CN108458201B - Quick plugging device is pressed in pipeline area - Google Patents
Quick plugging device is pressed in pipeline area Download PDFInfo
- Publication number
- CN108458201B CN108458201B CN201810344963.1A CN201810344963A CN108458201B CN 108458201 B CN108458201 B CN 108458201B CN 201810344963 A CN201810344963 A CN 201810344963A CN 108458201 B CN108458201 B CN 108458201B
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- China
- Prior art keywords
- steel wire
- wire rope
- locker
- pressing block
- plugging
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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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/17—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose
- F16L55/172—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose the ring, band or sleeve being tightened by a tangentially arranged threaded pin and a nut
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Ropes Or Cables (AREA)
Abstract
The invention relates to a pipeline pressurized quick plugging device, which mainly solves the problems of large leakage of conveying materials caused by sand holes, cracks and the like generated by ageing of pipelines. The technical scheme of the invention is as follows: the quick plugging device comprises a locking mechanism, a steel wire rope, a plugging pressing block and a pipeline; the steel wire rope is sleeved in an annular tension balance groove at one end of a locker sliding rail in the locking mechanism after being folded in half, two rope ends of the steel wire rope penetrate through rope holes of the plugging pressing blocks and encircle a pipeline, penetrate through locker rope holes of the steel wire rope locker in the locking mechanism, and are embedded into a steel wire rope pressing groove of the steel wire rope pressing block in the locking mechanism after being pre-stretched. The invention has the advantages of quick plugging, saving cost, no need of stopping production, low cost, temporary treatment, permanent plugging measures and the like.
Description
Technical Field
The invention relates to a pipeline pressurized quick plugging device which is used for water supply, water drainage, compressed air, oil transportation, gas transportation and leakage caused by sand holes and cracks of various pipelines for transmitting all fluids.
Background
In the industrial production operation process, pipelines are required to be used for conveying fluid and gas in all places. Pipes are used in various industries such as mine water supply, drainage, air pressure, nitrogen and grouting, and petroleum, chemical industry, etc. to transport different substances.
Because the pipeline is pressed for a long time and is used in various complex environments such as humidity, harmful substance corrosion and the like, the pipeline is aged, sand holes, cracks and the like can often appear, so that a large amount of conveyed substances leak, if the pipeline is stopped from being treated at the moment, a series of normal production problems are likely to be influenced, the influence range is larger, and certain economic loss is caused.
Disclosure of Invention
The invention aims to solve the existing problems and provides a pipeline pressure quick plugging device capable of quickly plugging sand holes, cracks and the like caused by pipeline aging.
In order to solve the technical problems, the invention adopts the following technical scheme: the quick plugging device comprises a locking mechanism, a steel wire rope, a plugging pressing block and a pipeline; the steel wire rope is folded in half and sleeved in a ring-shaped tension balance groove at one end of a locker sliding rail in the locking mechanism, two rope ends of the steel wire rope penetrate through a rope hole of the plugging pressing block and encircle a pipeline, then penetrate through a locker rope hole of the steel wire rope locker in the locking mechanism, and are embedded into a steel wire rope pressing groove of the steel wire rope pressing block in the locking mechanism after being pre-stretched;
the locking mechanism comprises a pre-tightening bolt, a steel wire rope locker, a tongue plate, an elastic hollow expansion pin, a steel wire rope pressing block, a locker sliding rail, a locking screw rod, a plugging pressing block, a high-elastic rubber pad and a hand crank; the steel wire rope locker is arranged on a rail of the locker sliding rail and is positioned at the left end of the rail, a lock nut is arranged at the other end of the rail of the locker sliding rail, an annular groove is formed in one end of the trapezoid locking screw rod, the annular groove is embedded into the steel wire rope pressing block, is positioned by an elastic hollow expansion pin, and is connected into a whole through a jack of the elastic hollow expansion pin arranged on the steel wire rope pressing block to synchronously move; the locking screw is connected with the locking nut, the other end of the locking screw is provided with a screw square head, and the sleeve of the hand crank is sleeved on the screw square head; an annular tension balance groove is formed in one end face of the locker sliding rail positioned on the side edge of the locking nut;
