A leak detection device for pipe networks

Abstract

The application provides a pipe network leakage detection device, which comprises a detection host used for displaying a detection signal, an input end of the detection host is provided with a connecting line, an output end of the detection host is provided with earphones used for listening whether the pipeline leaks, a detection rod is installed at one end of the connecting line away from the detection host, a sensor used for detecting the pipeline is installed at the front end of the detection rod, and a supporting assembly used for improving the stability of the detection rod is installed outside the detection rod. The supporting assembly provided by the application can provide additional supporting points for the detection rod, so that the sensor can be stably supported on the outer wall of the pipeline, effectively prevents the poor contact between the sensor and the contact point of the pipeline caused by the manual shaking of the detection personnel when holding the detection rod, reduces the interference signal caused by the operation error, enables the sensor to more clearly collect the vibration signal generated by the pipeline leakage, and thus greatly improves the detection accuracy and reliability and reduces the probability of misjudgment and missed detection.

Description

Technical Field

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

[0002] Drainage pipe networks are an important component of urban infrastructure, acting like the "blood vessels" of a city. They are responsible for collecting and transporting domestic sewage, industrial wastewater, and rainwater. Their operational status directly affects urban flood control, water environment protection, and public safety. However, due to various factors such as pipe aging, geological subsidence, construction impacts, and corrosion, leaks or ruptures are inevitable. Therefore, leak detection of pipe networks is crucial. Currently, one of the commonly used leak detection methods is to use a listening leak detection device.

[0003] Existing listening-type leak detection devices require operators to hold a probe rod and place the sensor at the tip of the rod against the outer wall of the pipe. During this process, it's crucial to ensure the probe rod is perpendicular to the pipe. The detection accuracy relies heavily on the operator's experience and skill. Furthermore, the small contact area between the sensor and the pipe makes it prone to poor contact due to hand-held shaking, generating friction noise. This interference can mask faint leak sounds, especially in noisy environments, easily leading to misjudgments or missed detections. Therefore, we propose an improved pipe network leak detection device. Summary of the Invention

[0004] The purpose of this invention is to address the issue that when using a leak detection device, the operator's handheld probe is easily shaken, causing poor contact between the sensor and the pipe, which can generate friction noise. These interference signals can mask the faint sound of leaks, and especially in complex noise environments, this can easily lead to misjudgment or missed detection.

[0005] To achieve the above-mentioned objectives, this invention provides a pipeline leak detection device to improve the aforementioned problems.

[0006] The application is as follows: A pipeline leak detection device includes a detection host for displaying detection signals. The input end of the detection host is provided with a connecting cable, and the output end of the detection host is provided with an earphone for listening to whether the pipeline is leaking. A probe is installed at the end of the connecting cable away from the detection host. A sensor for detecting the pipeline is installed at the front end of the probe. A support component to improve the stability of the probe is installed on the outside of the probe.

[0007] As a preferred technical solution of this application, the support component includes guide grooves, and two guide grooves are provided. The two guide grooves are symmetrically opened on the outer wall of the probe rod, and a movable ring is slidably connected in both guide grooves. The movable ring is slidably sleeved on the outside of the probe rod.

[0008] As a preferred technical solution of this application, the upper end of the movable ring is fixedly connected to two symmetrically arranged support rods. The two support rods are inclined, and each of the two support rods is fixedly connected to a pad. The upper end of the pad is provided with an anti-slip pad layer.

[0009] As a preferred technical solution of this application, a moving cavity is provided inside the moving ring, a spring is fixedly connected to the inner wall of the moving cavity on the side away from the probe rod, a moving plate is slidably connected inside the moving cavity, and the moving plate is fixedly connected to the side of the spring near the probe rod.

[0010] As a preferred technical solution of this application, the outer wall of the probe has two slots that are symmetrically distributed vertically, and a locking block is fixedly connected to the side of the moving plate near the probe. The locking block penetrates the inner wall of one side of the moving cavity, and the locking block and the slots are engaged in a locking manner.

[0011] As a preferred technical solution of this application, a pull rod is passed through the outer wall of the movable ring, one end of the pull rod is fixedly connected to the side of the movable plate away from the probe rod, and a toggle block is fixedly connected to the end of the pull rod away from the probe rod. The side wall of the toggle block is provided with anti-slip texture.

