A device for assisting in the correction of deformation of a pipe end and a method of use

Abstract

The application provides an auxiliary pipe end deformation correction device and a use method. The auxiliary pipe end deformation correction device comprises a first abutting part, a connecting part, a pushing part and a second abutting part. The pushing part is connected between the connecting part and the second abutting part to adjust the distance therebetween. The connecting part is connected with the first abutting part. The device further comprises a first adjusting member and a base. The first adjusting member is connected with the connecting part at an angle. The first adjusting member is rotatably connected with the base to adjust the circumferential position of the first abutting part and the second abutting part in the pipe. The use method of the auxiliary pipe end deformation correction device is as follows. The device is moved to the inside of the pipe end of the pipe to be corrected. The first adjusting member is rotated and fixed, so that the second abutting part is aligned with the pipe wall recess, and the first abutting part is abutted with the corresponding position of the pipe wall. The pushing part is started, and the second abutting part is controlled to push out the pipe wall recess for correction. The application has the beneficial effect of improving the quality and efficiency of pipe butt welding.

Description

Technical Field

[0001] This invention belongs to the field of pipeline construction technology, and in particular relates to an auxiliary pipe end deformation correction device and its usage method. Background Technology

[0002] In existing technologies, large-diameter pipes (such as steel plate welded pipes with diameters of 1.5 to 3 meters) are prone to end deformation due to their own gravity before welding, such as localized indentation at the pipe ends, making it difficult to connect the two pipe ends. Traditional construction methods typically use manual hammering of the pipe wall for rough shaping. This method suffers from several technical problems, including low efficiency, high labor intensity, difficulty in controlling the hammering force leading to pipe damage, and impact on weld quality. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides an auxiliary pipe end deformation correction device and a method of use, which is particularly suitable for assisting in the deformation correction of the ends of large-diameter pipes before ground welding.

[0004] The technical solution adopted in this invention is: an auxiliary pipe end deformation correction device, including a first abutting part, a connecting part, a pushing part and a second abutting part, the pushing part being connected between the connecting part and the second abutting part to adjust the distance between them, the connecting part being connected to the first abutting part, and also including a first adjusting member and a base, the first adjusting member being angularly connected to the connecting part, and the first adjusting member being rotatably connected to the base to adjust the circumferential position of the first abutting part and the second abutting part in the pipe.

[0005] Preferably, a second adjusting member is provided between the connecting part and the first abutting part, and the second adjusting member is movably connected to the connecting part and / or the first abutting part.

[0006] Preferably, the two ends of the second adjusting member are threadedly connected to the connecting part and the first abutting part, respectively.

[0007] Preferably, the base includes an interconnected support body and a connecting sleeve, and the first adjusting member is at least partially rotatably inserted into the connecting sleeve and fixed by a locking member.

[0008] Preferably, the support body is provided with casters at the bottom.

[0009] Preferably, the support body is a telescopic frame, which includes multiple first vertical rods and second vertical rods. The second vertical rods are movably sleeved with the first vertical rods. The multiple second vertical rods are connected to each other through a bottom connecting structure, and the multiple first vertical rods are connected to each other through a top connecting structure. The connecting sleeve is connected to the top connecting structure.

[0010] Preferably, the first abutting portion and the second abutting portion have arc-shaped abutting surfaces for abutting the pipe.

[0011] On the other hand, the present invention also provides a method of using an auxiliary tube end deformation correction device, comprising the following steps:

[0012] Move the auxiliary pipe end deformation correction device to the inside of the pipe end of the pipe to be corrected;

[0013] Rotate the first adjusting component and fix it so that the second abutting part is aligned with the recessed part of the pipe wall, and the first abutting part abuts against the corresponding position of the pipe wall;

[0014] Start the jacking part and control the second abutment part to push out the concave part of the pipe wall to correct it.

