A telescopic external pipe adapter

Abstract

The application provides a telescopic pipe external orifice device, which is composed of two semicircular ring structures and is detachably and spacedly arranged on a pipe near a pipe orifice through a plurality of fixing bolts, and has an installation gap between the semicircular ring structure and the pipe; a plurality of positioning structures are spacedly and fixedly arranged on the outer side of the semicircular ring structure; a telescopic orifice structure is telescopically arranged on the positioning structure, and one end of the telescopic orifice structure is connected to one end of the positioning structure, and the other end of the telescopic orifice structure is movably extended out of the positioning structure and the installation gap and extended to the pipe orifice of the pipe; a plurality of supporting blocks are spacedly and fixedly arranged on the inner side of the semicircular ring structure, and a threaded hole penetrating through the top and the bottom is arranged on the supporting block, and a pressing bolt is threadedly connected to the threaded hole and used for fastening the other end of the telescopic orifice structure extended out of the installation gap. The device reduces the welding joint, improves the welding quality and the welding speed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of oil and gas pipelines, in particular to a telescopic external pipe aligner. BACKGROUND

[0002] The external aligner commonly used in long-distance oil and gas pipelines mainly includes hydraulic external aligner, top screw external aligner, chain external aligner, etc. It is suitable for manual welding and manual semi-automatic welding process. Its structure is simple and the cost is low, so it is widely used in pipeline construction. The long-distance pipeline automatic welding process requires automatic argon arc welding for bottoming, which has new requirements for the pipeline aligner. Generally, the internal aligner is used for the position, but for the aligning and welding of elbows or bent pipes, as well as the construction of some marshy sections and steep sections, the internal aligner cannot be used, while the external aligner can be used for normal aligning and welding. Therefore, the use of external aligner is indispensable. When the traditional aligner is used for pipeline welding, the positioning block divides the whole circle into n equal parts, and the welding is also n segments. When the weld strength is sufficient, the aligner is removed, and the connection of multiple welds is carried out. When automatic welding is used for bottoming, the welding trolley needs to move continuously. The pressing block of the traditional aligner blocks the movement stroke of the trolley head, which cannot work continuously, and even affects the welding quality and efficiency. SUMMARY

[0003] One of the purposes of the present application is to provide a telescopic external pipe aligner to solve the problem of low construction efficiency of the existing external aligner of long-distance oil and gas pipelines.

[0004] The technical solution of the present application is:

[0005] A telescopic external pipe aligner, comprising two half-ring structures, a plurality of fixing bolts, a plurality of pressing bolts, a plurality of supporting blocks, a plurality of positioning structures, and a plurality of telescopic aligning structures; the two half-ring structures are combined into a ring shape, and are detachably and spacedly sleeved on the pipeline at a position close to the pipe opening through a plurality of fixing bolts, and the half-ring structure and the pipeline have an installation gap; a plurality of positioning structures are respectively and fixedly installed on the outer side of the half-ring structure; the telescopic aligning structure is telescopically arranged on the positioning structure, and one end is connected to one end of the positioning structure, and the other end is movably extended out of the positioning structure and the installation gap, and extends to the pipe opening of the pipeline; a plurality of supporting blocks are respectively and fixedly installed on the inner side of the half-ring structure, and a threaded hole penetrating the top and bottom is formed, and the pressing bolt is threadedly connected in the threaded hole and is used for fastening the other end of the telescopic aligning structure extended out of the installation gap.

[0006] As a technical scheme of the present application, a plurality of fixing blocks matched with the fixing bolts are fixedly welded on the outer side of each semi-circular ring structure, a threaded hole penetrating the top and bottom is formed in the fixing block, and the fixing bolt is threadedly connected in the threaded hole and fastened on the outer wall of the pipeline.

[0007] As a technical scheme of the present application, the interval between adjacent fixing bolts is the same.

[0008] As a technical scheme of the present application, the interval between adjacent pressing bolts is the same.

[0009] As a technical scheme of the present application, the two semi-circular ring structures are connected through a bolt.

[0010] As a technical scheme of the present application, the positioning structure comprises two trapezoidal plates and a positioning plate; the two trapezoidal plates are arranged in parallel and at intervals, and the large ends thereof are fixedly connected to the outer side of the semi-circular ring structure, and a rectangular slide is formed in each trapezoidal plate along the length direction; the two side ends of the positioning plate are fixedly connected to the small ends of the two trapezoidal plates; one end of the telescopic aligning structure is connected to the positioning plate, and the other end is movably arranged between the two trapezoidal plates.

[0011] As a technical scheme of the present application, the telescopic aligning structure comprises a U-shaped pressing plate, a compression tension spring, a positioning lug and a connecting bolt; the connecting bolt is movably mounted on the two rectangular slides along the length direction of the rectangular slide; the U-shaped pressing plate is in U shape, and the opening thereof faces the semi-circular ring structure, one end of the U-shaped pressing plate is fixedly connected to the connecting bolt, and the other end extends towards the direction of the pipeline nozzle; the positioning lug is fixedly mounted on the middle part of the U-shaped pressing plate; one end of the compression tension spring is connected to the positioning plate, and the other end is connected to the positioning lug, for driving the U-shaped pressing plate to retract; one end of the pressing bolt is fastened to the U-shaped pressing plate, for fastening the U-shaped pressing plate to the pipeline.

