Pipe bracket type support welding anti-deformation device

Abstract

The pipe bracket type support welding anti-deformation device is used for fixing pipes and comprises a channel steel framework and locking mechanisms arranged on the channel steel framework, the multiple locking mechanisms are arranged on the channel steel framework at intervals, and the locking mechanisms can fix the pipes to the channel steel framework; the locking mechanism comprises a first fixing unit, a second fixing unit and a chain, and the first fixing unit is arranged on one side of the channel steel framework; the second fixing unit is arranged on the other side of the channel steel framework; the chain is connected with the first fixing unit and the second fixing unit, the chain is fixedly connected with the first fixing unit and extends out of the first fixing unit, and the chain is connected with the second fixing unit in a sliding mode so as to adjust the extending length of the chain. The pipe is rigidly fixed to the high-strength steel channel framework through the locking mechanisms distributed at multiple points, a stable constraint system is formed, thermal expansion and cold contraction stress caused by local heating is resisted in the welding process, and deformation of a mother pipe and a support after welding is remarkably reduced.

Description

Technical Field

[0001] This invention belongs to the field of pipe processing, and in particular relates to a welding anti-deformation device for pipe support brackets. Background Technology

[0002] In the assembly phase of process pipelines for projects such as offshore platforms, ships, and LNG pipeline corridors, a large number of pipe-supported and punch-type pipe supports need to be installed and welded. These pipe supports must be directly welded to the main pipe. Due to the thermal expansion and contraction effects during welding and the unidirectional force generated at specific welding positions, significant post-weld deformation occurs. Since the deformation originates from the base material, adjustment methods are limited, affecting the overall pipeline installation efficiency and construction quality. A common method for dealing with the deformation of numerous pipe-supported supports during pipeline assembly is to reduce the welding speed—welding a certain distance, stopping, and waiting for the temperature to drop before resuming welding. While this method reduces the amount of post-weld deformation, it also reduces welding efficiency. Therefore, there is an urgent need for an anti-deformation fixture that can effectively prevent deformation of these supports after welding. This fixture should be compact, durable, and adaptable to complex on-site construction environments, accommodating different pipe diameters and materials.

[0003] Therefore, there is an urgent need to design a welding deformation prevention device for pipe support brackets to solve the problems mentioned above. Summary of the Invention

[0004] To address the technical problems mentioned in the background art, such as the thermal expansion and contraction effect during the welding process and the unidirectional force generated at special welding positions, which leads to significant post-weld deformation, a pipe support type welding anti-deformation device is provided.

[0005] To achieve the above objectives, the specific technical solution of the pipe support type bracket welding anti-deformation device of the present invention is as follows: A pipe support type welding anti-deformation device for fixing pipes includes a channel steel frame and locking mechanisms disposed on the channel steel frame. Multiple locking mechanisms are provided and spaced apart on the channel steel frame. The locking mechanisms can fix the pipes to the channel steel frame. The locking mechanisms include: The first fixing unit is located on one side of the channel steel frame; The second fixing unit is located on the other side of the channel steel frame; The chain is connected to the first fixed unit and the second fixed unit respectively. The chain is fixedly connected to the first fixed unit and extends out of the first fixed unit. The chain is slidably connected to the second fixed unit to adjust the extension length of the chain.

[0006] Furthermore, the first fixing unit includes a first fixing seat and a fixing component. The first fixing seat is disposed on one side of the channel steel frame and the fixing component is located on the first fixing seat. The fixing component is used to fix and connect with the chain.

[0007] Furthermore, the fixing component includes a positioning pin and a positioning bolt passing through the positioning pin. The positioning pin is engaged with the first fixing seat, and the positioning bolt is used for fixed connection with the chain.

[0008] Furthermore, the fixing component also includes a handle, which is threadedly connected to a positioning bolt, and the extension length of the chain is adjusted by rotating the handle and the positioning bolt.

[0009] Furthermore, the second fixing unit includes: The second fixing seat is located on the other side of the channel steel frame; The sprocket is mounted on the second fixed base, and the chain can overlap the sprocket so that the chain and the sprocket are relatively fixed, and the chain can slide relative to the sprocket to adjust the extension length of the chain.

[0010] Furthermore, the second fixing unit also includes a shaft pin and a stop pin. The second fixing seat is provided with a sliding groove. The shaft pin passes through the sprocket and is installed in the sliding groove. The shaft pin can slide along the radial direction of the sliding groove so that the stop pin locks or unlocks the sprocket.

