A water blocking device for urban water supply pipeline maintenance

Abstract

The present invention belongs to the technical field of pipes, in particular to a water blocking device for repairing urban water supply pipelines. The following scheme is now proposed, including a sleeve, a connecting sleeve and a water blocking mechanism. A fixed shaft is bolted between the bottom of the sleeve and the top of the connecting sleeve. The water blocking mechanism is located at the bottom of the connecting sleeve. Brackets are bolted to the inner wall of the sleeve at both the top and bottom positions, and a rotating mechanism is arranged between the two brackets. The rotating mechanism cooperates with the water blocking mechanism. The water blocking mechanism consists of a compression component and an elastic bladder, and the elastic bladder is adhesively bonded to the outer wall of the connecting sleeve. A gas hole is opened on one side of the top of the elastic bladder, and a conduit is arranged inside the gas hole. The present invention facilitates the removal of the device from the inside of the water supply pipeline. Compared with the existing method of using rubber materials to block water, this device is more convenient to install and remove when blocking water, thus improving the convenience of the device for blocking water in the water supply pipeline.

Description

Technical Field

[0001] The present invention relates to the field of pipes, and particularly to a water blocking device for the maintenance of urban water supply pipelines. Background Art

[0002] Pipes are widely used, mainly in water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering and various industrial installations. It is common for pipes to be used for water transportation. During the building decoration process, water supply pipes are generally installed by the method of embedding in the wall. When the water supply pipes are used for a long time, they will inevitably be damaged. In order not to affect the use, it is necessary to block the water supply pipes and then repair them.

[0003] After retrieval, a Chinese patent application with the publication number of CN115163969A discloses a water blocking device for the maintenance of urban water supply pipelines, including an air storage cylinder and a fixed pipe that can be inserted into the inside of the pipeline. One end of the air storage cylinder is movably inserted with a movable rod. One end of the movable rod is provided with a piston, and the piston moves inside the air storage cylinder. A threaded hole is opened on the air storage cylinder, a threaded column is arranged in the threaded hole, and a handle is arranged on the threaded column. The fixed pipe is fixedly installed at the end of the air storage cylinder, and an elastic airbag is arranged at the end of the fixed pipe. One end of the air storage cylinder close to the elastic airbag is provided with a clamping mechanism that can fix the air storage cylinder on the pipeline. Its purpose is to solve the problem that it is difficult for maintenance personnel to insert an object made of rubber material into the water supply pipeline due to the large friction force between the water blocking device and the inner wall of the pipeline, and a large amount of time is required.

[0004] When the existing equipment is used to block the water in the pipeline, the maintenance worker inserts an object made of rubber material into the water supply pipeline to block the water supply pipeline, and then repairs the water supply pipeline. However, the object made of rubber material has a large friction force, which makes it difficult for the maintenance personnel to insert the object made of rubber material into the water supply pipeline or when it needs to be taken out, part of the rubber will be stuck inside the water supply pipeline due to friction and it is difficult to take out. Summary of the Invention

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A water-blocking device for repairing urban water supply pipelines, comprising a sleeve, a connecting sleeve and a water-blocking mechanism. A fixed shaft is connected between the bottom of the sleeve and the top of the connecting sleeve by bolts. The water-blocking mechanism is located at the bottom of the connecting sleeve. Brackets are connected to the inner wall of the sleeve at the top and bottom positions by bolts, and a rotating mechanism is arranged between the two brackets. The rotating mechanism cooperates with the water-blocking mechanism. The water-blocking mechanism consists of a compression component and an elastic bladder, and the elastic bladder is adhesively bonded to the outer wall of the connecting sleeve. A gas hole is opened on one side of the top of the elastic bladder, and a conduit is arranged inside the gas hole. The conduit is made of elastic material. One end of the conduit is provided with a one-way intake valve. The compression component is arranged on the top of the elastic bladder.

[0007] Preferably, the rotating mechanism includes a rotating rod, a turntable and a rotating handle. The two ends of the rotating rod are rotatably connected to the two brackets through bearings. The top of the rotating rod is welded to the bottom of the turntable. One side of the top of the turntable is fixedly connected to the bottom of the rotating handle.