the two sides of the steel wire rope pressing block are provided with longitudinal steel wire rope pressing grooves, one end of the steel wire rope pressing block, which is positioned at the center of the steel wire rope pressing block, is provided with a hole matched with the locking screw rod and an inserting hole of the elastic hollow expansion pin, the other end of the steel wire rope pressing block, which is positioned at the center of the steel wire rope pressing block, is provided with an inner screw hole concentric with the steel wire rope locker, and is used for pre-tightening by a pre-tightening bolt after being adjusted, and a positioning groove is formed above the steel wire rope pressing block and is matched with a tongue plate of the steel wire rope locker, so that the steel wire rope pressing block and the steel wire rope pressing block are tightly attached to each other, and do not deviate in the pushing process;
the steel wire rope locker is provided with an inner opening groove matched with the locker sliding rail, and rides on the locker sliding rail to move back and forth, a round hole of a pre-tightening bolt is arranged at the center of the steel wire rope locker, and the round hole is connected with a steel wire rope pressing block through the pre-tightening bolt; the two sides of the steel wire rope locker are provided with locker rope holes through which the steel wire rope can pass, and the lower parts of the locker rope holes are provided with guide grooves of the steel wire rope to prevent the steel wire rope from shifting and falling off;
two parallel plugging pressing block rope holes are formed in the bottom of the plugging pressing block and used for a steel wire rope to pass through, a rectangular counter bore is formed in the upper surface of the plugging pressing block, and a high-elastic rubber pad is embedded in the rectangular counter bore, so that a pressurized plugging effect is achieved on a pipeline leakage point.
In a further preferred mode, the locker sliding rail in the locking mechanism is of a T-shaped structure and is a special rail of the steel wire rope locker.
Further preferably, the locking screw is a trapezoidal locking screw.
The invention provides a pipeline pressured quick plugging device, which is used for quickly plugging a leakage point by using a plugging pressing block, a steel wire rope and a set of locking mechanisms, can be suitable for various pipelines with different diameters, can realize pressured quick plugging, and reduces leakage loss of substances. The quick plugging device is simple in structure and quick to operate, can be used for quickly plugging under pressure under the condition of no production stopping after being adjusted and ready by simple preparation work, and can be used for quickly plugging a leakage point within 5 seconds, so that the effects of not affecting normal fluid conveying and reducing loss are achieved. Compared with the prior art, the invention has the advantages of quick plugging, saving cost, no need of stopping production, low cost, temporary treatment, permanent plugging measures and the like.
Drawings
FIG. 1 is a three-sided schematic view of a locking mechanism of a pressurized quick plugging device for a pipeline;
FIG. 2 is a schematic view of three sides of a plugging block according to the present invention;
FIG. 3 is a schematic view of three sides of a wire rope locker in a pipe pressurized quick plugging device according to the present invention;
FIG. 4 is a schematic view of an upper structure of a wire rope press block in a pressurized quick plugging device for a pipeline according to the present invention;
FIG. 5 is a schematic view of three sides of a slide rail and a tension balancing groove in a pressurized quick plugging device for a pipeline according to the present invention;
FIG. 6 is a schematic diagram of a locking screw in a pressurized quick plugging device for a pipeline according to the present invention;
FIG. 7 is a schematic view of a handle structure of the quick locking device of the present invention;
FIG. 8 is a schematic diagram showing the state of pretensioning the locking wire rope according to the present invention;
FIG. 9 is a diagram showing the state of locking the plugging pressing block according to the present invention.
