Pipeline leak detection device

Abstract

The invention relates to a pipeline leak detection device, and relates to the technical field of pipeline detection. The device comprises a mounting block, a driving assembly and a plurality of detection assemblies, the driving assembly is arranged on the mounting block and used for driving the mounting block to move, the plurality of detection assemblies are arranged on the mounting block, the plurality of detection assemblies are radially distributed with the center of the mounting block as the circle center, each detection assembly comprises a connecting plate, a scanner and a plurality of connecting rods, and the connecting plates are arranged on the mounting block; the scanner is arranged on the connecting plate, one end of each connecting rod is arranged on the connecting plate, the scanner is located among the connecting rods, and the connecting rods are evenly distributed along the peripheral side of the scanner. The detection device can stably move in the pipeline, and the scanner is always aligned with the inner wall of the pipeline to carry out scanning detection.

Description

Technical Field

[0001] The present application relates to the field of pipeline detection, and in particular to a pipeline leakage detection device. Background Art

[0002] Since land oil and gas pipelines are often buried underground, it is extremely difficult to detect if a pipeline ruptures, so regular inspections are required.

[0003] At present, an annular detection device is usually used for pipeline inspection. The annular detection device is inserted into the pipeline. A number of probes are arranged on the annular detection device to detect the inner wall of the pipeline. When the annular detection device is driven to move along the pipeline, the annular detection device is very likely to tip over, so that the probes cannot always be aligned with the inner wall of the pipeline for inspection, which affects the detection of pipeline cracks. Therefore, there is room for improvement. Summary of the invention

[0004] In order to improve the problem of poor stability of the detection device when moving in a pipeline, the present application provides a pipeline leak detection device.

[0005] The present application provides a pipeline leak detection device that adopts the following technical solution: A pipeline leak detection device, comprising: Mounting blocks; A driving assembly, disposed on the mounting block, and used for driving the mounting block to move; A plurality of detection components are arranged on the mounting block, and the plurality of detection components are radially arranged with the center of the mounting block as the center of the circle. The detection components include a connecting plate, a scanner and a plurality of connecting rods. The connecting plate is arranged on the mounting block, the scanner is arranged on the connecting plate, one end of the connecting rod is arranged on the connecting plate, the scanner is located between the plurality of connecting rods, and the plurality of connecting rods are evenly arranged along the circumference of the scanner.

[0006] By adopting the above technical solution, when in use, the mounting block is placed in the pipeline to be inspected, and the ends of several connecting rods are made to abut against the inner wall of the pipeline so that the mounting block is located on the central axis of the pipeline. At this time, the connecting rod plays a supporting role, so that the entire detection device will not flip over in the pipeline, thereby ensuring that the scanner on the connecting plate is always aligned with the inner wall of the pipeline. Then the driving component is started to drive the mounting block to move in the pipeline. Due to the limitation of the connecting rod, the connecting rod slides on the inner wall of the pipeline, so that the entire detection device can only move along the trajectory of the pipeline, thereby improving the stability of the movement of the detection device.

[0007] Several scanners are evenly distributed around the mounting block. When the mounting block is located at a certain point of the pipeline, several scanners can perform a comprehensive scan of the inner wall of the pipeline around the point. Driven by the mounting block, the scanner moves along the length of the pipeline, thereby scanning the entire inner wall of the pipeline to detect pipeline cracks. The connecting rod surrounds the scanner, so that the connecting rod ensures the stable movement of the detection device and also protects the scanner to prevent the scanner from bumping.

[0008] Optionally, the driving component includes: A rotating motor is arranged on the mounting block; A rotating rod, the rotating rod is coaxial with the mounting block and the rotating rod is rotatably connected to the mounting block; The propeller is coaxially fixed on the rotating rod.

[0009] By adopting the above technical solution, the rotating motor is started to drive the rotating rod to rotate, thereby driving the propeller to rotate. The propeller rotates in the air through the blades, pushing the air backwards, thereby obtaining a reaction force, that is, a propulsion force, to move the mounting block forward, so as to achieve the effect of moving the entire detection device in the pipeline.