[0008] Preferably, the compression component includes a compression cylinder, a piston plate, a push rod, a first top block and a second top block, and the first top block and the second top block cooperate with each other. A plurality of protruding parts are arranged on the opposite sides of the first top block and the second top block. The bottom of the second top block is connected to the top of the push rod by bolts. The bottom of the push rod is connected to the top of the piston plate by bolts. The piston plate is slidably connected to the inner wall of the compression cylinder. A support rod is connected between the circumferential outer wall of the compression cylinder and the inner wall of the connecting sleeve by bolts. The bottom of the compression cylinder is adhesively bonded to the elastic bladder. A through hole is opened between the bottom of the compression cylinder and the elastic bladder. The top of the first top block is connected to the bottom of the rotating rod by bolts.

[0009] Preferably, sliding grooves are opened on both sides of the inner wall of the connecting sleeve, and sliders are slidably connected to the inner walls of the two sliding grooves. Springs are connected between the bottoms of the sliders and the sliding grooves by bolts. A connecting shaft is connected between one side of the slider and the second top block.

[0010] Preferably, three equally spaced fixed seats are welded to the circumferential outer wall of the sleeve, and a through opening is formed through the side of the fixed seat and the inner wall of the sleeve. A fixing mechanism is arranged between the through opening and the inside of the sleeve. The fixing mechanism cooperates with the rotating mechanism.

[0011] Preferably, the fixing mechanism consists of a push plate and an extrusion pad. The push plate is slidably connected to the inner wall of the through opening. One side of the push plate is adhesively bonded to the extrusion pad. One side position of the extrusion pad is an arc surface. A plurality of anti-slip ridges are arranged on one side of the extrusion pad. Both the anti-slip ridges and the extrusion pad are made of elastic material. A transmission component is arranged between the rotating rod and the push plate.

[0012] Preferably, the transmission component is composed of a first transmission group and a second transmission group, and the first transmission group and the second transmission group cooperate with each other.

[0013] Preferably, the first transmission group is composed of a runner, three first racks, three shaft rods and three first gears. The runner is fixedly sleeved on the outer wall of the rotating rod. Three notches are formed on the circumferential outer wall of the runner. The three notches are connected to the three first racks by bolts. The shape of the first rack is arc-shaped. Both ends of the shaft rod are rotatably connected to the through port through bearings. The first gear is fixedly sleeved on the outer wall of the shaft rod. The first gear is adapted to the first rack.

[0014] Preferably, the second transmission group is composed of a support rod, a second gear, a second rack, two pulleys and a belt. The support rod is rotatably connected to the opposite sides of the through port through bearings. One of the pulleys is fixedly sleeved on the outer wall of the support rod. The other pulley is fixedly sleeved on the outer wall of the shaft rod. The two pulleys are rotatably connected to the belt. The sizes of the two pulleys are different. The second gear is fixedly sleeved on the outer wall of the support rod. The second rack meshes with the second gear. One side of the second rack is welded to the push plate.

[0015] The beneficial effects of the present invention are as follows:

[0016] When the present invention is used to plug a water supply pipe through the provided rotating mechanism and water blocking mechanism, after inserting the sleeve and the connecting sleeve into the water supply pipe, when the insertion is completed, rotate the turntable, and the turntable will drive the rotating rod to rotate. At this time, the first top block will rotate synchronously with the rotation of the rotating rod. At this time, through the cooperation between the first top block and the second top block, the second top block drives the push rod to move up and down reciprocally. The piston plate will also move up and down reciprocally following the push rod. When the piston plate moves reciprocally, it will inflate the inside of the elastic bladder. At this time, the elastic bladder will bulge due to the input of gas. The bulging elastic bladder will closely adhere to the inside of the water supply pipe, so as to plug the inside of the water supply pipe through the bulging elastic bladder. When the maintenance is completed, take out the one-way air inlet valve. At this time, the gas inside the elastic bladder will be discharged through the conduit. At this time, the elastic bladder will contract, so as to facilitate the removal of the device from the inside of the water supply pipe. Compared with the existing method of using rubber materials to block water, this device is more convenient to install and remove when blocking water, thus improving the convenience of the device for blocking the water supply pipe;