[0011] Furthermore, the anti-deformation device for the pipe support bracket also includes reinforcing ribs, which are welded to the channel steel frame to improve the strength of the channel steel frame.

[0012] Furthermore, the anti-deformation device for pipe support welding also includes a positioning plate and a Teflon plate stacked together. The positioning plate and the Teflon plate are fixed together by bolts. The positioning plate abuts against the pipe, and the Teflon plate abuts against the channel steel frame.

[0013] Furthermore, the anti-deformation device for pipe support welding also includes a rubber pad, which is placed between the chain and the pipe to isolate the chain and the pipe.

[0014] Furthermore, the pipe support type welding anti-deformation device also includes a support, which is set at the bottom of the pipe to support the pipe, and the pipe is located between the support and the channel steel frame.

[0015] The pipe support welding anti-deformation device of the present invention has the following advantages: It rigidly fixes the pipe to a high-strength channel steel frame through a multi-point distributed locking mechanism, forming a stable constraint system that resists thermal expansion and contraction stress caused by local heating during welding, significantly reducing post-weld deformation of the mother pipe and the support. The structure design using a chain to connect the two fixing units allows for manual tightening of the chain to apply pre-tension, making operation simple and quick, suitable for frequent on-site disassembly and assembly needs. The chain and the second fixing unit are slidably connected, allowing for adjustment of the chain extension length to accommodate pipes of different diameters without changing tooling, thus improving equipment reusability. Multiple locking mechanisms are spaced apart along the channel steel frame, forming multi-point uniform force clamping, avoiding single-point stress concentration, and improving overall clamping stability and torsional resistance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the anti-deformation welding device for the tube support bracket of the present invention; Figure 2 This is a side view of the anti-deformation welding device for the pipe support bracket of the present invention; Figure 3 This is a structural schematic diagram of the anti-deformation welding device for the tube support bracket of the present invention from another perspective; Figure 4 This is a schematic diagram of the structure of the second fixing unit of the present invention.

[0017] Explanation of markings in the diagram: 1. Channel steel frame; 2. Locking mechanism; 21. First fixing unit; 211. First fixing seat; 212. Fixing component; 2121. Positioning pin; 2122. Positioning bolt; 2123. Handle; 22. Second fixing unit; 221. Second fixing seat; 222. Sprocket; 223. Shaft pin; 224. Stop pin; 23. Chain; 3. Reinforcing rib; 41. Positioning plate; 42. Teflon plate; 5. Rubber pad; 6. Support; 100. Pipe. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0021] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0022] The following is a reference to the appendix. Figure 1 To be continued Figure 4 This invention describes a welding deformation prevention device for a tube support bracket.

[0023] This embodiment provides a welding anti-deformation device for a pipe support bracket, used to fix the pipe 100. Figure 1 This is a schematic diagram of the anti-deformation device for pipe support bracket welding; as shown. Figure 1As shown, the pipe support type welding anti-deformation device includes a channel steel frame 1 and a locking mechanism disposed on the channel steel frame 1. Multiple locking mechanisms 2 are disposed at intervals on the channel steel frame 1. The locking mechanism 2 can fix the pipe 100 to the channel steel frame 1. The locking mechanism 2 includes a first fixing unit 21, a second fixing unit 22 and a chain 23. The first fixing unit 21 is disposed on one side of the channel steel frame 1; the second fixing unit 22 is disposed on the other side of the channel steel frame 1; the chain 23 is connected to the first fixing unit 21 and the second fixing unit 22 respectively, and the chain 23 is fixedly connected to the first fixing unit 21 and extends out of the first fixing unit 21. The chain 23 is slidably connected to the second fixing unit 22 to adjust the extension length of the chain 23.

[0024] Understandably, the multi-point distributed locking mechanism rigidly fixes the pipe 100 to the high-strength channel steel frame 1, forming a stable constraint system. This system resists thermal expansion and contraction stress caused by localized heating during welding, significantly reducing post-weld deformation of the main pipe and support. The structural design using a chain 23 to connect the two fixing units allows for manual tightening of the chain 23 to apply preload, making operation simple and quick, suitable for frequent on-site disassembly and assembly needs. The chain 23 and the second fixing unit 22 are slidably connected, allowing for adjustment of the chain 23 extension length to accommodate pipes 100 of different diameters without changing tooling, thus improving equipment reusability. Multiple locking mechanisms 2 are spaced apart along the channel steel frame 1, forming multi-point uniform force clamping, avoiding single-point stress concentration, and improving overall clamping stability and torsional resistance.

