Special-shaped welded pipe

By introducing pulling and reinforcing components into the irregularly shaped welded pipe, combined with the positioning frame and inclined surface design, the problems of inconvenience in hand support and tilting during welding are solved, achieving efficient and stable welding results and long-life welding quality.

CN224169135UActive Publication Date: 2026-04-28JIANGDU WEIZHENG HARDWARE JOBBING FOUNDRY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGDU WEIZHENG HARDWARE JOBBING FOUNDRY
Filing Date
2025-05-26
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

When welding irregularly shaped pipes, it is inconvenient for workers to hold the pipe by hand and the welding is prone to tilting due to hand tremors. Existing technology cannot guarantee welding accuracy and stability.

Method used

An irregularly shaped welded pipe was designed, which uses a pulling component and a reinforcing component in conjunction with a positioning frame. Through the design of avoidance groove, sliding groove and 45° inclined plane, automatic positioning and stable fixation are achieved, reducing manual intervention and enhancing structural stability.

Benefits of technology

It improves welding efficiency and finished product quality, ensures welding precision, reduces the risk of misalignment, enhances ease of operation, and extends service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a special-shaped welded pipe, and relates to the technical field of welded pipe welding, the special-shaped welded pipe comprises a first welded pipe, a second welded pipe is arranged on one side of the top of the first welded pipe, a receding groove is formed in the top of the first welded pipe and is close to one side of the second welded pipe, and a stabilizing mechanism is arranged in the first welded pipe. The stabilizing mechanism comprises a pulling assembly and a reinforcing assembly, the pulling assembly and the reinforcing assembly are used in cooperation, the pulling assembly comprises fixing plates, the fixing plates are symmetrically and fixedly connected to the interior of the first welded pipe, and a sliding column is fixedly connected between the two fixing plates. According to the special-shaped welded pipe, the welding alignment precision is optimized through the pulling assembly and the reinforcing assembly, the second welded pipe is positioned and fixed through the positioning frame, manual intervention is reduced, the second welded pipe does not need to be manually fixed, meanwhile, the structural stability is enhanced, and the welding efficiency and the finished product quality are improved.
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Description

Technical Field

[0001] This utility model relates to the field of welded pipe technology, and in particular to an irregularly shaped welded pipe. Background Technology

[0002] Shaped welded pipes are non-circular cross-section steel pipes manufactured through welding processes (such as high-frequency resistance welding and submerged arc welding). Their shapes are customized according to their applications, and common types include square, rectangular, elliptical, triangular, trapezoidal, or polygonal shapes. Compared with ordinary round pipes, shaped welded pipes have stronger structural support, better spatial adaptability, and better aesthetics, and are widely used in building frames (such as steel structures), machinery manufacturing, automotive parts, furniture, and other fields.

[0003] Its production requires special molds or roll forming equipment, taking into account both strength and lightweight requirements. It is an extension and upgrade of the function of round pipes. When welding existing welded pipes, workers usually hold the welded pipe with one hand and operate the welding gun with the other hand, so that the two welded pipes can be welded together.

[0004] Based on the aforementioned technologies, the applicant believes that during the welding process, it is inconvenient for workers to hold the welding pipe by hand, and the welding process may be tilted due to the worker's hand shaking. In response to the above problems, we have introduced a special-shaped welding pipe. Utility Model Content

[0005] This utility model discloses an irregularly shaped welded pipe, which aims to solve the technical problems that make welding inconvenient because workers hold the pipe by hand, and that the welding process may be tilted due to tremors in the workers' hands.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A type of shaped welded pipe includes a first welded pipe and a second welded pipe on one side of the top of the first welded pipe. A clearance groove is formed on the top of the first welded pipe and on the side closer to the second welded pipe. A stabilizing mechanism is provided inside the first welded pipe. The stabilizing mechanism includes a pulling component and a reinforcing component, which cooperate with each other. The pulling component includes a fixing plate, which is symmetrically fixedly connected inside the first welded pipe. A sliding column is fixedly connected between the two fixing plates. A pulling block is slidably connected to the outside of the sliding column. A compression spring is sleeved on the outside of the sliding column. A rotating shaft is symmetrically rotatably connected to the outside of the pulling block. A positioning frame is rotatably connected to the outside of the two rotating shafts. A pulling plate is fixedly connected to the top of the pulling block.