[0010] Optionally, a rubber pad is provided on one end of the connecting rod away from the mounting block.

[0011] By adopting the above technical solution, when the mounting block is placed in the pipeline, the rubber pad at the end of the connecting rod abuts against the inner wall of the pipeline. When the mounting block moves in the pipeline, the rubber pad slides on the inner wall of the pipeline to play a protective role, thereby making it difficult for the end of the connecting rod to scratch the inner wall of the pipeline, thereby avoiding damage to the pipeline by the detection device.

[0012] Optionally, a probe is provided on the connecting rod.

[0013] By adopting the above technical solution, several connecting rods surround the scanner, so that the probes on the connecting rods detect the edge of the scanner's scanning range to avoid the situation of incomplete inspection. At the same time, the probes on the connecting rods located in front of the scanner will detect the inner wall of the pipeline before the scanner scans, and then the scanner will scan, while the probes on the connecting rods located behind the scanner will follow the scanner to the position scanned by the scanner, thereby achieving the effect of multiple inspections of the pipeline, avoiding omissions, and improving the accuracy of detection.

[0014] Optionally, a rotating assembly is provided on the mounting block, the rotating assembly is connected to the connecting plate and is used to drive the connecting plate to rotate, and the rotating assembly includes: A rotating bevel gear is coaxially sleeved on the rotating rod, and the rotating bevel gear is fixed to the rotating rod; A plurality of transmission bevel gears are rotatably connected to the mounting block, the plurality of transmission bevel gears correspond to the connecting plate one by one, the transmission bevel gears are fixed to the connecting plate, and the transmission bevel gears are meshed with the rotating bevel gears.

[0015] By adopting the above technical solution, when the rotating motor drives the rotating rod to drive the propeller to rotate, so that the detection device moves in the pipeline, the connecting rod and the scanner move synchronously, and the rotating rod rotates while also driving the rotating bevel gear to rotate, thereby driving a number of transmission bevel gears to rotate synchronously, so that the connecting rod revolves around the scanning piece, so that the connecting rods before and after the scanner are constantly alternating, and after the probe on a certain connecting rod is damaged, the probes on the remaining connecting rods can be rotated to the position where the probe on the connecting rod was originally to be detected for detection, that is, while the mounting block drives the scanner to scan the interior of the entire pipeline, the probes around each scanner synchronously follow the mounting block to move and move in a circle, reducing the influence of the damaged probe on the pipeline detection, making it less likely to miss the detection, and improving the accuracy of pipeline crack inspection.

[0016] Optionally, one end of the connecting rod close to the mounting block is hinged to the mounting block via a torsion spring, and the torsion spring is used to drive the plurality of connecting rods away from each other.

[0017] By adopting the above technical solution, the torsion spring makes the connecting rod open in the initial state, so that the end of the connecting rod away from the mounting block is close to the mounting block, that is, the diameter of the entire detection device is small, which is convenient for inserting the detection device into the pipeline.

[0018] Optionally, a mounting ring is provided on the detection assembly, and a plurality of the connecting rods are located in the mounting ring, and the mounting ring can move on the connecting rods toward or away from the mounting block.

[0019] By adopting the above technical solution, when the detection device is placed in the pipeline, the mounting ring is moved to make the mounting ring move in the direction away from the mounting block. Since the diameter of the mounting ring is fixed, the torsion spring makes the connecting rod always abut against the inner wall of the mounting ring, so that the mounting ring gathers the several connecting rods in the mounting ring during the movement, so that the several connecting rods are close to each other, that is, the end of the connecting rod away from the connecting plate is away from the mounting block, so that the distance from the end of the connecting rod to the mounting block is farther, so that the overall diameter of the detection device becomes larger, so that the rubber pad on the connecting rod abuts against the inner wall of the pipe, thereby supporting the detection device in the pipe and preventing the detection device from flipping over.

[0020] Optionally, several of the mounting rings are connected by telescopic rods, and the mounting block is provided with a moving component that drives the several telescopic rods to move synchronously.

