Pipeline leakage point detection device

Abstract

The utility model provides a pipeline leakage point detection device which comprises a pipeline to be detected and an ultrasonic flaw detector, the ultrasonic flaw detector is installed in the middle of the upper end face of a supporting beam, and a moving assembly is arranged on the lower end face of the supporting beam. The double threaded rods can drive the rubber rollers on the left side and the right side to move towards the inner side or the outer side together through the displacement columns, the adjusting vertical rods and the connecting blocks, so that detection personnel can perform matching adjustment on the distance between the rubber rollers according to the size of a to-be-detected pipeline; the adjusting vertical rods can be adjusted in an up-and-down telescopic mode so that detection personnel can conveniently conduct matched adjustment on the use height of the supporting beam, and the detection personnel can conveniently adjust the rolling direction of the rubber rolling wheels according to detection requirements by unscrewing and disassembling the fixing nuts and then pulling and disassembling the rubber rolling wheels.

Description

Technical Field

[0001] This utility model relates to the field of pipeline leak detection technology, specifically a pipeline leak detection device. Background Technology

[0002] A pipeline is a device made up of pipes, pipe fittings, valves, etc., used to transport gases, liquids, or fluids containing solid particles. Pipelines have a wide range of applications, mainly in water supply, drainage, and heating. During the pipeline manufacturing process, leak detection devices are used to detect leaks.

[0003] The device disclosed in publication number "CN218178505U" is a pipeline leak detection device. It uses a sliding rod to slide inward or outward in a sliding groove, while a vertical rod moves up and down within the sliding rod to adjust the position of the pulley clamping the pipeline. The pulley housing adjusts the clamping according to the outer diameter of the pipeline, and the probe detects pipeline leaks. The pulley rolls along the pipeline, making the movement and detection of pipeline leaks smoother.

[0004] However, the above technical solutions and existing technologies have the following drawbacks:

[0005] Firstly, the pulleys in this pipe leak detection device can only move back and forth during actual use, which means that the device can only detect leaks by moving the pipe back and forth, making it inconvenient to detect leaks around the pipe. Secondly, the device does not have corresponding auxiliary support structures on the front and back sides, which makes it easy for the device to sway or tip over during use, thus reducing the detection stability of the probe and making it less practical. Utility Model Content

[0006] The purpose of this invention is to provide a pipeline leak detection device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A pipe leak detection device includes a pipe to be tested, an ultrasonic flaw detector, a support beam, and a detection probe. The support beam is placed on the upper side of the annular side of the pipe to be tested. The ultrasonic flaw detector is installed at the middle position of the upper end face of the support beam. The detection probe is installed below the ultrasonic flaw detector. A movable component is provided on the lower end face of the support beam to facilitate the movement of the support beam on the pipe to be tested. An auxiliary support component is provided on the front end face of the support beam to adjust the height of the detection probe.

[0009] Preferably, the movable component includes a displacement column, an adjusting vertical rod, a fixing nut, an extension screw, a rubber roller, a double-threaded rod, a limiting groove, and a connecting block. The support beam is provided with a double-threaded rod inside. Limiting grooves are symmetrically opened on the left and right sides of the lower end face of the support beam. The double-threaded rod is symmetrically provided with displacement columns on the left and right sides of its annular side. An adjusting vertical rod is inserted into the lower side of the displacement column. A connecting block is inserted into the lower side of the adjusting vertical rod. A rubber roller is provided at the left end of the connecting block. An extension screw is provided at the right end of the connecting block. A fixing nut is installed on the annular side of the extension screw.

[0010] Preferably, the auxiliary support assembly includes an extension plate, an auxiliary support plate, casters, an adjusting screw, and a connecting plate. An extension plate is provided at the middle position of the front end face of the support beam. An adjusting screw is installed on the front side inside the extension plate. A connecting plate is provided at the lower end of the adjusting screw. The auxiliary support plate is attached to the lower end face of the connecting plate. Casters are installed on the rear side of the lower end face of the auxiliary support plate.

[0011] Preferably, a limiting rod is provided on the rear side of the upper end face of the auxiliary support plate, a limiting through hole is opened inside the extension plate and the limiting through hole matches the limiting rod, and an anti-detachment cover is installed on the upper end face of the auxiliary support plate.

[0012] Preferably, the extension plate has a vertical internal threaded through hole on its front side, which engages with the adjusting screw, and the auxiliary support plate has a mounting groove on its upper surface, which matches the connecting plate.

[0013] Preferably, the right end face of the adjusting vertical rod is provided with multiple positioning holes, and the lower side of the adjusting vertical rod is provided with a through cavity, which matches the connecting block, and the connecting block is cubic in shape.

