A device for detecting pipe defects without removing the outer coating

Abstract

This utility model discloses a device for detecting defects in pipe bodies without removing the outer coating. It includes an L-shaped support frame with two bearing seats fixedly connected to the top. The inner walls of the bearings on the two bearing seats are fixedly connected to the same drive screw. A screw nut is fitted onto the drive screw, and the screw nut is compatible with the drive screw. A movable seat is fixedly connected to the outer wall of the screw nut. A mounting plate is fixedly connected to the bottom of the movable seat, and a support is fixedly connected to the bottom of the mounting plate. A hanging plate is mounted on the support, and an ultrasonic flaw detector is fixedly connected to the bottom of the hanging plate. Two slots are provided on one side of the hanging plate, and two pins are provided on one side of the support. The two pins are fixedly connected to the same fixing plate, and a fixing seat is fixedly connected to the fixing plate on the side away from the pins. This utility model is simple to operate, requiring no professional tools or cumbersome disassembly and assembly steps, greatly shortening maintenance and repair time and significantly improving disassembly and assembly efficiency and convenience.

Description

Technical Field

[0001] This utility model relates to the field of pipe defect detection technology, and in particular to a device for detecting pipe defects without removing the covering layer. Background Technology

[0002] If pipelines and pipe bodies have defects such as cracks, corrosion, or inclusions during industrial production, transportation, and use, it may lead to leaks, ruptures, or even serious safety accidents. In order to prevent accidents and protect the safety of personnel and the site environment, it is necessary to detect defects in the pipe body. The surface of the pipe body is usually covered with a coating layer to effectively protect the pipe body. To protect the coating layer, ultrasonic flaw detectors are generally used to detect defects in the pipe body. However, most pipe body defect detection devices in the current technology still have problems that need to be solved.

[0003] Most existing pipe defect detection devices use screws to fix the ultrasonic flaw detector to the moving parts of the device. The moving parts move to move the ultrasonic flaw detector to detect defects in the pipe. However, the screw fixing method requires special tools for disassembly and assembly, which is time-consuming, inconvenient, and makes it difficult to inspect and maintain the ultrasonic flaw detector. Therefore, it is necessary to design a device for detecting pipe defects without removing the coating to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for detecting defects in pipe bodies without removing the outer coating.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for detecting defects in pipe bodies without removing the outer coating includes an L-shaped support frame. Two bearing seats are fixedly connected to the top of the L-shaped support frame. A common drive screw is fixedly connected to the inner wall of the inner ring of the bearings on the two bearing seats. A screw nut is fitted onto the drive screw, and the screw nut is compatible with the drive screw. A movable seat is fixedly connected to the outer wall of the screw nut. A mounting plate is fixedly connected to the bottom of the movable seat. A support is fixedly connected to the bottom of the mounting plate. A hanging plate is provided on the support. An ultrasonic flaw detector is fixedly connected to the bottom of the hanging plate. Two slots are provided on one side of the hanging plate. Two pins are provided on one side of the support. The two pins are fixedly connected to a common fixing plate. A fixing seat is fixedly connected to the fixing plate on the side away from the pins. A roller is rotatably connected to the fixing seat. A guide plate is provided on one side of the roller. The guide plate is fixedly connected to the L-shaped support frame. The guide plate near the roller consists of an inclined surface and a straight surface. Due to the use of a movable ultrasonic flaw detector... The technology allows the pin to be inserted into the slot, thus restricting the position of the mounting plate. This allows the ultrasonic flaw detector to continue moving and inspecting the pipe. Returning the ultrasonic flaw detector to its initial position allows the pin to be removed from the slot, releasing the restriction on the mounting plate and allowing it to be removed from the bracket, thus detaching the ultrasonic flaw detector. This effectively solves the problem mentioned in the background art, where most existing pipe defect detection devices use screws to fix the ultrasonic flaw detector to the moving parts, relying on the moving parts to move the ultrasonic flaw detector for defect detection. However, screw fixing requires specialized tools for disassembly and maintenance, which is time-consuming, inconvenient, and hinders the inspection and maintenance of the ultrasonic flaw detector. This technology achieves simple operation, requiring no specialized tools or cumbersome disassembly steps, significantly shortening maintenance and inspection time, and significantly improving disassembly and assembly efficiency and convenience.