[0021] By adopting the above technical solution, when it is necessary to open or merge the connecting rods to adapt to pipes of different diameters, the moving assembly is driven to drive several mounting rings to move synchronously the same distance, so that all the connecting rods on the entire detection device have the same rotation angle, that is, the distance from the mounting block to the end of the connecting rod is consistent, so that after the connecting rod is contracted or expanded, the mounting block is always the center of the entire detection device, and it is ensured that the mounting block is also located on the central axis of the pipe, so that the distance from each scanner to the inner wall of the pipe is equal, thereby achieving uniform scanning of the entire circle of the pipe.

[0022] Optionally, the mobile component includes: A moving ring is rotatably connected to the mounting block, and a bolt is threadedly connected to the mounting block, and an end of the bolt can abut against the moving ring to fix the moving ring on the mounting block; A plurality of moving rods, the moving rods correspond to the telescopic rods one by one, one end of the moving rod is hinged on the moving ring, and the other end is hinged on the telescopic rod, and the moving ring rotates to drive the moving rod to drive the telescopic rod to move towards or away from the moving ring.

[0023] By adopting the above technical solution, in the initial state, several connecting rods are in an open state, and the mounting ring is located at the hinge of the connecting rod and the connecting plate, so that the telescopic rod is close to the moving ring, so that the end of the moving rod connected to the telescopic rod is close to the moving ring, that is, the inclination angle of the moving rod is larger at this time. When it is necessary to retract the connecting rod so that the end of the connecting rod abuts against the inner wall of the pipe, the moving ring is directly rotated to drive one end of the moving rod to approach the other end of the moving rod, while the length of the moving rod itself remains unchanged, and the end of the moving rod hinged on the moving ring cannot move along the radial direction of the moving ring, so that the moving rod rotates, so that the other end of the moving rod drives the telescopic rod to move in the direction away from the moving ring, driving the mounting ring to move synchronously.

[0024] The moving ring drives the moving rods to rotate at the same angle, so that the telescopic rod drives the mounting rings to move synchronously by the same distance, that is, the connecting rods on all the connecting plates are retracted at the same angle, ensuring that when the connecting rods are in contact with the inner wall of the pipe, the mounting block is located in the middle of the pipe. When the connecting rods are rotated into place, the bolts are adjusted in the direction of the moving ring until the end of the bolts is in contact with the side wall of the moving ring, thereby fixing the moving ring on the mounting block, and the moving ring cannot rotate, that is, the moving rod is fixed, so that the position of the mounting ring is fixed, so that the connecting rods maintain the same rotation angle, ensuring that the end of the connecting rod can be in contact with the inner wall of the pipe.

[0025] Optionally, the telescopic rod is located between adjacent mounting rings, and the telescopic rod includes: A fixing sleeve, one end of which is arranged on the mounting ring, and the end of the moving rod is hinged on the fixing sleeve; A fixing rod, one end of which is arranged on the adjacent mounting ring, and the other end of which is inserted into the fixing sleeve, and a detection head is arranged on the fixing rod.

[0026] By adopting the above technical solution, when the moving ring rotates, driving the moving rod to rotate and drive the telescopic rod to move, the distance between adjacent mounting rings changes, so that the fixed rod moves in the fixed sleeve, changing the extension length of the fixed rod, thereby changing the length of the entire telescopic rod to adapt to the distance between adjacent mounting rings, so that the adjacent mounting rings are always connected. When the distance between adjacent detection components is large, that is, the connecting rod is tightened, there will be more blank space between adjacent detection components, and the telescopic rod is also stretched longer, that is, the fixed rod extends more out of the fixed sleeve, so that the detection head is exposed, and it is aimed at the blank space between adjacent detection components, and the blank space is detected to ensure that the entire inner wall of the pipeline is detected, thereby improving the detection accuracy.

