A quick-mounting clamp for online replacement of a pipeline valve

Abstract

The utility model discloses a kind of fast mounting clamps of pipeline valve online replacement, belong to pipeline maintenance equipment technical field, including connecting cylinder, clamping plate installed in its lower end, fixed component, guide plate and sealing assembly, the clamping plate is symmetrically constituted by upper and lower clamping blocks, the fixed component is moved by rotating bolt, first and second fixed plate respectively connected upper and lower clamping blocks are driven to each other, to drive clamping plate synchronous clamping pipeline, in clamping process, sealing assembly fixed in the inboard of clamping plate is also synchronous compacted on the surface of pipeline to form reliable sealing, the guide plate is connected in clamping plate one side, for guiding valve accurate replacement.The utility model highly integrates clamping, sealing and guiding function, can be completed installation by single bolt operation, simplifies operation step, improves the efficiency of online replacement operation, and its sealing structure is reliable, clamping is stable, effectively guarantees the security of operating process.

Description

Technical Field

[0001] This utility model relates to the field of pipeline maintenance equipment technology, and in particular to a quick-installation clamp for online replacement of pipeline valves. Background Technology

[0002] As a crucial component of modern industrial and public infrastructure, the stable operation of pipelines is of paramount importance. Valves are core control components in pipelines, used to open, close, and regulate fluid flow. However, with prolonged operation, valves inevitably experience wear, corrosion, or malfunction, requiring timely repair or replacement to ensure the safety of the entire pipeline network.

[0003] In many applications, such as urban water supply networks, fire protection, or industrial process pipelines for continuous production, completely stopping the flow of media to replace valves often results in significant economic losses or serious social impacts. Therefore, the technology to replace valves online or under pressure without interrupting pipeline operation is particularly important, and this has always been a technical challenge and a key area of ​​development in pipeline maintenance.

[0004] Existing online replacement operations typically require various auxiliary tools and complex procedures. Operators first need to install temporary plugging or clamping devices on both sides of the valve to be replaced to create a safe working space isolated from the high-pressure fluid inside the pipeline. However, currently used clamps are generally cumbersome and inefficient to install. Their clamping and sealing functions are often implemented separately, requiring operators to adjust and fix them step by step. For example, after initial positioning of the clamp, multiple bolts distributed around the flange need to be tightened one by one to achieve the final seal. The entire process is time-consuming, increasing the labor intensity of operators and prolonging the time the pipeline is exposed to risk.

[0005] Therefore, this utility model proposes a quick-installation clamp for online replacement of pipeline valves to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a quick-installation clamp for online replacement of pipeline valves, aiming to improve the problems of cumbersome installation and operation, low efficiency, and insufficient overall reliability caused by the step-by-step implementation of clamping and sealing functions in the existing technology.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a quick-installation clamp for online replacement of pipeline valves, comprising: a connecting cylinder and a clamping plate, wherein the clamping plate is installed at the lower opening of the connecting cylinder, and the clamping plate comprises an upper clamping block and a lower clamping block arranged symmetrically to each other, and a water pipe is provided between the two clamping plates;

[0008] Also includes:

[0009] The device includes a fixing assembly, a guide plate, and a sealing assembly. The fixing assembly includes a first fixing plate, a second fixing plate, and a bolt. The bolt is threaded through the first fixing plate and its end abuts against the second fixing plate. The first fixing plate and the second fixing plate are fixedly connected to the upper clamping block and the lower clamping block, respectively. The sealing assembly is fixed to the side of the clamping plate facing the pipe to be clamped. The guide plate is connected to one side of the clamping plate.

[0010] Preferably, the fixing component further includes a limiting member, which is fixedly connected to the first fixing plate and extends toward the second fixing plate to provide guidance and limiting during clamping.

[0011] Preferably, the sealing assembly includes a sealing element, the body of which is fixedly connected to the clamping plate, and the edge of the sealing element is slidably fitted against the inner wall of the connecting cylinder.

[0012] Preferably, the sealing assembly further includes a sponge component, which is fixed to the side of the sealing component facing the pipe to be clamped, for filling minor unevenness on the surface of the pipe.

