An adjustable in-pipe wall defect detection device

Abstract

The utility model belongs to pipeline inner wall defect detection technical field discloses an adjustable pipeline inner wall defect detection device, including a push rod that goes into the inside of pipeline, the front end of push rod is equipped with the walking ware that can adjust according to the size of pipeline inner diameter, and the walking ware includes the walking ware main part in the push rod front end, the end of walking ware main part is equipped with the open positioning mechanism that is in line with the pipeline inner wall, and the open positioning mechanism includes the open arm that is equipped in the walking ware main body circumferential side, the front end of open arm is equipped with the walking wheel that is in line with the pipeline inner wall, the front end of walking ware main body is equipped with the visual camera for the visual detection of pipeline inner wall defect, a plurality of open arms are adjusted through the synchronous adjusting mechanism. The utility model installs visual camera on the walking ware, so when the ejector rod is pushed forward to the pipeline, the camera will not shake, and the detection effect is good.

Description

Technical Field

[0001] This utility model relates to the field of pipeline inner wall defect detection technology, and in particular to an adjustable pipeline inner wall defect detection device. Background Technology

[0002] Pipelines are widely used as a means of material transportation in many fields. In order to improve the service life of pipelines and prevent accidents such as pipeline leaks, it is necessary to inspect the defects of the inner wall of the pipeline during the manufacturing process to ensure that each pipeline meets the specifications. Most existing methods use a vision camera installed at the front end of a push rod to inspect the inner wall of the pipeline. However, when the push rod is inserted into the pipeline, it is prone to vibration, which causes the vision camera image to shake, resulting in visual inspection errors. Utility Model Content

[0003] To overcome the technical defects of the existing technology, this utility model provides an adjustable pipe inner wall defect detection device. The visual camera is installed on the walking device, so that when the push rod is pushed forward into the pipe, the camera will not shake, thus ensuring a better detection effect.

[0004] The technical solution adopted by this utility model is: an adjustable pipe inner wall defect detection device, including a push rod extending into the pipe, the front end of the push rod is provided with a walking device that can be adjusted according to the inner diameter of the pipe, and the walking device includes a walking device body placed at the front end of the push rod, the end of the walking device body is provided with an opening and positioning mechanism that fits against the inner wall of the pipe, and the opening and positioning mechanism includes an opening arm provided on the periphery of the walking device body, the front end of the opening arm is provided with a walking wheel that fits against the inner wall of the pipe, and a visual camera for visually detecting defects in the inner wall of the pipe is installed at the front end of the walking device body, and the multiple opening arms are adjusted by a synchronous adjustment mechanism.

[0005] Preferably, the synchronous adjustment mechanism includes a lead screw disposed on the central axis of the walking device body, a moving block disposed on the lead screw and moving along the lead screw, a plurality of optical rods disposed parallel to the lead screw on the walking device body, a sliding block disposed on the optical rod and moving along the optical rod, an adjustment block installed between the sliding block and the moving block, and an adjustment arm hinged between the adjustment block and the opening arm.

[0006] Preferably, the walking device body is equipped with a reduction motor that drives the lead screw to rotate.

[0007] Preferably, the output shaft of the geared motor is provided with a torque sensor for detecting the torque of the geared motor. When the torque sensor detects that the torque value of the geared motor is greater than the set value, the torque sensor and the traveling wheel at the end of the open arm of the surface abut against the inner wall of the pipe. At this time, the controller controls the geared motor to stop working.

[0008] Preferably, the push rod is hinged to the main body of the walking device.

[0009] Preferably, the wheels are rubber wheels.

[0010] The beneficial effects of this utility model are as follows: 1. This utility model, by setting a walking device at the front end of the top rod that can be adjusted according to the inner diameter of the pipe, and mounting the visual camera on the walking device, prevents the camera from shaking when the top rod is pushed forward into the pipe, thus preventing severe shaking of the image detected by the camera. The main body of the walking device is fitted to the inner wall of the pipe by an opening and positioning mechanism formed by multiple opening arms, which plays a positioning role and avoids severe shaking during movement. Furthermore, it can be adjusted according to the inner diameter of the pipe, thus possessing strong versatility. Attached Figure Description

[0011] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the detection state of this utility model;

[0014] Figure 3 This is a schematic diagram of the torque sensor of this utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Push rod; 2. Walking device; 3. Walking device body; 4. Opening and positioning mechanism; 5. Opening arm; 6. Walking wheel; 7. Vision camera; 8. Lead screw; 9. Moving block; 10. Guide rod; 11. Sliding block; 12. Adjusting block; 13. Adjusting arm; 14. Gear motor; 15. Torque sensor. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0017] like Figure 1-3 As shown, this embodiment provides an adjustable pipe inner wall defect detection device, including a push rod 1 that extends into the pipe. The front end of the push rod is provided with a walking device 2 that can be adjusted according to the inner diameter of the pipe. The walking device 2 includes a walking device body 3 that rests on the front end of the push rod 1. The end of the walking device body 3 is provided with an opening and positioning mechanism 4 that fits against the inner wall of the pipe. The opening and positioning mechanism 4 includes opening arms 5 located around the walking device body 3. The front end of the opening arms 5 is provided with walking wheels 6 that fit against the inner wall of the pipe. A vision camera 7 for visually detecting defects in the inner wall of the pipe is installed at the front end of the walking device body 3. The multiple opening arms 5 are adjusted by a synchronous adjustment mechanism. By installing a walking device 2 at the front end of the push rod, which is adjustable according to the inner diameter of the pipe, and mounting the vision camera 7 on the walking device 2, the camera will not shake when the push rod is pushed forward into the pipe, thus preventing severe shaking of the image detected by the camera. The main body of the walking device 2 is fitted against the inner wall of the pipe by an opening and positioning mechanism 4 formed by multiple opening arms 5, which serves a positioning function and avoids severe shaking during movement. Furthermore, it can be adjusted according to the inner diameter of the pipe, thus possessing strong versatility.