[0027] In summary, the present application includes at least one of the following beneficial effects: 1. When in use, place the mounting block in the pipeline to be inspected, and make the ends of several connecting rods abut against the inner wall of the pipeline. At this time, the connecting rods play a supporting role, so that the entire detection device will not flip in the pipeline, thereby ensuring that the scanner on the connecting plate is always aligned with the inner wall of the pipeline. Then start the drive component to drive the mounting block to move in the pipeline, so that the scanner moves along the length of the pipeline, thereby scanning the entire inner wall of the pipeline to detect pipeline cracks. The connecting rods surround the scanner, so that the connecting rods ensure the stable movement of the detection device while also protecting the scanner to prevent the scanner from bumping; 2. After the detection device is placed in the pipeline, the mounting ring is moved to move the mounting ring away from the mounting block. Since the diameter of the mounting ring is fixed, and the torsion spring makes the connecting rod always abut against the inner wall of the mounting ring, the mounting ring gathers the connecting rods in the mounting ring during the movement, so that the connecting rods are close to each other, that is, the end of the connecting rod away from the connecting plate is away from the mounting block, so that the distance from the end of the connecting rod to the mounting block is farther, thereby increasing the overall diameter of the detection device, so that the rubber pad on the connecting rod abuts against the inner wall of the pipe, so that the detection device can be adapted to be installed in pipes of different diameters, so that pipes of different diameters can be detected, and the applicability is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of a pipeline leak detection device according to an embodiment of the present application; Figure 2 It is a structural schematic diagram of the connection relationship between the detection component and the rotating component.

[0029] In the figure: 10, mounting block; 11, bolt; 20, driving assembly; 21, rotating motor; 22, rotating rod; 23, propeller; 30, detection assembly; 31, connecting plate; 32, scanner; 33, connecting rod; 331, rubber pad; 332, probe; 333, torsion spring; 40, rotating assembly; 41, rotating bevel gear; 42, transmission bevel gear; 50, mounting ring; 60, telescopic rod; 61, fixing sleeve; 62, fixing rod; 621, detection head; 70, moving assembly; 71, moving ring; 72, moving rod. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-2 This application is described in further detail.

[0031] The present application embodiment discloses a pipeline leak detection device. Figure 1 and Figure 2 The pipeline leakage detection device includes a mounting block 10, a driving assembly 20 and a plurality of detection assemblies 30. The driving assembly 20 is arranged on the mounting block 10. The driving assembly 20 includes a rotating motor 21, a rotating rod 22 and a propeller 23. The rotating motor 21 is installed on the mounting block 10 through a bolt 11. The rotating rod is rotatably connected to the mounting block 10. The output end of the rotating motor 21 is coaxially fixed with one end of the rotating rod 22. The rotating motor 21 is used to drive the rotating rod 22 to rotate on the mounting block 10.

[0032] The propeller 23 is coaxially fixed on the other end of the rotating rod 22. When the rotating motor 21 is started and drives the rotating rod 22 to drive the propeller 23 to rotate, the propeller 23 rotates in the air through the blades, pushing the air backwards, thereby obtaining a reaction force, that is, a propulsion force, to move the mounting block 10 forward.

[0033] Reference Figure 1 and Figure 2 , wherein a plurality of detection components 30 are arranged on the mounting block 10, and the plurality of detection components 30 are radially arranged with the center of the mounting block 10 as the center of the circle, and the detection components 30 include a connecting plate 31, a scanner 32 and a plurality of connecting rods 33, the connecting plate 31 is mounted on the mounting block 10, and the scanner 32 is placed on the connecting plate 31, and the scanner 32 adopts optical scanning imaging technology, which includes two steps of light source irradiation and light signal reception. When the mounting block 10 is placed in the pipeline to be detected, a laser is used as a light source, and the laser is irradiated onto the inner wall of the pipeline to be detected, and is reflected or scattered by the inner wall of the pipeline, and the light signal is received by a photoelectric sensor, thereby converting the light signal reflected or scattered back from the pipeline into an electrical signal, and outputting it after amplification, filtering and other processing, so as to achieve the effect of scanning the inner wall of the pipeline, thereby recording the condition of the pipeline and detecting whether there is a crack.

