Pipe butt joint mechanism and welding auxiliary device

Abstract

The utility model discloses a kind of pipeline butt joint mechanism and welding auxiliary device, it is related to pipeline welding field, including, fixed subassembly, it includes at least one arc plate with opening, the arc plate is encased in the end of first pipe fitting;And, positioning subassembly, it includes the support piece arranged on the arc plate, and the ejector rod of the support piece one end, the ejector rod one end can be with the outer surface of second pipe fitting and touch, to provide the clamping force of fixed second pipe fitting.The utility model is fixed by installing arc plate on first pipe fitting, and using the positioning subassembly on arc plate to abut fixed second pipe fitting, effectively improve the precision and stability of pipeline butt joint, the cooperation of arc plate and ejector rod, and the special structure of support piece, not only provide sufficient space for welding operation, but also can adapt to different diameter and shape pipeline, widen the application range of device.

Description

Technical Field

[0001] This utility model relates to the field of pipe welding, and in particular to a pipe docking mechanism and welding auxiliary device. Background Technology

[0002] During the construction of a nuclear power plant, welding of piping assemblies is required. In reality, compared to the prefabrication workshop, the on-site construction environment is poor and lacks the conditions for pipe alignment and welding.

[0003] Pipes are typically heavy, and welding generates high temperatures, making manual pipe securing during welding extremely difficult and dangerous. Furthermore, precise alignment of the ends of the two pipe fittings is crucial during welding, and stability must be maintained throughout the process; otherwise, welding defects may occur, potentially leading to safety hazards.

[0004] Therefore, there is an urgent need to propose a pipe docking mechanism and welding auxiliary device. Utility Model Content

[0005] Therefore, the technical problem this invention aims to solve is that pipes are typically heavy, and welding generates high temperatures, making manual pipe fixing for welding extremely difficult and dangerous. Furthermore, precise alignment of the ends of the two pipe fittings is required during welding.

[0006] The above-mentioned technical problems are solved by the following technical solution: This utility model proposes a pipe docking mechanism, which includes,

[0007] A fixing assembly comprising at least one arcuate plate with an opening, the arcuate plate being fitted onto the end of the first pipe fitting; and,

[0008] The positioning assembly includes a receiving member arranged on the arc-shaped plate and a push rod disposed at one end of the receiving member, one end of the push rod being able to abut against the outer surface of the second pipe to provide a clamping force for fixing the second pipe.

[0009] In a preferred embodiment of the positioning device of this utility model: the receiving member has a first end connected to the arc plate and a second end connected to the top rod. The distance between the receiving member and the center of the end face of the second pipe gradually increases from the first end to the second end on the side facing the second pipe, so as to provide space for the welding rod to travel during welding.

[0010] In a preferred embodiment of the positioning device of this utility model: the top rod has a connecting part, and the receiving member has a locking part that connects to the connecting part and can fix the top rod.

[0011] In a preferred embodiment of the positioning device of this utility model: the locking part is a threaded hole, and the connecting part is an external thread provided on the outer surface of the top rod and adapted to the threaded hole.

[0012] In a preferred embodiment of the positioning device of this utility model: the arc-shaped plate is an elastic plate, and if the fixing component includes an arc-shaped plate, the opening angle (α) of the arc-shaped plate is 0° to 60°.

[0013] In a preferred embodiment of the positioning device of this utility model: the arc plate is an elastic plate, and if the fixing component includes at least two arc plates, the opening angle (α) of the arc plate is greater than 180°.

[0014] The beneficial effects of this utility model are as follows: By fixing the arc-shaped plate onto the first pipe fitting and using the positioning component on the arc-shaped plate to abut and fix the second pipe fitting, the accuracy and stability of pipe connection are effectively improved. The cooperation between the arc-shaped plate and the push rod, as well as the special structure of the receiving component, not only provide ample space for welding operations but also adapt to pipes of different diameters and shapes, broadening the applicability of the device. Simultaneously, the threaded connection design between the push rod and the receiving component makes pipe alignment and fixing more flexible and reliable, simplifying pre-welding preparation and reducing labor intensity. Furthermore, this mechanism can stably fix the pipe during welding, reducing pipe displacement caused by external forces or welding heat, thereby improving welding quality and safety.

