CN111660054A - Large pipe butt-joint positioner - Google Patents
Large pipe butt-joint positioner Download PDFInfo
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- CN111660054A CN111660054A CN202010540618.2A CN202010540618A CN111660054A CN 111660054 A CN111660054 A CN 111660054A CN 202010540618 A CN202010540618 A CN 202010540618A CN 111660054 A CN111660054 A CN 111660054A
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- 210000001503 joint Anatomy 0.000 claims abstract description 18
- 210000000078 claw Anatomy 0.000 claims description 45
- 230000000712 assembly Effects 0.000 claims description 24
- 238000000429 assembly Methods 0.000 claims description 24
- 238000003032 molecular docking Methods 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 11
- 238000010276 construction Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0533—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor external pipe alignment clamps
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention aims to provide a large pipe body butt joint positioner which is convenient for butt joint positioning of large-diameter pipelines and is convenient to carry, transport and assemble.
Description
Technical Field
The invention relates to the fields of mechanical engineering, chemical engineering and the like, in particular to a butt joint positioner for a large pipe body.
Background
In the petrochemical industry, a large amount of pipeline processes are needed to convey raw materials or control chemical reactions, for example, a large amount of pipelines and pipe welding operations exist in production lines in a chemical plant, and ultra-long-distance large-diameter pipeline conveying is also needed in petroleum transportation and natural gas remote conveying. During the welding and installation process of the large-diameter pipeline, the problem to be solved is the butt joint positioning problem.
The existing large-diameter pipeline butt-joint device is large in size, poor in flexibility, large in dismounting workload and insufficient in adaptability to pipeline butt-joint operation, and is inconvenient to transport and use particularly when a pipeline is laid in the field. Therefore, it is necessary to develop a novel butt joint positioning device which can adapt to the welding and installation operation of large pipelines or tanks, so as to solve the problem of inconvenient use and transportation.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a butt joint positioner for a large pipe body, which is convenient for butt joint positioning of large-diameter pipelines and is convenient to carry, transport and assemble, and the butt joint positioner specifically adopts the following technical scheme:
a large pipe body butt joint positioner comprises a plurality of magnetic claw assemblies, locking rods and driving rods, wherein the magnetic claw assemblies are integrally distributed in an annular shape, two adjacent magnetic claw assemblies are connected through the driving rods, the magnetic claw assemblies are sequentially connected into an annular shape in an up-and-down staggered mode, the two magnetic claw assemblies connected with the other ends of the two driving rods of the same magnetic claw assembly are connected together through the locking rods,
the magnetic claw assemblies comprise a central framework, magnet modules and universal connectors, the magnet modules are connected with the central framework through the universal connectors, each magnetic claw assembly comprises a central framework and a plurality of magnet modules, each universal connector is composed of a steering sleeve, a connecting plate, a positioning screw and a connector, the connecting plates are fixed with the magnet modules through the screws, the steering sleeves are matched with the connecting plates through cylindrical pairs to form hinge joints, namely the steering sleeves can rotate relative to the connecting plates, the positioning screws can realize the relative rotation positioning between the steering sleeves and the connecting plates, one end of each connector is connected with the central framework, and the other end of each connector is hinged with the steering sleeve through the cylindrical pair which transversely penetrates through the steering sleeves, so that the steering sleeves can swing relative to the central framework;
each magnetic jaw assembly preferably comprises four magnet modules;
each magnetic claw assembly is connected with two driving rods through two universal connectors respectively, a connecting plate of each universal connector is fixedly connected with the central framework through a screw, and one end of each connector, which is far away from the steering sleeve, is connected with the driving rod;
the magnetic module adopts a strong magnetic magnet, such as the strong magnetic magnet applied to the permanent magnet jack, the magnetic path of the strong magnetic module can be switched on or off through a magnetic switch so as to control the on and off of the strong magnetic force,
magnet module links together through universal connector with central skeleton, and is concrete, universal connector's connecting plate is connected with the magnet module, and universal connector's connector afterbody inserts the connector mounting hole formation hinged joint on the central skeleton, makes the connector can rotate central skeleton relatively, and the rear end of connector mounting hole is equipped with the space that holds set nut, set nut prevents that the connector from droing with connector location installation in the connector mounting hole. The magnet module realizes the rotation of the magnet module relative to three degrees of freedom of the central framework through the rotation of the steering sleeve, the hinging of the steering sleeve and the connector and the hinging of the connector and the central framework, so that the magnetic claw can flexibly adapt to the geometric surface of the pipe wall to form adaptive adjustment and is in fixed contact with the pipe wall more closely.