[0012] As a preferred technical solution of this application, the detection host is provided with a protective component, the protective component includes a protective shell, the protective shell is fixedly connected to the outside of the detection host and the protective shell and the detection host are matched, and a handle is fixedly connected to one side of the protective shell.

[0013] As a preferred technical solution of this application, the detection host is fixedly connected to both sides with connecting rods, and each of the two connecting rods is fixedly connected to one side with a buckle.

[0014] As a preferred technical solution of this application, an anti-slip sleeve is fixedly fitted on the lower part of the outer side of the probe, and the anti-slip sleeve is provided with anti-slip stripes on the outside.

[0015] As a preferred technical solution of this application, a limiting ring is fixedly sleeved on the upper part of the probe.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: In the scheme of this application: To address the problem that current leak detection devices are prone to sensor-pipe contact issues due to hand-held shaking, which can generate friction noise and mask faint leak sounds, especially in noisy environments, this application proposes a support component that provides additional support points for the probe. This allows the sensor at the probe's tip to be stably supported against the pipe wall, effectively preventing sensor-pipe contact issues and friction noise caused by hand-held shaking. This reduces interference signals from operational errors, enabling the sensor to more clearly capture vibration signals from pipe leaks, thus significantly improving detection accuracy and reliability and lowering the probability of misjudgments and missed detections. Furthermore, the external protective components of the main unit prevent damage during transport due to bumps, drops, or scratches, extending the equipment's lifespan. Attached Figure Description

[0017] Figure 1 A schematic diagram of the main structure of the pipeline leak detection device provided in this application; Figure 2 Another perspective schematic diagram of the main structure of the pipeline leak detection device provided in this application; Figure 3 A schematic diagram of the guide groove structure for the pipeline leak detection device provided in this application; Figure 4 A schematic diagram of the support component structure for the pipeline leak detection device provided in this application; Figure 5 A schematic diagram of the connecting rod and buckle structure of the pipeline leak detection device provided in this application.

[0018] The image shows: 1. Detection host; 2. Connecting cable; 3. Earphone; 4. Probe; 5. Sensor; 6. Support assembly; 601. Guide groove; 602. Moving ring; 603. Support rod; 604. Shim; 605. Moving cavity; 606. Spring; 607. Moving plate; 608. Slot; 609. Block; 610. Pull rod; 611. Actuating block; 7. Protective shell; 8. Handle; 9. Connecting rod; 10. Buckle; 11. Anti-slip sleeve; 12. Limiting ring. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0020] As described in the background section, when using a leak detection device, the operator's hand-held probe is easily shaken, which can cause poor contact between the sensor and the pipe, generating friction noise. These interference signals can mask the faint sound of leaks, especially in complex noise environments, which can easily lead to misjudgment or missed detection.

[0021] To solve this technical problem, this utility model provides a pipeline leak detection device, which is applied to the listening-type leak detection of pipelines.

[0022] For details, please refer to Figures 1-5 The pipeline leak detection device specifically includes: The detection host 1 is used to display the detection signal. The input end of the detection host 1 is equipped with a connecting line 2. The output end of the detection host 1 is equipped with an earphone 3 for listening to whether the pipe is leaking. The end of the connecting line 2 away from the detection host 1 is equipped with a probe 4. The front end of the probe 4 is equipped with a sensor 5 for detecting the pipe. The probe 4 is equipped with a support component 6 to improve the stability of the probe 4.

[0023] The pipeline leak detection device provided by this utility model has a support component 6 that provides additional support points for the probe rod 4, allowing the sensor 5 at the front end of the probe rod 4 to be stably supported on the outer wall of the pipeline. This effectively prevents poor contact or friction noise between the sensor 5 and the pipeline caused by human shaking when the testing personnel hold the probe rod 4, reducing interference signals caused by operational errors. This allows the sensor 5 to more clearly collect vibration signals generated by pipeline leaks, thereby significantly improving the accuracy and reliability of detection and reducing the probability of misjudgment and missed detection. At the same time, the detection host 1 is additionally equipped with protective components to prevent damage during transportation due to bumps, drops, or scratches, extending the service life of the equipment.