[0008] By pulling and reinforcing the components to optimize welding alignment accuracy, and using a positioning frame to position and fix the No. 2 welded pipe, manual intervention is reduced, eliminating the need for manual fixing of the No. 2 welded pipe. This also enhances structural stability, improves welding efficiency, and increases finished product quality.

[0009] In a preferred embodiment, the reinforcing component includes a reinforcing frame, which is equidistantly fixed inside the first welded pipe and the second welded pipe. The reinforcing frame is X-shaped, and a weight-reducing groove is provided inside the reinforcing frame to reduce the overall weight of the welded pipe.

[0010] The reinforcing components employ X-shaped reinforcing frames, evenly distributed inside welded pipes No. 1 and No. 2, enhancing the overall structural strength and preventing welding deformation. The weight-reducing grooves reduce the weight of the welded pipes while maintaining strength, lowering material costs and making them suitable for applications requiring lightweight construction.

[0011] In a preferred embodiment, the inner wall of the first welded pipe is provided with grooves on both sides, and a sliding rod is fixedly connected inside each of the two grooves. The pulling block and the sliding rod are slidably connected.

[0012] Sliding grooves are opened on both sides of the inner wall of the No. 1 welded pipe, and the sliding rod is slidably connected to the pulling block, so that the pulling component runs more smoothly, avoids deviation, ensures that the welded pipe remains stably aligned during welding, and improves the welding quality.

[0013] In a preferred embodiment, the ends of the No. 1 weld pipe and the No. 2 weld pipe that come into contact with each other are both inclined, and both inclined surfaces are 45°. The end of the No. 1 weld pipe near the No. 2 weld pipe is provided with a positioning slot, and the positioning slot and the No. 2 weld pipe are used in conjunction with each other.

[0014] The contact ends of welded pipe No. 1 and welded pipe No. 2 are designed with a 45° bevel, which, together with the positioning slot, makes the welded pipe docking more precise, reduces the risk of welding misalignment, and improves welding efficiency.

[0015] In a preferred embodiment, the top of the pull plate is provided with a circular pull groove.

[0016] The circular pull groove on the top of the pull plate makes it easier for operators to apply force, making it easier to adjust the position of the welded pipe and improving the convenience of operation.

[0017] In a preferred embodiment, the outer walls of both the No. 1 welded pipe and the No. 2 welded pipe are provided with an anti-rust coating, the anti-rust coating using electroplated zinc as the main material.

[0018] The outer walls of welded pipes No. 1 and No. 2 are coated with an electroplated zinc anti-rust coating to improve corrosion resistance, extend service life, and make them suitable for humid or outdoor environments.

[0019] The irregularly shaped welded pipe provided by this utility model has the following advantages:

[0020] Firstly, by pulling and reinforcing the components to optimize welding alignment accuracy, a positioning frame is used to position and fix the No. 2 welded pipe, reducing manual intervention and eliminating the need for manual fixing of the No. 2 welded pipe. This also enhances structural stability, improves welding efficiency, and increases the quality of the finished product.

[0021] Secondly, grooves are cut on both sides of the inner wall of welded pipe No. 1, and the sliding rod is slidably connected to the pulling block, making the pulling assembly run more smoothly, avoiding deviation, ensuring that the welded pipe remains stably aligned during welding, and improving welding quality. The contact ends of welded pipe No. 1 and welded pipe No. 2 adopt a 45° bevel design, combined with positioning slots, making the welded pipe docking more precise, reducing the risk of welding misalignment, and improving welding efficiency. The circular pulling groove on the top of the pulling plate makes it easier for operators to apply force, making it easier to adjust the position of the welded pipe and improving operational convenience. The outer walls of welded pipe No. 1 and welded pipe No. 2 are coated with an electroplated zinc anti-rust coating, improving corrosion resistance, extending service life, and making them suitable for humid or outdoor environments. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of an irregularly shaped welded pipe proposed in this utility model.

[0023] Figure 2 This is a three-dimensional schematic diagram of an irregularly shaped welded pipe proposed in this utility model.