[0015] The advantages and positive effects of this invention are as follows: due to the adoption of the above technical solution, the first adjusting component can be rotated, adjusted and locked, so that the second abutting part can be aligned with the recess at any circumferential position inside the pipe, which has strong adaptability; the mechanical pushing method can reduce the damage to the pipe base material; it has the advantages of simple structure, low cost, and can improve the quality and efficiency of pipe welding. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a planar structure according to an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the elevation structure of one embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of an embodiment of the present invention at an angle inside a pipe;

[0019] Figure 4 This is a schematic diagram of an embodiment of the present invention from another angle inside the pipe;

[0020] Figure 5 This is a schematic diagram of the elevation structure of another embodiment of the present invention;

[0021] In the picture:

[0022] 1. First abutment pipe; 2. First connecting pipe; 3. Second adjusting component; 4. Connecting part; 5. Jack; 6. Second connecting pipe; 7. Second abutment pipe; 8. First adjusting component; 9. Connecting sleeve; 10. Column; 11. Bottom connecting structure; 12. Top connecting structure; 13. Moving wheel; 14. Channel steel; 15. Locking component; 101. First vertical rod; 102. Second vertical rod. Detailed Implementation

[0023] The embodiments of the present invention will now be described with reference to the accompanying drawings. The described embodiments are only some embodiments of the present invention, and not all embodiments.

[0024] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar units or units having the same or similar functions throughout.

[0025] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that terms such as "installation," "connection," and "fixing" should be interpreted broadly, and can refer to direct connection, installation, or fixing, or indirect connection, installation, or fixing. The present invention does not impose any limitations in this regard.

[0026] like Figures 1 to 5 As shown in the schematic diagram of an embodiment of the auxiliary tube end deformation correction device of the present invention, the device includes a first abutting part, a connecting part 4, a pushing part and a second abutting part. The pushing part is connected between the connecting part 4 and the second abutting part to adjust the distance between them. The connecting part 4 is connected to the first abutting part. The device also includes a first adjusting member 8 and a base. The first adjusting member 8 is connected to the connecting part 4 at an angle, and the first adjusting member 8 is rotatably connected to the base to adjust the circumferential position of the first abutting part and the second abutting part in the tube.

[0027] The first adjusting component 8 can be fixed to the base after rotation, and the position of the second abutment part can be adjusted along the circumferential direction inside the pipe, thus improving adaptability. The mechanical pushing method reduces damage to the pipe, reduces reliance on manual experience, and is easy to operate, which can reduce labor intensity and improve the efficiency and quality of pipe welding.

[0028] Preferably, a second adjusting member 3 is provided between the connecting part 4 and the first abutting part, and the second adjusting member 3 is movably connected to the connecting part 4 and / or the first abutting part. The distance between the first abutting part and the connecting part 4 can be adjusted by the second adjusting member 3, which facilitates the device entering and exiting the pipe and initially fitting the pipe wall.

[0029] Preferably, the two ends of the second adjusting member 3 are threadedly connected to the connecting part 4 and the first abutting part, respectively. Specifically, the second adjusting member 3 can be a screw, which has low manufacturing cost and can also achieve fine adjustment.

[0030] Preferably, the base includes a support body and a connecting sleeve 9 connected to each other. The first adjusting member 8 is at least partially rotatably inserted into the connecting sleeve 9 and fixed by the locking member 15. The support body can be disposed inside the tube, and together with the connecting sleeve 9 and the locking member 15, it facilitates the rotation and locking of the first adjusting member 8, providing good support and positioning for the first adjusting member 8.

[0031] Preferably, the bottom of the support body is provided with casters 13. Casters 13 facilitate the movement of the device and reduce labor intensity. Casters 13 are equipped with braking structures. It is understood that the specific model of casters 13 and their braking structures in this solution are conventional choices in the art and will not be described in detail here.