[0013] Preferably, the sealing assembly further includes a rubber strip fixed to the seal and located on the outside of the sponge member to provide a stronger flow-blocking seal.

[0014] Preferably, the guide plate is a plate-shaped structure with a preset guiding arc, which is used to provide a smooth guiding path for the replacement of new valves.

[0015] Preferably, the head of the bolt is provided with an internal hexagonal hole for tool driving, so as to facilitate quick installation and removal using standard tools.

[0016] Preferably, the inner surfaces of the upper clamping block and the lower clamping block are provided with arc-shaped clamping surfaces that are adapted to the outer diameter of the pipe to be clamped, so as to increase the clamping area and achieve a more uniform and stable clamping effect.

[0017] This utility model has the following beneficial effects:

[0018] 1. In this utility model, by setting a fixing component driven by bolts, the fixing component can simultaneously drive the clamping plate to clamp the pipe and press the sealing component onto the pipe surface, which solves the problems of cumbersome, multi-step, and time-consuming pipe clamp installation operations in the prior art, and achieves the effect of integrating clamping and sealing actions, simplifying the installation process, and significantly improving online operation efficiency.

[0019] This invention solves the problem of poor sealing and leakage risks caused by traditional single sealing components being unable to adapt to uneven pipe surfaces by setting a combined sealing structure consisting of an inner sponge and an outer rubber strip on the sealing assembly. It achieves a double reliable seal even on uneven surfaces by using the sponge to fill micro gaps and the rubber strip to provide high pressure flow resistance, thus greatly improving the safety of operation. Attached Figure Description

[0020] Figure 1 A perspective view of a quick-installation clamp for online replacement of pipeline valves proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the fixing component structure of a quick-release clamp for online replacement of pipeline valves proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the limiting component structure of a quick-release clamp for online replacement of pipeline valves proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the sealing assembly structure of a quick-installation clamp for online replacement of pipeline valves proposed in this utility model.

[0024] Legend:

[0025] 1. Water pipe; 2. Connecting cylinder; 3. Clamping plate; 4. Fixing assembly; 401. Bolt; 402. Limiting component; 403. First fixing plate; 404. Second fixing plate; 5. Guide plate; 6. Sealing assembly; 601. Sealing component; 602. Rubber strip; 603. Sponge component. Detailed Implementation

[0026] 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.

[0027] Reference Figure 1 - Figure 4 This utility model provides a quick-release clamp for online replacement of pipeline valves, which aims to solve the problem that the existing technology lacks a dedicated clamp that integrates quick clamping, reliable sealing and replacement guidance when replacing pipeline valves online, resulting in complicated operation, low efficiency and leakage risk.

[0028] Specifically, it includes a connecting cylinder 2 and a clamping plate 3 installed at the lower opening of the connecting cylinder 2. The connecting cylinder 2 provides space for subsequent online operations. The clamping plate 3 includes an upper clamping block and a lower clamping block arranged symmetrically to each other. The upper clamping block and the lower clamping block work together to clamp the water pipe 1.

[0029] It also includes a fixing component 4, a guide plate 5, and a sealing component 6, and the fixing component 4, the guide plate 5, and the sealing component 6 form a specific structural fit and connection relationship with the aforementioned connecting cylinder 2 and clamping plate 3.

[0030] The fixing component 4 includes a first fixing plate 403, a second fixing plate 404, and a bolt 401. The bolt 401 is threaded through the first fixing plate 403 and its end abuts against the second fixing plate 404. The distance between the first fixing plate 403 and the second fixing plate 404 can be adjusted by rotating the bolt 401. The first fixing plate 403 and the second fixing plate 404 are fixedly connected to the upper clamping block and the lower clamping block of the clamping plate 3, respectively, so as to transmit the driving force of the bolt 401 to the upper clamping block and the lower clamping block, thereby realizing the clamping or loosening action of the water pipe 1. The sealing component 6 is fixed to the side of the clamping plate 3 facing the pipe to be clamped. While the clamping plate 3 clamps the water pipe 1, the sealing component 6 is simultaneously pressed against the surface of the water pipe 1 to form a seal. The guide plate 5 is connected to one side of the clamping plate 3. The guide plate 5 provides path guidance for the subsequent valve replacement operation.

