Pipeline leaking stoppage assembly

Abstract

The utility model discloses a pipeline leaking stoppage assembly, which relates to the technical field of pipelines, and comprises a clamping mechanism and a leaking stoppage mechanism, the leaking stoppage mechanism comprises an adjusting rod, a leaking stoppage bag and a fixing plate, the leaking stoppage bag is used for plugging a pipeline orifice, the fixing plate is used for fixing the leaking stoppage bag, and the leaking stoppage bag is fixedly connected with the fixing plate. An adjusting cavity is formed in the leaking stoppage bag, the adjusting rod is in threaded connection with the fixing plate, one end of the adjusting rod is rotationally connected with the interior of the leaking stoppage bag, and a handle is arranged at the other end of the adjusting rod; the multiple sets of clamping mechanisms are arranged in the circumferential direction of the leaking stoppage bag, each clamping mechanism comprises a first connecting rod and a clamping plate, the first end of each first connecting rod is connected with the fixing plate, and the second end of each first connecting rod is fixedly connected with the corresponding clamping plate. The sealing plugging effect of the pipeline plugging assembly can be improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline technology, and in particular to a pipeline sealing assembly. Background Technology

[0002] In industrial production and civil facilities, pipeline systems are widely used for transporting liquids, gases, and other media. However, due to long-term exposure to factors such as corrosion, mechanical vibration, temperature changes, or external impacts, pipelines are prone to leaks, including cracks, holes, or loose connections. In such cases, it is necessary to cut and repair the leaking section of the pipeline. This usually requires shutting off the flow. However, in the shut-off state, due to the pipeline's layout and differences in liquid levels, some liquid will still leak out through the cut opening. If a significant amount of liquid remains in the pipeline, ordinary pipe sealing tools often fail to achieve a satisfactory sealing effect.

[0003] Currently, a Chinese utility model patent with publication number CN219933351U and publication date of March 31, 2023, proposes a convenient pipe construction plugging mechanism, including: a clamping component, which has multiple arc-shaped side plates that can change diameter and clamp onto the inner wall of the pipe; an actuation component, which drives the arc-shaped side plates of the clamping component to change diameter; and a sealing component for plugging the pipe, which has a sealing gasket for plugging the pipe.

[0004] Regarding the aforementioned technologies, the clamping assembly is fixed to the inner wall of the pipe. However, if the clamping assembly loosens during the long-term sealing process, the contact between the sealing gasket and the pipe opening may shift, resulting in a reduced sealing effect on the pipe opening. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a pipe sealing assembly to improve the sealing and plugging effect of the pipe sealing component.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A pipe sealing assembly includes a clamping mechanism for sealing. The sealing mechanism includes an adjusting rod, a sealing bladder for sealing the pipe opening, and a fixing plate for fixing the sealing bladder. The sealing bladder is fixedly connected to the fixing plate. An adjusting cavity is provided inside the sealing bladder. The adjusting rod is threadedly connected to the fixing plate. One end of the adjusting rod is rotatably connected to the inside of the sealing bladder. The other end of the adjusting rod is provided with a handle.

[0008] Multiple clamping mechanisms are arranged around the circumference of the plugging bladder. Each clamping mechanism includes a first connecting rod and a clamping plate. The first end of the first connecting rod is connected to the fixed plate, and the second end of the first connecting rod is fixedly connected to the clamping plate.

[0009] Optionally, the clamping mechanism further includes a second connecting rod, which is fixedly connected to the first connecting rod, and the first connecting rod and the second connecting rod are set at an angle of 150°-170°.

[0010] Optionally, the clamping mechanism further includes a first locking member and a second locking member, wherein the first connecting rod is hinged to the fixed plate, the second connecting rod is hinged to the first connecting rod, and the clamping plate is fixed to the end of the second connecting rod away from the first connecting rod; the first locking member is disposed at the hinge between the first connecting rod and the fixed plate, and the second locking member is disposed at the hinge between the second connecting rod and the first connecting rod.

[0011] Optionally, the clamping mechanism further includes a clamping pad, which is fixedly mounted on the clamping plate.