[0025] Furthermore, Figure 2 This is a side view of the anti-deformation device for welded pipe support brackets. Figure 3 This is a structural schematic diagram of the anti-deformation device for pipe support welding from another perspective; such as... Figures 1-3 As shown, the first fixing unit 21 includes a first fixing seat 211 and a fixing component 212. The first fixing seat 211 is disposed on one side of the channel steel frame 1 and the fixing component 212 is located on the first fixing seat 211. The fixing component 212 is used to fix and connect with the chain 23.

[0026] Understandably, dividing the first fixing unit 21 into a modular structure of "first fixing seat 211" and "fixing component 212" facilitates standardized production and maintenance replacement. The fixing component 212 is specifically responsible for connecting to the chain 23, making the connection function independent, ensuring that the end of the chain 23 is firmly anchored, preventing loosening or slippage, and ensuring safety during the clamping process. When the chain 23 or connecting parts wear out, only the fixing component 212 needs to be replaced without affecting the entire fixing seat structure, reducing maintenance costs.

[0027] Furthermore, such as Figures 1-3As shown, the fixing component 212 includes a positioning pin 2121 and a positioning bolt 2122 passing through the positioning pin 2121. The positioning pin 2121 is engaged with the first fixing seat 211, and the positioning bolt 2122 is used to fix and connect with the chain 23.

[0028] Understandably, the positioning pin 2121 stably mounts the fixing component 212 onto the first fixing seat 211, preventing lateral displacement; the positioning bolt 2122 passes directly through the chain link hole of the chain 23, achieving a mechanical rigid connection that is secure and not easily detached. This structure allows for chain 23 fixing without welding or complex tools, making it suitable for rapid on-site operations. In welding vibration environments, the dual fixing method of bolts and pins effectively prevents loosening and ensures long-term clamping stability.

[0029] Furthermore, such as Figures 1-3 As shown, the fixing component 212 also includes a handle 2123, which is threadedly connected to the positioning bolt 2122. The extension length of the chain 23 can be adjusted by rotating the handle 2123 and the positioning bolt 2122.

[0030] Understandably, by rotating the handle 2123 to drive the positioning bolt 2122, the tension of the chain 23 can be finely adjusted to achieve the ideal pre-tension state, avoiding damage to the pipe 100 due to excessive tightness or failure of clamping due to excessive looseness. The dedicated handle 2123 facilitates manual operation by workers, especially in high-altitude or confined spaces, allowing for easy adjustment and significantly improving operational convenience. The fine-tuning mechanism ensures controllable clamping force, helping to adapt to pipes 100 with different wall thicknesses and materials (such as stainless steel and carbon steel), preventing damage or slippage.

[0031] Furthermore, Figure 4 This is a structural diagram of the second fixed unit, as shown below. Figure 1 , Figure 3 and Figure 4 As shown, the second fixing unit 22 includes a second fixing seat 221 and a sprocket 222. The second fixing seat 221 is located on the other side of the channel steel frame 1. The sprocket 222 is mounted on the second fixing seat 221, and the chain 23 can overlap the sprocket 222 so that the chain 23 and the sprocket 222 are relatively fixed. The chain 23 can slide relative to the sprocket 222 to adjust the extension length of the chain 23.

[0032] Understandably, sprocket 222 acts as a guide wheel, causing the chain 23 to roll rather than slide on its surface, significantly reducing friction when pulling the chain 23 and making operation easier. Sprocket 222 guides the chain 23, preventing it from deviating, twisting, or jamming, ensuring continuous and reliable clamping action. Rolling contact reduces wear on the chain 23, especially in repetitive use scenarios, significantly improving its durability. The chain 23 length can be finely adjusted in real time during clamping to accommodate different pipe diameters or assembly errors.

[0033] Furthermore, such as Figure 2 and Figure 4 As shown, the second fixing unit 22 also includes a shaft pin 223 and a stop pin 224. The second fixing seat 221 is provided with a sliding groove. The shaft pin 223 passes through the sprocket 222 and is installed in the sliding groove. The shaft pin 223 can slide along the radial direction of the sliding groove so that the stop pin 224 locks or unlocks the sprocket 222.