[0014] Preferably, a fixing threaded hole is provided on the lower side of the right end face of the displacement column, and a fixing screw is installed inside the fixing threaded hole. A transverse internal threaded through hole is provided on the upper side of the inside of the displacement column, and the transverse internal threaded through hole meshes with the double threaded rod. An insertion cavity is provided inside the displacement column, and the insertion cavity matches the adjusting vertical rod.

[0015] Preferably, a limit ring is provided on the right side of the annular side of the double threaded rod, a blocking cover is installed on the right end face of the support beam, and a grip handle is symmetrically fixedly connected to the left and right sides of the upper end face of the support beam.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. Before performing leak detection on the pipeline under test, this device allows the double threaded rod to be rotated forward or backward. This, through the displacement column, adjusting vertical rod, and connecting block, moves the rubber rollers on both sides inward or outward. This allows the inspector to adjust the spacing between the rubber rollers according to the size of the pipeline under test. By loosening and disassembling the fixing screws, the adjusting vertical rod can be adjusted up and down to match the height of the support beam. By loosening and disassembling the fixing nut, the rubber rollers can be pulled and disassembled, allowing the inspector to adjust the rolling direction of the rubber rollers according to the testing requirements. This device can perform leak detection both by moving the pipeline forward and backward, and by moving around the pipeline under test.

[0018] 2. By rotating the adjusting screw forward, the adjusting screw can drive the detection probe and casters to descend together via the connecting plate and auxiliary support plate. This ensures that the detection probe and casters are in contact with the pipe to be tested, thus guaranteeing the accuracy of the detection probe. During the detection process, the casters provide auxiliary support to the support beam via the auxiliary support plate, adjusting screw, and extension plate, preventing the support beam from swaying or tipping over during forward and backward movement, thereby ensuring the stability of the detection probe. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This is a structural diagram of the auxiliary support component and the moving component in this utility model;

[0021] Figure 3 This is a front cross-sectional view of the auxiliary support component and the moving component in this utility model;

[0022] Figure 4 This is an exploded view of the distributed structure of the mobile component in this utility model.

[0023] Figure 5 This is an exploded view showing the distributed structure of the auxiliary support components in this utility model.

[0024] Figure 6 This is a frontal cross-sectional view of the rubber roller in this utility model after its direction of movement has been changed.

[0025] In the diagram: 1. Pipe to be tested; 2. Ultrasonic flaw detector; 3. Support beam; 31. Handle; 32. Blocking cover; 4. Auxiliary support assembly; 41. Extension plate; 411. Limiting through hole; 42. Limiting rod; 43. Auxiliary support plate; 431. Anti-detachment cover; 432. Mounting groove; 44. Caster wheel; 45. Adjusting screw; 46. Vertical internal thread through hole; 47. Connecting plate; 5. Detection probe; 6. Moving assembly; 61. Displacement column; 62. Fixing screw; 63. Adjusting vertical rod; 631. Positioning hole; 632. Through cavity; 64. Fixing nut; 65. Extension screw; 66. Rubber roller; 67. Double threaded rod; 671. Limiting ring; 68. Limiting groove; 69. Connecting block; 611. Insertion cavity; 612. Fixing threaded hole; 613. Horizontal internal thread through hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-6 This utility model provides a technical solution: Example 1

[0028] A pipeline leak detection device includes a pipeline to be tested 1, an ultrasonic flaw detector 2, a support beam 3, and a detection probe 5. The support beam 3 is placed on the upper side of the annular side of the pipeline to be tested, and the support beam 3 supports the ultrasonic flaw detector 2. The ultrasonic flaw detector 2 is installed at the middle position of the upper end face of the support beam 3, and the detection probe 5 is installed below the ultrasonic flaw detector 2. A signal line is connected between the detection probe 5 and the ultrasonic flaw detector 2. When the ultrasonic flaw detector 2 and the detection probe 5 are working, they will perform leak detection on the pipeline to be tested 1. Since the detailed internal structure and working principle of the ultrasonic flaw detector 2 and the detection probe 5 are relatively mature technologies in the prior art, they will not be described in detail here.

[0029] The lower end face of the support beam 3 is provided with a movable component 6, which facilitates the movement of the support beam 3 on the test pipes 1 of different diameters. The front end face of the support beam 3 is provided with an auxiliary support component 4, which not only adjusts the height of the detection probe 5, but also provides auxiliary support for the support beam 3 to prevent the support beam 3 from shaking or tipping over during movement. The upper end face of the support beam 3 is symmetrically fixedly connected with handles 31 on the left and right sides. The handles 31 are connected to the support beam 3 by welding, which makes it convenient for the test personnel to pick up or move the support beam 3 by hand.

