CN111379901A - Pipeline butt-joint machine - Google Patents
Pipeline butt-joint machine Download PDFInfo
- Publication number
- CN111379901A CN111379901A CN202010294601.3A CN202010294601A CN111379901A CN 111379901 A CN111379901 A CN 111379901A CN 202010294601 A CN202010294601 A CN 202010294601A CN 111379901 A CN111379901 A CN 111379901A
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- Prior art keywords
- ring
- fixed
- semi
- pipeline
- fixing
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
- F16L1/10—Accessories therefor, e.g. anchors for aligning
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sewage (AREA)
Abstract
The invention discloses a pipeline butt-joint machine, which discloses an auxiliary device which is used for hanging and fixing a pipeline by matching a fixed semi-ring and a locking semi-ring, is convenient to disassemble and separate and is easy to recycle and store, it is characterized in that one end of four hydraulic support legs is arranged at the bottom of the fixed frame, the four hydraulic support legs are respectively arranged at four corners of the fixed frame, the other end of the hydraulic support leg is provided with a universal wheel, the universal wheel is provided with a locking plate, the fixing frame is provided with two through grooves, lead to the groove and be close to the both ends of mount respectively, two logical inslots are arranged in respectively to two screws, and on the screw rod was arranged in to the sliding block, two logical inslots were arranged in respectively to two sets of guide bars, and is a set of the guide bar comprises at least three guide bar, and is a set of interior three the guide bar is located the top that corresponds the screw rod, the guide bar runs through the sliding block, be provided with the sliding sleeve between guide bar and the sliding block.
Description
Technical Field
The invention discloses a pipeline butt-joint machine, relates to an installation auxiliary device for connecting and installing pipelines for hydraulic engineering, and belongs to the field of hydraulic engineering. In particular to an auxiliary device which is used for hanging and fixing a pipeline by matching a fixed semi-ring and a locking semi-ring, is convenient to detach and separate and is easy to recycle and store.
Background
When installing pipeline for hydraulic engineering, need connect the installation with the multistage pipeline, when installing one section pipeline and the well-installed pipe connection installation, often need the installer to use lifting device to hoist the pipeline by a take the altitude, a plurality of installers promote the body and carry out the regulation of angle and position, make the pipeline interface aim at, carry out connection work such as joint or welding again, because the pipeline section is longer great and need cooperate lifting device, adjust comparatively difficultly artificially, current auxiliary device often sets up the structure of mode of propping up, the pipeline is in device upper portion, need the pipeline and place and reserve sufficient space between the face in order to operate, if add the cushion or dig and establish and place the face etc. increased the construction volume of piping erection, the device is difficult to separate with the pipeline, retrieve after the use and deposit inconveniently.
Notice No. CN210123044U discloses a pipe laying auxiliary device for hydraulic engineering construction, comprising a base plate, accomodate the groove, a bearing, a rotating shaft, a spring, the connecting plate, the baffle, a supporting plate, the carriage, electronic hydraulic stem, the screw thread post, screw cap and riser, electronic hydraulic stem, place the pipeline and carry out level and height's regulation on the connecting plate when the device uses, because the pipeline is in device upper portion after the use, need the pipeline and place and reserve sufficient space in order to operate between the face, if add the cushion or dig and establish and place the face etc. increased piping erection's construction volume, the device is difficult for with the pipe-separating, retrieve after the use and deposit inconveniently.
Notice No. CN110608315A discloses pipe laying auxiliary device for hydraulic and hydroelectric engineering construction, the on-line screen storage device comprises a base, the movable plate, the left branch vaulting pole, the right branch vaulting pole, the left-hand shaft, the right side pivot, first threaded rod, the dead lever, preceding bracing piece, the movable block, two sets of first bolt, two sets of first nut, last semi-circular support and lower semi-circular support, the device uses the back because the pipeline is in device upper portion, need the pipeline and place and reserve sufficient space between the face in order to operate, if add the cushion or dig and establish and place the face etc. increased the construction volume of piping erection, the device is difficult for with the tube bank separation, retrieve after the use and deposit inconveniently.
