A pipeline leak stoppage pressurization auxiliary device

Abstract

The utility model relates to a kind of pipeline leak-stopping pressurization auxiliary devices, including steel wire rope, pressurizing plate, first U-shaped plate, second U-shaped plate, third U-shaped plate and screw rod, the first U-shaped plate and second U-shaped plate are respectively fixed in the both ends of the steel wire rope, and the connecting point of first U-shaped plate and second U-shaped plate respectively with steel wire rope corresponds in the one end of its U-shaped groove symmetry center line, first recess is oppositely provided on the two side walls of second U-shaped plate opening end;The two side walls of third U-shaped plate opening end are respectively hinged with the corresponding two side walls of the one end of first U-shaped plate away from steel wire rope, coaxial first positioning hole is arranged on the two side walls of third U-shaped plate, coaxial second positioning hole is oppositely provided on the two side walls of first U-shaped plate, and the second positioning hole can be moved to coaxial with the first positioning hole.The utility model improves the practicability of auxiliary device.

Description

Technical Field

[0001] This utility model relates to the field of pipeline leak sealing, specifically a pipeline leak sealing pressurization auxiliary device. Background Technology

[0002] Large hydroelectric power stations contain oil and water pipelines of various materials and diameters. These pipelines operate under harsh environments for extended periods, making them prone to weld failure, pipe wall perforation, and leakage. In industrial pipeline maintenance, pressurizing to seal leaks is the most direct and effective repair method, traditionally relying on clamps such as split clamps for sealing. However, existing split clamps have significant limitations: They are cumbersome and time-consuming to operate; their fixed clamp structure requires manual tightening of bolts one by one, the bolt stroke is long, and the operation process is complex, making it difficult to meet the time requirements of emergency repairs. They also have poor adaptability; their rigid design is insufficient for different pipe diameters, often requiring replacement with specific models, thus limiting on-site construction flexibility. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a pipeline leak-sealing and pressurization auxiliary device to solve the problems of cumbersome operation and poor adaptability of existing half-clamp water-sealing devices.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A pipeline leak-sealing and pressurizing auxiliary device, comprising a steel wire rope, a pressure plate, a first U-shaped plate, a second U-shaped plate, a third U-shaped plate, and a screw. The first U-shaped plate and the second U-shaped plate are respectively fixed to both ends of the steel wire rope, and the connection points of the first U-shaped plate and the steel wire rope correspond to one end of the symmetrical center line of their U-shaped grooves. The two side walls of the open end of the second U-shaped plate are provided with first grooves facing each other. The two side walls of the open end of the third U-shaped plate are respectively hinged to the corresponding side walls of the first U-shaped plate at the end away from the steel wire rope. The two side walls of the third U-shaped plate are provided with coaxial first positioning holes, and the two side walls of the first U-shaped plate are provided with coaxial second positioning holes facing each other. The second positioning holes can be moved to be coaxial with the first positioning holes. A connecting rod is rotatably provided inside the third U-shaped plate. The screw passes through the midpoint of the connecting rod and is threadedly connected to it. One end of the screw is fixedly provided with a fixing rod that can be engaged in the first groove, and the other end is provided with a driving end.

[0005] The working principle of this utility model is as follows: After the steel wire rope is wrapped around the pipe, the two ends of the fixing rod are engaged in the first grooves on both sides of the second U-shaped plate. Then, the third U-shaped plate is rotated so that the third U-shaped plate and the first U-shaped plate are positioned by the pin shaft. Then, the screw is rotated to apply pressure.

[0006] Preferably, the system also includes two arc-shaped contact plates, the center of the outer arc surface of which is fixedly connected to the first U-shaped plate and the second U-shaped plate respectively away from the opening side. The center line of the symmetry of the U-shaped groove of the first U-shaped plate and the second U-shaped plate is parallel to the arc length direction of the arc-shaped contact plate. The two ends of the steel wire rope are fixedly connected to the ends of the two arc-shaped contact plates respectively.

[0007] Preferably, the upper edges of the two side walls of the first groove are provided with protrusions extending into the first groove.

[0008] Preferably, the length of the fixing rod is adapted to the internal width of the second U-shaped plate, and both ends of the fixing rod are coaxially fixed with a first extension section, which can be respectively inserted into the first groove on the side wall of the second U-shaped plate.

[0009] Preferably, the two side walls of the opening end of the first U-shaped plate are provided with second grooves; the third U-shaped plate is located inside the first U-shaped plate, and the two ends of the connecting rod are respectively provided with second extension sections extending to the outside of the third U-shaped plate. The second extension sections are used to cooperate with the second grooves to limit the position when the third U-shaped plate is located inside the first U-shaped plate. At this time, the first positioning hole and the second positioning hole are coaxial.