[0015] Therefore, the technical problem to be solved by this utility model is that the pipe assembly needs to remain stable during the pipe welding process.

[0016] The above-mentioned technical problems are solved by the following technical solution: This utility model proposes a grounding device, which includes any of the positioning devices mentioned above, and further includes,

[0017] The locking assembly includes a first mounting portion disposed at one end of the arc-shaped plate, a second mounting portion disposed at the other end of the arc-shaped plate, and a locking rod connecting the first mounting portion and the second mounting portion.

[0018] In a preferred embodiment of the welding auxiliary device of this utility model: the locking rod is a locking bolt, and the first mounting part and the second mounting part are provided with screw holes or through grooves adapted to the locking rod;

[0019] The locking rod passes through the through groove and is threadedly connected to the screw hole.

[0020] In a preferred embodiment of the welding auxiliary device of this utility model: the through groove is a long strip groove.

[0021] In a preferred embodiment of the welding auxiliary device of this utility model: the first mounting part or the second mounting part with the through groove is in the shape of a plate and is inclined toward the bolt head side of the locking rod.

[0022] The beneficial effects of this utility model are as follows: This utility model further introduces a locking component, which significantly enhances the stability and versatility of the pipe docking mechanism. The design of the locking rod, through the cooperation of the screw hole and the through groove, can quickly fix the arc plate on the first pipe fitting, ensuring the stability of the pipe during the welding process and effectively preventing the pipe from loosening or shifting. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments of this utility model will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this utility model and are not intended to limit the scope of this utility model. Wherein:

[0024] Figure 1 This diagram shows the overall structure of the pipe docking mechanism and welding auxiliary device described in this utility model;

[0025] Figure 2 A schematic diagram of the overall structure of the pipe docking mechanism of this utility model is shown;

[0026] Figure 3 This invention provides another perspective view of the overall structural schematic diagram of the pipe docking mechanism described herein;

[0027] Figure 4 This invention provides a schematic diagram of the structure of the receiving component and the top rod of the pipe docking mechanism.

[0028] Figure 5 A schematic diagram showing the disassembly of the receiving component and the top rod of the pipe docking mechanism described in this utility model is shown.

[0029] Figure 6 A schematic diagram showing the opening angle of a single arc-shaped plate in the pipe docking mechanism of this utility model is shown.

[0030] Figure 7 A schematic diagram showing the opening angles of multiple arc-shaped plates in the pipe docking mechanism of this utility model is provided.

[0031] Figure 8 A schematic diagram of the overall structure of the welding auxiliary device of this utility model is shown.

[0032] Figure 9 A partial cross-sectional view of the locking assembly of the welding auxiliary device of this utility model is shown. Detailed Implementation

[0033] To enable those skilled in the art to better understand this utility model, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0034] The terminology used in this invention refers to those general terms currently widely used in the art in consideration of the functionality of this invention; however, these terms may vary according to the intent, precedent, or new technology of those skilled in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of this invention. Therefore, the terminology used in this specification should not be construed as simple names, but rather based on the meaning of the terms and the overall description of this invention.

[0035] Reference Figures 1-3 This embodiment provides a pipe docking mechanism for fixing a first pipe fitting A and a second pipe fitting B during welding. It includes a fixing component 1, which includes at least one arc-shaped plate 11 with an opening, the arc-shaped plate 11 being fitted onto the end of the first pipe fitting A; and a positioning component 2, which includes a receiving member 21 arranged on the arc-shaped plate 11, and a push rod 22 disposed at one end of the receiving member 21, one end of the push rod 22 being able to abut against the outer surface of the second pipe fitting B to provide a clamping force for fixing the second pipe fitting B.