[0017] Through the provided rotating mechanism and fixing mechanism, when plugging the water supply pipeline, the sleeve and the connecting sleeve are inserted into the interior of the water supply pipeline. At this time, rotate the turntable, and the rotating rod will drive the rotating wheel to rotate. At this time, the first rack will rotate along with the rotation of the rotating wheel. When the first rack contacts the first gear during rotation, at this time, the first gear drives the shaft rod to rotate through the meshing between the first rack and the first gear. When the shaft rod rotates, one of the pulleys will rotate along with the rotation of the shaft rod. At this time, the support rod rotates through the cooperation between the two pulleys and the belt. The second gear will rotate along with the rotation of the support rod. The second rack drives the push plate to move through the meshing between the second gear and the second rack. At this time, the extrusion pad presses against the inner wall of the water supply pipeline, and the anti-slip ridges increase the friction between the extrusion pad and the inner wall of the water supply pipeline, so as to fix the equipment, thereby improving the stability of the equipment for plugging water and preventing the equipment from slipping off from the interior of the water supply pipeline due to the impact of water flow, thus affecting the water plugging of the water supply pipeline. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of a water plugging device for urban water supply pipeline maintenance proposed by the present invention;

[0019] Figure 2 It is a schematic cross-sectional structural diagram of a water plugging device for urban water supply pipeline maintenance proposed by the present invention;

[0020] Figure 3 It is a schematic partial structural diagram of a water plugging device for urban water supply pipeline maintenance proposed by the present invention;

[0021] Figure 4 It is a schematic structural diagram of the water plugging mechanism of a water plugging device for urban water supply pipeline maintenance proposed by the present invention;

[0022] Figure 5 It is a schematic structural diagram of the compression component of a water plugging device for urban water supply pipeline maintenance proposed by the present invention;

[0023] Figure 6 It is a schematic structural diagram of the fixing mechanism of a water plugging device for urban water supply pipeline maintenance proposed by the present invention;

[0024] Figure 7 It is a schematic structural diagram of the transmission component of a water plugging device for urban water supply pipeline maintenance proposed by the present invention.

[0025] In the attached drawings: 1. Sleeve; 2. Connecting sleeve; 3. Elastic bladder; 4. Fixed seat; 5. Bracket; 6. Rotating mechanism; 7. Compression assembly; 8. Through hole; 9. Fixing mechanism; 10. Transmission assembly; 11. Rotating rod; 12. Turntable; 13. Rotating handle; 14. Compression cylinder; 15. Support rod; 16. Duct; 17. One-way air inlet valve; 18. First top block; 19. Second top block; 20. Connecting shaft; 21. Slide block; 22. Spring; 23. Push rod; 24. Piston plate; 25. Push plate; 26. Extrusion pad; 27. Anti-slip rib; 28. Runner; 29. First rack; 30. Shaft rod; 31. First gear; 32. Support bar; 33. Pulley; 34. Belt; 35. Second gear; 36. Second rack. Detailed implementation mode

[0026] Example 1, referring to Figures 1-5 , a water blocking device for repairing urban water supply pipelines, including a sleeve 1, a connecting sleeve 2 and a water blocking mechanism. A fixed shaft is bolted between the bottom of the sleeve 1 and the top of the connecting sleeve 2. The water blocking mechanism is located at the bottom of the connecting sleeve 2. Brackets 5 are bolted to the inner wall of the sleeve 1 at both the top and bottom positions, and a rotating mechanism 6 is arranged between the two brackets 5. The rotating mechanism 6 cooperates with the water blocking mechanism. The water blocking mechanism consists of a compression assembly 7 and an elastic bladder 3, and the elastic bladder 3 is bonded to the outer wall of the connecting sleeve 2. An air hole is opened on one side of the top of the elastic bladder 3, and a duct 16 is arranged inside the air hole. The duct 16 is made of elastic material, and a one-way air inlet valve 17 is arranged at one end of the duct 16. The compression assembly 7 is arranged on the top of the elastic bladder 3, which is convenient for installation and removal, thus improving the convenience of the device for blocking water in the water supply pipeline.

