Movable pressure pipeline connector nondestructive testing fixing device

Abstract

The utility model relates to the technical field of pressure pipelines, in particular to a movable fixing device for nondestructive testing of a pressure pipeline connector. A first connecting plate is arranged on the other side of a second connecting plate, moving grooves are formed in the circumferential side of the first connecting plate and the circumferential side of the second connecting plate respectively, two push rods are slidably connected into the two moving grooves respectively, two moving mechanisms are arranged on the four push rods respectively, and the two moving mechanisms are connected with the first connecting plate and the second connecting plate respectively. Each moving mechanism comprises a rectangular groove, a two-way lead screw, a motor and two lead screw nuts, the rectangular groove is formed in one side wall of the moving groove, the motor is fixedly connected to one side wall of the rectangular groove, the two-way lead screw is fixedly connected to the output end of the motor, the position of the push rod can be adjusted, the push rod is attached to the inner wall of the pipeline, and the mounting frame is limited and fixed; detection is facilitated, and the detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure pipelines, in particular to a mobile non-destructive detection fixing device for pressure pipeline interfaces. Background Art

[0002] Pressure piping refers to any pipeline subjected to internal or external pressure, regardless of the medium inside. It is a section of a pipeline used to transport, distribute, mix, separate, discharge, meter, control, and stop the flow of fluids. It is an assembly consisting of pipes, fittings, flanges, bolted connections, gaskets, valves, other components or pressure-bearing parts, and supporting parts.

[0003] When performing mobile testing on the internal interface of a pressure pipe, the detector is generally moved to the interface for testing by a mobile frame. However, since the mobile frame shakes during the testing process, it is easy to cause incomplete testing, affecting the testing effect. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a mobile non-destructive testing and fixing device for pressure pipe interfaces, which can fix the mobile frame after reaching the position, making it convenient for the detector to perform detection.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A mobile pressure pipeline interface non-destructive testing fixing device includes a mounting frame, a second connecting plate is provided on one side of the mounting frame, and a first connecting plate is provided on the other side of the second connecting plate, and the circumferential sides of the first connecting plate and the second connecting plate are both provided with moving grooves, and two push rods are slidably connected in the two moving grooves, and two groups of moving mechanisms are provided on the four push rods, and the two moving mechanisms are respectively connected to the first connecting plate and the second connecting plate, and each group of the moving mechanisms includes a rectangular groove, a bidirectional screw rod, a motor and two screw nuts, the rectangular groove is opened on one side wall of the moving groove, the motor is fixedly connected to one side wall of the rectangular groove, the bidirectional screw rod is fixedly connected to the output end of the motor, and the other side of the bidirectional screw rod is rotatably connected to one side wall of the rectangular groove, the two screw nuts are both threadedly connected to the circumferential side of the bidirectional screw rod, and the two push rods are respectively fixedly connected to one side of the two screw nuts.

[0007] By adopting the above technical solution, the moving mechanism, the first connecting plate, the second connecting plate, the mounting frame, the push rod, and the moving groove cooperate to adjust the position of the push rod so that the push rod fits against the inner wall of the pipe, and the mounting frame is limited and fixed, which is convenient for detection.

[0008] In a preferred example, the present invention can be further configured as follows: two sliding rods are fixedly connected between the side walls of the rectangular groove, and the two screw nuts are both slidably connected to the circumferential sides of the two sliding rods.

[0009] By adopting the above technical solution, the screw nut and the slide rod are slidably matched, which can improve the movement stability of the screw nut.

[0010] In a preferred example, the present invention can be further configured as follows: one side of the four pushing rods is fixedly connected to a connecting rod, one side of the four connecting rods is provided with a supporting head, one side of the four supporting heads is provided with a telescopic mechanism, and the four telescopic mechanisms are respectively connected to the four pushing rods.

[0011] By adopting the above technical solution, the abutting head can improve the fit between the connecting rod, the pushing rod and the inner wall of the pipe.

[0012] In a preferred example, the present invention can be further configured as follows: each set of the telescopic mechanisms includes a spring and a telescopic slot, the telescopic slot is opened on one side of the connecting rod, the spring is fixedly connected to a side wall of the telescopic slot, and the other side of the spring is fixed to the abutting head.

[0013] By adopting the above technical solution, the telescopic mechanism and the abutting head cooperate to automatically adjust the position of the abutting head so that the abutting head can fit the inner wall of the pipe more closely.