[0024] It is worth noting that the detection host 1, earphone 3 and sensor 5 are all existing technologies. Sensor 5 is a piezoelectric acceleration sensor, which is responsible for picking up the mechanical vibration generated by the pipeline leak and converting it into an electrical signal. This signal is transmitted to the detection host 1 through the connecting line 2. The amplification and filtering circuit inside the detection host 1 processes and amplifies the signal, and finally outputs the processed audio signal to the earphone 3 for the operator to listen to and judge the leak situation. This will not be elaborated further here.

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0026] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] Example 1, please refer to Figures 1-5 A pipeline leak detection device includes a detection host 1 for displaying detection signals, an input cable 2 for the input of the detection host 1, and an earphone 3 for listening to whether the pipeline is leaking at the output of the detection host 1. A probe 4 is installed at the end of the connection cable 2 away from the detection host 1, and a sensor 5 for detecting pipeline leaks is installed at the front end of the probe 4. A support component 6 for improving the stability of the probe 4 is installed on the outside of the probe 4. When pipeline leak detection is required, the user pulls the actuating block 611, which drives the pull rod 610 and the moving plate 607 to slide, thereby compressing the spring 606 and causing the locking block 609 to disengage from the locking groove 608. At this time, the moving ring 602 can slide freely up and down along the guide groove 601. Then, the moving ring 602 is operated to the locking groove 608 on the side closer to the sensor 5, so that the locking block 609 is facing the locking groove 608. Then the spring 606 returns to its original position, allowing the locking block 609 to move into the locking groove 608. Locking the moving ring 602 ensures that the upper end of the gasket 604 and the detection end of the sensor 5 are on the same horizontal plane. The user then holds the probe 4 and places the sensor 5 at its front end against the pipe sidewall. Simultaneously, the two gaskets 604 also press against the outer wall of the pipe. The gaskets 604 on both sides form a stable support structure on both sides of the sensor 5 on the probe 4, allowing the sensor 5 at the front end of the probe 4 to be stably supported against the outer wall of the pipe. This effectively prevents poor contact or frictional noise caused by human shaking when the operator holds the probe 4, reducing interference signals caused by operational errors. This allows the sensor 5 to more clearly collect vibration signals generated by pipe leaks, significantly improving the accuracy and reliability of the detection and reducing the probability of misjudgment and missed detection. After use, the moving ring 602 is similarly adjusted to the slot 608 on the side away from the sensor 5, making it easier for the user to store the device.

[0029] Furthermore, such as Figures 1-4As shown, the support component 6 includes guide grooves 601. There are two guide grooves 601, which are symmetrically opened on the outer wall of the probe rod 4. A moving ring 602 is slidably connected in the two guide grooves 601. The moving ring 602 is slidably sleeved on the outside of the probe rod 4. Through the sliding cooperation between the two symmetrically arranged guide grooves 601 and the moving ring 602, it is ensured that the moving ring 602 can move up and down smoothly and without rotation along the axis of the probe rod 4, so that the moving ring 602 can move quickly to the designated position.

[0030] Furthermore, such as Figure 3 As shown, the upper end of the moving ring 602 is fixedly connected to two symmetrically arranged support rods 603. The two support rods 603 are inclined, and each of the two support rods 603 is fixedly connected to a gasket 604. The upper end of the gasket 604 is provided with an anti-slip pad. The symmetrically arranged gaskets 604 form a stable support structure, which can effectively disperse and transmit the operating force of the probe 4 to the side wall of the pipe, greatly increasing the stability of the support, thereby preventing the probe 4 from sliding or tipping over during operation, and ensuring the continuous constant contact pressure between the sensor 5 and the detection point.