Disclosure of Invention
In order to improve the situation, the invention provides an auxiliary device for a pipeline butt-joint machine, which is used for hanging and fixing a pipeline by matching a fixed half ring and a locking half ring, is convenient to disassemble and separate and is easy to recycle and store.
The invention discloses a pipeline butt-joint machine, which is realized by the following steps: the invention relates to a pipeline butt-joint machine which comprises a fixed frame, a sliding block, guide rods, hydraulic support legs, locking semi-rings, hydraulic rods, a motor, screws, a driving chain, a transmission chain, a fixed rod, fixed semi-rings, a fixed sleeve and universal wheels, wherein one end of each of the four hydraulic support legs is arranged at the bottom of the fixed frame, the four hydraulic support legs are respectively positioned at four corners of the fixed frame, the other end of each hydraulic support leg is provided with the universal wheel, the universal wheel is provided with a locking plate, the fixed frame is provided with two through grooves which are respectively close to two ends of the fixed frame, the two screws are respectively positioned in the two through grooves, the sliding block is sleeved on the screws, two groups of guide rods are respectively positioned in the two through grooves, one group of guide rods comprises at least three guide rods, the three guide rods in one group are positioned above the corresponding screws, the guide rods penetrate, the fixed ends of the two hydraulic rods are arranged at the bottom of the sliding block, the fixed semi-ring is fixedly arranged on the movable ends of the two hydraulic rods, the fixed semi-ring consists of a T-shaped block and an arc plate, a reinforcing rib is arranged between the T-shaped block and the arc plate, an insertion groove is arranged on the T-shaped block of the fixed semi-ring, one end of each fixing rod is fixedly arranged on the wall of the insertion groove, a locking semi-ring is arranged on the fixed semi-ring and consists of a fixing ring, the inner wall of the fixing ring is arranged on the anti-skid pad, the locking semi-ring consists of an L-shaped block and an arc plate, a reinforcing rib is arranged between the L-shaped block and the arc plate, the L-shaped block of the locking semi-ring corresponds to the insertion groove, a plurality of through holes are arranged at the positions of the L-shaped block corresponding to the fixing rods, the L, a rubber pad is arranged between the fixed rod and the through hole, the fixed sleeve is sleeved on the fixed rod, the two motors are arranged on the fixed frame and are respectively close to two ends of the screw rod, a driving chain wheel is sleeved on a motor shaft of each motor, a position avoiding groove is formed in the bottom of the fixed frame, driven chain wheels are arranged on groove walls on two sides of the position avoiding groove, the driving chain wheel is connected with the driven chain wheels through a driving chain, and the driven chain wheels are connected with the two screw rods through transmission chains;
furthermore, the universal wheels are replaced by rotating wheels, and the two rotating wheels on the same side are connected through a crawler.
Has the beneficial effects.
The pipeline installation auxiliary operation device comprises a fixed semi-ring and a locking semi-ring, wherein the fixed semi-ring and the locking semi-ring are arranged to suspend and fix a pipeline, and the construction amount is prevented from increasing during the pipeline installation auxiliary operation.
And after the device is used, the two semi-rings are separated from the pipeline to separate the whole device from the pipeline, so that the device is convenient to recycle and store.
And thirdly, the horizontal position and the height position of the pipeline fixed on the device are adjusted through the screw rod and the hydraulic rod, so that manual adjustment is avoided, and the pipeline is convenient to install.
Drawings
FIG. 1 is a perspective view of a pipe butt-jointing machine according to the present invention;
FIG. 2 is a schematic structural diagram of a pipe butt-jointing machine according to the present invention;
FIG. 3 is a schematic structural diagram of a pipe butt-jointing machine motor according to the present invention;
FIG. 4 is a schematic view of a fixing ring of the pipe butt-jointing machine according to the present invention;
FIG. 5 is a schematic view of a fixing rod of the pipe butt-jointing machine according to the present invention;
FIG. 6 is a perspective view of a sliding block of the pipe butt-jointing machine according to the present invention;
fig. 7 is a schematic structural diagram of an embodiment 2 of the pipe butt-jointing machine of the present invention.