[0027] On the basis of the above, the rotating mechanism 6 includes a rotating rod 11, a turntable 12 and a rotating handle 13. The two ends of the rotating rod 11 are rotatably connected to the two brackets 5 through bearings. The top of the rotating rod 11 is welded to the bottom of the turntable 12, and the bottom of one side of the turntable 12 is fixedly connected to the bottom of the rotating handle 13.

[0028] On the basis of the above, the compression assembly 7 includes a compression cylinder 14, a piston plate 24, a push rod 23, a first top block 18 and a second top block 19, and the first top block 18 and the second top block 19 cooperate with each other. A plurality of protruding parts are arranged on the opposite sides of the first top block 18 and the second top block 19. The bottom of the second top block 19 is bolted to the top of the push rod 23, and the bottom of the push rod 23 is bolted to the top of the piston plate 24. The piston plate 24 is slidably connected to the inner wall of the compression cylinder 14. A support rod 15 is bolted between the circumferential outer wall of the compression cylinder 14 and the inner wall of the connecting sleeve 2. The bottom of the compression cylinder 14 is bonded to the elastic bladder 3. A through hole 8 is opened between the bottom of the compression cylinder 14 and the elastic bladder 3. The top of the first top block 18 is bolted to the bottom of the rotating rod 11.

[0029] On the basis of the above, sliding grooves are formed on both sides of the inner wall of the connecting sleeve 2, and sliders 21 are slidably connected to the inner walls of the two sliding grooves. A spring 22 is connected between the bottom of the slider 21 and the sliding groove by a bolt, and a connecting shaft 20 is connected between one side of the slider 21 and the second top block 19 by a bolt.

[0030] Example 2. Refer to Figures 1-7 , a water blocking device for repairing urban water supply pipelines. Compared with Example 1, on the basis of Example 1, three equally spaced fixed seats 4 are welded to the circumferential outer wall of the sleeve 1, and a through hole is formed through between one side of the fixed seat 4 and the inner wall of the sleeve 1. A fixing mechanism 9 is arranged between the inside of the through hole and the inside of the sleeve 1, and the fixing mechanism 9 cooperates with the rotating mechanism 6.

[0031] On the basis of the above, the fixing mechanism 9 is composed of a push plate 25 and a pressing pad 26, and the push plate 25 is slidably connected to the inner wall of the through hole. One side of the push plate 25 is adhered to the pressing pad 26. One side position of the pressing pad 26 is an arc surface, and a plurality of anti-slip ridges 27 are arranged on one side of the pressing pad 26. Both the anti-slip ridges 27 and the pressing pad 26 are made of elastic materials, and a transmission component 10 is arranged between the rotating rod 11 and the push plate 25.

[0032] On the basis of the above, the transmission component 10 is composed of a first transmission group and a second transmission group, and the first transmission group and the second transmission group cooperate with each other.

[0033] On the basis of the above, the first transmission group is composed of a runner 28, three first racks 29, three shaft rods 30 and three first gears 31. The runner 28 is fixedly sleeved on the outer wall of the rotating rod 11. Three notches are formed on the circumferential outer wall of the runner 28, and the three notches are connected to the three first racks 29 by bolts. The shape of the first rack 29 is arc-shaped. Both ends of the shaft rod 30 are rotatably connected to the through hole by bearings. The first gear 31 is fixedly sleeved on the outer wall of the shaft rod 30, and the first gear 31 is adapted to the first rack 29.

