A quick aligning device for side opening of a pipeline

Abstract

This utility model provides a quick-aligner for side-opening pipes. The quick-aligner includes a flange, a galvanized pipe fixedly connected to the top of the flange, a connecting plate fixedly connected to the top of the galvanized pipe, and a mounting plate on the top of the connecting plate. The top of the mounting plate is mounted on the top of the connecting plate via a locking assembly. A gear one is rotatably connected to the inner wall of the mounting plate, and gear one meshes with gear two. The inner wall of gear two is fixedly connected to the outer wall of a rotating shaft, and the bottom of the rotating shaft is fixedly connected to the bottom of the inner wall of the mounting plate. Gear two meshes with a rack, and a sliding ring is slidably connected to the outer wall of the rack. The outer wall of the rack is slidably connected to the inner wall of the mounting plate. A clamping plate is fixedly connected to one end of the rack located on the inner wall of the sliding ring. The quick-aligner for side-opening pipes provided by this utility model allows for radial sliding on the inner wall of the mounting plate through the sliding engagement of the rack and the sliding ring. It also offers the advantage of automatically adjusting the position of the clamping plate when clamping coaxial devices of different outer diameters.

Description

Technical Field

[0001] This utility model relates to the field of pipe side opening, and in particular to a pipe side opening quick centering device. Background Technology

[0002] In the fields of oil, natural gas, chemical industry, municipal pipeline network and marine engineering, it is often necessary to perform drilling operations on the side wall of existing or operating pipelines (such as branch pipe connection, instrument installation, online maintenance, etc.). This process usually adopts live drilling technology or shutdown drilling process. In order to ensure accurate drilling position and that the hole is perpendicular to the main pipe axis, a centering device must be used to precisely fix the drilling tool (such as drilling knife, drill bit or cutting head) at the predetermined position on the outer wall of the pipeline.

[0003] Currently, most common pipe alignment devices adopt threaded adjustment or manual clamping structures, which require adjusting multiple clamping points one by one. This is not only time-consuming and labor-intensive, but also prone to clamping eccentricity due to asynchronous adjustment, resulting in hole tilting or stress concentration in the connection. In addition, most devices are designed for specific pipe diameters or equipment, with poor versatility, and cannot be quickly adapted to coaxial devices or hole-opening tools of different specifications, which limits their application in complex field environments.

[0004] Therefore, it is necessary to provide a new quick centering device for side opening of pipes to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a quick centering device for side openings in pipelines.

[0006] This utility model provides a quick-aligning device for side-opening pipes, comprising a flange, a galvanized pipe fixedly connected to the top of the flange, an opening assembly rotatably connected to the outer wall of the galvanized pipe, a connecting plate fixedly connected to the top of the galvanized pipe, a mounting plate on the top of the connecting plate, and a locking assembly for mounting the top of the mounting plate to the top of the connecting plate. A gear is rotatably connected to the inner wall of the mounting plate, and multiple clamping assemblies are meshed with the gear. These clamping assemblies are equidistantly arranged around the gear, and are used to clamp coaxial components. The clamping assembly includes a second gear, a rotating shaft, and a rack. The first gear meshes with the second gear. The inner wall of the second gear is fixedly connected to the outer wall of the rotating shaft. The bottom of the rotating shaft is fixedly connected to the bottom of the inner wall of the mounting plate. The bottom of the inner wall of the mounting plate is fixedly connected to the bottom of the sliding ring. The second gear meshes with the rack. The outer wall of the rack is slidably connected to the sliding ring. The outer wall of the rack is slidably connected to the inner wall of the mounting plate. A positioning assembly is fixedly connected to the top of the first gear. A clamping plate is fixedly connected to one end of the rack located on the inner wall of the sliding ring.

[0007] Preferably, the positioning assembly includes a positioning hole, a rotating rod, a connecting rod, and a second bolt. The top of the mounting plate has multiple positioning holes. The top of the first gear is fixedly connected to the bottom of the rotating rod. The top of the rotating rod is fixedly connected to one end of the connecting rod. One end of the connecting rod is threaded to the outer wall of the second bolt, and the bottom of the second bolt is threaded to the inner wall of the positioning hole.

[0008] Preferably, the positions of the plurality of positioning holes correspond to the pipe diameter of the respective pipe.

