Pipe welding alignment device

Abstract

The utility model provides a kind of pipeline welding butting device, it is related to pipeline welding technical field.Pipeline welding butting device includes main body structure, first fastening structure and second fastening structure.Main body structure has opposite first end and second end, first fastening structure is installed in first end, second fastening structure is installed in second end, when first pipe section is fastened by first fastening structure, second pipe section is fastened by second fastening structure, the butting of first pipe section and second pipe section can be realized.First fastening structure is slidably connected with first end, while second fastening structure is slidably connected with second end, first pipe section can be driven to slide by first fastening structure, second pipe section can be driven to slide by second fastening structure, to realize the adjustment of the gap between first pipe section and second pipe section, ensure the butting state of two pipe sections in gap adjustment process, and further help to ensure the butting quality.

Description

Technical Field

[0001] This utility model relates to the field of pipeline welding technology, and more specifically, to a pipeline welding butt joint device. Background Technology

[0002] In pipeline welding operations, pipe alignment is required. Pipe alignment is the process of assembling and joining pipe sections on-site or in the workshop after grinding. The quality and efficiency of pipe joint connection directly affect the quality and progress of the pipeline project. Therefore, pipe alignment is an important factor that must be considered during construction operations.

[0003] Currently, pipe alignment is generally done manually. During the alignment process, the welding gap is manually adjusted, followed by tack welding to fix the two pipe sections together, and then final welding. During final welding, the tack weld points are ground before welding. This method is time-consuming during pipe alignment, and the grinding and bridging during final welding also takes considerable time. Furthermore, the grinding of the tack weld points can easily lead to over-grinding or incomplete grinding. Therefore, improving alignment efficiency and quality has become an important goal in pipe welding. Utility Model Content

[0004] The purpose of this invention is to provide a pipe welding butt joint device that can improve the technical problems of low butt joint efficiency and low butt joint quality in the prior art.

[0005] The embodiments of this utility model can be implemented in the following ways:

[0006] A pipe welding butt joint device, the pipe welding butt joint device comprising:

[0007] The main structure includes two fastening structures, namely a first fastening structure and a second fastening structure. The first fastening structure is used to fasten a first pipe segment, and the second fastening structure is used to fasten a second pipe segment, thereby achieving alignment between the first and second pipe segments. The main structure has a first end and a second end opposite to each other. The first fastening structure is slidably mounted on the first end, and the second fastening structure is slidably mounted on the second end, so that the gap between the first and second pipe segments can be adjusted by adjusting the distance between the first and second fastening structures.

[0008] Optionally, the main structure includes a main block and connecting structures disposed on both sides of the main block, wherein the connecting structure on one side of the main block forms the first end and the connecting structure on the other side of the main block forms the second end;

[0009] The fastening structure is slidably mounted on the connecting structure; the main block has a first contact surface, which is an arc-shaped concave surface, and the first contact surface is used to mate with the outer walls of the first pipe segment and the second pipe segment.

[0010] Optionally, the connection structure includes a connecting screw and a locking nut, the locking nut being screwed onto the connecting screw and the connecting screw passing through the fastening structure; the locking nut is used to lock or loosen the fastening structure.

[0011] Optionally, the locking nut includes a first nut and a second nut, both of which are screwed onto the connecting screw. The first nut and the second nut are located on opposite sides of the fastening structure. The rotation of the first nut and the second nut relative to the connecting screw is used to push the fastening structure to move toward or away from the main body block.

[0012] Optionally, the first nut is located between the main body block and the fastening structure, and the first nut has a plurality of insertion holes;

[0013] The second nut is located on the side of the fastening structure away from the main body block, and the second nut is a hexagonal nut.

[0014] Optionally, the connecting structure further includes a guide rod, one end of which is fixedly connected to the main body block, and the other end of which is inserted into the fastening structure. The guide rod is arranged parallel to the connecting screw. The guide rod is used to guide the movement direction of the fastening structure and restrict the rotation of the fastening structure relative to the connecting screw.

[0015] Optionally, the main block also has a stepped groove located in the middle of the first contact surface to divide the first contact surface into a first contact portion and a second contact portion. The first contact portion is used to mate with the outer wall of the first pipe segment, and the second contact portion is used to mate with the outer wall of the second pipe segment.

[0016] The stepped groove includes a first groove and a second groove disposed at the bottom of the first groove.

[0017] Optionally, the fastening structure includes a fastening block and a fastening strap disposed on the fastening block. The fastening block has a second contact surface that mates with the pipe segment. The second contact surface is an arc-shaped concave surface. The fastening strap is used to bind and fasten the pipe segment.

