A pipeline non-destructive testing device suitable for narrow environments

Abstract

This utility model relates to the technical field of pipeline non-destructive testing devices, and discloses a pipeline non-destructive testing device suitable for narrow environments. It includes a testing instrument body, a connecting wire mounted on the outer surface of the testing instrument body, and a testing head mounted on the end of the connecting wire away from the testing instrument body. The testing head is electrically connected to the testing instrument body. The outer surface of the testing head is provided with a movable component and a protective component. This pipeline non-destructive testing device suitable for narrow environments, through the fixed component, allows the motor to be turned on when different pipelines are needed. Through the protective component, the worm gear drives the worm wheel, rotating rod, and gear to rotate synchronously. At this time, the clamping teeth push the circular plate to rotate, and the inner wall of the connecting hole abuts against the outer surface of the short rod, thereby driving the connecting plate and connecting frame to move radially, ultimately causing the outer surface of the roller to abut against the inner wall of the pipeline. This allows it to adapt to different pipeline diameters, facilitating testing and use.

Description

Technical Field

[0001] This utility model relates to the technical field of pipeline non-destructive testing devices, specifically a pipeline non-destructive testing device suitable for narrow environments. Background Technology

[0002] Pipeline inspection refers to the operation of using the pipeline medium to drive a detector to run inside the pipeline, detect and record the deformation, corrosion and other damage of the pipeline in real time, and accurately locate the damage. Most oil and gas pipelines are buried underground. Through pipeline inspection, various defects and damages can be detected in advance, the degree of danger of each pipeline section can be understood, accidents can be prevented and effectively reduced, and pipeline maintenance funds can be saved. It is an important measure to ensure pipeline safety.

[0003] A search revealed a pipeline non-destructive testing device suitable for narrow environments, with publication number CN220061041U. This application, through the configuration of a motor and wheels, allows for the control of the motor's start and stop via operation buttons, thereby controlling the movement of the wheels. Workers place the testing components inside the pipeline and control the testing head to reach the designated position inside the pipeline via the operation buttons, eliminating the need for manual cable adjustment. This improves work efficiency and enhances practicality.

[0004] However, the device's wheels are fixed and cannot be adjusted according to the pipe's inner diameter, making it only suitable for pipes of a specific diameter. For different pipe diameters, different specifications of detection devices need to be replaced, increasing the cost and complexity of operation. In pipes with varying diameters or pipe sections with local deformation, the fixed wheel spacing may cause poor contact between the detector and the pipe wall, affecting the accuracy of the detection data and even causing the equipment to jam. Utility Model Content

[0005] The purpose of this invention is to provide a non-destructive testing device for pipelines suitable for narrow environments, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a non-destructive testing device for pipelines suitable for narrow environments, comprising a testing instrument body, a connecting wire mounted on the outer surface of the testing instrument body, a testing head mounted on the end of the connecting wire away from the testing instrument body, the testing head being electrically connected to the testing instrument body, and a movable component and a protective component being provided on the outer surface of the testing head;

[0007] The active components include:

[0008] The fixed frame is used to stabilize its internal mechanism;

[0009] A circular plate is used to drive the synchronous movement of various components.

[0010] Transmission components are used to provide power.

[0011] Preferably, the fixed frame is fixed to the outer surface of the detection head. A circular plate is rotatably connected to the inner wall of the fixed frame. A connecting hole is opened on the outer surface of the circular plate. A short rod is abutted against the inner wall of the connecting hole. A connecting plate is fixed to the outer surface of the short rod. The end of the connecting plate away from the short rod passes through the fixed frame and is slidably connected to the fixed frame. A connecting frame is fixed to the end of the connecting plate away from the short rod. A roller is rotatably connected to the inner side of the connecting frame. A motor is fixed to the outer surface of the connecting frame. The output shaft of the motor passes through the connecting frame and is fixed to the outer surface of the roller. When the circular plate rotates, the inner wall of the connecting hole abuts against the outer surface of the short rod, driving the connecting plate and the connecting frame to move radially. Finally, the outer surface of the roller abuts against the inner wall of the pipe, realizing adaptive adjustment for different pipe diameters.

