Pipeline leak-repairing and replacing device for fire engineering construction

Abstract

The application discloses a pipeline leak repairing and replacing device for fire engineering construction, which comprises a replacing pipe and two leak stopping pipes, the replacing pipe is used for replacing the damaged pipeline cut off, and the leak stopping pipes are used for stopping the cut joint.

Description

Technical Field

[0001] This application relates to the technical field of fire protection engineering, and in particular to a pipe leak repair and replacement device for fire protection engineering construction. Background Technology

[0002] Piping used in fire protection engineering is primarily for firefighting purposes, connecting fire protection equipment and materials, and transporting water for firefighting. Because these pipes are often stationary, they need to be pressure-resistant and corrosion-resistant. When pipes used in fire protection engineering are damaged, the damaged areas must be repaired.

[0003] In related technologies, when constructing pipelines for fire protection engineering, it is necessary to first cut the damaged part of the pipeline, then install a new pipeline to the damaged part and connect it, and then weld the two ends of the new pipeline to the old pipeline to complete the repair of the pipeline for fire protection engineering construction.

[0004] Regarding the aforementioned technologies, the inventors believe that when repairing pipelines used in fire protection engineering construction, water in the pipelines will flow out under pressure, resulting in a waste of water resources. Summary of the Invention

[0005] To alleviate the problem of water waste during the repair of pipelines used in fire protection engineering construction, this application provides a pipeline repair and replacement device for fire protection engineering construction.

[0006] The technical solution for a pipe repair and replacement device for fire protection engineering construction provided in this application is as follows:

[0007] A pipe repair and replacement device for fire protection engineering construction includes a replacement pipe and two plugging pipes. The replacement pipe is used to replace the cut-off damaged pipe, and the two plugging pipes are used to seal the cut seam.

[0008] By employing the above technical solution, when repairing a damaged pipe, first, a plugging pipe is fitted onto the old pipe. Then, a cutting saw is used to cut the damaged area of ​​the old pipe. After cutting one side of the damaged area, a cut seam is created. At this point, the plugging pipe fitted onto the old pipe is slid, causing it to move to the position of the cut seam, thus sealing the cut seam. Then, the other side of the damaged area is cut. After the other side of the damaged area is cut, another plugging pipe is cut, and the other plugging pipe seals the other... The process involves sealing the cut seam, then moving the replacement pipe to the bottom of the old pipe and aligning it with the cut pipe. The replacement pipe is then moved towards the cut pipe while the sealing pipe is slid, separating the cut pipe from the old pipe. The two ends of the replacement pipe are aligned with the ends of the old pipe. Finally, the connection between the replacement pipe and the old pipe is welded, thus completing the repair of the damaged pipe. During this process, sealing the cut seam with the sealing pipe reduces the amount of water flowing out of the old pipe, thereby alleviating the problem of wasting water resources when repairing pipes used in fire protection engineering construction.

[0009] Optionally, the plugging pipe is made of a soft material, has a partition slit, and one end of the plugging pipe is inclined.

[0010] By adopting the above technical solution, when installing the leak-sealing pipe onto the old pipeline, force is first applied to the leak-sealing pipe, causing the leak-sealing pipes on both sides of the partition joint to move away from each other. Then, the leak-sealing pipe is fitted onto the old pipeline through the partition joint, with the inclined end of the leak-sealing pipe facing the damaged location. When cutting the damaged location of the old pipeline, the leak-sealing pipe is pushed towards the damaged location while simultaneously rotating, so that the inclined end of the leak-sealing pipe seals the cut seam on the old pipeline, thereby achieving continuous sealing of the cut seam as it is created. After cutting one side of the damaged location, the other end of the leak-sealing pipe is located at the cut seam. This achieves the effect of facilitating the installation of the leak-sealing pipe onto the old pipeline and further reduces the waste of water resources when repairing pipelines used in fire protection engineering construction.

[0011] Optionally, the plugging pipe is provided with a plurality of locking blocks located on both sides of the partition joint. A locking rod is hinged to the locking block on one side of the partition joint, and a locking nut is threaded onto the locking rod to abut against the locking block located on the other side of the partition joint.