[0018] Optionally, the fastening block is further provided with a groove, through which the fastening strap is disposed to limit the fastening strap.

[0019] Optionally, the fastening structure further includes a strap fastener, the fastening strap having a fixed end and a free end, the fixed end being fixedly connected to the strap fastener, and the strap fastener being used to fix or loosen the free end.

[0020] The beneficial effects of the pipe welding butt joint device provided in the embodiments of this utility model include:

[0021] This utility model provides a pipe welding butt joint device, which uses two fastening structures that are slidably connected to the main structure to fasten the two pipe segments to be welded. This helps to improve the butt joint efficiency and quality. At the same time, the gap between the two pipe segments can be adjusted by adjusting the distance between the two fastening structures, thus ensuring the quality of subsequent welding. Moreover, the fastening of the pipe segments by the fastening structures ensures the butt joint status of the two pipe segments during the gap adjustment process, which also helps to ensure the butt joint quality. Attached Figure Description

[0022] The above-described features and advantages of this invention can be better understood after reading the following detailed description of the embodiments of this disclosure in conjunction with the accompanying drawings. In the drawings, the components are not necessarily drawn to scale, and components having similar related characteristics or features may have the same or similar reference numerals.

[0023] Figure 1 A schematic diagram of the pipe welding butt joint device according to one aspect of the present invention is shown in use.

[0024] Figure 2 A three-dimensional structural schematic diagram of a pipe welding butt joint device according to one aspect of the present invention is shown;

[0025] Figure 3 A front view of a pipe welding butt joint device according to one aspect of the present invention is shown;

[0026] Figure 4 A side view of the main structure of the pipe welding butt joint device provided according to one aspect of the present invention is shown.

[0027] Figure 5 A schematic diagram of a fastening structure according to one aspect of the present invention is shown.

[0028] Figure label:

[0029] 10-Pipe welding butt joint device; 100-Main structure; 110-Main block; 111-First contact surface; 112-First contact part; 113-Second contact part; 114-Step groove; 115-First groove; 116-Second groove; 120-Connecting structure; 121-First connecting structure; 122-Second connecting structure; 123-Connecting screw; 124-First nut; 125-Insertion hole; 126-Second nut; 127-Guide rod; 200-Fastening structure; 211-First fastening structure; 212-Second fastening structure; 220-Fastening block; 221-Second contact surface; 222-Groove; 230-Fastening strap; 231-Fixed end; 232-Free end; 240-Strap fastener; 241-Fastener handle;

[0030] 21 - First pipe section; 22 - Second pipe section. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the aspects described below with reference to the accompanying drawings and specific embodiments are merely exemplary and should not be construed as limiting the scope of protection of the present invention in any way.

[0032] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," "outer," or "vertical" appear, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, and does not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] At the same time, it should be noted that the terms "first" and "second" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance.

[0034] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified or limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components, etc. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Figure 1 This is a schematic diagram of the pipe welding butt joint device 10 provided in this embodiment during use. Figure 2 This is a three-dimensional structural diagram of the pipe welding butt joint device 10 provided in this embodiment. Figure 3This is a front view of the pipe welding butt joint device 10 provided in this embodiment. Please refer to the reference. Figures 1-3 This embodiment provides a pipe welding butt joint device 10, which can perform butt joint operations on the first pipe section 21 and the second pipe section 22, preparing for subsequent welding. It should be noted that in the following description, "first pipe section 21" and "second pipe section 22" can also be collectively referred to as pipe sections.

[0036] The pipe welding butt joint device 10 includes a main structure 100 and two fastening structures 200, namely a first fastening structure 211 and a second fastening structure 212. The main structure 100 has a first end and a second end opposite to each other. The first fastening structure 211 is installed at the first end, and the second fastening structure 212 is installed at the second end. Thus, when the first pipe section 21 is fastened through the first fastening structure 211, and the second pipe section 22 is fastened through the second fastening structure 212, the butt joint of the first pipe section 21 and the second pipe section 22 can be achieved. The first fastening structure 211 is slidably connected to the first end, and the second fastening structure 212 is slidably connected to the second end. Thus, the first fastening structure 211 can drive the first pipe segment 21 to slide relative to the main structure 100, and the second fastening structure 212 can drive the second pipe segment 22 to slide relative to the main structure 100, thereby realizing the adjustment of the gap between the first pipe segment 21 and the second pipe segment 22, ensuring the alignment of the two pipe segments during the gap adjustment process, and thus also helping to ensure the alignment quality.