[0031] To further improve the stability and uniformity of the clamping process and prevent excessive force on one side or clamping deviation, the fixing assembly 4 also includes a limiting member 402. The limiting member 402 is fixedly connected to the first fixing plate 403 and extends toward the second fixing plate 404. When the rotating bolt 401 drives the first fixing plate 403 and the second fixing plate 404 to move relative to each other, the limiting member 402 can provide guidance and limiting function to ensure that the upper clamping block and the lower clamping block apply clamping force smoothly and synchronously, thereby achieving a more stable and reliable fast fixing.

[0032] To ensure the sealing integrity of the internal space of the clamping body during the movement of the clamping plate 3, the sealing assembly 6 includes a sealing element 601. The main body of the sealing element 601 is fixedly connected to the clamping plate 3, and the edge of the sealing element 601 slides against the inner wall of the connecting cylinder 2, so that when the clamping plate 3 moves up and down, the edge of the sealing element 601 is always in close contact with the inner wall of the connecting cylinder 2, forming a dynamic seal, which effectively prevents the fluid inside the connecting cylinder 2 from leaking from the mating gap between the clamping plate 3 and the connecting cylinder 2.

[0033] To enhance adaptability to uneven pipe surfaces and improve initial sealing performance, the sealing assembly 6 also includes a sponge component 603. The sponge component 603 is fixed to the side of the sealing component 601 facing the pipe to be clamped. The sponge component 603 has good compression resilience and filling properties. When the clamping plate 3 is clamped, the sponge component 603 can first contact the pipe surface and fill the small uneven areas such as pits, welds, or rust on the outer wall of the pipe, forming the first flexible pre-seal, creating favorable conditions for the subsequent main seal.

[0034] To provide stronger flow resistance and a second layer of sealing protection to cope with higher pressures in the pipeline, the sealing assembly 6 also includes a rubber strip 602. The rubber strip 602 is fixed to the sealing element 601 and located outside the sponge element 603. The rubber strip 602 is made of a material with higher density and greater pressure resistance than the sponge element 603. Under the action of clamping force, the rubber strip 602 undergoes elastic deformation, generating greater sealing surface pressure and forming a robust main seal, effectively preventing water leakage from the pipeline. The combination of the sponge element 603 and the rubber strip 602 constitutes a layered sealing structure from the inside out, taking into account both surface adaptability and pressure resistance, and greatly improving the safety of online operation.

[0035] To provide precise positioning and smooth guidance during valve replacement and reduce operational difficulty, the guide plate 5 is a plate-shaped structure with a preset guiding arc. After the old valve is removed, this preset arc can serve as a precise track to guide the port of the new valve to smoothly slide into the docking position of the pipeline, avoiding jamming or misalignment within the limited space of the connecting cylinder 2, and significantly improving the success rate and efficiency of installation.

[0036] To facilitate quick operation using common tools and to apply sufficient clamping torque, the head of bolt 401 is provided with an internal hexagonal hole for tool drive. Operators can use a standard internal hexagonal wrench or pneumatic tool to quickly rotate bolt 401, enabling rapid loading and unloading of the clamp, which meets the high efficiency requirements of on-site operations.

[0037] In order to increase the clamping contact area and distribute the clamping force more evenly on the pipe surface, and prevent damage to the pipe due to stress concentration, the inner surfaces of the upper and lower clamping blocks of the clamping plate 3 are provided with arc-shaped clamping surfaces that are adapted to the outer diameter of the pipe to be clamped. The radius of curvature of the arc-shaped clamping surface matches the outer diameter of the water pipe 1 to be clamped, so that the contact area changes from line contact or point contact to surface contact during clamping. This not only makes the clamping more stable, but also effectively protects the pipe surface from being crushed or deformed.

[0038] Working principle: During operation, first open the entire clamp, align it and put it on the water pipe section 1 where the old valve to be replaced is located, ensuring that the old valve is inside the connecting cylinder 2.

