CN110030458B - Local repair device for drainage pipeline - Google Patents
Local repair device for drainage pipeline Download PDFInfo
- Publication number
- CN110030458B CN110030458B CN201910352690.XA CN201910352690A CN110030458B CN 110030458 B CN110030458 B CN 110030458B CN 201910352690 A CN201910352690 A CN 201910352690A CN 110030458 B CN110030458 B CN 110030458B
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- arc
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- body supporting
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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
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
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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
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/28—Constructional aspects
- F16L55/30—Constructional aspects of the propulsion means, e.g. towed by cables
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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
- F16L2101/00—Uses or applications of pigs or moles
- F16L2101/10—Treating the inside of pipes
- F16L2101/12—Cleaning
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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
- F16L2101/00—Uses or applications of pigs or moles
- F16L2101/60—Stopping leaks
Abstract
The invention discloses a local repair device for a drainage pipeline, which comprises a main body supporting cylinder, wherein a notch is formed on the main body supporting cylinder; a main part supporting cylinder is of a double-layer structure, a sliding cavity is formed inside the main part supporting cylinder, an arc cleaning plate is arranged in the sliding cavity in a sliding mode, an arc through groove communicated with the sliding cavity is formed in the inner side face of the main part supporting cylinder, an arc sliding strip is arranged on one face, close to the arc through groove, of the arc cleaning plate, a driving gear is further rotatably arranged on the supporting shaft, and at least part of the driving gear penetrates through the arc through groove and is meshed with the arc sliding strip. The problem of traditional atmospheric pressure or water pressure be difficult to control, gasbag, water pocket are fragile, and foreign matter such as incrustation scale that gathers in the pipeline can interfere the forming of materials such as resin and easily drop after the shaping is solved.
Description
Technical Field
The invention relates to the field of pipeline repair, in particular to a local repair device for a drainage pipeline.
Background
The pipeline repairing means that various technologies are adopted to restore the damaged and leaked conveying pipelines to normal use functions, and the repairing comprises outer anticorrosive layer repairing and inner repairing; wherein, the internal repair technique degree of difficulty is great, and the common hose upset method inside lining technique that has: after the fiber hose with the anti-seepage film is fully impregnated with resin, the fiber hose is turned over and clings to the inner wall of an old pipeline by adopting air pressure or water pressure, and a smooth lining glass steel pipe is formed after molding, so that the old pipeline is repaired; when the air pressure or the water pressure is utilized, firstly, the pressure is not well controlled, secondly, the air bag and the water bag are damaged due to overlarge pressure, secondly, foreign matters such as scales are easily accumulated in the pipeline after the pipeline is used for a long time, the foreign matters can interfere the dry-solid forming of hot resin, and the filling materials such as the formed resin are easy to fall off again.
Disclosure of Invention
The invention aims to provide a local repair device for a drainage pipeline, which solves the problems that the traditional air pressure or water pressure is not easy to control, an air bag and a water bag are easy to damage, and foreign matters such as scale accumulated in the pipeline can interfere the forming of filling materials such as resin and the like and can easily fall off after the forming.
In order to achieve the purpose, the invention provides a local repair device for a drainage pipeline, which comprises a main body supporting cylinder, wherein a gap is formed in the main body supporting cylinder along the length direction of the main body supporting cylinder; the main part supports a section of thick bamboo and is bilayer structure, and inside is formed with smooth chamber, be close to in the main part supports a section of thick bamboo two long limit ends of breach form with the opening that smooth chamber is linked together, be provided with arc clearance board in the smooth intracavity slidable, the medial surface that the main part supported a section of thick bamboo be provided with the arc that smooth chamber is linked together leads to the groove, be close to in the arc clearance board the one side that the arc led to the groove is provided with the arc draw runner, still rotationally be provided with drive gear on the back shaft, drive gear at least part runs through the arc lead to the groove and with the arc draw runner meshes mutually, makes drive gear can drive the arc clearance board is in smooth intracavity surround motion can make it certainly the one end opening of main part support a section of thick bamboo slides to.
Preferably, the supporting shaft is further fixed with a supporting frame located inside the main body supporting cylinder, the supporting frame is fixed with a motor, a first belt wheel is coaxially fixed on a rotating head of the motor, the supporting frame is further rotatably provided with the driving gear, a second belt wheel is coaxially fixed on the end face of the driving gear, and the first belt wheel is connected with the second belt wheel through a belt.
Preferably, a cleaning brush is fixed to an arc surface, far away from the arc through groove, of the arc cleaning plate.
Preferably, the motor is a bidirectional rotary motor.