[0012] By adopting the above technical solution, after the plugging pipe is connected to the old pipe, the locking nut is tightened. The locking nut and the locking rod rotate relative to each other. The locking nut moves along the length of the locking rod and moves towards the locking block and presses against the locking block. This causes the plugging pipes on both sides of the separation joint to move towards each other, reducing the diameter of the plugging pipe and thus reducing the gap between the plugging pipe and the old pipe. This further reduces the amount of water flowing out of the old pipe after the plugging pipe seals the cut joint.

[0013] Optionally, an insert plate is fixedly connected to one side wall of the partition joint, and a receiving cavity for accommodating the insert plate is formed on the other side wall of the partition joint.

[0014] By adopting the above technical solution, when the locking bolt is turned, the plugging pipes on both sides of the partition joint move toward each other, thereby causing the insert plate to be inserted into the receiving cavity, thus reducing the situation where the two sides of the partition joint cannot contact each other, causing water in the old pipe to flow out through the cut joint.

[0015] Optionally, the plugging pipe is provided with multiple operating rods to facilitate operation of the plugging pipe.

[0016] By adopting the above technical solution, when the staff rotates and pushes the plugging pipe, the staff can operate the operating rod, which in turn causes the operating rod to move the plugging pipe, thereby facilitating the staff's operation of the plugging pipe.

[0017] Optionally, both ends of the replacement pipe are fitted with sealing pipes, which are located between the replacement pipe and the old pipe.

[0018] By adopting the above technical solution, after aligning the two ends of the replacement pipe with the ends of the old pipe, the sealing pipe is slid and connected to the old pipe, which reduces the gap between the replacement pipe and the old pipe. Water in the old pipe flows out through the gap, making it difficult for workers to weld the replacement pipe.

[0019] Optionally, the sealing tube is sleeved inside the replacement tube, and the replacement tube is provided with two drive springs that drive the two sealing tubes in opposite directions.

[0020] By adopting the above technical solution, when installing the replacement pipe onto the old pipe, the sealing pipe is first driven, which then compresses the drive spring, making the sealing pipe flush with the replacement pipe. After aligning the opening of the replacement pipe with the opening of the old pipe, the sealing pipe moves towards the old pipe under the action of the drive spring, thus positioning the sealing pipe between the old and replacement pipes and sealing the gap between them. Then, the workers weld the connection between the replacement pipe and the old pipe, thereby achieving the effect of facilitating the welding of the replacement pipe and the old pipe together.

[0021] Optionally, a support ring is fixedly connected in the replacement tube to restrict the movement of the drive spring.

[0022] By adopting the above technical solution, when the sealing tube moves toward the interior of the replacement tube, the sealing tube compresses the drive spring. At this time, the support ring limits the drive spring, thereby reducing the occurrence of the two drive springs crossing each other and affecting the driving effect of the drive spring on the sealing tube.

[0023] Optionally, each of the sealing tubes has an annular groove on its circumference, and an elastic sealing tube is disposed in the annular groove.

[0024] By adopting the above technical solution, after the sealing pipe is inserted into the old pipe, the outer circumference of the sealing pipe abuts and presses against the inner wall of the old pipe, thereby increasing the sealing performance of the connection between the sealing pipe and the old pipe and the replacement pipe, and further increasing the sealing performance of the connection between the sealing pipe and the old pipe and the replacement pipe.

[0025] Optionally, the replacement tube is threaded with an internal hexagon screw, and the bottom of the annular groove is provided with multiple mating holes corresponding to the internal hexagon screw. The end of the internal hexagon screw away from the screw head passes through the sealing tube and is inserted into the mating hole.

[0026] By adopting the above technical solution, after pressing the sealing tube into the replacement tube, the Allen screw is turned, causing the Allen screw and the replacement tube to rotate relative to each other. The Allen screw moves towards the inside of the replacement tube, allowing the end of the Allen screw away from the screw head to pass through the sealing tube and insert into the mating hole. This reduces the possibility of the sealing tube moving out of the sealing tube under the action of the drive spring. After the replacement tube is installed, the Allen screw is turned in the opposite direction, causing the end of the Allen screw away from the screw head to disengage from the mating hole. The sealing tube is then inserted into the old pipe under the action of the drive spring. Then, the Allen screw is turned again, allowing it to pass through the sealing tube and insert into the mating hole. This reduces the possibility of the Allen screw head being exposed outside the replacement tube, affecting the pipe's sealing performance.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. By setting up a replacement pipe and two plugging pipes, when repairing a damaged pipe, the plugging pipe is first fitted onto the outside of the old pipe. Then, a cutting saw is used to cut the damaged area of ​​the old pipe, creating a cut slit on one side of the damaged area. The plugging pipe is then slid to the cut slit and seals it. The other side of the damaged area is then cut, creating a cut slit on the other side. The other plugging pipe is then slid to the other cut slit. Finally, the replacement pipe is placed at the bottom of the cut area and aligned with the end of the cut area of ​​the old pipe. The replacement pipe is then moved towards the old pipe while the plugging pipe is slid, causing the cut pipe to detach from the old pipe. The opening of the replacement pipe is aligned with the opening of the old pipe. Finally, the connection between the replacement pipe and the old pipe is welded. This process reduces the amount of water flowing out of the old pipe, thereby reducing water waste when repairing pipes used in fire protection engineering construction.