[0010] Preferably, the portion between the two arc-shaped segments of the third U-shaped plate is wrapped with a rubber layer.

[0011] Preferably, the arc-shaped contact plate includes two support plates and a connecting plate. The connecting plate is an arc-shaped plate with a circular arc in its vertical cross section. The two support plates are arc-shaped strips and are respectively disposed on both sides of the connecting plate. The sides of the two support plates are respectively fixedly connected to the sides of the connecting plate, and the connection is transitioned by a circular arc.

[0012] Preferably, a reinforcing plate is fixedly provided on the inner side of the connecting plate.

[0013] Preferably, a pressure plate is slidably provided on the wire rope.

[0014] Preferably, the pressure plate, the first U-shaped plate, the second U-shaped plate, the third U-shaped plate, the screw, the fixing rod, and the connecting rod are all metal parts and are provided with an anti-rust layer.

[0015] Compared with existing technologies, the technical solution of this application has the following technical advantages: This device addresses the problems of cumbersome operation and poor adaptability of traditional half-clamp leak sealing operations by achieving efficient and flexible pipeline leak sealing and pressurization through structural innovation. First, the design of flexible steel wire rope encircling the pipeline, combined with the fixing structure of the first and second U-shaped plates, can quickly adapt to pipelines of different diameters without the need to change to specific models, greatly improving on-site construction flexibility. Adjusting the length of the steel wire rope is relatively easy and cost-effective. Second, the hinged design of the third U-shaped plate and the first U-shaped plate, combined with the coaxial cooperation of the side wall positioning holes, allows for quick adjustment and precise positioning of the pressure plate angle, reducing manual calibration time. Finally, through the threaded transmission of the screw and connecting rod, rotating the screw at the drive end to tighten the steel wire rope drives the pressure plate to apply pressure to the leak point. The overall structure combines the advantages of flexible adaptability and efficient operation, making it particularly suitable for the rapid leak sealing needs of complex pipelines in large hydropower stations. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the installation of this utility model.

[0018] Figure 2 This is a schematic diagram of the screw connection of this utility model.

[0019] Figure 3 This is a cross-sectional view of the arc-shaped contact plate of this utility model.

[0020] In the diagram: 1. First U-shaped plate; 2. Second U-shaped plate; 3. Third U-shaped plate; 4. Drive end; 5. Arc-shaped contact plate; 6. Steel wire rope; 7. Screw; 8. Connecting rod; 9. First groove; 10. First extension section; 11. Fixing rod; 12. Second extension section; 13. First positioning hole; 14. Second positioning hole; 15. Pipe; 16. Pressure plate; 17. Second groove; 18. Connecting plate; 19. Support plate; 20. Reinforcing plate. Detailed Implementation

[0021] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0022] like Figure 1 , 2As shown, a pipeline leak-sealing pressurization auxiliary device includes a steel wire rope 6, a pressure plate 16, a first U-shaped plate, a second U-shaped plate, a third U-shaped plate, and a screw 7. The first U-shaped plate and the second U-shaped plate are respectively fixed to both ends of the steel wire rope 6, and the connection points of the first U-shaped plate and the steel wire rope 6 correspond to one end of the symmetrical center line of their U-shaped grooves. The two side walls of the open end of the second U-shaped plate are provided with opposing first grooves 9. The two side walls of the open end of the third U-shaped plate are respectively hinged to the corresponding side walls of the first U-shaped plate at the end away from the steel wire rope 6. The two side walls of the third U-shaped plate are provided with coaxial first positioning holes 13, and a gap is provided between the first positioning holes 13 and the ends of the third U-shaped plate. The two side walls of the first U-shaped plate are provided with opposing coaxial second positioning holes 14, which are movable to be coaxial with the first positioning holes 13. When the third U-shaped plate is rotated so that the first positioning hole 13 and the second positioning hole 14 are coaxial, a pin can be inserted at their center to fix the device relative to the pipe 15. A connecting rod 8 is rotatably mounted inside the third U-shaped plate, perpendicular to and rotatably connected to the side wall of the third U-shaped plate. The screw 7 passes through the midpoint of the connecting rod 8 and is threaded to it. One end of the screw 7 is fixedly fitted with a fixing rod 11 that can engage in the first groove 9, and the other end is fitted with a driving end 4. When the fixing rod 11 is in the first groove 9, the fixing rod 11 remains engaged in the first groove 9 as the screw 7 moves axially. In this embodiment, the driving end 4 is an internal hexagonal hole at the end of the screw 7, allowing the operator to rotate the screw 7 using an L-shaped internal hexagonal wrench. The third U-shaped plate has sufficient space inside for the internal hexagonal wrench to operate.

