Water plugging device for urban water supply pipeline repair

Abstract

The application belongs to the technical field of pipeline repair, and particularly relates to a water plugging equipment for urban water supply pipeline repair, which comprises a gas cylinder and a fixed pipe which can be inserted into the inside of a pipeline. The end of the gas cylinder is movably connected with a movable rod. The movable rod is provided with a piston at one end, and the piston moves in the inside of the gas cylinder. Threaded holes are formed in the gas cylinder. Threaded columns are arranged in the threaded holes, and handles are arranged on the threaded columns. The fixed pipe is fixedly arranged at the end of the gas cylinder. The end of the fixed pipe is provided with an elastic air bag. The end of the gas cylinder close to the elastic air bag is provided with a clamping mechanism which can fix the gas cylinder on the pipeline. The water plugging equipment can solve the problem that the maintenance personnel is difficult to insert the rubber object into the water supply pipeline due to the large friction force between the water plugging equipment and the inner wall of the pipeline, and a large amount of time is consumed.

Description

Technical Field

[0001] This invention belongs to the field of pipeline maintenance technology, specifically relating to a water-blocking device for urban water supply pipeline maintenance. Background Technology

[0002] A pipeline is a system of pipes, pipe fittings, valves, and other components used to transport gases, liquids, or fluids containing solid particles. Typically, fluids are pressurized by blowers, compressors, pumps, and boilers, flowing from high-pressure areas to low-pressure areas within the pipeline. Alternatively, the fluid's own pressure or gravity can be used for transport. Pipelines have a wide range of applications, primarily in water supply, drainage, heating, gas supply, long-distance transport of oil and natural gas, agricultural irrigation, hydraulic engineering, and various industrial installations. Water transport is particularly common. During building construction and renovation, water supply pipes are generally installed by embedding them in walls. Over time, water supply pipes inevitably suffer damage. To prevent disruption to usage, it is necessary to plug the pipes for repair.

[0003] Currently, repairmen typically insert a rubber object into the water supply pipe to block it before performing repairs. However, the high friction of rubber makes it difficult for repairmen to insert the object, resulting in a significant time commitment. Summary of the Invention

[0004] The purpose of this invention is to provide a water-blocking device for urban water supply pipeline maintenance, which solves the problem that due to the high friction between the water-blocking device and the inner wall of the pipeline, it is difficult for maintenance personnel to insert rubber objects into the water supply pipeline, resulting in a lot of time consumption.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0006] A water-blocking device for urban water supply pipeline maintenance includes an air storage cylinder and a fixed pipe that can be inserted into the pipeline. A movable rod is movably connected to the end of the air storage cylinder. A piston is provided at one end of the movable rod and moves inside the air storage cylinder. A threaded hole is opened on the air storage cylinder, and a threaded post is provided in the threaded hole. A handle is provided on the threaded post. The fixed pipe is fixedly installed at the end of the air storage cylinder. An elastic air bladder is provided at the end of the fixed pipe. A clamping mechanism is provided at the end of the air storage cylinder near the elastic air bladder to fix the air storage cylinder to the pipeline.

[0007] Further defined, the clamping mechanism includes a rotating disk and a rotating clamping block. A first fixed disk is fixedly installed at the end of the gas storage cylinder, and a second fixed disk is fixedly installed on one side of the first fixed disk. The rotating disk is rotatably installed between the second fixed disk and the first fixed disk. A first groove is formed on the side of the rotating disk near the second fixed disk. A ring rack is fixedly installed inside the first groove. Several fixed posts are fixedly installed on the inner wall of the first groove. Gears are rotatably installed on the fixed posts. The gears mesh with the ring rack. A connecting post is fixedly installed on one side of the gear. A rotating clamping block is fixedly installed at the end of the connecting post. A second groove is provided on the side of the rotating disk near the first fixed disk. A third fixed disk is fixedly installed in the second groove. Several fixed teeth are evenly spaced on the third fixed disk. A snap-fit ​​component is provided on the first fixed disk to prevent the third fixed disk from rotating in both directions. With this structural design, when the rotating disc is rotated, the ring rack drives the gear to rotate, which in turn drives the connecting column and the rotating clamping block to rotate until the rotating clamping block is pressed against the outer wall of the pipe. The snap-fit ​​component prevents the rotating disc from rotating back by snapping into the third fixed disc, thereby fixing the air storage cylinder at the pipe opening and preventing the water pressure inside the pipe from pushing the water blocking device out.

