A multi-probe correlator for leak detection

Abstract

This invention provides a multi-probe correlator for leak detection, including a water supply pipe and a probe located above the water supply pipe with a cable connector at its top. The probe has an external thread on its outer side at the top, and the probe is threadedly fitted onto a fixing plate located above the water supply pipe. This multi-probe correlator for leak detection, by providing an external thread on the probe's outer side, allows the probe to be securely fitted inside the fixing plate. This facilitates the inspector placing the probe on the surface of the water supply pipe using a fixing rod. Simultaneously, rotating a pull rod engages a locking block on the outer side of the top of the fixing rod, and rotating the threaded sleeve moves a limiting block, thereby clamping the probe tightly against the outside of the water supply pipe. This prevents the probe from slipping on the water supply pipe surface during leak detection, facilitating leak detection.

Description

Technical Field

[0001] This invention relates to the field of water supply pipeline leakage detection technology, and specifically discloses a multi-probe correlator for leakage detection. Background Technology

[0002] The multi-probe correlator integrates pre-positioning and precise positioning. Even without knowing the pipe material or diameter, it can complete a regional leak survey and precise leak location with just one test.

[0003] The working principle of the multi-probe correlator is as follows: When there is a leak in the water supply pipeline, a leak sound wave will be generated at the leak point and will propagate far along the pipeline. When the probe is attracted to or placed at different positions on the pipeline or pipeline connection, the probe automatically records the leak sound wave signal and then downloads it to the computer. The relevant software can calculate the time difference Td of the leak sound wave generated at the leak point to different probes. As long as the actual length L of the pipeline between the two probes and the propagation speed of the sound wave in the pipeline (referred to as the speed of sound) V are given, the location Lx of the leak point can be calculated by the following formula: Lx=(L-V×Td) / 2; where V depends on the pipe material, pipe diameter and medium in the pipeline, and the unit is m / s. All of these values ​​are stored in the relevant program or computer.

[0004] Most probes in existing multi-probe correlators are cylindrical in design. Since water supply pipes are also circular, the bottom of the probe cannot fully contact the surface of the pipe, resulting in low friction. When the probe is placed on the water supply pipe for leak detection, it is prone to sliding on the pipe surface. Moreover, since the water supply pipe is located underground, and the inspectors are on the ground, they cannot directly handle the probe placed on the pipe. This makes it inconvenient to manually fix the probe in the multi-probe correlator. In addition, the lighting inside the underground pipe is dim, making it difficult for inspectors to see the surface condition of the pipe. The specific location of the probe on the water supply pipe also makes installation inconvenient. Summary of the Invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, this application aims to provide a multi-probe correlator for water leakage detection, including a water supply pipe and a probe located above the water supply pipe with a cable connector at the top. The probe has an external thread on the outer side of its top end, and the probe is threadedly connected to a fixing plate located above the water supply pipe through the external thread. A fixing rod is fixedly sleeved inside the fixing plate and a pull rod is movably sleeved inside it. A locking block is fixedly sleeved on the outer side of the top end of the pull rod, and a threaded sleeve is threadedly sleeved on the outer side of the top end of the fixing rod. A limit block is fixedly sleeved on the outer side of the bottom end of the pull rod, and a light ring is provided on the outer side of the bottom end of the probe.

[0006] Preferably, the top of the limiting block is provided with a V-shaped groove located below the water supply pipe.

[0007] Preferably, the inner side of the V-groove is provided with symmetrically distributed anti-slip protrusions.

[0008] Preferably, the outer sides of the fixing rod and the pull rod are movably sleeved with a limiting plate, and a bolt located on the outer side of the fixing rod is threaded onto one side of the limiting plate.

[0009] Preferably, the interior of the lamp ring is provided with multiple equally spaced LED lights arranged in a ring.

[0010] Preferably, the inner side of the card block is provided with a card slot that is adapted to the fixing rod.

[0011] Preferably, the outer side of the top end of the fixing rod is provided with a threaded section that is compatible with the threaded sleeve.

[0012] Preferably, the fixing plate, fixing rod, tie rod, clamping block, threaded sleeve, limiting block, limiting plate and bolt are all made of high-strength PC material, and the outer surfaces of the fixing plate, fixing rod, tie rod, clamping block, threaded sleeve, limiting block, limiting plate and bolt are all coated with an anti-oxidation protective coating.