[0032] Preferably, the support body is a telescopic frame, which includes multiple first vertical rods 101 and second vertical rods 102. The second vertical rods 102 are movably sleeved with and can be fixed to the first vertical rods 101. The multiple second vertical rods 102 are connected to each other through a bottom connecting structure 11, and the multiple first vertical rods 101 are connected to each other through a top connecting structure 12. The connecting sleeve 9 is connected to the top connecting structure 12. The telescopic structure of the support body can improve the flexibility of fixing the height of the first adjusting member 8, increase the adjustment range of the distance between the connecting part 4 and the first abutting part, and improve the adaptability to different pipe diameters.

[0033] Preferably, the first and second abutting portions have arc-shaped abutting surfaces for abutting the pipe. The arc-shaped abutting surfaces can reduce damage to the inner wall of the pipe and improve processing quality.

[0034] On the other hand, the present invention also provides a method of using an auxiliary tube end deformation correction device, comprising the following steps:

[0035] Move the aforementioned auxiliary pipe end deformation correction device to the inside of the pipe end of the pipe to be corrected;

[0036] Rotate the first adjusting component 8 so that the second abutting part is aligned with the recess in the pipe wall;

[0037] The first adjusting member 8 is locked to the base by the locking member 15;

[0038] Adjust the distance between the connecting part 4 and the first abutting part so that the first abutting part is pressed tightly against the pipe wall;

[0039] Start the jacking section and control the second abutment section to push out the recessed part of the pipe wall;

[0040] After the correction is completed, retract the pusher and move the device out of the pipeline or to the designated location.

[0041] Example 1:

[0042] like Figures 1 to 4 As shown, the device includes a first abutting part, a connecting part 4, a pushing part, a second abutting part, a first adjusting member 8, a second adjusting member 3, and a base.

[0043] The first and second abutting parts preferably adopt a T-shaped structure.

[0044] The first abutting part includes a first abutting pipe 1 and a first connecting pipe 2 vertically connected to the first abutting pipe 1. The first abutting pipe 1 is made of circular steel pipe and is used to abut against the inner wall of the pipe. The first connecting pipe 2 is vertically welded to the middle of the first abutting pipe 1 and has a threaded structure for threaded connection with the second adjusting member 3. In this embodiment, a nut is welded to the end of the first connecting pipe 2 away from the first abutting pipe 1; in other embodiments, the first connecting pipe 2 may also be a sleeve with internal threads.

[0045] The second adjusting component 3 is an adjusting screw, whose two ends are threadedly connected to the first connecting pipe 2 and the connecting part 4, respectively.

[0046] The connecting part 4 is tubular. In this embodiment, a nut is welded to one end of the connecting part 4 near the second adjusting member 3. In other embodiments, the connecting part 4 may also be a sleeve with internal threads.

[0047] The second abutting part includes a second abutting pipe 7 and a second connecting pipe 6 vertically connected to the second abutting pipe 7. The second abutting pipe 7 is also made of round steel pipe and is used to abut the recessed part of the pipe wall. The second connecting pipe 6 is welded to the middle of the second abutting pipe 7. The end of the second connecting pipe 6 away from the second abutting pipe 7 is connected to the telescopic end (piston rod end) of the jack 5.

[0048] The contact surfaces of the first connecting pipe 1 and the second connecting pipe 7 are both arc surfaces that fit the pipe wall, reducing damage to the pipe during correction. The specific lengths of the first connecting pipe 2 and the second connecting pipe 6 can be selected according to the pipe diameter requirements.

[0049] The jacking part is a jack 5, whose cylinder end is connected to the connecting part 4, and whose telescopic end is detachably connected to the second connecting pipe 6 of the second abutment part. The specific connection methods between the jack 5, the connecting part 4, and the second abutment part are existing technologies and can be flexibly selected based on the general technical knowledge of those skilled in the art. For example, the cylinder end of the jack 5 may have a flange welded or integrally formed, and a corresponding flange may also be welded to the end of the connecting part 4 near the jack 5; the two flanges are fastened together with bolts. Alternatively, in different embodiments, a steel plate can be used as a transitional connecting part; steel plates are welded to the cylinder end of the jack 5 and the end of the connecting part 4 near the jack 5, and both steel plates have pre-drilled connection holes and are connected by bolts and nuts. The connection method between the telescopic end of the jack 5 and the second connecting pipe 6 of the second abutment part can also adopt existing connection methods such as the aforementioned connecting plate, which will not be elaborated upon in this invention.