[0031] Furthermore, such as Figure 4As shown, a movable cavity 605 is provided inside the movable ring 602. A spring 606 is fixedly connected to the inner wall of the movable cavity 605 away from the probe rod 4. A movable plate 607 is slidably connected inside the movable cavity 605. The movable plate 607 is fixedly connected to the side of the spring 606 near the probe rod 4. Two slots 608 are provided on the outer wall of the probe rod 4. A locking block 609 is fixedly connected to the side of the movable plate 607 near the probe rod 4. The locking block 609 penetrates the inner wall of one side of the movable cavity 605 and engages with the slots 608. A pull rod 610 penetrates the outer wall of the movable ring 602. One end of the pull rod 610 is fixedly connected to the side of the movable plate 607 away from the probe rod 4. A toggle block 611 is fixedly connected to the other end of the pull rod 610 away from the probe rod 4. The side wall of the toggle block 611 is provided with anti-slip texture. When the user pulls the toggle block 611, the toggle block 611 drives the pull rod 610 and the movable plate 607. 07. Slide the spring 606 to compress the locking block 609 and disengage it from the slot 608. At this time, the moving ring 602 can slide freely up and down along the guide groove 601. Then, move the moving ring 602 to the slot 608 on the side closer to the sensor 5 so that the locking block 609 is facing the slot 608. Then, the spring 606 returns to its original position, allowing the locking block 609 to move into the slot 608, thereby locking the moving ring 602. At this time, the upper end of the gasket 604 and the detection end of the sensor 5 are on the same horizontal plane. Then, the user holds the probe 4 and places the sensor 5 at the front end of the probe 4 against the side wall of the pipe. At the same time, the two gaskets 604 also abut against the outer wall of the pipe. The gaskets 604 on both sides form a stable support structure on both sides of the sensor 5 of the probe 4. After the device is used, similarly, adjust the moving ring 602 to the slot 608 on the side away from the sensor 5 to facilitate the user's storage of the device.

[0032] Example 2 further optimizes the pipeline leak detection device provided in Example 1, specifically, as follows: Figure 1 , Figure 2 and Figure 5 As shown, the external of the detection host 1 is equipped with a protective component, which includes a protective shell 7. The protective shell 7 is fixedly connected to the outside of the detection host 1 and matches the detection host 1. A handle 8 is fixedly connected to one side of the protective shell 7. The protective shell 7, which is set outside the detection host 1, provides physical protection to prevent the detection host 1 from being bumped and damaged during field transportation and operation, thereby improving the service life of the detection host 1.

[0033] Furthermore, such as Figure 5 As shown, both sides of the detection host 1 are fixedly connected to connecting rods 9, and one side of each connecting rod 9 is fixedly connected to a buckle 10. The buckle 10 can fix the data cable of the connecting cable 2 and the earphone 3, effectively avoiding the possibility of the cable being accidentally pulled or falling off during operation, ensuring the continuous stability of signal transmission, thereby reducing operation interruption caused by cable problems and improving the efficiency and reliability of detection work.

[0034] Example 3 further optimizes the pipeline leak detection device provided in Example 1, specifically, as follows: Figure 4 As shown, an anti-slip sleeve 11 is fixedly fitted on the lower part of the probe 4. The anti-slip sleeve 11 has anti-slip stripes on its outside. The anti-slip sleeve 11 with anti-slip stripes on the lower part of the probe 4 significantly increases the friction between the operator's hand and the probe 4, ensuring the firmness and stability of the grip. It effectively prevents slippage or slippage caused by hand sweat and fatigue from long-term operation, thereby ensuring the continuity and stability of the contact between the sensor 5 and the pipeline detection point, and improving the safety of operation and the reliability of detection data.

[0035] Furthermore, such as Figure 4 As shown, a limiting ring 12 is fixedly sleeved on the upper part of the probe 4. The limiting ring 12 limits the movement ring 602, allowing the user to further support the movement ring 602 during use, thereby improving the stability of the support component 6.