[0013] Beneficial effects:

[0014] 1. This multi-probe correlator for leak detection features an external thread on the outside of the probe, allowing it to be securely mounted inside a fixing plate. This enables the inspector to place the probe on the surface of the water supply pipe using a fixing rod. Simultaneously, rotating the pull rod engages the locking block on the outside of the top of the fixing rod, and rotating the threaded sleeve moves the limiting block, thereby clamping the probe tightly against the outside of the water supply pipe. This prevents the probe from slipping on the water supply pipe surface during leak detection, facilitating leak detection.

[0015] 2. This multi-probe correlator for leak detection uses multiple ring-shaped LEDs inside the lamp ring to illuminate the water supply pipe located inside the underground pipeline. This makes it easier to place the probe on the surface of the water supply pipe, and the inspector can directly observe the installation position of the probe for easy installation and removal.

[0016] 3. This multi-probe correlator for leak detection, by placing the threaded sleeve at the top of the fixed rod and the locking block at the top of the pull rod, allows the testing personnel to directly install and remove the probe on the road surface by rotating the threaded sleeve. This facilitates leak detection of water supply pipelines and allows the testing personnel to install and remove the probe from the outside. Attached Figure Description

[0017] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the installation of the structure of the present invention;

[0020] Figure 3 This is a side view of the structure of the present invention;

[0021] Figure 4 This is a partial top view of the structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the bottom of the lamp ring of the present invention;

[0023] Figure 6 This is a top view of the card block of the present invention.

[0024] In the diagram: 1. Water supply pipe; 2. Cable connector; 3. Probe; 4. External thread; 5. Fixing plate; 6. Fixing rod; 7. Pull rod; 8. Clamping block; 9. Threaded sleeve; 10. Limiting block; 11. Lamp ring; 12. V-groove; 13. Limiting plate; 14. Bolt; 15. LED light; 16. Slot. Detailed Implementation

[0025] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0026] The accompanying drawings in this embodiment of the invention: The different types of cross-sectional lines in the drawings are not labeled according to national standards, nor do they specify the material requirements of the components. They are used to distinguish the cross-sectional views of the components in the drawings.

[0027] Please see Figure 1-6A multi-probe correlator for leak detection includes a water supply pipe 1 and a probe 3 located above the water supply pipe 1 with a cable connector 2 at its top. The probe 3 has an external thread 4 on its outer side at the top, and a fixing plate 5 located above the water supply pipe 1 is threaded onto the probe 3 via the external thread 4. The fixing plate 5 secures the probe 3 via the external thread 4, and the probe 3 can be positioned on the fixing plate 5 by holding a fixing rod 6. The fixing plate 5 has a fixing rod 6 fixedly fitted inside and a pull rod 7 movably fitted inside. The fixing rod 6 allows the inspector to stand directly on the ground. The probe 3 is placed on the outside of the water supply pipe 1 via the fixing rod 6. The outer side of the top of the pull rod 7 is fixedly fitted with a locking block 8. The outer side of the top of the fixing rod 6 is threadedly fitted with a threaded sleeve 9. The outer side of the bottom of the pull rod 7 is fixedly fitted with a limiting block 10. The limiting block 10 can be pulled and rotated by the pull rod 7 so that the probe 3 can be clamped and fixed on the surface of the water supply pipe 1 by the limiting block 10. The position of the limiting block 10 can be adjusted by rotating the pull rod 7 to release the limitation between the limiting block 10 and the water supply pipe 1, thereby facilitating the installation and removal of the probe 3. A light ring 11 is provided on the outer side of the bottom of the probe 3.

[0028] The top of the limiting block 10 is provided with a V-groove 12 located below the water supply pipe 1. The V-groove 12 allows the probe 3 to be clamped by the limiting block 10, thereby limiting the limiting block 10 and making it difficult for the probe 3 to slide on the surface of the water supply pipe 1.

[0029] The inner side of the V-groove 12 is provided with symmetrically distributed anti-slip protrusions. The anti-slip protrusions can increase the friction coefficient between the V-groove 12 and the water supply pipe 1. Therefore, after the probe 3 is fixed on the outside of the water supply pipe 1, the probe 3 can be stably fixed on the surface of the water supply pipe 1 even without holding the fixing rod 6 by hand.

