Rapid positioning device for pipeline welding seam defects

Abstract

The utility model discloses a pipeline weld defect quick positioning device, which relates to the technical field of pipeline weld detection and comprises a pipeline and a magnetic tape arranged on the excircle surface of the middle section of the pipeline, a probe is arranged on the excircle surface of the lower section of the pipeline, and a handle is arranged on the excircle surface of the upper section of the pipeline. The interior of the handle extends to the lower end to be slidably connected with a telescopic measuring rod, an observation hole is formed in the outer circular surface of the telescopic measuring rod in a penetrating mode, sliding grooves are formed in the inner circular surfaces of all sections of outer rods of the telescopic measuring rod, and limiting blocks are slidably connected into the sliding grooves. Compared with an existing common pipeline weld defect rapid positioning device, the pipeline weld defect rapid positioning device can rapidly and accurately read scales on a magnetic tape attracted to the outer portion of a pipeline through an observation hole, and a rotating frame in the auxiliary mechanism can be attached to the outer walls of pipelines of different sizes; a good follow-up effect can be achieved through stretching and retracting of the telescopic measuring rod and rolling of the attaching roller.

Description

Technical Field

[0001] This utility model relates to the field of pipeline weld inspection technology, specifically a rapid positioning device for pipeline weld defects. Background Technology

[0002] The basic principle of ultrasonic non-destructive testing is based on the discontinuity in a homogeneous material caused by non-uniform defects. This discontinuity creates interfaces of varying sizes within the material, resulting in inconsistent acoustic impedance. Ultrasonic waves are reflected at these interfaces (or "defects"), and ultrasonic flaw detection utilizes these reflected waves to determine the location and size of defects within the workpiece. When inspecting weld defects in pipelines, a probe connected to a specialized instrument is used to move and inspect the weld and its surrounding area. The operator must first attach a magnetic tape measure to the outer wall of the pipeline according to the coordinate axes marked on it. As the probe moves, the operator must quickly locate and read the scale on the magnetic tape measure.

[0003] Therefore, in view of this, we have studied and improved the existing structure to propose a rapid positioning device for pipeline weld defects. Utility Model Content

[0004] The purpose of this invention is to provide a device for rapid location of defects in pipe welds, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rapid positioning device for pipe weld defects, comprising a pipe and a magnetic tape measure disposed on the outer circular surface of the middle section of the pipe, a probe disposed on the outer circular surface of the lower section of the pipe, a handle disposed on the outer circular surface of the upper section of the pipe, a telescopic measuring rod slidably connected to the lower end of the handle, an observation hole being formed through the outer circular surface of the telescopic measuring rod, a sliding groove being formed on the inner circular surface of each section of the outer rod of the telescopic measuring rod, and a limit block being slidably connected inside the sliding groove, the limit block being fixedly connected to the upper outer circular surface of each section of the inner rod of the telescopic measuring rod, and an auxiliary mechanism being disposed outside the handle.

[0006] Preferably, the lower end of the telescopic measuring rod is provided with an iron block, which can be used as a counterweight.

[0007] Preferably, the upper surface of the probe is provided with a magnetic block, and the magnetic block can attract iron blocks.

[0008] Preferably, the auxiliary mechanism includes a rotating frame rotatably connected to the upper and lower ends of the handle, with a fitting roller rotatably connected to the inner surface of the rotating frame, and a return spring sleeve provided between the rotating frames. The two ends of the return spring sleeve are provided with hooks, and the hooks are fixedly connected to the surface of the rotating frame.

[0009] Preferably, the lower end of the rotating rod of the rotating frame is provided with a magnetic ring, and the magnetic ring can attract iron blocks.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model, through the arrangement of pipe, magnetic tape measure, probe, handle, telescopic measuring rod, observation hole, slide, auxiliary mechanism, rotating frame, fitting roller, return spring sleeve, hook, iron block, and magnetic block, allows this quick positioning device to quickly and accurately read the scale on the magnetic tape measure through the observation hole. The rotating frame in the auxiliary mechanism can fit the outer wall of pipes of different sizes, and the extension and retraction of the telescopic measuring rod and the rolling of the fitting roller can achieve a good follow-up effect. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0013] Figure 2 This utility model Figure 1 A partial three-dimensional structural diagram;

[0014] Figure 3 This utility model Figure 2 A partial three-dimensional structural diagram;

[0015] Figure 4 This utility model Figure 3 A magnified structural diagram of A in the middle;

[0016] Figure 5 This utility model Figure 2 A magnified structural diagram of B in the diagram;

[0017] Figure 6 This utility model Figure 2 A magnified structural diagram of B in the diagram.

[0018] In the diagram: 1. Pipe; 2. Magnetic measuring tape; 3. Probe; 4. Handle; 5. Telescopic measuring rod; 6. Observation hole; 7. Slide groove; 8. Auxiliary mechanism; 81. Rotating frame; 82. Adhesive roller; 83. Return spring sleeve; 84. Hook; 9. Iron block; 10. Magnetic block; 11. Magnetic ring. Detailed Implementation

[0019] 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.