[0039] Subsequently, the bolts 401 of the fixing assembly 4 are rotated. The rotational force of the bolts 401 will drive the first fixing plate 403 and the second fixing plate 404 to move closer to each other, thereby causing the upper and lower clamping plates 3 to clamp the two sides of the water pipe 1. During this process, the limiting piece 402 fixed on the first fixing plate 403 will ensure that the clamping force on both sides is uniform, preventing the pipe from shifting or the clamping from being unstable due to excessive force on one side, thus achieving fast and firm fixing.

[0040] As the clamping plate 3 clamps downwards, its bottom sealing component 6 is simultaneously pressed against the surface of the water pipe 1. The sealing element 601 forms a tight fit with the connecting cylinder 2, while the sponge element 603 at its bottom fills in the minor unevenness on the pipe surface, forming the first flexible seal. The outer rubber strip 602 further deforms under pressure, serving as a second layer of flow resistance and enhancing the seal. At this point, the working area is completely sealed and isolated, creating a leak-free safety condition for subsequent online operations.

[0041] After sealing is completed, workers can then use the pre-drilled opening in the connecting sleeve 2 to cut the pipe and remove old valves, performing other "processing" operations. After removing the old valve, the new valve can be smoothly pushed in and installed using the guide plate 5. Throughout the replacement process, the water flow inside the pipe is completely blocked and contained by the sealing assembly 6 and the connecting sleeve 2, preventing leakage. After the replacement is completed, rotating the bolt 401 in the reverse direction will loosen the clamp and remove it from the pipe.

Claims

1. A quick-release clamp for online replacement of pipeline valves, comprising: A connecting cylinder (2) and a clamping plate (3) are provided. The clamping plate (3) is installed at the lower opening of the connecting cylinder (2). The clamping plate (3) includes an upper clamping block and a lower clamping block arranged symmetrically to each other. A water pipe (1) is provided between the two clamping plates (3). Its characteristic is that it further includes: The fixing assembly (4), guide plate (5), and sealing assembly (6) are provided. The fixing assembly (4) includes a first fixing plate (403), a second fixing plate (404), and a bolt (401). The bolt (401) is threaded through the first fixing plate (403) and its end abuts against the second fixing plate (404). The first fixing plate (403) and the second fixing plate (404) are fixedly connected to the upper clamping block and the lower clamping block, respectively. The sealing assembly (6) is fixed to the side of the clamping plate (3) facing the pipe to be clamped. The guide plate (5) is connected to one side of the clamping plate (3).

2. The quick-release clamp for online replacement of pipeline valves according to claim 1, characterized in that, The fixing component (4) further includes a limiting member (402), which is fixedly connected to the first fixing plate (403) and extends toward the second fixing plate (404).

3. The quick-assembly clamp for online replacement of pipeline valves according to claim 1, characterized in that, The sealing assembly (6) includes a sealing element (601), the main body of which is fixedly connected to the clamp (3), and the edge of which slides against the inner wall of the connecting cylinder (2).

4. The quick-release clamp for online replacement of pipeline valves according to claim 3, characterized in that, The sealing assembly (6) further includes a sponge (603), which is fixed to the side of the sealing assembly (601) facing the pipe to be clamped.

5. A quick-release clamp for online replacement of pipeline valves according to claim 4, characterized in that, The sealing assembly (6) further includes a rubber strip (602), which is fixed to the sealing member (601) and located on the outside of the sponge member (603).

6. The quick-release clamp for online replacement of pipeline valves according to claim 1, characterized in that, The guide plate (5) is a plate-shaped structure with a preset guiding arc.

7. The quick-assembly clamp for online replacement of pipeline valves according to claim 1, characterized in that, The head of the bolt (401) is provided with an internal hexagonal hole for tool driving.

8. A quick-release clamp for online replacement of pipeline valves according to claim 1, characterized in that, The inner surfaces of both the upper and lower clamping blocks are provided with arc-shaped clamping surfaces that are adapted to the outer diameter of the pipe to be clamped.

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