Pipeline nondestructive testing device

Abstract

The invention discloses a pipeline nondestructive testing device, and relates to the field of pipeline nondestructive testing. The pipeline robot comprises a pipeline robot body, the pipeline robot body is arranged in a supporting frame, the supporting frame is provided with a contraction mechanism, the contraction mechanism comprises a connecting shaft arranged on the supporting frame, the connecting shaft is slidably connected with a sliding block, the connecting shaft is sleeved with a compression spring, and the compression spring is located between the sliding block and the supporting frame. One end of a first connecting rod is rotationally installed on the sliding block, the other end of the first connecting rod is rotationally installed in the middle of a second connecting rod, and one end of the second connecting rod is rotationally installed on the supporting frame. According to the pipeline robot, the inner wall of a pipeline extrudes the rolling wheels, so that the second connecting rod and the first connecting rod are driven to rotate, the sliding blocks move along the connecting shafts, the compression springs can be extruded, the rolling wheels rotate in the direction of the pipeline robot body, and therefore the pipeline robot can be suitable for detection of different pipeline diameters.

Description

Technical Field

[0001] The invention belongs to the field of pipeline nondestructive testing, and in particular, relates to a pipeline nondestructive testing device. Background Art

[0002] In-pipeline inspection refers to the use of pipeline media to drive the detector to run in the pipeline, real-time detection and recording of pipeline deformation, corrosion and other damage conditions, and accurate positioning operations. Most oil and gas pipelines are laid underground. Through in-pipeline inspection, various defects and damages can be discovered in advance, and the degree of danger of each pipe 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] After searching, Chinese patent number CN214749969U discloses a nondestructive testing device for acoustic flaw detection of steel pipes, including a nondestructive testing device body, the nondestructive testing device body includes a fixed cylinder, a slot is opened on the fixed cylinder, a connecting block is installed inside the slot, a limiting plate is welded at the bottom of the connecting block, a fixed plate is welded at the top of the connecting block, the fixed plate is installed on the fixed cylinder by fastening bolts, a threaded seat is welded on the fixed plate, a threaded rod is installed inside the threaded seat, when the device is used, the sound wave generators on the multiple arc plates are not on the same plane, the multiple sound wave generators and the arc plates are adjusted and fixed in the slot in a trapezoidal shape, when in use, the multiple arc plates cooperate to expand the detection width, and the steel pipe is spirally detected by rotating the arc plate and the fixed cylinder, thereby improving the detection efficiency;

[0004] However, the above patent needs to be set outside the pipeline when in use. However, in outdoor environments, there are often various obstacles outside the pipeline, which makes it impossible to set the patent outside the pipeline for flaw detection.

[0005] When encountering a pipeline that cannot be inspected from the outside, the operation and maintenance personnel will perform flaw detection from the inside of the pipeline. However, due to the limitation of the inner diameter of the pipeline, it is difficult for the operation and maintenance personnel to enter the pipeline for flaw detection. They can only manually insert the non-destructive testing device using the ultrasonic principle into the inside of the pipeline and move the non-destructive testing device back and forth to complete the flaw detection. When moving the non-destructive testing device, in order to protect the non-destructive testing device and avoid scratches between the non-destructive testing device and the pipeline as much as possible, the operation and maintenance personnel need to stably support the non-destructive testing device on the inside of the pipeline, which will increase the physical exertion of the operation and maintenance personnel, making the detection process very time-consuming and laborious. Summary of the invention

[0006] In view of the problems in the related art, the present invention proposes a pipeline non-destructive testing device to overcome the above technical problems existing in the existing related art.

[0007] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] The present invention is a pipeline nondestructive testing device, including a pipeline robot body, which is arranged inside a supporting frame, and the supporting frame is provided with a retracting mechanism, which includes a connecting shaft arranged on the supporting frame, and the connecting shaft is slidably connected with a sliding block, and the connecting shaft is sleeved with a compression spring, and the compression spring is located between the sliding block and the supporting frame, and the sliding block is rotatably installed with one end of a first connecting rod, and the other end of the first connecting rod is rotatably installed at a middle position of a second connecting rod, one end of the second connecting rod is rotatably installed on the supporting frame, and the other end is rotatably installed with a roller, a driving motor is arranged inside the pipeline robot body, and a cleaning mechanism is arranged on the output shaft of the driving motor, and the cleaning mechanism is used to clean the inner wall of the pipeline, and an ultrasonic flaw detection device is arranged above the supporting frame.

