Heat supply pipeline magnetic powder inspection auxiliary device

Abstract

The utility model discloses a heat supply pipeline magnetic powder inspection auxiliary device which comprises a fixing frame, the fixing frame is U-shaped, two ends of the fixing frame are connected with the same telescopic rod through connecting assemblies, the fixing frame is composed of three telescopic rods which are connected with one another, each telescopic rod comprises an adjusting rod and a hollow cylinder, and the adjusting rods are connected with the hollow cylinders through connecting assemblies. The adjusting rod is in sliding fit with the inner wall of the hollow cylinder, the outer wall of one end of the hollow cylinder is in threaded connection with a positioning rod, the outer wall of the adjusting rod is provided with a plurality of through holes in limiting fit with the positioning rod, the outer wall of the telescopic rod is provided with adjusting frames, the side wall of one adjusting frame is connected with a fixing assembly, and the side walls of the other adjusting frames are connected with arc-shaped plates. Rollers are arranged on the arc-shaped surfaces of the arc-shaped plates; by arranging the telescopic rod and the adjusting frame, the size of the device can be adjusted according to the diameter of the pipeline, the overall shape of the device is regular, no protruding structure exists, and it can be avoided that the protruding structure influences rotation of the device along the outer wall of the pipeline.

Description

Technical Field

[0001] This utility model relates to the technical field of magnetic particle inspection auxiliary devices, and in particular to a magnetic particle inspection auxiliary device for heating pipelines. Background Technology

[0002] Magnetic particle testing, as a non-destructive testing method, is widely used in industrial production for the detection of surface and near-surface defects in metallic materials and components. This technology uses magnetic particles in a magnetic field to reveal defects, offering advantages such as ease of operation, low cost, and high sensitivity, making it particularly suitable for the inspection of pipeline equipment such as steel pipes.

[0003] A search revealed a Chinese patent publication number CN222050078U, which discloses an auxiliary device for magnetic particle inspection of heating pipelines. The device includes a first support column, a support rod, a displacement rod, and an arc-shaped plate. The support rod is located at the right end of the first support column, and the displacement rod is fitted onto the first support column. Displacement frames are fitted onto the support rod and the displacement rod, and an arc-shaped plate is provided on the inner side of the displacement frames. An insertion rod passes through the top of the support rod and the displacement rod, and a pressure plate is provided above the insertion rod. The pressure plate fixes the magnetic particle detector to the insertion rod together with bolts.

[0004] This patent uses an arc-shaped plate on the inner side of the support rod and displacement rod to clamp and fix the pipe. By setting a guide wheel on the inner wall of the arc-shaped plate, the device can rotate along the outer wall of the pipe, which is beneficial for workers to carry out pipe inspection and construction. It is convenient to use, simple to operate, and easy to promote. However, since there are many different specifications of pipes, this patent is not convenient for adjusting the distance between the arc-shaped plates according to the pipe diameter. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an auxiliary device for magnetic particle inspection of heating pipelines.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A magnetic particle inspection auxiliary device for heating pipelines includes a fixed frame, which is U-shaped. Both ends of the fixed frame are connected to the same telescopic rod via connecting components. The fixed frame consists of three interconnected telescopic rods, each including an adjusting rod and a hollow cylinder. The adjusting rod is slidably fitted onto the inner wall of the hollow cylinder. A positioning rod is threaded onto the outer wall of one end of the hollow cylinder. Multiple through holes are provided on the outer wall of the adjusting rod to limit the positioning rod. Adjusting frames are provided on the outer wall of the telescopic rods. One adjusting frame has a fixed component connected to its side wall, while the other adjusting frames have arc-shaped plates connected to their side walls. Rollers are provided on the arc-shaped surface of the arc-shaped plates.

[0008] As a further embodiment of this utility model: the adjustment frame includes a rectangular frame and two screws, the rectangular frame is slidably fitted to the outer wall of the telescopic rod, and the screws are threadedly fitted to the side wall of the rectangular frame.

[0009] As a further embodiment of this utility model: the axes of the two screws are perpendicularly intersecting, and a pressure plate is connected to one end of each screw, with the pressure plate pressing against the side wall of the telescopic rod.

[0010] As a further embodiment of this utility model: the fixing component includes a placement frame, which is fixedly connected to the rectangular frame side wall of an adjustment frame, and a fixing plate is provided on the top outer wall of the placement frame.