[0050] The base includes an interconnected supporting body and a connecting sleeve 9. The supporting body is a frame constructed of steel pipes, which includes multiple columns 10. In this embodiment, there are four columns 10. The bottoms of the multiple columns 10 are connected by a bottom connecting structure 11 (e.g., a rectangular base plate). In this embodiment, the jack 5 is a hydraulic jack, and the base plate can also be used to house a hydraulic pump to supply fluid to the jack 5. The tops of the multiple columns 10 are connected by a top connecting structure 12 (e.g., a frame composed of crossbars or a top plate). The top connecting structure 12 is provided with multiple vertically arranged channel steels 14, which are respectively connected to both sides of the connecting sleeve 9.

[0051] The bottom of the base plate is equipped with multiple casters 13, and each caster 13 has a braking structure. It is understood that the specific models of the casters 13 and their braking structures in this solution are conventional choices in the field, and will not be described in detail here.

[0052] The connecting sleeve 9 can be horizontally welded to the top of the support body. The side wall of the connecting sleeve 9 is machined with threaded holes. Specifically, the threaded hole structure on the connecting sleeve 9 can be formed by pre-drilling smooth holes on the connecting sleeve 9 and then welding nuts, or by using other conventional machining methods. The machining method of the threaded hole structure is a commonly used technique in this field. The threaded holes are used to install locking bolts as locking components 15.

[0053] The first adjusting member 8 is a circular steel pipe, which is welded and fixed perpendicularly to the middle of the connecting part 4. The outer diameter of the first adjusting member 8 is smaller than the inner diameter of the connecting sleeve 9. The first adjusting member 8 can be rotatably inserted into the connecting sleeve 9 and locked by multiple locking members 15 (locking bolts). Preferably, the multiple locking members 15 cooperate to lock the first adjusting member 8, forming a clamping fixation. In addition, threaded hole structures can be machined at predetermined positions along the circumference on the steel pipe that serves as the first adjusting member 8. The specific machining method can refer to the aforementioned machining method of the threaded hole structure on the connecting sleeve 9, so that the locking members 15 can also form a threaded connection with the corresponding threaded hole structure in the circumferential direction of the connecting sleeve 9.

[0054] In this embodiment, a preset gap is left between the connecting sleeve 9 and the first adjusting member 8. This gap allows the first abutting part to finely adjust its distance from the pipe wall, so that it can move smoothly inside the pipe and reliably abut against the pipe wall as needed.

[0055] It is understood that the specific model of the jack 5 and its drive control method used in this solution are all existing mature technologies in the field, and will not be described in detail here. Those skilled in the art can select a suitable commercially available jack 5 model and its matching control method according to the actual load requirements and construction conditions, as long as the lifting function can be achieved. The specific selection and drive control logic do not constitute a limitation of this invention.

[0056] In one use case:

[0057] Based on the dimensions of the pipe to be corrected, select a first abutment part and a second abutment part of suitable size. Pre-adjust the initial distance between the connecting part 4 and the first abutment part by the second adjusting component 3, so that the device can be smoothly placed inside the pipe end at a preset position. The first abutment part and the second abutment part are close to but do not contact the pipe wall.

[0058] Rotate the first adjusting member 8 so that the second abutting pipe 7 of the second abutting part is aligned with the recess in the pipe wall, and fix the first adjusting member 8 by the cooperation of multiple locking members 15.

[0059] Rotate the second adjusting member 3 or the first abutting part to make the first abutting part press against the pipe wall on the opposite side of the recess.