[0024] Figure 3 This is a three-dimensional cross-sectional view of an irregularly shaped welded pipe proposed in this utility model.

[0025] Figure 4 This is a three-dimensional cross-sectional view of an irregularly shaped welded pipe proposed in this utility model.

[0026] Figure 5 This is a three-dimensional schematic diagram of a reinforcing frame for an irregularly shaped welded pipe proposed in this utility model.

[0027] Figure 6 This utility model proposes an irregularly shaped welded pipe. Figure 4 A magnified diagram of point A.

[0028] In the attached diagram: 1. Welded pipe No. 1; 2. Welded pipe No. 2; 3. Clearance groove; 41. Fixing plate; 42. Sliding column; 43. Pulling block; 44. Compression spring; 45. Pulling plate; 46. Circular pull groove; 47. Rotating shaft; 48. Positioning frame; 5. Sliding groove; 6. Sliding rod; 7. Reinforcing frame; 8. Weight reduction groove; 9. Positioning slot. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0030] The irregularly shaped welded pipe disclosed in this utility model is mainly used in welded pipe welding scenarios.

[0031] Reference Figures 1-6 A type of shaped welded pipe includes a first welded pipe 1, a second welded pipe 2 located on one side of the top of the first welded pipe 1, a clearance groove 3 located on the top of the first welded pipe 1 and on the side close to the second welded pipe 2, a stabilizing mechanism inside the first welded pipe 1, the stabilizing mechanism including a pulling component and a reinforcing component, the pulling component and the reinforcing component working together, the pulling component including a fixing plate 41, the fixing plate 41 being symmetrically fixedly connected inside the first welded pipe 1, a sliding column 42 being fixedly connected between the two fixing plates 41, a pulling block 43 being slidably connected to the outside of the sliding column 42, a compression spring 44 being sleeved on the outside of the sliding column 42, a rotating shaft 47 being symmetrically rotatably connected to the outside of the pulling block 43, a positioning frame 48 being rotatably connected to the outside of the two rotating shafts 47, and a pulling plate 45 being fixedly connected to the top of the pulling block 43. The reinforcing assembly includes a reinforcing frame 7, which is equidistantly fixed inside welded pipe 1 and welded pipe 2. The reinforcing frame 7 is X-shaped, and a weight-reducing groove 8 is provided inside the reinforcing frame 7 to reduce the overall weight of the welded pipe. Sliding grooves 5 are provided on both sides of the inner wall of welded pipe 1, and sliding rods 6 are fixedly connected inside both sliding grooves 5. The pulling block 43 and the sliding rods 6 are slidably connected.

[0032] In this embodiment: During welding, the operator inserts the beveled end of weld pipe 2 into the positioning slot 9 of weld pipe 1. Due to the presence of the clearance groove 3, the pull plate 45 moves more smoothly. The compression spring 44 in the pull assembly pushes the pull block 43 to slide along the slide column 42, driving the rotating shaft 47 and the positioning frame 48 to rotate. The positioning frame 48 pulls weld pipe 2. Since the bottom of weld pipe 2 is inserted into the positioning slot 9, weld pipe 2 is pulled and fixed to the top of weld pipe 1 by the positioning frame 48, keeping the welding surface stable. By optimizing the welding alignment accuracy through the pull assembly and the reinforcing assembly, and using the positioning frame 48 to position and fix weld pipe 2, manual intervention is reduced, eliminating the need for manual fixing of weld pipe 2. At the same time, structural stability is enhanced, welding efficiency is improved, and product quality is increased.

[0033] In the above technical solution, considering the inconvenience of welding due to the worker holding the welding pipe, and the possibility of tilting during welding due to the worker's hand tremor, the specific operation is as follows:

[0034] Reference Figures 1-6 In a preferred embodiment, the ends of welded pipe 1 and welded pipe 2 that are in contact with each other are both beveled at 45°. A positioning slot 9 is provided at the end of welded pipe 1 near welded pipe 2, and the positioning slot 9 and welded pipe 2 cooperate with each other. A circular pulling groove 46 is provided at the top of the pulling plate 45. The outer walls of both welded pipe 1 and welded pipe 2 are coated with an anti-rust coating, which uses electroplated zinc as the main material.

