A pressure pipe plugging device

Abstract

The application relates to a pressure pipeline plugging device and relates to the technical field of pipeline plugging. The plugging device comprises a pipeline body, the outer side wall of the pipeline body is provided with a first connecting rod and a second connecting rod, a locking assembly is arranged between the first connecting rod and the second connecting rod, the locking assembly is used for abutting the end, where the first connecting rod and the second connecting rod are close to each other, to make the first connecting rod and the second connecting rod abut on the pipeline body, the side, where the first connecting rod and the second connecting rod are close to the pipeline body, is provided with a plugging cavity, the plugging cavities on the first connecting rod and the second connecting rod are communicated, the plugging cavities cover the broken part on the pipeline body, the side, where the second connecting rod is away from the pipeline body, is provided with an adding groove for adding a leak repairing welding adhesive to the inner wall of the plugging cavity, and the second connecting rod is provided with a sealing piece for plugging the inner wall of the adding groove. The application has the effect of improving the plugging effect of the broken part of the pressure pipeline.

Description

Technical Field

[0001] This application relates to the field of pipeline leak sealing technology, and in particular to a pressure pipeline leak sealing device. Background Technology

[0002] Pressure pipelines are pipelines that can withstand a certain internal or external pressure. Pressure pipelines have the functions of conveying, distributing, mixing, separating, discharging, metering, controlling and stopping fluid flow.

[0003] After long-term use, pressure pipelines are prone to rupture due to various internal and external environmental factors, such as corrosion and external impacts, which can lead to leaks during the pipeline's transport process. Traditional leak repair methods often involve directly applying sealant to the rupture. However, once the sealant has solidified, it is directly exposed to the air, which can cause oxidation over time. This reduces the effectiveness of sealing the leak at the rupture point and thus needs improvement. Summary of the Invention

[0004] To improve the sealing effect at the rupture point of a pressure pipeline, this application provides a pressure pipeline sealing device.

[0005] The pressure pipeline sealing device provided in this application adopts the following technical solution: A pressure pipeline leak sealing device includes a pipeline body. A first connecting rod and a second connecting rod are disposed on the outer wall of the pipeline body. A locking assembly is disposed between the first and second connecting rods. The locking assembly is used to abut the ends of the first and second connecting rods close to each other, so that the first and second connecting rods are pressed tightly against the pipeline body. A leak sealing cavity is formed on the side of the first and second connecting rods closest to the pipeline body. The leak sealing cavities on the first and second connecting rods are interconnected. The leak sealing cavity covers the crack in the pipeline body. An adding groove is provided on the side of the second connecting rod away from the pipeline body for adding sealing adhesive to the inner wall of the leak sealing cavity. A sealing element is provided on the second connecting rod for sealing the inner wall of the adding groove.

[0006] By adopting the above technical solution, the sealing cavities on the first and second connecting rods cover the rupture on the pipe body. Then, a locking assembly connects the two connecting rods at their closest points, ensuring they are firmly pressed against the pipe body. Next, sealing adhesive is added to the sealing cavity through an insertion slot. Once the inner wall of the sealing cavity is filled with sealing adhesive, a sealing element blocks the inner wall of the insertion slot. Thus, after the sealing adhesive solidifies, it seals the rupture on the pipe body. Furthermore, the first and second connecting rods protect the solidified sealing adhesive, reducing the possibility of oxidation of the welded surface on the pipe body due to direct exposure to air, and improving the sealing effect at the rupture point of the pressure pipeline.

[0007] Preferably, the locking assembly includes a positioning block, a locking plate, a guide block, a drive rod, and a fixing member. The positioning block is disposed at the end of the first connecting rod. The second connecting rod has a positioning groove for the positioning block to be inserted at one end near the first connecting rod. The side wall of the first connecting rod has an installation groove for the locking plate to be rotatably embedded. The guide block is disposed on the inner wall of the installation groove. The locking plate has a guide hole for the guide block to slide. The side of the second connecting rod near the first connecting rod has a locking groove for the end of the locking plate to be inserted. The drive rod is disposed on the side wall of the locking plate. The first connecting rod has a drive groove for the drive rod to rotate. The fixing member is used to fix the drive rod to the first connecting rod.