[0037] The pipe welding butt joint device 10 provided in this embodiment will be further described below:

[0038] Figure 4 This is a side view of the main structure 100 of the pipe welding butt joint device 10 provided in this embodiment. Please refer to the diagram. Figures 1-4 In this embodiment, the main structure 100 includes a main block 110 and connecting structures 120 disposed on both sides of the main block 110. The connecting structure 120 on one side of the main block 110 forms a first end, and the connecting structure 120 on the other side of the main block 110 forms a second end. The fastening structure 200 is slidably mounted on the connecting structure 120. The main block 110 is provided with a first contact surface 111, which is an arc-shaped concave surface, and the first contact surface 111 is used to mate with the outer wall of the first pipe section 21 and the second pipe section 22, which helps to further improve the alignment quality.

[0039] Specifically, the main body block 110 is roughly a cuboid block, with its lower side wall serving as the first contact surface 111. Two connecting structures 120 are a first connecting structure 121 and a second connecting structure 122, respectively connected to opposite sides of the main body block 110 along its length. Correspondingly, the first connecting structure 121 forms a first end, and the second connecting structure 122 forms a second end. A first fastening structure 211 is slidably mounted on the first connecting structure 121, and a second fastening structure 212 is slidably mounted on the second connecting structure 122.

[0040] It should be noted that in this embodiment, by setting a connecting structure 120 on the main structure 100 and setting the fastening structure 200 to be slidably connected to the connecting structure 120, it can be understood that in some other embodiments, a connecting structure can also be set on the fastening structure 200 as needed, and the connecting structure can be slidably connected to the main block 110.

[0041] Furthermore, the connecting structure 120 includes a connecting screw 123 and a locking nut. The locking nut is screwed onto the connecting screw 123, and the connecting screw 123 passes through the fastening structure 200. The locking nut is used to lock or loosen the fastening structure 200. When the locking nut loosens the fastening structure 200, the fastening structure 200 can slide relative to the connecting screw 123 along the axial direction of the connecting screw 123, thereby realizing a slidable connection between the connecting structure 120 and the fastening structure 200. It is understood that in some other embodiments, other methods can also be used to realize the slidable connection between the connecting structure 120 and the fastening structure 200, such as setting a sliding fit between a slide groove and a slide rail, or setting the screw to be rotatably connected to the main body block 110 and setting the connecting screw 123 to be screwed onto the fastening structure 200, thereby forming a lead screw mechanism.

[0042] It should be noted that in this embodiment, the first connecting structure 121 and the second connecting structure 122 have the same structure. Therefore, the first connecting structure 121 and the second connecting structure 122 are not described in detail here. It is understood that in some other embodiments, the first connecting structure 121 and the second connecting structure 122 can be specifically set according to the requirements. For example, the specific structure of the first connecting structure 121 can be set to be different from that of the second connecting structure 122.

[0043] Furthermore, the locking nut includes a first nut 124 and a second nut 126, both of which are screwed onto the connecting screw 123. The first nut 124 and the second nut 126 are located on both sides of the fastening structure 200, and the rotation of the first nut 124 and the second nut 126 relative to the connecting structure 120 is used to push the fastening structure 200 to move towards or away from the main body block 110.

[0044] Specifically, the first nut 124 is located between the main body block 110 and the fastening structure 200, and the second nut 126 is located on the side of the fastening structure 200 away from the main body block 110. With both the first nut 124 and the second nut 126 tightened, the fastening structure 200 is clamped and fixed between the first nut 124 and the second nut 126, at which point the fastening structure 200 is fixed relative to the main block 110. When it is necessary to adjust the fastening structure 200 to move towards the main block 110 to reduce the gap, the first nut 124 is loosened and the second nut 126 is screwed on. The second nut 126 pushes the fastening structure 200 towards the main block 110 until the main block 110 is in place, then the first nut 124 and the second nut 126 are tightened. When it is necessary to adjust the fastening structure 200 to move away from the main block 110 to increase the gap, the second nut 126 is loosened and the first nut 124 is screwed on. The first nut 124 pushes the fastening structure 200 away from the main block 110 until the main block 110 is in place, then the first nut 124 and the second nut 126 are tightened.

[0045] Optionally, the first nut 124 has multiple insertion holes 125. When the first nut 124 needs to be tightened, an external operating rod is inserted into the insertion hole 125, and the operating rod drives the first nut 124 to rotate relative to the connecting screw 123. This facilitates the tightening operation of the first nut 124 in a narrow space. Optionally, the second nut 126 is a hexagonal nut. When the second nut 126 needs to be tightened, a wrench is used. It is understood that in some other embodiments, the specific structures of the first nut 124 and the second nut 126 can also be set according to requirements.