[0012] Optionally, the clamping mechanism further includes a clamping assembly, which includes a clamping ring and an adjusting screw. The clamping ring is sleeved on the outer end of the clamping plate. The first end of the adjusting screw is rotatably connected to the clamping plate via a bearing. The second end of the adjusting screw is provided with an adjusting handle. The adjusting screw is threadedly connected to the clamping ring.

[0013] Optionally, the leak-sealing mechanism further includes an mounting plate and a mounting rod, one end of the mounting plate being fixedly connected to the leak-sealing bladder, the first end of the mounting rod being fixedly connected to the mounting plate, and the second end of the mounting rod being fixedly connected to the fixing plate.

[0014] Optionally, the leak-sealing bag includes a first leak-sealing part, a second leak-sealing part, and a third leak-sealing part. A first end of the first leak-sealing part is provided with a leak-sealing head. The second end of the first leak-sealing part is fixedly connected to the first end of the second leak-sealing part. The second end of the second leak-sealing part is fixedly connected to the first end of the third leak-sealing part. The second end of the third leak-sealing part is fixedly connected to the mounting plate. One end of the adjusting rod is rotatably connected to the interior of the first leak-sealing part.

[0015] Optionally, corrugated strips are provided on the outer peripheral surfaces of the first, second, and third sealing parts.

[0016] Optionally, the corrugated strip is made of rubber, and the diameters of the first, second, and third sealing portions increase sequentially.

[0017] Optionally, the first sealing part includes a fixed part rotatably connected to the adjusting rod via a bearing and an elastic adjusting part. The fixed part has a certain strength and can drive the adjusting part to contract and stretch. The second sealing part also includes a fixed part rotatably connected to the adjusting rod via a bearing and an elastic adjusting part. The third sealing part also includes a fixed part rotatably connected to the adjusting rod via a bearing and an elastic adjusting part.

[0018] This utility model has the following beneficial effects:

[0019] 1. Through modular design, combined with an adjustable plugging bladder and clamping mechanism, it can quickly fit the pipeline leak and achieve immediate sealing. The multi-segment structure and corrugated design of the plugging bladder enhance the tightness of contact with the pipeline, making it suitable for leaks of different shapes and sizes, and significantly improving emergency repair efficiency; by utilizing the contact between the plugging bladder and the inner wall of the pipeline, the possibility of secondary leakage due to displacement or deformation is reduced.

[0020] 2. The clamping mechanism, in conjunction with locking and abutment components, can be flexibly adjusted to adapt to different pipe diameters and installation environments, while ensuring stability under complex conditions such as high pressure and vibration. The introduction of clamping pads further enhances anti-slip and buffering capabilities, making the leak-sealing process more reliable; it also improves the leak-sealing effect and stability of the leak-sealing components.

[0021] 3. The reinforced design of the mounting plate and mounting rod improves the overall structural strength, while the graded expansion plugging bladder and anti-slip corrugated strip optimize sealing performance. This assembly is not only suitable for short-term emergency use but also maintains long-term stability in harsh environments such as corrosion and high temperatures, reducing the risk of secondary leakage. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0023] Figure 2 This is another perspective schematic diagram of an embodiment of the present utility model;

[0024] Figure 3 This is a cross-sectional schematic diagram of an embodiment of the present utility model;

[0025] Figure 4 This is a diagram illustrating the usage state of sealing pipe openings according to an embodiment of this utility model.

[0026] Explanation of reference numerals in the attached drawings: 100, clamping mechanism; 110, first connecting rod; 120, clamping plate; 130, second connecting rod; 140, first locking element; 150, second locking element; 160, clamping pad; 170, abutting assembly; 171, abutting ring; 172, adjusting screw; 200, leak-sealing mechanism; 210, fixing plate; 220, adjusting rod; 230, leak-sealing bladder; 231, first leak-sealing part; 232, second leak-sealing part; 233, third leak-sealing part; 234, corrugated strip; 235, fixing part; 236, adjusting part; 240, mounting plate; 250, mounting rod. Detailed Implementation