[0034] On the basis of the above, the second transmission group is composed of a support rod 32, a second gear 35, a second rack 36, two belt pulleys 33 and a belt 34. A rotational connection is formed between the two sides of the support rod 32 opposite to the through-port through bearings. One of the belt pulleys 33 is fixedly sleeved on the outer wall of the support rod 32, and the other belt pulley 33 is fixedly sleeved on the outer wall of the shaft rod 30. A rotational connection is formed between the two belt pulleys 33 and the belt 34. The sizes of the two belt pulleys 33 are different. The second gear 35 is fixedly sleeved on the outer wall of the support rod 32. The second rack 36 meshes with the second gear 35. One side of the second rack 36 is welded to the push plate 25, which is convenient for fixing the equipment, thereby improving the water blocking stability of the equipment and preventing the equipment from slipping out of the inside of the water supply pipe due to the impact of water flow, thus affecting the water blocking of the water supply pipe.

[0035] In summary, by means of the above technical solution of the present invention: when plugging a water supply pipeline, the sleeve 1 and the connecting sleeve 2 are inserted into the interior of the water supply pipeline. After the insertion is completed, the turntable 12 is rotated. The turntable 12 will drive the rotating rod 11 to rotate. At this time, the first top block 18 will rotate synchronously with the rotation of the rotating rod 11. At this time, through the cooperation between the first top block 18 and the second top block 19, the second top block 19 drives the push rod 23 to move up and down reciprocally. At the same time, the piston plate 24 will move up and down reciprocally following the push rod 23. When the piston plate 24 moves reciprocally, it will inflate the interior of the elastic bladder 3. At this time, the elastic bladder 3 will bulge due to the input of gas. The bulging elastic bladder 3 will closely adhere to the interior of the water supply pipeline, thereby plugging the interior of the water supply pipeline through the bulging elastic bladder 3. When the repair is completed, the one-way air inlet valve 17 is removed. At this time, the gas inside the elastic bladder 3 will be discharged through the conduit 16. At this time, the elastic bladder 3 will contract, thus facilitating the removal of the device from the interior of the water supply pipeline. Compared with the existing method of plugging water with rubber materials, this device is more convenient for installation and removal during water plugging, thereby improving the convenience of the device for plugging the water supply pipeline. The first rack 29 will rotate with the rotation of the runner 28. When the first rack 29 contacts the first gear 31 during rotation, at this time, through the meshing between the first rack 29 and the first gear 31, the first gear 31 drives the shaft rod 30 to rotate. When the shaft rod 30 rotates, one of the belt pulleys 33 will rotate with the rotation of the shaft rod 30. At this time, through the cooperation between the two belt pulleys 33 and the belt 34, the support rod 32 rotates. The second gear 35 will rotate with the rotation of the support rod 32. Through the meshing between the second gear 35 and the second rack 36, the second rack 36 drives the push plate 25 to move. At this time, the extrusion pad 26 will press against the inner wall of the water supply pipeline, and the anti-slip ridges 27 increase the friction between the extrusion pad 26 and the inner wall of the water supply pipeline, so as to facilitate the fixation of the device, thereby improving the stability of the device for plugging water and preventing the device from slipping off from the interior of the water supply pipeline due to the impact of water flow, thus affecting the water plugging of the water supply pipeline.

