Weld defect detection device

Abstract

The utility model discloses a weld defect detection device, and relates to the technical field of weld detection. The device comprises an ultrasonic detection device, a transmission line is fixedly connected to one side of the ultrasonic detection device, a probe is fixedly connected to the end, away from the ultrasonic detection device, of the transmission line, a telescopic mechanism is arranged on one side of the probe, and a protection mechanism is slidably arranged on the outer side of the probe; when the telescopic rods slide to a proper position and stop moving, bolts are in threaded connection with threaded grooves, so that the positions of the telescopic rods are fixed, at the moment, a worker feeds the telescopic rods into a narrow space through a handle to be aligned with a welding seam, detection of the welding seam in the narrow space is completed, and the length can be adjusted through the telescopic rods; therefore, the device is suitable for narrow spaces with different depths or heights, so that weld joints with various sizes and positions can be detected.

Description

Technical Field

[0001] The present application relates to the technical field of weld detection, and in particular to a weld defect detection device. Background Art

[0002] Steel structures are widely used in industry and construction due to their light weight, large bearing capacity, good elastic-plastic properties, and good seismic performance. Before being put into use, workers are required to inspect the welds of the steel structures. Among them, ultrasonic detection devices have the advantages of fast detection speed and accurate positioning, and are widely used in the detection of steel structure welds.

[0003] The weld detection device mentioned in the existing Chinese public patent (authorization announcement number: CN214473301U) can set the detection probe on the mounting plate by setting a mounting plate, and then set the mounting plate on the pipeline to be detected and movable by setting a fixing part, so that the operator no longer needs to hold the detection device to detect the pipeline, thereby reducing the workload. A slider is set on the fixing part and a slide groove is set on the bottom surface of the mounting plate, so that the fixing plate is fixed on the fixing part.

[0004] In the process of using ultrasonic testing to inspect the quality of welds, workers are mostly required to hold a probe and aim it at the weld for inspection. Although this is simple and easy, if the weld is located in a narrow space, it may be inconvenient for workers to place the ultrasonic probe on the weld, which is not conducive to the inspection work. Utility Model Content

[0005] The purpose of the present application is to provide a weld defect detection device to solve the problem that if the weld is located in a narrow space, it may be inconvenient for workers to place an ultrasonic probe on the weld.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] A weld defect detection device comprises an ultrasonic detection device, one side of the ultrasonic detection device is fixedly connected to a transmission line, an end of the transmission line away from the ultrasonic detection device is fixedly connected to a probe, one side of the probe is provided with a telescopic mechanism, and the outer side of the probe is slidably provided with a protective mechanism.

[0008] By adopting the above technical solution, the staff picks up the ultrasonic detection device and moves it to a suitable position, then the staff aims the probe at the weld, and the probe transmits the weld data to the ultrasonic detection device through the transmission line, and the display screen displays the weld data. The staff completes the detection by observing the data on the display screen, and the telescopic mechanism facilitates the detection of welds in narrow spaces, and the protective mechanism can protect the probe.

[0009] Furthermore, the telescopic mechanism includes a telescopic tube arranged on one side of the probe, a telescopic rod is slidably connected inside the telescopic tube, an end of the telescopic rod away from the telescopic tube is fixedly connected to a rotating seat, the rotating seat is rotatably connected to the probe, an end of the telescopic tube away from the telescopic rod is fixedly connected to a handle, and a plurality of metal protrusions are fixedly connected to the outer surface of the handle at equal intervals.

[0010] By adopting the above technical solution, the staff first lifts the handle to lift the telescopic tube and the telescopic rod, then slides the telescopic rod inside the telescopic tube, and then uses the handle to send the telescopic rod and the telescopic rod into the narrow space to align with the weld, thereby completing the inspection of the weld in the narrow space.

[0011] Furthermore, a bolt is slidably connected to the outer surface of the telescopic cylinder, a plurality of thread grooves are equidistantly formed on the outer surface of the telescopic rod, and the bolt is threadedly connected to the thread grooves.