[0011] As a further improvement of this utility model: the two ends of the fixing plate are connected to the placement frame by bolts, and the bottom outer wall of the fixing plate is provided with a groove for fixing the magnetic particle flaw detector.

[0012] As a further embodiment of this utility model: the connecting assembly includes a connecting rod and a connecting groove. The connecting rod is fixed to one side wall of a telescopic rod, and the connecting groove is opened in the fixed frame at one end of the telescopic rod near another telescopic rod. The connecting rod is inserted into the connecting groove.

[0013] As a further embodiment of this utility model: the side wall of the connecting groove is provided with a sliding cavity, the inner wall of the sliding cavity is slidably fitted with a connecting rod, the side wall of the connecting rod is provided with a protruding edge, and the outer wall of the protruding edge is connected to the inner wall of the sliding cavity by a spring.

[0014] As a further embodiment of this utility model: the outer wall of one end of the connecting rod and the outer wall of one end of the connecting rod are provided with inclined surfaces that slide against each other, and the side wall of the connecting rod is provided with a limiting hole for one end of the connecting rod to be inserted.

[0015] Compared with the prior art, this utility model provides an auxiliary device for magnetic particle inspection of heating pipelines, which has the following beneficial effects:

[0016] 1. This utility model, by providing a telescopic rod and an adjusting frame, allows for adjustment of the device size according to the pipe diameter. Furthermore, the device has a regular overall shape and no protruding structures, thus avoiding any obstruction to the device's rotation along the pipe's outer wall.

[0017] 2. This utility model, by providing a screw and a pressure plate, allows the pressure plate to abut against the adjusting rod in the telescopic rod and the outer wall of the hollow cylinder, fixing the rectangular frame and facilitating the adjustment of the position of the adjusting frame.

[0018] 3. This utility model, by providing a connecting component, facilitates the connection between the telescopic rod and the fixed frame, making operation convenient.

[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a magnetic particle inspection auxiliary device for heating pipelines proposed in this utility model.

[0021] Figure 2 This is a schematic diagram of the structure of the adjustment frame of the magnetic particle flaw detection auxiliary device for heating pipelines proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the fixing assembly of a magnetic particle flaw detection auxiliary device for heating pipelines proposed in this utility model;

[0023] Figure 4 This is a partial structural schematic diagram of an auxiliary device for magnetic particle inspection of heating pipelines proposed in this utility model.

[0024] In the diagram: 1. Fixed frame; 2. Telescopic rod; 3. Adjusting rod; 4. Hollow cylinder; 5. Positioning rod; 6. Connecting rod; 7. Connecting groove; 8. Sliding cavity; 9. Connecting rod; 10. Spring; 11. Adjusting frame; 12. Arc plate; 13. Fixed assembly; 14. Placement frame; 15. Fixed plate; 16. Rectangular frame; 17. Screw; 18. Pressure plate. Detailed Implementation

[0025] 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.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Example 1

[0028] A magnetic particle inspection auxiliary device for heating pipelines, such as Figures 1 to 3As shown, the device includes a fixed frame 1, which is U-shaped. Both ends of the fixed frame 1 are connected to the same telescopic rod 2 via connecting components. The fixed frame 1 consists of three interconnected telescopic rods 2. Each telescopic rod 2 includes an adjusting rod 3 and a hollow cylinder 4. The adjusting rod 3 is slidably fitted onto the inner wall of the hollow cylinder 4. A positioning rod 5 is threaded onto the outer wall of one end of the hollow cylinder 4. The outer wall of the adjusting rod 3 has multiple through holes that are limited and fitted by the positioning rod 5. An adjusting frame 11 is provided on the outer wall of the telescopic rod 2. One adjusting frame 11 is connected to a fixed component 13 on its side wall, and the other adjusting frames 11 are connected to arc-shaped plates 12 on their side walls. Rollers are provided on the arc-shaped surface of the arc-shaped plates 12.

[0029] The adjustment frame 11 includes a rectangular frame 16 and two screws 17. The rectangular frame 16 is slidably fitted to the outer wall of the telescopic rod 2, and the screws 17 are threadedly fitted to the side wall of the rectangular frame 16. The axes of the two screws 17 are perpendicularly intersecting. One end of each screw 17 is connected to a pressure plate 18, which is pressed tightly against the side wall of the telescopic rod 2.