[0060] Start the jacking part (jack 5), and its telescopic end moves to drive the second abutting pipe 7 of the second abutting part to push the recessed part outward.

[0061] After the correction is completed, butt welding is performed on the ends of the large-diameter pipe.

[0062] Control the retraction of jack 5 and adjust the first abutting pipe 1 of the first abutting part to detach from the pipe wall. Personnel will then push the device to the next working position or push it out of the pipeline.

[0063] This embodiment can reduce manual hammering and efficiently and evenly correct pipe wall depressions through mechanical pushing, reducing pipe damage; the first adjusting component 8 can be rotated and locked, so that the second abutment part can be aligned with any circumferential depression inside the pipe, which is highly adaptable; the base is equipped with moving wheels 13 for easy movement; the device has a simple structure and low cost.

[0064] Example 2:

[0065] like Figure 5 As shown, the main support structure is a telescopic frame. Each column 10 includes a first vertical rod 101 and a second vertical rod 102 that are slidably connected to each other. The two can be fixed by locking with a set screw or by using a through bolt with a nut. Multiple second vertical rods 102 are connected by a bottom connecting structure 11 (e.g., a base plate), and multiple first vertical rods 101 are connected by a top connecting structure 12 (e.g., a frame or top plate composed of crossbars).

[0066] When it is necessary to adapt to different pipe diameters, the height of the telescopic frame can be adjusted to change the ground clearance of the connecting sleeve 9, thereby increasing the adjustment range of the distance between the first connecting pipe 2 and the connecting part 4 of the first abutment part and improving the applicability of the device.

[0067] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. An auxiliary pipe end deformation correction device, comprising a first abutting part, a connecting part, a pushing part, and a second abutting part, wherein the pushing part is connected between the connecting part and the second abutting part to adjust the distance between them, and the connecting part is connected to the first abutting part, characterized in that, It also includes a first adjusting member and a base, the first adjusting member being angularly connected to the connecting part, and the first adjusting member being rotatably connected to the base to adjust the circumferential position of the first abutting part and the second abutting part within the tube.

2. The auxiliary tube end deformation correction device according to claim 1, characterized in that, A second adjusting member is provided between the connecting part and the first abutting part, and the second adjusting member is movably connected to the connecting part and / or the first abutting part.

3. The auxiliary tube end deformation correction device according to claim 2, characterized in that, The two ends of the second adjusting component are threadedly connected to the connecting part and the first abutting part, respectively.

4. The auxiliary tube end deformation correction device according to any one of claims 1-3, characterized in that, The base includes an interconnected support body and a connecting sleeve, wherein the first adjusting member is at least partially rotatably inserted into the connecting sleeve and fixed by a locking member.

5. The auxiliary tube end deformation correction device according to claim 4, characterized in that, The support body is equipped with casters at its bottom.

6. The auxiliary tube end deformation correction device according to claim 4, characterized in that, The supporting body is a telescopic frame, which includes multiple first vertical rods and second vertical rods. The second vertical rods are movably sleeved with the first vertical rods. The multiple second vertical rods are connected to each other through a bottom connecting structure, and the multiple first vertical rods are connected to each other through a top connecting structure. The connecting sleeve is connected to the top connecting structure.

7. The auxiliary tube end deformation correction device according to any one of claims 1-3, 5 and 6, characterized in that, The first abutting part and the second abutting part have arc-shaped abutting surfaces for abutting the pipe.

8. A method of using an auxiliary pipe end deformation correction device, comprising the auxiliary pipe end deformation correction device according to any one of claims 1-7, characterized in that, The usage steps include the following: Move the auxiliary pipe end deformation correction device to the inside of the pipe end of the pipe to be corrected; Rotate the first adjusting component and fix it so that the second abutting part is aligned with the recessed part of the pipe wall, and the first abutting part abuts against the corresponding position of the pipe wall; The pusher is activated, and the second abutment is controlled to push out the recessed part of the pipe wall to correct it.

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