[0012] Preferably, the transmission component includes a fixed frame, which is fixed to the outer surface of a fixed frame. A worm gear is rotatably connected to the outer surface of the fixed frame. A stabilizing plate is fixed to the outer surface of the fixed frame. A gear is rotatably connected to the outer surface of the stabilizing plate. A rotating rod is fixed to the outer surface of the gear. A worm wheel is fixed to the end of the rotating rod away from the gear. The worm wheel meshes with the worm gear. A through hole is opened on the outer surface of the fixed frame. A retaining tooth is fixed to the outer surface of the circular plate. The gear passes through the through hole and meshes with the retaining tooth. A second motor is fixed to the outer surface of the fixed frame. The second motor passes through the fixed frame. When the worm gear rotates, it drives the worm wheel, rotating rod, and gear to rotate synchronously.

[0013] Preferably, the outer surface of the worm gear has a movable groove, the output shaft of the second motor extends into the movable groove, the output shaft of the second motor passes through and is fixed to a first fixing plate, the output shaft of the second motor passes through and is slidably connected to the second fixing plate, a spring is fixed to the outer surface of the second fixing plate, the end of the spring away from the second fixing plate is fixed to the outer surface of the first fixing plate, the side of the second fixing plate away from the spring has an abutment groove, and a fixing block is provided on the inner wall of the movable groove. When the roller abuts against the inner wall of the pipe, the connecting plate cannot continue to move, the abutment groove and the fixing block slip, which will not affect the normal operation of the second motor.

[0014] Preferably, the connecting hole is arc-shaped, so that when the circular plate rotates, it can synchronously drive the short rod and the connecting plate to move radially.

[0015] Preferably, both the contact groove and the fixing block are hemispherical. When the worm cannot rotate, the fixing block and the contact groove can slip, thus avoiding affecting the normal operation of the second motor.

[0016] Compared with the prior art, this utility model provides a non-destructive testing device for pipelines suitable for narrow environments, which has the following advantages:

[0017] 1. This non-destructive testing device for pipes suitable for narrow environments, through the set fixed components, when different pipes are needed, the motor is turned on, and through the protective components, the worm gear drives the worm wheel, rotating rod and gear to rotate synchronously; at this time, the clamping teeth push the circular plate to rotate, and the inner wall of the connecting hole abuts against the outer surface of the short rod, thereby driving the connecting plate and connecting frame to move radially, and finally making the outer surface of the roller abut against the inner wall of the pipe, thus adapting to different pipe diameters, facilitating testing and use.

[0018] 2. This non-destructive testing device for pipelines suitable for narrow environments, through the protective components, prevents the connecting plate from moving further when the roller comes into contact with the inner wall of the pipeline, and causes the contact groove to slip against the fixing block 54, which will not affect the normal operation of the motor 2. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model from below;

[0021] Figure 3 This is a schematic diagram of the internal structure of the fixing component of this utility model;

[0022] Figure 4 This is a rear view schematic diagram of some of the fixing components of this utility model;

[0023] Figure 5 This is an exploded view of some of the fixing components of this utility model;

[0024] Figure 6 This is a cross-sectional structural diagram of some of the fixing components and protective components of this utility model.

[0025] In the diagram: 1. Detector body; 2. Connecting cable; 3. Detection head; 4. Movable component; 40. Fixing frame; 41. Circular plate; 42. Connecting hole; 43. Short rod; 44. Connecting plate; 45. Connecting frame; 46. Roller; 47. Motor 1; 48. Transmission component; 480. Fixing frame; 481. Motor 2; 482. Worm gear; 483. Clamping gear; 484. Stabilizing plate; 485. Gear; 486. Rotating rod; 487. Worm gear; 488. Through hole; 5. Protective component; 50. Movable groove; 51. Fixing plate 1; 52. Fixing plate 2; 53. Contact groove; 54. Fixing block; 55. Spring. Detailed Implementation

[0026] like Figures 1-6As shown, this utility model provides a technical solution: a non-destructive testing device for pipelines suitable for narrow environments, including a testing instrument body 1, a connecting line 2 installed on the outer surface of the testing instrument body 1, a testing head 3 installed at the end of the connecting line 2 away from the testing instrument body 1, the testing head 3 being electrically connected to the testing instrument body 1, and a movable component 4 and a protective component 5 being provided on the outer surface of the testing head 3; the movable component 4 includes: a fixed frame 40, a circular plate 41, a connecting hole 42, a short rod 43, a connecting plate 44, a connecting frame 45, a roller 46, a first motor 47, a transmission component 48, a fixed frame 480, a second motor 481, a worm gear 482, a locking tooth 483, a stabilizing plate 484, a gear 485, a rotating rod 486, a worm wheel 487, and a through hole 488.