In the figure: 1. the hydraulic locking device comprises a pre-tightening bolt, 2 parts of a steel wire rope locker, 3 parts of a tongue plate, 4 parts of an elastic hollow expansion pin, 5 parts of a steel wire rope pressing block, 6 parts of a locking nut, 7 parts of a locker sliding rail, 8 parts of an annular tension balance groove, 9 parts of a locking screw rod, 10 parts of a locker rope hole, 11 parts of a guide groove, 12 parts of a screw rod square head, 13 parts of a plugging pressing block, 14 parts of a high-elastic rubber gasket, 15 parts of a plugging pressing block rope hole, 16 parts of a pre-tightening bolt, 17 parts of a steel wire rope pressing groove, 18 parts of a positioning groove, 19 parts of an inner screw hole, 20 parts of an elastic hollow expansion pin jack, 21 parts of an annular groove, 22 parts of a hand crank, 23 parts of a steel wire rope and 24 parts of a pipeline
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 7, the quick plugging device with pressure for a pipeline according to the embodiment comprises a locking mechanism, a steel wire rope 23, a plugging pressing block 13 and a pipeline 24; the steel wire rope 23 is folded in half and sleeved in the annular tension balance groove 8 at one end of the locker slide rail 7 in the locking mechanism, two rope ends of the steel wire rope 23 penetrate through the rope hole of the plugging pressing block 13 and encircle the pipeline 24, then penetrate through the locker rope hole 10 of the steel wire rope locker 2 in the locking mechanism, and are embedded into the steel wire rope pressing groove 17 of the steel wire rope pressing block 5 in the locking mechanism after being pre-stretched;
the locking mechanism comprises a pre-tightening bolt, a steel wire rope locker 2, a tongue plate 3, an elastic hollow expansion pin 4, a steel wire rope press block 5, a locker slide rail 7, a locking screw 9, a plugging press block 13, a high-elastic rubber pad 14 and a hand crank 22; the steel wire rope locker 2 is arranged on a rail of the locker sliding rail 7 and is positioned at the left end of the rail, a locking nut 6 is arranged at the other end of the rail of the locker sliding rail 7, and the locker sliding rail 7 in the locking mechanism is of a T-shaped structure and is a special rail of the steel wire rope locker 2. An annular groove 21 is formed in one end of the trapezoid locking screw 9, the annular groove 21 is embedded into the steel wire rope pressing block 5, is positioned by the elastic hollow expansion pin 4, and is connected into a whole through a jack 20 of the elastic hollow expansion pin arranged on the steel wire rope pressing block 5 to synchronously move; the locking screw rod 9 is connected with the locking nut 6, the other end of the locking screw rod 9 is provided with a screw rod square head 12, and a sleeve of the hand crank 22 is sleeved on the screw rod square head 12; an annular tension balance groove 8 is formed in one end face of a locker sliding rail 7 positioned on the side edge of the locking nut 6;
the two sides of the steel wire rope pressing block 5 are provided with longitudinal steel wire rope pressing grooves 17, one end of the steel wire rope pressing block 5 positioned at the center is provided with a hole matched with the locking screw rod 9 and an inserting hole 20 of the elastic hollow expansion pin 4, the other end of the steel wire rope pressing block 5 positioned at the center is provided with an inner screw hole 19 concentric with the steel wire rope locker 2, the steel wire rope pressing block is used for pre-tightening by a pre-tightening bolt after being well adjusted to form a steel wire rope 23, and a positioning groove 18 is formed above the steel wire rope pressing block, the positioning groove 18 is matched with the tongue plate 3 of the steel wire rope locker 2 to ensure that the steel wire rope pressing block and the steel wire rope pressing block are tightly attached, and the steel wire rope pressing block does not deviate in the pushing process;
the steel wire rope locker 2 is provided with an inner opening groove matched with the locker sliding rail 7, and rides on the locker sliding rail 7 to move back and forth, a round hole 16 of a pre-tightening bolt is arranged at the center of the steel wire rope locker 2, and the steel wire rope locker 2 is connected with the steel wire rope pressing block 5 through the pre-tightening bolt; the two sides of the steel wire rope locker 2 are provided with locker rope holes 10 through which the steel wire rope can pass, and the lower part of the locker rope holes 10 is provided with guide grooves 11 for the steel wire rope to prevent the steel wire rope from shifting and falling off;
two parallel plugging pressing block rope holes 15 are formed in the bottom of the plugging pressing block 13 and used for a steel wire rope 23 to pass through, a rectangular counter bore is formed in the upper surface of the plugging pressing block 13, and a high-elastic rubber pad 14 is embedded in the rectangular counter bore, so that a pressurized plugging effect is achieved on a pipeline leakage point.
