A multi-angle fixing device for welding water conservancy pipelines

By using a multi-angle fixing device and a cleaning system, the problems of angle adjustment and slag removal in water conservancy pipeline welding have been solved, achieving stable welding and efficient cleaning, and improving welding quality and safety.

CN120791318BActive Publication Date: 2026-03-13SHANDONG YIXIN PLANNING & DESIGN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-08-29
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing water pipe welding equipment may cause the water pipe to rotate during angle adjustment, affecting the welding effect. Furthermore, the welding slag is difficult to clean, affecting welding quality and safety.

Method used

A multi-angle fixing device is adopted, including a sliding frame, a rotating device, a fixed frame, a rotating frame, and a support device. Through the design of springs and pulleys, it is ensured that the water pipe does not slip during multi-angle welding, and the welding slag is cleaned by brushes and collection tanks.

Benefits of technology

This technology improves the stability and welding quality of water pipes during multi-angle welding, effectively removes welding slag, and enhances welding efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a multi-angle fixing device for welding water conservancy pipelines, relating to the field of pipeline fixing technology. It includes: a processing table; a sliding frame slidably mounted on the top of the processing table and driven by a motor; a rotating device fixedly mounted on the surface of the sliding frame; a fixed frame fixedly mounted on the output end of the rotating device; and a rotating frame rotatably mounted on the inner wall of the fixed frame. The rotating device drives the fixed frame and the rotating frame to rotate. A slot is fixedly mounted on the top of the fixed frame, and a sliding plate is slidably mounted inside the rotating frame to limit the slot. A fixed column is fixedly mounted on the output end of the rotating device, and a circular plate is slidably mounted on the surface of the fixed column. By supporting the inner wall of the water pipe, the water pipe can rotate synchronously with the rotating device when it rotates, achieving multi-angle welding.
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Description

Technical Field

[0001] This invention relates to the field of pipeline fixing technology, specifically a multi-angle fixing device for welding water conservancy pipelines. Background Technology

[0002] Pipe welding is often used after pipes have been fixed in place. Its main function is to ensure that the pipes maintain the correct position and angle during welding in order to achieve high-quality welds.

[0003] Patent publication number CN213945501U relates to a multi-angle fixing device for welding water conservancy pipelines. The device includes a base, a support frame above the base, a universal joint above the support frame, and a fixing frame above the universal joint. The fixing frame includes a first fixing frame and a second fixing frame located below the first fixing frame. A rotating shaft is located on one side of the fixing frame, and a buckle is located on the other side. This multi-angle fixing device for welding water conservancy pipelines, through its base, support frame, universal joint, fixing frame, rotating shaft, and buckle, allows the pipes to be welded to be connected via the two fixing frames during use. Welding is then performed, and when an angle needs to be changed, the universal joint allows the pipe angle to be moved. This design changes the situation where the angle of existing pipe welding fixing devices cannot be changed, making it easier for users to weld pipes at different angles according to the situation, thus simplifying operation.

[0004] In the aforementioned patent, the angle of the pipe can be moved by the universal head. This design changes the situation where the angle of the existing pipe welding fixing device cannot be changed, making it easier for users to weld the pipe at different angles according to the situation. It is easy to operate, but during the welding process, the water pipes may be misaligned, which may affect the welding effect. When adjusting the angle by the universal head, the water pipe may rotate inside the fixing frame, which will affect the welding position. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a multi-angle fixing device for welding water conservancy pipelines, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-angle fixing device for welding water conservancy pipelines, comprising: a processing table; a sliding frame, the sliding frame being slidably mounted on the top of the processing table and driven by a motor; a rotating device, the rotating device being fixedly mounted on the surface of the sliding frame; a fixed frame, the fixed frame being fixedly mounted on the output end of the rotating device; and a rotating frame, the rotating frame being rotatably mounted on the inner wall of the fixed frame, the rotating device being used to drive the fixed frame and the rotating frame to rotate; a slot is fixedly installed on the top of the fixed frame, and a sliding plate is slidably mounted inside the rotating frame. The sliding plate is used to limit the position of the slot. A fixed column is fixedly installed at the output end of the rotating device. A circular plate is slidably installed on the surface of the fixed column. A fixed seat is fixedly installed at the output end of the rotating device. A rotating plate is rotatably installed on the inner wall of the fixed seat. A connecting seat is slidably installed on the surface of the circular plate. The end of the rotating plate away from the fixed seat is rotatably installed on the inner wall of the connecting seat. An arc-shaped plate is fixedly installed on the surface of the connecting seat. When the connecting seat moves away from the center of the circular plate, it will drive the arc-shaped plate to move away from the center of the circular plate. The movement of the arc-shaped plate away from the center of the circular plate will support the inner wall of the water pipe.