[0012] By adopting the above technical solution, the position of the telescopic rod is fixed by threading the bolts and the thread grooves.

[0013] Furthermore, a limiting groove is provided on one side of the rotating seat, a fastener is fixedly connected to one side of the probe, the fastener consists of a threaded rod and a nut, and the fastener is slidably connected to the limiting groove.

[0014] By adopting the above technical solution, when the probe is rotated to a suitable angle, the angle of the probe can be fixed by the fastener, thereby further improving the flexibility of detection.

[0015] Furthermore, the protection mechanism comprises rotating blocks rotatably connected to both sides of the telescopic rod, a connecting block is fixedly connected between the rotating blocks on both sides, and a protection block is slidably provided on one side of the connecting block.

[0016] By adopting the above technical solution, the protective block is driven to move to one side of the probe by rotating the rotating block and resist the probe, thereby protecting the probe.

[0017] Furthermore, a plurality of springs are fixedly connected between the protection block and the connection block at equal distances.

[0018] By adopting the above technical solution, when the probe is vibrated, the protective block can still be closely attached to the probe.

[0019] Furthermore, a protective pad is fixedly connected to a side of the protective block away from the spring.

[0020] By adopting the above technical solution, the protective block can better fit the probe surface.

[0021] Furthermore, sliding blocks are fixedly connected to both sides of the protection block, and sliding grooves are provided on the sides of the rotating blocks on both sides that are close to each other, and the sliding blocks are slidably connected to the sliding grooves.

[0022] By adopting the above technical solution, the protection block can maintain the correct trajectory when moving.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. In the present application, when inspecting welds in narrow spaces, the length of the telescopic rod can be adjusted to adapt to narrow spaces of different depths or heights, thereby being able to inspect welds of various sizes and positions, which not only improves the applicability and flexibility of the inspection, but also improves the accuracy of the inspection.

[0025] 2. In the present application, after the weld inspection is completed, the protective block is moved to one side of the probe and resists the probe, thereby protecting the probe. During the transportation of the probe, the protective block can reduce the accidental collision of the probe with other objects or structures, thereby extending the service life of the probe, reducing the frequency of equipment repair and replacement, and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the first three-dimensional structure of the detection device in this application;

[0027] Figure 2 It is a schematic diagram of the second three-dimensional structure of the detection device in this application;

[0028] Figure 3 This application Figure 2 The enlarged structural diagram at A in the middle;

[0029] Figure 4 It is a schematic diagram of a partial three-dimensional structure of the detection device in this application.

[0030] Description of reference numerals:

[0031] 1. Ultrasonic detection device; 2. Transmission line; 3. Probe; 4. Telescopic tube; 5. Telescopic rod; 6. Rotating seat; 7. Handle; 8. Metal protrusion; 9. Bolt; 10. Thread groove; 11. Limit groove; 12. Fastener; 13. Rotating block; 14. Connecting block; 15. Protective block; 16. Spring; 17. Protective pad; 18. Slide groove. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The embodiments of the present application disclose a weld defect detection device.

[0034] Reference Figure 1 and Figure 2 The weld defect detection device includes an ultrasonic detection device 1, a transmission line 2 is fixedly connected to one side of the ultrasonic detection device 1, a probe 3 is fixedly connected to the end of the transmission line 2 away from the ultrasonic detection device 1, a telescopic mechanism is arranged on one side of the probe 3, and a protective mechanism is slidingly arranged on the outer side of the probe 3.

[0035] When inspecting a weld, the worker first picks up the ultrasonic detection device 1 and moves it to a suitable position. Then the worker aims the probe 3 at the weld. The probe 3 transmits the data of the weld to the ultrasonic detection device 1 through the transmission line 2. The display screen displays the data of the weld. The worker completes the inspection by observing the data on the display screen. The probe 3 can be sent into a narrow space through the telescopic mechanism to facilitate the inspection of welds in the narrow space. The protective mechanism can protect the probe 3 to reduce the risk of damage to the probe 3 due to collision with other objects during transportation.

