An auxiliary welding device for oil and gas pipeline laying

Abstract

An auxiliary welding device for oil and gas pipeline laying includes an auxiliary clamping mechanism on the top of a base. The auxiliary clamping mechanism comprises a fixed plate fixedly connected to the top of the base, and a motor mounted on the side of the fixed plate. This invention utilizes the driving force of the motor to activate components such as a telescopic rod, a hollow disc, a return spring, a limiting block, and a compression ring. This allows the pipeline to be placed inside the hollow disc. When the pipeline enters the hollow disc, it contacts the limiting block fixed to the other end of the return spring and is compressed along the inclined surface of the limiting block. When the limiting block is compressed, the return spring is in a taut state, preventing displacement of the pipeline due to other forces during welding, thereby improving welding accuracy and quality.

Description

Technical Field

[0001] This utility model belongs to the field of oil and gas pipeline laying technology, and in particular relates to an auxiliary welding device for oil and gas pipeline laying. Background Technology

[0002] Welding is a crucial step in the laying of oil and gas pipelines, ensuring the sealing, strength, and durability of pipeline connections. To improve the efficiency, quality, and safety of welding, many auxiliary welding devices have emerged. Pipelines are often laid in rugged terrain, deep sea, or underground, and the harsh construction site environment limits the use of conventional equipment. Oil and gas pipelines must have high sealing and corrosion resistance, and welded joints are an important guarantee of pipeline quality.

[0003] According to a public announcement (Publication No.: CN213730262U), a support auxiliary device for welding large-diameter oil and gas pipelines includes a left top plate. A lifting rod is movably installed at the center of the left top plate. Sliding tenons are fixedly installed on both the front and rear sides of the lifting rod. A square hole is opened at the bottom of the lifting rod, and a sliding rod is movably installed in the square hole. An air storage bag is fixedly installed at the right top of the sliding rod. An air outlet is opened in the middle of the air storage bag. A water injection hole is opened at the left top of the sliding rod, which is connected to the air storage bag. An air vent is opened at the left top of the sliding rod.

[0004] However, in the above design, the pipeline is susceptible to displacement due to other forces during welding, leading to welding errors and affecting the welding quality. Therefore, we need an auxiliary welding device for oil and gas pipeline laying. Utility Model Content

[0005] The purpose of this utility model is to provide an auxiliary welding device for laying oil and gas pipelines. Through the driving force of the motor, components such as the telescopic rod, hollow disc, return spring, limit block, hollow block, limit rod, and extrusion ring are driven to cooperate with each other, so as to put the pipeline into the interior of the hollow disc. When the pipeline enters the interior of the hollow disc, it contacts the limit block fixed at the other end of the return spring and is squeezed along the inclined surface of the limit block, thus solving the existing problems.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to an auxiliary welding device for laying oil and gas pipelines, comprising a base, an auxiliary clamping mechanism on the top of the base, the auxiliary clamping mechanism including a fixing plate fixedly connected to the top of the base, a motor on the side of the fixing plate, a telescopic rod fixedly connected to the end of the output shaft of the motor, a hollow disk fixedly connected to the circumference of the telescopic rod, a return spring fixedly connected to the inner wall of the hollow disk, a limit block fixedly connected to the end of the return spring away from the hollow disk, a connecting plate fixedly connected to the top of the base, a limit disk rotatably connected to the side of the connecting plate, and a support plate fixedly connected to the side of the connecting plate.

[0008] Furthermore, a support frame is fixedly connected to the bottom of the base, a hollow block is fixedly connected to the circumference of the telescopic rod, a rotating shaft is rotatably connected to the inner side wall of the hollow block, a limit rod is fixedly connected to the circumference of the rotating shaft, and a compression ring is provided on the outer surface of the limit rod. The design of the compression ring is conducive to making the limit rod move downward in an arc shape during the process of pushing the compression ring, thereby squeezing and limiting the pipeline.

[0009] Furthermore, the side cross-section of the hollow block is set to concave, and the side cross-section of the limiting rod is set to L-shaped. The above design is conducive to further limiting the pipe.

[0010] Furthermore, a windproof mechanism is provided on the top of the base. The windproof mechanism includes a vacuum block, and a connecting shaft is rotatably connected to the inner wall of the vacuum block. A windproof plate is fixedly connected to the circumferential surface of the connecting shaft. The design of the windproof plate is beneficial for preventing wind from entering the pipes during the welding process, thereby maintaining temperature stability.

[0011] Furthermore, a fixed shaft is rotatably connected to the top of the base, a connecting spring is fixedly connected to the circumferential surface of the fixed shaft, a rectangular plate is fixedly connected to the circumferential surface of the fixed shaft, and a contact plate is fixedly connected to the top of the rectangular plate. The design of the contact plate is beneficial for limiting the windproof plate and keeping it in a vertical state.

[0012] Furthermore, the side cross-section of the contact plate is set to L-shape, and the contact plate is in contact with the windproof plate. The side cross-section of the windproof plate is set to arc shape. The above design facilitates operation by the staff.