[0009] Preferably, the locking assembly includes a bolt, a nut, and a through hole. The outer circumference of the connecting plate and the mounting plate is provided with a plurality of through holes at equal intervals. The inner wall of the through hole is provided with a bolt. The outer wall of the bolt is threaded to the inner wall of the nut. Two nuts are provided at both ends of the bolt. One nut is located at the bottom of the connecting plate and the other nut is located at the top of the mounting plate.

[0010] Preferably, the hole-opening assembly includes a mounting ring, a connecting plate, and a mounting bracket. The outer wall of the galvanized pipe is rotatably connected to the inner wall of the mounting ring. The outer wall of the mounting ring is fixedly connected to one end of the connecting plate. The other end of the connecting plate is fixedly connected to one side of the mounting bracket. The inner wall of the mounting bracket is provided with a clamping assembly for fixing the hole opener.

[0011] Preferably, the bottom of the connecting plate is provided with a sliding groove, the top of the mounting ring is fixedly connected with a sliding rod, the bottom of the sliding rod is provided with a threaded groove, the bottom of the sliding rod is slidably connected to the inner wall of the sliding groove, the top of the sliding groove is provided with a pad, the sliding rod is located on the inner wall of the pad, and the bottom of the sliding rod is threadedly connected with a second nut, the second nut being located on the top of the pad.

[0012] Compared with related technologies, the pipe side opening quick centering device provided by this utility model has the following beneficial effects: It adopts a transmission structure in which gear one (center gear) drives multiple gear two, which drives multiple rack and pinion clamping components to move radially synchronously. All clamping components move equidistantly and synchronously towards the center or the outside under the gear meshing transmission, ensuring uniform distribution of clamping force and realizing automatic centering of the clamped coaxial device. This avoids eccentricity errors caused by single-point or asynchronous adjustment and significantly improves centering accuracy. The clamping components can slide radially on the inner wall of the mounting plate through the sliding cooperation of the rack and the sliding ring. When clamping coaxial devices with different outer diameters, each clamping component can automatically adjust its position to adapt to various specifications of equipment. Attached Figure Description

[0013] Figure 1 A schematic diagram of a preferred embodiment of the pipe side opening quick centering device provided by this utility model;

[0014] Figure 2 for Figure 1 The diagram shows the structure of the perforated assembly.

[0015] Figure 3 for Figure 1 The diagram shows the structure of the locking assembly.

[0016] Figure 4 for Figure 1 The diagram shows the structure of the centering component;

[0017] Figure 5 for Figure 1 The diagram shows the structure of the positioning component.

[0018] Labels in the diagram: 1. Flange; 2. Galvanized pipe; 3. Mounting ring; 4. Connecting plate; 5. Mounting bracket; 6. Coaxial; 7. Connecting disc; 8. Bolt 1; 9. Nut 1; 10. Through hole; 11. Mounting disc; 12. Positioning hole; 13. Gear 1; 14. Gear 2; 15. Shaft; 16. Rack; 17. Rotating rod; 18. Connecting rod; 19. Bolt 2; 20. Sliding rod; 21. Pad; 22. Nut 2; 23. Sliding groove; 24. Sliding ring. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 ,in, Figure 1 A schematic diagram of a preferred embodiment of the pipe side opening quick centering device provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the perforated assembly. Figure 3 for Figure 1 The diagram shows the structure of the locking assembly. Figure 4 for Figure 1 The diagram shows the structure of the centering component; Figure 5 for Figure 1 The diagram shows the structure of the positioning component.

[0021] In the specific implementation process, such as Figure 1-2As shown, this utility model provides a quick centering device for side opening of pipes, including a flange 1. A galvanized pipe 2 is fixedly connected to the top of the flange 1. An opening assembly is rotatably connected to the outer wall of the galvanized pipe 2. A connecting plate 7 is fixedly connected to the top of the galvanized pipe 2. The opening assembly includes a mounting ring 3, a connecting plate 4, and a mounting bracket 5. The outer wall of the galvanized pipe 2 is rotatably connected to the inner wall of the mounting ring 3. The outer wall of the mounting ring 3 is fixedly connected to one end of the connecting plate 4. The other end of the connecting plate 4 is fixedly connected to one side of the mounting bracket 5. A clamp assembly is provided on the inner wall of the mounting bracket 5. The clamp assembly is used to fix the opening device. A sliding groove 23 is provided at the bottom of the connecting plate 7. A sliding rod 20 is fixedly connected to the top of the mounting ring 3. A threaded groove is provided at the bottom of the sliding rod 20. The bottom of the sliding rod 20 is slidably connected to the inner wall of the sliding groove 23. A pad 21 is provided at the top of the sliding groove 23. The sliding rod 20 is located on the inner wall of the pad 21. A nut 22 is threadedly connected to the bottom of the sliding rod 20. The nut 22 is located at the top of the pad 21.