[0014] In a preferred example, the present invention can be further configured as follows: the telescopic mechanism also includes a limit groove, a limit rod, a limit block and a connecting groove, the connecting groove is opened on one side of the push rod, the limit groove is opened on a side wall of the connecting groove, the limit rod is fixedly connected to one side of the supporting head, and the limit rod is inserted into the limit groove, and the limit block is fixedly connected to one side of the limit rod.

[0015] By adopting the above technical solution, the connecting groove, the limiting rod and the limiting block can improve the movement stability of the supporting head and prevent the spring from being compressed or bending when it recovers elastically.

[0016] In a preferred example, the present invention can be further configured as follows: three mounting blocks are fixedly connected to the circumferential side of the mounting frame, one side of two of the mounting blocks is fixedly connected to a hydraulic cylinder, one side of the three hydraulic cylinders is provided with a mounting frame, and moving wheels are rotatably connected between the side walls of the three mounting frames.

[0017] By adopting the above technical solution, the hydraulic cylinder, the moving wheels and the installation frame, the installation frame can be easily moved.

[0018] In a preferred example, the present invention can be further configured as follows: the output ends of the three hydraulic cylinders are fixedly connected to connecting rings, the three connecting rings are threadedly connected to threaded rods, and the three threaded rods are respectively fixed to three mounting frames.

[0019] By adopting the above technical solution, the connecting ring and the threaded rod can facilitate the replacement of the moving wheel and the installation frame.

[0020] In summary, the present invention has at least one of the following beneficial technical effects:

[0021] 1. A moving mechanism, a first connecting plate, a second connecting plate, a mounting bracket, a push rod and a moving groove are provided. When the position of the mounting bracket needs to be limited so that it is fixed, the motor is started, and the output end of the motor drives the bidirectional screw to rotate, and the screw nut moves on the surface of the bidirectional screw, and the screw nut drives the push rod to move, so that the push rod leaves the moving groove, so that the push rod can be against the inner wall of the pipe, and the position of the push rod can be adjusted so that the push rod fits with the inner wall of the pipe, so that the mounting bracket is limited and fixed, which facilitates detection and improves the accuracy of detection.

[0022] 2. A push rod, a connecting rod, a supporting head and a telescopic mechanism are provided. When the push rod moves, the push rod will drive the connecting rod and the supporting head to move. When the supporting head is close to the inner wall of the pipe, the spring is in a compressed state. At the same time, the elastic force of the spring will push the supporting head so that the supporting head will fit the inner wall of the pipe, thereby improving the tighter fit between the supporting head and the inner wall of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a perspective view of this embodiment;

[0024] Figure 2 is a perspective cross-sectional view of this embodiment;

[0025] Figure 3 This embodiment Figure 2 A partial enlarged view of point A in the middle;

[0026] Figure 4 This embodiment Figure 2 A partial enlarged view of point B in the middle.

[0027] In the figure, 1. mounting frame; 2. mounting block; 3. hydraulic cylinder; 4. moving wheel; 5. mounting frame; 6. connecting ring; 7. first connecting plate; 8. second connecting plate; 9. supporting head; 10. connecting rod; 11. pushing rod; 12. moving groove; 13. moving mechanism; 1301. rectangular groove; 1302. sliding rod; 1303. bidirectional screw rod; 1304. motor; 1305. screw nut; 14. telescopic mechanism; 1401. spring; 1402. telescopic groove; 1403. limiting groove; 1404. limiting rod; 1405. limiting block; 1406. connecting groove; 15. threaded rod. DETAILED DESCRIPTION

[0028] The present invention will be described in further detail below with reference to the accompanying drawings.

[0029] Example:

[0030] Reference Figure 1-4 The utility model discloses a mobile pressure pipeline interface non-destructive testing fixing device, including a mounting frame 1, a second connecting plate 8 is provided on one side of the mounting frame 1, and a first connecting plate 7 is provided on the other side of the second connecting plate 8, and a moving groove 12 is opened on the circumferential side of the first connecting plate 7 and the second connecting plate 8, and two pushing rods 11 are slidably connected in the two moving grooves 12. Two groups of moving mechanisms 13 are provided on the four pushing rods 11, and the two moving mechanisms 13 are respectively connected to the first connecting plate 7 and the second connecting plate 8. Each group of moving mechanisms 13 includes a rectangular groove 1301, a bidirectional screw rod 1303, a motor 1304 and two screw nuts 1305. The rectangular groove 1301 is opened on one side wall of the moving groove 12, the motor 1304 is fixedly connected to one side wall of the rectangular groove 1301, and the bidirectional screw rod 1303 is fixedly connected At the output end of the motor 1304, and the other side of the bidirectional screw rod 1303 is rotatably connected to one side wall of the rectangular groove 1301, the two screw nuts 1305 are both threadedly connected to the circumferential side of the bidirectional screw rod 1303, and the two push rods 11 are respectively fixedly connected to one side of the two screw nuts 1305. When it is necessary to limit the position of the mounting bracket 1 so that it is fixed, start the motor 1304, and the output end of the motor 1304 drives the bidirectional screw rod 1303 to rotate, and the screw nut 1305 moves on the surface of the bidirectional screw rod 1303. The screw nut 1305 drives the push rod 11 to move, so that the push rod 11 leaves the moving groove 12, so that the push rod 11 can be against the inner wall of the pipe, and the position of the push rod 11 can be adjusted so that the push rod 11 fits against the inner wall of the pipe, so that the mounting bracket 1 is limited and fixed, which is convenient for detection.

[0031] Two slide rods 1302 are fixedly connected between the side walls of the rectangular groove 1301, and two screw nuts 1305 are slidingly connected to the circumferential sides of the two slide rods 1302. The screw nuts 1305 and the slide rods 1302 are slidably matched to improve the movement stability of the screw nuts 1305.

[0032] One side of the four pushing rods 11 is fixedly connected to the connecting rod 10, and one side of the four connecting rods 10 is provided with a butt head 9. One side of the four butt heads 9 is provided with a telescopic mechanism 14. The four telescopic mechanisms 14 are respectively connected to the four pushing rods 11. The butt heads 9 can improve the fit between the connecting rod 10, the pushing rod 11 and the inner wall of the pipe. Each set of telescopic mechanisms 14 includes a spring 1401 and a telescopic slot 1402. The telescopic slot 1402 is opened on one side of the connecting rod 10, the spring 1401 is fixedly connected to one side wall of the telescopic slot 1402, and the other side of the spring 1401 is fixed to the butt head 9. When the pushing rod 11 moves, the pushing rod 11 will drive the connecting rod 10 and the butt head 9 to move. When the butt head 9 approaches the inner wall of the pipe, the spring 1401 is in a compressed state. At the same time, the elastic force of the spring 1401 will push the butt head 9 so that the butt head 9 will fit the inner wall of the pipe, thereby improving the closer fit between the butt head 9 and the inner wall of the pipe.

[0033] The telescopic mechanism 14 also includes a limit slot 1403, a limit rod 1404, a limit block 1405 and a connecting slot 1406. The connecting slot 1406 is opened on one side of the push rod 11, and the limit slot 1403 is opened on a side wall of the connecting slot 1406. The limit rod 1404 is fixedly connected to one side of the supporting head 9, and the limit rod 1404 is inserted into the limit slot 1403. The limit block 1405 is fixedly connected to one side of the limit rod 1404. The connecting slot 1406, the limit rod 1404 and the limit block 1405 can improve the movement stability of the supporting head 9 while preventing the spring 1401 from being compressed or bending and deforming when it elastically recovers.

[0034] Three mounting blocks 2 are fixedly connected to the circumferential side of the mounting frame 1, and a hydraulic cylinder 3 is fixedly connected to one side of each of the two mounting blocks 2. A mounting frame 5 is provided on one side of each of the three hydraulic cylinders 3, and moving wheels 4 are rotatably connected between the side walls of the three mounting frames 5. The hydraulic cylinder 3, the moving wheel 4 and the mounting frame 5 can facilitate the movement of the mounting frame 1.

[0035] The output ends of the three hydraulic cylinders 3 are fixedly connected to a connecting ring 6, and threaded rods 15 are threadedly connected to the three connecting rings 6. The three threaded rods 15 are respectively fixed to the three mounting frames 5. A threaded groove is provided on the circumferential inner wall of the connecting ring 6. The threaded groove in the connecting ring 6 is threadedly connected to the threaded rod 15. The connecting ring 6 and the threaded rod 15 can facilitate the replacement of the moving wheel 4 and the mounting frame 5.