[0027] A fixed frame 40 is fixed to the outer surface of the detection head 3. A circular plate 41 is rotatably connected to the inner wall of the fixed frame 40. A connecting hole 42 is opened on the outer surface of the circular plate 41. A short rod 43 abuts against the inner wall of the connecting hole 42. A connecting plate 44 is fixed to the outer surface of the short rod 43. The end of the connecting plate 44 away from the short rod 43 passes through the fixed frame 40 and is slidably connected to the fixed frame 40. A connecting bracket 45 is fixed to the end of the connecting plate 44 away from the short rod 43. A roller 4 is rotatably connected to the inner side of the connecting bracket 45. 6. A motor 47 is fixed to the outer surface of the connecting frame 45. The output shaft of the motor 47 passes through the connecting frame 45 and is fixed to the outer surface of the roller 46. The transmission component 48 includes a fixed frame 480, which is fixed to the outer surface of the fixed frame 40. A worm gear 482 is rotatably connected to the outer surface of the fixed frame 480. A stabilizing plate 484 is fixed to the outer surface of the fixed frame 40. A gear 485 is rotatably connected to the outer surface of the stabilizing plate 484. The outer surface of the gear 485 is fixed to... There is a rotating rod 486, and a worm gear 487 is fixed at the end of the rotating rod 486 away from the gear 485. The worm gear 487 meshes with the worm 482. A through hole 488 is opened on the outer surface of the fixed frame 40. A retaining tooth 483 is fixed on the outer surface of the circular plate 41. The gear 485 passes through the through hole 488 and meshes with the retaining tooth 483. A second motor 481 is fixed on the outer surface of the fixed frame 480 and passes through the fixed frame 480. The connecting hole 42 is set in an arc shape. When the inner wall of the contact groove 53 is in contact with the fixed... When the outer surface of the fixed block 54 abuts, the worm gear 482 is driven to rotate synchronously, which in turn drives the worm wheel 487, the rotating rod 486 and the gear 485 to rotate synchronously. At this time, the locking tooth 483 pushes the circular plate 41 to rotate forward, so that the inner wall of the connecting hole 42 abuts against the outer surface of the short rod 43, thereby driving the connecting plate 44 and the connecting frame 45 to move radially, and finally making the outer surface of the roller 46 abut against the inner wall of the pipe, realizing adaptive adjustment for different pipe diameters. When the motor 481 reverses, the roller 46 can move closer to the fixed frame 40.

[0028] The outer surface of the worm gear 482 has a movable groove 50. The output shaft of the second motor 481 extends into the movable groove 50. The output shaft of the second motor 481 passes through and is fixed to a first fixing plate 51. The output shaft of the second motor 481 passes through and is slidably connected to a second fixing plate 52. A spring 55 is fixed to the outer surface of the second fixing plate 52. The end of the spring 55 away from the second fixing plate 52 is fixed to the outer surface of the first fixing plate 51. A contact groove 53 is provided on the side of the second fixing plate 52 away from the spring 55. A fixing block 54 is provided on the inner wall of the movable groove 50. Both the contact groove 53 and the fixing block 54 are hemispherical. When the roller 46 contacts the inner wall of the pipe, the connecting plate 44 cannot continue to move. The contact groove 53 and the fixing block 54 slip, which will not affect the normal operation of the second motor 481 and avoid damage to the second motor 481.