[0029] 2. By setting one end of the plugging pipe to be inclined and setting a partition joint on the plugging pipe, it is possible to facilitate the installation of the plugging pipe onto the old pipe. On the other hand, as the plugging pipe continues to form the cutting joint, it gradually seals the cutting joint, thereby further reducing the waste of water resources.

[0030] 3. By setting a locking block, locking rod, and locking nut, with the locking nut and locking rod threaded together and the locking rod hinged to the locking block, after the leak-sealing pipe is fitted onto the old pipe, the locking nut is tightened. The locking nut and locking rod rotate relative to each other, and the locking nut moves toward the locking block and applies tension to the locking block, thereby reducing the gap in the expansion joint and the gap between the leak-sealing pipe and the old pipe, thus further reducing water waste. Attached Figure Description

[0031] Figure 1 This is a schematic diagram showing the connection relationship between the replacement pipe and the old pipe in the pipe repair and replacement device of this application embodiment;

[0032] Figure 2 This is a schematic diagram of the leak-sealing pipe in the pipeline repair and replacement device according to an embodiment of this application;

[0033] Figure 3 This is a schematic diagram of the plugging pipe in the pipe repair and replacement device according to an embodiment of this application, mainly showing the insert plate;

[0034] Figure 4 This is a schematic diagram of the replacement pipe in the pipe repair and replacement device according to an embodiment of this application, mainly showing the internal hexagon screw;

[0035] Figure 5 This is a schematic diagram of the overall structure of the lifting component in the pipeline leak repair and replacement device according to an embodiment of this application;

[0036] Figure 6 This is another perspective structural diagram of the lifting component in the pipeline leak repair and replacement device of this application embodiment, mainly showing the connection relationship between the cylinder and the tray;

[0037] Figure 7 This is a schematic diagram of the tray structure in the pipe repair and replacement device according to an embodiment of this application;

[0038] Figure 8 This is a schematic diagram of the tray in the pipe repair and replacement device according to an embodiment of this application, mainly showing the connection relationship between the adjusting plate and the adjusting rod.

[0039] Explanation of reference numerals in the attached drawings: 100, Replacement pipe; 110, Sealing pipe; 111, Annular groove; 112, Sealing pipe; 113, Mating hole; 120, Support ring; 121, Drive spring; 130, Hex socket screw; 131, Hidden groove; 140, Arc-shaped piece; 200, Leak-stopping pipe; 210, Separation joint; 211, Insert plate; 212, Receiving cavity; 220, Locking block; 221, Locking rod; 222, Locking nut; 230, Operating rod; 300, Old pipe; 400, Lifting assembly; 410, Frame; 411, Cylinder; 412, Roller; 420, Tray; 421, Receiving groove; 422, Adjusting rod; 423, Adjusting piece. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0041] This application discloses a pipe repair and replacement device for fire protection engineering construction.

[0042] Reference Figure 1 and Figure 2 A pipe repair and replacement device for fire protection engineering construction includes a replacement pipe 100 for replacing the cut-off damaged pipe and a plugging pipe 200 for sealing the cut seam. The plugging pipe 200 is made of a soft material such as plastic or PVC. There are two plugging pipes 200. One end of each plugging pipe 200 is inclined. Each plugging pipe 200 has a partition 210. The partition 210 is opened in a direction parallel to the axial direction of the plugging pipe 200.

[0043] When repairing the damaged location of the pipeline used in fire protection engineering construction, first pull the plugging pipes 200 on both sides of the partition joint 210 in opposite directions to increase the gap of the partition joint 210. Then, put the plugging pipe 200 through the partition joint 210 onto the old pipeline 300, while making the end of the plugging pipe 200 set at an angle face the damaged location.