[0009] Furthermore, a pipeline robot body is fixedly installed inside the supporting frame, and the connecting shaft is fixedly installed on the supporting frame.

[0010] Furthermore, a connecting plate is fixedly installed inside the pipeline robot body, and the driving motors are all fixedly installed on the connecting plate.

[0011] Furthermore, the cleaning mechanism includes a rotating disk arranged on the output shaft of the driving motor, the rotating disk is rotatably mounted on a fixed frame, the fixed frame is fixedly mounted inside the disc, the rotating disk is fixedly connected to the output shaft of the driving motor, the fixed frame is slidably connected with a cleaning brush, the cleaning brush is fixedly mounted with a protrusion, the protrusion is slidably connected to the inside of an arc-shaped slide groove, the arc-shaped slide groove is opened on the rotating disk, and the cleaning brush is slidably connected to the disc.

[0012] Furthermore, a plurality of the cleaning brushes, protrusions and arc-shaped slide grooves are provided.

[0013] Furthermore, a lighting lamp, a USB interface and a camera are fixedly installed on one end of the pipeline robot body, and a storage module is fixedly installed on the connecting plate.

[0014] Furthermore, the ultrasonic flaw detection device is fixedly installed above the supporting frame, and the supporting frame is fixedly installed to the pipeline robot body by bolts.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention utilizes the inner wall of the pipeline to squeeze the roller, thereby driving the second connecting rod and the first connecting rod to rotate, and then the sliding block moves along the connecting axis, thereby squeezing the compression spring, and then realizing the roller to rotate toward the direction of the pipeline robot body, so that it can be suitable for the detection of different pipeline diameters.

[0017] 2. The present invention rotates the rotating disk, thereby driving the cleaning brush to move in a direction away from the inside of the disk, and then drives the disk to rotate through a remote controller, thereby cleaning the dust on the inner wall of the pipe to prevent affecting the operation of the rear camera.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on the following drawings without creative work.

[0020] Figure 1 The three-dimensional structure of the present invention Figure 1 ;

[0021] Figure 2 It is an enlarged view of point A of the present invention;

[0022] Figure 3 The three-dimensional structure of the present invention Figure 2 ;

[0023] Figure 4 The three-dimensional structure of the present invention Figure 3 ;

[0024] Figure 5 The three-dimensional structure of the present invention Figure 4 ;

[0025] Figure 6 The three-dimensional structure of the present invention Figure 5 .

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. Pipeline robot body; 2. Support frame; 3. Connecting shaft; 4. Sliding block; 5. Compression spring; 6. First connecting rod; 7. Second connecting rod; 8. Roller; 10. Driving motor; 11. Ultrasonic flaw detection device; 12. Connecting plate; 13. Fixed frame; 14. Disc; 15. Bump; 16. Arc slide; 17. Lighting lamp; 18. USB interface; 19. Camera; 20. Storage module; 21. Rotating disc; 22. Cleaning brush. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0029] In the description of the present invention, it is necessary to understand that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the invention.

[0030] See also Figure 1-Figure 6 As shown, the present invention is a pipeline non-destructive testing device, including a pipeline robot body 1, which is arranged inside a supporting frame 2, and the supporting frame 2 is provided with a retracting mechanism, which includes a connecting shaft 3 arranged on the supporting frame 2, and the connecting shaft 3 is slidably connected with a sliding block 4, and the connecting shaft 3 is sleeved with a compression spring 5, and the compression spring 5 is located between the sliding block 4 and the supporting frame 2, and the sliding block 4 is rotatably installed with one end of a first connecting rod 6, and the other end of the first connecting rod 6 is rotatably installed at the middle position of a second connecting rod 7, one end of the second connecting rod 7 is rotatably installed on the supporting frame 2, and the other end is rotatably installed with a roller 8, a driving motor 10 is arranged inside the pipeline robot body 1, and a cleaning mechanism is arranged on the output shaft of the driving motor 10, and the cleaning mechanism is used to clean the inner wall of the pipeline, and an ultrasonic flaw detection device 11 is arranged above the supporting frame 2.

