A pipe butt welding auxiliary tool

Abstract

The utility model belongs to pipeline welding technical field provides a kind of pipeline set-up butt welding auxiliary tool, it includes: first embrace board, first embrace board side swing joint has second embrace board, first embrace board, second embrace board side is all set with welding groove, first embrace board side fixed mounting has fixed rod, second embrace board is close to fixed rod side fixed mounting has two sleeves, two the sleeve is all set in fixed rod outside, first embrace board is away from fixed rod side fixed mounting has connecting plate, connecting plate is inserted with bolt by aperture, the nut is screw-mounted on the outside of bolt;The utility model adopts integrated clamping structure, can firmly fix two root to be welded pipeline in correct position in short time, operator only needs to complete the installation and removal of tool, can release both hands and concentrate on welding operation, greatly reduces the dependence on artificial support, improves overall construction efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline welding technology, specifically relating to an auxiliary tool for pipeline assembly welding. Background Technology

[0002] In modern industrial and construction engineering, pipeline systems are widely used in many industries such as petroleum, natural gas, chemical, power, and building water supply and drainage. With the continuous expansion of project scale and the continuous improvement of technical requirements, higher standards have been put forward for the quality of pipeline installation and connection. Among them, pipeline welding, as the most critical link in pipeline connection, directly affects the sealing performance, pressure resistance and service life of the entire system.

[0003] Traditional pipe welding methods typically rely on manual operation, especially in field construction sites or high-altitude work environments. Due to the lack of specialized auxiliary tools, operators often need to rely on experience to assemble and clamp the pipes. First, because the pipes themselves are heavy, especially in the construction of large-diameter high-pressure transmission pipelines, it is difficult for a single person to stably hold two pipes to be welded upright. Two or more people must work together, which not only increases labor costs but also reduces work efficiency. Second, during the welding process, natural hand tremors or fatigue from prolonged operation can easily cause the pipes to shift, affecting the alignment accuracy of the weld joint and causing welding defects such as incomplete penetration, undercut, and misalignment. Third, manual support poses certain safety hazards, especially when working at heights or in confined spaces. If the pipes slip or shift, it can easily lead to safety accidents and threaten the personal safety of construction workers. Utility Model Content

[0004] The purpose of this utility model is to provide an auxiliary tool for pipe assembly welding to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A pipe assembly welding auxiliary tool, comprising:

[0007] A first retaining plate is connected to a second retaining plate on one side. Both the first and second retaining plates have welding grooves on one side. A fixing rod is fixedly installed on one side of the first retaining plate. Two sleeves are fixedly installed on the side of the second retaining plate near the fixing rod, and both sleeves are fitted onto the outside of the fixing rod. A connecting plate is fixedly installed on the side of the first retaining plate away from the fixing rod. A bolt is inserted into the connecting plate through an opening, and a nut is threaded onto the outside of the bolt. A U-shaped plate is fixedly installed on the side of the second retaining plate away from the sleeves. The U-shaped plate is correspondingly arranged with the connecting plate. The bolt passes through one side of the U-shaped plate, and the nut abuts against the side of the U-shaped plate away from the connecting plate.

[0008] A limiting mechanism is provided on one side of a U-shaped plate. The limiting mechanism includes a frame fixedly installed on one side of the U-shaped plate, a groove fixedly installed on one side of the U-shaped plate, a limiting rod movably installed inside the frame, a spring connected to one side of the limiting rod, one end of the limiting rod being inserted into the groove, and the limiting rod slidingly fitting against the inner wall of the groove.

[0009] Preferably, a frame is fixedly installed on the side of the U-shaped plate away from the second retaining plate, and a groove is fixedly installed on the side of the U-shaped plate away from the second retaining plate. The groove and the frame are respectively located at the two ends of the U-shaped plate, and a limit rod is inserted inside the frame.

[0010] Preferably, a force-bearing plate is fixedly installed at the end of the limiting rod away from the groove, and a spring connects the force-bearing plate and the U-shaped plate.

[0011] Preferably, two limiting grooves are symmetrically opened on the outer side of the frame, and a limiting block is inserted into each of the two limiting grooves. The limiting block slides against the inner wall of the limiting groove, and the side of the limiting block closest to the inside of the frame is fixedly connected to a limiting rod.

[0012] Preferably, a first magnet is fixedly installed at one end of the limiting rod near the groove, and a second magnet is fixedly installed inside the groove. The first magnet and the second magnet are arranged correspondingly, and the first magnet and the second magnet have opposite magnetic properties.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model adopts an integrated clamping structure, which can firmly fix two pipes to be welded in the correct position in a short time. The operator only needs to complete the installation and removal of the tool to free up his hands to focus on the welding operation, which greatly reduces the dependence on manual support and improves the overall construction efficiency. Through the arc structure design of the first clamping plate and the second clamping plate, they are closely attached to the outer wall of the pipe to form a stable wrapping clamping structure. The bolt fastening structure between the connecting plate and the U-shaped plate enables the two clamping plates to apply clamping force evenly, avoiding pipe deformation or misalignment caused by single-point force.

