Nondestructive detection device in pressure pipeline

Abstract

The utility model discloses a nondestructive detection device in a pressure pipeline, which comprises V-shaped blocks, a connecting column connected between the V-shaped blocks, a camera connected to the V-shaped blocks, a large gear rotationally connected to the connecting column, a sleeve column connected to the large gear, a telescopic column and an air cylinder connected to the sleeve column, a telescopic end of the air cylinder connected to the telescopic column, and a detection block connected to the telescopic column. The V-shaped block is connected with an adjusting mechanism used for adjusting the height of the connecting column, the connecting column is connected with a limiting ring and a motor, the output end of the motor is connected with a small gear, and the small gear is meshed with the large gear. According to the utility model, the adjustable structure of the supporting rod is utilized, the height of the connecting column can be increased and decreased in the to-be-detected pipeline through stretching and retracting of the supporting rod, the connecting column can be moved to the central position of the to-be-detected pipeline during detection, and large-area detection of the detection block on the pipeline can be completed only by rotating the large gear subsequently.

Description

Technical Field

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

[0002] Pressure piping refers to tubular equipment used to transport gas or liquids under a certain pressure. The scope of its scope is specified as having a maximum working pressure greater than or equal to 0.1MPa, the medium being gas, liquefied gas, steam, or flammable, explosive, toxic, corrosive liquids with a maximum working temperature greater than or equal to the standard boiling point, and a nominal diameter greater than 50mm.

[0003] When it is necessary to inspect the inside of a pressure pipeline, the pipeline itself is divided into used and unused states. The used pipeline needs to cut off the medium connection at both ends and remove the internal medium to facilitate detection. Since the pipeline is large in volume, the operation of removing the medium liquid remains unchanged, so there is a certain amount of medium in the pipeline during detection. The presence of the transport medium will interfere with the movement of the detection equipment in the pipeline. In addition, since most of the existing detection equipment is for shooting detection, the detection effect is general, and the structure cannot be adjusted for pipelines of different diameters. Therefore, the current detection settings have poor adaptability to the detection of pipelines of different diameters.

[0004] Based on this, a non-destructive detection device for pressure pipelines is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems and to provide a non-destructive detection device in a pressure pipeline.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A non-destructive detection device in a pressure pipeline includes V-shaped blocks, connecting columns are connected between the V-shaped blocks, a camera is connected to the V-shaped block, a large gear is rotatably connected to the connecting column, a sleeve column is connected to the large gear, a telescopic column and a cylinder are connected to the sleeve column, the telescopic end of the cylinder is connected to the telescopic column, a detection block is connected to the telescopic column, and an adjustment mechanism for adjusting the height of the connecting column is connected to the V-shaped block.

[0008] Preferably, a limiting ring is connected to the connecting column.

[0009] Preferably, a motor is connected to the connecting column, a small gear is connected to the output end of the motor, and the small gear and the large gear are meshed with each other.

[0010] Preferably, the adjustment mechanism includes a support rod, a sliding groove is provided on the V-shaped block, the support rod is slidably connected to the sliding groove, a clamping block is rotatably connected to the support rod, a gear groove is provided on the V-shaped block, and one end of the support rod is rotatably connected to a roller.

[0011] Preferably, a clamping slot is provided on the slide slot, and one side of the support rod is slidably connected to the clamping slot.

[0012] Preferably, the support rod is connected to a connecting rod, the clamping block is rotatably connected to the connecting rod, the connecting rod is connected to a torsion spring, and the clamping block is connected to a pull rod.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0014] 1. This application adopts a support rod structure and an adjustable structure of the support rod. The support rod can be extended and retracted to allow the connecting column to be raised or lowered in the pipeline to be tested. During testing, the connecting column can be moved to the center position of the pipeline to be tested. Subsequently, the detection block only needs to rotate the large gear to complete large-area testing of the pipeline.