[0008] Further specifying, the snap-fit ​​component includes a pull rod, a connecting block, and a movable snap-fit ​​block. The first fixed plate has an internal mounting groove. Both the pull rod and the connecting block are movably mounted within the mounting groove. One end of the pull rod is connected to the connecting block, and the movable snap-fit ​​block is fixedly mounted on the other end of the connecting block. The movable snap-fit ​​block is movably mounted between adjacent fixed teeth on the third fixed plate. The upper end of the pull rod has a pull ring, and the lower end of the pull rod has a tension spring fixedly mounted. The other end of the tension spring is fixedly connected to the wall of the mounting groove. With this structural design, when the rotating plate rotates, the movable snap-fit ​​block is actuated by the fixed teeth. Under the tension of the tension spring, the pull rod, through the connecting block, pulls the movable snap-fit ​​block into the space between adjacent fixed teeth, preventing the rotating plate from rotating in the opposite direction. When the pull rod is pulled upwards by the pull ring, the resistance of the movable snap-fit ​​block to the rotating plate is eliminated, allowing the rotating plate to rotate freely and releasing the clamping block from the pipe, facilitating disassembly.

[0009] Further specifying, the fixed tube has a through hole, and a fixed cylinder is fixedly installed inside the through hole. A conical compression spring is installed inside the fixed cylinder, and a movable ball that abuts against the wall of the fixed cylinder is fixedly installed on the conical compression spring. The movable ball has a force-receiving component, and a movable component at the top of the fixed cylinder applies a downward thrust to the force-receiving component. This structural design allows the movable component to exert a downward thrust on the force-receiving component, causing the movable ball to compress the conical compression spring, thereby expelling air from the fixed tube and causing the elastic airbag to contract, facilitating the disassembly of the water-blocking device.

[0010] Further specifying, the force-bearing component includes a fixing strip and a force-bearing disc. The fixing strip is fixedly mounted on the movable ball, and the force-bearing disc is fixedly mounted on the upper end of the fixing strip. The force-bearing disc is movable inside the fixed cylinder, and a circular hole is provided on the force-bearing disc. This structural design, with the force-bearing disc positioned at the upper end of the fixing strip, increases the force-bearing area, and the circular hole on the force-bearing disc ensures airflow.

[0011] Further specifying, the movable component includes a pull rope, a rotating bar, and a pushing bar. The lower end of the pull rod is fixedly fitted with the pull rope, and a fixed shaft is fixedly installed in the mounting groove. The rotating bar is rotatably mounted on the fixed shaft and is fixedly connected to the pull rope. The pushing bar is fixedly mounted on the rotating bar and contacts the force-receiving plate. This structural design allows the pull rope to pull the rotating bar around the fixed shaft when the pull rod is pulled upwards, thereby causing the pushing bar to exert a downward thrust on the force-receiving plate. Simultaneously, as the clamping mechanism releases its clamp on the pipe, air is released from the elastic airbag, making it more convenient to use.

[0012] Furthermore, a spring is fixedly installed between the rotating bar and the wall of the mounting groove. This structural design allows the spring to provide a restoring force to the rotating bar after it rotates, enabling it to return to its initial state more quickly.

[0013] Furthermore, the first fixed plate has an internal air guide groove that communicates with the mounting groove, and an air outlet is provided on the first fixed plate that communicates with the air guide groove. This structural design, with the air guide groove and air outlet, ensures the discharge speed of air flowing out from the fixed cylinder.

[0014] The invention employing the above technical solution has the following advantages:

[0015] 1. After inserting the fixed tube and elastic airbag into the pipe, push the movable rod. The piston at the end of the movable rod will compress air into the elastic airbag, causing the elastic airbag to expand and block the pipe. At this time, rotate the threaded column, which will lock the movable rod. The elastic airbag will remain inflated and the pipe will be clamped by the clamping mechanism, ensuring the blocking effect of the elastic airbag on the water flow in the pipe. This is convenient to use and saves time.

[0016] 2. The rotating disc drives the gear to rotate through the ring rack inside, which in turn makes the rotating clamping block stick tightly to the outer wall of the pipe, increasing the friction and preventing the water blocking device from being pushed out of the pipe by the pressure of the water flow.

