Straddle type leaking stoppage clamp

By designing a straddle-type leak-sealing clamp, the problem of unsuitable sealing devices in emergency repairs of urban gas pipelines was solved, enabling fast, stable, and simple sealing operations, thus improving repair efficiency and safety.

CN121025291APending Publication Date: 2025-11-28CHINA PETROLEUM PIPELINE ENG CO LTD +1
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Patent Information

Application Number
CN202410668024.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-05-28
Publication Date
2025-11-28

AI Technical Summary

Technical Problem

Existing technologies lack rapid repair tools and equipment suitable for urban low-pressure gas pipelines. Existing temporary leak sealing methods are complex to install or lack versatility, affecting subsequent maintenance and are not suitable for the rapid sealing needs of urban gas pipelines.

Method used

A straddle-type leak-sealing clamp was designed, including a sealing device and a tensioning device. The installation process is simplified through threaded connection and detachable design, which can be adapted to different pipe shapes and sizes. Adjustable sealing elements and steel wire rope fixation are used to ensure sealing effect.

Benefits of technology

It enables fast, stable, and simple sealing operations, is highly adaptable, reduces installation time, protects the anti-corrosion layer, facilitates subsequent maintenance, and improves emergency repair efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of gas pipeline first-aid repair, in particular to a straddle type leaking stoppage clamp to solve the problem that an existing plugging device is not suitable for urban gas pipeline first-aid repair. The clamp comprises a plugging device and a tensioning device, the tensioning device is detachably connected with the pipeline and the plugging device. The plugging device comprises a plug, a first ejector rod and a sealing element; the plug is in threaded connection with the first ejector rod; and the plug is detachably connected with the sealing element. Before plugging operation is carried out, the tensioning device and the plugging device are assembled, the tensioning device only needs to be fixed near a leakage point firstly, then the position of the plugging device is adjusted, the sealing element is made to directly face the leakage point and press the sealing element downwards, and plugging of the leakage point is achieved in the shortest time. According to the scheme, higher installation stability, adaptability and sealing effect are achieved, urban gas pipeline leakage accidents can be effectively dealt with, and the first-aid repair efficiency and safety are improved.
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Description

Technical Field

[0001] This invention relates to the field of gas pipeline emergency repair technology, and in particular to a straddle-type leak-sealing clamp. Background Technology

[0002] As urban gas pipelines age, corrosion and perforation become increasingly common. When leaks occur, immediate temporary sealing is crucial to prevent further pollution and economic losses before further repairs. While domestic research focuses on emergency repair techniques and tools for high-pressure long-distance pipelines, there are no suitable specialized tools for rapid repair of low-pressure urban gas pipeline leaks. Existing temporary sealing methods primarily include U-clamp sealing, clamp sealing, bundling sealing, pin sealing, and wooden wedge sealing. These methods generally suffer from drawbacks such as complex installation, limited versatility, and inconvenience for subsequent maintenance. Summary of the Invention

[0003] This invention provides a straddle-type leak-sealing clamp to alleviate the problem that existing sealing devices are not suitable for emergency repairs of urban gas pipelines.

[0004] To alleviate the above-mentioned technical problems, the technical solution provided by the present invention is as follows:

[0005] This invention provides a straddle-type leak-stopping clamp, including a sealing device and a tensioning device;

[0006] The tensioning device is detachably connected to both the pipe and the sealing device;

[0007] The sealing device includes a plug, a first push rod, and a sealing element;

[0008] The plug is threaded to the first push rod;

[0009] The plug and sealing element have a detachable connection.

[0010] Furthermore,

[0011] The tensioning device includes a support, a base, a slider, a second push rod, and a crossbeam;

[0012] Two supports are respectively installed on both sides of the base;

[0013] The crossbeam is inserted into the slot of the support and the base;

[0014] The second push rod is located on the upper part of the base;

[0015] The slider is threadedly connected to the second push rod.

[0016] Furthermore,

[0017] A connecting rod is provided between the crossbeam and the first top rod;

[0018] The crossbeam and the connecting rod are fixedly connected by screws;

[0019] The first push rod is threaded;

[0020] The first push rod is connected to the crossbeam by a thread.

[0021] Furthermore,

[0022] The slider has openings on both sides that are parallel to the direction of the second push rod.

[0023] Furthermore,

[0024] The steel wire rope is wrapped around the outer wall of the pipe and passes through the opening.