[0034] Reference Figure 1 and Figure 2 A plurality of connecting rods 33 are distributed in a circle around the scanner 32. One end of the connecting rod 33 is hinged on the connecting plate 31 through a rotating shaft. A torsion spring 333 is sleeved on the rotating shaft. One end of the torsion spring 333 is fixed to the rotating shaft, and the other end is fixed to the connecting rod 33, which is used to drive the connecting rod 33 to rotate away from the scanner 32. A rubber pad 331 is fixed to the other end of the connecting rod 33. When the mounting block 10 is placed in the pipeline, the rubber pad 331 at the end of the connecting rod 33 can abut against the inner wall of the pipeline, so that the entire detection device is supported in the pipeline and is not easy to flip.

[0035] When in use, the mounting block 10 is placed in the pipe to be inspected, and the torsion spring 333 makes the connecting rod 33 open in the initial state, so that the end of the connecting rod 33 away from the mounting block 10 is close to the mounting block 10, that is, the diameter of the entire detection device is small, which makes it easy to insert the detection device into the pipe.

[0036] Reference Figure 1 and Figure 2 Then, the connecting rods 33 are retracted so that the rubber pads 331 at the ends of the connecting rods 33 abut against the inner wall of the pipe, which plays a protective role and prevents the ends of the connecting rods 33 from wearing the inner wall of the pipe. At the same time, the connecting rods 33 abut against the inner wall of the pipe to play a supporting role, so that the entire detection device will not flip over in the pipe, thereby ensuring that the scanner 32 on the connecting plate 31 is always aligned with the inner wall of the pipe. Then, the propeller 23 is used to move in the pipe. Due to the restriction of the connecting rods 33, the rubber pads 331 slide on the inner wall of the pipe, so that the entire detection device can only move along the trajectory of the pipe.

[0037] The scanners 32 are evenly distributed around the mounting block 10. When the mounting block 10 is located at a certain point of the pipeline, the scanners 32 can perform a comprehensive scan of the inner wall of the pipeline around the point. Driven by the mounting block 10, the scanners 32 move along the length of the pipeline, thereby scanning the entire inner wall of the pipeline to detect pipeline cracks. The connecting rod 33 surrounds the scanner 32, so that the connecting rod 33 ensures the stable movement of the detection device and also protects the scanner 32 to prevent the scanner 32 from bumping.

[0038] Reference Figure 1 and Figure 2 In order to facilitate driving all the connecting rods 33 to rotate synchronously by the same distance, a mounting ring 50 is provided on the detection assembly 30, and a plurality of connecting rods 33 are located in the mounting ring 50. The mounting ring 50 can move on the connecting rods 33 toward or away from the mounting block 10. The plurality of mounting rings 50 are connected by telescopic rods 60, and a moving assembly 70 is provided on the mounting block 10 to drive the plurality of telescopic rods 60 to move synchronously.

[0039] When the detection device is placed in the pipeline, the moving assembly 70 is driven to drive several mounting rings 50 to move synchronously by the same distance, so that all the connecting rods 33 on the entire detection device have the same rotation angle, that is, the distance from the mounting block 10 to the end of the connecting rod 33 is consistent, so that after the connecting rod 33 is contracted or expanded, the mounting block 10 is always the center of the entire detection device, and ensure that the mounting block 10 is also located on the central axis of the pipeline, so that the distance from each scanner 32 to the inner wall of the pipeline is equal, thereby achieving uniform scanning of the entire circle of the pipeline.

[0040] Reference Figure 1 and Figure 2 , wherein the telescopic rod 60 is located between adjacent mounting rings 50 , the telescopic rod 60 includes a fixing sleeve 61 and a fixing rod 62 , one end of the fixing sleeve 61 is mounted on the mounting ring 50 , and the other end is open, the fixing rod 62 is inserted from the opening of the fixing sleeve 61 , and the other end is mounted on the adjacent mounting ring 50 .