[0008] By adopting the above technical solution, after the first connecting rod and the second connecting rod are brought close to each other at one end, the positioning block is inserted into the inner wall of the positioning groove. Then, by rotating the driving rod along the inner wall of the driving groove, the guide block is moved along the inner wall of the guide hole, so that the end of the locking plate is inserted into the inner wall of the locking groove. Then, the driving rod is fixed to the first connecting rod by the fixing component, so that the first connecting rod and the second connecting rod are fixed close to each other at one end, and thus the first connecting rod and the second connecting rod are pressed against the pipe body.

[0009] Preferably, the fixing component includes a fixing screw and a fixing nut. The fixing screw is disposed on the side wall of the first connecting rod. A drive hole for the fixing screw to slide is provided through the drive rod. The fixing nut is threaded onto the fixing screw. The fixing nut and the drive rod abut against each other on their adjacent sides.

[0010] By adopting the above technical solution, when the drive rod rotates, causing the locking plate to rotate, the fixing screw rotates synchronously along the inner wall of the drive hole. After the end of the locking plate is inserted into the inner wall of the locking groove, the fixing nut rotates along the fixing screw, causing the fixing nut and the drive rod to abut against each other on their respective sides. This improves the stability of the end of the locking plate inserted into the inner wall of the locking groove, and further improves the stability of the connection between the first connecting rod and the second connecting rod.

[0011] Preferably, the end of the positioning block away from the first connecting rod has a guide surface that facilitates easy insertion into the inner wall of the positioning groove.

[0012] By adopting the above technical solution and setting the guide surface, the frictional resistance of the positioning block being inserted into the inner wall of the positioning groove is reduced, thereby enabling the positioning block to be quickly and conveniently inserted into the inner wall of the positioning groove, which in turn facilitates the workers to quickly install the first connecting rod and the second connecting rod.

[0013] Preferably, both the first connecting rod and the second connecting rod are provided with sliding holes. The sliding hole of the first connecting rod communicates with the sealing cavity on the first connecting rod, and the sliding hole of the second connecting rod communicates with the sealing cavity on the second connecting rod. An insert rod is slidably connected to the inner wall of the sliding hole. Both the first connecting rod and the second connecting rod are provided with fasteners. The fasteners are used to drive the insert rod to slide along the length direction of the inner wall of the sliding hole.

[0014] By adopting the above technical solution, after the sealing adhesive inside the sealing cavity solidifies and covers the crack on the pipe body, the fastener drives the insertion rod to slide along the length of the inner wall of the sliding hole, so that the end of the insertion rod presses against the solidified sealing adhesive inside the sealing cavity, thereby improving the stability of the sealing adhesive on the crack on the pipe body.

[0015] Preferably, the fastener includes a control rod, a docking rod, and a fastening tube. Both the first connecting rod and the second connecting rod have control grooves for the control rod to slide. The first connecting rod and the second connecting rod have receiving cavities for the docking rod to be embedded in. One end of the docking rod is rotatably connected to the side wall of the control rod, and the other end of the docking rod is rotatably connected to the side wall of the insertion rod. The fastening tube is threaded to the side wall of the control rod. The control groove has a fastening thread groove inside, and the end of the fastening tube is threaded to the inner wall of the fastening thread groove.

[0016] By adopting the above technical solution, when the control rod moves along the inner wall of the control groove toward the side away from the pipe body, the control rod drives the insertion rod to move through the connecting rod, so that the insertion rod moves along the length direction of the inner wall of the sliding hole toward the side closer to the pipe body. When the end of the insertion rod is pressed against the solidified sealing adhesive, the fastening tube is rotated along the side wall of the control rod, so that the end of the fastening tube is threadedly connected to the inner wall of the fastening thread groove, thereby fixing the control rod to the inner wall of the control groove, and then fixing the insertion rod to the inner wall of the sliding hole, effectively improving the stability of the end of the insertion rod pressed against the solidified sealing adhesive.