The locking rod and the driving rod are respectively composed of a screw rod, a sleeve rod and a tail rod, external threads are arranged outside the screw rod, the sleeve rod is hollow and is provided with internal threads, the screw rod can be screwed and extended or shortened in the sleeve rod, the tail rod is arranged at one end of the sleeve rod, which is far away from the screw rod, and the tail rod is hinged with the sleeve rod to enable the sleeve rod to freely rotate relative to the tail rod; the screw rod of check lock pole and the tip of tail-bar set up the round pin, through selling articulated together with central skeleton, the screw rod of actuating lever and the tip fixed connection nut of tail-bar are in the same place through the threaded rod fixed connection of nut and universal connector's connector.
When the mouth aligning operation is carried out:
firstly, the strong magnetic force of the magnet module is turned off through the switch, and the sleeve rod of the locking rod is screwed to increase the length of the locking rod so as to drive the inner diameter of an annular structure formed by a plurality of magnetic claw assemblies to be larger than the outer diameter of a pipeline to be butted.
Then, two sections of pipelines to be welded respectively extend into two polygonal locking rings of the butt joint positioner (a plurality of magnetic claw assemblies are distributed on two planes perpendicular to the annular central axis, the magnetic claw assemblies in each plane are connected into a polygon through a locking rod), the length of the driving rod is adaptively adjusted to adjust the fixed position of the magnetic claw assemblies on the wall surface of the pipeline, then sleeve rods of the locking rods in the polygonal locking ring structures are screwed to reduce the length of the sleeve rods, so that the inner diameter of each polygonal structure is reduced until the magnet modules are pressed on the outer wall of the pipeline, and the strong magnet magnetic force of the magnet modules is started through a switch, so that the magnet modules are adsorbed on the outer wall of the pipeline and are fixedly connected with the pipeline. Finally, the relative position of the front and the rear polygonal locking ring structures can be controlled by screwing the sleeve rod of the driving rod to adjust the length of the driving rod. The butt joint positioning is realized by continuously adjusting the relative positions of the end parts of the two pipelines in a parallel driving mode.
The invention has the advantages that:
(1) the equipment is assembled by independent modules, so that the equipment can adapt to butt joint operation of pipelines with different radiuses by adjusting the number of the modules, and a single module after being disassembled has small volume, is convenient to carry and transport, and adapts to rapid construction of field construction equipment in lack of environment;
(2) the magnetic claw assembly is firstly installed, the driving rod and the locking rod are installed after the magnetic claw assembly is adsorbed on the pipe wall, the installation can be realized in a working environment with a narrow space, and the use is convenient;
(3) because the shape of the polygonal locking ring is adjustable, the pipe with any cross section shape can be butted from the inside or the outside theoretically, and the application range is wide;
(4) the magnet module has three degrees of freedom rotation relative to the central framework of the magnetic claw assembly, so that the magnetic claw assembly can flexibly adapt to the geometric shape of the pipe wall to form adaptation adjustment, and is in closer fixed contact with the pipe wall. Under the condition of larger load, the magnet module has a tendency of overturning relative to the pipe wall, the radius of the polygonal locking ring is increased when the magnet module overturns, and the radius of the polygonal locking ring is restrained by the locking rod, so that larger positive pressure is generated between the overturning magnetic claw assembly and the pipe wall under the tendency, so that the static friction force is increased, a self-locking effect is formed, and the magnetic claw assembly is prevented from slipping;
(5) the structure of the invention can be properly adjusted according to the size of the load, and the invention can flexibly adapt to various working conditions, such as only magnetic positioning and no adoption of the clasping mode of the polygonal locking ring.