[0007] According to the above technical solution, a first spring is provided between the fixed column and the circular plate. When the circular plate is squeezed by the detached water pipe, the elastic force of the first spring will drive the circular plate to reset. A second spring is provided between the circular plate and the connecting seat. The elastic force of the second spring will drive the connecting seat to reset.

[0008] According to the above technical solution, the processing table is equipped with a support device and an anti-deviation device for supporting water pipes. The support device includes an L-shaped frame, rollers, trapezoidal blocks, and a pulley frame. The L-shaped frame moves closer to the center of the processing table by moving the sliding frame, which in turn moves the rollers closer to the center of the processing table. The L-shaped frame is fixedly installed at the bottom of the sliding frame, the rollers are rotatably installed on the inner wall of the L-shaped frame, the trapezoidal blocks are slidably installed on the inner wall of the processing table, and the pulley frame is fixed to the surface of the trapezoidal blocks.

[0009] According to the above technical solution, a fixing plate is fixedly installed on the surface of the pulley frame, a brush is fixedly installed on the top of the fixing plate, and a collection trough is slidably installed on the bottom of the processing table. The brush moves upward and contacts the water pipe. When the rotating equipment rotates, it will drive the water pipe to rotate. During the rotation of the water pipe, the welding slag remaining on the water pipe after welding is completed will be scraped off by the brush.

[0010] According to the above technical solution, a No. 3 spring is provided between the trapezoidal block and the processing table. When the sliding frame drives the L-shaped frame and the roller to reset, the elastic force of the No. 3 spring will drive the trapezoidal block to reset. The brush is located below the water pipe.

[0011] According to the above technical solution, the anti-deviation device includes a pulley seat, a rotating plate, and a rotating wheel. The pulley seat moves upward by the fixed plate, which in turn moves upward. The upward movement of the pulley seat will release the pressure on the rotating plate, causing the rotating plate to rotate upward. The upward rotation of the rotating plate will drive the rotating wheel to rotate upward. The pulley seat is fixedly installed on the surface of the fixed plate, the rotating plate is rotatably installed on the inner wall of the processing table, and the rotating wheel is rotatably installed on the surface of the rotating plate.

[0012] According to the above technical solution, a connecting plate is fixedly installed on the surface of the rotating plate, a trapezoidal slide rod is slidably installed on the inner wall of the processing table, a sealing baffle is fixedly installed on the inner wall of the collection tank, and a flipping plate is rotatably installed on the inner wall of the collection tank. When the rotating plate rotates upward, it will drive the connecting plate to rotate downward. When the connecting plate rotates downward, it will push the trapezoidal slide rod to slide downward. When the trapezoidal slide rod slides downward, it will push the flipping plate to rotate downward.

[0013] According to the above technical solution, a first torsion spring is provided between the rotating plate and the processing table, and the rotating plate is reset by the elastic force of the first torsion spring itself. A fourth spring is provided between the processing table and the trapezoidal slide rod, and the trapezoidal slide rod is reset by the elastic force of the fourth spring itself. A second torsion spring is provided between the rotating plate and the processing table.

[0014] This invention provides a multi-angle fixing device for welding hydraulic pipelines. It has the following beneficial effects:

[0015] (1) In this invention, the limiting of the slot is released by pushing the sliding plate away from the slot, then the rotating frame is opened and the water pipe to be welded is placed on the fixed frame. Then the rotating frame is closed and the water pipe is fixed between the fixed frame and the rotating frame. The rotating frame is locked by pushing the sliding plate towards the slot to prevent the water pipe from tilting downward and affecting the welding effect. The two water pipes are aligned by moving the sliding frame towards the center of the processing table, driving the fixed rotating device, the fixed frame and the rotating frame towards the center of the processing table.