[0017] Preferably, the first connecting rod and the second connecting rod each have a plurality of sliding holes, the number of the insert rods and the number of sliding holes are the same, the insert rods and the sliding holes are arranged in a one-to-one correspondence, an auxiliary rod is provided between adjacent insert rods on the first connecting rod and the second connecting rod, and a clamping member is provided between the auxiliary rod and the insert rod, the mating rod on the first connecting rod is rotatably connected to one of the insert rods on the first connecting rod, and the mating rod on the second connecting rod is rotatably connected to one of the insert rods on the second connecting rod.

[0018] By adopting the above technical solution, several inserts are provided on both the first and second connecting rods, so that the ends of the inserts press against the side wall of the solidified sealing adhesive, thereby further improving the stability of the solidified sealing adhesive in sealing the cracks on the pipe body.

[0019] Preferably, the clamping member includes a clamping rod and a first elastic member. The end of the insertion rod away from the pipe body is provided with a moving hole for the clamping rod to slide. One end of the first elastic member is provided at the end of the clamping rod, and the other end of the first elastic member is provided in the inner wall of the moving hole. The end of the auxiliary rod is provided with a clamping groove for the end of the clamping rod to be inserted.

[0020] By adopting the above technical solution, when the end of the auxiliary rod is attached to the side wall of the insertion rod, the clamping rod is released, so that the clamping rod moves along the length direction of the inner wall of the moving hole under the action of the first elastic element, so that the end of the clamping rod is inserted into the inner wall of the clamping groove, thereby fixing the auxiliary rod and the insertion rod.

[0021] Preferably, each of the inserts is provided with a protective pad at the end near the pipe body.

[0022] By adopting the above technical solution, the protective pad is placed at the end of the plug rod close to the pipe body, thereby reducing the wear caused by the plug rod directly contacting the solidified sealant, and further extending the service life of the sealant.

[0023] Preferably, the sealing element includes a sealing rod, a sealing ring, a clamping rod, a dovetail block, and a second elastic element. The sealing rod is inserted into the inner wall of the adding slot, the sealing ring is disposed on the side wall of the sealing rod, the inner wall of the adding slot has a sealing groove for the sealing ring to be embedded, the clamping rod and the dovetail block are fixedly connected, the side wall of the sealing rod has a clamping groove for the end of the clamping rod to be inserted, the second connecting rod has a dovetail groove on the side away from the pipe body for the dovetail block to slide, one end of the second elastic element is disposed on the side wall of the dovetail block, and the other end of the second elastic element is disposed on the inner wall of the dovetail groove.

[0024] By adopting the above technical solution, when the sealing rod is inserted into the inner wall of the adding slot and the sealing ring is embedded in the inner wall of the sealing groove, the dovetail block slides along the length direction of the inner wall of the dovetail groove under the action of the second elastic element, so that the end of the clamping rod is inserted into the inner wall of the clamping groove, thereby sealing the inner wall of the adding slot.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The sealing cavities on the first and second connecting rods cover the rupture on the pipe body. The locking assembly then connects the two connecting rods at their closest points, ensuring they are firmly pressed against the pipe body. Repairing adhesive is then added to the sealing cavities through the insertion slots. Once the sealing cavity is filled with adhesive, the insertion slots are sealed. As the adhesive solidifies, it seals the rupture on the pipe body. The first and second connecting rods also protect the solidified adhesive, reducing the likelihood of oxidation due to direct exposure of the welded surface to air and improving the sealing effect of the pressure pipe rupture.