[0030] The fixing component 13 includes a placement frame 14, which is fixedly connected to the side wall of a rectangular frame 16 of an adjustment frame 11. A fixing plate 15 is provided on the top outer wall of the placement frame 14. The two ends of the fixing plate 15 are connected to the placement frame 14 by bolts. A groove for fixing the magnetic particle flaw detector is provided on the bottom outer wall of the fixing plate 15.

[0031] In use, the telescopic rod 2 connected to the fixed frame 1 is removed. Then, the length of multiple telescopic rods 2 is adjusted according to the diameter of the pipe and fixed by the positioning rod 5. The screw 17 is rotated, and the pressure plate 18 moves away from the side wall of the telescopic rod 2. The rectangular frame 16 can then slide along the outer wall of the telescopic rod 2. The position of the fixing component 13 and the arc plate 12 is adjusted. Then, the screw 17 is rotated, and the pressure plate 18 is pressed and fixed against the outer wall of the telescopic rod 2. The magnetic flaw detector is then fixed to the placement frame 14 by the fixing plate 15. The fixed frame 1 is placed on the side wall of the pipe, and the telescopic rod 2 is connected to the fixed frame 1. The rollers on the arc plate 12 and the magnetic flaw detector are both in contact with the outer wall of the pipe. The user can rotate the device along the outer wall of the pipe to perform flaw detection on the pipe.

[0032] With the telescopic rod 2 and the adjusting frame 11, the size of the device can be adjusted according to the diameter of the pipe. The overall shape of the device is regular and there is no protruding structure, which can avoid the protruding structure affecting the rotation of the device along the outer wall of the pipe.

[0033] With the screw 17 and pressure plate 18 provided, the pressure plate 18 can be pressed against the adjusting rod 3 in the telescopic rod 2 and the outer wall of the hollow cylinder 4 to fix the rectangular frame 16, which facilitates the adjustment of the position of the adjusting frame 11.

[0034] Example 2

[0035] A magnetic particle inspection auxiliary device for heating pipelines is provided in this embodiment, which is based on embodiment 1 and makes the following improvements, such as... Figure 4 As shown, the connecting assembly includes a connecting rod 6 and a connecting groove 7. The connecting rod 6 is fixed to one side wall of a telescopic rod 2. The connecting groove 7 is opened in the fixing frame 1 at one end of the telescopic rod 2 near another telescopic rod 2. The connecting rod 6 is inserted into the connecting groove 7. The side wall of the connecting groove 7 is provided with a sliding cavity 8. The inner wall of the sliding cavity 8 is slidably fitted with a connecting rod 9. The side wall of the connecting rod 9 is provided with a protruding edge. The outer wall of the protruding edge is connected to the inner wall of the sliding cavity 8 by a spring 10. The outer wall of one end of the connecting rod 6 and the outer wall of one end of the connecting rod 9 are provided with inclined surfaces that slidably fit each other. The side wall of the connecting rod 6 is provided with a limiting hole for one end of the connecting rod 9 to be inserted.

[0036] When connecting the telescopic rod 2 to the fixed frame 1, the connecting rod 6 is inserted into the connecting groove 7. During the insertion process, the inclined surface of one end of the connecting rod 6 presses against the inclined surface of one end of the connecting rod 9, causing the connecting rod 9 to move upward. The spring 10 is compressed and deformed. After the connecting rod 6 is fully inserted, the limiting hole is aligned with the connecting rod 9. The spring 10 pushes the connecting rod 9 into the limiting hole and fixes it. When disassembling, pull the two connecting rods 9 at both ends of the telescopic rod 2 in sequence. The connecting rod 9 is disengaged from the limiting hole. At this time, the connecting rod 6 can be removed from the connecting groove 7 and the telescopic rod 2 can be disassembled.

[0037] The telescopic rod 2 is easily connected to the fixed frame 1 by the connection component, making operation convenient.