[0012] The present application has the following beneficial effects:

[0013] In the telescopic pipeline outer aligning device of the present application, the problem that the traditional outer aligning device pressing block or top wire blocks the welding path to cause the automatic welding trolley to be unable to continuously weld during the following welding, and the effective following welding length of the corresponding weld is short, is solved, the welding joints are reduced, the weld quality and the welding speed are improved, and the outer aligning device for long-distance pipeline can also be automatically and continuously welded. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as limiting the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0015] Figure 1 The schematic diagram of the telescopic pipe outer adapter provided by the embodiments of the present application is shown in the figure.

[0016] Figure 2 The first angle local enlarged schematic diagram of the telescopic pipe outer adapter provided by the embodiments of the present application is shown in the figure.

[0017] Figure 3 The second angle local enlarged schematic diagram of the telescopic pipe outer adapter provided by the embodiments of the present application is shown in the figure.

[0018] Figure 4 The installation schematic diagram of the telescopic pipe outer adapter provided by the embodiments of the present application is shown in the figure.

[0019] Figure legend: 1-semi-circular ring structure; 2-fixing bolt; 3-pressing bolt; 4-supporting block; 5-fixing block; 6-trapezoidal plate; 7-positioning plate; 8-rectangular slide; 9-U-shaped pressing plate; 10-compression tension spring; 11-positioning ear; 12-connecting bolt; 13-pipe. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the present application.

[0022] It should be noted that: similar numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0023] In the description of the application, it needs to be explained that the terms "upper", "lower", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the application is usually placed, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0024] In addition, in the present application, unless otherwise explicitly specified and limited, the first feature above or below the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature above, above and above the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature below, below and below the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0025] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0026] In the description of the application, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "provided", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] Embodiment:

[0028] Please refer to Figure 1 , and refer to Figures 2 to 4The application provides a telescopic pipe outer aligning device which is mainly used for manual welding, manual semi-automatic welding and automatic welding process and solves the problem that the automatic welding trolley cannot continuously weld during root welding because the traditional outer aligning device block or jack screw blocks the welding travel, reduces the welding joint, improves the welding quality and welding speed. The device mainly comprises two semicircular ring structures 1, a plurality of fixing bolts 2, a plurality of pressing bolts 3, a plurality of supporting blocks 4, a plurality of positioning structures and a plurality of telescopic aligning structures. The two semicircular ring structures 1 are detachably combined into a circular ring through a bolt and are detachably and spacedly sleeved on the pipe 13 near the pipe opening through the fixing bolts 2, and the semicircular ring structure 1 and the pipe 13 have an installation gap. Meanwhile, the positioning structures are spacedly and fixedly installed on the outer side of the semicircular ring structure 1. The telescopic aligning structure is telescopically arranged on the positioning structure, one end of which is connected to one end of the positioning structure, and the other end is movably extended out of the positioning structure and the installation gap and extended to the pipe opening of the pipe 13. The supporting blocks 4 are spacedly and fixedly installed on the inner side of the semicircular ring structure 1 and are provided with threaded holes penetrating through the top and bottom, and the pressing bolts 3 are threadedly connected in the threaded holes and are used for fastening the other end of the telescopic aligning structure extended out of the installation gap.

[0029] Further, in the embodiment, a plurality of fixed blocks 5 matched with the fixing bolts 2 are fixedly welded on the outer side of each semicircular ring structure 1, the fixed blocks 5 are provided with threaded holes penetrating through the top and bottom, and the fixing bolts 2 are threadedly connected in the threaded holes and are fastened on the outer wall of the pipe 13.

[0030] It should be noted that the spacing between the adjacent fixing bolts 2 is the same. Meanwhile, the spacing between the adjacent pressing bolts 3 is the same.

[0031] Further, in the embodiment, the spacing between the positioning structures is the same. Meanwhile, the positioning structure comprises two trapezoidal plates 6 and a positioning plate 7. The two trapezoidal plates 6 are both in trapezoidal structure and are parallelly and spacedly arranged, and the large ends of the trapezoidal plates 6 are fixedly connected to the outer side of the semicircular ring structure 1, and each trapezoidal plate 6 is provided with a rectangular slide 8 along the length direction. The two sides of the positioning plate 7 are fixedly connected to the small ends of the two trapezoidal plates 6, and one end of the telescopic aligning structure is connected to the positioning plate 7, and the other end is telescopically and movably arranged between the two trapezoidal plates 6.

[0032] Further, in the embodiment, the telescopic alignment structure comprises a U-shaped pressing plate 9, a compression tension spring 10, a positioning lug 11 and a connecting bolt 12; the connecting bolt 12 is movably installed on the two rectangular slides 8 along the length direction of the rectangular slide 8; the U-shaped pressing plate 9 is in a U shape and has an opening facing the semicircular ring structure 1; one end of the U-shaped pressing plate 9 is fixedly connected to the connecting bolt 12 and the other end extends towards the direction of the pipe opening of the pipeline 13; the positioning lug 11 is fixedly installed on the middle part of the U-shaped pressing plate 9; one end of the compression tension spring 10 is connected to the positioning plate 7 and the other end is connected to the positioning lug 11, for driving the U-shaped pressing plate 9 to retract; one end of the compression tension spring 10 is fixed to the U-shaped pressing plate 9, for fastening the U-shaped pressing plate 9 to the pipeline 13.