[0041] When the moving assembly 70 drives the telescopic rod 60 to move the mounting ring 50, the distance between adjacent mounting rings 50 changes, so that the fixing rod 62 moves in the fixing sleeve 61, and the extension length of the fixing rod 62 is changed, thereby changing the length of the entire telescopic rod 60 to adapt to the distance between adjacent mounting rings 50, so that the adjacent mounting rings 50 are always in a connected relationship.

[0042] Reference Figure 1 and Figure 2 When the distance between adjacent detection components 30 is large, that is, the connecting rod 33 is tightened, there will be more blank space between the adjacent detection components 30, and the blank space here cannot be scanned and detected. A detection head 621 is installed on the fixed rod 62. When the distance between adjacent detection components 30 is short, most of the fixed rod 62 is received in the fixed sleeve 61, and the detection head is also in the fixed sleeve 61, and cannot play a detection role.

[0043] When the distance between adjacent detection components 30 becomes longer, the telescopic rod 60 is also stretched longer, that is, the fixed rod 62 extends farther out of the fixed sleeve 61, so that the detection head 621 is exposed and aimed at the blank space between the adjacent detection components 30 to detect the blank space, ensuring that the entire inner wall of the pipeline is detected, thereby improving the detection accuracy.

[0044] Reference Figure 1 and Figure 2 The moving assembly 70 includes a moving ring 71 and a plurality of moving rods 72. The moving ring 71 is rotatably connected to the mounting block 10. The moving ring 71 is coaxial with the mounting block 10, that is, the distance from the end of the connecting rod 33 to the moving ring 71 is equal. The mounting block 10 is threadedly connected with a bolt 11, and the end of the bolt 11 can abut against the moving ring 71, so as to fix the moving ring 71 on the mounting block 10.

[0045] Reference Figure 1 and Figure 2 A plurality of moving rods 72 correspond to the telescopic rod 60 one by one, one end of the moving rod 72 is hinged on the moving ring 71, and the other end is hinged on the fixed sleeve 61. The moving ring 71 rotates to drive the moving rod 72 to drive the telescopic rod 60 to move toward or away from the moving ring 71.

[0046] In the initial state, several connecting rods 33 are in an open state, and the mounting ring 50 is located at the hinge of the connecting rod 33 and the connecting plate 31, so that the telescopic rod 60 is close to the moving ring 71, so that the end of the moving rod 72 connected to the telescopic rod 60 is close to the moving ring 71, that is, the tilt angle of the moving rod 72 is relatively large at this time. When it is necessary to retract the connecting rod 33 so that the end of the connecting rod 33 abuts against the inner wall of the pipe, the moving ring 71 is directly rotated to drive one end of the moving rod 72 to approach the other end of the moving rod 72, while the length of the moving rod 72 itself remains unchanged, and the end of the moving rod 72 hinged on the moving ring 71 cannot move along the radial direction of the moving ring 71, so that the moving rod 72 rotates, so that the other end of the moving rod 72 drives the telescopic rod 60 to move away from the moving ring 71, driving the mounting ring 50 to move synchronously.

[0047] Reference Figure 1 and Figure 2 , and the moving ring 71 drives the moving rods 72 to rotate at the same angle, so that the telescopic rod 60 drives the mounting rings 50 to move synchronously at the same distance, that is, the connecting rods 33 on all the connecting plates 31 are retracted at the same angle, ensuring that when the connecting rods 33 are in contact with the inner wall of the pipe, the mounting block 10 is located in the middle of the pipe. When the connecting rods 33 are rotated into place, the bolts 11 are adjusted in the direction of the moving ring 71 until the end of the bolts 11 is in contact with the side wall of the moving ring 71, thereby fixing the moving ring 71 on the mounting block 10, and the moving ring 71 cannot rotate, that is, the moving rod 72 is fixed, so that the position of the mounting ring 50 is fixed, so that the connecting rods 33 maintain the same rotation angle, ensuring that the end of the connecting rods 33 can be in contact with the inner wall of the pipe.