[0030] Among them, the outer sides of the fixed rod 6 and the pull rod 7 are movably sleeved with the limiting plate 13. The limiting plate 13 can limit the pull rod 7 to prevent it from bending under external force. The inner thread of the limiting plate 13 is sleeved with a bolt 14 located on the outer side of the fixed rod 6. The bolt 14 can be used to adjust the position of the limiting plate 13 on the fixed rod 6 according to the actual force of the pull rod 7, thereby ensuring that the fixed plate 5 and the fixed rod 6 are not easy to bend when the probe 3 is clamped and fixed by pulling the pull rod 7.

[0031] The lamp ring 11 has multiple equally spaced LED lights 15 inside. The LED lights 15 can illuminate the leak detection position of the multi-probe correlator, making it easier for the testing personnel to observe the position of the water supply pipe 1, and thus facilitating the installation and removal of the probe 3.

[0032] The inner side of the locking block 8 is provided with a locking groove 16 that is adapted to the fixing rod 6. The locking groove 16 can be used to avoid the fixing rod 6 while allowing the locking block 8 to be locked on the outer side of the fixing rod 6. This allows the locking block 8 to be moved along the axial direction of the fixing rod 6 by rotating the threaded sleeve 9. The locking block 8 can also be rotated to release the limiting position of the pull rod 7, thereby facilitating the rotation of the pull rod 7 to change the position of the limiting block 10.

[0033] The outer side of the top of the fixing rod 6 is provided with a threaded section that matches the threaded sleeve 9. The threaded section allows the threaded sleeve 9 to move and adjust along the threaded section. Depending on the outer diameter of the water supply pipe 1, the threaded sleeve 9 can be moved to the bottom of the locking block 8 so that the locking block 8 can be pressed by rotating the threaded sleeve 9, thereby driving the limiting block 10 to move and fix the probe 3.

[0034] Among them, the fixing plate 5, fixing rod 6, pull rod 7, clamping block 8, threaded sleeve 9, limiting block 10, limiting plate 13 and bolt 14 are all made of high-strength PC material. By using high-strength PC material, the overall weight of the multi-probe correlator can be reduced, ensuring that its internal components are not easily bent under stress. In addition, the outer surfaces of the fixing plate 5, fixing rod 6, pull rod 7, clamping block 8, threaded sleeve 9, limiting block 10, limiting plate 13 and bolt 14 are all coated with an anti-oxidation protective coating. The anti-oxidation protective coating ensures that the components of the multi-probe correlator will not oxidize due to long-term operation in a humid environment after long-term use, thus affecting its service life.

[0035] When detecting leaks in the water supply pipe 1, the probe 3 is threaded into the inside of the fixing plate 5 through the external thread 4, the cable is plugged into the cable connector 2, and the LED light 15 on the light ring 11 is turned on to illuminate the underground pipe. The probe 3 is placed on the surface of the water supply pipe 1 by holding the fixing rod 6. The position of the limiting block 10 is adjusted by pushing the pull rod 7. After rotating the pull rod 7 to rotate the limiting block 10 to the bottom of the water supply pipe 1, the slot 16 on the locking block 8 engages with the outer side of the top of the fixing rod 6. The locking block 8 is moved by rotating the threaded sleeve 9. While the locking block 8 is moving, the limiting block 10 is pulled by the pull rod 7 to clamp the water supply pipe 1, thereby clamping and fixing the probe 3 to the outside of the water supply pipe 1, completing the installation of the probe 3. After the leak detection is completed, the limiting block 8 is released by loosening the threaded sleeve 9. At this time, the limiting block 10 can be rotated to the side of the water supply pipe 1 by rotating the pull rod 7. Then, the components of the multi-probe correlator are removed from the inside of the underground pipe by pulling the fixing rod 6.