[0013] Furthermore, the support legs are arranged in several units and are symmetrical to each other along the vertical central axis at the bottom of the base. This design helps to enhance the stability of the base.

[0014] This utility model has the following beneficial effects:

[0015] This invention utilizes the driving force of a motor to coordinate components such as a telescopic rod, a hollow disc, a return spring, a limiting block, a limiting rod, and a compression ring. This allows the pipe to be placed inside the hollow disc. When the pipe enters the hollow disc, it contacts the limiting block fixed to the other end of the return spring and is compressed along the inclined surface of the limiting block. When the limiting block is compressed, the return spring is in a taut state, preventing the pipe from being displaced by other forces during the welding process, thereby improving the precision and quality of the welding.

[0016] This invention utilizes the rotational force of a fixed shaft to drive the vacuum block, connecting shaft, windproof plate, connecting spring, rectangular plate, contact plate, and other components to work together. During the welding process, the worker first pulls the contact plate fixed to the top of the rectangular plate in an arc motion, and then moves the windproof plate fixed to the circumference of the connecting shaft to make it vertical. At this point, the worker releases the contact plate, and the connecting spring drives the fixed shaft to reset. By taking windproof measures, the welding environment can be better controlled, ensuring welding quality. Attached Figure Description

[0017] Figure 1 This is a three-dimensional appearance diagram of the present utility model;

[0018] Figure 2 This is a three-dimensional schematic diagram of the interior of the hollow disk of this utility model;

[0019] Figure 3 This is a three-dimensional schematic diagram of the limiting plate of this utility model;

[0020] Figure 4 This is a three-dimensional perspective view of the windproof panel of this utility model;

[0021] Figure 5 For the present utility model Figure 2 Enlarged 3D schematic diagram at point A in the middle;

[0022] Figure 6 For the present utility model Figure 4 A magnified 3D schematic diagram of B in the diagram.

[0023] Attached Figures: 1. Base; 2. Auxiliary clamping mechanism; 21. Fixing plate; 22. Motor; 23. Telescopic rod; 24. Hollow disc; 25. Return spring; 26. Limiting block; 27. Hollow block; 28. Limiting rod; 29. ​​Extrusion ring; 210. Connecting plate; 211. Limiting disc; 212. Support plate; 213. Rotating shaft; 3. Windproof mechanism; 31. Vacuum block; 32. Connecting shaft; 33. Windproof plate; 34. Fixing shaft; 35. Connecting spring; 36. Rectangular plate; 37. Contact plate; 4. Support legs. Detailed Implementation

[0024] An auxiliary welding device for laying oil and gas pipelines includes a base 1. An auxiliary clamping mechanism 2 is provided on the top of the base 1. The auxiliary clamping mechanism 2 includes a fixing plate 21, which is fixedly connected to the top of the base 1. A motor 22 is provided on the side of the fixing plate 21. A telescopic rod 23 is fixedly connected to the end of the output shaft of the motor 22. A hollow disk 24 is fixedly connected to the circumferential surface of the telescopic rod 23. A return spring 25 is fixedly connected to the inner wall of the hollow disk 24. A limit block 26 is fixedly connected to the end of the return spring 25 away from the hollow disk 24. A connecting plate 210 is fixedly connected to the top of the base 1. A limit disk 211 is rotatably connected to the side of the connecting plate 210. A support plate 212 is fixedly connected to the side of the connecting plate 210.

[0025] A support bracket 4 is fixedly connected to the bottom of the base 1. A hollow block 27 is fixedly connected to the circumferential surface of the telescopic rod 23. A rotating shaft 213 is rotatably connected to the inner side wall of the hollow block 27. A limit rod 28 is fixedly connected to the circumferential surface of the rotating shaft 213. An extrusion ring 29 is provided on the outer surface of the limit rod 28. The design of the extrusion ring 29 is conducive to making the limit rod 28 move downward in an arc shape during the process of pushing the extrusion ring 29, thereby extruding and limiting the pipeline.

[0026] The side cross-section of the hollow block 27 is set to concave, and the side cross-section of the limiting rod 28 is set to L-shaped. The above design is conducive to further limiting the pipe.

[0027] The top of the base 1 is provided with a windproof mechanism 3, which includes a vacuum block 31. The inner side wall of the vacuum block 31 is rotatably connected to a connecting shaft 32. A windproof plate 33 is fixedly connected to the circumferential surface of the connecting shaft 32. The design of the windproof plate 33 is conducive to windproofing the pipes during the welding process, thereby maintaining temperature stability.

[0028] A fixed shaft 34 is rotatably connected to the top of the base 1. A connecting spring 35 is fixedly connected to the circumferential surface of the fixed shaft 34. A rectangular plate 36 is fixedly connected to the circumferential surface of the fixed shaft 34. A contact plate 37 is fixedly connected to the top of the rectangular plate 36. The design of the contact plate 37 is conducive to limiting the windproof plate 33 and keeping it in a vertical state.