[0007] As a further embodiment of this utility model, the mounting plate is securely connected to the back shell of the ultrasonic flaw detector by means of screws.

[0008] As a further embodiment of this utility model, a first limiting rod is provided at both ends of the fixing plate, the fixing plate is slidably connected to the first limiting rod, and a square plate is fixedly connected to the same side of the two first limiting rods, the square plate being fixedly connected to the bottom of the mounting plate.

[0009] As a further embodiment of this utility model, a second limiting rod is provided at both ends of the movable seat, the movable seat is slidably connected to the second limiting rod, and the second limiting rod is fixedly connected to the L-shaped support frame.

[0010] As a further embodiment of this utility model, the bottom of the L-shaped support frame is fixedly connected to a base, and the top of the base is fixedly connected to a support plate, which is positioned directly below the ultrasonic flaw detector.

[0011] As a further embodiment of this utility model, a motor is fixedly connected to one side of the L-shaped support frame.

[0012] As a further embodiment of this invention, the output end of the motor and the drive screw are connected by a coupling.

[0013] The beneficial effects of this utility model are as follows:

[0014] Because it employs a technique that allows the pin to be inserted into the slot during the movement of the ultrasonic flaw detector, the position of the mounting plate is restricted when the pin is inserted. This allows the ultrasonic flaw detector to continue moving and inspecting the pipe. Returning the ultrasonic flaw detector to its initial position allows the pin to be removed from the slot, releasing the restriction on the mounting plate, allowing the mounting plate to be removed from the bracket, and thus detaching the ultrasonic flaw detector. This effectively solves the problem mentioned in the background art, where most existing pipe defect detection devices use screws to fix the ultrasonic flaw detector to the moving parts of the device. The moving parts then move the ultrasonic flaw detector to inspect the pipe, but this screw-fixed method requires specialized tools for disassembly and maintenance, which is time-consuming, inconvenient, and hinders the inspection and maintenance of the ultrasonic flaw detector. This invention achieves a simple operation, requiring no specialized tools or cumbersome disassembly and assembly steps, greatly shortening maintenance and inspection time, and significantly improving disassembly and assembly efficiency and convenience. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a device for detecting pipe defects without removing the outer coating, as proposed in this utility model.

[0016] Figure 2 This is a partial structural diagram of a device for detecting pipe defects without removing the outer coating, as proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the movable seat structure of a tube defect detection device that does not remove the outer coating layer proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the hanging plate structure of a pipe defect detection device that does not remove the coating layer proposed in this utility model;

[0019] Figure 5 This is a schematic cross-sectional view of the hanging plate of a device for detecting defects in pipes without removing the outer coating, as proposed in this utility model.