Drawings
FIG. 1 is a first schematic diagram of the connection relationship of the docking locator of the present invention;
FIG. 2 is a second schematic diagram of the connection relationship of the docking locator of the present invention;
FIG. 3 is a schematic view of the magnetic jaw assembly of the present invention;
FIG. 4 is a schematic view of the construction of the universal connector of the present invention;
FIG. 5 is an exploded view of the universal connector configuration of the present invention;
FIG. 6 is a schematic view of the construction of the central skeleton according to the present invention;
FIG. 7 is a schematic view of the locking lever of the present invention;
FIG. 8 is a schematic view of the drive rod configuration of the present invention;
FIG. 9 is a first schematic view of the docking fixture in use;
FIG. 10 is a second schematic view of the docking fixture in use;
in the figure: 1. the magnetic claw assembly comprises a driving rod, 2, a magnetic claw assembly, 3, a universal connector, 4, a locking rod, 5, a central framework, 6, a magnet module, 7, a connecting plate, 8, a steering sleeve, 9, a positioning screw, 10, a connector, 11, a connector mounting hole, 12, a positioning nut, 13, a switch, 14, a screw rod, 15, a sleeve rod, 16 and a tail rod.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the disclosure herein.
Referring to the drawings, the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present disclosure can be implemented, so that the present disclosure has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the disclosure of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure. Meanwhile, the positional limitation terms used in the present specification are for clarity of description only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship therebetween may be regarded as the scope of the present invention without substantial changes in the technical content.
As shown in the drawings, fig. 1 is a first schematic diagram of the connection relationship of the docking locator of the present invention, and fig. 2 is a second schematic diagram of the connection relationship of the docking locator of the present invention; the large pipe body butt joint positioner comprises a plurality of magnetic claw assemblies 2, locking rods 4 and driving rods 1, wherein the magnetic claw assemblies 2 are integrally distributed in an annular shape, two adjacent magnetic claw assemblies 2 are connected through the driving rods 1, the magnetic claw assemblies 2 are sequentially connected in an annular shape in an up-down staggered mode, the two magnetic claw assemblies 2 connected to the other ends of the two driving rods 1 of the same magnetic claw assembly 2 are connected together through the locking rods 4, namely, the magnetic claw assemblies 2 are distributed on two planes perpendicular to the annular central axis, and the magnetic claw assemblies 2 in each plane are connected into a polygon through the locking rods 4.
Fig. 3 is a schematic structural diagram of a magnetic claw assembly according to the present invention, as shown in the figure, the magnetic claw assembly includes a central frame 5, a magnet module 6, and a universal connector 3, the magnet module 6 and the central frame 5 are connected together by the universal connector 3, each magnetic claw assembly 2 includes a central frame 5 and a plurality of magnet modules 6, this embodiment shows a schematic structural diagram when four magnet modules are installed, and accordingly, the number of the magnet modules 6 may be one, two, or three.
