Pipe welding alignment device

By designing a pipe welding alignment device, which utilizes components such as hydraulic cylinders and springs to achieve rapid alignment and fixation of pipes, the problem of time-consuming and labor-intensive processes in welding large-diameter or long-distance pipes is solved, improving welding efficiency and user experience.

CN224347266UActive Publication Date: 2026-06-12LIUHEFENG (TIANJIN) TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIUHEFENG (TIANJIN) TECHNOLOGY CO LTD
Filing Date
2025-06-09
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Large-diameter or long-distance pipes require frequent adjustments and positioning before welding, which is time-consuming and labor-intensive, affecting welding efficiency and user experience.

Method used

A pipe welding alignment device was designed, including a first clamping block, a second clamping block, a clamping structure, a locking mechanism, and a docking mechanism. The device utilizes components such as hydraulic cylinders and springs to achieve rapid alignment and fixation of pipes.

🎯Benefits of technology

It enables rapid alignment and welding of large-diameter or long-distance pipes, reducing operation time and labor intensity, and improving welding efficiency and user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a pipeline welding alignment device, and belongs to the technical field of pipeline alignment equipment. The pipeline welding alignment device comprises a first clamping block, a second clamping block, a clamping structure, a locking mechanism and a butt joint mechanism. The first clamping block is fixed on the second clamping block through a hinge. Different clamping structures are respectively arranged on the first clamping block and the second clamping block. The clamping structure is arranged to clamp the pipeline. The locking mechanism is arranged on the first clamping block and the second clamping block. The locking mechanism is arranged to fix the first clamping block and the second clamping block together. The butt joint mechanism is arranged on the first clamping block and the second clamping block on one side. The pipeline welding alignment device is convenient for welding large-diameter or long-distance pipelines, and is convenient for quickly aligning and abutting two pipelines, saves time and effort, and brings better use experience to users.
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Description

Technical Field

[0001] This application relates to the field of pipe alignment equipment technology, and more specifically, to a pipe welding alignment device. Background Technology

[0002] Pipes need to be aligned before welding to improve welding quality. Currently, large-diameter or long-distance pipes require constant adjustment using lifting equipment during the alignment process (large-diameter pipes are larger and long-distance pipes are prone to bending). After that, the aligned pipes are fixed in place before welding is finally performed, which is time-consuming and labor-intensive, resulting in a poor user experience. Utility Model Content

[0003] To overcome the above shortcomings, this application provides a pipe welding alignment device, which aims to improve the current situation where large-diameter or long-distance pipes require constant adjustment using lifting tools during the alignment process (large-diameter pipes are large and long-distance pipes are prone to bending), followed by limiting and fixing the aligned pipes, and finally performing welding operations, resulting in time-consuming and labor-intensive operations.

[0004] This application is implemented as follows:

[0005] This application provides a pipe welding alignment device, including a first locking block, a second locking block, a clamping structure, a locking mechanism, and a docking mechanism, wherein the first locking block is fixed to the second locking block by a hinge;

[0006] Different clamping structures are respectively installed on the first clamping block and the second clamping block, and the clamping structures are configured to clamp the pipe;

[0007] The locking mechanism is installed on the first and second blocks, and the locking mechanism is configured to fix the first and second blocks together.

[0008] The docking mechanism is installed on the first and second locking blocks on one side, and the docking mechanism is configured to connect and abut the two pipes together.

[0009] In one embodiment of this application, the clamping structure includes a first hydraulic cylinder and a clamping arm. Different first hydraulic cylinders are fixed on the first clamping block and the second clamping block, respectively, and the piston rod end of the first hydraulic cylinder is fixed on the outer wall of the clamping arm.

[0010] In one embodiment of this application, both the first and second locking blocks are provided with mounting holes, and the cylinder barrel of the first hydraulic cylinder is fixed on the mounting holes.

[0011] In one embodiment of this application, the locking mechanism includes a first square plate, a first guide rod, a second square plate, a second guide rod, a first spring, and a third square plate. The second square plate is fixed to the outer wall of the first locking block, the second guide rod slides through the second square plate, and the first spring is sleeved on the second guide rod.