[0029] In use, the detection head 3 is placed inside the pipe. When it needs to adapt to pipes of different diameters, the motor 481 is turned on. At this time, the first fixing plate 51 and the second fixing plate 52 rotate synchronously. The inner wall of the contact groove 53 abuts against the outer surface of the fixing block 54, which drives the worm gear 482 to rotate synchronously. At this time, the worm wheel 487 drives the rotating rod 486 and the gear 485 to rotate synchronously. At this time, the retaining tooth 483 drives the circular plate 41 to rotate clockwise. At this time, the inner wall of the connecting hole 42 abuts against the outer surface of the short rod 43, which drives the connecting plate 44 and the connecting frame 45 to move radially synchronously. This drives the outer surface of the roller 46 to contact the pipe. The inner wall contact mechanism adapts to different pipes. When roller 46 contacts the inner wall of the pipe, connecting plate 44 cannot move further, while motor 481 continues to operate. Slippage occurs between contact groove 53 and fixing block 54, and spring 55 allows fixing plate 52 to reciprocate without affecting the normal operation of motor 481, thus preventing damage. During inspection, motor 47 is activated, causing roller 46 to rotate and move the inspection head 3, facilitating pipe inspection. The inspection head 3 utilizes high-frequency sound waves propagating within the pipe wall. When these waves encounter defects (such as cracks or pores) or material boundaries, some energy is reflected back to the inspection head 3. By analyzing the time difference and amplitude of the reflected waves, the location and size of the defect can be determined.

[0030] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A non-destructive testing device for pipes suitable for narrow environments, comprising a testing instrument body (1), characterized in that: A connecting line (2) is installed on the outer surface of the detector body (1). A detection head (3) is installed at the end of the connecting line (2) away from the detector body (1). The detection head (3) is electrically connected to the detector body (1). A movable component (4) and a protective component (5) are provided on the outer surface of the detection head (3). The active component (4) includes: The fixed frame (40) is used to stabilize its internal mechanism; The circular plate (41) is used to drive the synchronous movement of each component; Transmission component (48) is used to provide power.

2. The pipe non-destructive testing device suitable for narrow environments according to claim 1, characterized in that: The fixed frame (40) is fixed on the outer surface of the detection head (3). A circular plate (41) is rotatably connected to the inner wall of the fixed frame (40). A connecting hole (42) is opened on the outer surface of the circular plate (41). A short rod (43) abuts against the inner wall of the connecting hole (42). A connecting plate (44) is fixed on the outer surface of the short rod (43). The end of the connecting plate (44) away from the short rod (43) passes through the fixed frame (40), and the connecting plate (44) is slidably connected to the fixed frame (40). A connecting frame (45) is fixed on the end of the connecting plate (44) away from the short rod (43). A roller (46) is rotatably connected to the inner side of the connecting frame (45). A motor (47) is fixed on the outer surface of the connecting frame (45). The output shaft of the motor (47) passes through the connecting frame (45), and the output shaft of the motor (47) is fixed on the outer surface of the roller (46).

3. The pipe non-destructive testing device suitable for narrow environments according to claim 2, characterized in that: The transmission component (48) includes a fixed frame (480) fixed to the outer surface of a fixed frame (40). A worm gear (482) is rotatably connected to the outer surface of the fixed frame (480). A stabilizing plate (484) is fixed to the outer surface of the fixed frame (40). A gear (485) is rotatably connected to the outer surface of the stabilizing plate (484). A rotating rod (486) is fixed to the outer surface of the gear (485). The rotating rod (486) is located away from the gear (485). One end is fixed with a worm gear (487), which meshes with a worm (482). The outer surface of the fixed frame (40) is provided with a through hole (488). The outer surface of the circular plate (41) is fixed with a toothed cleaving (483). The gear (485) passes through the through hole (488) and meshes with the toothed cleaving (483). The outer surface of the fixed frame (480) is fixed with a second motor (481), which passes through the fixed frame (480).

4. The pipe non-destructive testing device suitable for narrow environments according to claim 3, characterized in that: The outer surface of the worm gear (482) is provided with a movable groove (50). The output shaft of the second motor (481) extends into the movable groove (50). The output shaft of the second motor (481) is connected to a fixed plate (51) through and fixed. The output shaft of the second motor (481) is connected to a fixed plate (52) through and slidably connected. A spring (55) is fixed on the outer surface of the fixed plate (52). One end of the spring (55) away from the fixed plate (52) is fixed to the outer surface of the fixed plate (51). An abutment groove (53) is provided on the side of the fixed plate (52) away from the spring (55). A fixing block (54) is provided on the inner wall of the movable groove (50).

5. A pipe non-destructive testing device suitable for narrow environments according to claim 2, characterized in that: The connecting hole (42) is set to be arc-shaped.

6. A pipe non-destructive testing device suitable for narrow environments according to claim 4, characterized in that: Both the contact groove (53) and the fixing block (54) are set to be hemispherical.

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