A buried gas pipeline leak detection device

Abstract

The utility model discloses a buried gas pipeline leak detection device, include: detection pipeline, the upper left and right sides of detection pipeline symmetry is provided with the groove, the inside of detection pipeline is provided with cleaning mechanism, wherein cleaning mechanism includes pipe silk, clamping groove, first moving link, second moving link, third moving link, limit hole, spacing rod and first spring, the inside of detection pipeline upper thread connection has pipe silk. This buried gas pipeline leak detection device, through having set up the cleaning mechanism, can clean the soil that enters the inside of detection pipeline, guarantees the accurate detection of rear side probe, is provided with positioning mechanism simultaneously, has set up the detector on the detection pipeline, is convenient for subsequent overhaul, and the repair worker is positioned to it fast, has saved the time of searching vigorously, in addition has set up the clamping mechanism, can be limited to the probe that enters the inside of pipeline, makes it not produce the condition of shaking when detecting.

Description

Technical Field

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

[0002] Gas pipelines are an important part of urban infrastructure, which is related to the daily life and safety of life and property of the general public. In order to further improve the safe operation of urban gas pipeline networks, timely detect and judge gas leaks, and accurately find and locate leak points, it is necessary to permanently install buried gas leak detection pipes. At present, there are various buried gas pipeline leak detection devices on the market, but they still have some shortcomings.

[0003] Existing buried gas pipeline leak detection devices suffer from problems such as large size, inconvenience in carrying, and long-term underground installation of the detection pipe leading to the accumulation of soil inside the pipe, which can affect the insertion of the probe into the pipe. For example, Chinese utility model patent CN221923135U discloses a buried gas pipeline leak detection device, which includes: a gas collection chamber, located on the side of the gas pipeline trench facing the buried gas pipeline, and connected to the compacted medium sand filling the buried gas pipeline; a leak detection well, located on the side of the gas collection chamber facing the ground, and the leak detection well is set close to the ground; and a leak detection pipe, one end of which passes through the masonry of the gas pipeline trench and extends into the gas collection chamber, and the other end extends into the leak detection well. This application proposes a gas collection chamber for collecting leaking gas from buried pipelines. A leak detection well is located near the ground. A leak detection tube with a vent is inserted into the gas collection chamber at one end and into the leak detection well at the other. The leak detection tube guides the leaking gas along the tube to the leak detection well, allowing gas monitoring devices or pipeline inspectors to detect leaks in the buried gas pipeline. This avoids the limitation of existing surface detection methods that cannot detect leaks in buried gas pipelines quickly. However, this device, being buried underground, requires significant time for subsequent maintenance workers to locate it. Furthermore, the probe inserted into the detection tube may wobble, affecting the detection results. Therefore, we propose a buried gas pipeline leak detection device to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide a buried gas pipeline leak detection device to solve the problems of the current buried gas pipeline leak detection devices mentioned in the background art. These devices detect that the pipeline is buried underground for a long time, and a large amount of soil will enter the pipeline, which will affect the subsequent probe to enter the pipeline for detection. At the same time, the detection pipeline is set underground, which will cause workers to spend a lot of time searching for it during subsequent maintenance. In addition, the probe will shake when it enters the detection pipeline, which requires manual handling and consumes a lot of manpower.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a buried gas pipeline leak detection device, comprising:

[0006] The testing pipe has symmetrical grooves on its upper left and right sides;

[0007] Also includes:

[0008] The detection pipe is equipped with a cleaning mechanism, which includes a tube wire, a groove, a first moving rod, a second moving rod, a third moving rod, a limiting hole, a limiting rod, and a first spring. The upper part of the detection pipe is threaded with a tube wire, and the lower part of the tube wire is slidably connected with a first moving rod. The second moving rod is slidably arranged inside the first moving rod, and the third moving rod is slidably arranged inside the second moving rod.

[0009] A clamping mechanism is provided on the upper outer side of the tube wire. The clamping mechanism includes a fixing ring, a second spring, a support plate, a limiting plate, and a threaded rod. Limiting plates are symmetrically arranged on the upper outer side of the tube wire. A threaded rod is fixedly connected to the outer side of the limiting plate. A fixing ring is threadedly connected to the outer side of the threaded rod. A second spring is provided on the outer side of the fixing ring.

[0010] Preferably, a handle is provided above the middle part of the tube wire, and a slot is opened inside the lower part of the tube wire, and a locking block is engaged and connected inside the slot, and the locking block is fixedly installed above the push block.

[0011] Preferably, the lower part of the tubing, the first moving rod, and the second moving rod are all provided with limiting holes, and the limiting holes are engaged with limiting rods, and the inner side of the limiting rods is fixedly connected with a first spring.

[0012] Preferably, a support plate is fixedly connected to the outer side of the second spring, and the lower part of the support plate is fixedly connected to the detection pipe.