[0026] 2. When the control rod moves along the inner wall of the control groove toward the side away from the pipe body, the control rod drives the insertion rod to move through the connecting rod, so that the insertion rod moves along the length direction of the inner wall of the sliding hole toward the side closer to the pipe body. When the end of the insertion rod is pressed against the solidified sealing adhesive, the fastening tube is rotated along the side wall of the control rod, so that the end of the fastening tube is threaded into the inner wall of the fastening thread groove, thereby fixing the control rod to the inner wall of the control groove, and then fixing the insertion rod to the inner wall of the sliding hole, effectively improving the stability of the end of the insertion rod pressed against the solidified sealing adhesive. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a pressure pipeline sealing device according to an embodiment of this application.

[0028] Figure 2 This is a cross-sectional view used in the embodiments of this application to illustrate the internal structure of the first connecting rod and the second connecting rod.

[0029] Figure 3 yes Figure 2 Enlarged view of structure A in the middle.

[0030] Figure 4 yes Figure 2 Enlarged view of the B structure.

[0031] Figure 5 This is a cross-sectional view used to illustrate the structure of the clamping member in the embodiments of this application.

[0032] Explanation of reference numerals in the attached figures: 1. Pipe body; 2. First connecting rod; 21. Leak-sealing cavity; 22. Adding slot; 221. Sealing groove; 23. Mounting groove; 24. Drive groove; 25. Sliding hole; 26. Control groove; 261. Fastening thread groove; 27. Receiving cavity; 28. Dovetail groove; 3. Second connecting rod; 31. Positioning groove; 32. Locking groove; 4. Locking assembly; 41. Positioning block; 411. Guide surface; 42. Locking plate; 421. Guide hole; 43. Guide block; 44. Drive rod; 44 1. Drive hole; 45. Fixing component; 451. Fixing screw; 452. Fixing nut; 5. Sealing component; 51. Sealing rod; 511. Clamping groove; 52. Sealing ring; 53. Clamping rod; 54. Dovetail block; 55. Second elastic component; 6. Insert rod; 61. Protective pad; 62. Auxiliary rod; 621. Abutting groove; 63. Moving hole; 7. Fastener; 71. Control rod; 72. Connecting rod; 73. Fastening tube; 8. Abutting component; 81. Abutting rod; 82. First elastic component. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0034] This application discloses a pressure pipeline leak sealing device. (Refer to...) Figure 1 The pressure pipeline sealing device includes a pipeline body 1, and a first connecting rod 2 and a second connecting rod 3 are provided on the outer side wall of the pipeline body 1. A locking component 4 is provided between the first connecting rod 2 and the second connecting rod 3. The locking component 4 is used to abut one end of the first connecting rod 2 and the second connecting rod 3 so that the first connecting rod 2 and the second connecting rod 3 are pressed against the outer side wall of the pipeline body 1.

[0035] Reference Figure 2 and Figure 3 Both the first connecting rod 2 and the second connecting rod 3 have a sealing cavity 21 on the side near the pipe body 1. The sealing cavities 21 on the first connecting rod 2 and the second connecting rod 3 are connected and cover the crack on the pipe body 1. The side of the second connecting rod 3 away from the pipe body 1 is provided with an adding groove 22 for adding repair adhesive to the inner wall of the sealing cavity 21. The second connecting rod 3 is provided with a sealing element 5 for blocking the inner wall of the adding groove 22.

[0036] Reference Figure 1 , Figure 2 and Figure 3The first connecting rod 2 and the second connecting rod 3 are fixed at their closest points by the locking assembly 4, so that the first connecting rod 2 and the second connecting rod 3 are pressed against the pipe body 1, and the sealing cavities 21 on the first connecting rod 2 and the second connecting rod 3 are connected. Then, the sealing adhesive is added to the sealing cavities 21 on the first connecting rod 2 and the second connecting rod 3 through the adding slot 22. Finally, the inner wall of the adding slot 22 is blocked by the sealing member 5, so that the sealing adhesive can seal the leak at the crack on the pipe body 1 after it solidifies. At this time, the first connecting rod 2 and the second connecting rod 3 protect the solidified sealing adhesive, reducing the possibility of the solidified sealing adhesive being directly exposed to the air and oxidizing, effectively improving the sealing effect at the crack of the pressure pipeline.