[0029] The side section of the contact plate 37 is set to L-shape, and the contact plate 37 is in contact with the windproof plate 33. The side section of the windproof plate 33 is set to arc shape. The above design is conducive to the operation of the staff.

[0030] The support legs 4 are arranged in several units and are symmetrical about each other along the vertical central axis at the bottom of the base 1. This design helps to enhance the stability of the base 1. Example 1

[0031] When welding is required on the pipe, the worker places the pipe into the hollow plate 24. Upon entering the hollow plate 24, the pipe contacts the limiting block 26 fixed to the other end of the return spring 25, and is compressed along the inclined surface of the limiting block 26. When the limiting block 26 is compressed, the return spring 25 is in a taut state, thus completing the first fixing of the pipe. Subsequently, the worker pushes the compression ring 29 located on the outer surface of the limiting rod 28, causing the limiting rod 28 to be compressed, which drives the rotating shaft 213 rotating on the inner wall of the hollow block 27 to rotate, simultaneously causing the limiting rod 28 to move downwards in an arc. As the worker continues to push the compression ring 29, the limiting rod 28 performs a second limiting of the pipe. After fixing the first section of pipe, the worker places the second section of pipe on the inner wall of the support plate 212, while simultaneously allowing one end of the pipe to enter the hollow plate 24. After the inner wall of the limiting plate 211 contacts the inner side wall of the limiting plate 211, the worker begins welding. After the upper part is welded, the worker starts the motor 22 set on the side of the fixed plate 21 to rotate, thereby driving the telescopic rod 23 fixed at the end of the output shaft to rotate, and at the same time driving the hollow plate 24 to rotate. The rotation of the hollow plate 24 drives the pipe to rotate, which makes it easier for the worker to weld the lower part of the pipe. Finally, during the welding process, the worker first pulls the contact plate 37 fixed on the top of the rectangular plate 36 to make an arc movement, and then moves the windproof plate 33 fixed on the circumference of the connecting shaft 32 to make it vertical. At this time, the worker releases the contact plate 37, and the connecting spring 35 drives the fixed shaft 34 to reset, thereby driving the rectangular plate 36 to reset, and at the same time driving the contact plate 37 to reset and contact the windproof plate 33 to complete the limiting, so that it performs the windproof work.

Claims

1. An auxiliary welding device for laying oil and gas pipelines, comprising a base (1), characterized in that: An auxiliary clamping mechanism (2) is provided on the top of the base (1); the auxiliary clamping mechanism (2) includes a fixed plate (21), the fixed plate (21) is fixedly connected to the top of the base (1), a motor (22) is provided on the side of the fixed plate (21), a telescopic rod (23) is fixedly connected to the end of the output shaft of the motor (22), a hollow disk (24) is fixedly connected to the circumferential surface of the telescopic rod (23), a return spring (25) is fixedly connected to the inner wall of the hollow disk (24), a limit block (26) is fixedly connected to the end of the return spring (25) away from the hollow disk (24), a connecting plate (210) is fixedly connected to the top of the base (1), a limit disk (211) is rotatably connected to the side of the connecting plate (210), and a support plate (212) is fixedly connected to the side of the connecting plate (210).

2. The auxiliary welding device for oil and gas pipeline laying according to claim 1, characterized in that, The bottom of the base (1) is fixedly connected to a support frame (4), the circumferential surface of the telescopic rod (23) is fixedly connected to a hollow block (27), the inner side wall of the hollow block (27) is rotatably connected to a rotating shaft (213), the circumferential surface of the rotating shaft (213) is fixedly connected to a limit rod (28), and the outer surface of the limit rod (28) is provided with an extrusion ring (29).

3. The auxiliary welding device for oil and gas pipeline laying according to claim 2, characterized in that, The side cross section of the hollow block (27) is set to concave, and the side cross section of the limiting rod (28) is set to L-shaped.

4. The auxiliary welding device for oil and gas pipeline laying according to claim 3, characterized in that, The top of the base (1) is provided with a windproof mechanism (3), which includes a vacuum block (31). The inner side wall of the vacuum block (31) is rotatably connected to a connecting shaft (32), and a windproof plate (33) is fixedly connected to the circumferential surface of the connecting shaft (32).

5. The auxiliary welding device for oil and gas pipeline laying according to claim 4, characterized in that, The top of the base (1) is rotatably connected to a fixed shaft (34), the circumferential surface of the fixed shaft (34) is fixedly connected to a connecting spring (35), the circumferential surface of the fixed shaft (34) is fixedly connected to a rectangular plate (36), and the top of the rectangular plate (36) is fixedly connected to a contact plate (37).

6. The auxiliary welding device for oil and gas pipeline laying according to claim 5, characterized in that, The side section of the contact plate (37) is set to L-shape, and the contact plate (37) is in contact with the windproof plate (33). The side section of the windproof plate (33) is set to arc shape.

7. The auxiliary welding device for oil and gas pipeline laying according to claim 2, characterized in that, The support legs (4) are set in several units and are symmetrical to each other along the vertical central axis of the bottom of the base (1).

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