In the attached drawings
Wherein the method comprises the following steps: the device comprises a fixed frame (1), a sliding block (2), a guide rod (3), a hydraulic support leg (4), a locking semi-ring (5), a hydraulic rod (6), a motor (7), a screw rod (8), a driving chain (9), a transmission chain (10), a fixed rod (11), a fixed semi-ring (12), a fixed sleeve (13), a rotating wheel (14), a crawler belt (15) and a universal wheel (16).
The specific implementation mode is as follows:
example 1
The invention discloses a pipeline butt-joint machine, which is realized by the following steps: the invention relates to a pipeline butt-joint machine which comprises a fixed frame (1), a sliding block (2), a guide rod (3), hydraulic support legs (4), a locking semi-ring (5), a hydraulic rod (6), a motor (7), a screw rod (8), a driving chain (9), a transmission chain (10), a fixed rod (11), a fixed semi-ring (12), a fixed sleeve (13) and a universal wheel (16), wherein one ends of the four hydraulic support legs (4) are arranged at the bottom of the fixed frame (1), the four hydraulic support legs (4) are respectively positioned at four corners of the fixed frame (1), the other ends of the hydraulic support legs (4) are provided with the universal wheel (16), the universal wheel (16) is provided with a locking plate, the fixed frame (1) is provided with two through grooves which are respectively close to two ends of the fixed frame (1), the two screw rods (8) are respectively arranged in the two through grooves, the sliding block (2) is arranged, two groups of guide rods (3) are respectively arranged in the two through grooves, one group of guide rods (3) is composed of at least three guide rods (3), three guide rods (3) in one group are positioned above the corresponding screw rods (8), the guide rods (3) penetrate through the sliding blocks (2), a sliding sleeve is arranged between the guide rods (3) and the sliding blocks (2), the fixed ends of the two hydraulic rods (6) are arranged at the bottom of the sliding blocks (2), the fixed semi-ring (12) is fixedly arranged on the movable ends of the two hydraulic rods (6), the fixed semi-ring (12) is composed of a T-shaped block and an arc-shaped plate, reinforcing ribs are arranged between the T-shaped block and the arc-shaped plate, the T-shaped block of the fixed semi-ring (12) is provided with an inserting groove, one end of a plurality of fixed rods (11) is fixedly arranged on the wall of the inserting groove, and the locking semi-ring (5) is arranged on the, the locking semi-ring (5) and the fixed semi-ring (12) form a fixed ring, the inner wall of the fixed ring is arranged in the non-slip mat, the locking semi-ring (5) comprises an L-shaped block and an arc plate, a reinforcing rib is arranged between the L-shaped block and the arc plate, the L-shaped block of the locking semi-ring (5) corresponds to the insertion groove, a plurality of through holes are arranged at the position of the L-shaped block corresponding to the fixed rod (11), the L-shaped block is inserted in the insertion groove, the fixed rods (11) correspondingly penetrate through the through holes one by one, a rubber pad is arranged between the fixed rod (11) and the through holes, a fixed sleeve (13) is sleeved on the fixed rod (11), two motors (7) are arranged on the fixed frame (1) and are respectively close to two ends of the screw rod (8), a driving chain wheel is sleeved on a motor (7) shaft of the motor (7), a position avoiding groove is, driven chain wheels are arranged on the two side groove walls of the avoiding groove, the driving chain wheel is connected with the driven chain wheel through a driving chain (9), and the driven chain wheel is connected with the two screw rods (8) through a transmission chain (10);
when the device is used, a person firstly pushes the device to move to the position of a pipeline, the pipeline to be installed is fixed on a fixing ring formed by a locking semi-ring (5) and a fixing semi-ring (12), the fixing sleeve (13) is screwed to be fixed, then the device and the pipeline are moved to the position to be installed, a motor (7) is started, a shaft of the motor (7) rotates to drive a driving chain wheel to rotate, then a driving chain (9) drives a driven chain wheel to drive, a driving chain (10) drives a screw rod (8) to rotate, so that a sliding block (2) slides along the screw rod (8) to further drive the fixing ring to move along the screw rod (8), the horizontal position of the pipeline is adjusted, then the person adjusts the height of the fixing ring through a hydraulic rod (6), and further adjusts the vertical position of the pipeline, so that the pipeline to be installed is aligned with the installed pipeline, the horizontal position and the height position can be adjusted, manual adjustment is avoided, and the pipeline is convenient to install;
after the pipeline is installed, a person unscrews the fixing sleeve (13) to enable the fixing half ring (12) and the locking half ring (5) to be loosened, so that the pipeline and the device are separated, and the device is convenient to recycle and store.