[0037] Reference Figure 3 The sealing element 5 includes a sealing rod 51, a sealing ring 52, a clamping rod 53, a dovetail block 54, and a second elastic element 55. The sealing rod 51 is inserted into the inner wall of the adding slot 22, and the sealing ring 52 is glued to the side wall of the sealing rod 51. In this embodiment, the sealing ring 52 is made of rubber. The inner wall of the adding slot 22 has a sealing groove 221 for the sealing ring 52 to be embedded. The clamping rod 53 and the dovetail block 54 are welded and fixed. The second connecting rod 3 has a dovetail groove 28 on the side away from the pipe body 1 for the dovetail block 54 to slide. One end of the second elastic element 55 is welded to the side wall of the dovetail block 54, and the other end of the second elastic element 55 is welded to the inner wall of the dovetail groove 28. In this embodiment, the second elastic element 55 is a spring. The side wall of the sealing rod 51 has a clamping groove 511 for the end of the clamping rod 53 to be inserted.

[0038] Reference Figure 2 and Figure 3 After the sealing cavity 21 on the first connecting rod 2 and the second connecting rod 3 is filled with the sealing adhesive, the sealing rod 51 is inserted into the addition slot 22, and the sealing ring 52 is embedded in the inner wall of the sealing groove 221. Then, under the action of the second elastic element 55, the dovetail block 54 moves along the length of the inner wall of the dovetail groove 28 toward the side close to the sealing rod 51, so that the clamping rod 53 moves synchronously until the end of the clamping rod 53 is inserted into the inner wall of the clamping groove 511. Thus, the sealing rod 51 is fixed to the inner wall of the addition slot 22, thereby improving the stability of the sealing rod 51 in sealing the addition slot 22.

[0039] Reference Figure 4The locking assembly 4 includes a positioning block 41, a locking plate 42, a guide block 43, a drive rod 44, and a fixing member 45. The positioning block 41 is welded to the end of the first connecting rod 2. The second connecting rod 3 has a positioning groove 31 at the end near the first connecting rod 2 for the end of the positioning block 41 to be inserted into. The end of the positioning block 41 away from the first connecting rod 2 has a guide surface 411 for easy insertion into the inner wall of the positioning groove 31. The side wall of the first connecting rod 2 has a mounting groove 23 for the locking plate 42 to rotate. The guide block 43 is welded to the inner wall of the mounting groove 23. The locking plate 42 has a guide hole 421 for the guide block 43 to slide. The side of the second connecting rod 3 near the first connecting rod 2 has a locking groove 32 for the end of the locking plate 42 to be inserted into. The drive rod 44 is welded to the side wall of the locking plate 42. The first connecting rod 2 has a drive groove 24 for the drive rod 44 to rotate. The fixing member 45 is used to fix the drive rod 44 to the first connecting rod 2.

[0040] Reference Figure 4 The fixing component 45 includes a fixing screw 451 and a fixing nut 452. The fixing screw 451 is welded to the side of the first connecting rod 2 away from the pipe body 1. The driving rod 44 has a driving hole 441 through which the fixing screw 451 slides. The fixing nut 452 is threaded onto the fixing screw 451. The fixing nut 452 and the driving rod 44 abut against each other on their respective sides.

[0041] Reference Figure 4 The first connecting rod 2 and the second connecting rod 3 are brought close together at their respective ends, so that the positioning block 41 is inserted into the inner wall of the positioning groove 31. Then, the driving rod 44 is rotated along the inner wall of the driving groove 24. At this time, the guide block 43 moves along the inner wall of the guide hole 421 and the fixing screw 451 moves along the inner wall of the driving hole 441 until the end of the locking plate 42 is inserted into the inner wall of the locking groove 32. Finally, the fixing nut 452 is rotated along the fixing screw 451 so that the fixing nut 452 and the driving rod 44 are brought close together at their respective ends. This improves the stability of the end of the locking plate 42 inserted into the inner wall of the locking groove 32, and thus improves the stability of the first connecting rod 2 and the second connecting rod 3 pressed against the pipe body 1.

