Metal pipe assembly aid

CN224464050UActive Publication Date: 2026-07-07GUANGZHOU LONGXUE PIPE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU LONGXUE PIPE CO LTD
Filing Date
2025-07-14
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The current flange and pipe butt welding process requires at least two people, resulting in high labor costs.

Method used

An auxiliary device for assembling metal pipes was designed, including components such as a fixed base, a lifting plate, a bidirectional screw, support rods, support rollers, and limiting grooves. By combining these components, the height of the pipe and the spacing between the support rods can be adjusted, reducing friction and improving the flexibility and stability of welding.

Benefits of technology

This device can be operated by a single person, adapts to pipes of different diameters and welding positions, improves welding quality and efficiency, and reduces labor costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of pipe welding, and discloses a metal pipeline assembly auxiliary device, which comprises a fixing base and two lifting plates, second bidirectional screws are rotationally connected in the two sliding grooves, first moving bases are threadedly connected to the outer walls of the two second bidirectional screws, second moving bases are slidingly connected to the outer walls of the two lifting plates, rotating bases provided in a mirror image are fixedly connected to the upper ends of the two lifting plates, supporting rollers are rotationally connected between the four rotating bases, and scissor frames are rotationally connected between every two groups of the four first moving bases and second moving bases. The metal pipeline assembly auxiliary device is connected with the first moving bases and the second moving bases through the scissor frames, the height of the lifting plate can be adjusted, the height of the pipe material can be adjusted according to the welding requirement of an operator, different-diameter pipe materials and welding positions can be easily coped with, and the flexibility and adaptability of welding operation are improved.
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Description

Technical Field

[0001] This application relates to the field of pipe welding technology, specifically to auxiliary devices for metal pipe assembly. Background Technology

[0002] Pipe assembly and welding are important processes in both marine piping systems and other industries. Due to the inherent rolling nature of pipes, they generally need to be fixed during assembly or welding to facilitate the operation.

[0003] However, the current method of butt welding flanges to pipes requires at least two people: one to hold the pipe and flange in place, and the other to perform the welding. This results in a significant investment of labor costs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides an auxiliary device for metal pipe assembly, which has advantages such as reducing labor costs. It solves the problem that when welding flanges to pipes, at least two people are required, one to hold the pipe and flange in place and the other to perform the welding, resulting in high labor costs.

[0005] To achieve the above objectives, this application provides the following technical solution: a metal pipe assembly auxiliary device, comprising a fixed base and two lifting plates. A first bidirectional screw is rotatably connected to one side of the fixed base. Moving blocks are threaded to both ends of the outer wall of the first bidirectional screw. Support rods are fixedly connected to the ends of the two moving blocks away from the fixed base. Sliding grooves are formed inside the two support rods. Second bidirectional screws are rotatably connected to both sliding grooves. First moving seats are threaded to both ends of the outer wall of the two second bidirectional screws. Guide rails are fixedly connected to the bottom ends of the two lifting plates. Second moving seats are slidably connected to both ends of the outer wall of the two lifting plates. Two rotating seats arranged in a mirror image are fixedly connected to the upper ends of the two lifting plates. Support rollers are rotatably connected between the four rotating seats. Scissor frames are rotatably connected between each pair of the four first and second moving seats.

[0006] The above scheme, by connecting the first and second movable seats with a scissor frame, achieves adjustable height of the lifting plate. This allows operators to adjust the height of the pipe according to welding requirements, easily handling pipes of different diameters and welding positions, thus improving the flexibility and adaptability of welding operations. The first bidirectional screw allows the gap between the two support rods to be adjusted according to the pipe diameter, improving the versatility of the device and ensuring the stability and support effect of the pipe during welding, further enhancing welding quality. The introduction of support rollers reduces friction on the pipe during welding, allowing the pipe to rotate smoothly and facilitating easy adjustment of the welding position by the operator, improving welding convenience and efficiency. This device has the advantages of high versatility and adaptability, capable of handling pipes of different diameters and welding positions.

[0007] Furthermore, a first support tube and a second support tube are fixedly connected to the upper end of the fixed base. The upper ends of the first support tube and the second support tube each have two limiting grooves arranged in a mirror image. Rotating wheels are rotatably connected inside the four limiting grooves.

[0008] Through the above scheme, the first support pipe and the second support pipe provide two different support positions to adapt to flanges of different diameters. The setting of the limiting groove prevents the flange from shaking or shifting during the welding process, ensuring the accuracy and stability of the welding. The rotating wheel can reduce the friction between the flange and the support structure, allowing the pipe to be easily rotated to adjust the welding position.