[0012] The first spring is fixed between the second square plate and the third square plate. The third square plate is fixed on the second guide rod. One end of the first guide rod is fixed on the outer wall of the first square plate. The first guide rod slides through the second locking block and the first locking block in sequence. The second guide rod slides through the first guide rod. The first square plate is attached to the second locking block.

[0013] In one embodiment of this application, the docking mechanism includes a second hydraulic cylinder, a second spring, and a pin. Different second hydraulic cylinders are respectively fixed on the outer walls of the first and second blocks on one side, and the piston rods of different second hydraulic cylinders are inserted into the first and second blocks on the other side.

[0014] Both the first and second locking blocks on one side have countersunk holes. One end of the second spring is fixed in the countersunk hole, and the pin slides through the countersunk hole. The other end of the second spring is fixed on the pin, and one end of the pin is inserted into the piston rod of the second hydraulic cylinder.

[0015] In one embodiment of this application, a second positioning groove is provided on both the first and second locking blocks on one side, and the piston rod end of the second hydraulic cylinder is inserted into the second positioning groove.

[0016] In one embodiment of this application, a first positioning groove is provided on the piston rod of the second hydraulic cylinder, and one end of the pin is inserted into the first positioning groove.

[0017] In one embodiment of this application, a handheld part is also included, with different handheld parts respectively fixed to the outer walls of the first card block and the second card block.

[0018] The beneficial effects of this application are: the pipe welding alignment device obtained by the above design facilitates the welding of large-diameter or long-distance pipes, and facilitates the quick alignment and contact of two pipes, saving time and effort and bringing a better user experience. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the pipe welding alignment device provided in the embodiments of this application;

[0021] Figure 2 A three-dimensional structural diagram of the docking mechanism provided for the embodiments of this application;

[0022] Figure 3 A diagram showing the relationship between the first card block, the second card block, and the clamping structure provided in the embodiments of this application;

[0023] Figure 4 A three-dimensional structural diagram of the locking mechanism provided in the embodiments of this application;

[0024] Figure 5 A diagram showing the relationship between the first locking block and the locking mechanism provided for embodiments of this application;

[0025] Figure 6 A cross-sectional view of the first card block provided for an embodiment of this application;

[0026] Figure 7 Provided for the implementation of this application Figure 6 A magnified view of region A in the middle.

[0027] In the diagram: 110-First clamping block; 120-Second clamping block; 130-Clamping structure; 131-First hydraulic cylinder; 132-Clamping arm; 133-Mounting hole; 140-Locking mechanism; 141-First square plate; 142-First guide rod; 143-Second square plate; 144-Second guide rod; 145-First spring; 146-Third square plate; 150-Docking mechanism; 151-Second hydraulic cylinder; 152-First positioning groove; 153-Second positioning groove; 154-Counterhole; 155-Second spring; 156-Pin; 160-Handheld part. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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 a part of the embodiments of this application, not all of them. 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.

[0029] Example

[0030] Please see Figures 1-7 This application provides a technical solution: a pipe welding alignment device, including a first locking block 110, a second locking block 120, a clamping structure 130, a locking mechanism 140, and a docking mechanism 150. The first locking block 110 is fixed to the second locking block 120 by a hinge. It also includes a hand-held part 160. Different hand-held parts 160 are respectively fixed to the outer walls of the first locking block 110 and the second locking block 120. The hand-held part 160 is provided to facilitate carrying the first locking block 110 and the second locking block 120. In this embodiment, the hand-held part 160 is a handle. In this embodiment, an external controller is provided. The controller is used to control the operation of the first hydraulic cylinder 131 and the second hydraulic cylinder 151.

[0031] Different clamping structures 130 are respectively installed on the first clamping block 110 and the second clamping block 120. The clamping structure 130 is used to clamp the pipe. The clamping structure 130 includes a first hydraulic cylinder 131 and a clamping arm 132. Different first hydraulic cylinders 131 are respectively fixed on the first clamping block 110 and the second clamping block 120. The piston rod end of the first hydraulic cylinder 131 is fixed on the outer wall of the clamping arm 132. The first clamping block 110 and the second clamping block 120 are both provided with mounting holes 133. The cylinder of the first hydraulic cylinder 131 is fixed on the mounting hole 133.