[0022] It should be noted that the galvanized pipe 2 and the mounting ring 3 are rotatably connected, allowing the entire perforation assembly, including the connecting plate 4, mounting bracket 5, and clamp assembly, to rotate horizontally around the axis of the galvanized pipe 2. This enables the angle adjustment of the perforator in the circumferential direction of the pipe, facilitating alignment with the predetermined perforation position. Combined with the clamp assembly, omnidirectional positioning can be achieved without adjusting the pipe or main equipment. The slide rod 20 can slide circumferentially within the slide groove 23 and is locked in place by the second nut 22. Adjusting the angle of the perforation assembly adapts to different pipe positions. The pad 21 acts as a limiting and supporting platform, preventing the slide rod 20 from moving circumferentially and ensuring structural stability. After adjustment, tighten the second nut 22 to lock the slide rod 20 and the connecting plate 7, preventing displacement due to vibration during the perforation process. The rotatable connection between the galvanized pipe 2 and the mounting ring 3 can be achieved by installing a rolling bearing on the inner wall of the mounting ring 3, which is then fitted onto the outer wall of the galvanized pipe 2.

[0023] In the specific implementation process, refer to Figure 3-5As shown, this utility model provides a quick centering device for side openings in pipes. A mounting plate 11 is provided on the top of the connecting plate 7. The top of the mounting plate 11 is mounted on the top of the connecting plate 7 via a locking assembly. A gear 13 is rotatably connected to the inner wall of the mounting plate 11. Multiple clamping assemblies are meshed with the gear 13, and these clamping assemblies are equidistantly arranged around the gear 13. The clamping assemblies are used to clamp the coaxial device 6. Each clamping assembly includes a gear 14, a rotating shaft 15, and a rack 16. The gear 13 meshes with the gear 14. The inner wall of the gear 14 is fixedly connected to the outer wall of the rotating shaft 15. The bottom of the rotating shaft 15 is fixedly connected to the bottom of the inner wall of the mounting plate 11. The bottom of the inner wall of the mounting plate 11 is fixedly connected to the bottom of a sliding ring 24. The gear 14 meshes with the rack 16. The outer wall of the rack 16 is slidably connected to the sliding ring 24 and the inner wall of the rack 16. A positioning assembly is fixedly connected to the top of the gear 13. A clamping plate is fixedly connected to one end of the inner wall of the sliding ring 24. The positioning assembly includes a positioning hole 12, a rotating rod 17, a connecting rod 18, and a bolt 19. Multiple positioning holes 12 are opened on the top of the mounting plate 11. The top of the gear 13 is fixedly connected to the bottom of the rotating rod 17. The top of the rotating rod 17 is fixedly connected to one end of the connecting rod 18. One end of the connecting rod 18 is threaded to the outer wall of the bolt 19. The bottom of the bolt 19 is threaded to the inner wall of the positioning hole 12. The positions of the multiple positioning holes 12 correspond to the pipe diameter of the corresponding pipe. The locking assembly includes a bolt 8, a nut 9, and a through hole 10. Multiple through holes 10 are equidistantly opened on the outer circumference of the connecting plate 7 and the mounting plate 11. The inner wall of the through hole 10 is through which the bolt 8 passes. The outer wall of the bolt 8 is threaded to the inner wall of the nut 9. Two nuts 9 are located at both ends of the bolt 8. One nut 9 is located at the bottom of the connecting plate 7, and the other nut 9 is located at the top of the mounting plate 11.