Fig. 4 shows a schematic diagram of the structure of the universal connector of the present invention, fig. 5 shows an exploded schematic diagram of the structure of the universal connector of the present invention, as shown in the figure, the universal connector 3 is composed of a steering sleeve 8, a connecting plate 7, a set screw 9 and a connector 10, the connecting plate 7 is fixed with a magnet module 6 by a screw, the magnet module 6 adopts a strong magnetic magnet, such as a strong magnetic magnet applied to a permanent magnet jack, the magnetic path of which can be switched on or off by a magnetic switch 13, thereby controlling the on and off of the strong magnetic force; turn to sleeve 8 and form articulatedly through the cylinder is vice with the cooperation of connecting plate 7, promptly turn to sleeve 8 for connecting plate 7 can rotate relatively, and is concrete, 7 upper surface central points of connecting plate put and are provided with tubular structure, set up the internal thread in the tubular structure, turn to 8 covers of sleeve and establish tubular structure is outside to can rotate relatively around tubular structure, set screw 9 screw-thread fit installs tubular structure's inside prevents to rotate sleeve 8 and deviate from, set screw 9 realizes turning to the location that can rotate relatively between sleeve 8 and the connecting plate 7, 10 one end of connector is connected with central skeleton 5, the other end is vice through crossing the cylinder that turns to sleeve 8 and turns to sleeve 8 articulated, makes to turn to sleeve 8 and realize the swing motion with central skeleton 5 relatively.
Each magnetic claw assembly 2 is connected with two driving rods 1 through two universal connectors 3 respectively, wherein a connecting plate 7 of each universal connector 3 is fixedly connected with a central framework 5 through screws, and one end, far away from a steering sleeve 8, of each connector is connected with the driving rods 1.
As shown in fig. 6, the structural diagram of the central skeleton according to the present invention is that four hinge frames and four connector mounting holes 11 are uniformly distributed on the side surface in the circumferential direction, the hinge frames and the connector mounting holes 11 are sequentially arranged at intervals, a rod body with an external thread at the tail of a connector 10 of the universal connector 3 is inserted into the connector mounting hole 11 on the central skeleton 5 to form a hinge connection, so that the connector 10 can rotate relative to the central skeleton 5 in the connector mounting hole 11, a gap for accommodating a positioning nut 12 is arranged at the rear end of the connector mounting hole 11, the positioning nut 12 is matched with the external thread at the tail of the connector 10, the connector 10 is positioned and mounted in the connector mounting hole 11, and the connector 10 is prevented from falling off.
Fig. 7 is a schematic structural diagram of a locking rod of the present invention, fig. 8 is a schematic structural diagram of a driving rod of the present invention, as shown in the drawings, the locking rod 4 and the driving rod 1 are composed of a screw 14, a sleeve rod 15 and a tail rod 16, the screw 14 is externally provided with external threads, the sleeve rod 15 is hollow and is provided with internal threads, the screw 14 can be screwed inside the sleeve rod 15 to extend or shorten the total length, the tail rod 16 is arranged at one end of the sleeve rod 15 far away from the screw, and the tail rod 16 is hinged with the sleeve rod 15 so that the sleeve rod 15 can freely rotate relative to the tail rod 16; as shown in fig. 7, the end portions of the screw 14 and the tail rod 16 of the locking rod 4 far from the loop bar 15 are respectively provided with a pin and hinged with the central framework 5 through the pin, as shown in fig. 8, the end portions of the screw and the tail rod of the driving rod 1 far from the loop bar are respectively fixedly connected with a nut, and the nut is fixedly connected with a rod body with external threads at the tail part of the connector 10 of the universal connector.