[0034] Understandably, once chain 23 is tensioned, it pushes pin 223 along the sliding groove to its limit position and locks it with stop pin 224, preventing sprocket 222 from rotating in the opposite direction. This provides a ratchet-like self-locking effect, preventing chain 23 from springing back. Even in harsh construction environments such as vibration and impact, it ensures that chain 23 will not slack off unexpectedly, guaranteeing a durable and effective clamping state. Unlocking is as simple as pulling out stop pin 224 for readjustment, meeting the needs of multiple clamping operations while balancing safety and efficiency. Utilizing a mechanical limit principle for locking eliminates the need for additional hydraulic or electric devices, meeting the design goals of lightweight and durable field tooling.

[0035] Furthermore, such as Figures 1-3 As shown, the anti-deformation device for the pipe support bracket also includes reinforcing ribs 3, which are welded to the channel steel frame 1 to improve the strength of the channel steel frame 1.

[0036] Understandably, the reinforcing ribs 3 reinforce weak areas of the channel steel frame 1 (such as mid-span and joints) to prevent bending or twisting deformation under clamping force or welding stress. This ensures the fixture maintains geometric accuracy during long-term use, avoiding clamping deviations due to fixture deformation and affecting welding quality. It also enhances fatigue resistance, adapting to high-strength, repetitive engineering environments such as offshore platforms and ships. The reinforced frame can support larger diameter or heavier pipes 100, expanding its application range.

[0037] Furthermore, such as Figures 1-3 As shown, the pipe support type welding anti-deformation device also includes a positioning plate 41 and a Teflon plate 42 stacked together. The positioning plate 41 and the Teflon plate 42 are fixed together by bolts. The positioning plate 41 abuts against the pipe 100, and the Teflon plate 42 abuts against the channel steel frame 1.

[0038] Understandably, the positioning plate 41 directly contacts the pipe 100, providing a stable support surface and ensuring the pipe 100 is centered. The Teflon plate 42 is located below, serving as an isolation and friction-reducing agent. Teflon material is insulating and chemically inert, preventing direct contact between metals and avoiding galvanic corrosion between the carbon steel frame and the stainless steel pipe 100, making it particularly suitable for dissimilar metal piping systems. Teflon has extremely low surface energy, making it less prone to adhesion to slag or spatter even under high-temperature welding conditions, facilitating cleaning and maintenance. The flexible composite layer can absorb clamping stress to a certain extent, preventing indentations or damage to the surface of the pipe 100 caused by hard contact.

[0039] Furthermore, such as Figures 1-3 As shown, the anti-deformation device for pipe support welding also includes a rubber pad 5, which is placed between the chain 23 and the pipe 100 to isolate the chain 23 and the pipe 100.

[0040] Understandably, the rubber pad 5 serves as a soft transition layer to prevent the high-strength metal chain 23 from directly pressing against the outer wall of the pipe 100, avoiding scratches, indentations, or coating damage. This is particularly suitable for pipes 100 with anti-corrosion coatings or high-gloss requirements (such as LNG pipelines). The high friction between the rubber material and the pipe 100 surface enhances clamping stability and prevents axial or circumferential slippage of the pipe 100 during welding. During welding vibrations or handling, the rubber pad 5 can absorb some impact energy, reducing noise and structural fatigue. It also possesses a certain degree of elastic deformation, allowing it to conform to slightly elliptical or uneven pipe 100 surfaces, improving clamping adaptability.

[0041] Furthermore, such as Figures 1-3 As shown, the pipe support type welding anti-deformation device also includes a support 6, which is set at the bottom of the pipe 100 to support the pipe 100. The pipe 100 is located between the support 6 and the channel steel frame 1.

[0042] Understandably, for long-span pipes 100, support 6 bears part of its own weight to prevent the middle section from sagging due to gravity, which would affect the welding accuracy. Combined with the clamping of the upper chain 23, it forms a "C-clamp"-like fully enclosed constraint pattern, greatly improving overall stability and effectively resisting various complex stresses (bending moment, shear force, torque) during the welding process. The clamping force is distributed from the top chain 23 to the bottom support 6, preventing local instability or crushing of the pipe 100 due to force in one direction. When the height or angle of support 6 is adjustable, it can also be used for auxiliary fixing of inclined or vertical pipes, enhancing the versatility of the device.