[0030] The moving component 6 includes a displacement column 61, an adjusting vertical rod 63, a fixing nut 64, an extension screw 65, a rubber roller 66, a double-threaded rod 67, a limiting groove 68, and a connecting block 69. The support beam 3 has a double-threaded rod 67 inside. The external threads on the left and right sides of the annular side of the double-threaded rod 67 rotate in opposite directions. When the double-threaded rod 67 rotates, it drives the displacement columns 61 on both sides to move synchronously and in opposite directions. Limiting grooves 68 are symmetrically formed on the left and right sides of the lower end face of the support beam 3, and the limiting grooves 68 match the displacement columns 61. The limiting groove 68 limits the displacement column 61 to prevent it from shifting or wobbling during left and right movement. A limiting ring 671 is provided on the right side of the annular side of the double threaded rod 67. The limiting ring 671 is connected to the double threaded rod 67 by welding. A blocking cover 32 is installed on the right end face of the support beam 3. The limiting ring 671 and the blocking cover 32 prevent the double threaded rod 67 from shifting or slipping during rotation. A first turntable is provided on the right end of the double threaded rod 67 and is connected to the double threaded rod 67 by welding. The first turntable allows the testing personnel to rotate the double threaded rod 67 by hand.

[0031] The double-threaded rod 67 has symmetrically arranged displacement columns 61 on its annular side. The displacement columns 61 support the support beam 3 through the double-threaded rod 67. An adjusting vertical rod 63 is inserted into the lower part of the displacement column 61, which supports the displacement column 61. A connecting block 69 is inserted into the lower part of the adjusting vertical rod 63. The connecting block 69 is connected to the rubber roller 66 and the extension screw 65 by welding. The connecting block 69 is cubic in shape. The cubic connecting block 69 not only supports the rubber roller 66 The rubber roller 66 is provided on the left end of the connecting block 69 to facilitate the adjustment of the direction of use of the rubber roller 66 by the testing personnel. The rubber roller 66 makes the support beam 3 move more smoothly. An extension screw 65 is provided on the right end of the connecting block 69. A fixing nut 64 is installed on the annular side of the extension screw 65. The extension screw 65 and the fixing nut 64 facilitate the disassembly and assembly of the connecting block 69. The fixing nut 64 is a wing nut, which makes it easy for the testing personnel to disassemble and assemble it by hand.

[0032] Multiple positioning holes 631 of the same specification are provided on the right end face of the adjusting vertical rod 63. The positioning holes 631 match the fixing screws 62, and the multiple positioning holes 631 facilitate the fixing screws 62 to fix the telescopic adjusting vertical rod 63. A through cavity 632 is provided on the lower side of the interior of the adjusting vertical rod 63, and the through cavity 632 matches the connecting block 69. The through cavity 632 facilitates the insertion of the connecting block 69 into the adjusting vertical rod 63. A fixing threaded hole 612 is provided on the lower side of the right end face of the displacement column 61. The fixing threaded hole 612 facilitates the engagement and fixing of the fixing screws 62 into the displacement column 61. An internal fixing screw 62 is installed. The fixing screw 62 is a wing screw. The wing screw fixing screw 62 not only fixes the adjusting vertical rod 63, but also makes it easy for the inspection personnel to disassemble and assemble it by hand. The upper side of the displacement column 61 has a transverse internal thread through hole 613, which meshes with the double thread rod 67. The transverse internal thread through hole 613 facilitates the double thread rod 67 to drive the displacement column 61 to move left and right. The displacement column 61 has an insertion cavity 611 inside, which matches the adjusting vertical rod 63. The insertion cavity 611 facilitates the insertion of the adjusting vertical rod 63 into the displacement column 61. Example 2

[0033] Based on Embodiment 1, in this embodiment, by rotating the adjusting screw 45 forward, the adjusting screw 45 can drive the detection probe 5 and the caster wheel 44 to descend together through the connecting plate 47 and the auxiliary support plate 43, so that the detection probe 5 and the caster wheel 44 descend to contact the pipe 1 to be tested, thereby ensuring the detection accuracy of the detection probe 5. During the movement and detection of the detection probe 5, the caster wheel 44 will provide auxiliary support to the support beam 3 through the auxiliary support plate 43, the adjusting screw 45 and the extension plate 41, thereby preventing the support beam 3 from swaying and tipping over during the forward and backward movement, thus ensuring the stability of the detection probe 5 in use.

