A pipeline surface defect marking device

Abstract

The utility model relates to long oil and gas pipeline detection technical field especially is a kind of pipeline surface defect marking device, including bearing vehicle body and marking structure, the marking structure includes notch ring, two side bars are fixedly installed in the outer surface side of notch ring, and the one end of two side bars is fixedly installed with fixed ring. Through marking structure, when detecting and marking to long oil and gas pipeline outer surface depression, by the notch ring is sleeved in pipeline outside, then bearing vehicle body drives notch ring to move in pipeline outside, when five detection instruments can be used to detect pipeline outer surface without dead angle, when encountering defective part, by moving a small distance forward, make seal align near depression, when by the drive of electric push cylinder, make its telescopic rod one end drive seal move downward and make it contact with pipeline outer surface, when personnel can determine depression position by observing mark, thus reach the purpose of improving detection efficiency, reduce manual intervention.

Description

Technical Field

[0001] This utility model relates to the field of long-distance oil and gas pipeline inspection technology, specifically a pipeline surface defect marking device. Background Technology

[0002] Long-distance oil and gas pipelines are industrial pipeline systems that transport fluid media such as natural gas, fuel oil, and chemicals over long distances. They are classified into two categories based on materials: metallic and non-metallic. The design pressure ranges from vacuum to ultra-high pressure (up to 100MPa and above), and they are widely used in oil and gas gathering and transportation, urban gas supply, and energy base transportation.

[0003] In the production process of long-distance oil and gas pipelines, it is necessary to detect defects on the pipeline surface. In the existing technology, defects are detected by manually irradiating the surface with a handheld detector. This process is very time-consuming and labor-intensive, and it is easy to miss marks, which will affect the normal use of the pipeline. Based on the shortcomings of the existing technology, this utility model designs a pipeline surface defect marking device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a pipe surface defect marking device, which has the advantages of improving detection efficiency and reducing manual intervention.

[0005] This utility model provides the following technical solution: a pipe surface defect marking device, including a carrier body and a marking structure. The marking structure includes a notched ring. Two side rods are fixedly installed on one side of the outer surface of the notched ring. A fixing ring is fixedly installed at one end of each side rod. Five detectors are fixedly installed inside the fixing ring. A top frame is fixedly installed on the top of the notched ring. A fixing bracket is fixedly installed on the top of the top frame. An electric push cylinder is fixedly installed inside the fixing bracket. A stamp is fixedly installed at one end of the telescopic rod of the electric push cylinder.

[0006] As a preferred embodiment of this utility model, a rotating platform is rotatably mounted on the top of the carrier body, and an adjustment structure is fixedly mounted on the top of the rotating platform.

[0007] As a preferred embodiment of this utility model, the adjustment structure includes a threaded rod and two limiting rods, wherein the threaded rod is rotatably connected to the rotating table.

[0008] As a preferred embodiment of this utility model, the two limiting rods are fixedly connected to the rotating platform, and a top plate is fixedly installed on the top of the two limiting rods.

[0009] As a preferred embodiment of this utility model, a servo motor is fixedly installed on the top of the top plate, and one end of the output shaft of the servo motor is fixedly connected to a threaded rod.

[0010] As a preferred embodiment of this utility model, a sliding sleeve is slidably installed on the outer surface of the two limiting rods, and a threaded block is fixedly installed between the two sliding sleeves.

[0011] As a preferred embodiment of this utility model, the threaded block is threadedly connected to the threaded rod, and two crossbars are fixedly installed on one side of the outer surface of the threaded block.

[0012] As a preferred technical solution of this utility model, one end of each of the two crossbars is fixedly connected to the notched ring.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. This pipeline surface defect marking device, through its marking structure, marks the depressions on the outer surface of long-distance oil and gas pipelines. By placing a notched ring around the outside of the pipeline, the carrier vehicle moves the notched ring around the outside of the pipeline. At this time, five detectors can detect the outer surface of the pipeline without blind spots. When a defect is encountered, the stamp is moved forward a short distance to align with the vicinity of the depression. Then, driven by an electric push cylinder, one end of its telescopic rod moves the stamp downward to contact the outer surface of the pipeline. Personnel can then determine the location of the depression by observing the mark, thereby improving detection efficiency and reducing manual intervention. 2. This pipeline surface defect marking device, through the adjustment structure, when the notched ring is placed on the outer surface of the oil and gas pipeline, can be driven by a servo motor to make its output shaft drive the threaded rod to rotate. Due to the limiting rods on both sides, the two sliding sleeves can drive the threaded block to move horizontally up and down on the outer surface of the threaded rod. This allows the height of the marking structure driven by the crossbar to be adjusted, thus accommodating oil and gas pipelines erected at different heights. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the appearance and structure of this utility model; Figure 2 This is a schematic diagram of the adjustment structure of this utility model; Figure 3 This is a schematic diagram of the crossbar structure of this utility model; Figure 4 This is a schematic diagram of the structure of the detector of this utility model; Figure 5 This is a schematic diagram of the seal structure of this utility model.