Example 2
The difference between this example and example 1 is: the universal wheels (16) are replaced by rotating wheels (14), and the two rotating wheels (14) on the same side are connected through a crawler belt (15); when in use, the original universal wheels (16) are changed into the caterpillar track (15) type wheels, so that the mobile vehicle is convenient to use under the condition of poor ground conditions during moving and is convenient to move;
the universal wheel (16) is designed with a locking plate, so that the universal wheel (16) can be locked when not required to be moved, and the assembly is prevented from being influenced by the running of the universal wheel;
a sliding sleeve is arranged between the guide rod (3) and the sliding block (2), so that the sliding ring can conveniently slide along the guide rod (3);
reinforcing ribs are arranged between the T-shaped block and the arc-shaped plate, and the reinforcing ribs are arranged between the L-shaped block and the arc-shaped plate, so that the structures of the fixed semi-ring (12) and the locking semi-ring (5) are more stable;
the rubber pad is arranged between the fixed rod (11) and the perforation, and the rubber pad has elasticity, so that the fixed rod and the inner wall of the perforation are mutually pressed, and the connection is stable;
the inner wall of the fixing ring is arranged on the anti-skid pad, so that the friction force between the fixing ring and the pipeline is increased, and the fixing ring and the pipeline are stably connected;
the locking semi-ring (5) and the fixing semi-ring (12) are matched, so that the pipeline can be clamped, and the locking semi-ring and the fixing semi-ring can be disassembled, so that the pipeline and the device are separated, the device is convenient to recover and store, and the operation construction amount is reduced;
the screw (8) and the hydraulic rod (6) are matched, so that the horizontal position and the vertical position of the fixing ring can be adjusted, manual adjustment is avoided, and the pipeline is convenient to install;
the pipeline is fixed on a fixing ring consisting of the locking semi-ring (5) and the fixing semi-ring (12), then the fixing sleeve (13) is screwed, and the fixing semi-ring (12) and the locking semi-ring (5) are fixed or loosened by screwing the fixing sleeve (13), so that the pipeline and the device can be conveniently separated, and the device can be conveniently recycled and stored;
the motor (7) is started, the hydraulic rod (6) works, the sliding block (2) can slide through the motor (7) to adjust the horizontal position of the pipeline, the hydraulic rod (6) stretches to adjust the vertical position of the pipeline, manual adjustment is avoided, and the pipeline is convenient to mount;
the pipeline is hung and fixed through the matching of the fixed half ring (12) and the locking half ring (5), and the purposes of convenient detachment and separation, easy recovery and storage are achieved.
The above embodiments are preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that changes may be made without departing from the scope of the invention, and it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.
It should be further noted that, while the above specific embodiments are described for simplicity and clarity, only the differences from other embodiments are described, but those skilled in the art should understand that the above specific embodiments are independent technical solutions.