[0044] Then, one side of the damaged area is cut. During the cutting process, the plugging tube 200 is pushed towards the damaged area and rotated as the cutting continues. This seals the cut seam. After one side of the damaged area is completely cut, the end of the plugging tube 200 away from the inclined position is positioned at the cut seam, completely sealing it. Next, the other side of the damaged area is cut. While cutting, another plugging tube 200 is pushed towards the damaged area and rotated. Finally, after the other side of the damaged area is cut, the other plugging tube 200 is positioned at the cut seam with its inclined end away from itself.

[0045] Next, move the replacement pipe 100 to the bottom of the cutting position and push it towards the cutting position. Align the two ends of the replacement pipe 100 with the positions of the two cutting seams and continue pushing the replacement pipe 100. At the same time, slide the plugging pipe 200. The cut damaged pipe will fall off, and the replacement pipe 100 will be connected to the old pipe 300. Finally, weld the contact position between the replacement pipe 100 and the old pipe 300 to complete the repair of the damaged position of the fire protection engineering construction pipe. In this process, the amount of water flowing out of the old pipe 300 is reduced, thereby reducing the waste of water resources when repairing the fire protection engineering construction pipe.

[0046] After the plugging pipe 200 is slid to the position of the cutting seam, there is a gap between the inner wall of the plugging pipe 200 and the old pipe 300. As a result, water in the old pipe 300 enters the cutting seam and flows out through the gap between the plugging pipe 200 and the old pipe 300, which causes a waste of water resources.

[0047] Reference Figure 2 and Figure 3To further reduce water waste, four locking blocks 220 are fixedly connected to the plugging pipe 200. Two locking blocks 220 are spaced apart and positioned opposite each other on one side of the partition joint 210, while the other two locking blocks 220 are spaced apart and positioned opposite each other on the other side of the partition joint 210. A locking rod 221 is hinged between the two locking blocks 220 on one side of the partition joint 210. The other end of the locking rod 221 is threaded with a locking nut 222, which abuts against the two locking blocks 220 located on the other side of the partition joint 210. Before installing the plugging pipe 200 onto the old pipe 300, the locking rod 221 needs to be rotated to separate the locking nut 222 from the locking block 220. After fitting the plugging pipe 200 onto the old pipe 300, the locking rod 221 is rotated in the opposite direction, causing the locking nut 222 to move to the same side of the four locking blocks 220. Then, the locking nut 222 is tightened, causing relative rotation between the locking nut 222 and the locking rod 221. The locking nut 222 moves axially along the locking rod 221, locking the pipe. The stop rod 221 abuts against the locking block 220 and applies a pulling force to the locking rod 221. The locking rod 221 drives the locking blocks 220 located on both sides of the partition joint 210 to move towards each other. The gap between the partition joints 210 is reduced, and the diameter of the plugging pipe 200 is reduced. As a result, the inner wall of the plugging pipe 200 abuts against the outer wall of the old pipe 300, which reduces the gap between the plugging pipe 200 and the old pipe 300, thereby further reducing the occurrence of water waste.

[0048] If the inner wall of the plugging pipe 200 comes into contact with the inner wall of the old pipe 300, but the two side walls of the partition joint 210 do not come into contact, water in the old pipe 300 will enter the cutting joint and flow out through the gap of the partition joint 210.

[0049] Reference Figure 2 and Figure 3 In order to reduce the leakage of water from the old pipe 300 through the gap of the partition joint 210, a plug plate 211 is fixedly connected to one side wall of the partition joint 210, and a receiving cavity 212 is opened on the other side wall of the partition joint 210. When the diameter of the plugging pipe 200 decreases, the plug plate 211 is inserted into the receiving cavity 212, thereby sealing the gap of the partition joint 210 and reducing the leakage of water from the old pipe 300 through the gap of the partition joint 210.

[0050] To facilitate pushing and rotating the plugging pipe 200, multiple operating rods 230 are fixedly connected to its circumferential surface. These operating rods 230 are evenly spaced along the circumference of the plugging pipe 200. To push or rotate the plugging pipe 200, the operator simply grasps the operating rod and pushes or rotates it, causing the operating rod 230 to move the plugging pipe 200, thus facilitating its movement.