[0020] In the diagram: 1. L-shaped support frame; 2. Bearing housing; 3. Drive screw; 4. Screw nut; 5. Movable seat; 6. Mounting plate; 7. Support; 8. Hanging plate; 9. Ultrasonic flaw detector; 10. Slot; 11. Pin; 12. Fixing plate; 13. Fixing seat; 14. Roller; 15. Guide plate; 16. First limit rod; 17. Square plate; 18. Second limit rod; 19. Base; 20. Support plate; 21. Motor. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-5A device for detecting defects in pipe bodies without removing the outer coating includes an L-shaped support frame 1. Two bearing seats 2 are fixedly connected to the top of the L-shaped support frame 1. The inner walls of the inner rings of the bearings on the two bearing seats 2 are fixedly connected to the same drive screw 3. A screw nut 4 is fitted onto the drive screw 3, and the screw nut 4 is compatible with the drive screw 3. A movable seat 5 is fixedly connected to the outer wall of the screw nut 4. A mounting plate 6 is fixedly connected to the bottom of the movable seat 5. A support 7 is fixedly connected to the bottom of the mounting plate 6. A hanging plate 8 is provided on the support 7. An ultrasonic flaw detector 9 is fixedly connected to the mounting plate 8. Two slots 10 are provided on one side of the mounting plate 8, and two pins 11 are provided on one side of the support 7. The two pins 11 are fixedly connected to the same fixing plate 12. A fixing seat 13 is fixedly connected to the fixing plate 12 on the side away from the pins 11. A roller 14 is rotatably connected to the fixing seat 13. A guide plate 15 is provided on one side of the roller 14. An L-shaped support frame 1 is fixedly connected to the guide plate 15. The guide plate 15, on the side near the roller 14, consists of an inclined surface and a straight surface. Due to the use of a movable ultrasonic flaw detector... The ultrasonic flaw detector utilizes a technique where a pin is inserted into a slot. When the pin is inserted, the position of the mounting plate is restricted, thus installing the ultrasonic flaw detector. The detector can then continue moving to inspect the pipe. Returning the detector to its initial position allows the pin to be removed from the slot, releasing the restriction on the mounting plate and allowing it to be removed from the bracket. This effectively solves the problem mentioned in the background section where most existing pipe defect detection devices use screws to fix the ultrasonic flaw detector to the moving parts, relying on the moving parts to move the ultrasonic flaw detector for defect detection. However, screw fixing requires specialized tools for disassembly and maintenance, which is time-consuming, inconvenient, and hinders the inspection and maintenance of the ultrasonic flaw detector. This invention achieves simple operation, requiring no specialized tools or cumbersome disassembly steps, significantly shortening maintenance and inspection time, and greatly improving disassembly and assembly efficiency and convenience.

[0023] In this embodiment, the mounting plate 8 is securely connected to the back shell of the ultrasonic flaw detector 9 by means of screws.

[0024] In this embodiment, both ends of the fixing plate 12 are provided with first limiting rods 16, the fixing plate 12 is slidably connected to the first limiting rods 16, and a square plate 17 is fixedly connected to the same side of the two first limiting rods 16. The square plate 17 is fixedly connected to the bottom of the mounting plate 6. When the fixing plate 12 moves, it will move along the first limiting rods 16 to ensure the stability of the fixing plate 12 when it moves, so that the pin 11 can be inserted into the slot 10.

[0025] In this embodiment, the two ends of the movable seat 5 are provided with second limiting rods 18. The movable seat 5 is slidably connected to the second limiting rods 18. The second limiting rods 18 are fixedly connected to the L-shaped support frame 1. When the movable seat 5 moves, it will move along the second limiting rods 18 to ensure the stability of the movable seat 5 when it moves.

[0026] In this embodiment, a base 19 is fixedly connected to the bottom of the L-shaped support frame 1, and a support plate 20 is fixedly connected to the top of the base 19. The support plate 20 is positioned directly below the ultrasonic flaw detector 9. The tube to be tested is placed on the support plate 20. The top of the support plate 20 is curved, which can ensure the stability of the tube.

[0027] In this embodiment, a motor 21 is fixedly connected to one side of the L-shaped support frame 1.

[0028] In this embodiment, the output end of the motor 21 and the drive screw 3 are connected by a coupling.