[0036] The usage process of the pipeline leak detection device provided by this utility model is as follows: When pipeline leak detection is required, the user pulls the actuating block 611. The actuating block 611 causes the pull rod 610 and the moving plate 607 to slide, thereby compressing the spring 606 and causing the locking block 609 to disengage from the locking groove 608. At this time, the moving ring 602 can slide freely up and down along the guide groove 601. Then, the moving ring 602 is moved to the locking groove 608 on the side closer to the sensor 5, so that the locking block 609 is aligned with the locking groove 608. Then, the spring 606 returns to its original position, allowing the locking block 609 to move into the locking groove 608, thereby locking the moving ring 602. At this time, the upper end of the gasket 604 and the detection end of the sensor 5 are on the same horizontal plane. Then, the user holds the probe 4 and places the sensor 5 at the front end of the probe 4 against the side wall of the pipeline. Meanwhile, the two gaskets 604 also abut against the outer wall of the pipe. The gaskets 604 on both sides form a stable support structure on both sides of the sensor 5 of the probe 4, so that the sensor 5 at the front end of the probe 4 can be stably supported on the outer wall of the pipe. This effectively prevents poor contact between the sensor 5 and the pipe or friction noise caused by human shaking when the testing personnel hold the probe 4. It also reduces interference signals caused by operational errors, and enables the sensor 5 to more clearly collect the vibration signal generated by the pipe leak, thereby greatly improving the accuracy and reliability of the detection and reducing the probability of misjudgment and missed detection. After the device is used, similarly, the moving ring 602 is adjusted to the slot 608 on the side away from the sensor 5, so as to facilitate the user to store the device. The protective shell 7 installed on the outside of the detection host 1 provides physical protection to prevent the detection host 1 from being bumped and damaged during field transportation and operation, thereby extending the service life of the detection host 1. In addition, the buckle 10 can fix the data cable of the connecting cable 2 and the earphone 3, thereby ensuring the stability of signal transmission and avoiding data transmission interruption due to operational errors, thus improving detection efficiency.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A pipeline leak detection device, characterized in that, The device includes a detection host (1) for displaying detection signals. The input end of the detection host (1) is equipped with a connecting cable (2), and the output end of the detection host (1) is equipped with an earphone (3) for monitoring whether the pipe is leaking. A probe (4) is installed at the end of the connecting cable (2) away from the detection host (1). A sensor (5) for detecting the pipe is installed at the front end of the probe (4). A support assembly (6) for improving the stability of the probe (4) is installed outside the probe (4). The support assembly (6) includes a guide groove. (601) Two guide grooves (601) are provided, and the two guide grooves (601) are symmetrically opened on the outer wall of the probe (4). A movable ring (602) is slidably connected in both guide grooves (601). The movable ring (602) is slidably sleeved on the outside of the probe (4). Two symmetrically arranged support rods (603) are fixedly connected to the upper end of the movable ring (602). The two support rods (603) are inclined. A gasket (604) is fixedly connected to the upper end of each of the two support rods (603). The upper end of the pad (604) is provided with an anti-slip pad layer. A moving cavity (605) is opened in the moving ring (602). A spring (606) is fixedly connected to the inner wall of the moving cavity (605) away from the probe rod (4). A moving plate (607) is slidably connected in the moving cavity (605). The moving plate (607) is fixedly connected to the side of the spring (606) near the probe rod (4). Two slots (608) are opened on the outer wall of the probe rod (4) in a vertically symmetrical arrangement. The moving plate (607) is close to the probe rod (4). A locking block (609) is fixedly connected to one side of the probe (4). The locking block (609) penetrates the inner wall of one side of the moving cavity (605), and the locking block (609) and the slot (608) are engaged. A pull rod (610) penetrates the outer wall of the moving ring (602). One end of the pull rod (610) is fixedly connected to the side of the moving plate (607) away from the probe (4). A toggle block (611) is fixedly connected to the end of the pull rod (610) away from the probe (4). The side wall of the toggle block (611) is provided with anti-slip texture.

2. The pipeline leak detection device according to claim 1, characterized in that, The detection host (1) is provided with a protective component, which includes a protective shell (7). The protective shell (7) is fixedly connected to the outside of the detection host (1), and the protective shell (7) and the detection host (1) are matched. A handle (8) is fixedly connected to one side of the protective shell (7).

3. The pipeline leak detection device according to claim 1, characterized in that, The detection host (1) is fixedly connected to both sides with connecting rods (9), and each of the two connecting rods (9) is fixedly connected to one side with a buckle (10).

4. A pipeline leak detection device according to claim 1, characterized in that, The probe (4) is fixedly fitted with an anti-slip sleeve (11) at the lower part of its exterior, and the anti-slip sleeve (11) has anti-slip stripes on its exterior.

5. A pipeline leak detection device according to claim 1, characterized in that, A limiting ring (12) is fixedly sleeved on the upper part of the probe (4).

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