[0036] Specifically, during welding, the workers need to accurately align the port of the first pipe fitting A and the port of the second pipe fitting B. Since the pipe fittings are heavy and the welding temperature is high, they need to be placed on a support frame on site. Then, the fixing component 1 is installed on the first pipe fitting A, and the positioning mechanism on the fixing component 1 is used to abut against the outer surface of the second pipe fitting B to accurately align the two ports of the first pipe fitting A and the second pipe fitting B. Then, the workers can proceed with the welding, eliminating the need for them to manually fix the pipes during welding.

[0037] Reference Figure 3 and Figure 4 This embodiment provides a pipe docking mechanism. The receiving member 21 has a first end 211 connected to the arc plate 11 and a second end 212 connected to the top rod 22. The distance from the center of the end face of the second pipe B to the receiving member 21 on the side facing the second pipe B gradually increases from the first end 211 to the second end 212, so as to provide space for the welding rod to travel during welding. When the first pipe A and the second pipe B are on a straight line, this design can provide the operator with welding operation space. When the first pipe A and the second pipe B are not on a straight line, the special design of the receiving member 21 can also provide bending space between the first pipe A and the second pipe B, thereby broadening the application range of this device.

[0038] Reference Figure 4 and Figure 5In this application, a pipe connection mechanism is provided: a push rod 22 has a connecting part 221, and a receiving part 21 has a locking part 222 that connects to the connecting part 221 and can fix the push rod 22. The relative position between the push rod 22 and the receiving part 21 is adjustable. Specifically, the locking part 222 is a threaded hole, and the connecting part 221 is an external thread provided on the outer surface of the push rod 22 and adapted to the threaded hole. In this embodiment, there are four sets of push rods 22 and receiving parts 21, which are evenly distributed on the outer surface of the first pipe A. When using the positioning component 2, the push rod 22 is rotated through the connecting part 221 and the locking part 222 to adjust the relative position between the push rod 22 and the outer surface of the second pipe B, so that the weld of the first pipe A and the second pipe B is aligned and maintained in the aligned state.

[0039] Reference Figure 3 and Figure 6 In some embodiments, the arc plate 11 is an elastic plate. If the fixing assembly 1 includes an arc plate 11, the opening angle (α) of the arc plate 11 is 0° to 60°. In use, the single arc plate 11 is clamped and fixed on the first pipe A.

[0040] Reference Figure 7 and Figure 8 In some embodiments, the arc plate 11 is an elastic plate. If the fixing assembly 1 includes at least two arc plates 11, the opening angle (α) of the arc plate 11 is greater than 180°. In use, multiple arc plates 11 are clamped and fixed on the first pipe A.

[0041] Reference Figures 1-8 When connecting pipes, first clamp and fix the arc plate 11 near the port of the first pipe fitting A close to the port of the second pipe fitting B, and make the receiving part 21 and the push rod 22 face the second pipe. Adjust the position of the push rod 22 by the engagement of the threaded hole and the external thread. Use the multiple push rods 22 distributed around the second pipe fitting B to fix the position of the second pipe fitting B, so that the ports of the two pipe fittings are accurately connected. After use, the staff can loosen the push rod 22 to disassemble the mechanism.

[0042] Reference Figure 1 and Figure 8 This embodiment provides a welding auxiliary device, including any of the pipe docking mechanisms described above; and a locking assembly 3, which is used to connect two adjacent arc plate 11 ports so that the arc plate 11 can be stably installed on the first pipe fitting A. The locking assembly 3 includes a first mounting part 31 disposed at one end of the arc plate 11, a second mounting part 32 disposed at the other end of the arc plate 11, and a locking rod 33 connecting the first mounting part 31 and the second mounting part 32.