[0029] Working principle: In use, place the pipe body on the support plate 20, hang the hanging plate 8 on the support 7, start the ultrasonic flaw detector 9, and make the hanging plate 8 press against the support 7. It is powered by an external power supply. The motor 21 is started via the external controller. The output of the motor 21 drives the coupling to rotate, which in turn drives the drive screw 3 to rotate. The drive screw 3 then moves the screw nut 4, which in turn moves the movable seat 5 along the second limit rod 18. The movement of the movable seat 5 moves the mounting plate 6, which in turn moves the support 7. When the mounting plate 6 moves, the bracket 7 will move the hanging plate 8, which in turn will move the ultrasonic flaw detector 9. The movement of the mounting plate 6 will also move the square plate 17, which in turn will move the first limit rod 16. The first limit rod 16 will then move the fixing plate 12, which will move the pin 11. The fixing plate 12 will also move the fixing seat 13, which will then move the roller 14. The roller 14 will contact the inclined surface of the guide plate 15. If the roller 14 continues to move, it will move towards the bracket 7. Moving the roller 14 a certain distance in the direction of the guide plate 15 will cause the fixed plate 12 to move, which in turn will drive the pin 11 to move. When the roller 14 moves to the straight surface of the guide plate 15, the pin 11 will pass through the bracket 7 and insert into the slot 10, thus restricting the position of the hanging plate 8. The end of the pin 11 away from the fixed base 13 is a conical surface, which causes the drive screw 3 to continue rotating, allowing the ultrasonic flaw detector 9 to continue to move in a straight line. The ultrasonic flaw detector 9 inspects the pipe body, and the probe of the ultrasonic flaw detector 9 is slowly moved to scan along the surface of the pipe body. The ultrasonic flaw detector 9 is used to determine the type and location of defects such as cracks and corrosion based on the time, amplitude, and shape of the reflected echo. The detected data is fed back to the computer on the peripheral device. After the detection is completed, the output end of the motor 21 is rotated in reverse, which allows the ultrasonic flaw detector 9 to return to its initial position. The roller 14 is disengaged from the guide plate 15. Moving the roller 14 away from the support 7 allows the pin 11 to be removed from the slot 10, thus releasing the restriction on the hanging plate 8. The ultrasonic flaw detector 9 and the hanging plate 8 can then be removed for maintenance of the ultrasonic flaw detector 9.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for detecting defects in pipe body without removing the coating, comprising an L-shaped support frame (1), characterized in that, Two bearing seats (2) are fixedly connected to the top of the L-shaped support frame (1). The inner walls of the bearings on the two bearing seats (2) are fixedly connected to the same drive screw (3). The drive screw (3) is fitted with a screw nut (4). The screw nut (4) is adapted to the drive screw (3). A movable seat (5) is fixedly connected to the outer wall of the screw nut (4). A mounting plate (6) is fixedly connected to the bottom of the movable seat (5). A support (7) is fixedly connected to the bottom of the mounting plate (6). A hanging plate (8) is provided on the support (7). An ultrasonic device is fixedly connected to the bottom of the hanging plate (8). The flaw detector (9) has two slots (10) on one side of the mounting plate (8) and two pins (11) on one side of the support (7). The two pins (11) are fixedly connected to the same fixing plate (12). The fixing plate (12) is fixedly connected to a fixing seat (13) on the side away from the pins (11). A roller (14) is rotatably connected to the fixing seat (13). A guide plate (15) is provided on one side of the roller (14). The guide plate (15) is fixedly connected to an L-shaped support frame (1). The guide plate (15) is composed of an inclined surface and a straight surface on the side near the roller (14).

2. The device for detecting pipe defects without removing the outer coating as described in claim 1, characterized in that, The mounting plate (8) is fastened to the back shell of the ultrasonic flaw detector (9) by means of screws.

3. The device for detecting pipe defects without removing the outer coating as described in claim 1, characterized in that, Both ends of the fixing plate (12) are provided with first limiting rods (16), the fixing plate (12) is slidably connected to the first limiting rods (16), and a square plate (17) is fixedly connected to the same side of the two first limiting rods (16), and the square plate (17) is fixedly connected to the bottom of the mounting plate (6).

4. The device for detecting pipe defects without removing the outer coating as described in claim 1, characterized in that, The movable seat (5) is provided with a second limiting rod (18) at both ends. The movable seat (5) is slidably connected to the second limiting rod (18), and the second limiting rod (18) is fixedly connected to the L-shaped support frame (1).

5. The device for detecting pipe defects without removing the outer coating as described in claim 4, characterized in that, The bottom of the L-shaped support frame (1) is fixedly connected to a base (19), and the top of the base (19) is fixedly connected to a support plate (20). The support plate (20) is located directly below the ultrasonic flaw detector (9).

6. The device for detecting pipe defects without removing the outer coating as described in claim 5, characterized in that, A motor (21) is fixedly connected to one side of the L-shaped support frame (1).

7. The device for detecting pipe defects without removing the outer coating as described in claim 6, characterized in that, The output end of the motor (21) and the drive screw (3) are connected by a coupling.

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