasonic waves do not leak during the detection process. This not only effectively improves the ultrasonic detection effect, making the detection more accurate and reliable, but also avoids potential interference from ultrasonic waves to the surrounding environment. Through the sliding adjustment of the outer frame 9, the device can easily adapt to steel structures of different widths, achieving comprehensive detection of all positions on the steel structure. This not only improves detection efficiency but also ensures the comprehensiveness and accuracy of the detection results.

[0029] The rotating frame 10 not only serves to connect and support the inner threaded ring 11, but also achieves precise control of the rotational motion through close cooperation with the drive gear 15 and the gear ring 13. It can drive the threaded rod 12 to move linearly along its axis, causing the outer frame 9 to move synchronously. This not only achieves precise adjustment of the position of the outer frame 9, but also ensures that the two outer frames 9 can always move synchronously, thereby greatly improving the working stability of the device.

[0030] The working principle and usage process of this utility model are as follows: Place the steel structure to be tested on the placement plate 1, start the No. 3 motor to drive the bidirectional screw 18 to rotate, and drive the slide block 3 to slide in the slide groove 2 through the drive rod 17, so that the clamping plate 4 is displaced and fixed in place of the steel structure. Start the cylinder 7 to drive the main frame 8 to descend in the limit of the side rod and press down on the steel structure. Start the No. 1 motor 14, and drive the rotating frame 10 and the inner screw ring 11 to rotate through the meshing of the drive gear 15 and the gear ring 13, so that the threaded rod 12 drives the outer frames 9 on both sides to move outward until the outer frames 9 cover one end of the steel structure. The ultrasonic detector 16 starts to work and emits ultrasonic waves to detect flaws in the steel structure. Start the No. 2 motor to drive the lead screw, so that the moving seat 6 drives the main frame 8 to move, and the test is completed.

[0031] The ultrasonic detector 16 described above is prior art disclosed in this utility model and will not be described in detail here.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flaw detection device for steel structures, comprising a placement plate (1), characterized in that, The inner side of the placement plate (1) is provided with a sliding groove (2), the inner side of the sliding groove (2) is slidably connected with a sliding seat (3), the top of the sliding seat (3) is fixedly connected with a clamping plate (4), the top of the placement plate (1) is fixedly connected with a moving frame (5), the inner side of the moving frame (5) is slidably connected with a moving seat (6), the bottom of the moving seat (6) is fixedly connected with an air cylinder (7), the bottom of the air cylinder (7) is fixedly connected with a main frame (8), the both ends of the main frame (8) are slidably connected with an outer frame (9), one side of the main frame (8) is rotatably connected with a rotating frame (10), the inner side of the both ends of the rotating frame (10) is fixedly connected with an inner screw (11), one side of the outer frame (9) close to the rotating frame (10) is fixedly connected with a threaded rod (12), the threaded rod (12) is threadedly connected with the inner side of the corresponding inner screw (11), the outer side of the rotating frame (10) is fixedly connected with a gear ring (13) at the middle portion, the top of the inner cavity of the main frame (8) is fixedly connected with an ultrasonic detector (16) for detecting steel structure, the bottom of the same side of the two sliding seats (3) is fixedly connected with the same driving rod (17), the bottom of the placement plate (1) is rotatably connected with a bidirectional screw rod (18), the both ends of the outer side of the bidirectional screw rod (18) are respectively threadedly connected with the two driving rods (17).

2. The apparatus for detecting defects in a steel structure according to claim 1, wherein The bottom of the placement plate (1) is fixedly connected with a supporting leg, the inner side of the top end of the moving frame (5) is rotatably connected with a lead screw, the outer side of the moving frame (5) is fixedly connected with a No.2 motor.

3. The apparatus for detecting defects in a steel structure according to claim 2, wherein One end of the lead screw penetrates out of the moving frame (5) and is fixedly connected with the output end of the No.2 motor, the moving seat (6) is threadedly connected with the outer side of the lead screw.

4. The apparatus for detecting defects in a steel structure according to claim 1, wherein The bottom of the placement plate (1) is fixedly connected with a No.3 motor, and the output end of the No.3 motor is fixedly connected with the bidirectional screw rod (18).

5. The apparatus for detecting defects in a steel structure according to claim 1, wherein The both ends of the top of the main frame (8) are fixedly connected with a side rod, and the both ends of the bottom of the moving seat (6) are slidably connected with the two side rods.

6. The apparatus for detecting defects in a steel structure according to claim 1, wherein One side of the main frame (8) close to the rotating frame (10) is fixedly connected with a No.1 motor (14), and the output end of the No.1 motor (14) is fixedly connected with a driving gear (15).

7. The apparatus for detecting defects in a steel structure according to claim 6, wherein The driving gear (15) is engaged with the gear ring (13), and the both ends of the threaded rods (12) close to each other are fixedly connected with a limiting ring.

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