[0038] Working principle: During use and disassembly, pull the two connecting rods 9 at both ends of the telescopic rod 2 connected to the fixing frame 1 in sequence. The connecting rods 9 disengage from the limiting hole. At this time, the connecting rod 6 can be removed from the connecting groove 7, and the telescopic rod 2 can be disassembled. Then, adjust the length of multiple telescopic rods 2 according to the diameter of the pipe and fix them with the positioning rod 5. Rotate the screw 17, and the pressure plate 18 moves away from the side wall of the telescopic rod 2. The rectangular frame 16 can then slide along the outer wall of the telescopic rod 2. Adjust the position of the fixing component 13 and the arc plate 12. Then rotate the screw 17, and the pressure plate 18 presses against the outer wall of the telescopic rod 2. Secure the device firmly, then fix the magnetic flaw detector to the placement frame 14 via the fixing plate 15. Place the fixing frame 1 on the side wall of the pipe, and insert the connecting rod 6 into the connecting groove 7. During the insertion process, the inclined surface of one end of the connecting rod 6 presses against the inclined surface of one end of the connecting rod 9, causing the connecting rod 9 to move upward. The spring 10 is compressed and deformed. After the connecting rod 6 is fully inserted, the limiting hole is aligned with the connecting rod 9. The spring 10 pushes the connecting rod 9 into the limiting hole and fixes it. The roller on the arc plate 12 and the magnetic flaw detector are both in contact with the outer wall of the pipe. The user can rotate the device along the outer wall of the pipe to perform flaw detection on the pipe.

[0039] 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 magnetic particle flaw detection auxiliary device for heating pipeline, comprising a fixing frame (1), characterized in that, The fixing frame (1) is U-shaped. Both ends of the fixing frame (1) are connected to the same telescopic rod (2) through connecting components. The fixing frame (1) consists of three interconnected telescopic rods (2). The telescopic rod (2) includes an adjusting rod (3) and a hollow cylinder (4). The adjusting rod (3) is slidably fitted to the inner wall of the hollow cylinder (4). A positioning rod (5) is threadedly connected to the outer wall of one end of the hollow cylinder (4). Multiple through holes are opened on the outer wall of the adjusting rod (3) to limit the positioning rod (5). An adjusting frame (11) is provided on the outer wall of the telescopic rod (2). One of the adjusting frames (11) is connected to a fixing component (13) on its side wall. The other adjusting frames (11) are connected to an arc plate (12) on their side walls. Rollers are provided on the arc surface of the arc plate (12).

2. The magnetic powder testing auxiliary device for heating pipeline according to claim 1, characterized in that, The adjustment frame (11) includes a rectangular frame (16) and two screws (17). The rectangular frame (16) is slidably fitted to the outer wall of the telescopic rod (2), and the screws (17) are threadedly fitted to the side wall of the rectangular frame (16).

3. The auxiliary device for magnetic particle inspection of heating pipelines according to claim 2, characterized in that, The axes of the two screws (17) are perpendicularly intersecting. One end of each screw (17) is connected to a pressure plate (18), which is pressed against the side wall of the telescopic rod (2).

4. The magnetic powder testing auxiliary device for heating pipeline according to claim 1, characterized in that, The fixing component (13) includes a placement frame (14), which is fixedly connected to the side wall of the rectangular frame (16) of an adjustment frame (11), and a fixing plate (15) is provided on the top outer wall of the placement frame (14).

5. The magnetic powder testing auxiliary device for heating pipeline according to claim 4, characterized in that, The two ends of the fixing plate (15) are connected to the placement frame (14) by bolts, and the bottom outer wall of the fixing plate (15) is provided with a groove for fixing the magnetic particle flaw detector.

6. The magnetic powder testing auxiliary device for heating pipeline according to claim 1, characterized in that, The connecting assembly includes a connecting rod (6) and a connecting groove (7). The connecting rod (6) is fixed to one side wall of a telescopic rod (2). The connecting groove (7) is opened in the fixing frame (1) at one end of the telescopic rod (2) near another telescopic rod (2). The connecting rod (6) is inserted into the connecting groove (7).

7. The magnetic powder testing auxiliary device for heating pipeline according to claim 6, characterized in that, The connecting groove (7) has a sliding cavity (8) on its side wall. A connecting rod (9) is slidably fitted on the inner wall of the sliding cavity (8). The connecting rod (9) has a protruding edge on its side wall. The outer wall of the protruding edge is connected to the inner wall of the sliding cavity (8) by a spring (10).

8. The magnetic powder testing auxiliary device for heating pipeline according to claim 6, characterized in that, The outer wall of one end of the connecting rod (6) and the outer wall of one end of the connecting rod (9) are provided with inclined surfaces that slide against each other, and the side wall of the connecting rod (6) is provided with a limiting hole for one end of the connecting rod (9) to be inserted.

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