[0023] like Figure 1 , 2 As shown, preferably, it also includes two arc-shaped contact plates 5. The center of the outer arc surface of the arc-shaped contact plate 5 is fixedly connected to the opposite side of the first U-shaped plate and the second U-shaped plate, respectively. The symmetrical center line of the U-shaped groove of the first U-shaped plate and the second U-shaped plate is parallel to the arc length direction of the arc-shaped contact plate 5. The two ends of the steel wire rope 6 are fixedly connected to the ends of the two arc-shaped contact plates 5, respectively. The addition of arc-shaped contact plates 5 upgrades the contact surface between the device and the pipe 15 from a plane to an arc surface. The arc length direction is parallel to the U-shaped plate groove direction, which effectively improves the adaptability to pipes 15 of different diameters. At the same time, the arc structure can disperse the local stress during pressurization, avoid damage to the surface of the pipe 15, and enhance the uniformity of the sealing contact surface.

[0024] like Figure 2 As shown, preferably, the upper edges of the two side walls of the first groove 9 are provided with protrusions extending into the first groove 9. The protrusions effectively prevent the fixing rod 11 from sliding or coming out during the pressurization process, thereby improving the stability of the device connection and operational safety.

[0025] Preferably, the length of the fixing rod 11 is adapted to the internal width of the second U-shaped plate, and both ends of the fixing rod 11 are coaxially fixed with first extension sections 10. The two first extension sections 10 can be respectively inserted into the first grooves 9 on the side walls of the second U-shaped plate. By adapting the length of the fixing rod 11 to the width of the second U-shaped plate and adding the first extension sections 10 to be inserted into the first grooves 9, a double-end mechanical limit is formed, effectively preventing the fixing rod 11 from sliding or falling out during the pressurization process.

[0026] like Figure 2 As shown, preferably, second grooves 17 are provided on the two side walls of the open end of the first U-shaped plate. The third U-shaped plate is located inside the first U-shaped plate, and the two ends of the connecting rod 8 are respectively provided with second extension sections 12 extending to the outside of the third U-shaped plate. The second extension sections 12 are used to cooperate with the second grooves 17 to limit the position of the third U-shaped plate when it is located inside the first U-shaped plate. At this time, the first positioning hole 13 and the second positioning hole 14 are coaxial. The second extension section 12 of the connecting rod 8 cooperates with the second groove 17 of the first U-shaped plate to limit the position of the third U-shaped plate inside the first U-shaped plate, so that the first and second positioning holes 14 are precisely coaxial, effectively avoiding the displacement of the third U-shaped plate during assembly or pressurization, and improving the stability and positioning accuracy of the device operation.

[0027] Preferably, the portion between the two arc-shaped segments of the third U-shaped plate is covered with a rubber layer. This rubber layer improves operator comfort when pressing down on the third U-shape.

[0028] Preferably, the arc-shaped contact plate 5 includes two support plates 19 and a connecting plate 18. The connecting plate 18 is an arc-shaped plate with a circular arc cross-section. The two support plates 19 are arc-shaped strips and are respectively disposed on both sides of the connecting plate 18. The sides of the two support plates 19 are fixedly connected to the sides of the connecting plate 18, and the connection is transitioned by an arc. When the operator rotates the screw 7, the arc-shaped contact plate 5 below the first U-shaped plate and the second U-shaped plate applies downward pressure, and the connecting plate 18 will undergo elastic deformation, avoiding damage caused by rigid contact.

[0029] Preferably, a reinforcing plate 20 is fixedly provided on the inner side of the connecting plate 18. The reinforcing plate 20 effectively improves its bending stiffness and structural strength, reduces deformation under pressure, and ensures stable contact between the arc-shaped contact plate 5 and the curved surface of the pipe 15, thereby enhancing the sealing effect and extending the service life of the device.

[0030] Preferably, a pressure plate 16 is slidably mounted on the wire rope 6. By slidably mounting the pressure plate 16 on the wire rope 6, the pressure position can be flexibly adjusted to accurately target the leak point of the pipeline 15, improving the adaptability and convenience of the leak sealing operation.