[0031] The working principle of a pipeline nondestructive testing device proposed in the present invention is that when using the device, the device is first placed as a whole into the interior of the pipeline, and then the roller 8 is squeezed by the inner wall of the pipeline, thereby driving the second connecting rod 7 to rotate, and then driving the first connecting rod 6 to rotate, thereby driving the sliding block 4 to move along the connecting shaft 3, and then the compression spring 5 can be squeezed, so that the roller 8 can be rotated in the direction of the pipeline robot body 1, and then it can be suitable for the detection of different pipeline diameters. Then, the remote controller is started to drive the roller 8 to rotate, so as to facilitate the movement of the device inside the pipeline, and the cleaning mechanism can be started synchronously to clean the inner wall of the pipeline to prevent dust from affecting the detection work of the pipeline robot body 1. At the same time, the ultrasonic flaw detection device 11 is used to detect the inside of the pipeline. When the ultrasonic wave encounters defects such as cracks, pores, inclusions, etc. inside the pipeline or the interface of different media, reflection, refraction or scattering will occur. By detecting these reflected ultrasonic signals, the defects inside the material can be inferred.

[0032] In one embodiment, for the above-mentioned supporting frame 2 , the pipeline robot body 1 is fixedly installed inside the supporting frame 2 , and the connecting shaft 3 is fixedly installed on the supporting frame 2 .

[0033] In one embodiment, for the above-mentioned pipeline robot body 1 , a connecting plate 12 is fixedly installed inside the pipeline robot body 1 , and the driving motors 10 are fixedly installed on the connecting plate 12 .

[0034] The working principle of the pipeline nondestructive testing device proposed in the present invention is that when the pipeline robot body 1 is separated from the pipeline, the compression spring 5 is used to drive the sliding block 4 to reset, thereby driving the roller 8 to move in the opposite direction away from the pipeline robot body 1, thereby completing the reset.

[0035] In one embodiment, for the above-mentioned cleaning mechanism, the cleaning mechanism includes a rotating disk 21 arranged on the output shaft of the driving motor 10, the rotating disk 21 is rotatably mounted on the fixed frame 13, the fixed frame 13 is fixedly mounted inside the disc 14, the rotating disk 21 is fixedly connected to the output shaft of the driving motor 10, the fixed frame 13 is slidably connected with a cleaning brush 22, the cleaning brush 22 is fixedly mounted with a protrusion 15, the protrusion 15 is slidably connected to the inside of the arc-shaped slide groove 16, the arc-shaped slide groove 16 is opened on the rotating disk 21, and the cleaning brush 22 is slidably connected to the disc 14.

[0036] In one embodiment, for the cleaning brush 22, a plurality of cleaning brushes 22, a plurality of protrusions 15 and a plurality of arc-shaped slide grooves 16 are provided.

[0037] In one embodiment, for the above-mentioned pipeline robot body 1 , a lighting lamp 17 , a USB interface 18 and a camera 19 are fixedly installed on one end of the pipeline robot body 1 , and a storage module 20 is fixedly installed on the connecting plate 12 .

[0038] The working principle of a pipeline non-destructive testing device proposed by the present invention is to start the driving motor 10, thereby driving the rotating disk 21 to rotate, and then driving the arc-shaped slide groove 16 to rotate, thereby driving the protrusion 15 to rotate along the inside of the arc-shaped slide groove 16, and then driving the cleaning brush 22 to move along the direction of the fixed frame 13, so that the cleaning brush 22 moves in the direction away from the inside of the disc 14, and then driving the disc 14 to rotate through the remote controller, so as to clean the dust on the inner wall of the pipeline to prevent affecting the operation of the rear camera 19.