[0046] Furthermore, the connecting structure 120 also includes a guide rod 127. One end of the guide rod 127 is fixedly connected to the main body block 110, and the other end of the guide rod 127 is inserted into the fastening structure 200. The guide rod 127 is arranged parallel to the connecting screw 123. Thus, when the fastening structure 200 slides, the guide rod 127 can guide the movement direction of the fastening structure 200, thereby preventing the fastening structure 200 from rotating relative to the connecting screw 123. Optionally, the guide rod 127 is located below the connecting screw 123. Optionally, in this embodiment, two guide rods 127 are provided on one side of the main body block 110.

[0047] Please refer to Figure 3In this embodiment, the main body block 110 also has a stepped groove 114, which is located in the middle of the first contact surface 111, thereby dividing the first contact surface 111 into a first contact portion 112 and a second contact portion 113. The first contact portion 112 is used to mate with the outer wall of the first pipe segment 21, and the second contact portion 113 is used to mate with the outer wall of the second pipe segment 22. Thus, when the joint is completed, the gap between the first pipe segment 21 and the second pipe segment 22 is located at the stepped groove 114, which can avoid deformation and other problems caused by the high temperature of welding on the main body block 110 during subsequent welding operations. The stepped groove 114 includes a first groove portion 115 and a second groove portion 116, with the second groove portion 116 disposed at the bottom of the first groove portion 115.

[0048] Specifically, the stepped groove 114 is a through groove extending along the width direction of the main body block 110, thereby dividing the first contact surface 111 into a first contact portion 112 and a second contact portion 113 located in the stepped groove 114 along the length direction of the main body block 110. The first groove portion 115 is also a through groove provided along the width direction of the main body block 110, and the second groove portion 116 extends along the width direction of the main body block 110 and is located in the middle of the bottom of the first groove portion 115.

[0049] Figure 5 This is a schematic diagram of the fastening structure 200 provided in this embodiment. Please refer to the diagram for further details. Figures 1-5 In this embodiment, the fastening structure 200 includes a fastening block 220 and a fastening strap 230 disposed on the fastening block 220. The fastening block 220 is provided with a second contact surface 221 that mates with the pipe segment. The second contact surface 221 is an arc-shaped concave surface. The engagement of the second contact surface 221 with the pipe segment helps to ensure accurate positioning of the pipe segment and prevent displacement. The fastening strap 230 is used to bind and fasten the pipe segment.

[0050] Specifically, in this embodiment, the specific structure of the first fastening structure 211 is the same as that of the second fastening structure 212. The second contact surface 221 of the first fastening structure 211 mates with the first pipe segment 21 to position the first pipe segment 21, and the first pipe segment 21 is bound and fastened to the fastening block 220 of the first fastening structure 211 by the fastening strap 230. Similarly, the second contact surface 221 of the second fastening structure 212 mates with the second pipe segment 22 to position the second pipe segment 22, and the second pipe segment 22 is bound and fastened to the fastening block 220 of the second fastening structure 212 by the fastening strap 230. Using the fastening strap 230 to fasten the pipe segment helps to meet the fastening requirements of pipe segments of different sizes and expands the applicability.

[0051] It should be noted that in this embodiment, the first fastening structure 211 and the second fastening structure 212 have the same structure. It is understood that in some other embodiments, the specific structures of the first fastening structure 211 and the second fastening structure 212 can be set according to the requirements, so that the first fastening structure 211 and the second fastening structure 212 adopt different structures.

[0052] Furthermore, the fastening block 220 is also provided with a groove 222, through which the fastening strap 230 passes to limit and position the fastening strap 230, preventing the fastening strap 230 from shifting relative to the fastening block 220 during tightening. Specifically, the fastening block 220 is generally a cuboid structure, with its lower side being a concave arc surface to form a second contact surface 221. The groove 222 is provided at the edge of the upper side of the fastening block 220.

[0053] Furthermore, the fastening structure 200 also includes a strap fastener 240. The fastening strap 230 has a fixed end 231 and a free end 232. The fixed end 231 is fixedly connected to the strap fastener 240, and the strap fastener 240 is used to fix or loosen the free end 232. Specifically, when binding and fixing the pipe section, the free end 232 of the fastening strap 230 passes around the pipe section and then around to the upper side of the fastening block 220, and is fixed by the strap fastener 240, thereby achieving the fastening of the pipe section; when it is necessary to loosen the pipe section, the strap fastener 240 can loosen the free end 232.

[0054] Specifically, the strap fastener 240 can adopt a conventional structure. In this embodiment, it has a fastener handle 241, which can tighten or loosen the free end 232 by rotating the fastener handle 241.