[0015] 2. This application adopts a camera structure and uses the camera in conjunction with a cylinder structure to achieve auxiliary detection. The structure of the support rod is step-adjustable. The step-adjustment here cannot achieve continuous and smooth adjustment within a certain range and has obvious gear limitations. Therefore, the cylinder is telescopically extended to compensate for the needs of detecting pipes of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram showing the structure of a detection device provided in an embodiment of the present utility model arranged in a pipeline is shown;

[0017] Figure 2 The figure shows the overall structure of the detection device provided according to the embodiment of the present utility model;

[0018] Figure 3 It shows a structural schematic diagram of the card block connection provided according to an embodiment of the utility model;

[0019] Figure 4 A schematic structural diagram of a motor connection provided according to an embodiment of the present utility model is shown.

[0020] Legend:

[0021] 1. V-block; 2. Camera; 3. Support rod; 4. Roller; 5. Connecting column; 6. Slide; 7. Clamping slot; 8. Gear slot; 9. Limiting ring; 10. Large gear; 11. Sleeve column; 12. Telescopic column; 13. Detection block; 14. Cylinder; 15. Connecting rod; 16. Torsion spring; 17. Clamping block; 18. Pull rod; 19. Motor; 20. Small gear. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1-4 , the utility model provides a technical solution:

[0024] A non-destructive detection device for a pressure pipeline includes a V-shaped block 1, a connecting column 5 is connected between the V-shaped blocks 1, a camera 2 is connected to the V-shaped block 1, the camera 2 can assist in detection, so as to understand the detection progress of the device, a large gear 10 is rotatably connected to the connecting column 5, a sleeve column 11 is connected to the large gear 10, a telescopic column 12 and a cylinder 14 are connected to the sleeve column 11, the telescopic end of the cylinder 14 is connected to the telescopic column 12, and a detection block 13 is connected to the telescopic column 12. The detection block 13 can emit ultrasonic waves and understand the pipeline condition by receiving the reflection. The detection block 13 is a direct reference to the existing technology and will not be described in detail here. The V-shaped block 1 is connected to an adjustment mechanism for adjusting the height of the connecting column 5.

[0025] Specifically, such as Figure 2 As shown, a limit ring 9 is connected to the connecting column 5 , and the limit ring 9 is provided to limit the position of the large gear 10 to prevent the large gear 10 from sliding on the connecting column 5 .

[0026] Specifically, such as Figure 4 As shown, a motor 19 is connected to the connecting column 5, and a small gear 20 is connected to the output end of the motor 19. The small gear 20 and the large gear 10 are engaged with each other. By driving the motor 19 to operate, the large gear 10 can be driven to rotate, thereby rotating the detection block 13 to a certain angle to complete the detection of the inside of the pipeline.

[0027] Specifically, such as Figure 2 and Figure 3As shown, the adjustment mechanism includes a support rod 3, a slide groove 6 is provided on the V-shaped block 1, the support rod 3 is slidably connected to the slide groove 6, a clamping block 17 is rotatably connected to the support rod 3, a gear groove 8 is provided on the V-shaped block 1, and one end of the support rod 3 is rotatably connected to the roller 4. By setting the clamping block 17, the position of the support rod 3 is stabilized.

[0028] Specifically, such as Figure 2 As shown, a clamping slot 7 is provided on the slide 6, and one side of the support rod 3 is slidably connected to the clamping slot 7. By providing the clamping slot 7, the stability of the support rod 3 sliding in the slide 6 is improved.

[0029] Specifically, such as Figure 3 As shown, the support rod 3 is connected to a connecting rod 15, a clamping block 17 is rotatably connected to the connecting rod 15, a torsion spring 16 is connected to the connecting rod 15, and a pull rod 18 is connected to the clamping block 17. By setting the torsion spring 16, the clamping state of the clamping block 17 can be stabilized, and at the same time, a buffering effect can be achieved to prevent impurities in the pipeline from causing excessive vibration of structures such as the detection block 13, which may cause damage to precision components in the device.