[0031] Preferably, the pressure plate 16, the first U-shaped plate, the second U-shaped plate, the third U-shaped plate, the screw 7, the fixing rod 11, and the connecting rod 8 are all metal parts with an anti-rust layer. Using metal parts with an anti-rust layer for key components ensures structural stability by leveraging the high strength of metal, while preventing operational jamming or sealing failure due to rust through anti-rust treatment, significantly extending the device's service life and improving its reliability.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A pressurized auxiliary device for pipe plugging, characterized in that: The device includes a wire rope (6), a pressure plate (16), a first U-shaped plate (1), a second U-shaped plate (2), a third U-shaped plate (3), and a screw (7). The first U-shaped plate (1) and the second U-shaped plate (2) are respectively fixed to both ends of the wire rope (6), and the connection points of the first U-shaped plate (1) and the second U-shaped plate (2) with the wire rope (6) correspond to one end of the symmetrical center line of their U-shaped grooves. The two side walls of the open end of the second U-shaped plate (2) are provided with first grooves (9) facing each other. The two side walls of the open end of the third U-shaped plate (3) are respectively opposite to the end of the first U-shaped plate (1) away from the wire rope (6). The corresponding two side walls are hinged. The two side walls of the third U-shaped plate (3) are provided with coaxial first positioning holes (13). The two side walls of the first U-shaped plate (1) are provided with coaxial second positioning holes (14). The second positioning holes (14) can be moved to be coaxial with the first positioning holes (13). The interior of the third U-shaped plate (3) is provided with a connecting rod (8). The screw (7) passes through the midpoint of the connecting rod (8) and is threadedly connected to it. One end of the screw (7) is fixedly provided with a fixing rod (11) that can be engaged in the first groove (9), and the other end is provided with a driving end (4).

2. A pressurizing auxiliary device for pipe leak stoppage according to claim 1, characterized in that: It also includes two arc-shaped contact plates (5), the center of the outer arc surface of the arc-shaped contact plates (5) is fixedly connected to the first U-shaped plate (1) and the second U-shaped plate (2) respectively away from the opening side, the center line of the symmetry of the U-shaped groove of the first U-shaped plate (1) and the second U-shaped plate (2) is parallel to the arc length direction of the arc-shaped contact plate (5); the two ends of the steel wire rope (6) are fixedly connected to the ends of the two arc-shaped contact plates (5) respectively.

3. The pipeline leak-sealing and pressurization auxiliary device according to claim 2, characterized in that: The upper edges of the two side walls of the first groove (9) are provided with protrusions extending into the first groove (9).

4. The pipeline leak-sealing and pressurization auxiliary device according to claim 3, characterized in that: The length of the fixing rod (11) is adapted to the internal width of the second U-shaped plate (2). Both ends of the fixing rod (11) are coaxially fixed with first extension sections (10). The two first extension sections (10) can be respectively inserted into the first grooves (9) on the two side walls of the second U-shaped plate (2).

5. The pipeline leak-sealing and pressurization auxiliary device according to claim 4, characterized in that: The first U-shaped plate (1) has two opposite grooves (17) on the two side walls of the opening end; the third U-shaped plate (3) is located inside the first U-shaped plate (1), and the two ends of the connecting rod (8) are respectively provided with a second extension section (12) extending to the outside of the third U-shaped plate (3). The second extension section (12) is used to cooperate with the second groove (17) to limit the position when the third U-shaped plate (3) is located inside the first U-shaped plate (1). At this time, the first positioning hole (13) and the second positioning hole (14) are coaxial.

6. The pipeline leak-sealing and pressurization auxiliary device according to claim 1, characterized in that: The portion between the two arc-shaped segments of the third U-shaped plate (3) is wrapped with a rubber layer.

7. The pipeline plugging and pressurization auxiliary device according to claim 2, characterized in that: The arc-shaped contact plate (5) includes two support plates (19) and a connecting plate (18). The connecting plate (18) is an arc-shaped plate with a vertical cross section of a circular arc. The two support plates (19) are arc-shaped strips and are respectively arranged on both sides of the connecting plate (18). The sides of the two support plates (19) are respectively fixedly connected to the sides of the connecting plate (18), and the connection is transitioned by a circular arc.

8. The pipeline leak-sealing and pressurization auxiliary device according to claim 7, characterized in that: A reinforcing plate (20) is fixedly provided on the inner side of the connecting plate (18).

9. The pipeline sealing and pressurization auxiliary device according to claim 1, characterized in that: A pressure plate (16) is slidably mounted on the wire rope (6).

10. The pipeline leak-sealing and pressurization auxiliary device according to claim 1, characterized in that: The pressure plate (16), the first U-shaped plate (1), the second U-shaped plate (2), the third U-shaped plate (3), the screw (7), the fixing rod (11), and the connecting rod (8) are all metal parts and are provided with an anti-rust layer.

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