Small-pipe-diameter welding aligning device

Abstract

The invention relates to a small-pipe-diameter welding aligning device which comprises an upper fixing ring, a lower fixing ring and a clamping mechanism, the upper fixing ring and the lower fixing ring are coaxially distributed up and down and fixedly connected through a connecting mechanism, and fastening assemblies used for fastening pipelines are installed in the upper fixing ring and the lower fixing ring respectively. The clamping mechanism is installed on the connecting mechanism and used for clamping a pipeline penetrating through the upper fixing ring and the lower fixing ring. The device has the beneficial effects of being compact in structure, reasonable in design, capable of achieving rapid butt welding of vertical pipelines such as culverts and vertical shafts under the complex environment, good in pipe opening butt joint quality, high in efficiency and capable of saving time and labor.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline maintenance, and in particular to a small-diameter welding butt jointer. Background Art

[0002] Currently available pipe welding butt welders are not only heavy and inconvenient to move, but most of them are more suitable for butt welding of horizontal pipes. It is extremely difficult to butt weld vertical pipes in complex environments such as culverts and shafts. In this context, we have researched and invented a tooling equipment that is convenient for butt welding of vertical pipes in complex environments. Summary of the invention

[0003] The invention provides a small-diameter pipe welding butt joint device, aiming to solve the problems in the prior art.

[0004] The technical solution of the present invention to solve the above technical problems is as follows:

[0005] A small-diameter pipe welding adapter comprises an upper fixing ring, a lower fixing ring and a clamping mechanism, wherein the upper fixing ring and the lower fixing ring are coaxially distributed up and down and fixedly connected by a connecting mechanism, and fastening components for fastening pipes are respectively installed in the upper fixing ring and the lower fixing ring; the clamping mechanism is installed on the connecting mechanism and is used to clamp the pipes inserted in the upper fixing ring and the lower fixing ring.

[0006] The beneficial effect of the present invention is that during use, two pipes to be welded are respectively inserted from the upper fixing ring and the lower fixing ring between the upper fixing ring and the lower fixing ring is fitted to the port. At this time, the two fastening components clamp the two pipes respectively; then, the clamping mechanism is used to clamp the two pipes from the side to further ensure the stability of the butt joint of the two pipes, thereby ensuring the quality of the welding of the two pipes.

[0007] The invention has a compact structure and a reasonable design, and can realize the rapid butt welding of vertical pipelines including culverts, shafts, etc. in complex environments, with better pipe butt welding quality, high efficiency, and time and labor saving.

[0008] Based on the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the two fastening assemblies respectively include a plurality of pairs of fasteners, and the plurality of pairs of fasteners are evenly spaced and installed in the upper fixing ring or the lower fixing ring along the circumference of the upper fixing ring or the lower fixing ring.

[0010] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and using multiple pairs of fasteners to clamp the two pipes, thereby ensuring the stability of the two pipes and the accuracy of the butt connection.

[0011] Furthermore, each pair of the fasteners includes two fastening rods, one end of the two fastening rods is rotatably connected to the inner wall of the upper fixing ring or the lower fixing ring respectively, and the two fastening rods are connected to the upper fixing ring or the lower fixing ring through a spring.

[0012] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and utilizing the elastic force of the two springs to enable the other ends of the two fastening rods to clamp the corresponding pipes, making clamping convenient;

[0013] In addition, the combination of two springs and two fastening rods can be applied to pipes of different diameters, and has strong versatility and is easy to use.

[0014] Furthermore, each pair of the fasteners comprises an elastic frame, one end of which is fixedly connected to the inner wall of the upper fixing ring or the lower fixing ring.

[0015] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and using multiple elastic frames to clamp the two pipes to ensure the stability of the two pipes and the accuracy of the butt connection.

[0016] Furthermore, the elastic frame is an arc-shaped structure.

[0017] The beneficial effect of adopting the above further solution is that the shape of the elastic frame is reasonably designed, which is convenient for clamping the pipeline.

[0018] Furthermore, two rollers are mounted on both sides of the other end of the elastic frame for relative rotation, and the axial directions of the two rollers are parallel to the axial directions of the upper fixing ring and the lower fixing ring.

[0019] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and using rollers to convert the sliding friction between the pipeline and the elastic frame into rolling friction, which facilitates welding of the pipeline and saves time and effort.

[0020] Furthermore, the connection mechanism includes a plurality of connection rods, which are evenly distributed between the upper fixing ring and the lower fixing ring at circumferential intervals, and whose two ends are fixedly connected to the upper fixing ring and the lower fixing ring respectively.

[0021] The beneficial effects of adopting the above further solution are simple structure, reasonable design, using multiple connecting rods to achieve the connection between the upper fixing ring and the lower fixing ring, and easy assembly.