[0032] A locking mechanism 140 is mounted on the first locking block 110 and the second locking block 120. The locking mechanism 140 is configured to fix the first locking block 110 and the second locking block 120 together. The locking mechanism 140 includes a first square plate 141, a first guide rod 142, a second square plate 143, a second guide rod 144, a first spring 145, and a third square plate 146. The second square plate 143 is fixed to the outer wall of the first locking block 110, and the second guide rod 144 slides through the second square plate 143. The first spring 145 is sleeved on the second guide rod 144. The first spring 145 is fixed between the second square plate 143 and the third square plate 146. The third square plate 146 is fixed on the second guide rod 144. One end of the first guide rod 142 is fixed on the outer wall of the first square plate 141. The first guide rod 142 slides through the second locking block 120 and the first locking block 110 in sequence. The second guide rod 144 slides through the first guide rod 142. The first square plate 141 is attached to the second locking block 120.

[0033] The docking mechanism 150 is installed on the first locking block 110 and the second locking block 120 on one side. The docking mechanism 150 is designed to connect and abut two pipes together. The docking mechanism 150 includes a second hydraulic cylinder 151, a second spring 155, and a pin 156. Different second hydraulic cylinders 151 are fixed to the outer walls of the first locking block 110 and the second locking block 120 on one side, respectively. The piston rods of different second hydraulic cylinders 151 are inserted into the first locking block 110 and the second locking block 120 on the other side. Each of the first locking blocks 110 and the second locking block 120 on one side has a recessed section. Hole 154, one end of the second spring 155 is fixed in the countersunk hole 154, pin 156 slides through the countersunk hole 154, the other end of the second spring 155 is fixed on the pin 156, one end of the pin 156 is inserted into the piston rod of the second hydraulic cylinder 151, the first locking block 110 and the second locking block 120 on one side are both provided with second positioning grooves 153, the end of the piston rod of the second hydraulic cylinder 151 is inserted into the second positioning groove 153, the piston rod of the second hydraulic cylinder 151 is provided with a first positioning groove 152, one end of the pin 156 is inserted into the first positioning groove 152.

[0034] Specifically, the working principle of this pipe welding alignment device is as follows: During use, based on the diameter of the pipe to be welded, select the appropriate first locking block 110 and second locking block 120. Then, lift the third-shaped plate 146 to disengage the second guide rod 144 from the first guide rod 142. Next, remove the first guide rod 142 from the first locking block 110 and second locking block 120. Then, open the first locking block 110 and second locking block 120, and then place them onto the pipe, exposing the welded portion. Finally, close the first locking block 110 and second locking block 120 together. First, lift the third-party shaped plate 146, and pass the first guide rod 142 through the first locking block 110 and the second locking block 120 in sequence. Then, release the third-party shaped plate 146. Under the reaction force of the first spring 145, the second guide rod 144 passes through the first guide rod 142, thus securing the first locking block 110 and the second locking block 120 onto the pipe. Then, follow the above steps to secure another set of first locking blocks 110 and second locking blocks 120 onto another pipe. Afterward, use the controller to control the first hydraulic cylinder 131 to work. Multiple sets of first hydraulic cylinders 131 work synchronously, and the piston rod of the first hydraulic cylinder 131 extends. Multiple clamping arms 132 clamp and fix the pipe in place. Then, using a lifting device and a handheld part 160, the first clamping block 110 and the second clamping block 120 on one side are lifted, and the pin 156 is pulled, so that the end of the pin 156 enters the countersunk hole 154. Placing filler between the pin 156 and the countersunk hole 154 can prevent the second spring 155 from retracting. When the second spring 155 needs to retract, simply remove the filler. Then, using the lifting device, the piston rod end of the second hydraulic cylinder 151 is inserted into the second positioning groove 153. After that, the pin 156 is released, and under the reaction force of the second spring 155, the pin... The end of rod 156 enters the first positioning groove 152. Due to the synchronous operation of the first hydraulic cylinders 131 on both sides, the center lines of the two pipes are aligned, thus achieving pipe alignment. Then, the second hydraulic cylinder 151 operates, and the retraction of the piston rod of the second hydraulic cylinder 151 causes the two pipes to contact and align. Since there is a gap between the two first locking blocks 110 or the second locking block 120, it is convenient to weld the connection. This pipe welding alignment device is convenient for welding large-diameter or long-distance pipes, and it is convenient to quickly align and contact the two pipes, saving time and effort and providing users with a better user experience.