[0042] Reference Figure 2Each of the first connecting rod 2 and the second connecting rod 3 has several sliding holes 25 on the side away from the pipe body 1. In this embodiment, each of the first connecting rod 2 and the second connecting rod 3 has three sliding holes 25. The inner wall of each sliding hole 25 is slidably connected to an insert rod 6 along the length direction. The end of each insert rod 6 near the pipe body 1 is glued with a protective pad 61. In this embodiment, the protective pad 61 is made of rubber. The several sliding holes 25 on the first connecting rod 2 are all connected to the leak-sealing cavity 21 on the first connecting rod 2, and the several sliding holes 25 on the second connecting rod 3 are all connected to the leak-sealing cavity 21 on the second connecting rod 3. An auxiliary rod 62 is provided between adjacent insert rods 6 on the first connecting rod 2 and the second connecting rod 3. A clamping member 8 is provided between the auxiliary rod 62 and the insert rod 6. The clamping member 8 is used to fix the auxiliary rod 62 and the insert rod 6. Fasteners 7 are provided on the first connecting rod 2 and the second connecting rod 3. The fasteners 7 are used to drive the insert rod 6 to slide along the length direction of the inner wall of the corresponding sliding hole 25.

[0043] Reference Figure 5 The clamping member 8 includes a clamping rod 81 and a first elastic member 82. The end of the insertion rod 6 away from the pipe body 1 is provided with a moving hole 63 for the clamping rod 81 to slide. In this embodiment, the clamping rod 81 is an L-shaped rod. One end of the first elastic member 82 is welded to the end of the clamping rod 81, and the other end of the first elastic member 82 is welded to the inner wall of the moving hole 63. In this embodiment, the first elastic member 82 is a spring. The end of the auxiliary rod 62 is provided with a clamping groove 621 for the end of the clamping rod 81 to be inserted into. The stability of the end of the clamping rod 81 inserted into the inner wall of the clamping groove 621 is improved by the first elastic member 82, thereby fixing the auxiliary rod 62 and the insertion rod 6.

[0044] Reference Figure 2 The fastener 7 includes a control rod 71, a mating rod 72, and a fastening tube 73. Both the first connecting rod 2 and the second connecting rod 3 have control grooves 26 for the control rod 71 to slide in. Both the first connecting rod 2 and the second connecting rod 3 have receiving cavities 27 for the mating rod 72 to be embedded in. One end of the mating rod 72 is hinged to the control rod 71, and the other end of the mating rod 72 is hinged to the side wall of one of the insert rods 6 on the first connecting rod 2 or the second connecting rod 3. The fastening tube 73 is threaded to the side wall of the control rod 71. The control groove 26 has a fastening threaded groove 261 inside, and the end of the fastening tube 73 is threaded into the inner wall of the fastening threaded groove 261.

[0045] Reference Figure 2 and Figure 5When the control rod 71 moves along the inner wall of the control groove 26 toward the side away from the pipe body 1, the control rod 71 drives the connected insertion rod 6 to move through the docking rod 72, and then drives all the insertion rods 6 located on the first connecting rod 2 or the second connecting rod 3 to move along the length direction of the inner wall of the corresponding sliding hole 25 toward the side closer to the pipe body 1 through the auxiliary rod 62; when the protective pad 61 at the end of the insertion rod 6 is pressed against the solidified sealing adhesive, the fastening tube 73 is rotated along the peripheral wall of the control rod 71, so that the end of the fastening tube 73 is threaded into the inner wall of the fastening thread groove 261; thereby fixing the control rod 71 to the inner wall of the control groove 26, and further fixing the insertion rod 6 to the inner wall of the sliding hole 25, effectively improving the stability of the end of the insertion rod 6 pressed against the solidified sealing adhesive.