[0027] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] This utility model discloses a pipe sealing assembly. (Refer to...) Figures 1 to 4 A pipeline sealing assembly mainly includes a clamping mechanism 100 and a sealing mechanism 200. The sealing mechanism 200 includes an adjusting rod 220, a sealing bladder 230 for sealing the pipe opening, and a fixing plate 210 for fixing the sealing bladder 230. The sealing bladder 230 is fixedly connected to the fixing plate 210. The sealing bladder 230 has an adjusting cavity inside, which can be filled with hydraulic oil or high-pressure gas. The adjusting rod 220 is threadedly connected to the fixing plate 210. One end of the adjusting rod 220 is rotatably connected to the inside of the sealing bladder 230, and the other end of the adjusting rod 220 is provided with a handle. The clamping mechanism 100 is arranged in multiple sets along the circumference of the sealing bladder 230. The clamping mechanism 100 includes a first connecting rod 110 and a clamping plate 120. The first end of the first connecting rod 110 is connected to the fixing plate 210, and the second end of the first connecting rod 110 is fixedly connected to the clamping plate 120.

[0030] Reference Figure 4Multiple clamping plates 120 and the first connecting rod 110 clamp each other to the outer wall of the pipe, achieving a wrapping effect on the pipe wall and providing a certain degree of clamping support. The wrapping radius of the clamping plates 120 is slightly smaller than the outer wall radius of the pipe. After the clamping plates 120 are fixed to the pipe, a certain degree of interference fit is achieved, allowing the clamping plates 120 to fit and support the pipe wall, further improving the sealing effect and stability of the sealing component. Through the cooperation of the adjusting rod 220 and the sealing bladder 230, rotating the adjusting rod 220 pulls the sealing bladder 230 to contract along the axis of the adjusting rod 220. During the axial contraction, the radius of the sealing bladder 230 expands, allowing for rapid adjustment of the expansion degree of the sealing bladder 230, ensuring a tight fit between the sealing bladder 230 and the inner wall of the pipe, achieving rapid sealing of the pipe opening. The sealing bladder 230 can adapt to pipes of different shapes and is suitable for leaks in irregular pipes. The adjusting rod 220 has a handle at the end for easy manual operation without the need for additional tools, making it suitable for emergency repairs. The double clamping method can improve the sealing effect of the plug to a certain extent, reduce the risk of secondary leakage, and enable quick installation. It is suitable for plugging low-pressure pipelines after flow interruption.

[0031] Reference Figure 1 The clamping mechanism 100 also includes a second connecting rod 130, which is fixedly connected to the first connecting rod 110. The first connecting rod 110 and the second connecting rod 130 are set at an angle of 150°-170°, such as 155°, 160° or 165°, which can be flexibly set according to the requirements. This angle causes the angle of the second connecting rod 130 to shift inward, thereby increasing the clamping force.

[0032] Reference Figure 1 In some embodiments, the clamping mechanism 100 further includes a first locking member 140 and a second locking member 150. The first connecting rod 110 is hinged to the fixing plate 210, and the second connecting rod 130 is hinged to the first connecting rod 110. The clamping plate 120 is fixed to the end of the second connecting rod 130 away from the first connecting rod 110. The first locking member 140 is disposed at the hinge between the first connecting rod 110 and the fixing plate 210, and the second locking member 150 is disposed at the hinge between the second connecting rod 130 and the first connecting rod 110.

[0033] The first connecting rod 110 is hinged to the fixed plate 210 and the second connecting rod 130, allowing for flexible adjustment of the position of the clamping plate 120 to adapt to different pipe diameters or situations where installation space is limited. The hinge point is fixed by the first locking member 140 and the second locking member 150 to ensure that the clamping mechanism 100 is locked after adjustment and remains stable, preventing loosening due to vibration or pressure changes.

[0034] Reference Figure 1 In some embodiments, the clamping mechanism 100 further includes a clamping pad 160, which is fixedly mounted on the clamping plate 120. The clamping pad 160 (such as rubber or a polymer material) increases the friction between the clamping plate 120 and the pipe, preventing slippage and reducing damage to the pipe surface. Under high pressure or vibration environments, the clamping pad 160 can absorb some of the impact, improving the stability of the leak sealing.