[0016] (2) In this invention, the arc plate moves away from the center of the circular plate to support the inner wall of the water pipe, preventing the water pipe from sliding when the rotating equipment adjusts the angle, which would prevent the welding equipment from welding other parts of the water pipe and affect the welding efficiency. By supporting the inner wall of the water pipe, the water pipe can rotate synchronously with the rotating equipment when the rotating equipment rotates, thus achieving multi-angle welding.

[0017] (3) In this invention, the bottom of the water pipe is supported by the upward movement of the pulley frame to prevent one end of the water pipe from tilting downward, which would cause the weld joints of the two water pipes to be misaligned and affect the normal welding of the welding machine. At the same time, the upward movement of the pulley frame will drive the fixed plate to move upward, and the upward movement of the fixed plate will drive the brush to move upward. The brush will contact the water pipe at the alignment point when it moves upward. When the rotating equipment rotates, it will drive the water pipe to rotate. During the rotation of the water pipe, the welding slag remaining on the water pipe after welding will be scraped off by the brush, preventing the welding slag from forming an unevenness at the weld joint, which would affect the strength and sealing of the weld. Cleaning the welding slag can ensure that the weld surface is smooth, thereby improving the welding quality and enhancing the strength of the connection.

[0018] (4) In this invention, the rotating wheel rotates upward to contact the surface of the water pipe, preventing the water pipe from shifting position when the rotating equipment rotates, which would cause the water pipe interface to be misaligned and affect the welding machine's welding. At the same time, the rotating plate rotates downward to open the collection tank, allowing the welding slag scraped off by the brush to enter the collection tank. When the welding is finished, the rotating plate resets to seal the collection tank, effectively collecting the welding slag and preventing it from scattering into the working environment, thereby reducing the impact on workers' health and the working environment. When the welding is finished, the sealed collection tank can be directly removed for easy replacement, and the welding slag is not easily spilled, improving the collection effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the present invention;

[0021] Figure 3 This is a schematic cross-sectional view of the rotating frame structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the rotating device and fixed column structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the processing table of the present invention;

[0024] Figure 6 This is a schematic diagram of the processing table and collection tank structure of the present invention;

[0025] Figure 7 This is a schematic diagram of the cross-sectional structure of the collection tank of the present invention.

[0026] In the diagram: 1. Processing table; 2. Sliding frame; 3. Rotating device; 4. Fixed frame; 5. Rotating frame; 6. Slot; 7. Sliding plate; 8. Fixed column; 9. Circular plate; 10. Fixed seat; 11. Rotating plate; 12. Connecting seat; 13. Arc plate; 141. L-shaped frame; 142. Roller; 143. Trapezoidal block; 144. Pulley frame; 145. Fixed plate; 146. Brush; 147. Collection trough; 151. Pulley seat; 152. Rotating plate; 153. Rotating wheel; 154. Connecting plate; 155. Trapezoidal slide bar; 156. Sealing baffle; 157. Flipping plate. Detailed Implementation

[0027] 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, and 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.

[0028] Please see Figure 1 - Figure 4 One embodiment of the present invention is: a multi-angle fixing device for welding water conservancy pipelines, comprising: a processing table 1, a sliding frame 2, the sliding frame 2 being slidably mounted on the top of the processing table 1 and driven by a motor; a rotating device 3, the rotating device 3 being fixedly mounted on the surface of the sliding frame 2; a fixed frame 4, the fixed frame 4 being fixedly mounted on the output end of the rotating device 3; a rotating frame 5, the rotating frame 5 being rotatably mounted on the inner wall of the fixed frame 4, the rotating device 3 being used to drive the fixed frame 4 and the rotating frame 5 to rotate; a slot 6 being fixedly mounted on the top of the fixed frame 4, a sliding plate 7 being slidably mounted inside the rotating frame 5, the sliding plate 7 being used to limit the slot 6; and a fixed device 6 being fixedly mounted on the output end of the rotating device 3. A fixed column 8 has a circular plate 9 slidably mounted on its surface. A fixed seat 10 is fixedly mounted at the output end of the rotating device 3. A rotating plate 11 is rotatably mounted on the inner wall of the fixed seat 10. A connecting seat 12 is slidably mounted on the surface of the circular plate 9. The end of the rotating plate 11 away from the fixed seat 10 is rotatably mounted on the inner wall of the connecting seat 12. An arc-shaped plate 13 is fixedly mounted on the surface of the connecting seat 12 to prevent the water pipe from sliding when the rotating device 3 rotates to adjust the angle, which would prevent the welding equipment from welding other parts of the water pipe and affect the welding efficiency. By supporting the inner wall of the water pipe, the water pipe can rotate synchronously with the rotating device 3 when it rotates, thus achieving multi-angle welding.