[0043] Reference Figure 8In one embodiment provided in this application: the locking rod 33 is a locking bolt, and the first mounting part 31 and the second mounting part 32 are provided with screw holes 311 or through grooves 321 adapted to the locking rod 33; when installing the locking rod 33, the locking rod 33 first passes through the through groove 321, and then the locking rod 33 is rotated and passes through the screw hole 311. One side of the locking rod 33 is locked by a threaded connection, and the other part of the locking rod 33 is restricted by the through groove 321; when there is only one arc plate 11, the locking rod 33 is set on the first mounting part 31 and the second mounting part 32 at both ends of the single arc plate 11. When there are at least two arc plates 11, the number of gaps between the arc plates 11 is the same as the number of arc plates 11, and a corresponding number of locking rods 33 are set to fix multiple arc plates 11 and to fasten multiple arc plates 11 together on the first pipe A.

[0044] Furthermore, refer to Figure 9 The through groove 321 is an elongated groove. When the first mounting part 31 or the second mounting part 32 of the through groove 321 is not perpendicular to the locking rod 33, the shape of the elongated groove can provide space for the locking rod 33 to pass through the through groove 321.

[0045] Reference Figure 8 and Figure 9 In some embodiments, the first mounting portion 31 or the second mounting portion 32 having the through groove 321 is plate-shaped and inclined toward the bolt head side of the locking rod 33, so that the locking rod 33 can restrict the first mounting portion 31 or the second mounting portion 32.

[0046] Furthermore, after welding is completed, the locking rod 33 can be screwed out to remove the arc plate 11.

[0047] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of this utility model.

Claims

1. A pipe docking mechanism, characterized in that: include, The fixing assembly (1) includes at least one arcuate plate (11) with an opening, said arcuate plate (11) being fitted onto the end of the first pipe fitting A; and, The positioning assembly (2) includes a receiving member (21) arranged on the arc plate (11) and a push rod (22) disposed at one end of the receiving member (21), one end of the push rod (22) being able to abut against the outer surface of the second pipe B to provide a clamping force for fixing the second pipe B; The receiving part (21) has a first end (211) connected to the arc plate (11) and a second end (212) connected to the top rod (22). The distance from the center of the end face of the second pipe B to the receiving part (21) gradually increases from the first end (211) to the second end (212) on the side of the receiving part (21) facing the second pipe B, so as to provide space for the welding rod to travel during welding. The arc-shaped plate (11) is an elastic plate. If the fixing component (1) includes an arc plate (11), the opening angle (α) of the arc plate (11) is 0°~60°; If the fixing component (1) includes at least two arc-shaped plates (11), the opening angle (α) of the arc-shaped plates (11) is greater than 180°.

2. The pipe docking mechanism according to claim 1, characterized in that: The top rod (22) has a connecting part (221), and the receiving part (21) has a locking part (222) that connects to the connecting part (221) and can fix the top rod (22).

3. The pipe docking mechanism according to claim 2, characterized in that: The locking part (222) is a threaded hole, and the connecting part (221) is an external thread provided on the outer surface of the top rod (22) and adapted to the threaded hole.

4. A welding auxiliary device, characterized in that: Includes the pipe docking mechanism as described in any one of claims 1 to 3; and, The locking assembly (3) includes a first mounting part (31) disposed at one end of the arc plate (11), a second mounting part (32) disposed at the other end of the arc plate (11), and a locking rod (33) connecting the first mounting part (31) and the second mounting part (32).

5. The welding auxiliary device according to claim 4, characterized in that: The locking rod (33) is a locking bolt, and the first mounting part (31) and the second mounting part (32) are provided with screw holes (311) or through grooves (321) that are adapted to the locking rod (33). The locking rod (33) passes through the through groove (321) and is threaded into the screw hole (311).

6. The welding auxiliary device according to claim 5, characterized in that: The through groove (321) is a long strip groove.

7. The welding auxiliary device according to claim 6, characterized in that: The first mounting portion (31) or the second mounting portion (32) having a through groove (321) is plate-shaped and inclined toward the bolt head side of the locking rod (33).

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