[0035] Reference Figure 1 In some embodiments, the clamping mechanism 100 further includes a clamping assembly 170, which includes a clamping ring 171 and an adjusting screw 172. The clamping ring 171 is sleeved on the outer end of the clamping plate 120. The first end of the adjusting screw 172 is rotatably connected to the clamping plate 120 via a bearing, and the second end of the adjusting screw 172 is provided with an adjusting handle. The adjusting screw 172 is threadedly connected to the clamping ring 171. By rotating the adjusting screw 172, the multiple clamping plates 120 can be adjusted according to the outer diameter of the pipe to be blocked. At the same time, adjusting the multiple adjusting screws 172 makes the force on the pipe uniform in each direction, further reducing the possibility of damage to the pipe. It can also further tighten the clamping mechanism 100, further enhancing the fixing force on the pipe, which is suitable for high-pressure or large-diameter pipes.

[0036] Reference Figure 2 In some embodiments, the leak-sealing mechanism 200 further includes a mounting plate 240 and a mounting rod 250. One end of the mounting plate 240 is fixedly connected to the leak-sealing bladder 230, the first end of the mounting rod 250 is fixedly connected to the mounting plate 240, and the second end of the mounting rod 250 is fixedly connected to a fixing plate 210. The mounting plate 240 and the mounting rod 250 provide additional support to prevent the leak-sealing bladder 230 from deforming or falling off due to excessive internal pressure. The fixed connection between the mounting rod 250 and the fixing plate 210 makes the leak-sealing mechanism 200 more stable overall and reduces the difficulty of adjustment during installation.

[0037] Reference Figure 3In some embodiments, the plugging bladder 230 includes a first plugging part 231, a second plugging part 232, and a third plugging part 233. The diameters of the first plugging part 231, the second plugging part 232, and the third plugging part 233 increase sequentially, and their elastic strengths also increase sequentially. When tightened, the first plugging part 231 deforms preferentially over the second plugging part 232, and the second plugging part 232 deforms preferentially over the third plugging part 233. A plugging head is provided at the first end of the first plugging part 231. The second end of the first plugging part 231 is fixedly connected to the first end of the second plugging part 232. The second end of the second plugging part 232 is fixedly connected to the first end of the third plugging part 233. The second end of the third plugging part 233 is fixedly connected to the mounting plate 240. One end of the adjusting rod 220 is rotatably connected to the inside of the first plugging part 231.

[0038] The first sealing part 231 includes a fixed part 235 rotatably connected to the adjusting rod 220 via a bearing and an elastic adjusting part 236. The fixed part 235 has a certain strength and can drive the adjusting part 236 to contract and stretch. The second sealing part 232 also includes a fixed part 235 rotatably connected to the adjusting rod 220 via a bearing and an elastic adjusting part 236. The third sealing part 233 also includes a fixed part 235 rotatably connected to the adjusting rod 220 via a bearing and an elastic adjusting part 236. The third sealing part 233 is assembled in the order of fixed part 235, sealing part, and fixed part 235.

[0039] The diameters of the first sealing section 231, the second sealing section 232, and the third sealing section 233 increase progressively, gradually adapting to leak points of different sizes and improving the sealing effect. The sealing head is easy to insert into the pipe, while the larger diameter sealing section can cover the surrounding area, making it suitable for complex leaks and expanding the applicability of the device.

[0040] Reference Figure 3 In some embodiments, corrugated strips 234 are provided on the outer peripheral surfaces of the first sealing portion 231, the second sealing portion 232, and the third sealing portion 233. The corrugated strips 234 increase the contact area between the sealing bladder 230 and the pipe surface, improving sealing performance, and are particularly suitable for rough or uneven pipes. The corrugated structure prevents the sealing bladder 230 from shifting under pressure or vibration, ensuring long-term stability.

[0041] The implementation principle of a pipe sealing assembly according to an embodiment of this utility model is as follows:

[0042] The clamping mechanism 100, combined with the locking device and the clamping assembly 170, can flexibly adapt to various pipe diameters and remain stable under complex working conditions; the reinforced support structure and buffer design improve overall durability. This technology effectively solves the problems of poor adaptability and complex operation of traditional leak sealing methods, and has the advantages of quick installation, reliable sealing, and wide applicability. It is particularly suitable for emergency pipeline repair and maintenance operations in the petroleum, chemical and other fields, significantly improving the efficiency and reliability of pipeline leak sealing.