[0017] 3. A snap-fit ​​connector is installed to provide a one-way locking effect on the third fixing plate, preventing the pipe from loosening after the clamping block is rotated to clamp it.

[0018] 4. When the pull rod is pulled upward, the pull rope pulls the rotating bar to rotate around the fixed axis, which in turn causes the push bar to generate a downward thrust on the force plate. At the same time as the clamping mechanism loosens its clamping state on the pipe, the air inside the elastic airbag is released, making it more convenient to use. Attached Figure Description

[0019] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0020] Figure 1 This is a schematic diagram of an embodiment of a water-blocking device for urban water supply pipeline maintenance according to the present invention;

[0021] Figure 2 This is a partial structural diagram of the clamping mechanism in an embodiment of a water-blocking device for urban water supply pipeline maintenance according to the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the first fixed plate, the second fixed plate, the third fixed plate, and the rotating plate in an embodiment of a water-blocking device for urban water supply pipeline maintenance according to the present invention;

[0023] Figure 4 This is a cross-sectional structural schematic diagram of an embodiment of a water-blocking device for urban water supply pipeline maintenance according to the present invention;

[0024] Figure 5 for Figure 4 Enlarged structural diagram at point A;

[0025] Figure 6 for Figure 4 Enlarged structural diagram at point B;

[0026] Figure 7 This is a schematic diagram of the snap-fit ​​component in an embodiment of a water-blocking device for urban water supply pipeline maintenance according to the present invention.

[0027] The symbols for the main components are explained below:

[0028] Gas cylinder 1, movable rod 11, threaded column 12

[0029] 2. Fixed tube; 3. Elastic airbag

[0030] Clamping mechanism 4, first fixed plate 41, second fixed plate 42, rotating plate 43, ring rack 44, gear 45, connecting column 46, rotating clamping block 47, third fixed plate 48

[0031] 5. Connecting component 5; 51. Pull rod 52; Connecting block 53; Movable locking block 54; Pull ring 55; Tension spring 56

[0032] Fixed cylinder 6, fixed strip 61, force-bearing plate 62

[0033] 7. Pull rope 71. Rotating bar 72. Push bar 73. Spring piece 74.

[0034] Air guide groove 8, air outlet 81. Detailed Implementation

[0035] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts are referred to by the same reference numerals in the drawings or description. Implementations not shown or described in the drawings are forms known to those skilled in the art. In addition, directional terms mentioned in the embodiments, such as "up," "down," "top," "bottom," "left," "right," "front," and "back," are only for reference to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0036] like Figures 1-7 As shown, a water-blocking device for urban water supply pipeline maintenance according to the present invention includes an air storage cylinder 1 and a fixed pipe 2 that can be inserted into the pipeline. A movable rod 11 is movably inserted into the end of the air storage cylinder 1. A piston is provided at one end of the movable rod 11 and the piston moves inside the air storage cylinder 1. A threaded hole is opened on the air storage cylinder 1, and a threaded post 12 is provided in the threaded hole. A handle is provided on the threaded post 12. The fixed pipe 2 is fixedly installed at the end of the air storage cylinder 1. An elastic air bladder 3 is provided at the end of the fixed pipe 2. A clamping mechanism 4 that can fix the air storage cylinder 1 to the pipeline is provided at the end of the air storage cylinder 1 near the elastic air bladder 3.

[0037] The clamping mechanism 4 includes a rotating disk 43 and a rotating clamping block 47. A first fixed disk 41 is fixedly installed at the end of the air storage cylinder 1. A second fixed disk 42 is fixedly installed on one side of the first fixed disk 41. The rotating disk 43 is rotatably installed between the second fixed disk 42 and the first fixed disk 41. A first groove is provided on the side of the rotating disk 43 near the second fixed disk 42. A ring rack 44 is fixedly installed inside the first groove. Several fixed posts are fixedly installed on the inner wall of the first groove. A gear 45 is rotatably installed on the fixed post. The gear 45 meshes with the ring rack 44. A connecting post 46 is fixedly installed on one side of the gear 45. A rotating clamping block 47 is fixedly installed at the end of the connecting post 46. A second groove is provided on the side of the rotating disk 43 near the first fixed disk 41. A third fixed disk 48 is fixedly installed inside the second groove. Several fixed teeth are evenly spaced on the third fixed disk 48. A snap-fit ​​part 5 is provided on the first fixed disk 41 to prevent the third fixed disk 48 from rotating in both directions.