[0025] Furthermore,

[0026] The wire rope is locked to the slider and the crossbeam to the support with screws.

[0027] Furthermore,

[0028] The size of the sealing element is determined based on the size of the leak point in the pipeline.

[0029] The beneficial effects of this invention are analyzed as follows:

[0030] Before the leak sealing operation, the tensioning device and the sealing device have already been assembled. Simply fix the tensioning device near the leak point first, then adjust the position of the sealing device so that the sealing element is directly facing the leak point and press the sealing element downwards to seal the leak point in the shortest possible time. Furthermore, the tensioning device is far away from the leak point, so it does not affect the peeling of the anti-corrosion layer near the leak point after sealing, thus speeding up the repair progress. This method has the advantages of simple structure, convenient installation and operation, strong adaptability, and fast repair speed. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present invention, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 This is a cross-sectional schematic diagram of the sealing device;

[0034] Figure 3 This is a schematic diagram showing the connection between the slider and the base;

[0035] Figure 4 This is a schematic diagram of the support structure;

[0036] Figure 5 This is a schematic diagram showing the connection between the beam and the connecting rod.

[0037] icon:

[0038] 100 - Sealing device; 110 - Plug; 120 - First push rod; 130 - Sealing element;

[0039] 200-Tensioning device; 210-Support; 220-Base; 230-Slider; 231-Opening; 240-Second push rod; 250-Crossbeam; 260-Connecting rod;

[0040] 300-pipeline;

[0041] 400 - Steel wire rope. Detailed Implementation

[0042] Existing temporary leak sealing methods mainly include U-shaped clamps, clamps, bundling, pins, and wooden wedges. These methods generally have drawbacks such as complex installation, limited versatility, and inconvenience for subsequent maintenance. There are no suitable dedicated rapid repair tools for low-pressure pipeline leaks, such as those in urban gas pipelines.

[0043] In view of this, such as Figures 1 to 5 As shown, this solution provides a straddle-type leak-sealing clamp to alleviate the above-mentioned problems.

[0044] This clamp includes a sealing device 100 and a tensioning device 200;

[0045] The tensioning device 200 is detachably connected to the pipe 300 and the sealing device 100 respectively;

[0046] The sealing device 100 includes a plug 110, a first push rod 120, and a sealing element 130;

[0047] The plug 110 is threadedly connected to the first push rod 120;

[0048] The plug 110 is detachably connected to the sealing element 130.

[0049] Before the leak sealing operation, the tensioning device 200 and the sealing device 100 have been assembled. Simply fix the tensioning device 200 near the leak point, then adjust the position of the sealing device 100 so that the sealing element 130 is facing the leak point and is pressed down to seal the leak point in the shortest possible time. The tensioning device is far away from the leak point, so it does not affect the peeling of the anti-corrosion layer near the leak point after sealing, thus speeding up the repair progress. This method has the advantages of simple structure, convenient installation and operation, strong adaptability, and fast repair speed.

[0050] like Figures 3 to 5 As shown, the tensioning device 200 includes a support 210, a base 220, a slider 230, a second push rod 240, and a crossbeam 250;

[0051] Two supports 210 are respectively disposed on both sides of the base 220;

[0052] The crossbeam 250 is inserted into the slot of the support 210 and the base 220;

[0053] The second push rod 240 is located on the upper part of the base 220;

[0054] The slider 230 is threadedly connected to the second push rod 240.

[0055] Preferably, the bottom of the support 210 has a certain curvature, so that the support 210 can fit more tightly against the outer wall of the pipe 300 and avoid loosening.

[0056] like Figure 5 As shown, a connecting rod 260 is provided between the crossbeam 250 and the first top rod 120;

[0057] The crossbeam 250 and the connecting rod 260 are fixedly connected by screws;

[0058] The first push rod 120 is threaded;

[0059] The first push rod 120 is connected to the crossbeam 250 by a thread.

[0060] Preferably, when dealing with special parts, such as elbows, welds, and other non-straight pipes 300, the angle between the sealing device 100 and the tensioning device 200 can be adjusted by the connecting rod 260 to make the sealing device 100 fit tightly against the leak point. Specifically, the method is to first move the crossbeam 250 so that the crossbeam 250 extends a sufficient distance from the support 210 towards the leak point, then adjust the connecting rod 260 so that the sealing device 100 is directly facing the leak point, and finally rotate the first push rod 120 to make the sealing element 130 fit tightly against the leak point.