[0013] Preferably, a protective cover is fitted onto the top of the detection pipe, and a fixed detection instrument is installed on the outside of the detection pipe.

[0014] Preferably, the fixed detector is provided with a protective shell on its outer side, and the left and right sides of the outer side of the protective shell are engaged with the connecting block, and the connecting block is fixedly connected to the detection pipeline.

[0015] Preferably, the connecting block and the protective shell are fixedly connected by bolts.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the buried gas pipeline leak detection device is equipped with a cleaning mechanism to clean the soil inside the detection pipeline, ensuring accurate detection by the rear probe. It is also equipped with a positioning mechanism to install the detector on the detection pipeline, which facilitates the quick location of the detector by maintenance workers during subsequent maintenance, greatly saving the search time. In addition, a clamping mechanism is provided to limit the probe inside the pipeline, so that it will not shake during detection.

[0017] 1. It is equipped with a detection pipe, a tube wire, and a handle. The tube wire is installed at the top inside the detection pipe, which is hollow inside. The tube wire is threaded to the top inside of the detection pipe, which can seal the top inside of the detection pipe. At the same time, a handle is installed at the top middle of the tube wire. By pinching the handle, the tube wire can be rotated.

[0018] 2. It is equipped with a tube wire, a push block, a locking block, and a locking groove. The locking groove is opened inside the lower part of the tube wire, and the inside of the locking groove is engaged with the locking block. At the same time, the lower part of the locking block is fixedly connected to the push block. When the locking block and the locking groove are engaged, the push block will fit tightly against the lower part of the tube wire, that is, the push block is easy to disassemble.

[0019] 3. The device includes a slot, a first moving rod, a second moving rod, and a third moving rod. The first moving rod slides inside the tubing, the second moving rod slides inside the first moving rod, and the third moving rod slides inside the second moving rod. The lower part of the third moving rod is fixedly connected to a push block. Pulling the push block downwards causes the slot to disengage. Then, pulling the first moving rod downwards inside the tubing, and simultaneously pulling the second and third moving rods downwards inside the first and third moving rods, creates a sliding effect. The upper parts of the first, second, and third moving rods... The inner left and right sides are equipped with first springs. The outer side of the first spring is fixedly connected to the limiting rod. The first spring has elasticity. Secondly, the inner lower left and right sides of the tube wire, the first moving rod and the second moving rod are opened. When the first moving rod, the second moving rod and the third moving rod slide, when the outer limiting rod moves to the position of the limiting hole, the first spring will generate elasticity, which will push the limiting rod to move outward and engage with the limiting hole. This allows the tube wire, the first moving rod, the second moving rod and the third moving rod to be stretched and spliced. After splicing, the inside of the inspection pipe can be poked to clean the dirt inside.

[0020] 4. It is equipped with a fixing ring, a second spring, a limiting plate, and a threaded rod. The limiting plate is set on the outer side above the tube wire, and the outer side of the limiting plate is fixedly connected to the threaded rod. That is, when the probe enters the interior of the detection pipe, the limiting plate can be located on the outer side of the probe connection line. Since the threaded rod and the fixing ring are threaded together, and the outer side of the fixing ring is equipped with a second spring and a support plate for support, when the threaded rod and the fixing ring are threaded together, the limiting plate will be firmly clamped on the outer side of the probe connection line to limit its movement.

[0021] 5. Equipped with a fixed detector, protective shell, connecting blocks, and bolts, the fixed detector is positioned on the outside of the pipeline. This allows workers to quickly locate the fixed detector when using a mobile detector, facilitating subsequent maintenance. A protective shell protects the fixed detector, and the left and right sides of the protective shell engage with the connecting blocks installed on the outside of the pipeline. Bolts are inserted into the connecting blocks and tightened, ensuring the protective shell is securely installed on the outside of the pipeline for protection. Attached Figure Description

[0022] Figure 1 This is a perspective structural diagram of the present invention;

[0023] Figure 2 This is a perspective view of the connection structure of the limiting plate, threaded rod, and protective cover of this utility model;

[0024] Figure 3 This is a perspective view of the connection between the fixed detector, protective shell, and connecting block assembly of this utility model;

[0025] Figure 4 This is a schematic diagram of the perspective cross-sectional structure of the inspection pipeline of this utility model;

[0026] Figure 5 This is a perspective view of the connection structure of the tubing, handle, and pusher block of this utility model;

[0027] Figure 6 This is a perspective view of the connection structure of the limiting hole, limiting rod, and first spring of this utility model.