[0015] In the diagram: 1. Carrier body; 2. Rotary table; 3. Adjustment structure; 31. Threaded rod; 32. Limiting rod; 33. Top plate; 34. Servo motor; 35. Sliding sleeve; 36. Threaded block; 4. Crossbar; 5. Marking structure; 51. Notched ring; 52. Side rod; 53. Fixing ring; 54. Detector; 55. Top frame; 56. Fixing frame; 57. Electric push cylinder; 58. Stamp. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-5 A pipe surface defect marking device includes a carrier body 1 and a marking structure 5. The marking structure 5 includes a notched ring 51. Two side rods 52 are fixedly installed on one side of the outer surface of the notched ring 51. A fixing ring 53 is fixedly installed at one end of the two side rods 52. Five detectors 54 are fixedly installed inside the fixing ring 53. A top frame 55 is fixedly installed on the top of the notched ring 51. A fixing bracket 56 is fixedly installed on the top of the top frame 55. An electric push cylinder 57 is fixedly installed inside the fixing bracket 56. A stamp 58 is fixedly installed at one end of the telescopic rod of the electric push cylinder 57.

[0018] Please see Figure 1-2 A rotating platform 2 is rotatably mounted on the top of the vehicle body 1, and an adjustment structure 3 is fixedly mounted on the top of the rotating platform 2. The adjustment structure 3 includes a threaded rod 31 and two limiting rods 32. The threaded rod 31 is rotatably connected to the rotating platform 2. The two limiting rods 32 are fixedly connected to the rotating platform 2, and a top plate 33 is fixedly mounted on the top of the two limiting rods 32. A servo motor 34 is fixedly mounted on the top of the top plate 33, and one end of the output shaft of the servo motor 34 is fixedly connected to the threaded rod 31. Sliding sleeves 35 are slidably mounted on the outer surfaces of the two limiting rods 32, and a threaded block 36 is fixedly mounted between the two sliding sleeves 35. The threaded block 36 is threadedly connected to the threaded rod 31, and two crossbars 4 are fixedly mounted on one side of the outer surface of the threaded block 36. One end of the two crossbars 4 is fixedly connected to a notched ring 51.

[0019] When the notched ring 51 is fitted onto the outer surface of the oil and gas pipeline, the output shaft of the servo motor 34 can be driven to rotate the threaded rod 31. Due to the limiting of the two side limit rods 32, the two sliding sleeves 35 can drive the threaded block 36 to move horizontally up and down on the outer surface of the threaded rod 31. This allows the height of the crossbar 4 and the marking structure 5 to be adjusted, thus accommodating oil and gas pipelines installed at different heights.

[0020] Working principle: When a pipeline surface defect marking device is used, firstly, when the notched ring 51 is placed on the outer surface of the oil and gas pipeline, the output shaft of the servo motor 34 drives the threaded rod 31 to rotate. Due to the limiting rods 32 on both sides, the two sliding sleeves 35 can drive the threaded block 36 to move horizontally up and down on the outer surface of the threaded rod 31. This allows the height of the marking structure 5 to be adjusted by the crossbar 4, thus accommodating oil and gas pipelines at different heights. Then, the notched ring 51 is placed from the end of the pipeline's outer surface, and the carrier vehicle 1 is started to move the marking structure 5. At this time, the pipeline's outer surface can be inspected without blind spots by five detectors 54. When a defect is encountered, the stamp 58 is aligned with the vicinity of the depression by moving forward a short distance. At this time, the electric push cylinder 57 drives one end of its telescopic rod to move the stamp 58 downward to contact the pipeline's outer surface. Personnel can then determine the location of the depression by observing the marking.

[0021] 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 and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipe surface defect marking device, comprising a carrier body (1) and a marking structure (5), characterized in that: The marking structure (5) includes a notched ring (51), two side rods (52) are fixedly installed on one side of the outer surface of the notched ring (51), a fixing ring (53) is fixedly installed at one end of the two side rods (52), five detectors (54) are fixedly installed inside the fixing ring (53), a top frame (55) is fixedly installed on the top of the notched ring (51), a fixing bracket (56) is fixedly installed on the top of the top frame (55), an electric push cylinder (57) is fixedly installed inside the fixing bracket (56), and a stamp (58) is fixedly installed at one end of the telescopic rod of the electric push cylinder (57).

2. The pipe surface defect marking device according to claim 1, characterized in that: A rotating platform (2) is rotatably mounted on the top of the carrier body (1), and an adjustment structure (3) is fixedly mounted on the top of the rotating platform (2).

3. The pipe surface defect marking device according to claim 2, characterized in that: The adjustment structure (3) includes a threaded rod (31) and two limiting rods (32), and the threaded rod (31) is rotatably connected to the rotating table (2).

4. A pipe surface defect marking device according to claim 3, characterized in that: The two limiting rods (32) are fixedly connected to the rotating table (2), and a top plate (33) is fixedly installed on the top of the two limiting rods (32).

5. A pipe surface defect marking device according to claim 4, characterized in that: A servo motor (34) is fixedly installed on the top of the top plate (33), and one end of the output shaft of the servo motor (34) is fixedly connected to the threaded rod (31).

6. A pipe surface defect marking device according to claim 3, characterized in that: Sliding sleeves (35) are slidably installed on the outer surfaces of the two limiting rods (32), and threaded blocks (36) are fixedly installed between the two sliding sleeves (35).

7. A pipe surface defect marking device according to claim 6, characterized in that: The threaded block (36) is threadedly connected to the threaded rod (31), and two crossbars (4) are fixedly installed on one side of the outer surface of the threaded block (36).

8. A pipe surface defect marking device according to claim 7, characterized in that: One end of each of the two crossbars (4) is fixedly connected to the notched ring (51).

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