[0038] The snap-fit ​​component 5 includes a pull rod 51, a connecting block 52, and a movable locking block 53. The first fixed plate 41 has an installation groove inside. The pull rod 51 and the connecting block 52 are both movably installed in the installation groove. One end of the pull rod 51 is connected to one end of the connecting block 52. The movable locking block 53 is fixedly installed at the other end of the connecting block 52. The movable locking block 53 is movably installed between adjacent fixed teeth on the third fixed plate 48. The upper end of the pull rod 51 is provided with a pull ring 54. The lower end of the pull rod 51 is fixedly installed with a tension spring 55. The other end of the tension spring 55 is fixedly connected to the groove wall of the installation groove.

[0039] A through hole is provided on the fixed tube 2, and a fixed cylinder 6 is fixedly installed in the through hole. A conical compression spring is provided inside the fixed cylinder 6. A movable ball that abuts against the wall of the fixed cylinder 6 is fixedly installed on the conical compression spring. A force-bearing component is provided on the movable ball. A movable component that applies a downward thrust to the force-bearing component is provided on the upper part of the fixed cylinder 6.

[0040] The force-bearing components include a fixing strip 61 and a force-bearing plate 62. The fixing strip 61 is fixedly installed on the movable ball, and the force-bearing plate 62 is fixedly installed on the upper end of the fixing strip 61. The force-bearing plate 62 is movable inside the fixing cylinder 6, and a round hole is provided on the force-bearing plate 62.

[0041] The movable parts include a pull rope 7, a rotating bar 71, and a push bar 72. The lower end of the pull rod 51 is fixedly installed with the pull rope 7, and a fixed shaft is fixedly installed in the mounting groove. The rotating bar 71 is rotatably installed on the fixed shaft and is fixedly connected to the pull rope 7. The push bar 72 is fixedly installed on the rotating bar 71 and is in contact with the force-receiving disk 62.

[0042] A spring clip 73 is fixedly installed between the rotating bar 71 and the wall of the mounting groove.

[0043] The first fixed plate 41 has an air guide groove 8 inside, which is connected to the mounting groove. The first fixed plate 41 has an air outlet 81, which is connected to the air guide groove 8.

[0044] In this embodiment, when in use, the fixed tube 2 and the elastic airbag 3 are inserted into the pipe. When the second fixed plate 42 contacts the pipe, the movable rod 11 is pushed. The piston at the end of the movable rod 11 squeezes the air inside the air storage cylinder 1 into the fixed tube 2 and the elastic airbag 3, causing the elastic airbag 3 to expand and block the pipe.

[0045] Rotating the threaded column 12 locks the movable rod 11, preventing the movable rod 11 from moving and keeping the piston in the position inside the air reservoir 1, thereby keeping the elastic airbag 3 in an inflated state.

[0046] Rotate the rotating disk 43, and the ring rack 44 drives the gear 45 to rotate, which in turn causes the rotating clamping block 47 to rotate until it is pressed against the outer wall of the pipe, so that the clamping mechanism 4 enters the clamping state.

[0047] When the rotating clamping block 47 is pressed tightly against the outer wall of the pipe, the movable locking block 53, together with the pulling rod 51, the connecting block 52 and the tension spring 55, produces a one-way locking effect on the third fixed plate 48, which prevents the pipe from loosening after the rotating clamping block 47 clamps it.

[0048] When disassembling the water-blocking device, the pulling ring 54 pulls the pulling rod 51 upward. At this time, the movable block 53 moves upward and disengages from the contact relationship with the fixed teeth on the third fixed plate 48, so that the third fixed plate 48 is in a free rotation state, causing the clamping mechanism 4 to release the clamping effect on the pipe.

[0049] As the clamping mechanism 4 releases its clamping effect on the pipe, the upward pulling rod 51 pulls the rotating bar 71 around the fixed axis via the pull rope 7, thereby causing the pushing bar 72 to generate a downward thrust on the force plate 62, pushing the movable ball downward. The sealing effect at the fixed cylinder 6 is released, allowing the air inside the elastic airbag 3 to be released. The elastic airbag 3 contracts, making it easy to remove the water blocking device from the pipe.