[0048] Reference Figure 1 and Figure 2In order to achieve a comprehensive inspection of the pipeline, a probe 332 is also installed on the connecting rod 33. The probe 332 here is the same product as the detection head 621 on the fixed rod 62, and both are used to detect cracks in the pipeline. Several connecting rods 33 surround the scanner 32, so that the probe 332 on the connecting rod 33 detects the edge of the scanning range of the scanner 32 to avoid the situation of incomplete inspection. At the same time, the probe 332 on the connecting rod 33 located in front of the scanner 32 will detect the inner wall of the pipeline before the scanner 32 scans, and then the scanner 32 will scan again, and the probe 332 on the connecting rod 33 located behind the scanner 32 will follow the scanner 32 to the position scanned by the scanner 32, thereby achieving the effect of multiple inspections of the pipeline, avoiding omissions, and improving the accuracy of detection.

[0049] Reference Figure 1 and Figure 2 In order to prevent the probe 332 on a certain connecting rod 33 from being damaged and affecting the comprehensive detection of the pipeline, a rotating assembly 40 is provided on the mounting block 10. The rotating assembly 40 includes a rotating bevel gear 41 and a plurality of transmission bevel gears 42. The rotating bevel gear 41 is coaxially sleeved on the rotating rod 22. The rotating bevel gear 41 is fixed to the rotating rod 22. The transmission bevel gear 42 is rotatably connected to the mounting block 10. The plurality of transmission bevel gears 42 correspond to the connecting plate 31 one by one. The transmission bevel gear 42 is fixed to the connecting plate 31, and the transmission bevel gear 42 is meshed with the rotating bevel gear 41.

[0050] When the rotating motor 21 drives the rotating rod 22 to drive the propeller 23 to rotate, so that the detection device moves in the pipeline, the connecting rod 33 and the scanner 32 move synchronously, and the rotating rod 22 rotates while also driving the rotating bevel gear 41 to rotate, thereby driving a plurality of transmission bevel gears 42 to rotate synchronously, so that the connecting rod 33 revolves around the scanning piece, so that the connecting rods 33 before and after the scanner 32 are constantly alternating, and after the probe 332 on a certain connecting rod 33 is damaged, the probes 332 on the remaining connecting rods 33 can be rotated to the position where the probe 332 on the connecting rod 33 was originally to be detected for detection, that is, while the mounting block 10 drives the scanner 32 to scan the interior of the entire pipeline, the probes 332 around each scanner 32 synchronously follow the mounting block 10 to move and move in a circle, reducing the influence of the damaged probe 332 on the pipeline detection, making it less likely to miss the detection, and improving the accuracy of pipeline crack inspection.

[0051] The implementation principle of a pipeline leak detection device in an embodiment of the present application is as follows: when in use, the mounting block 10 is placed in the pipeline to be detected, and the ends of a plurality of connecting rods 33 are abutted against the inner wall of the pipeline, so that the mounting block 10 is located on the central axis of the pipeline. At this time, the connecting rods 33 play a supporting role, so that the entire detection device will not flip over in the pipeline, thereby ensuring that the scanner 32 on the connecting plate 31 is always aligned with the inner wall of the pipeline, and then the driving assembly 20 is started to drive the mounting block 10 to move in the pipeline. Due to the restriction of the connecting rods 33, the connecting rods 33 slide on the inner wall of the pipeline, so that the entire detection device can only move along the trajectory of the pipeline.