[0036] Reference Figure 1 , Figure 2 and Figure 3 The telescopic mechanism includes a telescopic tube 4 arranged on one side of the probe 3, a telescopic rod 5 is slidably connected inside the telescopic tube 4, an end of the telescopic rod 5 away from the telescopic tube 4 is fixedly connected to a rotating seat 6, the rotating seat 6 is rotatably connected to the probe 3, and an end of the telescopic tube 4 away from the telescopic rod 5 is fixedly connected to a handle 7, and a plurality of metal protrusions 8 are fixedly connected to the outer surface of the handle 7 at equal intervals.

[0037] The outer surface of the telescopic tube 4 is slidably connected with a bolt 9 , and the outer surface of the telescopic rod 5 is provided with a plurality of thread grooves 10 at equal intervals, and the bolt 9 is threadedly connected with the thread grooves 10 .

[0038] In addition, a limiting groove 11 is provided on one side of the rotating seat 6 , and a fastener 12 is fixedly connected to one side of the probe 3 . The fastener 12 is composed of a threaded rod and a nut, and the fastener 12 is slidably connected to the limiting groove 11 .

[0039] When inspecting the weld in a narrow space, first move the telescopic rod 5 inside the telescopic tube 4, stop moving when the telescopic rod 5 slides to a suitable position, and then threadably connect the bolt 9 with the thread groove 10 to fix the position of the telescopic rod 5. At this time, the staff uses the handle 7 to send the telescopic rod 5 into the narrow space and align it with the weld, thereby completing the inspection of the weld in the narrow space. The length of the telescopic rod 5 can be adjusted to adapt to narrow spaces of different depths or heights, so that welds of various sizes and positions can be inspected, which not only improves the applicability and flexibility of the inspection, but also improves the accuracy of the inspection. After the length adjustment of the telescopic rod 5 is completed, the staff rotates the probe 3 to make the fastener 12 move inside the limit groove 11. When the probe 3 is rotated to a suitable angle, the angle of the probe 3 can be fixed by the fastener 12, further improving the flexibility of the inspection.

[0040] Reference Figure 1 , Figure 2 and Figure 4 The protection mechanism includes a rotating block 13 rotatably connected to both sides of the telescopic rod 5, a connecting block 14 is fixedly connected between the rotating blocks 13 on both sides, and a protection block 15 is slidably provided on one side of the connecting block 14.

[0041] Among them, a plurality of springs 16 are fixedly connected between the protection block 15 and the connection block 14 at equal distances.

[0042] In addition, a protection pad 17 is fixedly connected to a side of the protection block 15 away from the spring 16 .

[0043] In addition, sliding blocks are fixedly connected to both sides of the protection block 15 , and sliding grooves 18 are provided on the sides of the rotating blocks 13 on both sides that are close to each other, and the sliding blocks are slidably connected to the sliding grooves 18 .

[0044] After the weld inspection is completed, the staff first retracts the telescopic rod 5, and then rotates the rotating block 13. The rotation of the rotating block 13 drives the connecting block 14 to move, and the movement of the connecting block 14 drives the protective block 15 to rotate, so that the protective block 15 moves to one side of the probe 3 and contacts the probe 3, thereby protecting the probe 3. Therefore, during the transportation of the probe 3, the protective block 15 can reduce the accidental collision of the probe 3 with other objects or structures, thereby extending the service life of the probe 3, reducing the frequency of equipment maintenance and replacement, and reducing maintenance costs. When the protective block 15 contacts the probe 3, the protective block 15 is subjected to force to squeeze the spring 16, causing the spring 16 to contract and generate elastic potential energy. The elastic potential energy of the spring 16 is released, so that when the probe 3 is vibrated, the protective block 15 can still be close to the probe 3. The protective pad 17 is set to rubber, and the rubber has a certain softness and can better fit the surface of the probe 3. When the protective block 15 moves, the slider and the slide groove 18 provide the protective block 15 with additional support points, so that the protective block 15 maintains the correct trajectory when moving.