[0018] The synchronous adjustment mechanism includes a lead screw 8 mounted on the central axis of the walking device body 3. A moving block 9 is mounted on the lead screw 8 and moves along it. The walking device body 3 has multiple smooth rods 10 arranged parallel to the lead screw 8, and each smooth rod 10 has a sliding block 11 that moves along it. An adjustment block 12 is installed between the sliding block 11 and the moving block 9, and an adjustment arm 13 is hinged between the adjustment block 12 and the opening arm 5. This allows the lead screw to move the moving block, which in turn moves the adjustment block, thus adjusting the opening angle of the adjustment arm relative to the opening arm. This adapts to pipes of different diameters, providing strong versatility.

[0019] The walking device body 3 is equipped with a reduction motor 14 that drives the lead screw to rotate, which facilitates adjustment. It can also be rotated by turning, so the rotation can be designed according to requirements.

[0020] The output shaft of the geared motor 14 is equipped with a torque sensor 15 for detecting the torque of the geared motor 14. When the torque sensor detects that the torque value of the geared motor 14 is greater than the set value, the torque sensor 15 and the traveling wheel at the end of the open arm 5 on the surface come into contact with the inner wall of the pipe. At this time, the controller controls the geared motor 14 to stop working. This makes it convenient to determine whether the open arm is in close contact with the inner wall of the pipe based on the magnitude of the torque.

[0021] The push rod 1 is hinged to the main body 3 of the walker, thus preventing the push rod from vibrating and causing the walker to vibrate. The walking wheels 6 are rubber wheels to avoid scratching the pipes.

[0022] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0023] Working principle: A walking device 2, adjustable according to the inner diameter of the pipe, is installed at the front end of the push rod. A vision camera 7 is mounted on the walking device 2. This prevents the camera from shaking when the push rod is pushed forward into the pipe, thus preventing severe shaking of the image detected by the camera. The main body of the walking device 2 is fitted against the inner wall of the pipe by an opening and positioning mechanism 4 formed by multiple opening arms 5, which serves a positioning function, preventing severe shaking during movement. Furthermore, it can be adjusted according to the inner diameter of the pipe, thus possessing strong versatility.

[0024] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. An adjustable pipe inner wall defect detection device, comprising a push rod (1) extending into the pipe, characterized in that: The front end of the push rod is provided with a walking device (2) that can be adjusted according to the inner diameter of the pipe. The walking device (2) includes a walking device body (3) placed at the front end of the push rod (1). The end of the walking device body (3) is provided with an opening and positioning mechanism (4) that fits against the inner wall of the pipe. The opening and positioning mechanism (4) includes an opening arm (5) located around the walking device body (3). The front end of the opening arm (5) is provided with a walking wheel (6) that fits against the inner wall of the pipe. The front end of the walking device body (3) is equipped with a visual camera (7) for visually inspecting defects in the inner wall of the pipe. The multiple opening arms (5) are adjusted by a synchronous adjustment mechanism.

2. The adjustable pipe inner wall defect detection device according to claim 1, characterized in that: The synchronous adjustment mechanism includes a lead screw (8) on the central axis of the walking device body (3), a moving block (9) that moves along the lead screw (8) is provided on the lead screw (8), a plurality of smooth rods (10) that are parallel to the lead screw (8) are provided on the walking device body (3), and a sliding block (11) that moves along the smooth rod (10) is provided on the smooth rod (10), and an adjustment block (12) is installed between the sliding block (11) and the moving block (9), and an adjustment arm (13) is hinged between the adjustment block (12) and the opening arm (5).

3. The adjustable pipe inner wall defect detection device according to claim 2, characterized in that: The walking device body (3) is equipped with a reduction motor (14) that drives the lead screw to rotate.

4. The adjustable pipe inner wall defect detection device according to claim 3, characterized in that: The output shaft of the geared motor (14) is provided with a torque sensor (15) for detecting the torque of the geared motor (14). When the torque sensor (15) detects that the torque value of the geared motor (14) is greater than the set value, the torque sensor (15) and the traveling wheel at the end of the surface open arm (5) abut against the inner wall of the pipe. At this time, the controller controls the geared motor (14) to stop working.

5. The adjustable pipe inner wall defect detection device according to claim 4, characterized in that: The push rod (1) is hinged to the walking device body (3).

6. The adjustable pipe inner wall defect detection device according to claim 5, characterized in that: The walking wheel (6) is a rubber walking wheel.

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