[0030] In summary, the present embodiment provides a nondestructive detection device for pressure pipes. When nondestructive detection is required for the interior of the pressure pipe, the telescopic state of each support rod 3 can be uniformly adjusted. During the adjustment, the pull rod 18 needs to be pulled to rotate the clamping block 17. At this time, the torsion spring 16 structure begins to store force and re-inserts the clamping block 17 into the corresponding gear slot 8 to ensure that the connecting column 5 and the pipe are on the same axis. Subsequently, the cylinder 14 is adjusted to extend or retract so that the detection block 13 can approach the inner wall of the pipe. At this time, the roller 4 can be controlled to rotate so that the device can move in the pipe. During the movement, the electric The motor 19 rotates, so that the detection block 13 can rotate around the connecting column 5, completing the detection of the inside of the pipeline and avoiding the interfering medium on the bottom surface of the pipeline. The rotation of the motor 19 can drive the large gear 10 to rotate, and the detection block 13 and the large gear 10 are an integrated structure. When the cylinder 14 is not extended or retracted, the detection block 13 and the large gear 10 can be equivalent to a structure fixedly connected to each other. Therefore, when the motor 19 rotates, it can synchronously drive the detection block 13 to rotate. The large gear 10 structure rotates around the connecting column 5, so the detection block 13 also rotates around the connecting column 5;

[0031] The roller 4 structure mainly plays the role of driving the device to move in the pipeline. This part of the structure is a relatively mature existing technology, so it will not be described in detail here. The roller 4 is driven by a drive motor, so that the device can move back and forth in the pipeline, thereby sending the detection block 13 into the pipeline for detection operations.

[0032] Since the coverage of the detection equipment is limited, that is, when the sleeve column 11 is deflected downward, the sleeve column 11 structure will be limited by the pinion 20 and cannot be deflected to a vertical downward state, so the detection block 13 cannot detect the lower end of the pipe, but this part of the position can be detected by traditional detection devices, and since a certain amount of impurities often remain at the lower end, in order to avoid corrosion of the detection block 13, the present device effectively prevents the detection block 13 from contacting the impurities at the lower end of the pipe through this structural setting, and during detection, the V-shaped support rod 3 is set symmetrically about the vertical line by default. In this state, the device can maintain structural stability for detection operations. When it is necessary to complete a comprehensive inspection of the pipeline, the pipeline can be rotated and the device can be placed again for inspection, thereby completing a full-scale inspection of the inside of the pipeline.

[0033] Since the detection block 13 is rotatable, when the pipeline is rotated, only one rotation of the pipeline is required to perform a comprehensive inspection of the pipeline. However, for pipelines that have already been installed, the rotation of the structure is inconvenient. By cooperating with existing detection equipment, the device can achieve a comprehensive inspection of the pipeline.

[0034] The above description of the embodiments is intended to enable those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A non-destructive detection device in a pressure pipeline, comprising a V-shaped block (1), characterized in that: A connecting column (5) is connected between the V-shaped blocks (1), a camera (2) is connected to the V-shaped block (1), a large gear (10) is rotatably connected to the connecting column (5), a sleeve column (11) is connected to the large gear (10), a telescopic column (12) and a cylinder (14) are connected to the sleeve column (11), a telescopic end of the cylinder (14) is connected to the telescopic column (12), a detection block (13) is connected to the telescopic column (12), and an adjustment mechanism for adjusting the height of the connecting column (5) is connected to the V-shaped block (1).

2. The non-destructive detection device in a pressure pipeline according to claim 1, characterized in that: A limiting ring (9) is connected to the connecting column (5).

3. The non-destructive detection device in a pressure pipeline according to claim 1, characterized in that: The connecting column (5) is connected to a motor (19), an output end of the motor (19) is connected to a small gear (20), and the small gear (20) and the large gear (10) are meshed with each other.

4. The non-destructive detection device in a pressure pipeline according to claim 1, characterized in that: The adjustment mechanism comprises a support rod (3), a slide groove (6) is provided on the V-shaped block (1), the support rod (3) is slidably connected to the slide groove (6), a clamping block (17) is rotatably connected to the support rod (3), a gear groove (8) is provided on the V-shaped block (1), and one end of the support rod (3) is rotatably connected to a roller (4).

5. The non-destructive detection device in a pressure pipeline according to claim 4, characterized in that: A clamping slot (7) is provided on the sliding slot (6), and one side of the support rod (3) is slidably connected to the clamping slot (7).

6. The non-destructive detection device in a pressure pipeline according to claim 4, characterized in that: The support rod (3) is connected to a connecting rod (15), the clamping block (17) is rotatably connected to the connecting rod (15), the connecting rod (15) is connected to a torsion spring (16), and the clamping block (17) is connected to a pull rod (18).

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