A pipeline alignment device

Abstract

This utility model relates to the field of pipeline laying technology, specifically to a pipeline alignment device. It includes two outer sleeve assemblies, which are respectively fitted onto the outside of two pipelines to be connected. The two outer sleeve assemblies are connected by two connecting assemblies. Each outer sleeve assembly includes two symmetrically arranged fitting units, each fitting unit comprising a main arc-shaped plate with secondary arc-shaped plates fixed to both ends. The curvature directions of the main and secondary arc-shaped plates are the same. After the two fitting units are fitted onto the outside of the pipelines, the two main arc-shaped plates form an inner cylinder, and the two secondary arc-shaped plates on the same side form an outer cylinder. The connecting assemblies include connecting rods with pressure rollers fitted onto them, and stabilizing ends fitted onto both ends of the connecting rods. This device, through its split fitting, magnetic positioning, exposed joints, and modular connection design, achieves efficient, accurate, and safe pipeline alignment, and is particularly suitable for complex working conditions such as oilfields where rapid installation and flexible welding are required.

Description

Technical Field

[0001] This utility model relates to the field of pipeline laying technology, specifically to a pipeline alignment device. Background Technology

[0002] When replacing or installing new pipelines at the oilfield, the two pipelines are aligned before welding. Currently, the method for welding after pipeline alignment is as follows: it requires two people to operate. One operator adjusts the two pipelines to make them aligned, and the other operator performs the welding operation on the aligned pipelines. This operation method not only requires a good working relationship between the two operators, but also poses certain safety risks.

[0003] Patent document CN217371202U discloses a pipe butt welding alignment device on a support, including a sleeve. The sleeve is composed of two semi-circular pipes seamlessly spliced ​​together. Connecting plates are fixedly connected to the outer walls on both sides of the two semi-circular pipes. Each connecting plate has two screw holes. The sleeve is fixed by screws through the screw holes on the connecting plates. Four openings are opened on the arc-shaped outer wall of the sleeve, and a lead screw is inserted into each opening. A fixing block is fixedly connected to the outer wall of the sleeve at the opening. A rotating disk is rotatably connected to the fixing block. The lead screw passes through the inside of the fixing block and the rotating disk and engages with the inner wall of the rotating disk. An extrusion strip is fixedly connected to the bottom of the lead screw, and multiple rollers are embedded in the bottom of the extrusion strip. First, assemble and fix the sleeve using the connecting plates on both sides and screws. Then, fit the sleeve onto the outside of the pipes to be joined. Rotating the rotating disc moves the internally engaged threaded rods up and down. The pressing strip at the bottom of the threaded rods, along with rollers, presses against the outer wall of the pipe. After adjusting all four threaded rods, they are fixed against the pipe. At this point, the rollers in the four directions define a circle. The pipe to be welded is inserted inward along the rollers. The rollers rotate freely, facilitating the insertion of the pipe to be welded. Since the four points define the same circle, the pipe and the pipe to be welded are perfectly aligned. Weld the aligned pipes. When welding two pipes, the joint is located inside the sleeve, making the welding process inconvenient.

[0004] Patent document CN210587744U discloses a welding device for drip irrigation pipe connectors, including a pipe body and a connecting shaft. The pipe body consists of a left pipe body and a right pipe body, both of which are semi-circular ring-shaped structures. The left ends of the two pipe bodies are hinged together by the connecting shaft, and an opening is provided between their right ends. A fastening bolt is installed in the opening. A slot is provided on one side of the middle of the pipe body. After installation, this device can effectively align the pipes to be welded, and the slot facilitates welding of the aligned pipes. However, in field operation, in order to improve the alignment quality after pipe welding, circumferential spot welding is generally required at the joint of the two pipes to prevent the pipes from shifting during welding. After aligning the pipes using this device, the device still needs to be rotated when circumferential welding is required, making circumferential spot welding relatively cumbersome. Utility Model Content