[0015] (2) In actual welding operations, the high temperature and vibration generated by the welding arc, as well as the slight rotation or pushing and pulling movements that the operator may make when adjusting the welding position, may cause the connecting bolts in the fixture to loosen or even fall off. This application achieves double locking of the bolt connection part by setting a limiting mechanism. Under normal conditions, the limiting rod is automatically inserted into the groove under the action of the spring to form a physical block to prevent the bolt from coming out of the U-shaped plate. Even if the bolt is slightly displaced due to external force during the welding process, the existence of the limiting rod can also play a blocking role to prevent it from completely leaving the fixture system, thereby maintaining the integrity of the entire clamping structure and ensuring a stable clamping state during the welding process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0018] Figure 3 This is a schematic diagram of the installation structure of the limiting rod of this utility model.

[0019] In the diagram: 1. First retaining plate; 11. Second retaining plate; 12. Welding groove; 13. Fixing rod; 14. Sleeve; 15. Connecting plate; 16. Bolt; 17. Nut; 18. U-shaped plate; 2. Limiting mechanism; 21. Frame; 22. Groove; 23. Limiting rod; 24. Force plate; 25. Spring; 26. Limiting groove; 27. Limiting block; 28. Magnet No. 1; 29. ​​Magnet No. 2. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1:

[0022] Please see Figure 1 - Figure 3 As shown, a pipe assembly welding auxiliary tool includes:

[0023] A first retaining plate 1 is movably connected to a second retaining plate 11 on one side. Both the first retaining plate 1 and the second retaining plate 11 have welding grooves 12 on one side. A fixing rod 13 is fixedly installed on one side of the first retaining plate 1. Two sleeves 14 are fixedly installed on the side of the second retaining plate 11 near the fixing rod 13. Both sleeves 14 are fitted onto the outside of the fixing rod 13. A connecting plate 15 is fixedly installed on the side of the first retaining plate 1 away from the fixing rod 13. A bolt 16 is inserted into the connecting plate 15 through an opening. A nut 17 is threaded on the outside of the bolt 16. A U-shaped plate 18 is fixedly installed on the side of the second retaining plate 11 away from the sleeves 14. The U-shaped plate 18 is correspondingly set with the connecting plate 15. The bolt 16 passes through one side of the U-shaped plate 18, and the nut 17 abuts against the side of the U-shaped plate 18 away from the connecting plate 15.

[0024] The limiting mechanism 2 is located on one side of the U-shaped plate 18. The limiting mechanism 2 includes a frame 21 fixedly installed on one side of the U-shaped plate 18, a groove 22 fixedly installed on one side of the U-shaped plate 18, a limiting rod 23 movably installed inside the frame 21, a spring 25 connected to one side of the limiting rod 23, one end of the limiting rod 23 being inserted into the groove 22, and the limiting rod 23 slidingly fitting against the inner wall of the groove 22.

[0025] As can be seen from the above, both the first clamping plate 1 and the second clamping plate 11 are arc-shaped structures that fit the outer wall of the pipe and can fit tightly against the pipe to form a wrapping clamping force. The two clamping plates are respectively set on both sides of the connection of the pipe to be welded, playing the main fixing role. The design of the welding groove 12 ensures that the welding torch can smoothly enter the welding position without being blocked by the clamp, ensuring the accessibility and integrity of the welding operation. The fixing rod 13 and the sleeve 14 form a simple hinge structure, allowing the two clamping plates to rotate around the fixing rod 13 for easy opening and closing adjustment. The bolt 16 passes through one side of the connecting plate 15 and extends to one side of the U-shaped plate 18 on the second clamping plate 11. After the bolt 16 passes through the U-shaped plate 18, it is tightened by the nut 17. By tightening the nut 17, the distance between the two clamping plates is compressed, thereby achieving the clamping of the pipe.

[0026] Specifically, a frame 21 is fixedly installed on the side of the U-shaped plate 18 away from the second retaining plate 11, and a groove 22 is fixedly installed on the side of the U-shaped plate 18 away from the second retaining plate 11. The groove 22 and the frame 21 are respectively located at the two ends of the U-shaped plate 18. A limit rod 23 is inserted inside the frame 21. A force-bearing plate 24 is fixedly installed on the end of the limit rod 23 away from the groove 22. A spring 25 connects the force-bearing plate 24 and the U-shaped plate 18. Symmetrical openings are provided on the outer side of the frame 21. Two limiting grooves 26 are provided, and limiting blocks 27 are inserted into each limiting groove 26. The limiting blocks 27 slide against the inner wall of the limiting groove 26. The side of the limiting block 27 near the inside of the frame 21 is fixedly connected to the limiting rod 23. A first magnet 28 is fixedly installed at the end of the limiting rod 23 near the groove 22. A second magnet 29 is fixedly installed inside the groove 22. The first magnet 28 and the second magnet 29 are set correspondingly, and the first magnet 28 and the second magnet 29 have opposite magnetic properties.