[0043] The following is a brief description of the usage of the anti-deformation welding device for the tube support bracket in this embodiment: When welding the pipe support, place the channel steel frame 4 directly above the pipe 100. Secure the Teflon plate 42 with bolts below the positioning plate 41. Ensure the Teflon plate 42 is in contact with the pipe 100 to prevent contamination. Then install the chain 23. One end of the chain 23 is connected to the positioning bolt 2122, which is threaded onto the positioning pin 2121. The positioning pin 2121 is welded to the side of the channel steel frame 4. Turning the handle 2123 tightens the positioning bolt 2122. The other end of the chain 23 is connected to the second fixed seat 221. The second fixed seat 221 consists of a sprocket 222, a shaft pin 223, and a stop pin 224. When it is necessary to loosen chain 23, simply pull chain 23 upwards to disengage sprocket 222 from stop pin 224; when it is necessary to tighten chain 23 and fix it, simply pull chain 23 downwards to lock sprocket 222 into stop pin 224, thus keeping chain 23 fixed. When tightening chain 23, it firmly binds pipe 100, generating a downward force that counteracts the thermal expansion and contraction during welding and the unidirectional force generated at special welding positions, preventing welding deformation at the pipe support welding point.

[0044] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A pipe support type bracket welding anti-deformation device, used to fix pipes, characterized in that, The system includes a channel steel frame and a locking mechanism mounted on the channel steel frame. Multiple locking mechanisms are provided and spaced apart on the channel steel frame. These locking mechanisms secure the pipe to the channel steel frame. The locking mechanisms include: The first fixing unit is located on one side of the channel steel frame; The second fixing unit is located on the other side of the channel steel frame; The chain is connected to the first fixed unit and the second fixed unit respectively. The chain is fixedly connected to the first fixed unit and extends out of the first fixed unit. The chain is slidably connected to the second fixed unit to adjust the extension length of the chain.

2. The anti-deformation device for pipe support type welding according to claim 1, characterized in that, The first fixing unit includes a first fixing seat and a fixing component. The first fixing seat is disposed on one side of the channel steel frame and the fixing component is located on the first fixing seat. The fixing component is used to fix and connect with the chain.

3. The anti-deformation device for pipe support bracket welding according to claim 2, characterized in that, The fixing component includes a positioning pin and a positioning bolt that passes through the positioning pin. The positioning pin is engaged with the first fixing seat, and the positioning bolt is used to fix the chain.

4. The anti-deformation device for pipe support type welding according to claim 3, characterized in that, The fixing component also includes a handle, which is threadedly connected to a positioning bolt. The extension length of the chain is adjusted by rotating the handle and the positioning bolt.

5. The anti-deformation device for pipe support type welding according to claim 1, characterized in that, The second fixed unit includes: The second fixing seat is located on the other side of the channel steel frame; The sprocket is mounted on the second fixed base, and the chain can overlap the sprocket so that the chain and the sprocket are relatively fixed, and the chain can slide relative to the sprocket to adjust the extension length of the chain.

6. The anti-deformation device for pipe support welding according to claim 5, characterized in that, The second fixing unit also includes a shaft pin and a stop pin. The second fixing seat is provided with a sliding groove. The shaft pin passes through the sprocket and is installed in the sliding groove. The shaft pin can slide along the radial direction of the sliding groove so that the stop pin locks or unlocks the sprocket.

7. The anti-deformation device for pipe support type welding according to claim 1, characterized in that, The anti-deformation device for pipe-support type brackets also includes reinforcing ribs, which are welded to the channel steel frame to improve the strength of the channel steel frame.

8. The anti-deformation device for pipe support type welding according to claim 1, characterized in that, The anti-deformation device for pipe support welding also includes a positioning plate and a Teflon plate stacked together. The positioning plate and the Teflon plate are fixed by bolts. The positioning plate abuts against the pipe and the Teflon plate abuts against the channel steel frame.

9. The anti-deformation device for pipe support type welding according to claim 1, characterized in that, The anti-deformation device for pipe support welding also includes a rubber pad, which is placed between the chain and the pipe to isolate the chain and the pipe.

10. The anti-deformation device for pipe support type welding according to claim 1, characterized in that, The pipe support type welding anti-deformation device also includes a support, which is set at the bottom of the pipe to support the pipe, and the pipe is located between the support and the channel steel frame.

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