[0029] A first spring is installed between the fixed column 8 and the circular plate 9. When the circular plate 9 is squeezed by the detached water pipe, the elastic force of the first spring will drive the circular plate 9 to reset. A second spring is installed between the circular plate 9 and the connecting seat 12. The elastic force of the second spring will drive the connecting seat 12 to reset.

[0030] In this embodiment, the following steps are taken: by pushing the sliding plate 7 away from the slot 6, the restriction on the slot 6 is released. Then, the rotating frame 5 is pushed open, and the water pipe to be welded is placed on the fixed frame 4. The rotating frame 5 is then closed to fix the water pipe between the fixed frame 4 and the rotating frame 5. The rotating frame 5 is then locked by pushing the sliding plate 7 towards the slot 6 to prevent the water pipe from tilting downwards and affecting the welding effect.

[0031] Subsequently, the welding angle can be adjusted by rotating the water pipe through the rotating device 3. The water pipe is then welded by the welding machine. After the water pipe is fixed, the motor is started. The motor will drive the sliding frame 2 to move closer to the center of the processing table 1. The movement of the sliding frame 2 to the center of the processing table 1 will drive the fixed rotating device 3, the fixed frame 4 and the rotating frame 5 to move closer to the center of the processing table 1 to align the two water pipes. After the two water pipes are aligned, the opposing forces will push the circular plate 9 to move closer to the rotating device 3. The movement of the circular plate 9 to the center of the rotating device 3 will drive the connecting seat 12 to move closer to the rotating device 3. The movement of the connecting seat 12 to the center of the rotating device 3 will squeeze the rotating plate 11 to rotate. The rotation of the rotating plate 11 will push the connecting seat 12 to move away from the center of the circular plate 9.

[0032] The movement of the connecting seat 12 away from the center of the circular plate 9 will cause the arc plate 13 to move away from the center of the circular plate 9. The movement of the arc plate 13 away from the center of the circular plate 9 will support the inner wall of the water pipe, preventing the water pipe from sliding when the rotating device 3 rotates to adjust the angle. This would prevent the welding equipment from welding other parts of the water pipe, thus affecting the welding efficiency. By supporting the inner wall of the water pipe, the water pipe can rotate synchronously with the rotating device 3 when it rotates, thus achieving multi-angle welding.

[0033] Please see Figure 1 - Figure 7 Based on the above embodiments, in another embodiment of the present invention, the processing table 1 is provided with a support device and an anti-deviation device for supporting water pipes. The support device includes an L-shaped frame 141, rollers 142, trapezoidal blocks 143 and pulley frames 144. The L-shaped frame 141 is fixedly installed at the bottom of the sliding frame 2. The rollers 142 are rotatably installed on the inner wall of the L-shaped frame 141. The trapezoidal blocks 143 are slidably installed on the inner wall of the processing table 1. The pulley frames 144 are fixed to the surface of the trapezoidal blocks 143. The pulley frames 144 move upward to support the bottom of the water pipes, preventing one end of the water pipes from tilting downwards, which would cause the welding joints of the two water pipes to be misaligned and affect the normal welding of the welding machine.