Claims (9)
1. A pipeline butt-joint machine is characterized in that: one end of each of four hydraulic support legs is arranged at the bottom of the fixing frame, the four hydraulic support legs are respectively positioned at four corners of the fixing frame, the other end of each hydraulic support leg is provided with a universal wheel, the fixing frame is provided with two through grooves which are respectively close to two ends of the fixing frame, two screw rods are respectively arranged in the two through grooves, a sliding block is arranged on the screw rods in a sleeved mode, two groups of guide rods are respectively arranged in the two through grooves, one group of guide rods consists of at least three guide rods, three guide rods in one group are positioned above the corresponding screw rods, the guide rods penetrate through the sliding block, fixed ends of the two hydraulic rods are arranged at the bottom of the sliding block, a fixed half ring is fixedly arranged on the movable ends of the two hydraulic rods and consists of a T-shaped block and an arc-shaped plate, the T-shaped block of the fixed half ring is, the locking semi-ring is arranged on the fixed semi-ring, the locking semi-ring and the fixed semi-ring form a fixed ring, the fixed ring one-to-one penetrates through a plurality of through holes, a rubber pad is arranged between the fixed ring and the through holes, the fixed sleeve is arranged on the fixed ring, two motors are arranged on the fixed frame and are respectively close to two ends of the screw rod, a driving sprocket is sleeved on a motor shaft of the motor, a position avoiding groove is formed in the bottom of the fixed frame, driven sprockets are arranged on two side groove walls of the position avoiding groove, the driving sprocket and the driven sprocket are connected through a driving chain, and the driven sprocket and the two screw rods are.
2. A pipe butt-jointing machine as claimed in claim 1, wherein said universal wheels are replaced by rotating wheels, and two of said rotating wheels on the same side are connected by a crawler.
3. The pipe butt-jointing machine according to claim 1, wherein a sliding sleeve is provided between the guide bar and the sliding block to facilitate sliding movement of the sliding ring along the guide bar.
4. The pipe butt-jointing machine of claim 1, wherein the locking half ring comprises an L-shaped block and an arc plate, a reinforcing rib is arranged between the L-shaped block and the arc plate, the L-shaped block of the locking half ring corresponds to the insertion groove, a plurality of through holes are formed in the L-shaped block corresponding to the fixing rod, and the L-shaped block is inserted into the insertion groove.
5. The pipe butt-jointing machine of claim 1, wherein a reinforcing rib is arranged between the T-shaped block and the arc-shaped plate.
6. The pipe butt-jointing machine according to claim 1, wherein the inner wall of the fixing ring is disposed on a non-slip mat.
7. The pipe butt-jointing machine according to claim 4, wherein the locking half ring and the fixing half ring are cooperatively designed to clamp the pipe and to be detachable from each other, so that the pipe and the device can be separated from each other, and the device can be conveniently recycled and stored.
8. The pipe butt-jointing machine according to claim 1, wherein a locking plate is disposed at the universal wheel.
9. The pipe butt-jointing machine according to claim 1, wherein the screw and the hydraulic rod are cooperatively designed to adjust the horizontal position and the vertical position of the fixing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010294601.3A CN111379901A (en) | 2020-04-15 | 2020-04-15 | Pipeline butt-joint machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010294601.3A CN111379901A (en) | 2020-04-15 | 2020-04-15 | Pipeline butt-joint machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111379901A true CN111379901A (en) | 2020-07-07 |