[0050] The above provides a detailed description of a water-blocking device for urban water supply pipeline maintenance provided by the present invention. The specific embodiments described are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A water-blocking device for urban water supply pipeline maintenance, comprising an air storage tank (1) and a fixed pipe (2) that can be inserted into the pipeline, characterized in that: A movable rod (11) is movably inserted into the end of the gas storage cylinder (1). A piston is provided at one end of the movable rod (11), and the piston moves inside the gas storage cylinder (1). A threaded hole is provided on the gas storage cylinder (1), and a threaded post (12) is provided in the threaded hole. A handle is provided on the threaded post (12). The fixed tube (2) is fixedly installed at the end of the gas storage cylinder (1). An elastic airbag (3) is provided at the end of the fixed tube (2). A clamping mechanism (4) that can fix the gas storage cylinder (1) to the pipeline is provided at the end of the gas storage cylinder (1) near the elastic airbag (3). The clamping mechanism (4) includes a rotating disk (43) and a rotating clamping block (47). A first fixed disk (41) is fixedly installed at the end of the gas storage cylinder (1). A second fixed disk (42) is fixedly installed on one side of the first fixed disk (41). The rotating disk (43) is rotatably installed between the second fixed disk (42) and the first fixed disk (41). A first groove is provided on the side of the rotating disk (43) near the second fixed disk (42). An annular rack (44) is fixedly installed inside the first groove. A plurality of fixed posts are fixedly installed on the inner wall of the first groove. A gear (45) is rotatably mounted on the top, and the gear (45) meshes with the ring rack (44). A connecting column (46) is fixedly mounted on one side of the gear (45), and a rotating clamping block (47) is fixedly mounted on the end of the connecting column (46). A second groove is provided on the side of the rotating disk (43) near the first fixed disk (41). A third fixed disk (48) is fixedly mounted in the second groove. A number of fixed teeth are evenly spaced on the third fixed disk (48). A snap-fit ​​component (5) is provided on the first fixed disk (41) to prevent the third fixed disk (48) from rotating in both directions. The snap-fit ​​component (5) includes a pull rod (51), a connecting block (52), and a movable snap-fit ​​block (53). The first fixed plate (41) has an installation groove inside. The pull rod (51) and the connecting block (52) are both movably installed in the installation groove. The pull rod (51) is connected to one end of the connecting block (52). The movable snap-fit ​​block (53) is fixedly installed at the other end of the connecting block (52). The movable snap-fit ​​block (53) is movably installed between adjacent fixed teeth on the third fixed plate (48). The upper end of the pull rod (51) is provided with a pull ring (54). The lower end of the pull rod (51) is fixedly installed with a tension spring (55). The other end of the tension spring (55) is fixedly connected to the groove wall of the installation groove. The fixed tube (2) has a through hole, and a fixed cylinder (6) is fixedly installed in the through hole. The fixed cylinder (6) has a conical compression spring inside, and a movable ball that abuts against the wall of the fixed cylinder (6) is fixedly installed on the conical compression spring. The movable ball has a force-bearing component, and the upper part of the fixed cylinder (6) has a movable component that applies a downward thrust to the force-bearing component. The force-bearing component includes a fixing strip (61) and a force-bearing plate (62). The fixing strip (61) is fixedly installed on the movable ball, and the force-bearing plate (62) is fixedly installed on the upper end of the fixing strip (61). The force-bearing plate (62) is movable inside the fixing cylinder (6), and a round hole is provided on the force-bearing plate (62). The movable parts include a pull rope (7), a rotating bar (71), and a pushing bar (72). The lower end of the pull rod (51) is fixedly installed with the pull rope (7). A fixed shaft is fixedly installed in the mounting groove. The rotating bar (71) is rotatably installed on the fixed shaft. The rotating bar (71) is fixedly connected to the pull rope (7). The pushing bar (72) is fixedly installed on the rotating bar (71). The pushing bar (72) is in contact with the force-receiving plate (62).

2. The water-blocking device for urban water supply pipeline maintenance according to claim 1, characterized in that: A spring clip (73) is fixedly installed between the rotating bar (71) and the wall of the mounting groove.

3. The water-blocking device for urban water supply pipeline maintenance according to claim 1, characterized in that: The first fixed plate (41) has an air guide groove (8) inside, which is connected to the mounting groove. The first fixed plate (41) has an air outlet (81) which is connected to the air guide groove (8).

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