[0046] The implementation principle of a pressure pipeline sealing device according to an embodiment of this application is as follows: the ends of the first connecting rod 2 and the second connecting rod 3 that are close to each other are abutted together, so that the positioning block 41 is inserted into the inner wall of the positioning groove 31. Then, by rotating the driving rod 44 along the inner wall of the driving groove 24, the guide block 43 moves along the inner wall of the guide hole 421 and the fixing screw 451 moves along the inner wall of the driving hole 441 until the end of the locking plate 42 is inserted into the inner wall of the locking groove 32. Finally, the fixing nut 452 is rotated along the fixing screw 451 so that the side of the fixing nut 452 and the driving rod 44 that are close to each other abut together, thereby improving the stability of the end of the locking plate 42 inserted into the inner wall of the locking groove 32, and thus improving the stability of the first connecting rod 2 and the second connecting rod 3 pressed against the pipeline body 1.

[0047] The sealing adhesive is added to the sealing cavity 21 on the first connecting rod 2 and the second connecting rod 3 through the adding slot 22. Then, under the action of the second elastic element 55, the dovetail block 54 moves along the length of the inner wall of the dovetail groove 28 toward the side close to the sealing rod 51, so that the end of the clamping rod 53 is inserted into the inner wall of the clamping groove 511, thereby blocking the inner wall of the adding slot 22 through the sealing rod 51. After the sealing adhesive solidifies, it seals the crack on the pipe body 1. At this time, the first connecting rod 2 and the second connecting rod 3 protect the solidified sealing adhesive, reducing the possibility of the solidified sealing adhesive being directly exposed to the air and oxidizing, effectively improving the sealing effect of the pressure pipeline crack.

[0048] 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 pressure pipeline sealing device, comprising a pipeline body (1), characterized in that: The outer wall of the pipe body (1) is provided with a first connecting rod (2) and a second connecting rod (3). A locking component (4) is provided between the first connecting rod (2) and the second connecting rod (3). The locking component (4) is used to abut the ends of the first connecting rod (2) and the second connecting rod (3) that are close to each other, so that the first connecting rod (2) and the second connecting rod (3) are pressed against the pipe body (1). The first connecting rod (2) and the second connecting rod (3) are both provided with a leak-sealing cavity (21) on the side close to the pipe body (1). The leak-sealing cavities (21) on the first connecting rod (2) and the second connecting rod (3) are connected. The leak-sealing cavity (21) covers the crack on the pipe body (1). The side of the second connecting rod (3) away from the pipe body (1) is provided with an adding groove (22) for adding leak-sealing adhesive to the inner wall of the leak-sealing cavity (21). The second connecting rod (3) is provided with a sealing element (5) for blocking the inner wall of the adding groove (22). The locking assembly (4) includes a positioning block (41), a locking plate (42), a guide block (43), a drive rod (44), and a fixing member (45). The positioning block (41) is disposed at the end of the first connecting rod (2). The second connecting rod (3) has a positioning groove (31) for the positioning block (41) to be inserted at one end near the first connecting rod (2). The side wall of the first connecting rod (2) has a mounting groove (23) for the locking plate (42) to be rotatably embedded. The guide block (43) is disposed in the mounting groove (45). 23) The inner wall of the locking plate (42) is provided with a guide hole (421) for the guide block (43) to slide. The second connecting rod (3) is provided with a locking groove (32) for the end of the locking plate (42) to be inserted on the side near the first connecting rod (2). The driving rod (44) is provided on the side wall of the locking plate (42). The first connecting rod (2) is provided with a driving groove (24) for the driving rod (44) to rotate. The fixing member (45) is used to fix the driving rod (44) to the first connecting rod (2). The fixing member (45) includes a fixing screw (451) and a fixing nut (452). The fixing screw (451) is disposed on the side wall of the first connecting rod (2). The driving rod (44) has a driving hole (441) through which the fixing screw (451) slides. The fixing nut (452) is threaded onto the fixing screw (451). The fixing nut (452) and the driving rod (44) abut against each other on their adjacent sides.