[0051] After the replacement pipe 100 is installed at the location where the damaged pipe was cut, there may be a gap between the end of the replacement pipe 100 and the end of the old pipe 300, which will cause water in the old pipe 300 to flow out continuously, thus affecting the welding between the replacement pipe 100 and the old pipe 300 by the workers.

[0052] Reference Figure 1 and Figure 4 To ensure proper welding between the replacement pipe 100 and the old pipe 300, both ends of the replacement pipe 100 are coaxially fitted with sealing pipes 110. The sealing pipes 110 are located on the inner wall of the replacement pipe 100, and their outer walls abut against the inner wall of the replacement pipe 100. Each sealing pipe 110 has an annular groove 111 on its inner wall, and a sealing pipe 112 is installed in the annular groove 111. The sealing pipe 112 is elastic and made of rubber material, and its outer wall abuts against the inner wall of the replacement pipe 100. A support ring 120 with a semi-circular cross-section is fixedly connected to the replacement tube 100. A drive spring 121 is fixedly connected to both sides of the support ring 120. The drive spring 121 is set in a one-to-one correspondence with the sealing tube 110. The end of each drive spring 121 away from the support ring 120 abuts against the corresponding sealing tube 110, thereby causing the drive spring 121 to apply a force to the sealing tube 110 away from the direction of the support ring 120.

[0053] When installing the replacement pipe 100 onto the old pipe 300, first press the sealing pipe 110, which is then concealed within the replacement pipe 100. Next, install the replacement pipe 100 onto the old pipe 300. After aligning the opening of the replacement pipe 100 with the opening of the old pipe 300, the sealing pipe 110 moves towards the interior of the old pipe 300 under the force of the drive spring 121. After the force of the drive spring 121 is released, the sealing pipe 110 is positioned between the old pipe 300 and the replacement pipe 100. This serves two purposes: firstly, it provides a temporary connection between the replacement pipe 100 and the old pipe 300; secondly, it seals the gap between the replacement pipe 100 and the old pipe 300, reducing the possibility of water leakage from the old pipe 300 and thus ensuring that workers can perform normal welding between the replacement pipe 100 and the old pipe 300 as much as possible.

[0054] In addition, after the sealing tube 110 is inserted into the old pipe 300, the sealing tube 112 comes into contact with and is pressed tightly against the old pipe 300, that is, the sealing tube 112 further seals the gap between the old pipe 300 and the replacement tube 100, thereby further increasing the sealing performance of the connection between the old pipe 300 and the replacement tube 100.

[0055] When the workers connect the replacement pipe 100 to the old pipe 300, they need to continuously press the sealing pipe 110 to ensure that the sealing pipe 110 is hidden inside the replacement pipe 100 as much as possible, which makes the workload of the workers quite large.

[0056] Reference Figure 1 and Figure 4 To reduce the workload of workers installing the replacement pipe 100, both ends of the replacement pipe 100 are threaded with multiple hexagon socket screws 130. The hexagon socket screws 130 are evenly distributed around the circumference of the replacement pipe 100. The bottom of the annular groove 111 is provided with mating holes 113 corresponding to the state when the sealing pipe 110 is inserted into the old pipe 300 and when the sealing pipe 110 is completely hidden in the replacement pipe 100. The replacement pipe 100 is provided with hidden grooves 131 for hiding the screw heads of the multiple hexagon socket screws 130. After the worker presses the sealing tube 110 into the replacement tube 100, he turns the hex socket screw 130. The hex socket screw 130 and the replacement tube 100 rotate relative to each other, causing the end of the hex socket screw 130 away from the screw head to pass through the sealing tube 112 and insert into the corresponding mating hole 113. At this time, the mating of the hex socket screw 130 and the mating hole 113 limits the sealing tube 110, reducing the need for the worker to continuously press the sealing tube 110, thereby reducing the workload of the worker.

[0057] After installing the replacement tube 100, reverse the rotation of the hex socket screw 130. The hex socket screw 130 separates from the corresponding mating hole 113. Under the action of the drive spring 121, the sealing tube 110 is inserted into the old pipe 300. Then, the hex socket screw 130 is turned again, passing through the sealing tube 112 and inserting into the corresponding mating hole 113, with the screw head of the hex socket screw 130 hidden in the mating hole 113. Alternatively, after hiding the screw head of the hex socket screw 130 in the mating hole 113, the gap between the screw head of the hex socket screw 130 and the hidden groove 131 can be welded, or sealant can be applied to the screw head of the hex socket screw 130 before screwing it into the hidden groove 131. Both methods can increase the sealing effect between the screw head of the hex socket screw 130 and the hidden groove 131.