[0005] The main purpose of this utility model is to provide a pipeline alignment device that is easy to install and disassemble and facilitates circumferential spot welding of the joint between two pipes.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0007] A pipeline alignment device includes two outer sleeve assemblies, which are respectively fitted onto the outside of two pipelines to be connected. The two outer sleeve assemblies are connected by two connecting assemblies. Each outer sleeve assembly includes two symmetrically arranged fitting units, each fitting unit including a main arc plate. Both ends of the main arc plate are fixed with secondary arc plates. The curvature directions of the main arc plate and the secondary arc plates are the same. After the two fitting units are fitted onto the outside of the pipelines, the two main arc plates form an inner cylinder, and the two secondary arc plates on the same side form an outer cylinder. The connecting assemblies include connecting rods, on which pressure rollers are fitted. Both ends of the connecting rods are fitted with stabilizing ends, each stabilizing end including an end sleeve. The inner edge of the end sleeve contacts the outer edge of the connecting rod. A collar is concentrically fixed on the side of the end sleeve facing the pressure roller. Two clamping plates are fixed on the end of the collar facing the pressure roller. The clamping plates are arc-shaped, and the two secondary arc plates forming the outer cylinder are located between the two clamping plates on one side.

[0008] Specifically, the main arc-shaped plate and the secondary arc-shaped plate thereon are fixedly connected by a reinforcing plate.

[0009] Specifically, the two clamping plates at the end of the collar facing the pressure roller are symmetrically arranged according to the axis of the collar.

[0010] Specifically, the pressure roller is concentric with the connecting rod.

[0011] Specifically, a magnet is embedded and fixed inside the main arc-shaped plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. The outer casing assembly consists of two symmetrical sleeve units. The main arc plate and the secondary arc plate are fixed by a reinforcing plate. During installation, simply wrap the two sleeve units around the pipe and close them, simplifying the operation. The main arc plate has embedded magnets, which quickly adhere to the pipe surface using magnetic attraction, reducing the need for manual fixing, improving installation efficiency, and preventing slippage. The stabilizing end is engaged with the secondary arc plate of the outer cylinder via a clamp. During disassembly, simply remove the stabilizing end at both ends of the connecting rod to separate the sleeve unit.

[0014] 2. The inner cylinder formed by the main arc plate only partially encloses the pipe, leaving the joint area directly exposed. Circumferential spot welding can be performed without a rotating device during welding, avoiding the problem of traditional sleeves obscuring the joint. The pressure roller and connecting rod are concentrically arranged, providing rolling support during pipe docking, allowing for fine-tuning of the pipe angle to ensure alignment accuracy, while reducing frictional resistance and facilitating adjustments to the welding position.

[0015] 3. The main arc plate and the secondary arc plate form a double-layer structure to enhance the resistance to deformation; the reinforcing plate further improves the overall rigidity of the sleeve unit, and the arc-shaped clamps on both sides of the collar are symmetrically distributed around the axis to evenly clamp the secondary arc plate of the outer cylinder, preventing the offset caused by uneven force and ensuring that the axes of the two pipes are strictly aligned.

[0016] 4. This technical solution allows a single person to complete pipe alignment and welding, reducing operational risks and coordination error rates. The end sleeve and connecting rod are in close contact, and the collar and clamp form a double limit, preventing the device from loosening due to vibration or external impact, and ensuring the stability of the welding process.

[0017] 5. The mounting units and connecting components can be mass-produced to fit various pipe sizes, reducing customization costs; the device suffers no structural damage after disassembly and can be reused in different engineering scenarios. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the device in use.

[0019] Figure 2 This is a top view of the device in use.

[0020] Figure 3 A schematic diagram showing the connection between the main arc plate and the secondary arc plate.

[0021] Figure 4 Side view of the stable end.

[0022] Figure 5 for Figure 4 Sectional view along the AA direction.

[0023] The components in the attached diagram are named as follows: 1. Main arc plate, 2. Secondary arc plate, 3. Reinforcing plate, 4. Collar, 5. Clamping plate, 6. End sleeve, 7. Joint, 8. Connecting rod, 9. Pressure roller, 10. Pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1: Refer to Figures 1-5 As shown, a pipeline alignment device includes two outer sleeve assemblies, which are respectively fitted onto the outside of two pipes 10 that need to be connected, and the two outer sleeve assemblies are connected by two connecting assemblies.

[0026] The outer casing assembly includes two symmetrically arranged sleeve units.