[0055] The pipe welding butt joint device 10 provided in this embodiment of the present invention, when in use, first ensures that the fastening strap 230 in the device is in a loose state and the locking nut is in a relaxed state. Then, the first pipe section 21 is fastened by the first fastening structure 211, and the second pipe section 22 is fastened by the second fastening structure 212. Then, the gap is adjusted according to the gap size between the first pipe section 21 and the second pipe section 22 required for welding. After adjustment, the fastening structure 200 is locked by the first nut 124 and the second nut 126. At this time, the welding preparation is completed, and welding can be carried out. During welding, the three-quarters of the part away from the main body block 110 can be welded first, and then the device can be loosened, the pipe section rotated and re-fixed, and welding can continue.

[0056] This pipe welding butt joint device 10 features a simple structure, rapid butt joint operation, adjustable welding gap, and convenient welding, which helps improve butt joint efficiency and quality, thereby increasing welding work efficiency. Meanwhile, the fastening structure 200 uses straps to secure the pipe section. This allows for easy strap replacement and length adjustment, making it suitable for butt joint operations on pipe sections of different sizes, even unconventional sizes. It can be used for rapid butt joint operation of pipes up to DN200, reducing the probability of welding deformation. Furthermore, the device is compact and portable, enabling butt joint operations within confined spaces.

[0057] The above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pipe welding butt joint device, characterized in that, The pipe welding butt joint device includes: The main structure includes two fastening structures, namely a first fastening structure and a second fastening structure. The first fastening structure is used to fasten a first pipe segment, and the second fastening structure is used to fasten a second pipe segment, thereby achieving alignment between the first and second pipe segments. The main structure has a first end and a second end opposite to each other. The first fastening structure is slidably mounted on the first end, and the second fastening structure is slidably mounted on the second end, so that the gap between the first and second pipe segments can be adjusted by adjusting the distance between the first and second fastening structures.

2. The pipe welding butt joint device according to claim 1, characterized in that, The main structure includes a main block and connecting structures disposed on both sides of the main block. The connecting structure located on one side of the main block forms the first end, and the connecting structure located on the other side of the main block forms the second end. The fastening structure is slidably mounted on the connecting structure; the main block has a first contact surface, which is an arc-shaped concave surface, and the first contact surface is used to mate with the outer walls of the first pipe segment and the second pipe segment.

3. The pipe welding butt joint device according to claim 2, characterized in that, The connection structure includes a connecting screw and a locking nut. The locking nut is screwed onto the connecting screw, and the connecting screw passes through the fastening structure. The locking nut is used to lock or loosen the fastening structure.

4. The pipe welding butt joint device according to claim 3, characterized in that, The locking nut includes a first nut and a second nut, both of which are screwed onto the connecting screw. The first nut and the second nut are located on opposite sides of the fastening structure. The rotation of the first nut and the second nut relative to the connecting screw is used to push the fastening structure to move toward or away from the main body block.

5. The pipe welding butt joint device according to claim 4, characterized in that, The first nut is located between the main body block and the fastening structure, and the first nut has multiple insertion holes; The second nut is located on the side of the fastening structure away from the main body block, and the second nut is a hexagonal nut.

6. The pipe welding butt joint device according to claim 4, characterized in that, The connecting structure further includes a guide rod, one end of which is fixedly connected to the main body block, and the other end of which is inserted into the fastening structure. The guide rod is arranged parallel to the connecting screw. The guide rod is used to guide the movement direction of the fastening structure and restrict the rotation of the fastening structure relative to the connecting screw.

7. The pipe welding butt joint device according to claim 2, characterized in that, The main body block also has a stepped groove, which is located in the middle of the first contact surface to divide the first contact surface into a first contact portion and a second contact portion. The first contact portion is used to cooperate with the outer wall of the first pipe segment, and the second contact portion is used to cooperate with the outer wall of the second pipe segment. The stepped groove includes a first groove and a second groove disposed at the bottom of the first groove.

8. The pipe welding butt joint device according to claim 1, characterized in that, The fastening structure includes a fastening block and a fastening strap disposed on the fastening block. The fastening block has a second contact surface that mates with the pipe segment. The second contact surface is an arc-shaped concave surface. The fastening strap is used to bind and fasten the pipe segment.

9. The pipe welding butt joint device according to claim 8, characterized in that, The fastening block is also provided with a groove, and the fastening strap is disposed through the groove to limit the fastening strap through the groove.

10. The pipe welding butt joint device according to claim 8, characterized in that, The fastening structure further includes a strap fastener, the fastening strap having a fixed end and a free end, the fixed end being fixedly connected to the strap fastener, and the strap fastener being used to fix or loosen the free end.

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