[0058] After connecting the replacement pipe 100 to the old pipe 300, the operator needs to tighten the hex socket screw 130. At this time, the operator needs to continuously apply lifting force to the replacement pipe 100, which can easily cause the operator to feel fatigued.

[0059] Reference Figure 1 and Figure 4To reduce worker fatigue, both ends of the replacement pipe 100 are fixedly connected to arc-shaped plates 140, the curvature of which corresponds to the outer wall of the old pipe 300. When the replacement pipe 100 is installed, and the arc-shaped plates 140 contact the outer wall of the old pipe 300, the opening of the replacement pipe 100 aligns with the opening of the old pipe 300, thus positioning the replacement pipe 100. Then, rotating the replacement pipe 100 causes the arc-shaped plates 140 to rotate, bringing them to the top of the old pipe 300. At this point, the arc-shaped plates 140 support the replacement pipe 100, allowing workers to stop applying lifting force and further reducing worker fatigue.

[0060] Reference Figure 5 and Figure 6 To further facilitate the repair of pipes used in fire protection engineering construction, the pipe repair and replacement device also includes a lifting assembly 400. The lifting assembly 400 includes a frame 410 and a tray 420 that slides along the direction of approaching or away from the bottom of the frame 410. The outer circumference of the tray 420 corresponding to the replacement pipe 100 is set in an arc shape. Multiple cylinders 411 are installed on the frame 410. The cylinders 411 are located at the bottom of the tray 420. The cylinder body of each cylinder 411 is fixedly connected to the frame 410, and the piston rod of each cylinder 411 is fixedly connected to the bottom of the tray 420.

[0061] When installing the leak-sealing pipe 200 outside the old pipe 300, place the frame 410 at the bottom of the old pipe 300 and face the damaged position, place the leak-sealing pipe 200 on the tray 420, then apply tension to both sides of the partition joint 210 and start the cylinder 411. The cylinder 411 drives the tray 420, which moves the leak-sealing pipe 200 toward the old pipe 300. During this process, there is no need for workers to manually lift the leak-sealing pipe 200, which further facilitates the repair of pipes used in fire protection engineering construction.

[0062] When connecting the replacement pipe 100 to the old pipe 300, the replacement pipe 100 is placed on the tray 420, and the cylinder 411 is activated. The cylinder 411 drives the tray 420, which in turn moves the replacement pipe 100 toward the old pipe 300. During this process, there is no need for staff to manually lift the replacement pipe 100, which further facilitates the repair of pipes used in fire protection engineering construction.

[0063] Reference Figure 5 and Figure 6To facilitate the movement of the frame 410 by the staff, multiple rolling wheels 412 are rotatably connected to the bottom of the frame 410. When moving the frame 410, the staff only needs to push the frame 410, and the rolling wheels 412 will roll relative to the ground, thus achieving the effect of facilitating the movement of the frame 410 by the staff.

[0064] If the rack 410 is not horizontal, the replacement tube 100 placed on the tray 420 will be tilted. At this time, the staff needs to adjust the replacement tube 100, and then the staff needs to lift and adjust the replacement tube 100.

[0065] Reference Figure 7 and Figure 8 To reduce the need for staff to lift and adjust the replacement tube 100, two receiving slots 421 are provided on the end face of the tray 420 away from the bottom of the frame 410. The two receiving slots 421 are located at both ends of the tray 420. Each receiving slot 421 is provided with an adjusting piece 423. Two adjusting rods 422 are passed through the tray 420 corresponding to the two adjusting pieces 423. The end of the adjusting rod 422 located outside the tray 420 is bent in the direction away from the bottom of the frame 410. The end of the adjusting rod 422 located in the receiving slot 421 is fixedly connected to the end of the adjusting piece 423. The connection positions of the two adjusting rods 422 and the adjusting pieces 423 are respectively located at the ends of the two adjusting pieces 423 that are close to each other. When adjusting the replacement tube 100, the operator only needs to press the adjusting rod 422. The adjusting rod 422 drives the adjusting plate 423 to move. The adjusting plate 423 lifts the replacement tube 100 and makes the replacement tube 100 horizontal. During this process, the operator does not need to lift and adjust the replacement tube 100 by hand, thus reducing the occurrence of situations where the operator needs to lift and adjust the replacement tube 100.