2. The pressure pipeline sealing device according to claim 1, characterized in that: The positioning block (41) has a guide surface (411) at the end away from the first connecting rod (2) to facilitate easy insertion into the inner wall of the positioning groove (31).

3. The pressure pipeline sealing device according to claim 1, characterized in that: The first connecting rod (2) and the second connecting rod (3) are both provided with sliding holes (25). The sliding hole (25) of the first connecting rod (2) is connected to the sealing cavity (21) on the first connecting rod (2). The sliding hole (25) of the second connecting rod (3) is connected to the sealing cavity (21) on the second connecting rod (3). An insert rod (6) is slidably connected to the inner wall of the sliding hole (25). Fasteners (7) are provided on the first connecting rod (2) and the second connecting rod (3). The fasteners (7) are used to drive the insert rod (6) to slide along the length direction of the inner wall of the sliding hole (25).

4. A pressure pipeline sealing device according to claim 3, characterized in that: The fastener (7) includes a control rod (71), a docking rod (72), and a fastening tube (73). The first connecting rod (2) and the second connecting rod (3) are each provided with a control groove (26) for the control rod (71) to slide. The first connecting rod (2) and the second connecting rod (3) are provided with a receiving cavity (27) for the docking rod (72) to be embedded. One end of the docking rod (72) is rotatably connected to the side wall of the control rod (71), and the other end of the docking rod (72) is rotatably connected to the side wall of the insert rod (6). The fastening tube (73) is threaded to the side wall of the control rod (71). The control groove (26) is provided with a fastening thread groove (261), and the end of the fastening tube (73) is threaded to the inner wall of the fastening thread groove (261).

5. A pressure pipeline sealing device according to claim 4, characterized in that: The first connecting rod (2) and the second connecting rod (3) each have a number of sliding holes (25). The number of the insert rods (6) and the number of sliding holes (25) are the same. The insert rods (6) and the sliding holes (25) are arranged in a one-to-one correspondence. An auxiliary rod (62) is provided between adjacent insert rods (6) on the first connecting rod (2) and the second connecting rod (3). A clamping member (8) is provided between the auxiliary rod (62) and the insert rod (6). The connecting rod (72) on the first connecting rod (2) is rotatably connected to one of the insert rods (6) on the first connecting rod (2). The connecting rod (72) on the second connecting rod (3) is rotatably connected to one of the insert rods (6) on the second connecting rod (3).

6. A pressure pipeline sealing device according to claim 5, characterized in that: The clamping member (8) includes a clamping rod (81) and a first elastic member (82). The end of the insertion rod (6) away from the pipe body (1) is provided with a moving hole (63) for the clamping rod (81) to slide. One end of the first elastic member (82) is provided at the end of the clamping rod (81), and the other end of the first elastic member (82) is provided on the inner wall of the moving hole (63). The end of the auxiliary rod (62) is provided with a clamping groove (621) for the end of the clamping rod (81) to be inserted.

7. A pressure pipeline sealing device according to claim 6, characterized in that: Each of the aforementioned inserts (6) has a protective pad (61) at one end near the pipe body (1).

8. A pressure pipeline sealing device according to claim 1, characterized in that: The sealing element (5) includes a sealing rod (51), a sealing ring (52), a clamping rod (53), a dovetail block (54), and a second elastic element (55). The sealing rod (51) is inserted into the inner wall of the adding slot (22). The sealing ring (52) is disposed on the side wall of the sealing rod (51). The inner wall of the adding slot (22) is provided with a sealing groove (221) for the sealing ring (52) to be embedded. The clamping rod (53) and the dovetail block (54) are fixedly connected. The side wall of the sealing rod (51) is provided with a clamping groove (511) for the end of the clamping rod (53) to be inserted. The second connecting rod (3) is provided with a dovetail groove (28) for the dovetail block (54) to slide on the side away from the pipe body (1). One end of the second elastic element (55) is disposed on the side wall of the dovetail block (54), and the other end of the second elastic element (55) is disposed on the inner wall of the dovetail groove (28).

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