The locker sliding rail 7 in the locking mechanism of the embodiment of the invention is designed into a T shape, is a special rail of the steel wire rope locker 2, one end of the rail is provided with a locking nut 6, is a base point of a screw 9 for pushing the steel wire rope pressing block 5, and a corresponding annular tension balancing groove 8 is arranged below the base point and is mainly used for balancing the tension of the steel wire rope 23. The trapezoidal screw 9 matched with the lock nut 6 can bear larger unidirectional pressure, an annular groove 21 is designed at one end of the trapezoidal screw 9 and embedded into the steel wire rope pressing block 5 for connecting and matching, the elastic hollow expansion pin 4 is used for positioning, the connection is guaranteed to be integrated and synchronously moved, the square screw head 12 at the other end is matched with the hand crank 22, and the screw 9 can be rapidly rotated.
The two sides of the steel wire rope pressing block 5 are provided with longitudinal steel wire rope pressing grooves 16, one end of the center position is provided with a hole matched with the locking screw rod 9, the other end of the center position is provided with an inserting hole 20 of the elastic hollow expansion pin 4, the other end of the center position is provided with an inner screw hole 19 concentric with the steel wire rope locker, the center position is used for pre-tightening by the pre-tightening screw 1 after the steel wire rope 23 is adjusted, and meanwhile, a positioning groove 18 is formed above the center position and is matched with the tongue plate 3 of the steel wire rope locker 2, so that the center position and the middle position are tightly attached to each other, and the center position is not deviated in the pushing process.
The wire rope locker 2 is provided with an inner opening groove matched with the sliding rail 7, and rides on the sliding rail 7 to move back and forth, a round hole 16 of a pre-tightening bolt is arranged in the center position, and the wire rope locker can penetrate the pre-tightening bolt 1 and is connected with the wire rope pressing block 5. The two sides of the rope are provided with a locker rope hole 10 through which the steel rope can pass, and a guide groove 11 of a steel rope 23 is arranged below the locker rope hole 10 to prevent the steel rope from shifting and falling off.
As shown in fig. 8 and 9, after the steel wire rope 23 is folded in half at the initial stage of preparation, the steel wire rope 23 is sleeved in the annular tension balance groove 8 at one end of the locker slide rail 7, two rope ends encircle the pipeline 24 and simultaneously pass through the rope hole of the plugging pressing block 13, then pass through the rope hole of the steel wire rope locker 2, and are embedded into the steel wire rope pressing groove 17 of the steel wire rope pressing block 5 after being pre-stretched, so that the steel wire rope locker 2 and the steel wire rope pressing block 5 can be pre-tightened by the pre-tightening bolt 1, and the two rope ends are pre-tightened and locked after the steel wire rope 23 is mainly bent at two right angles, so that the steel wire rope 23 can not float.
And then the position of the plugging pressing block 13 is adjusted to correspond to the leakage point, finally, the sleeve of the handle crank 22 is sleeved on the screw rod square head 12 to rotate rapidly, the pressure generated in the process that the screw rod 9 advances the steel wire rope pressing block 5 can further compress and start stretching the steel wire rope head part, and finally, the plugging pressing block 13 and the pipeline leakage point are compressed and sealed to prevent leakage. In the pushing and tensioning process, the annular tension balance groove 8 at the tail end of the locker slide rail 7 plays a role in balancing the tension of the steel wire ropes 23 at two sides so as to ensure the tension to be consistent. The hand crank 22 is quickly rotated after initial readiness, and the steel wire rope 23 is tensioned and locked in a short time, so that the purpose of quick plugging is achieved.