[0024] It should be noted that gear 13 is rotatably mounted on the inner wall of mounting plate 11 via bearings; rack 16 slides through the inside of sliding ring 24 and moves radially in a straight line to prevent skewing or jamming; clamping plates are arc-shaped metal blocks with rubber attached to their inner walls to conform to the curvature of the outer wall of coaxial coupling 6; when multiple clamping plates move synchronously toward the center, they form a uniform circumferential clamping force, avoiding local stress concentration that could damage the equipment; multiple positioning holes 12 are distributed along the top circumference of mounting plate 11, and their radial positions are aligned with the axial centers of pipes of different diameters; when it is necessary to drill a hole in a pipe of a certain diameter, the screw... Bolt 19 is screwed into the corresponding positioning hole 12, and the adjusting rod 18 is in a horizontal state so that its free end points to the center of the pipe. If positioning hole A corresponds to the center of DN100 pipe and hole B corresponds to DN150, the applicable pipe diameter can be quickly switched by changing the connection hole position of bolt 19. The locking component is used to detachably fix the mounting plate 11 to the top of the connecting plate 7, which is convenient for installing the main structure first in a narrow space and then assembling the clamping and positioning module. Gear 13 and multiple gears 14 adopt helical gear meshing, which provides smooth transmission and has a certain self-locking performance to prevent loosening due to vibration or reaction force after clamping.

[0025] The working principle of this utility model is as follows: The flange 1 is bolted to the side interface (such as a valve or reserved interface) of the pipe to be drilled, ensuring reliable flange sealing. The main structure is perpendicular to the pipe axis. The galvanized pipe 2 is fixed to the top of the flange 1, and the connecting plate 7 is located on top of the galvanized pipe 2, forming a stable vertical support shaft. The mounting plate 11, equipped with gear 13, clamping components (gear 14, rotating shaft 15, rack 16, clamping plate), sliding ring 24, and positioning components, is aligned with the top of the connecting plate 7. Bolt 8 is passed through the through hole 10 on the connecting plate 7 and the mounting plate 11, and nuts 9 are tightened at both ends to achieve mounting plate... The quick-release and fixation of component 11 facilitates the initial installation of the main shaft structure in confined spaces. The coaxial unit 6 is placed at the center of multiple clamping plates. The positions of the rotating rod 17 and connecting rod 18 are adjusted so that the connecting rod 18 is horizontal. Based on the diameter of the coaxial unit 6 (e.g., DN100 or DN150), bolt 19 is screwed into the corresponding radial positioning hole 12. At this time, gear 13 rotates synchronously following the position change of the rotating rod 17. Through helical gear meshing, multiple gears 14 rotate synchronously. Gears 14 drive the rotating shaft 15 to rotate, driving the meshing rack 16 to slide radially towards the center (guided by the sliding ring 24 to prevent skewing). The clamping plates converge synchronously towards the center, and multiple arc-shaped clamping plates evenly clamp the outer wall of the coaxial device 6 from the circumferential direction. The rubber layer conforms to the curvature to avoid stress concentration, and the helical tooth meshing provides a self-locking function to prevent vibration and loosening. Tighten bolt 19 into the selected positioning hole 12 to fix the position of the rotating rod 17 and prevent it from shifting during subsequent operations. The opening assembly (mounting ring 3, connecting plate 4, mounting bracket 5, and clamping assembly) is connected to the galvanized pipe 2 by the mounting ring 3 (such as a rolling bearing structure), and can rotate horizontally around the axis of the galvanized pipe 2. The sliding rod 20 at the top of the mounting ring 3 slides circumferentially in the sliding groove 23 of the connecting plate 7, and works with the pad 21 as a support limit. The platform allows for fine-tuning of the angle, adjusting the hole-opening assembly to the required opening angle position on the pipe circumference to ensure the correct orientation of the hole opener. Nut 22 is tightened into the threaded groove at the bottom of the slide rod 20, pressing the pad 21 to lock the slide rod 20 and connecting plate 7, preventing angle deviation due to vibration during the hole-opening process. The hole opener (such as an electric drill, hydraulic hole opener, etc.) is installed in the clamping assembly within the mounting frame 5, clamped and fixed. The hole opener is then started and advanced along the axis of the galvanized pipe 2 to precisely open a hole on the pipe sidewall. After opening, all locking structures are released, allowing for the sequential disassembly of the mounting plate 11, hole opener, clamps, etc., for easy reuse or storage.

[0026] This pipe side opening quick centering device has the following advantages: Gear 13 drives multiple gears 24 to rotate synchronously, driving multiple sets of racks 16 to move radially synchronously, so that each clamping plate is equidistant and synchronously converges towards the center, forming a uniform circumferential clamping force, avoiding eccentricity or local stress concentration. The clamping action is based on a centrally symmetrical structure. Regardless of the initial position of the coaxial device 6, its center automatically coincides with the axis of the equipment (the axis of the galvanized pipe 2) after clamping, ensuring that the opening device is perpendicularly aligned with the pipe axis. The opening assembly can rotate freely around the galvanized pipe 2 through the bearing structure. With the sliding rod 20 sliding in the slide groove 23, it can achieve arbitrary angle positioning in the circumferential direction, adapting to various opening positions. The structure of the sliding rod 20 and the slide groove 23 supports fine angle adjustment. After adjustment, it is locked with nut 22 to prevent deviation during operation.