[0009] Furthermore, the fixed base has two first threaded holes and second threaded holes arranged in a mirror image. The two first threaded holes are threaded with first adjusting bolts, and the two second threaded holes are threaded with second adjusting bolts.

[0010] With the above scheme, the first adjusting bolt and the second adjusting bolt act independently through the first threaded hole and the second threaded hole, respectively. This allows for the adjustment of the support force on both sides for flanges of different diameters, avoiding tilting or shaking caused by excessive force on one side.

[0011] Furthermore, a turntable is fixedly connected to the upper end of each of the two first adjusting bolts and the second adjusting bolt, and a support wheel is rotatably connected to the upper end of each of the four turntables.

[0012] The above scheme allows the turntable to rotate, enabling the support wheels to rotate.

[0013] Furthermore, each of the two second bidirectional screws has a first throttle fixedly connected to one end of the support rod.

[0014] The above solution allows the operator to easily rotate the second bidirectional screw, thereby facilitating the adjustment of the scissor holder height.

[0015] Furthermore, a second throttle is fixedly connected to one side of the first bidirectional screw that passes through the fixed base.

[0016] The above solution, with the second throttle, allows the operator to easily rotate the first bidirectional screw, thereby facilitating the adjustment of the distance between the two support rods.

[0017] Furthermore, the height of the second support tube is higher than that of the first support tube.

[0018] With the above scheme, the second support pipe is higher than the first support pipe, which can support flanges of different diameters. The first support pipe is lower in height and is used to support flanges with smaller diameters, while the second support pipe is higher in height and is used to support flanges with larger diameters.

[0019] Furthermore, all the support rollers are made of rubber.

[0020] The above method can increase the friction between the rubber support roller and the pipe.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This metal pipe assembly auxiliary device connects the first and second movable seats via a scissor bracket, enabling adjustable height of the lifting plate. This allows operators to adjust the pipe height according to welding requirements, easily handling pipes of different diameters and welding positions, thus improving the flexibility and adaptability of welding operations. The first bidirectional screw allows the gap between the two support rods to be adjusted according to the pipe diameter, enhancing the device's versatility and ensuring the stability and support effect of the pipe during welding, further improving welding quality. The introduction of support rollers reduces friction on the pipe during welding, allowing for smooth pipe rotation and facilitating easy adjustment of the welding position by the operator, improving welding convenience and efficiency. This device boasts high versatility and adaptability, capable of handling pipes of different diameters and welding positions. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this application;

[0024] Figure 2 This is a schematic diagram of the support device adjustment structure of the structure in this application;

[0025] Figure 3 This is a schematic diagram of the pipe support structure of the present application.

[0026] Figure 4 This is a schematic diagram of the support device installation structure for the structure of this application;

[0027] Figure 5 This is a schematic diagram of the support roller structure of the present application.

[0028] In the picture:

[0029] 1. Fixed base; 2. First bidirectional screw; 3. Moving block; 4. Support rod; 5. Slide groove; 6. Second bidirectional screw; 7. First moving base; 8. Lifting plate; 9. Guide rail; 10. Second moving base; 11. Rotating base; 12. Support roller; 13. Scissor frame; 14. First rotary handle; 15. First support tube; 16. Second support tube; 17. Limiting groove; 18. Rotating wheel; 19. First threaded hole; 20. Second threaded hole; 21. First adjusting bolt; 22. Second adjusting bolt; 23. Turntable; 24. Support wheel; 25. Second rotary handle. Detailed Implementation