Fig. 9 is a schematic view showing a first usage state of the docking locator of the present invention, and fig. 10 is a schematic view showing a second usage state of the docking locator of the present invention, as shown in the drawings, when the docking locator of the present invention performs a docking operation, firstly, the switch 13 turns off the strong magnetic force of the magnet module 6, and the sleeve rod of the locking rod 4 is screwed, so that the length of the locking rod 4 is increased to drive the inner diameter of the annular structure formed by the plurality of magnetic claw assemblies 2 to increase to be larger than the outer diameter of the pipe to be docked; then, two sections of pipelines to be welded respectively extend into two polygonal locking rings of the butt joint positioner, the length of the driving rod is adjusted adaptively to adjust the fixed position of the magnetic claw assembly on the wall surface of the pipeline, then the loop bars of the locking rods in the polygonal locking ring structures are screwed to reduce the length of the loop bars, so that the inner diameter of each polygonal structure is reduced until the magnet modules are pressed on the outer wall of the pipeline, and the strong magnet magnetic force of the magnet modules is started through a switch to enable the magnet modules to be adsorbed on the outer wall of the pipeline and fixedly connected with the pipeline. Finally, the relative position of the front and the rear polygonal locking ring structures can be controlled by screwing the sleeve rod of the driving rod to adjust the length of the driving rod. The butt joint positioning is realized by continuously adjusting the relative positions of the end parts of the two pipelines in a parallel driving mode.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A large pipe body butt joint positioner is characterized by comprising a plurality of magnetic claw assemblies, locking rods and driving rods, wherein the magnetic claw assemblies are integrally distributed in an annular shape, two adjacent magnetic claw assemblies are connected through the driving rods, the magnetic claw assemblies are sequentially connected in an up-and-down staggered mode into an annular shape, the two magnetic claw assemblies connected with the other ends of the two driving rods of the same magnetic claw assembly are connected together through the locking rods,
the magnetic claw assemblies comprise a central framework, magnet modules and universal connectors, the magnet modules are connected with the central framework through the universal connectors, each magnetic claw assembly comprises a central framework and a plurality of magnet modules, each universal connector is composed of a steering sleeve, a connecting plate, a positioning screw and a connector, the connecting plates are fixed with the magnet modules through the screws, the steering sleeve is matched with the connecting plates through a cylindrical pair to form hinge joint, the positioning screws realize the relative rotating positioning between the steering sleeve and the connecting plates, one end of each connector is connected with the central framework, and the other end of each connector is hinged with the steering sleeve through the cylindrical pair which transversely penetrates through the steering sleeve, so that the steering sleeve can realize swinging motion relative to the central framework;
each magnetic claw assembly is connected with two driving rods through two universal connectors respectively, wherein a connecting plate of each universal connector is fixedly connected with the central framework through screws, and one end, far away from the steering sleeve, of each connector is connected with the driving rods.
2. A large pipe body docking positioner according to claim 1, further comprising four magnet modules in each magnetic jaw assembly.
3. The large pipe body butting positioner according to claim 1, wherein the magnet module is a strong magnetic magnet, and a magnetic path of the strong magnetic magnet can be switched on or off through a magnetic switch, so that the strong magnetic switch is controlled to be switched on or switched off.
4. The large pipe body butting positioner according to any one of claims 1 to 3, further characterized in that four hinge frames and four connector mounting holes are uniformly arranged on the side surface of the central framework in the circumferential direction, the hinge frames and the connector mounting holes are sequentially arranged at intervals, a gap for accommodating a positioning nut is arranged at the rear end of each connector mounting hole, and the positioning nut is matched with the external thread at the tail of the connector to position and mount the connector in the connector mounting hole.
5. The large pipe butt positioner according to claim 4, wherein the locking rod comprises a screw, a sleeve rod and a tail rod, external threads are arranged outside the screw, the sleeve rod is hollow and is provided with internal threads, the screw can be screwed to extend or shorten in the inner threads of the sleeve rod, the tail rod is arranged at one end of the sleeve rod, which is far away from the screw, and the tail rod is hinged to the sleeve rod so that the sleeve rod can freely rotate relative to the tail rod; and pins are arranged at the ends of the screw rod of the locking rod and the tail rod and are hinged with the central framework through the pins.