Claims (1)
1. The quick plugging device with pressure for the pipeline is characterized by comprising a locking mechanism, a steel wire rope (23), a plugging pressing block (13) and a pipeline (24); the steel wire rope (23) is sleeved in an annular tension balance groove (8) at one end of a locker sliding rail (7) in the locking mechanism after being folded in half, two rope ends of the steel wire rope (23) penetrate through rope holes of a plugging pressing block (13) and encircle a pipeline (24), penetrate through locker rope holes (10) of a steel wire rope locker (2) in the locking mechanism, and are embedded into a steel wire rope pressing groove (17) of a steel wire rope pressing block (5) in the locking mechanism after being pre-stretched;
the locking mechanism comprises a pre-tightening bolt (1), a steel wire rope locker (2), a tongue plate (3), an elastic hollow expansion pin (4), a steel wire rope pressing block (5), a locker sliding rail (7), a locking screw (9), a leakage blocking pressing block (13), a high-elastic rubber pad (14) and a hand crank (22); the steel wire rope locker (2) is arranged on a rail of the locker sliding rail (7) and is positioned at the left end of the rail, a locking nut (6) is arranged at the other end of the rail of the locker sliding rail (7), an annular groove (21) is formed in one end of the locking screw (9), the annular groove (21) is embedded into the steel wire rope pressing block (5), is positioned by the elastic hollow expansion pin (4) and is connected into a whole through a jack (20) of the elastic hollow expansion pin arranged on the steel wire rope pressing block (5) to synchronously move; the locking screw (9) is connected with the locking nut (6), the other end of the locking screw (9) is provided with a screw square head (12), and a sleeve of the hand crank (22) is sleeved on the screw square head (12); an annular tension balancing groove (8) is formed in one end face of a locker sliding rail (7) positioned at the side edge of the locking nut (6);
the two sides of the steel wire rope pressing block (5) are provided with longitudinal steel wire rope pressing grooves (17), one end of the steel wire rope pressing block (5) positioned at the center is provided with a hole matched with the locking screw rod (9) and an inserting hole (20) matched with the elastic hollow expansion pin (4), the other end of the steel wire rope pressing block (5) positioned at the center is provided with an inner screw hole (19) concentric with the steel wire rope locker (2), the steel wire rope pressing block is used for pre-tightening by the pre-tightening bolt (1) after being used for adjusting the steel wire rope (23), and a positioning groove (18) is formed above the steel wire rope pressing block, and the positioning groove (18) is matched with the tongue plate (3) of the steel wire rope locker (2) to ensure that the steel wire rope pressing block and the steel wire rope pressing block are tightly attached to each other, and do not deviate in the pushing process;
an inner opening groove matched with the locker sliding rail (7) is formed in the steel wire rope locker (2), the steel wire rope locker rides on the locker sliding rail (7) to move back and forth, a round hole (16) of a pre-tightening bolt is formed in the center of the steel wire rope locker (2), and the steel wire rope locker is connected with an inner screw hole (19) of the steel wire rope pressing block (5) through the pre-tightening bolt (1); the two sides of the steel wire rope locker (2) are provided with locker rope holes (10) through which the steel wire rope can pass, and guide grooves (11) of the steel wire rope are arranged below the locker rope holes (10) to prevent the steel wire rope from shifting and falling off;