[0036] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A water blocking device for repairing urban water supply pipelines, comprising a sleeve (1), a connecting sleeve (2) and a water blocking mechanism, characterized in that, A fixed shaft is bolted between the bottom of the sleeve (1) and the top of the connecting sleeve (2). The water blocking mechanism is located at the bottom of the connecting sleeve (2). Brackets (5) are bolted to the inner wall of the sleeve (1) at both the top and bottom positions, and a rotating mechanism (6) is arranged between the two brackets (5). The rotating mechanism (6) cooperates with the water blocking mechanism. The water blocking mechanism consists of a compression component (7) and an elastic bladder (3), and the elastic bladder (3) is adhesively bonded to the outer wall of the connecting sleeve (2). An air hole is provided on one side of the top of the elastic bladder (3), and a conduit (16) is arranged inside the air hole. The conduit (16) is made of an elastic material. One end of the conduit (16) is provided with a one-way intake valve (17). The compression component (7) is arranged on the top of the elastic bladder (3). The rotating mechanism (6) includes a rotating rod (11), a turntable (12) and a turning handle (13). The two ends of the rotating rod (11) are rotatably connected to the two brackets (5) through bearings. The top of the rotating rod (11) is welded to the bottom of the turntable (12). The bottom of one side of the turntable (12) is fixedly connected to the bottom of the turning handle (13). The compression component (7) includes a compression cylinder (14), a piston plate (24), a push rod (23), a first top block (18) and a second top block (19), and a cooperation is formed between the first top block (18) and the second top block (19). A plurality of protrusions are arranged on the opposite sides of the first top block (18) and the second top block (19). The bottom of the second top block (19) is bolted to the top of the push rod (23). The bottom of the push rod (23) is bolted to the top of the piston plate (24). The piston plate (24) is slidably connected to the inner wall of the compression cylinder (14). A support rod (15) is bolted between the circumferential outer wall of the compression cylinder (14) and the inner wall of the connecting sleeve (2). The bottom of the compression cylinder (14) is adhesively bonded to the elastic bladder (3). A through hole (8) is provided between the bottom of the compression cylinder (14) and the elastic bladder (3). The top of the first top block (18) is bolted to the bottom of the rotating rod (11). Sliding grooves are provided on both sides of the inner wall of the connecting sleeve (2), and sliders (21) are slidably connected to the inner walls of the two sliding grooves. Springs (22) are bolted between the bottoms of the sliders (21) and the sliding grooves. A connecting shaft (20) is bolted between one side of the slider (21) and the second top block (19).

2. The water blocking device for urban water supply pipeline maintenance according to claim 1, characterized in that, Three equally spaced fixing seats (4) are welded to the circumferential outer wall of the sleeve (1), and a through opening is formed through the side of the fixing seat (4) and the inner wall of the sleeve (1). A fixing mechanism (9) is arranged between the through opening and the inside of the sleeve (1). The fixing mechanism (9) cooperates with the rotating mechanism (6).

3. The water blocking device for urban water supply pipeline maintenance according to claim 2, characterized in that, The fixing mechanism (9) is composed of a push plate (25) and an extrusion pad (26). The push plate (25) is slidably connected to the inner wall of the through opening. One side of the push plate (25) is adhesively bonded to the extrusion pad (26). One side of the extrusion pad (26) is an arc surface. A plurality of anti-slip ridges (27) are arranged on one side of the extrusion pad (26). Both the anti-slip ridges (27) and the extrusion pad (26) are made of elastic materials. A transmission assembly (10) is arranged between the rotating rod (11) and the push plate (25).

4. The water blocking device for urban water supply pipeline maintenance according to claim 3, characterized in that, The transmission assembly (10) is composed of a first transmission group and a second transmission group, and the first transmission group and the second transmission group cooperate with each other.

5. The water blocking device for urban water supply pipeline maintenance according to claim 4, characterized in that, The first transmission group is composed of a runner (28), three first racks (29), three shaft rods (30) and three first gears (31). The runner (28) is fixedly sleeved on the outer wall of the rotating rod (11). Three notches are formed in the circumferential outer wall of the runner (28). The three notches are connected to the three first racks (29) by bolts. The shape of the first rack (29) is arc-shaped. Both ends of the shaft rod (30) are rotatably connected to the through opening through bearings. The first gear (31) is fixedly sleeved on the outer wall of the shaft rod (30). The first gear (31) is adapted to the first rack (29).

6. The water blocking device for urban water supply pipeline maintenance according to claim 5, characterized in that, The second transmission group is composed of a support rod (32), a second gear (35), a second rack (36), two belt pulleys (33) and a belt (34). The support rod (32) is rotatably connected to the opposite sides of the through opening through bearings. One of the belt pulleys (33) is fixedly sleeved on the outer wall of the support rod (32). The other belt pulley (33) is fixedly sleeved on the outer wall of the shaft rod (30). The two belt pulleys (33) are rotatably connected to the belt (34). The sizes of the two belt pulleys (33) are different. The second gear (35) is fixedly sleeved on the outer wall of the support rod (32). The second rack (36) meshes with the second gear (35). One side of the second rack (36) is welded to the push plate (25).

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