[0028] In the diagram: 1. Inspection pipe; 2. Pipe wire; 3. Handle block; 4. Push block; 5. Locking block; 6. Locking groove; 7. First moving rod; 8. Second moving rod; 9. Third moving rod; 10. Limiting hole; 11. Limiting rod; 12. First spring; 13. Fixing ring; 14. Second spring; 15. Support plate; 16. Limiting plate; 17. Threaded rod; 18. Protective cover; 19. Handle groove; 20. Fixing the inspection instrument; 21. Protective shell; 22. Connecting block; 23. Bolt. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1-6 This utility model provides a technical solution:

[0031] Example 1: To address the problems existing in the prior art, this example provides the following technical solution: a buried gas pipeline leak detection device, comprising a detection pipeline 1; a cleaning mechanism located inside the detection pipeline 1 to clean the soil inside, allowing the probe to quickly enter the pipeline for detection; a positioning mechanism located outside the detection pipeline 1 to quickly locate its position during subsequent maintenance; and a clamping mechanism located above the pipe wire 2 to fix the probe connection pipe, ensuring rapid detection by the probe. The device can be activated by first pinching the handle installed above the pipe wire 2. Block 3 causes the tubing 2 to rotate inside the detection pipe 1, separating it from the detection pipe 1. Then, the push block 4 is pulled, causing it to disengage from the bottom of the tubing 2. At this time, the locking block 5 installed above the push block 4 will separate from the locking groove 6 opened below the tubing 2. Then, the first moving rod 7, the second moving rod 8, and the third moving rod 9 are pulled. Since the first moving rod 7, the second moving rod 8, and the third moving rod 9 are all provided with first springs 12 and limiting rods 11 on both sides above, and the tubing 2, the first moving rod 7, and the second moving rod 8 are all provided with limiting holes 10 on the lower outer sides, that is, when the limiting rod 11 moves to the position of the limiting hole 10, the first spring 12 has elasticity, that is, the first spring 12... 2 will bounce, pushing the limiting rod 11 outward to engage with the limiting hole 10. At this time, the pipe wire 2, the first moving rod 7, the second moving rod 8, and the second moving rod 8 will be spliced ​​together. Then, it can be pushed into the inside of the detection pipe 1 to clean the soil inside the detection pipe 1. A fixed detector 20 is set on the outside of the detection pipe 1. When the worker uses the mobile detector, the position of the fixed detector 20 can be quickly detected, which can reduce the time the worker spends searching for the detection pipe 1. At the same time, a protective shell 21 is set on the outside of the fixed detector 20 for protection. The connecting block 22 installed on the outside of the protective shell 21 and the outside of the detection pipe 1 is fixed by bolts 23. First, a fixed connection is established. Second, grooves 19 are provided on the left and right sides above the detection pipe 1 for easy handling. Third, limiting plates 16 are provided on the left and right sides above the outer side of the tube wire 2. A threaded rod 17 is fixedly installed on the outer side of the limiting plate 16. When the probe enters the detection pipe 1, the threaded rod 17 can be threadedly fixed to the fixing ring 13. The outer side of the fixing ring 13 is fixed with a second spring 14 and a support plate 15. When the threaded rod 17 is threadedly connected to the fixing ring 13, the limiting plate 16 can be pushed inward to fit tightly with the probe connecting tube, thereby limiting its movement. Fourth, a protective cover 18 is locked on the top of the detection pipe 1 for protection.

[0032] Existing detection devices, when the detection pipe 1 is buried underground for a long time, will allow a large amount of soil to enter, which will affect the subsequent detection by the probe entering the pipe. Therefore, this embodiment adopts the following technical solution, such as... Figure 4 , Figure 5 and Figure 6 As shown, the cleaning mechanism includes a tube wire 2 positioned above and inside the detection pipe 1. A first moving rod 7 is slidably mounted inside the tube wire 2, and a second moving rod 8 is slidably mounted inside the first moving rod 7. A third moving rod 9 is slidably mounted inside the second moving rod 8. The lower part of the third moving rod 9 is fixedly connected to a pushing block 4. Pulling the pushing block 4 downward causes the locking block 5 to disengage from the locking groove 6. At this time, pulling the first moving rod 7 downward inside the tube wire 2, the second moving rod 8 downward inside the first moving rod 7, and the third moving rod 9 downward inside the second moving rod 8 all cause the cleaning mechanism to be activated. The cleaning mechanism includes a tube wire 2 positioned above the first moving rod 7, the second moving rod 8, and the third moving rod 9. Each component is equipped with a first spring 12, which is fixedly connected to the limiting rod 11 on its outer side. The first spring 12 also has elasticity. Furthermore, limiting holes 10 are opened on the lower left and right sides of the inner side of the tube wire 2, the first moving rod 7, and the second moving rod 8. That is, when the first moving rod 7, the second moving rod 8, and the third moving rod 9 slide, when the limiting rod 11 on the outer side moves to the position of the limiting hole 10, the first spring 12 will generate elasticity, which will push the limiting rod 11 to move outward and engage with the limiting hole 10. This allows the tube wire 2, the first moving rod 7, the second moving rod 8, and the third moving rod 9 to be stretched and spliced. After splicing, the inside of the inspection pipe 1 can be poked to clean the soil inside.