[0066] The implementation principle of the pipe repair and replacement device for fire protection engineering construction in this embodiment is as follows: When repairing the pipe for fire protection engineering construction, the frame 410 is first pushed to the bottom of the damaged pipe, and then the plugging pipe 200 is placed on the tray 420. The worker applies a force to both sides of the gap 210 of the plugging pipe 200 to increase the gap. The cylinder 411 is activated, and the cylinder 411 drives the tray 420. The tray 420 moves the plugging pipe 200 toward the old pipe 300. The movement allows the plugging pipe 200 to be fitted onto the outside of the old pipe 300 through the partition 210, with the inclined end of the plugging pipe 200 facing the damaged position of the old pipe 300. The locking rod 221 is rotated, causing the locking nut 222 to rotate to the same side of the multiple locking blocks 220. The locking nut 222 is then tightened, causing it to abut against the locking block 220 and reduce the gap in the partition 210. The insert plate 211 is inserted into the receiving cavity 212, and the inner wall of the plugging pipe 200 abuts against the outer wall of the old pipe 300.

[0067] Workers then use a cutting saw to cut the damaged pipe. While cutting, they push and rotate the plugging pipe 200 towards the damaged area, sealing the cut and reducing water outflow from the old pipe 300. When the cut forms a closed loop around the old pipe 300, the end of the plugging pipe 200 away from the inclined section seals the cut, ultimately sealing the cut grooves on both sides of the damaged area with two plugging pipes 200.

[0068] Then, place the replacement tube 100 on the tray 420 and align it with the cut pipe position. Start the cylinder 411, which drives the tray 420. When the replacement tube 100 moves and comes into contact with the plugging tube 200, continue to push the plugging tube 200. The plugging tube 200 separates from the old pipe 300, and the cut pipe detaches from the old pipe 300, causing the arc-shaped piece 140 to come into contact with the old pipe 300. At this time, the opening of the replacement tube 100 is aligned with the opening of the old pipe 300. Then, rotate the replacement tube 100 so that the arc-shaped piece 140 rotates to the top of the old pipe 300. Then, rotate the hexagonal screw 130 so that it disengages from the mating hole 113. The plugging tube 110 is inserted into the old pipe 300 under the action of the drive spring 121. Then, rotate the hexagonal screw 130 so that it passes into the corresponding mating hole 113. Finally, the staff welded the contact points between the replacement pipe 100 and the old pipe 300. This process reduced the amount of water flowing out of the old pipe 300, thereby alleviating the problem of resource waste when repairing pipes used in fire protection engineering.

[0069] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pipe leak repair and replacement device for fire protection engineering construction, characterized in that: The system includes a replacement pipe (100) and two plugging pipes (200). The replacement pipe (100) is used to replace the cut-off damaged pipe, and the two plugging pipes (200) are used to seal the cut seam. The plugging pipes (200) are made of soft material and have a partition seam (210). One end of the plugging pipe (200) is inclined, and multiple locking blocks (220) are respectively located on both sides of the partition seam (210). A locking rod (221) is hinged to one side of the locking block (220), and a locking nut (222) is threaded onto the locking rod (221) to abut against the locking block (220) located on the other side of the partition (210). A plate (211) is fixedly connected to one side wall of the partition (210), and a receiving cavity (212) for accommodating the plate (211) is opened on the other side wall of the partition (210). The plugging pipe (200) is provided with multiple tubes to facilitate the insertion of the plugging pipe (200). The operating lever (230) is used for operation. Both ends of the replacement tube (100) are fitted with sealing tubes (110). The sealing tubes (110) are located between the replacement tube (100) and the old pipe (300). The sealing tubes (110) are fitted inside the replacement tube (100). The replacement tube (100) is provided with two drive springs (121) that drive the two sealing tubes (110) in opposite directions. The replacement tube (100) is fixedly connected to limit the drive springs (121). The moving support ring (120) has an annular groove (111) on the circumference of each of the sealing tubes (110). An elastic sealing tube (112) is provided in the annular groove (111). A hexagon socket screw (130) is threaded onto the replacement tube (100). A plurality of mating holes (113) are provided on the bottom of the annular groove (111) corresponding to the hexagon socket screw (130). The end of the hexagon socket screw (130) away from the screw head passes through the sealing tube (112) and is inserted into the mating hole (113).

Images