[0035] In this embodiment, grooves 5 are formed on both sides of the inner wall of welded pipe 1, and the sliding rod 6 is slidably connected to the pulling block 43, making the pulling assembly run more smoothly, avoiding deviation, ensuring that the welded pipe remains stably aligned during welding, and improving welding quality. The contact ends of welded pipe 1 and welded pipe 2 adopt a 45° bevel design, combined with the positioning slot 9, to make the welded pipe docking more precise, reduce the risk of welding misalignment, and improve welding efficiency. The circular pulling groove 46 on the top of the pulling plate 45 facilitates the operator's application of force, making it easier to adjust the position of the welded pipe and improving operational convenience. The outer walls of welded pipe 1 and welded pipe 2 are coated with an electroplated zinc anti-rust coating to improve corrosion resistance, extend service life, and make them suitable for humid or outdoor environments.

[0036] Working principle: During welding, the operator inserts the beveled end of weld pipe 2 (No. 2) into the positioning slot 9 of weld pipe 1 (No. 1). Due to the presence of the clearance groove 3, the pull plate 45 moves more smoothly. The compression spring 44 in the pull assembly pushes the pull block 43 to slide along the slide column 42, driving the rotating shaft 47 and the positioning frame 48 to rotate. The positioning frame 48 pulls weld pipe 2 (No. 2). Because the bottom of weld pipe 2 (No. 2) is inserted into the positioning slot 9, it is pulled and fixed to the top of weld pipe 1 by the positioning frame 48, keeping the welding surface stable. The reinforcing frame 7 enhances the overall structural strength and prevents welding deformation, while the weight-reducing groove 8 reduces weight. After welding, the electroplated zinc coating provides rust protection, ensuring the long-term use of the weld pipe.

[0037] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A special-shaped welded pipe, comprising a first welded pipe (1), characterized in that: A second welded pipe (2) is provided on one side of the top of the first welded pipe (1). A clearance groove (3) is provided on the top of the first welded pipe (1) and on the side close to the second welded pipe (2). A stabilizing mechanism is provided inside the first welded pipe (1). The stabilizing mechanism includes a pulling component and a reinforcing component, which are used in cooperation with each other. The pulling assembly includes a fixed plate (41), which is symmetrically fixedly connected inside the first welded pipe (1). A sliding column (42) is fixedly connected between the two fixed plates (41). A pulling block (43) is slidably connected to the outside of the sliding column (42). A compression spring (44) is sleeved on the outside of the sliding column (42). A rotating shaft (47) is symmetrically rotatably connected to the outside of the pulling block (43). A positioning frame (48) is rotatably connected to the outside of the two rotating shafts (47). A pulling plate (45) is fixedly connected to the top of the pulling block (43).

2. The irregularly shaped welded pipe according to claim 1, characterized in that: The reinforcing component includes a reinforcing frame (7), which is fixedly connected at equal intervals inside the first welded pipe (1) and the second welded pipe (2). The reinforcing frame (7) is X-shaped, and a weight-reducing groove (8) is provided inside the reinforcing frame (7) to reduce the overall weight of the welded pipe.

3. The irregularly shaped welded pipe according to claim 1, characterized in that: The inner wall of the No. 1 welded pipe (1) is provided with sliding grooves (5) on both sides, and sliding rods (6) are fixedly connected inside the two sliding grooves (5). The pulling block (43) and the sliding rods (6) are slidably connected.

4. The irregularly shaped welded pipe according to claim 1, characterized in that: The ends of the first welded pipe (1) and the second welded pipe (2) that are in contact with each other are both set with bevels, and both bevels are 45°. The end of the first welded pipe (1) near the second welded pipe (2) is provided with a positioning slot (9), and the positioning slot (9) and the second welded pipe (2) are used in conjunction with each other.

5. The irregularly shaped welded pipe according to claim 1, characterized in that: The top of the pull plate (45) is provided with a circular pull groove (46).

6. The irregularly shaped welded pipe according to claim 1, characterized in that: The outer walls of both the No. 1 welded pipe (1) and the No. 2 welded pipe (2) are provided with an anti-rust coating, which uses electroplated zinc as the main material.