[0052] The scanners 32 are evenly distributed around the mounting block 10. When the mounting block 10 is located at a certain point of the pipeline, the scanners 32 can perform a comprehensive scan of the inner wall of the pipeline around the point. Driven by the mounting block 10, the scanners 32 move along the length of the pipeline, thereby scanning the entire inner wall of the pipeline to detect pipeline cracks. The connecting rod 33 surrounds the scanner 32, so that the connecting rod 33 ensures the stable movement of the detection device and also protects the scanner 32 to prevent the scanner 32 from bumping.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pipeline leak detection device, characterized in that: include: Mounting block (10); A driving assembly (20), arranged on the mounting block (10), and used for driving the mounting block (10) to move; A plurality of detection components (30) are arranged on the mounting block (10), and the plurality of detection components (30) are radially arranged with the center of the mounting block (10) as the center of the circle. The detection components (30) comprise a connecting plate (31), a scanner (32) and a plurality of connecting rods (33). The connecting plate (31) is arranged on the mounting block (10), the scanner (32) is arranged on the connecting plate (31), one end of the connecting rod (33) is arranged on the connecting plate (31), the scanner (32) is located between the plurality of connecting rods (33), and the plurality of connecting rods (33) are evenly arranged along the circumference of the scanner (32).

2. The pipeline leak detection device according to claim 1, characterized in that: The driving assembly (20) comprises: A rotating motor (21) is arranged on the mounting block (10); A rotating rod (22), the rotating rod (22) being coaxial with the mounting block (10), and the rotating rod (22) being rotatably connected to the mounting block (10); The propeller (23) is coaxially fixed on the rotating rod (22).

3. The pipeline leak detection device according to claim 1, characterized in that: A rubber pad (331) is provided on one end of the connecting rod (33) away from the mounting block (10).

4. The pipeline leak detection device according to claim 1, characterized in that: The connecting rod (33) is provided with a probe (332).

5. The pipeline leakage detection device according to claim 1, characterized in that: The mounting block (10) is provided with a rotating assembly (40), the rotating assembly (40) being connected to the connecting plate (31) and used for driving the connecting plate (31) to rotate, the rotating assembly (40) comprising: A rotating bevel gear (41) is coaxially sleeved on the rotating rod (22), and the rotating bevel gear (41) is fixed to the rotating rod (22); A plurality of transmission bevel gears (42) are rotatably connected to the mounting block (10), the plurality of transmission bevel gears (42) correspond to the connecting plate (31) one by one, the transmission bevel gears (42) are fixed to the connecting plate (31), and the transmission bevel gears (42) are meshed with the rotating bevel gears (41).

6. The pipeline leakage detection device according to claim 1, characterized in that: One end of the connecting rod (33) close to the mounting block (10) is hinged to the mounting block (10) via a torsion spring (333), and the torsion spring (333) is used to drive a plurality of connecting rods (33) to move away from each other.

7. The pipeline leakage detection device according to claim 1, characterized in that: The detection assembly (30) is provided with a mounting ring (50), a plurality of connecting rods (33) are located in the mounting ring (50), and the mounting ring (50) can move on the connecting rods (33) in a direction approaching or moving away from the mounting block (10).

8. The pipeline leakage detection device according to claim 7, characterized in that: The plurality of mounting rings (50) are connected via telescopic rods (60), and the mounting block (10) is provided with a moving assembly (70) for driving the plurality of telescopic rods (60) to move synchronously.

9. The pipeline leakage detection device according to claim 8, characterized in that: The moving assembly (70) comprises: A movable ring (71) is rotatably connected to the mounting block (10); a bolt (11) is threadedly connected to the mounting block (10); an end of the bolt (11) can abut against the movable ring (71) to fix the movable ring (71) on the mounting block (10); A plurality of moving rods (72) are provided, wherein the moving rods (72) correspond to the telescopic rods (60) one by one, one end of the moving rod (72) is hinged on the moving ring (71), and the other end is hinged on the telescopic rod (60), and the moving ring (71) rotates to drive the moving rod (72) to drive the telescopic rod (60) to move in a direction close to or away from the moving ring (71).

10. The pipeline leakage detection device according to claim 9, characterized in that: The telescopic rod (60) is located between adjacent mounting rings (50), and the telescopic rod (60) comprises: A fixing sleeve (61), one end of the fixing sleeve (61) is arranged on the mounting ring (50), and the end of the moving rod (72) is hinged on the fixing sleeve (61); A fixing rod (62), one end of which is arranged on the adjacent mounting ring (50), and the other end of which is inserted into the fixing sleeve (61), and a detection head (621) is arranged on the fixing rod (62).

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