[0039] It is worth noting that the distance that the cleaning brush 22 moves can be changed by the number of revolutions of the rotating disk 21, so that it can be suitable for cleaning the inner walls of different pipes.

[0040] In one embodiment, for the ultrasonic flaw detection device 11, the ultrasonic flaw detection device 11 is fixedly installed above the support frame 2, and the support frame 2 is fixedly installed with the pipeline robot body 1 by bolts.

[0041] The working principle of the pipeline nondestructive testing device proposed by the present invention is that the device is driven to move inside the pipeline by the rotation of the roller 8. Every time the device moves a certain distance, it will stop and start the camera 19 to take pictures of the inner wall of the pipeline for detection. The photographed data is stored in the storage module 20. After the detection is completed, the detection data is transmitted to the outside through the USB interface 18 to facilitate analysis by the staff.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The preferred embodiments of the invention disclosed above are only used to help illustrate the invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and changes can be made based on the content of this specification. This specification selects and specifically describes the embodiments in order to better explain the principles and practical applications of the invention, so that those skilled in the art can better understand and use the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A pipeline nondestructive testing device, comprising a pipeline robot body (1), characterized in that: The pipeline robot body (1) is arranged inside the support frame (2), and the support frame (2) is provided with a retracting mechanism, the retracting mechanism includes a connecting shaft (3) arranged on the support frame (2), the connecting shaft (3) is slidably connected to a sliding block (4), the connecting shaft (3) is sleeved with a compression spring (5), and the compression spring (5) is located between the sliding block (4) and the support frame (2), the sliding block (4) is rotatably mounted with one end of a first connecting rod (6), the other end of the first connecting rod (6) is rotatably mounted at the middle position of a second connecting rod (7), one end of the second connecting rod (7) is rotatably mounted on the support frame (2), and the other end is rotatably mounted with a roller (8), a driving motor (10) is arranged inside the pipeline robot body (1), and the output shaft of the driving motor (10) is provided with a cleaning mechanism, and the cleaning mechanism is used to clean the inner wall of the pipeline, and an ultrasonic flaw detection device (11) is arranged above the support frame (2).

2. A pipeline nondestructive testing device according to claim 1, characterized in that: The pipeline robot body (1) is fixedly mounted inside the support frame (2), and the connecting shaft (3) is fixedly mounted on the support frame (2).

3. A pipeline nondestructive testing device according to claim 2, characterized in that: A connecting plate (12) is fixedly mounted inside the pipeline robot body (1), and the driving motors (10) are all fixedly mounted on the connecting plate (12).

4. A pipeline nondestructive testing device according to claim 3, characterized in that: The cleaning mechanism comprises a rotating disk (21) arranged on the output shaft of the driving motor (10), the rotating disk (21) is rotatably mounted on a fixed frame (13), the fixed frame (13) is fixedly mounted inside a disc (14), the rotating disk (21) is fixedly connected to the output shaft of the driving motor (10), the fixed frame (13) is slidably connected with a cleaning brush (22), the cleaning brush (22) is fixedly mounted with a convex block (15), the convex block (15) is slidably connected inside an arc-shaped slide groove (16), the arc-shaped slide groove (16) is opened on the rotating disk (21), and the cleaning brush (22) is slidably connected to the disc (14).

5. A pipeline nondestructive testing device according to claim 4, characterized in that: A plurality of the cleaning brushes (22), the protrusions (15) and the arc-shaped slide grooves (16) are provided.

6. A pipeline nondestructive testing device according to claim 5, characterized in that: A lighting lamp (17), a USB interface (18) and a camera (19) are fixedly mounted on one end of the pipeline robot body (1), and a storage module (20) is fixedly mounted on the connection plate (12).

7. A pipeline nondestructive testing device according to claim 6, characterized in that: The ultrasonic flaw detection device (11) is fixedly mounted above the support frame (2), and the support frame (2) is fixedly mounted to the pipeline robot body (1) via bolts.

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