[0020] like Figures 1-5 As shown, a rapid positioning device for pipe weld defects includes a pipe 1 and a magnetic tape measure 2 disposed on the outer circumference of the middle section of the pipe 1. A probe 3 is disposed on the outer circumference of the lower section of the pipe 1, and a handle 4 is disposed on the outer circumference of the upper section of the pipe 1. A telescopic measuring rod 5 is slidably connected to the lower end of the handle 4. An observation hole 6 is provided through the outer circumference of the telescopic measuring rod 5. A groove 7 is provided on the inner circumference of each section of the outer rod of the telescopic measuring rod 5, and a limit block is slidably connected inside the groove 7. The limit block is fixedly connected to the upper outer circumference of each section of the inner rod of the telescopic measuring rod 5. An auxiliary mechanism 8 is disposed outside the handle 4. The probe 3 needs to be connected to a measuring instrument. A storage slot is provided for storing the telescopic measuring rod 5. The telescopic measuring rod 5 can be telescopic in multiple stages. The limiting blocks on the outer circular surface of the upper end of each section of the telescopic measuring rod 5 can slide inside the slide groove 7 to achieve a limiting effect. An iron block 9 is provided at the lower end of the telescopic measuring rod 5, and the iron block 9 can be used as a counterweight. A magnetic block 10 is provided on the upper surface of the probe 3, and the magnetic block 10 can attract the iron block 9. The auxiliary mechanism 8 includes a rotating frame 81 rotatably connected to the upper and lower ends of the handle 4. The inner surface of the rotating frame 81 is rotatably connected to the fitting roller 82. A return spring sleeve 83 is provided between the rotating frames 81. The two ends of the return spring sleeve 83 are provided with hooks 84, and the hooks 84 are fixedly connected to the surface of the rotating frame 81.

[0021] By adopting the above technical solution, when detecting weld defects in pipe 1, it is necessary to move back and forth at the weld on pipe 1. The operator needs to quickly determine the position of the target point, which is the length of the horizontal axis around the outer wall of pipe 1 on the coordinate axis of pipe 1. This quick positioning device can first pull out the telescopic measuring rod 5 inside the handle 4. The magnetic block 10 can attract the iron block 9. When moving the probe 3 on the surface of pipe 1, the auxiliary mechanism 8 can be moved synchronously. The rotating frame 81 in the auxiliary mechanism 8 can fit the outer wall of pipe 1 of different sizes. During the fitting adaptation process, the reset spring sleeve 83 can be stretched and reset. The fitting roller 82 can play an auxiliary rolling role. The telescopic measuring rod 5 and the rolling of the fitting roller 82 can achieve a good follow-up effect. The scale on the magnetic tape measure 2 adsorbed on the outside of pipe 1 can be read through the observation hole 6.

[0022] like Figure 6 As shown, a magnetic ring 11 is provided at the lower end of the rotating rod of the rotating frame 81, and the magnetic ring 11 can attract the iron block 9. When the telescopic measuring rod 5 is stored inside the handle 4, the magnetic ring 11 can attract the iron block 9 to prevent the telescopic measuring rod 5 from sliding out arbitrarily.

[0023] Working principle: When using this rapid positioning device for pipe weld defects, firstly, when detecting weld defects in pipe 1, it is necessary to move back and forth at the weld on pipe 1. The operator needs to quickly determine the position of the target point, which is the length of the horizontal axis around the outer wall of pipe 1 on the coordinate axis of pipe 1. This rapid positioning device can first pull out the telescopic measuring rod 5 inside the handle 4. The magnetic block 10 can attract the iron block 9. When moving the probe 3 on the surface of pipe 1, the auxiliary mechanism 8 can be moved synchronously. The rotating frame 81 in the auxiliary mechanism 8 can fit the outer wall of pipe 1 of different sizes. During the fitting adaptation process, the return spring sleeve 83 can be stretched and reset. The fitting roller 82 can play an auxiliary rolling role. The extension and retraction of the telescopic measuring rod 5 and the rolling of the fitting roller 82 can achieve a good follow-up effect. The scale on the magnetic tape measure 2 adsorbed on the outside of pipe 1 can be read through the observation hole 6. This is the working principle of the rapid positioning device for pipe weld defects.

Claims

1. A pipeline weld defect rapid positioning device, comprising a pipeline (1) and a magnetic tape measure (2) arranged on the outer circumferential surface of the middle section of the pipeline (1), characterized in that, The outer circumferential surface of the lower section of the pipeline (1) is provided with a probe (3), the outer circumferential surface of the upper section of the pipeline (1) is provided with a handle (4), the inside of the handle (4) extends to the lower end and is slidingly connected with a telescopic measuring rod (5), the outer circumferential surface of the telescopic measuring rod (5) is provided with an observation hole (6), the inner circumferential surface of each section of the telescopic measuring rod (5) is provided with a sliding groove (7), the inside of the sliding groove (7) is slidingly connected with a limiting block, the limiting block is fixedly connected to the upper end of the outer circumferential surface of each section of the inner rod of the telescopic measuring rod (5), and the outside of the handle (4) is provided with an auxiliary mechanism (8).

2. A device for rapid positioning of a pipe weld defect according to claim 1, characterized in that The lower end of the telescopic measuring rod (5) is provided with an iron block (9), and the iron block (9) can be used as a counterweight.

3. A device for rapid positioning of a pipe weld defect according to claim 1, characterized in that The upper surface of the probe (3) is provided with a magnetic attraction block (10), and the magnetic attraction block (10) can attract the iron block (9).

4. The apparatus of claim 1, wherein, The auxiliary mechanism (8) comprises a rotating shaft (81) which is rotatably connected to the upper and lower ends of the handle (4), the inner surfaces of the rotating shafts (81) are rotatably connected with abutting rollers (82), reset spring sleeves (83) are arranged between the rotating shafts (81), the two ends of the reset spring sleeves (83) are provided with hooks (84), and the hooks (84) are fixedly connected to the surfaces of the rotating shafts (81).

5. A device for rapid positioning of a pipe weld defect according to claim 4, characterized in that The lower end of the rotating shaft (81) is provided with a magnetic attraction ring (11), and the magnetic attraction ring (11) can attract the iron block (9).

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