[0033] Example 2: In existing detection devices, the detection pipe 1 is installed underground. During subsequent maintenance, this results in workers spending a significant amount of time searching for it. Therefore, this example uses the following technical solution: Figure 1 , Figure 2 and Figure 3 As shown, the positioning mechanism includes a fixed detector 20 installed on the outside of the detection pipe 1. The fixed detector 20 allows workers to quickly locate its position when using a mobile detector, facilitating subsequent maintenance of the fixed detector 20. A protective shell 21 is installed on the outside of the fixed detector 20 for protection. The left and right sides of the protective shell 21 are engaged with connecting blocks 22 installed on the outside of the detection pipe 1. Bolts 23 are inserted into the connecting blocks 22 and the inner side of the protective shell 21 and tightened, ensuring the protective shell 21 is securely installed on its outside for protection.

[0034] Example 3: Existing detection devices suffer from problems such as probe shaking when entering the detection pipe 1, requiring manual handling, which is labor-intensive. Therefore, this example addresses these issues with the following technical solution, as shown in the figure. Figure 2 and Figure 4 As shown, the clamping mechanism includes a limiting plate 16 located on the outer side above the tube wire 2. The outer side of the limiting plate 16 is fixedly connected to the threaded rod 17. That is, when the probe enters the interior of the detection pipe 1, the limiting plate 16 can be located on the outer side of the probe connecting pipe. Since the threaded rod 17 and the fixing ring 13 are threaded together, and the outer side of the fixing ring 13 is provided with a second spring 14 and a support plate 15 for support, that is, when the threaded rod 17 and the fixing ring 13 are threaded together, the limiting plate 16 will be firmly clamped on the outer side of the probe connecting wire to limit its movement.

[0035] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0036] Although the present invention 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 embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A buried gas pipeline leak detection device, comprising: The detection pipe (1) has grooves (19) symmetrically arranged on the upper left and right sides; Its characteristic is that it further includes: The detection pipe (1) is equipped with a cleaning mechanism, which includes a tube wire (2), a slot (6), a first moving rod (7), a second moving rod (8), a third moving rod (9), a limiting hole (10), a limiting rod (11), and a first spring (12). The tube wire (2) is threadedly connected to the upper part of the detection pipe (1), and the first moving rod (7) is slidably connected to the lower part of the tube wire (2). The second moving rod (8) is slidably arranged inside the first moving rod (7), and the third moving rod (9) is slidably arranged inside the second moving rod (8). A clamping mechanism is provided on the upper outer side of the tube wire (2), wherein the clamping mechanism includes a fixing ring (13), a second spring (14), a support plate (15), a limiting plate (16) and a threaded rod (17). The limiting plate (16) is symmetrically provided on the upper outer side of the tube wire (2), and the threaded rod (17) is fixedly connected to the outer side of the limiting plate (16), and the fixing ring (13) is threadedly connected to the outer side of the threaded rod (17), and the second spring (14) is provided on the outer side of the fixing ring (13).

2. The buried gas pipeline leak detection device according to claim 1, characterized in that: A handle (3) is provided above the middle part of the tube wire (2), and a slot (6) is provided inside the lower part of the tube wire (2). A locking block (5) is engaged and connected inside the slot (6), and the locking block (5) is fixedly installed above the push block (4).

3. The buried gas pipeline leak detection device according to claim 2, characterized in that: Limiting holes (10) are provided inside the lower part of the tubular wire (2), the first moving rod (7) and the second moving rod (8), and a limiting rod (11) is engaged inside the limiting hole (10), and a first spring (12) is fixedly connected to the inner side of the limiting rod (11).

4. The buried gas pipeline leak detection device according to claim 1, characterized in that: The second spring (14) is fixedly connected to a support plate (15) on its outer side, and the lower part of the support plate (15) is fixedly connected to the detection pipe (1).

5. The buried gas pipeline leak detection device according to claim 4, characterized in that: A protective cover (18) is fitted on the top of the detection pipe (1), and a fixed detection instrument (20) is installed on the outside of the detection pipe (1).

6. The buried gas pipeline leak detection device according to claim 5, characterized in that: The fixed detector (20) is provided with a protective shell (21) on the outside, and the left and right sides of the outer side of the protective shell (21) are engaged with the connecting block (22), and the connecting block (22) is fixedly connected to the detection pipe (1).

7. The buried gas pipeline leak detection device according to claim 6, characterized in that: The connecting block (22) and the protective shell (21) are fixedly connected by bolts (23).

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