[0043] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A pipe plugging assembly, characterized by: The system includes a clamping mechanism (100) and a leak-sealing mechanism (200). The leak-sealing mechanism (200) includes an adjusting rod (220), a leak-sealing bladder (230) for sealing the pipe opening, and a fixing plate (210) for fixing the leak-sealing bladder (230). The leak-sealing bladder (230) is fixedly connected to the fixing plate (210). The leak-sealing bladder (230) has an adjusting cavity inside. The adjusting rod (220) is threadedly connected to the fixing plate (210). One end of the adjusting rod (220) is rotatably connected to the inside of the leak-sealing bladder (230). The other end of the adjusting rod (220) is provided with a handle. Multiple clamping mechanisms (100) are arranged around the circumference of the plugging bladder (230). The clamping mechanism (100) includes a first connecting rod (110) and a clamping plate (120). The first end of the first connecting rod (110) is connected to the fixing plate (210), and the second end of the first connecting rod (110) is fixedly connected to the clamping plate (120).

2. The pipe patching assembly of claim 1, wherein: The clamping mechanism (100) further includes a second connecting rod (130), which is fixedly connected to the first connecting rod (110), and the first connecting rod (110) and the second connecting rod (130) are set at 150°-170°.

3. The pipe patch assembly of claim 2, wherein: The clamping mechanism (100) further includes a first locking member (140) and a second locking member (150). The first connecting rod (110) is hinged to the fixed plate (210), and the second connecting rod (130) is hinged to the first connecting rod (110). The clamping plate (120) is fixed at the end of the second connecting rod (130) away from the first connecting rod (110). The first locking member (140) is disposed at the hinge between the first connecting rod (110) and the fixed plate (210), and the second locking member (150) is disposed at the hinge between the second connecting rod (130) and the first connecting rod (110).

4. The pipe patch assembly of claim 3, wherein: The clamping mechanism (100) further includes a clamping pad (160), which is fixedly mounted on the clamping plate (120).

5. The pipe patching assembly of claim 4, wherein: The clamping mechanism (100) further includes a clamping assembly (170), which includes a clamping ring (171) and an adjusting screw (172). The clamping ring (171) is sleeved on the outer end of the clamping plate (120). The first end of the adjusting screw (172) is rotatably connected to the clamping plate (120) through a bearing. The second end of the adjusting screw (172) is provided with an adjusting handle. The adjusting screw (172) is threadedly connected to the clamping ring (171).

6. The pipe patch assembly of claim 1, wherein: The leak-sealing mechanism (200) further includes an mounting plate (240) and a mounting rod (250). One end of the mounting plate (240) is fixedly connected to the leak-sealing bladder (230), the first end of the mounting rod (250) is fixedly connected to the mounting plate (240), and the second end of the mounting rod (250) is fixedly connected to the fixing plate (210).

7. The pipe patching assembly of claim 6, wherein: The leak-sealing bladder (230) includes a first leak-sealing part (231), a second leak-sealing part (232), and a third leak-sealing part (233). The first leak-sealing part (231) has a leak-sealing head at its first end. The second end of the first leak-sealing part (231) is fixedly connected to the first end of the second leak-sealing part (232). The second end of the second leak-sealing part (232) is fixedly connected to the first end of the third leak-sealing part (233). The second end of the third leak-sealing part (233) is fixedly connected to the mounting plate (240). One end of the adjusting rod (220) is rotatably connected to the inside of the first leak-sealing part (231).

8. The pipe patching assembly of claim 7, wherein: The outer peripheral surfaces of the first sealing part (231), the second sealing part (232) and the third sealing part (233) are all provided with corrugated strips (234).

9. The pipe patching assembly of claim 8, wherein: The corrugated strip (234) is made of rubber, and the diameters of the first plugging part (231), the second plugging part (232) and the third plugging part (233) increase sequentially.

10. The pipe patching assembly of claim 7, wherein: The first sealing part (231) includes a fixed part (235) rotatably connected to the adjusting rod (220) via a bearing and an elastic adjusting part (236). The fixed part (235) has a certain strength and can drive the adjusting part (236) to contract and stretch. The second sealing part (232) also includes a fixed part (235) rotatably connected to the adjusting rod (220) via a bearing and an elastic adjusting part (236). The third sealing part (233) also includes a fixed part (235) rotatably connected to the adjusting rod (220) via a bearing and an elastic adjusting part (236).

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