[0034] A fixing plate 145 is fixedly installed on the surface of the pulley frame 144. A brush 146 is fixedly installed on the top of the fixing plate 145. A collection groove 147 is slidably installed on the bottom of the processing table 1 to prevent welding slag from forming unevenness at the welding point, which would affect the strength and sealing of the welding. Cleaning the welding slag can ensure that the welding surface is smooth, thereby improving the welding quality and enhancing the strength of the connection.

[0035] A No. 3 spring is installed between the trapezoidal block 143 and the processing table 1. When the sliding frame 2 drives the L-shaped frame 141 and the roller 142 to reset, the elastic force of the No. 3 spring will drive the trapezoidal block 143 to reset. The brush 146 is located below the water pipe.

[0036] In this embodiment, when the sliding frame 2 moves towards the center of the processing table 1, it drives the L-shaped frame 141 to move towards the center of the processing table 1. The movement of the L-shaped frame 141 towards the center of the processing table 1 will drive the roller 142 to move towards the center of the processing table 1. The movement of the roller 142 towards the center of the processing table 1 will push the trapezoidal block 143 upward. The upward movement of the trapezoidal block 143 will drive the pulley frame 144 to move upward. The upward movement of the pulley frame 144 will support the bottom of the water pipe and prevent one end of the water pipe from tilting downward, which would cause the welding joints of the two water pipes to be misaligned and affect the normal welding of the welding machine.

[0037] Simultaneously, the upward movement of the pulley frame 144 will drive the fixed plate 145 to move upward, and the upward movement of the fixed plate 145 will drive the brush 146 to move upward. The brush 146 will contact the water pipe when it moves upward. When the rotating device 3 rotates, it will drive the water pipe to rotate. During the rotation of the water pipe, the welding slag remaining on the water pipe after welding will be scraped off by the brush 146 to prevent the welding slag from forming unevenness at the weld, which would affect the strength and sealing of the weld. Cleaning the welding slag can ensure that the weld surface is smooth, thereby improving the welding quality and enhancing the strength of the connection.

[0038] The anti-deviation device includes a pulley seat 151, a rotating plate 152, and a rotating wheel 153. The pulley seat 151 is fixedly installed on the surface of the fixed plate 145. The rotating plate 152 is rotatably installed on the inner wall of the processing table 1. The rotating wheel 153 is rotatably installed on the surface of the rotating plate 152. By rotating upwards and contacting the surface of the water pipe, the water pipe position is prevented from shifting when the rotating device 3 rotates, which would cause the water pipe interface to be misaligned and affect the welding machine from welding.

[0039] A connecting plate 154 is fixedly installed on the surface of the rotating plate 152. A trapezoidal slide rod 155 is slidably installed on the inner wall of the processing table 1. A sealing baffle 156 is fixedly installed on the inner wall of the collection tank 147. A flip plate 157 is rotatably installed on the inner wall of the collection tank 147. The welding slag is effectively collected through the collection tank 147 to prevent it from falling into the working environment, thereby reducing the impact on workers' health and the working environment. When welding is finished, the sealed collection tank 147 can be directly removed for easy replacement. Welding slag is not easily spilled, improving the collection effect.

[0040] A first torsion spring is provided between the rotating plate 152 and the processing table 1. The rotating plate 152 is reset by the elastic force of the first torsion spring itself. A fourth spring is provided between the processing table 1 and the trapezoidal slide rod 155. The trapezoidal slide rod 155 is reset by the elastic force of the fourth spring itself. A second torsion spring is provided between the rotating plate 152 and the processing table 1.

[0041] The upward movement of the fixed plate 145 causes the pulley seat 151 to move upward. The upward movement of the pulley seat 151 will release the pressure on the rotating plate 152. The rotating plate 152 will be reset by the elastic force of the first torsion spring. The first torsion spring will drive the rotating plate 152 to rotate upward. The upward rotation of the rotating plate 152 will drive the rotating wheel 153 to rotate upward.

[0042] The rotating wheel 153 rotates upward to contact the surface of the water pipe, preventing the water pipe from shifting position when the rotating device 3 rotates, which would cause the water pipe interface to be misaligned and affect the welding machine's welding. At the same time, when the rotating plate 152 rotates upward, it will drive the connecting plate 154 to rotate downward. The downward rotation of the connecting plate 154 will push the trapezoidal slide rod 155 to slide downward. The downward sliding of the trapezoidal slide rod 155 will push the flipping plate 157 to rotate downward. The downward rotation of the flipping plate 157 will open the collection tank 147, allowing the welding slag scraped off by the brush 146 to enter the collection tank 147.