[0022] Furthermore, the clamping mechanism includes a plurality of clamping assemblies, and the plurality of clamping assemblies are evenly spaced and installed on the plurality of connecting rods along the length direction of the connecting rods.

[0023] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and utilizing multiple clamping components to further clamp the two pipes, thereby further ensuring the stability of the pipes and thus ensuring the quality of pipe welding.

[0024] Furthermore, each of the clamping assemblies includes a plurality of clamping members, and the plurality of clamping members are installed on the plurality of connecting rods at even intervals in the circumferential direction.

[0025] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and using multiple clamping members to clamp the corresponding pipeline to ensure the stability of the pipeline, thereby ensuring the quality of pipeline welding.

[0026] Furthermore, the plurality of clamping members respectively include clamping screws, which are respectively threadedly connected to the plurality of connecting rods and extend radially along the upper fixing ring and the lower fixing ring.

[0027] The beneficial effect of adopting the above further scheme is simple structure and reasonable design. The threaded connection between multiple clamping screws and multiple connecting rods is used to make one end of the multiple clamping screws press against the corresponding pipe, thereby clamping the pipe, ensuring the stability of the pipe, and then ensuring the quality of pipe welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is an assembly diagram of the upper fixing ring and the lower fixing ring in the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of the clamping screw in the present invention;

[0031] Figure 4 It is a side view of the first embodiment of the present invention;

[0032] Figure 5 It is a side view of a second embodiment of the present invention;

[0033] Figure 6 It is a schematic diagram of the structure of the pipelines of the present invention when they are butt-jointed.

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] 1. Upper fixing ring; 2. Lower fixing ring; 3. Fastening rod; 4. Elastic frame; 5. Roller; 6. Connecting rod; 7. Clamping screw; 8. Pipe; 9. Spring. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0039] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0040] Example 1

[0041] like Figures 1 to 6 As shown, this embodiment provides a small-diameter welding adapter, including an upper fixing ring 1, a lower fixing ring 2 and a clamping mechanism, wherein the upper fixing ring 1 and the lower fixing ring 2 are coaxially distributed up and down and fixedly connected by a connecting mechanism, and the upper fixing ring 1 and the lower fixing ring 2 are respectively installed with fastening components for fastening the pipe 8; the clamping mechanism is installed on the connecting mechanism, and is used for clamping the pipe 8 inserted into the upper fixing ring 1 and the lower fixing ring 2.

[0042] During use, the two pipes 8 to be welded are respectively inserted from the upper fixing ring 1 and the lower fixing ring 2 between the upper fixing ring 1 and the lower fixing ring 2 until the ports fit together. At this time, the two fastening components clamp the two pipes 8 respectively; then, the clamping mechanism is used to clamp the two pipes 8 from the side to further ensure the stability of the docking of the two pipes 8, thereby ensuring the quality of the welding of the two pipes 8.

[0043] Preferably, in this embodiment, the upper fixing ring 1 and the lower fixing ring 2 are preferably circular rings with the same diameter.

[0044] This embodiment has a compact structure and a reasonable design, and can realize rapid butt welding of vertical pipes including culverts and shafts in complex environments, with better pipe butt welding quality, high efficiency, and time and labor saving.

[0045] Example 2

[0046] On the basis of Example 1, in this embodiment, the two fastening assemblies respectively include multiple pairs of fasteners, and the multiple pairs of fasteners are evenly spaced and installed in the upper fixing ring 1 or the lower fixing ring 2 along the circumference of the upper fixing ring 1 or the lower fixing ring 2.

[0047] This solution has a simple structure and a reasonable design. It uses multiple pairs of fasteners to clamp the two pipes, thereby ensuring the stability of the two pipes 8 and the accuracy of the butt connection.

[0048] Example 3

[0049] On the basis of Example 2, in this embodiment, each pair of the fasteners includes two fastening rods 3, one end of the two fastening rods 3 is rotatably connected to the inner wall of the upper fixing ring 1 or the lower fixing ring 2, and the two fastening rods 3 are connected to the upper fixing ring 1 or the lower fixing ring 2 through a spring 9.

[0050] The solution has a simple structure and a reasonable design. The elastic force of the two springs 9 is used to clamp the other ends of the two fastening rods 3 to the corresponding pipes 8, which is convenient for clamping.

[0051] In addition, the two springs 9 and the two fastening rods 3 can be used for pipes 8 of different diameters, and the method has strong versatility and is easy to use.