[0030] 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. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 1 , Figure 2 and Figure 3The metal pipe assembly auxiliary device in this embodiment includes a fixed base 1 and two lifting plates 8. A first bidirectional screw 2 is rotatably connected to one side of the fixed base 1. Both ends of the outer wall of the first bidirectional screw 2 are threaded with moving blocks 3. The ends of the two moving blocks 3 away from the fixed base 1 are fixedly connected with support rods 4. The arrangement of the first bidirectional screw 2 allows the gap between the two support rods 4 to be adjusted according to the pipe diameter, improving the versatility of the device. Each of the two support rods 4 has a sliding groove 5 inside, and each of the two sliding grooves 5 is rotatably connected with a second bidirectional screw 6. The second bidirectional screw 6 is used to adjust the height of the pipe. Both ends of the outer wall of the two second bidirectional screws 6 are threaded with first moving seats 7. The bottom ends of the two lifting plates 8 are fixedly connected with guide rails 9. Both ends of the outer wall of the two lifting plates 8 are threaded with first moving seats 7. The system is connected to a second movable seat 10. Two rotating seats 11, arranged in a mirror image, are fixedly connected to the upper ends of both lifting plates 8. Support rollers 12 are rotatably connected between the four rotating seats 11. The introduction of the support rollers 12 reduces the friction of the pipe during welding, allowing the pipe to rotate smoothly. This facilitates easy adjustment of the welding position by the operator, improving the convenience and efficiency of welding. Scissor frames 13 are rotatably connected between each pair of the four first movable seats 7 and the second movable seats 10. The scissor frames 13 connect the first movable seats 7 and the second movable seats 10, enabling the height of the lifting plates 8 to be adjustable. This allows the operator to adjust the height of the pipe according to welding requirements, easily handling pipes of different diameters and welding positions, thus improving the flexibility and adaptability of welding operations.

[0032] Please see Figure 2 , Figure 3 and Figure 4The upper end of the fixed base 1 is fixedly connected to a first support pipe 15 and a second support pipe 16. Each of the first and second support pipes 15 and 16 has two mirror-shaped limiting grooves 17 at its upper end. Each of the four limiting grooves 17 has a rotating wheel 18 rotatably connected inside. The first and second support pipes 15 and 16 provide two different support positions to accommodate flanges of different diameters. The limiting grooves 17 prevent the flange from shaking or shifting during welding, ensuring welding accuracy and stability. The rotating wheels 18 reduce friction between the flange and the support structure, allowing the pipe to easily rotate and adjust the welding position. The fixed base 1 has two mirror-shaped limiting grooves 17 inside. The first threaded hole 19 and the second threaded hole 20 are threaded together. The first threaded hole 19 is internally connected to the first adjusting bolt 21. The two second threaded holes 20 are internally connected to the second adjusting bolt 22. The first adjusting bolt 21 and the second adjusting bolt 22 act independently through the first threaded hole 19 and the second threaded hole 20, respectively. They can adjust the support force on both sides for flanges of different diameters, so as to avoid tilting or shaking caused by excessive force on one side. The upper ends of the two first adjusting bolts 21 and the second adjusting bolt 22 are fixedly connected to the turntables 23. The upper ends of the four turntables 23 are rotatably connected to the support wheels 24. The turntables 23 are set so that the support wheels 24 can rotate.

[0033] Please see Figure 2 , Figure 3 and Figure 5 Two second bidirectional screws 6 are fixedly connected to one end of the support rod 4 with a first handle 14. The first handle 14 allows the operator to easily rotate the second bidirectional screws 6, thereby easily adjusting the height of the scissor frame 13. A first bidirectional screw 2 is fixedly connected to one side of the fixed base 1 with a second handle 25. The second handle 25 allows the operator to easily rotate the first bidirectional screw 2, thereby easily adjusting the distance between the two support rods 4. The height of the second support tube 16 is higher than that of the first support tube 15. The second support tube 16 is higher than that of the first support tube 15 and can support flanges of different diameters. The first support tube 15 is lower and is used to support flanges with smaller diameters. The second support tube 16 is higher and is used to support flanges with larger diameters. The support rollers 12 are all made of rubber. The rubber material of the support rollers 12 can increase the friction between the support rollers and the pipes.

[0034] In this embodiment, the metal pipe assembly auxiliary device connects the first movable seat 7 and the second movable seat 10 via the scissor bracket 13, enabling the height of the lifting plate 8 to be adjustable. This allows operators to adjust the height of the pipe according to welding requirements, easily handling pipes of different diameters and welding positions, thus improving the flexibility and adaptability of welding operations. The first bidirectional screw 2 allows the gap between the two support rods 4 to be adjusted according to the pipe diameter, improving the device's versatility and ensuring the stability and support effect of the pipe during welding, further enhancing welding quality. The introduction of the support roller 12 reduces the friction of the pipe during welding, allowing the pipe to rotate smoothly and facilitating easy adjustment of the welding position by the operator, improving the convenience and efficiency of welding. This device has the advantages of high versatility and adaptability, and can handle pipes of different diameters and welding positions.

[0035] It should be noted that the first adjusting bolt 21, the second adjusting bolt 22, the turntable 23, and the support wheel 24 can also be used when welding pipes with extremely large diameters.