[0036] The implementation principle of the above embodiment is as follows: when it is necessary to limit the position of the mounting bracket 1 so that it is fixed, the motor 1304 is started, and the output end of the motor 1304 drives the bidirectional screw rod 1303 to rotate, and the screw nut 1305 moves on the surface of the bidirectional screw rod 1303, and the screw nut 1305 drives the pushing rod 11 to move, so that the pushing rod 11 leaves the moving groove 12, so that the pushing rod 11 can be against the inner wall of the pipe, and the position of the pushing rod 11 can be adjusted so that the pushing rod 11 is in contact with the inner wall of the pipe. When the pushing rod 11 moves, the pushing rod 11 will drive the connecting rod 10 and the abutting head 9 to move. When the abutting head 9 is close to the inner wall of the pipe, the spring 1401 is in a compressed state. At the same time, the elastic force of the spring 1401 will push the abutting head 9 so that the abutting head 9 will be in contact with the inner wall of the pipe, thereby improving the tighter contact between the abutting head 9 and the inner wall of the pipe, so that the mounting bracket 1 is limited and fixed, which is convenient for detection and improves the accuracy of detection.

[0037] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0038] The embodiments of this specific implementation method are all preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A mobile pressure pipe interface non-destructive testing fixture, comprising a mounting frame (1), characterized in that: A second connecting plate (8) is provided on one side of the mounting frame (1), and a first connecting plate (7) is provided on the other side of the second connecting plate (8). The circumferential sides of the first connecting plate (7) and the second connecting plate (8) are both provided with moving grooves (12), and two pushing rods (11) are slidably connected in the two moving grooves (12). Two groups of moving mechanisms (13) are provided on the four pushing rods (11), and the two moving mechanisms (13) are respectively connected to the first connecting plate (7) and the second connecting plate (8), and each group of the moving mechanisms (13) comprises a rectangular groove (1301), a bidirectional screw rod (1303), A motor (1304) and two screw nuts (1305), wherein the rectangular slot (1301) is provided on a side wall of the movable slot (12), the motor (1304) is fixedly connected to a side wall of the rectangular slot (1301), the bidirectional screw (1303) is fixedly connected to an output end of the motor (1304), and the other side of the bidirectional screw (1303) is rotatably connected to a side wall of the rectangular slot (1301), the two screw nuts (1305) are both threadedly connected to the circumferential side of the bidirectional screw (1303), and the two push rods (11) are respectively fixedly connected to one side of the two screw nuts (1305).

2. A mobile pressure pipe interface nondestructive testing fixture according to claim 1, characterized in that: Two sliding rods (1302) are fixedly connected between the side walls of the rectangular groove (1301), and the two screw nuts (1305) are slidably connected to the circumferential sides of the two sliding rods (1302).

3. A mobile pressure pipe interface nondestructive testing fixture according to claim 1, characterized in that: One side of the four pushing rods (11) is fixedly connected to a connecting rod (10), one side of the four connecting rods (10) is provided with a butting head (9), one side of the four butting heads (9) is provided with a telescopic mechanism (14), and the four telescopic mechanisms (14) are respectively connected to the four pushing rods (11).

4. A mobile pressure pipe interface nondestructive testing fixture according to claim 3, characterized in that: Each group of the telescopic mechanisms (14) comprises a spring (1401) and a telescopic slot (1402), wherein the telescopic slot (1402) is opened on one side of the connecting rod (10), the spring (1401) is fixedly connected to a side wall of the telescopic slot (1402), and the other side of the spring (1401) is fixed to the abutting head (9).

5. A mobile pressure pipe interface nondestructive testing fixture according to claim 4, characterized in that: The telescopic mechanism (14) also includes a limit groove (1403), a limit rod (1404), a limit block (1405) and a connecting groove (1406), wherein the connecting groove (1406) is provided on one side of the pushing rod (11), the limit groove (1403) is provided on a side wall of the connecting groove (1406), the limit rod (1404) is fixedly connected to one side of the supporting head (9), and the limit rod (1404) is inserted into the limit groove (1403), and the limit block (1405) is fixedly connected to one side of the limit rod (1404).

6. The mobile pressure pipe interface nondestructive testing fixture according to claim 1, characterized in that: Three mounting blocks (2) are fixedly connected to the circumferential side of the mounting frame (1); one side of two mounting blocks (2) is fixedly connected to a hydraulic cylinder (3); one side of the three hydraulic cylinders (3) is provided with a mounting frame (5); and moving wheels (4) are rotatably connected between the side walls of the three mounting frames (5).

7. A mobile pressure pipe interface nondestructive testing fixture according to claim 6, characterized in that: The output ends of the three hydraulic cylinders (3) are fixedly connected to a connecting ring (6), the three connecting rings (6) are all threadedly connected to threaded rods (15), and the three threaded rods (15) are respectively fixed to three mounting frames (5).

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