[0034] The auxiliary support assembly 4 includes an extension plate 41, an auxiliary support plate 43, casters 44, an adjusting screw 45, and a connecting plate 47. An extension plate 41 is located at the middle of the front end face of the support beam 3. The extension plate 41 is connected to the support beam 3 by welding, providing auxiliary support to the support beam 3. An adjusting screw 45 is installed inside the front side of the extension plate 41. The adjusting screw 45 is connected to the connecting plate 47 and the second turntable by welding. A second turntable is located on the upper end face of the adjusting screw 45, allowing the testing personnel to easily rotate the adjusting screw 45 manually. The screw 45 not only supports the extension plate 41, but also adjusts the height of the auxiliary support plate 43. A connecting plate 47 is provided at the lower end of the screw 45, and the auxiliary support plate 43 is attached to the lower end of the connecting plate 47. The auxiliary support plate 43 supports the screw 45 through the connecting plate 47. A caster wheel 44 is installed on the rear side of the lower end of the auxiliary support plate 43. The bottom of the caster wheel 44 is at the same level as the lower end of the detection probe 5. The caster wheel 44 provides auxiliary support for the auxiliary support plate 43 to avoid hard friction between the lower end of the detection probe 5 and the pipe 1 to be tested.

[0035] A limit rod 42 is provided on the rear side of the upper end face of the auxiliary support plate 43. The limit rod 42 is connected to the auxiliary support plate 43 by welding. A limit through hole 411 is opened inside the extension plate 41, and the limit through hole 411 matches the limit rod 42. The matching limit through hole 411 and limit rod 42 prevent the auxiliary support plate 43 from shifting or shaking during lifting and lowering. An anti-detachment cover 431 is installed on the upper end face of the auxiliary support plate 43. The anti-detachment cover 431 will block and limit the connection plate 47. To prevent the connecting plate 47 from slipping during use, the extension plate 41 has a vertical internal threaded through hole 46 on its front side, which meshes with the adjusting screw 45. The vertical internal threaded through hole 46 allows the adjusting screw 45 to move up and down during forward and reverse rotation. The upper surface of the auxiliary support plate 43 has a mounting groove 432 that matches the connecting plate 47. The mounting groove 432 facilitates the use of the connecting plate 47 inside the auxiliary support plate 43.

[0036] Working principle: During leak detection of the pipeline 1 under test, the inspector first rotates the double threaded rod 67 clockwise, causing the double threaded rod 67 to drive the displacement columns 61 on both sides to move inwards simultaneously. The displacement columns 61, through the adjusting vertical rod 63 and the connecting block 69, drive the rubber rollers 66 on both sides to move inwards together. Similarly, when the double threaded rod 67 is rotated counterclockwise, the rubber rollers 66 on both sides will move outwards simultaneously, allowing the inspector to adjust the spacing between the rubber rollers 66 according to the size of the pipeline 1 under test. After the inspector loosens and disassembles the fixing screws 62 on both sides by hand, the adjusting vertical rods 63 on both sides can be moved up and down. The telescopic adjustment allows the testing personnel to match the height of the support beam 3. After adjustment, another testing personnel install and fix the fixing screws 62 on both sides into the fixing threaded holes 612, and insert the fixing screws 62 into the corresponding positioning holes 631, thereby adjusting the vertical adjustment rods 63 on both sides at equal intervals. Then, the testing personnel can place this device on the pipe 1 to be tested and rotate the adjusting screw 45 clockwise, so that the adjusting screw 45 drives the auxiliary support plate 43 to descend together through the connecting plate 47. The auxiliary support plate 43 will drive the detection probe 5 and the universal wheel 44 to descend together, until the detection probe 5 and the universal wheel 44 are in contact with the pipe 1 to be tested (reference). Figure 1 Before this, a suitable amount of coupling agent needs to be applied to the lower end face of the detection probe 5. At this time, the inspector starts the ultrasonic flaw detector 2 and moves the device back and forth (during this process, the inspector needs to hold the handle 31 with one hand and support the extension plate 41 with the other hand). This allows the ultrasonic flaw detector 2 to perform mobile leak detection on the pipe 1 to be tested through the detection probe 5. During this process, the rubber roller 66 makes the support beam 3 move more smoothly and effortlessly during the back and forth movement, while the universal wheel 44 supports the extension plate 41 through the auxiliary support plate 43 and the adjusting screw 45, so that the extension plate 41 provides auxiliary support for the support beam 3 and avoids the support beam 3 from swaying and tipping over during the back and forth movement, thereby ensuring the stability of the detection probe 5.