[0052] Preferably, in this embodiment, one end of the two fastening rods 3 is rotatably connected to the inner wall of the upper fixing ring 1 or the lower fixing ring 2 through a rotating shaft, and the part close to the other end is connected to the inner wall of the upper fixing ring 1 or the lower fixing ring 2 through a spring 9.

[0053] In addition, multiple pairs of fixing seats are evenly spaced on the inner walls of the upper fixing ring 1 and the lower fixing ring 2, and each pair of fixing seats is provided with a groove with both sides open. The two rotating shafts are respectively located in the two grooves and their two ends are rotatably connected to the two ends of the two grooves.

[0054] Example 4

[0055] On the basis of Example 2, in this embodiment, each pair of the fasteners includes an elastic frame 4 , and one end of the elastic frame 4 is fixedly connected to the inner wall of the upper fixing ring 1 or the lower fixing ring 2 .

[0056] This solution has a simple structure and a reasonable design. It utilizes a plurality of elastic frames 4 to clamp two pipes, thereby ensuring the stability of the two pipes 8 and the accuracy of the butt connection.

[0057] The above-mentioned Embodiment 3 and Embodiment 4 are parallel solutions.

[0058] Example 5

[0059] On the basis of Embodiment 4, in this embodiment, the elastic frame 4 is an arc-shaped structure.

[0060] The shape of the elastic frame 4 is reasonably designed to facilitate clamping the pipe 8 .

[0061] Alternatively, the elastic frame 4 may also preferably be a V-shaped structure.

[0062] Example 6

[0063] On the basis of Example 5, in this embodiment, two rollers 5 are relatively rotatably mounted on both sides of the other end of the elastic frame 4 , and the axial directions of the two rollers 5 are parallel to the axial directions of the upper fixing ring 1 and the lower fixing ring 2 .

[0064] The solution has a simple structure and a reasonable design. The roller 5 is used to convert the sliding friction between the pipeline and the elastic frame 4 into rolling friction, which is convenient for welding the pipeline and saves time and effort.

[0065] Preferably, in this embodiment, mounting grooves are provided on both sides of the other end of each elastic frame 4, and two rollers 5 are rotatably installed in the two mounting grooves respectively, and extend outside the notches of the two mounting grooves respectively so as to fit with the outer wall of the pipe 8.

[0066] Example 7

[0067] On the basis of the above embodiments, in this embodiment, the connecting mechanism includes a plurality of connecting rods 6, which are evenly distributed between the upper fixing ring 1 and the lower fixing ring 2 at circumferential intervals, and whose two ends are fixedly connected to the upper fixing ring 1 and the lower fixing ring 2 respectively.

[0068] This solution has a simple structure and a reasonable design. It uses a plurality of connecting rods 6 to achieve the connection between the upper fixing ring 1 and the lower fixing ring 2, and is easy to assemble.

[0069] Preferably, in this embodiment, the plurality of connecting rods 6 are preferably rods with circular or rectangular cross-sections.

[0070] Example 8

[0071] On the basis of Example 7, in this embodiment, the clamping mechanism includes a plurality of clamping assemblies, and the plurality of clamping assemblies are evenly spaced and installed on the plurality of connecting rods 6 along the length direction of the connecting rods 6 .

[0072] This solution has a simple structure and a reasonable design. It utilizes a plurality of clamping components to further clamp the two pipes 8 , thereby further ensuring the stability of the pipes 8 and thus ensuring the quality of the welding of the pipes 8 .

[0073] Preferably, in this embodiment, the clamping mechanism includes two clamping assemblies, which are respectively distributed between the upper fixing ring 1 and the lower fixing ring 2, and are respectively close to the upper fixing ring 1 and the lower fixing ring 2, and are respectively used to fix the two pipes 8 to be welded.

[0074] Example 9

[0075] On the basis of Example 8, in this embodiment, each of the clamping assemblies includes a plurality of clamping members, and the plurality of clamping members are installed on the plurality of connecting rods 6 at even circumferential intervals.

[0076] This solution has a simple structure and a reasonable design. It utilizes a plurality of clamping members to clamp the corresponding pipe 8 to ensure the stability of the pipe 8 and thus ensure the quality of the welding of the pipe 8 .

[0077] Preferably, in this embodiment, each of the clamping assemblies includes two clamping members, and the two clamping members are relatively distributed.

[0078] Alternatively, each of the clamping assemblies includes four clamping members, and the four clamping members are distributed opposite to each other in pairs.

[0079] Example 10

[0080] On the basis of Example 9, in this embodiment, the plurality of clamping members respectively include clamping screws 7, and the plurality of clamping screws 7 are respectively threadedly connected to the plurality of connecting rods 6, which respectively extend radially along the upper fixing ring 1 and the lower fixing ring 2.