6. The large pipe body butt joint positioner according to claim 4, wherein the driving rod is composed of a screw rod, a sleeve rod and a tail rod, external threads are arranged outside the screw rod, the sleeve rod is hollow and is provided with internal threads, the screw rod can be screwed to extend or shorten in the sleeve rod, the tail rod is arranged at one end of the sleeve rod, which is far away from the screw rod, and the tail rod is hinged with the sleeve rod so that the sleeve rod can freely rotate relative to the tail rod; the screw thread of the driving rod and the end part of the tail rod are fixedly connected with a nut and fixedly connected with a threaded rod of a connector of the universal connector through the nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010540618.2A CN111660054B (en) | 2020-06-16 | 2020-06-16 | Large pipe butt-joint positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010540618.2A CN111660054B (en) | 2020-06-16 | 2020-06-16 | Large pipe butt-joint positioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111660054A true CN111660054A (en) | 2020-09-15 |
| CN111660054B CN111660054B (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010540618.2A Active CN111660054B (en) | 2020-06-16 | 2020-06-16 | Large pipe butt-joint positioner |
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| CN (1) | CN111660054B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2405696Y (en) * | 2000-01-18 | 2000-11-15 | 上海宝钢冶金建设公司 | Underground cutting device for steel-tube pile |
| US20030137092A1 (en) * | 2002-01-23 | 2003-07-24 | Jerry Melanson | Pipe aligning device |
| KR101473448B1 (en) * | 2014-05-22 | 2014-12-19 | 케이엔디이주식회사 | A detection device for welding flaw region inside of pipe having sensing quantity of ferrite |
| CN204735907U (en) * | 2015-06-08 | 2015-11-04 | 洛阳德平科技股份有限公司 | Centralizer in hydraulic pressure |
| CN105598631A (en) * | 2016-03-25 | 2016-05-25 | 上海普睿玛智能科技有限公司 | Rhombic internal support clamp for round pipe welding |
| CN206140061U (en) * | 2016-08-31 | 2017-05-03 | 中冶宝钢技术服务有限公司 | A adjusting device for tube coupling is assembled |
| CN206732418U (en) * | 2017-06-01 | 2017-12-12 | 三峡大学 | Surface filling automatic welding machine |
| CN108100080A (en) * | 2017-12-30 | 2018-06-01 | 黄继成 | A kind of full landform riding type mountainous region working rig |
-
2020
- 2020-06-16 CN CN202010540618.2A patent/CN111660054B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2405696Y (en) * | 2000-01-18 | 2000-11-15 | 上海宝钢冶金建设公司 | Underground cutting device for steel-tube pile |
| US20030137092A1 (en) * | 2002-01-23 | 2003-07-24 | Jerry Melanson | Pipe aligning device |
| KR101473448B1 (en) * | 2014-05-22 | 2014-12-19 | 케이엔디이주식회사 | A detection device for welding flaw region inside of pipe having sensing quantity of ferrite |
| CN204735907U (en) * | 2015-06-08 | 2015-11-04 | 洛阳德平科技股份有限公司 | Centralizer in hydraulic pressure |
| CN105598631A (en) * | 2016-03-25 | 2016-05-25 | 上海普睿玛智能科技有限公司 | Rhombic internal support clamp for round pipe welding |
| CN206140061U (en) * | 2016-08-31 | 2017-05-03 | 中冶宝钢技术服务有限公司 | A adjusting device for tube coupling is assembled |
| CN206732418U (en) * | 2017-06-01 | 2017-12-12 | 三峡大学 | Surface filling automatic welding machine |
| CN108100080A (en) * | 2017-12-30 | 2018-06-01 | 黄继成 | A kind of full landform riding type mountainous region working rig |
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| Publication number | Publication date |
|---|---|
| CN111660054B (en) | 2021-12-10 |
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Inventor after: Sun Linan Inventor after: Jiao Biaobiao Inventor before: Jiao Biaobiao |
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Address after: 518000 Qianhai Road, Liwan community, Nanshan street, Nanshan District, Shenzhen, Guangdong Applicant after: Jiao Biaobiao Address before: 300354 new campus of Tianjin University, 135 Yaguan Road, Jinnan District, Tianjin Applicant before: Jiao Biaobiao |
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Effective date of registration: 20240126 Address after: 408000 No.1 Baitao Petrochemical Avenue, Fuling District, Chongqing Patentee after: Chongqing Sinopec Tonghui Energy Co.,Ltd. Country or region after: China Address before: 518000 Qianhai Road, Liwan community, Nanshan street, Nanshan District, Shenzhen, Guangdong Patentee before: Jiao Biaobiao Country or region before: China |
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