[0037] When leak detection is required around the pipe 1 to be tested, the inspector first loosens and removes the fixing nut 64, then pulls and removes the rubber roller 66 to separate the connecting block 69 from the through cavity 632. At this point, the rubber roller 66 can be rotated 90 degrees for adjustment. After adjustment, the connecting block 69 is inserted into the through cavity 632. Then, the fixing nut 64 is fixed to the annular side of the extension screw 65 to prevent the rubber roller 66 from loosening and slipping during use. At this point, the device can be placed on the pipe 1 to be tested (see reference). Figure 6 The ultrasonic flaw detector 2 performs leak detection around the pipeline 1 under test, thereby expanding the detection range of the ultrasonic flaw detector 2.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipe leak detection device, comprising a pipe to be tested (1), an ultrasonic flaw detector (2), a support beam (3), and a detection probe (5), characterized in that: A support beam (3) is placed on the upper side of the annular side of the pipe to be tested (1). An ultrasonic flaw detector (2) is installed at the middle position of the upper end face of the support beam (3). A detection probe (5) is installed below the ultrasonic flaw detector (2). The lower end face of the support beam (3) is provided with a moving component (6) to facilitate the movement of the support beam (3) on the pipe (1) to be tested, and the front end face of the support beam (3) is provided with an auxiliary support component (4) that can adjust the height of the detection probe (5).

2. The pipeline leak detection device according to claim 1, characterized in that: The moving component (6) includes a displacement column (61), an adjusting vertical rod (63), a fixing nut (64), an extension screw (65), a rubber roller (66), a double threaded rod (67), a limiting groove (68), and a connecting block (69). The support beam (3) is provided with a double threaded rod (67). The lower end face of the support beam (3) is symmetrically provided with limiting grooves (68) on the left and right sides. The double threaded rod (67) is symmetrically provided with displacement columns (61) on the left and right sides of its annular side. The displacement column (61) is inserted with an adjusting vertical rod (63) on its lower side. The adjusting vertical rod (63) is inserted with a connecting block (69) on its lower side. The connecting block (69) is provided with a rubber roller (66) on its left end and an extension screw (65) on its right end. The extension screw (65) is provided with a fixing nut (64) on its annular side.

3. The pipeline leak detection device according to claim 1, characterized in that: The auxiliary support assembly (4) includes an extension plate (41), an auxiliary support plate (43), a caster wheel (44), an adjusting screw (45), and a connecting plate (47). An extension plate (41) is provided at the middle position of the front end face of the support beam (3). An adjusting screw (45) is installed on the front side inside the extension plate (41). A connecting plate (47) is provided at the lower end of the adjusting screw (45). The auxiliary support plate (43) is attached to the lower end face of the connecting plate (47). A caster wheel (44) is installed on the rear side of the lower end face of the auxiliary support plate (43).

4. The pipeline leak detection device according to claim 3, characterized in that: The auxiliary support plate (43) is provided with a limiting rod (42) on the rear side of the upper end face. The extension plate (41) has a limiting through hole (411) inside, and the limiting through hole (411) matches the limiting rod (42). The auxiliary support plate (43) is provided with an anti-detachment cover (431) on the upper end face.

5. A pipeline leak detection device according to claim 3, characterized in that: The extension plate (41) has a vertical internal thread through hole (46) on the front side inside, and the vertical internal thread through hole (46) meshes with the adjusting screw (45). The auxiliary support plate (43) has an installation groove (432) on the upper end face, and the installation groove (432) matches the connecting plate (47).

6. A pipeline leak detection device according to claim 2, characterized in that: The right end face of the adjusting rod (63) is provided with multiple positioning holes (631), and the lower side of the interior of the adjusting rod (63) is provided with a through cavity (632), and the through cavity (632) matches the connecting block (69), which is a cube.

7. A pipeline leak detection device according to claim 2, characterized in that: The displacement column (61) has a fixed threaded hole (612) on the lower side of the right end face, and a fixing screw (62) is installed inside the fixed threaded hole (612). The displacement column (61) has a transverse internal threaded through hole (613) on the upper side inside, and the transverse internal threaded through hole (613) meshes with the double threaded rod (67). The displacement column (61) has an insertion cavity (611) inside, and the insertion cavity (611) matches the adjusting vertical rod (63).

8. A pipeline leak detection device according to claim 2, characterized in that: The double threaded rod (67) has a limit ring (671) on the right side of the annular side, and a blocking cover (32) is installed on the right end face of the support beam (3). The upper end face of the support beam (3) is symmetrically fixed with handles (31) on the left and right sides.

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