[0035] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

Claims

1. A pipe welding alignment device, characterized in that, It includes a first locking block (110), a second locking block (120), a clamping structure (130), a locking mechanism (140), and a docking mechanism (150). The first locking block (110) is fixed to the second locking block (120) by a hinge. Different clamping structures (130) are respectively installed on the first clamping block (110) and the second clamping block (120), and the clamping structures (130) are configured to clamp the pipe; The locking mechanism (140) is installed on the first locking block (110) and the second locking block (120), and the locking mechanism (140) is configured to fix the first locking block (110) and the second locking block (120) together; The docking mechanism (150) is installed on the first locking block (110) and the second locking block (120) on one side, and the docking mechanism (150) is configured to dock the two pipes together.

2. The pipe welding alignment device according to claim 1, characterized in that, The clamping structure (130) includes a first hydraulic cylinder (131) and a clamping arm (132). Different first hydraulic cylinders (131) are fixed on the first clamping block (110) and the second clamping block (120) respectively. The piston rod end of the first hydraulic cylinder (131) is fixed on the outer wall of the clamping arm (132).

3. The pipe welding alignment device according to claim 2, characterized in that, Both the first locking block (110) and the second locking block (120) are provided with mounting holes (133), and the cylinder of the first hydraulic cylinder (131) is fixed on the mounting holes (133).

4. The pipe welding alignment device according to claim 1, characterized in that, The locking mechanism (140) includes a first square plate (141), a first guide rod (142), a second square plate (143), a second guide rod (144), a first spring (145), and a third square plate (146). The second square plate (143) is fixed on the outer wall of the first locking block (110), the second guide rod (144) slides through the second square plate (143), and the first spring (145) is sleeved on the second guide rod (144). The first spring (145) is fixed between the second square plate (143) and the third square plate (146), the third square plate (146) is fixed on the second guide rod (144), one end of the first guide rod (142) is fixed on the outer wall of the first square plate (141), the first guide rod (142) slides through the second locking block (120) and the first locking block (110) in sequence, the second guide rod (144) slides through the first guide rod (142), and the first square plate (141) is attached to the second locking block (120).

5. The pipe welding alignment device according to claim 1, characterized in that, The docking mechanism (150) includes a second hydraulic cylinder (151), a second spring (155), and a pin (156). Different second hydraulic cylinders (151) are fixed on the outer walls of the first block (110) and the second block (120) on one side, respectively. The piston rods of different second hydraulic cylinders (151) are inserted into the first block (110) and the second block (120) on the other side. On one side, the first locking block (110) and the second locking block (120) are both provided with countersunk holes (154). One end of the second spring (155) is fixed in the countersunk hole (154). The pin (156) slides through the countersunk hole (154). The other end of the second spring (155) is fixed on the pin (156). One end of the pin (156) is inserted into the piston rod of the second hydraulic cylinder (151).

6. The pipe welding alignment device according to claim 5, characterized in that, A second positioning groove (153) is provided on both the first locking block (110) and the second locking block (120) on one side, and the piston rod end of the second hydraulic cylinder (151) is inserted into the second positioning groove (153).

7. The pipe welding alignment device according to claim 5, characterized in that, The piston rod of the second hydraulic cylinder (151) is provided with a first positioning groove (152), and one end of the pin (156) is inserted into the first positioning groove (152).

8. The pipe welding alignment device according to claim 1, characterized in that, It also includes a hand-held part (160), and different hand-held parts (160) are respectively fixed to the outer walls of the first card block (110) and the second card block (120).