[0027] As can be seen from the above, the default state of the limiting rod 23 is that it is inserted into the groove 22. At this time, the spring 25 is under slight force, the opening of the U-shaped plate 18 is blocked, and the bolt 16 cannot be removed from the U-shaped plate 18. When it is necessary to remove the bolt 16, simply pull the limiting rod 23 down to disengage it from the groove 22. Then the bolt 16 can be removed from the inside of the U-shaped plate 18. After releasing the limiting rod 23, it will be inserted back into the groove 22 under the reset action of the spring 25. In step 2, the bolt 16 is further limited. At the same time, a first magnet 28 is provided at the end of the limiting rod 23, and a second magnet 29 is provided inside the groove 22. The two magnets have opposite magnetic attraction and can attract each other, which further increases the stability of the limiting rod 23 and ensures that the bolt 16 will not come off the U-shaped plate 18 during the welding process, thus ensuring the stable clamping of the pipe. The limiting groove 26 and the limiting block 27 can prevent the limiting rod 23 from coming off the frame 21 when the limiting rod 23 is pulled.

[0028] In use, first connect the two pipes, then clamp the first clamping plate 1 and the second clamping plate 11 at the connection point of the two pipes. Then pull the limiting rod 23, which disengages from the groove 22, and the spring 25 is under tension. Next, pass the bolt 16 through the U-shaped plate 18, and then release the limiting rod 23. Under the action of the spring 25, the limiting rod 23 is inserted into the groove 22. At the same time, the two magnets at the end of the limiting rod 23 and inside the groove 22 attract each other, further fixing the limiting rod 23. At position 3, the opening of the U-shaped plate 18 is blocked by the limiting rod 23, and the bolt 16 cannot be removed from the U-shaped plate 18. Finally, tighten the nut 17 so that the two clamping plates gradually tighten under the action of the bolt 16 and the nut 17, tightly clamping the pipe and achieving stable clamping of the pipe. When it is necessary to remove the bolt 16, pull down the limiting rod 23 to overcome the elastic force of the spring 25 and the attraction force of the magnet, so that the limiting rod 23 is removed from the groove 22, and the bolt 16 can be removed from the inside of the U-shaped plate 18.

[0029] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pipe assembly welding auxiliary tool, characterized in that, include: A first retaining plate (1) is movably connected to a second retaining plate (11) on one side. Welding grooves (12) are provided on one side of both the first retaining plate (1) and the second retaining plate (11). A fixing rod (13) is fixedly installed on one side of the first retaining plate (1). Two sleeves (14) are fixedly installed on the side of the second retaining plate (11) near the fixing rod (13). Both sleeves (14) are fitted onto the outside of the fixing rod (13). The first retaining plate (1) is located away from the fixing rod (13). A connecting plate (15) is fixedly installed on one side of the second clamping plate (11). A bolt (16) is inserted into the connecting plate (15) through an opening. A nut (17) is threaded on the outside of the bolt (16). A U-shaped plate (18) is fixedly installed on the side of the second clamping plate (11) away from the sleeve (14). The U-shaped plate (18) is correspondingly set with the connecting plate (15). The bolt (16) passes through one side of the U-shaped plate (18). The nut (17) abuts against the side of the U-shaped plate (18) away from the connecting plate (15). A limiting mechanism (2) is provided on one side of a U-shaped plate (18). The limiting mechanism (2) includes a frame (21) fixedly installed on one side of the U-shaped plate (18). A groove (22) is fixedly installed on one side of the U-shaped plate (18). A limiting rod (23) is movably installed inside the frame (21). A spring (25) is connected to one side of the limiting rod (23). One end of the limiting rod (23) is inserted into the groove (22). The limiting rod (23) slides against the inner wall of the groove (22).

2. The pipe assembly welding auxiliary tool according to claim 1, characterized in that, A frame (21) is fixedly installed on the side of the U-shaped plate (18) away from the second clamping plate (11), and a groove (22) is fixedly installed on the side of the U-shaped plate (18) away from the second clamping plate (11). The groove (22) and the frame (21) are respectively located at the two ends of the U-shaped plate (18), and a limit rod (23) is inserted inside the frame (21).

3. The pipe assembly welding auxiliary tool according to claim 2, characterized in that, A force-bearing plate (24) is fixedly installed at the end of the limiting rod (23) away from the groove (22), and a spring (25) is connected between the force-bearing plate (24) and the U-shaped plate (18).

4. The pipe assembly welding auxiliary tool according to claim 3, characterized in that, Two limiting grooves (26) are symmetrically provided on the outer side of the frame (21). A limiting block (27) is inserted into each of the two limiting grooves (26). The limiting block (27) slides against the inner wall of the limiting groove (26). The side of the limiting block (27) closest to the inside of the frame (21) is fixedly connected to the limiting rod (23).

5. The pipe assembly welding auxiliary tool according to claim 3, characterized in that, A first magnet (28) is fixedly installed on one end of the limiting rod (23) near the groove (22), and a second magnet (29) is fixedly installed inside the groove (22). The first magnet (28) and the second magnet (29) are arranged correspondingly, and the first magnet (28) and the second magnet (29) have opposite magnetic properties.

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