[0061] like Figure 1 and Figure 3As shown, the slider 230 has openings 231 on both sides that are parallel to the direction of the second push rod 240;

[0062] The steel wire rope 400 is wrapped around the outer wall of the pipe 300 and passes through the opening 231;

[0063] The wire rope 400 and the slider 230, as well as the crossbeam 250 and the support 210, are all locked together with screws.

[0064] Specifically, after the wire rope 400 is fixed by screws, rotating the slider 230 upwards can tighten the wire rope 400 and make the tensioning device 200 secure to the surface of the pipe 300.

[0065] Preferably, the size of the sealing element 130 is set according to the size of the leakage point of the pipeline 300, and the sealing element 130 is a detachable connection, so that the appropriate material can be selected according to different working conditions to improve the sealing effect.

[0066] This solution has at least the following beneficial effects:

[0067] 1. Simplified installation process: The combined use of the sealing device 100 and the tensioning device 200 simplifies the steps of the leak sealing operation, making the installation process faster and more convenient.

[0068] 2. Improved installation stability: The tensioning device 200 can effectively fix the pipe surface, improving the stability and reliability of the installation and avoiding failure problems caused by loosening.

[0069] 3. High adaptability: The positions of the crossbeam 250 and connecting rod 260 can be adjusted according to the location of the pipeline leak and the shape of the pipeline, so that the sealing device 100 fits tightly against the leak point. It has strong adaptability and is suitable for pipelines of different shapes and sizes.

[0070] 4. Improved sealing effect: The size of the sealing element 130 can be adjusted according to the size of the leakage point, and the detachable connection makes it easy to select the appropriate material according to different working conditions, thereby improving the sealing effect and reducing the risk of leakage.

[0071] 5. Easy to operate: The design of slider 230 and wire rope 400 allows for easy adjustment of the tightness of tensioning device 200, making operation simpler and improving ease of use.

[0072] 6. Facilitates subsequent maintenance: Compared with existing technologies, the tensioning device is 200 meters away from the leak point. After the sealing is completed, it does not affect the peeling of the anti-corrosion layer near the leak point, which speeds up the repair progress and achieves faster and safer repair results.

[0073] In summary, compared with existing temporary leak sealing methods, this solution has higher installation stability, adaptability and sealing effect, and can effectively deal with urban gas pipeline leakage accidents, improving repair efficiency and safety.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A straddle-type leak-sealing clamp, characterized in that: Includes a sealing device (100) and a tensioning device (200); The tensioning device (200) is detachably connected to the pipe (300) and the sealing device (100) respectively; The sealing device (100) includes a plug (110), a first push rod (120), and a sealing element (130); The plug (110) is threadedly connected to the first push rod (120); The plug (110) is detachably connected to the sealing element (130).

2. The straddle-type leak-sealing clamp according to claim 1, characterized in that: The tensioning device (200) includes a support (210), a base (220), a slider (230), a second push rod (240), and a crossbeam (250); The two supports (210) are respectively disposed on both sides of the base (220); The crossbeam (250) is inserted into the slot of the support (210) and the base (220); The second push rod (240) is disposed on the upper part of the base (220); The slider (230) is threadedly connected to the second push rod (240).

3. The straddle-type leak-sealing clamp according to claim 2, characterized in that: A connecting rod (260) is provided between the crossbeam (250) and the first top rod (120); The crossbeam (250) and the connecting rod (260) are fixedly connected by screws; The first push rod (120) is threaded; The first push rod (120) is connected to the crossbeam (250) by a thread.

4. The straddle-type leak-sealing clamp according to claim 3, characterized in that: The slider (230) has openings (231) on both sides that are parallel to the direction of the second push rod (240).

5. The straddle-type leak-sealing clamp according to claim 4, characterized in that: The wire rope (400) is wound around the outer wall of the pipe (300) and passes through the opening (231).

6. The straddle-type leak-sealing clamp according to claim 5, characterized in that: The wire rope (400) and the slider (230) are locked together by screws, as are the crossbeam (250) and the support (210).

7. The straddle-type leak-sealing clamp according to claim 6, characterized in that: The dimensions of the sealing element (130) are set according to the dimensions of the leak point of the pipe (300).