[0027] The sleeve unit includes a main arc plate 1, with secondary arc plates 2 fixed at both ends of the main arc plate 1. The main arc plate 1 and the secondary arc plates 2 on it are fixedly connected by a reinforcing plate 3. The curvature directions of the main arc plate 1 and the secondary arc plates 2 are the same. After the two sleeve units are sleeved on the outside of the pipe 10, the two main arc plates 1 form an inner cylinder, and the two secondary arc plates 2 on the same side form an outer cylinder.

[0028] The connecting assembly includes a connecting rod 8, on which a pressure roller 9 is fitted, and the pressure roller 9 is concentric with the connecting rod 8. Stable ends are fitted at both ends of the connecting rod 8.

[0029] The stabilizing end includes an end sleeve 6, the inner edge of which contacts the outer edge of the connecting rod 8. A collar 4 is concentrically fixed on the side of the end sleeve 6 facing the pressure roller 9. Two clamping plates 5 are fixed on the end of the collar 4 facing the pressure roller 9, and the two clamping plates 5 are symmetrically arranged according to the axis of the collar 4. The clamping plates 5 are arc-shaped, and two secondary arc-shaped plates 2 forming the outer cylinder are located between the two clamping plates 5 on one side.

[0030] When it is necessary to align the two pipes 10, the two outer sleeve assemblies are respectively fitted onto the outside of the two pipes 10 that need to be connected. After the outer sleeve assemblies are fitted onto the outside of the pipes 10, the two main arc plates 1 form an inner cylinder, and the two secondary arc plates 2 on the same side form an outer cylinder.

[0031] Then, the two clamping plates 5 on the collar 4 are fitted onto the outside of the outer cylinder formed by the two sub-arc plates 2, thereby stabilizing the two fitting units on the outside of the pipe 10.

[0032] This aligns the pressure roller 9 with the outer cylinder of the outer sleeve assembly, and the connecting rod 8 passes through the outer cylinder, the pressure roller 9, and the stabilizing end. At this point, the two pipes 10 are aligned, and the joint 7 of the two pipes 10 can be spot welded circumferentially.

[0033] After the pipe 10 is welded, the sleeve unit and connecting components can be separated from the pipe 10 by disassembling the stabilizing ends on both sides of the connecting rod 8. This device is easy to disassemble.

[0034] Example 2: Based on Example 1, a magnet is embedded and fixed inside the main arc plate 1.

[0035] Since the main arc plate 1 is embedded with a magnet, the main arc plate 1 can be stably attracted to the pipe 10 under the magnetic attraction of the magnet, which makes it convenient for the main arc plate 1 to be positioned on the outside of the pipe 10.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pipeline alignment device, comprising two outer sleeve assemblies, the two outer sleeve assemblies being respectively fitted over the outside of two pipes (10) to be connected, the two outer sleeve assemblies being connected by two connecting assemblies, characterized in that, The outer casing assembly includes two symmetrically arranged fitting units. Each fitting unit includes a main arc plate (1), with secondary arc plates (2) fixed at both ends of the main arc plate (1). The curvature directions of the main arc plate (1) and the secondary arc plates (2) are the same. After the two fitting units are fitted onto the outside of the pipe (10), the two main arc plates (1) form an inner cylinder, and the two secondary arc plates (2) on the same side form an outer cylinder. The connecting assembly includes a connecting rod (8). The upper sleeve is fitted with a pressure roller (9), and both ends of the connecting rod (8) are fitted with stabilizing ends. The stabilizing ends include end sleeves (6). The inner edge of the end sleeve (6) contacts the outer edge of the connecting rod (8). A collar (4) is concentrically fixed on the side of the end sleeve (6) facing the pressure roller (9). Two clamping plates (5) are fixed on the end of the collar (4) facing the pressure roller (9). The clamping plates (5) are arc-shaped, and the two secondary arc plates (2) forming the outer cylinder are located between the two clamping plates (5) on one side.

2. The pipeline alignment device according to claim 1, characterized in that, The main arc plate (1) and its secondary arc plate (2) are fixedly connected by a reinforcing plate (3).

3. The pipeline alignment device according to claim 1, characterized in that, The two clamps (5) of the collar (4) facing the pressure roller (9) are symmetrically arranged according to the axis of the collar (4).

4. The pipeline alignment device according to claim 1, characterized in that, The pressure roller (9) is concentric with the connecting rod (8).

5. The pipeline alignment device according to claim 1, characterized in that, A magnet is embedded and fixed inside the main arc plate (1).

Images