two parallel plugging pressing block rope holes (15) are formed in the bottom of the plugging pressing block (13) and used for a steel wire rope (23) to pass through, a rectangular counter bore is formed in the upper surface of the plugging pressing block (13) and embedded into a high-elastic rubber pad (14), and a pressurized plugging effect is achieved on a pipeline leakage point; the locker sliding rail (7) in the locking mechanism is of a T-shaped structure and is a special rail of the steel wire rope locker (2); the locking screw (9) is a trapezoid locking screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810344963.1A CN108458201B (en) | 2018-04-17 | 2018-04-17 | Quick plugging device is pressed in pipeline area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810344963.1A CN108458201B (en) | 2018-04-17 | 2018-04-17 | Quick plugging device is pressed in pipeline area |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108458201A CN108458201A (en) | 2018-08-28 |
| CN108458201B true CN108458201B (en) | 2023-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810344963.1A Active CN108458201B (en) | 2018-04-17 | 2018-04-17 | Quick plugging device is pressed in pipeline area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108458201B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209340722U (en) * | 2018-12-29 | 2019-09-03 | 天津安固密封技术有限公司 | A kind of novel closure equipment |
| CN113944823A (en) * | 2021-10-21 | 2022-01-18 | 贵州浅层地温能开发有限公司 | Ground source heat pump buried pipeline plugging device |
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| GB411472A (en) * | 1932-12-06 | 1934-06-06 | James Rayney Leach Allott | Improvements in leak-sealing devices |
| GB1286435A (en) * | 1971-06-18 | 1972-08-23 | Cues Inc | Packer for sealing pipe leaks |
| US4513788A (en) * | 1983-11-28 | 1985-04-30 | Koppl Company Inc. | Flange system for pipeline plugging |
| FR2782367A1 (en) * | 1998-08-12 | 2000-02-18 | 3X Engineering | Pipe leak stopper comprises elastomer plate with plastic force applicator slitted to follow pipe surface |
| CN2444105Y (en) * | 2000-11-08 | 2001-08-22 | 居焕兴 | Leaking stoppage device for slot by binding press |
| CN2921531Y (en) * | 2006-03-17 | 2007-07-11 | 中国石油化工股份有限公司中原油田分公司采油三厂 | Fast pressed pipe menders |
| DE202014102750U1 (en) * | 2014-06-13 | 2014-08-27 | Funke Kunststoffe Gmbh | Kit for rehabilitation of a pipe connection |
| CN204239973U (en) * | 2014-11-12 | 2015-04-01 | 冯继伟 | A kind of pipeline with pressure leak stopping fix tool |
| CN204284782U (en) * | 2014-09-30 | 2015-04-22 | 宝钢不锈钢有限公司 | Bolt type random scale formula Combined joint |
| CN204284788U (en) * | 2014-12-08 | 2015-04-22 | 河北钢铁股份有限公司承德分公司 | Chain pipe plugging fixture |
| CN105114756A (en) * | 2015-09-01 | 2015-12-02 | 公安部上海消防研究所 | Sliding binding type pressure emergency leakage stoppage device |
| CN206572142U (en) * | 2017-03-03 | 2017-10-20 | 辽河石油勘探局 | Oil-gas pipeline tape-pressure leakage clogging device |
-
2018
- 2018-04-17 CN CN201810344963.1A patent/CN108458201B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB411472A (en) * | 1932-12-06 | 1934-06-06 | James Rayney Leach Allott | Improvements in leak-sealing devices |
| GB1286435A (en) * | 1971-06-18 | 1972-08-23 | Cues Inc | Packer for sealing pipe leaks |
| US4513788A (en) * | 1983-11-28 | 1985-04-30 | Koppl Company Inc. | Flange system for pipeline plugging |
| FR2782367A1 (en) * | 1998-08-12 | 2000-02-18 | 3X Engineering | Pipe leak stopper comprises elastomer plate with plastic force applicator slitted to follow pipe surface |
| CN2444105Y (en) * | 2000-11-08 | 2001-08-22 | 居焕兴 | Leaking stoppage device for slot by binding press |
| CN2921531Y (en) * | 2006-03-17 | 2007-07-11 | 中国石油化工股份有限公司中原油田分公司采油三厂 | Fast pressed pipe menders |
| DE202014102750U1 (en) * | 2014-06-13 | 2014-08-27 | Funke Kunststoffe Gmbh | Kit for rehabilitation of a pipe connection |
| CN204284782U (en) * | 2014-09-30 | 2015-04-22 | 宝钢不锈钢有限公司 | Bolt type random scale formula Combined joint |
| CN204239973U (en) * | 2014-11-12 | 2015-04-01 | 冯继伟 | A kind of pipeline with pressure leak stopping fix tool |
| CN204284788U (en) * | 2014-12-08 | 2015-04-22 | 河北钢铁股份有限公司承德分公司 | Chain pipe plugging fixture |
| CN105114756A (en) * | 2015-09-01 | 2015-12-02 | 公安部上海消防研究所 | Sliding binding type pressure emergency leakage stoppage device |
| CN206572142U (en) * | 2017-03-03 | 2017-10-20 | 辽河石油勘探局 | Oil-gas pipeline tape-pressure leakage clogging device |
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| Publication number | Publication date |
|---|---|
| CN108458201A (en) | 2018-08-28 |
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