[0081] This solution has a simple structure and a reasonable design. It utilizes the threaded connection between multiple clamping screws 7 and multiple connecting rods 6 to make one end of the multiple clamping screws 7 rest against the corresponding pipe 8, thereby clamping the pipe 8, ensuring the stability of the pipe 8, and further ensuring the quality of the pipe 8 welding.

[0082] Preferably, in this embodiment, corresponding connecting rods 6 among the plurality of connecting rods 6 are respectively provided with screw holes penetrating therethrough in the same number as the clamping screws 7 , and each clamping screw 7 is threadedly connected to the corresponding screw hole.

[0083] In addition, flexible blocks are fixedly connected to one end of each of the clamping screws 7 , and the flexible blocks can be used to prevent one end of each of the clamping screws 7 from directly and rigidly contacting the pipe 8 , thereby preventing the pipe 8 from being scratched.

[0084] Preferably, in this embodiment, the other ends of the plurality of clamping screws 7 are respectively fixedly connected with handles.

[0085] The working principle of the present invention is as follows:

[0086] During use, first, the two pipes 8 to be welded are respectively inserted from the upper fixing ring 1 and the lower fixing ring 2 between the upper fixing ring 1 and the lower fixing ring 2 until the ports fit together. At this time, the two fastening components clamp the two pipes 8 respectively; then, the multiple clamping screws 7 are manually rotated so that one end of them respectively rests against the two pipes 8 to clamp the two pipes 8, further ensuring the stability of the docking of the two pipes 8, thereby ensuring the quality of the welding of the two pipes 8.

[0087] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0088] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0089] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A small diameter pipe welding butt joint, characterized in that: The invention comprises an upper fixing ring (1), a lower fixing ring (2) and a clamping mechanism, wherein the upper fixing ring (1) and the lower fixing ring (2) are coaxially distributed up and down and fixedly connected by a connecting mechanism, and the upper fixing ring (1) and the lower fixing ring (2) are respectively provided with a fastening assembly for fastening a pipe (8); the clamping mechanism is installed on the connecting mechanism and is used for clamping the pipe (8) inserted into the upper fixing ring (1) and the lower fixing ring (2).

2. The small-diameter pipe welding butt joint according to claim 1, characterized in that: The two fastening assemblies respectively comprise a plurality of pairs of fasteners, and the plurality of pairs of fasteners are evenly spaced and installed in the upper fixing ring (1) or the lower fixing ring (2) along the circumference of the upper fixing ring (1) or the lower fixing ring (2).

3. The small-diameter pipe welding butt joint according to claim 2, characterized in that: Each pair of the fasteners comprises two fastening rods (3), one end of the two fastening rods (3) being rotatably connected to the inner wall of the upper fixing ring (1) or the lower fixing ring (2), and the two fastening rods (3) are connected to the upper fixing ring (1) or the lower fixing ring (2) via a spring (9).

4. The small-diameter pipe welding adapter according to claim 2, characterized in that: Each pair of fasteners comprises an elastic frame (4), one end of which is fixedly connected to the inner wall of the upper fixing ring (1) or the lower fixing ring (2).

5. The small-diameter pipe welding butt joint according to claim 4, characterized in that: The elastic frame (4) is in an arc-shaped structure.

6. The small-diameter pipe welding butt joint according to claim 5, characterized in that: Two rollers (5) are mounted on both sides of the other end of the elastic frame (4) so ​​as to rotate relative to each other, and the axial directions of the two rollers (5) are parallel to the axial directions of the upper fixing ring (1) and the lower fixing ring (2).

7. The small-diameter pipe welding adapter according to any one of claims 1 to 6, characterized in that: The connection mechanism comprises a plurality of connection rods (6), which are evenly spaced and circumferentially distributed between the upper fixing ring (1) and the lower fixing ring (2), and whose two ends are respectively fixedly connected to the upper fixing ring (1) and the lower fixing ring (2).

8. The small-diameter pipe welding butt joint according to claim 7, characterized in that: The clamping mechanism comprises a plurality of clamping assemblies, and the plurality of clamping assemblies are evenly spaced and installed on the plurality of connecting rods (6) along the length direction of the connecting rods (6).

9. The small-diameter pipe welding butt joint according to claim 8, characterized in that: Each of the clamping assemblies comprises a plurality of clamping members, and the plurality of clamping members are mounted on a plurality of connecting rods (6) at even circumferential intervals.

10. The small-diameter pipe welding adapter according to claim 9, characterized in that: The plurality of clamping members respectively comprise clamping screws (7), and the plurality of clamping screws (7) are respectively threadedly connected to the plurality of connecting rods (6), and respectively extend radially along the upper fixing ring (1) and the lower fixing ring (2).

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