Family
ID=71217437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010294601.3A Pending CN111379901A (en) | 2020-04-15 | 2020-04-15 | Pipeline butt-joint machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111379901A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111664296A (en) * | 2020-07-13 | 2020-09-15 | 许吉界 | Method for paving and butt-jointing petroleum liquefied gas pipeline |
| CN111828730A (en) * | 2020-07-09 | 2020-10-27 | 中冶南方城市建设工程技术有限公司 | Construction process for installing inner sleeve steel pipe in jacking pipe |
| RU213497U1 (en) * | 2022-07-01 | 2022-09-14 | Общество с ограниченной ответственностью "Газпром трансгаз Томск" (ООО "Газпром трансгаз Томск") | Device for repair work on an underground pipeline |
| CN116857435A (en) * | 2023-07-14 | 2023-10-10 | 奥德集团有限公司 | Auxiliary positioning device for installing gas pipeline |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB391359A (en) * | 1932-08-26 | 1933-04-27 | James Thomas Mitchell Johnston | Improvements in apparatus for laying pipes in sections |
| US20150075722A1 (en) * | 2013-09-17 | 2015-03-19 | Mcelroy Manufacturing, Inc. | Top-Loading Straddle-Mounted Pipe Fusion Machine |
| CN105084218A (en) * | 2014-05-09 | 2015-11-25 | 中国石油天然气集团公司 | Pipeline construction straddle carrier and straddling method |
| CN207226854U (en) * | 2017-04-25 | 2018-04-13 | 中山市劦力重型起重机械有限公司 | A kind of tubing special purpose crane |
| CN108128697A (en) * | 2017-12-28 | 2018-06-08 | 天津赛文海工科技有限公司 | A kind of petroleum pipeline attachment device |
| CN208883341U (en) * | 2018-08-31 | 2019-05-21 | 云南省建设投资控股集团有限公司 | Underground pipe gallery large-diameter pipeline transport device |
| CN209442511U (en) * | 2019-01-23 | 2019-09-27 | 内蒙古东昊建设集团有限公司 | A kind of concrete pipe rapid-assembling/disassembling equipment |
-
2020
- 2020-04-15 CN CN202010294601.3A patent/CN111379901A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB391359A (en) * | 1932-08-26 | 1933-04-27 | James Thomas Mitchell Johnston | Improvements in apparatus for laying pipes in sections |
| US20150075722A1 (en) * | 2013-09-17 | 2015-03-19 | Mcelroy Manufacturing, Inc. | Top-Loading Straddle-Mounted Pipe Fusion Machine |
| CN105084218A (en) * | 2014-05-09 | 2015-11-25 | 中国石油天然气集团公司 | Pipeline construction straddle carrier and straddling method |
| CN207226854U (en) * | 2017-04-25 | 2018-04-13 | 中山市劦力重型起重机械有限公司 | A kind of tubing special purpose crane |
| CN108128697A (en) * | 2017-12-28 | 2018-06-08 | 天津赛文海工科技有限公司 | A kind of petroleum pipeline attachment device |
| CN208883341U (en) * | 2018-08-31 | 2019-05-21 | 云南省建设投资控股集团有限公司 | Underground pipe gallery large-diameter pipeline transport device |
| CN209442511U (en) * | 2019-01-23 | 2019-09-27 | 内蒙古东昊建设集团有限公司 | A kind of concrete pipe rapid-assembling/disassembling equipment |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828730A (en) * | 2020-07-09 | 2020-10-27 | 中冶南方城市建设工程技术有限公司 | Construction process for installing inner sleeve steel pipe in jacking pipe |
| CN111828730B (en) * | 2020-07-09 | 2021-11-09 | 中冶南方城市建设工程技术有限公司 | Construction process for installing inner sleeve steel pipe in jacking pipe |
| CN111664296A (en) * | 2020-07-13 | 2020-09-15 | 许吉界 | Method for paving and butt-jointing petroleum liquefied gas pipeline |
| CN111664296B (en) * | 2020-07-13 | 2021-12-07 | 潮州市欧华能源有限公司 | Method for paving and butt-jointing petroleum liquefied gas pipeline |
| RU213497U1 (en) * | 2022-07-01 | 2022-09-14 | Общество с ограниченной ответственностью "Газпром трансгаз Томск" (ООО "Газпром трансгаз Томск") | Device for repair work on an underground pipeline |
| CN116857435A (en) * | 2023-07-14 | 2023-10-10 | 奥德集团有限公司 | Auxiliary positioning device for installing gas pipeline |
| CN116857435B (en) * | 2023-07-14 | 2024-01-26 | 奥德集团有限公司 | Auxiliary positioning device for installing gas pipeline |
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