[0036] The working principle of the above embodiments is as follows:

[0037] First, turn the second handle 25 to drive the first bidirectional screw 2 to rotate, causing the two moving blocks 3 to move synchronously along the screw. Adjust the distance between the two support rods 4 to adapt to the pipe diameter. The rubber support roller 12 is connected to the lifting plate 8 through the rotating seat 11. The rubber material increases the friction with the pipe, ensuring that the pipe is stable and does not slip when rotating. Turn the first handle 14 to drive the second bidirectional screw 6 to rotate, causing the two first moving seats 7 to move along the slide groove 5. The second moving seat 10 moves along the guide rail 9 through the scissor bracket 13, causing the lifting plate 8 to rise or fall, thereby adjusting the pipe height. Small-diameter flanges have a low horizontal height, so the welded part between the pipe and the flange is relatively low. The first support pipe 15 is used for support. Large-diameter flanges are supported by the second support pipe 16. For ultra-large straight... When supporting flanges of different diameters, the flanges can be supported by two first adjusting bolts 21 or second adjusting bolts 22 working together. The flange is placed in the limiting groove 17 of the support pipe. The rotating wheel 18 reduces the friction between the flange and the support structure, making it easier to rotate and adjust the welding position. During welding, the pipe rotates on the rubber support roller 12. The rubber material reduces friction, allowing the pipe to rotate smoothly and making it easy for operators to adjust the welding position. The flange rotates synchronously on the rotating wheel 18 to ensure a uniform welding surface and improve welding quality. The first adjusting bolt 21 and the second adjusting bolt 22 act independently through the first threaded hole 19 and the second threaded hole 20, which can adjust the support force on both sides for flanges of different diameters, avoiding tilting or shaking caused by excessive force on one side. After welding, the welded pipe can be directly removed.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A metal pipe assembly auxiliary device, comprising a fixed base (1) and two lifting plates (8), characterized in that: The fixed seat (1) is rotatably connected to a first bidirectional screw (2) on one side. The first bidirectional screw (2) is threaded to both ends of its outer wall with moving blocks (3). The two moving blocks (3) are fixedly connected to a support rod (4) at the end away from the fixed seat (1). The two support rods (4) are provided with a sliding groove (5). The two sliding grooves (5) are rotatably connected to a second bidirectional screw (6). The two second bidirectional screws (6) are threaded to both ends of their outer walls with a first moving seat (7). The bottom ends of the two lifting plates (8) are fixedly connected to a guide rail (9). The two lifting plates (8) are slidably connected to both ends of their outer walls with a second moving seat (10). The upper ends of the two lifting plates (8) are fixedly connected to two rotating seats (11) arranged in a mirror distribution. The four rotating seats (11) are rotatably connected to a support roller (12). The four first moving seats (7) and the two moving seats (10) are rotatably connected to a scissor frame (13) in pairs.

2. The metal pipe assembly auxiliary device according to claim 1, characterized in that: The upper end of the fixed base (1) is fixedly connected to a first support tube (15) and a second support tube (16). The upper ends of the first support tube (15) and the second support tube (16) are each provided with two limiting grooves (17) arranged in a mirror distribution. The four limiting grooves (17) are each rotatably connected to a rotating wheel (18).

3. The metal pipe assembly auxiliary device according to claim 1, characterized in that: The fixed base (1) has two first threaded holes (19) and second threaded holes (20) arranged in a mirror image. The two first threaded holes (19) are threaded with a first adjusting bolt (21), and the two second threaded holes (20) are threaded with a second adjusting bolt (22).

4. The metal pipe assembly auxiliary device according to claim 3, characterized in that: The upper ends of the two first adjusting bolts (21) and the second adjusting bolts (22) are fixedly connected to turntables (23), and the upper ends of the four turntables (23) are rotatably connected to support wheels (24).

5. The metal pipe assembly auxiliary device according to claim 1, characterized in that: The two second bidirectional screws (6) are fixedly connected to the first throttle (14) at one end of the support rod (4).

6. The metal pipe assembly auxiliary device according to claim 1, characterized in that: The first bidirectional screw (2) is fixedly connected to a second throttle (25) through one side of the fixed base (1).

7. The metal pipe assembly auxiliary device according to claim 2, characterized in that: The height of the second support tube (16) is higher than that of the first support tube (15).

8. The metal pipe assembly auxiliary device according to claim 1, characterized in that: The support rollers (12) are all made of rubber.