[0027] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A quick centering device for side opening of a pipe, comprising a flange (1), a galvanized pipe (2) fixedly connected to the top of the flange (1), an opening assembly rotatably connected to the outer wall of the galvanized pipe (2), a connecting plate (7) fixedly connected to the top of the galvanized pipe (2), an mounting plate (11) provided on the top of the connecting plate (7), the top of the mounting plate (11) being mounted on the top of the connecting plate (7) by a locking assembly, a gear (13) rotatably connected to the inner wall of the mounting plate (11), and a plurality of clamping assemblies meshing with the gear (13), characterized in that, Multiple clamping components are circumferentially and equidistantly arranged around gear one (13). The clamping components are used to clamp the coaxial device (6). The clamping components include gear two (14), a rotating shaft (15), and a rack (16). Gear one (13) meshes with gear two (14). The inner wall of gear two (14) is fixedly connected to the outer wall of the rotating shaft (15). The bottom of the rotating shaft (15) is fixedly connected to the bottom of the inner wall of the mounting plate (11). The bottom of the inner wall of the mounting plate (11) is fixedly connected to the bottom of the sliding ring (24). Gear two (14) meshes with rack (16). The outer wall of rack (16) is slidably connected to the sliding ring (24). The outer wall of rack (16) is slidably connected to the inner wall of the mounting plate (11). A positioning component is fixedly connected to the top of gear one (13). A clamping plate is fixedly connected to one end of rack (16) located on the inner wall of sliding ring (24).

2. The quick centering device for side openings in pipes according to claim 1, characterized in that, The positioning assembly includes a positioning hole (12), a rotating rod (17), a connecting rod (18), and a bolt (19). The top of the mounting plate (11) is provided with multiple positioning holes (12). The top of the gear (13) is fixedly connected to the bottom of the rotating rod (17). The top of the rotating rod (17) is fixedly connected to one end of the connecting rod (18). One end of the connecting rod (18) is threadedly connected to the outer wall of the bolt (19). The bottom of the bolt (19) is threadedly connected to the inner wall of the positioning hole (12).

3. The quick centering device for side openings in pipes according to claim 2, characterized in that, The positions of the multiple positioning holes (12) correspond to the pipe diameters of the respective pipes.

4. The quick centering device for side openings in pipes according to claim 3, characterized in that, The locking assembly includes a bolt (8), a nut (9), and a through hole (10). The outer circumference of the connecting plate (7) and the mounting plate (11) is provided with a plurality of through holes (10) at equal intervals. The inner wall of the through hole (10) is provided with a bolt (8). The outer wall of the bolt (8) is threaded to the inner wall of the nut (9). Two nuts (9) are provided at both ends of the bolt (8). One nut (9) is located at the bottom of the connecting plate (7), and the other nut (9) is located at the top of the mounting plate (11).

5. The quick centering device for side openings in pipes according to claim 4, characterized in that, The opening assembly includes a mounting ring (3), a connecting plate (4), and a mounting bracket (5). The outer wall of the galvanized pipe (2) is rotatably connected to the inner wall of the mounting ring (3). The outer wall of the mounting ring (3) is fixedly connected to one end of the connecting plate (4). The other end of the connecting plate (4) is fixedly connected to one side of the mounting bracket (5). The inner wall of the mounting bracket (5) is provided with a clamping assembly, which is used to fix the opening device.

6. The quick centering device for side openings in pipes according to claim 5, characterized in that, The bottom of the connecting plate (7) is provided with a sliding groove (23), the top of the mounting ring (3) is fixedly connected with a sliding rod (20), the bottom of the sliding rod (20) is provided with a threaded groove, the bottom of the sliding rod (20) is slidably connected to the inner wall of the sliding groove (23), the top of the sliding groove (23) is provided with a pad (21), the sliding rod (20) is located on the inner wall of the pad (21), the bottom of the sliding rod (20) is threadedly connected with a nut (22), and the nut (22) is located on the top of the pad (21).

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