[0036] When the diameter of the water supply pipe 1 increases, the threaded sleeve 9 can be rotated to move it below the locking block 8 in advance to avoid the locking block 8 being located below the threaded sleeve 9 when it is engaged, which would make it inconvenient to install the probe 3. When the outer diameter of the water supply pipe 1 is large, the limiting plate 13 can be moved downward. When the outer diameter of the water supply pipe 1 is small, the limiting plate 13 can be moved upward to ensure that the pull rod 7 is not easily bent when subjected to force. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A multi-probe correlator for leak detection, comprising a water supply pipe (1) and a probe (3) located above the water supply pipe (1) and having a cable connector (2) at its top, characterized in that: The probe (3) has an external thread (4) on its outer side at the top, and the probe (3) is threadedly connected to a fixing plate (5) located above the water supply pipe (1) through the external thread (4). A fixing rod (6) is fixedly connected inside the fixing plate (5), and a pull rod (7) is movably connected inside the fixing plate (5). A locking block (8) is fixedly fitted on the outer side of the top of the pull rod (7). A locking groove (16) is provided on the inner side of the locking block (8) to match the fixing rod (6). The locking groove (16) is used to avoid the fixing rod (6) when the locking block (8) engages with the fixing rod (6), and allows the locking block (8) to pass through the thread. The sleeve (9) is screwed along the fixed rod (6) to move axially to adjust the position of the limiting block (10). The outer side of the top end of the fixed rod (6) is provided with a threaded section that is compatible with the threaded sleeve (9). The threaded section is used to guide the threaded sleeve (9) to move along the fixed rod (6) so as to press the clamping block (8) through the threaded sleeve (9), thereby driving the limiting block (10) to clamp the probe (3). The outer side of the top end of the fixed rod (6) is threaded with the threaded sleeve (9). The outer side of the bottom end of the pull rod (7) is fixedly fitted with the limiting block (10). The outer side of the bottom end of the probe (3) is provided with a lamp ring (11). The fixed rod (6) places the probe (3) on the surface of the water supply pipe (1) through the fixed plate (5). The pull rod (7) drives the locking block (8) to be locked on the outside of the top of the fixed rod (6). The locking block (8) is driven to move along the axial direction of the fixed rod (6) through the threaded connection of the threaded sleeve (9). Thus, the limit block (10) is pulled by the pull rod (7) to clamp and fix the probe (3) on the outside of the water supply pipe (1). The lamp ring (11) is used to illuminate the water supply pipe (1) inside the underground pipe to assist in the installation and removal of the probe (3).

2. The multi-probe correlator for leak detection according to claim 1, characterized in that: The top of the limiting block (10) is provided with a V-shaped groove (12) located below the water supply pipe (1). The V-shaped groove (12) is adapted to the outer surface of the water supply pipe (1) to enhance the limiting effect between the limiting block (10) and the water supply pipe (1) and prevent the probe (3) from sliding on the surface of the water supply pipe (1).

3. A multi-probe correlator for leak detection according to claim 2, characterized in that: The inner side of the V-groove (12) is provided with symmetrically distributed anti-slip protrusions. The anti-slip protrusions are used to increase the friction coefficient between the V-groove (12) and the water supply pipe (1), and further improve the stability of the probe (3) fixation.

4. A multi-probe correlator for leak detection according to claim 1, characterized in that: The outer sides of the fixed rod (6) and the pull rod (7) are movably sleeved with a limiting plate (13). The inner thread of the limiting plate (13) is sleeved with a bolt (14) located outside the fixed rod (6). The position of the limiting plate (13) on the fixed rod (6) is adjusted by the bolt (14).

5. A multi-probe correlator for leak detection according to claim 1, characterized in that: The lamp ring (11) is provided with a plurality of ring-shaped LED lights (15) evenly distributed inside, and the LED lights (15) are used to illuminate the surface of the water supply pipe (1).

6. A multi-probe correlator for leak detection according to claim 1, characterized in that: The fixing plate (5), fixing rod (6), pull rod (7), clamping block (8), threaded sleeve (9), limiting block (10), limiting plate (13) and bolt (14) are all made of high-strength PC material to reduce the overall weight and ensure the strength under stress. The outer surfaces of the fixing plate (5), fixing rod (6), pull rod (7), clamping block (8), threaded sleeve (9), limiting block (10), limiting plate (13) and bolt (14) are all sprayed with an anti-oxidation protective coating to prevent oxidation in the humid underground pipeline environment.

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