[0033] The operation process of the device is as follows:

[0034] Step one, install two semicircular ring structures 1, set them on the pipeline 13 near the pipe opening, and adjust the positions of the two semicircular ring structures 1 so that the distance between the outer end surface of the two semicircular ring structures 1 and the pipe opening end of the pipeline 13 is 60-70 mm, and install the bolt to combine the two semicircular ring structures 1;

[0035] Step two, use a special wrench to tighten the multiple fixing bolts 2 on the circumferential direction of the two semicircular ring structures 1, and fix the two semicircular ring structures 1 on the pipeline;

[0036] Step three, push the U-shaped pressing plate 9 out of the pipe opening end of the pipeline 13 by 20 mm, use a special wrench to adjust the compression tension spring 10, and let the U-shaped pressing plate 9 adjust the pipe opening misalignment amount, align the pipeline 13, and ensure that the pipe opening of the pipeline 13 is butt-jointed to meet the welding requirements;

[0037] Step four, after the welding starts, when the welding trolley is 40-50 mm away from the next U-shaped pressing plate 9, use a wrench to loosen the compression tension spring 10 and the connecting bolt 12, and the compression tension spring 10 automatically pulls the U-shaped pressing plate 9 away from the welding bead, removes the travel obstacle, and ensures that the welding can continue;

[0038] Step five, after the welding is completed, remove the telescopic pipeline outer alignment device.

[0039] As can be seen from the above, the telescopic pipeline outer alignment device solves the problem that the traditional outer alignment device blocks the welding bead travel caused by the pressing block or the top wire, and the automatic welding trolley cannot continuously weld, the effective follow-welding length of the corresponding weld is short, the welding joints are reduced, the weld quality and the welding speed are improved, and the outer alignment device for the long-distance pipeline 13 can also be fully automatically and continuously welded.

[0040] The above descriptions are only the preferred embodiments of the present application, and are not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A retractable external pipe adapter, characterized in that, The utility model provides a pipeline joint structure, including two half circular ring structure, a plurality of fixed bolt, a plurality of compression bolt, a plurality of support block, a plurality of positioning structure and a plurality of telescopic butt joint structure, two half circular ring structure combination is circular ring, and through a plurality of fixed bolt detachably interval set on the pipeline near the position of pipe, half circular ring structure with the pipeline has installation gap between, a plurality of positioning structure is fixedly installed on the outside of half circular ring structure respectively, telescopic butt joint structure is telescopically arranged on the positioning structure, and one end is connected on the one end of positioning structure, and the other end is movably extended out of the positioning structure and installation gap, and extends to the pipe joint of pipeline, a plurality of support block is fixedly installed on the inside of half circular ring structure respectively, and is provided with threaded hole through top and bottom, compression bolt is screwed in threaded hole, and is used for fastening on the other end of telescopic butt joint structure extended out of installation gap, positioning structure includes two trapezoidal plate and positioning plate, two trapezoidal plate parallel interval arrangement, and big end is fixedly connected on the outside of half circular ring structure, and the rectangular slide of each trapezoidal plate is set up along the length direction, the both sides of positioning plate are fixedly connected on the small end of two trapezoidal plate respectively, one end of telescopic butt joint structure is connected on the positioning plate, and the other end is telescopically movably arranged between two trapezoidal plates, telescopic butt joint structure includes U-shaped pressing plate, compression tension spring, positioning ear and connecting bolt, connecting bolt is movably installed on two rectangular slides along the length direction of rectangular slide, U-shaped pressing plate is U-shaped, and the opening is towards half circular ring structure, one end of U-shaped pressing plate is fixedly connected on connecting bolt, and the other end extends towards the direction of pipeline pipe joint, positioning ear is fixedly installed on the middle part of U-shaped pressing plate, one end of compression tension spring is connected on positioning plate, and the other end is connected on positioning ear, is used for driving U-shaped pressing plate to retract, one end of compression bolt is fastened on U-shaped pressing plate, is used for fastening U-shaped pressing plate on the pipeline.

2. A retractable pipe outlet adapter according to claim 1, wherein, A plurality of fixed blocks matched with the fixed bolts are fixedly welded on the outside of each half circular ring structure, threaded holes penetrating through the top and bottom are formed in the fixed blocks, the fixed bolts are screwed into the threaded holes and fastened to the outer wall of the pipeline.

3. A retractable pipe outlet adapter according to claim 2, wherein, The spacing between adjacent fixed bolts is the same.

4. The retractable pipe outlet adapter of claim 1, wherein, The spacing between adjacent compression bolts is the same.

5. The retractable pipe outlet adapter of claim 1, wherein, The two half circular ring structures are connected by a latch.

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