[0045] Working principle: the staff picks up the ultrasonic detection device 1 and moves it to a suitable position, and then the staff aligns the probe 3 with the weld. The probe 3 now transmits the data of the weld to the ultrasonic detection device 1 through the transmission line 2, and the display screen will display the data of the weld. The staff completes the detection by observing the data on the display screen. The probe 3 can be sent into a narrow space through the telescopic mechanism, which is convenient for detecting the weld in the narrow space. The staff picks up the handle 7 so that the telescopic tube 4 and the telescopic rod 5 are picked up, and then the staff slides the telescopic rod 5 inside the telescopic tube 4, and stops moving when it slides to a suitable position, and then threadedly connects the bolt 9 with the thread groove 10, thereby fixing the position of the telescopic rod 5. At this time, the staff uses the handle 7 to send the telescopic rod 5 and the telescopic rod 5 into the narrow space and align them with the weld, thereby completing the detection of the weld in the narrow space.

[0046] The staff rotates the probe 3 so that the fastener 12 moves inside the limit groove 11. When the probe 3 is rotated to a suitable angle, the angle of the probe 3 can be fixed by the fastener 12, further improving the flexibility of detection. By rotating the rotating block 13, the rotating block 13 drives the connecting block 14 to move, and the connecting block 14 drives the protective block 15 to rotate, so that the protective block 15 moves to one side of the probe 3 and contacts the probe 3, thereby protecting the probe 3.

Claims

1. A weld defect detection device, comprising an ultrasonic detection device (1), characterized in that: A transmission line (2) is fixedly connected to one side of the ultrasonic detection device (1), a probe (3) is fixedly connected to one end of the transmission line (2) away from the ultrasonic detection device (1), a telescopic mechanism is provided on one side of the probe (3), and a protective mechanism is slidably provided on the outer side of the probe (3).

2. The weld defect detection device according to claim 1, characterized in that: The telescopic mechanism comprises a telescopic cylinder (4) arranged on one side of the probe (3); a telescopic rod (5) is slidably connected inside the telescopic cylinder (4); an end of the telescopic rod (5) away from the telescopic cylinder (4) is fixedly connected to a rotating seat (6); the rotating seat (6) is rotatably connected to the probe (3); an end of the telescopic cylinder (4) away from the telescopic rod (5) is fixedly connected to a handle (7); and a plurality of metal protrusions (8) are fixedly connected to the outer surface of the handle (7) at equal intervals.

3. The weld defect detection device according to claim 2, characterized in that: The outer surface of the telescopic cylinder (4) is slidably connected with a bolt (9), the outer surface of the telescopic rod (5) is provided with a plurality of thread grooves (10) at equal intervals, and the bolts (9) are threadedly connected to the thread grooves (10).

4. The weld defect detection device according to claim 2, characterized in that: A limiting groove (11) is provided on one side of the rotating seat (6), and a fastener (12) is fixedly connected to one side of the probe (3), wherein the fastener (12) is composed of a threaded rod and a nut, and the fastener (12) is slidably connected to the limiting groove (11).

5. The weld defect detection device according to claim 1, characterized in that: The protection mechanism comprises a rotating block (13) rotatably connected to two sides of the telescopic rod (5), a connecting block (14) is fixedly connected between the rotating blocks (13) on both sides, and a protection block (15) is slidably provided on one side of the connecting block (14).

6. The weld defect detection device according to claim 5, characterized in that: A plurality of springs (16) are fixedly connected between the protection block (15) and the connection block (14) at equal intervals.

7. The weld defect detection device according to claim 5, characterized in that: A protective pad (17) is fixedly connected to a side of the protective block (15) away from the spring (16).

8. The weld defect detection device according to claim 5, characterized in that: Slide blocks are fixedly connected to both sides of the protection block (15), and sliding grooves (18) are provided on the sides of the rotating blocks (13) on both sides that are close to each other, and the slide blocks are slidably connected to the sliding grooves (18).

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