[0043] After welding is completed, the flip plate 157 will be reset and seal the collection tank 147. The collection tank 147 effectively collects the welding slag, preventing it from scattering into the working environment, thereby reducing the impact on workers' health and the working environment. After welding is completed, the sealed collection tank 147 can be directly removed for easy replacement, and the welding slag is not easily spilled, improving the collection effect.

[0044] Although embodiments of the invention 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 the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-angle fixing device for welding water conservancy pipelines, used for fixing pipelines, comprising: The processing table (1) is characterized by: A sliding frame (2) is slidably mounted on the top of the processing table (1), and the sliding frame (2) is driven by a motor; Rotating device (3), which is fixedly mounted on the surface of sliding frame (2); A fixing frame (4) is fixedly installed at the output end of the rotating device (3); Rotating frame (5), the rotating frame (5) is rotatably mounted on the inner wall of fixed frame (4), and the rotating device (3) is used to drive the fixed frame (4) and the rotating frame (5) to rotate; The top of the fixed frame (4) is fixedly installed with a slot (6), the inside of the rotating frame (5) is slidably installed with a sliding plate (7), the sliding plate (7) is used to limit the slot (6), the output end of the rotating device (3) is fixedly installed with a fixed column (8), the surface of the fixed column (8) is slidably installed with a circular plate (9), the output end of the rotating device (3) is fixedly installed with a fixed seat (10), the inner wall of the fixed seat (10) is rotatably installed with a rotating plate (11), the surface of the circular plate (9) is slidably installed with a connecting seat (12), the end of the rotating plate (11) away from the fixed seat (10) is rotatably installed on the inner wall of the connecting seat (12), the surface of the connecting seat (12) is fixedly installed with an arc plate (13), and the processing table (1) is provided with a support device and an anti-deviation device for supporting the water pipe; The support device includes an L-shaped frame (141), rollers (142), trapezoidal blocks (143), and a pulley frame (144). The L-shaped frame (141) is fixedly installed at the bottom of the sliding frame (2). The rollers (142) are rotatably installed on the inner wall of the L-shaped frame (141). The trapezoidal blocks (143) are slidably installed on the inner wall of the processing table (1). The pulley frame (144) fixes the surface of the trapezoidal blocks (143). A fixing plate (145) is fixedly installed on the surface of the pulley frame (144), and a brush (146) is fixedly installed on the top of the fixing plate (145). The anti-deviation device includes a pulley seat (151), a rotating plate (152), and a rotating wheel (153). The pulley seat (151) is fixedly installed on the surface of the fixed plate (145), the rotating plate (152) is rotatably installed on the inner wall of the processing table (1), and the rotating wheel (153) is rotatably installed on the surface of the rotating plate (152). A connecting plate (154) is fixedly installed on the surface of the rotating plate (152), a trapezoidal slide rod (155) is slidably installed on the inner wall of the processing table (1), a collection groove (147) is slidably installed at the bottom of the processing table (1), a sealing baffle (156) is fixedly installed on the inner wall of the collection groove (147), and a flip plate (157) is rotatably installed on the inner wall of the collection groove (147).

2. The multi-angle fixing device for welding water conservancy pipelines according to claim 1, characterized in that: A first spring is provided between the fixed column (8) and the circular plate (9), and a second spring is provided between the circular plate (9) and the connecting seat (12).

3. The multi-angle fixing device for welding water conservancy pipelines according to claim 2, characterized in that: A No. 3 spring is provided between the trapezoidal block (143) and the processing table (1), and the brush (146) is located below the water pipe.

4. The multi-angle fixing device for welding water conservancy pipelines according to claim 3, characterized in that: A first torsion spring is provided between the rotating plate (152) and the processing table (1), a fourth spring is provided between the processing table (1) and the trapezoidal slide rod (155), and a second torsion spring is provided between the rotating plate (152) and the processing table (1).

Citation Information

Patent Citations

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