Preferably, the telescopic rod mechanism comprises a sleeve fixed on the supporting shaft, a telescopic rod and a fixed head device; sleeve pipe one end is fixed on the back shaft, and the other end terminal surface is inwards sunken to be formed with the spout, telescopic link one end slidable ground is located in the spout, and the other end is fixed with fixed head device, sheathed tube side be provided with a plurality of with the screw hole that the spout is linked together, the wrench joint has locking screw on the screw hole, rotatory locking screw can with the telescopic link is at least partly fastened in the spout.
Preferably, the fixed head device comprises an arc-shaped abutting plate fixed on the telescopic rod, two ends of the arc-shaped abutting plate extend outwards to form a fastening part, and the fastening part is connected with the inner side surface of the main body supporting cylinder through a bolt component.
Preferably, the number of the telescopic rod mechanisms is not less than 2 groups.
Preferably, the pressure plate is of an arc-shaped structure.
Preferably, a stop block is further fixed in the sliding cavity.
According to the technical scheme, the local repair device for the drainage pipeline comprises a main body supporting cylinder, wherein a gap is formed in the main body supporting cylinder along the length direction of the main body supporting cylinder, a supporting shaft is coaxially arranged in the main body supporting cylinder, the supporting shaft is connected with the inner surface of the main body supporting cylinder through a plurality of telescopic rod mechanisms, and two ends of the supporting shaft are respectively connected with a pressing plate through cylinders, so that the pressing plate can penetrate through the gap from the inside of the main body supporting cylinder and extend to the outside of the main body supporting cylinder; the main body supporting cylinder is of a double-layer structure, a sliding cavity is formed inside the main body supporting cylinder, openings communicated with the sliding cavity are formed in two long side ends, close to the notch, of the main body supporting cylinder, an arc cleaning plate is slidably arranged in the sliding cavity, an arc through groove communicated with the sliding cavity is formed in the inner side face of the main body supporting cylinder, an arc sliding strip is arranged on one face, close to the arc through groove, of the arc cleaning plate, a driving gear is rotatably arranged on the supporting shaft, at least part of the driving gear penetrates through the arc through groove and is meshed with the arc sliding strip, the driving gear can drive the arc cleaning plate to move around in the sliding cavity, and the arc cleaning plate can slide from one end opening of the main body supporting cylinder to the other end opening; the local repairing device can be conveyed to the repairing part of a pipeline to be repaired by traction equipment commonly used by people in the field, a motor is firstly started, the motor is a bidirectional rotating motor, the rotating direction and the frequency and the times of positive and negative rotation of the motor can be set, the motor drives a driving gear to rotate, so that the driving gear drives an arc cleaning plate to rotate around in a sliding cavity through an arc sliding strip meshed with the driving gear, the arc cleaning plate can slide from one end opening of a main body supporting cylinder to the other end opening, namely, the arc cleaning plate can cover the notch, when the arc cleaning plate covers the notch, bristles on the arc cleaning plate can be connected with the inner wall of the pipeline to be repaired, foreign bodies such as water scales and the like at the repairing part are wiped clean by the back and forth movement of the arc cleaning plate, then the motor is closed, so that the arc cleaning plate is positioned in the sliding cavity, the notch is opened, and then, pressing the pressing plate impregnated with the hot resin from the inside of the main body supporting cylinder to the position to be repaired, and after the hot resin is dried and formed, retracting the pressing plate to the inside of the main body supporting cylinder by using the cylinder cavity pressing plate to finish the repairing work; the local repairing device provided by the invention has the advantages that the pressure is stable and the operation is convenient, different from the water pressure and the air pressure, and before the hot resin is dried and formed, foreign matters such as water scales and the like at the position to be repaired can be cleaned, so that the hot forming of the filling material is firmer, the filling material is not easy to fall off again, and the repairing effect is greatly improved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a sectional view of a partial repair device for a drainage pipeline according to the present invention;
FIG. 2 is a block diagram of a support shaft in the partial repair apparatus provided in FIG. 1;
fig. 3 is a block diagram of an arcuate cleaning plate of the partial repair apparatus provided in fig. 1.
Description of the reference numerals
1-main body support cylinder 2-arc cleaning plate
3-cleaning brush 4-supporting shaft
5-telescopic rod mechanism 6-cylinder
7-pressing plate 8-support frame
9-electric machine 10-first pulley
11-drive gear 12-secondary pulley
13-arc-shaped sliding strip 14-stop block
501-sleeve 502-telescopic rod
503-threaded hole 504-arc-shaped abutting plate
505-fastening part
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, the directional words "inside, outside" and the like included in a term merely represent the orientation of the term in a conventional use state or a colloquial meaning understood by those skilled in the art, and should not be construed as limiting the term.
As shown in fig. 1-3: the invention provides a local repairing device for a drainage pipeline, which comprises a main body supporting cylinder 1, wherein a gap is formed in the main body supporting cylinder 1 along the length direction of the main body supporting cylinder, a supporting shaft 4 is coaxially arranged in the main body supporting cylinder 1, the supporting shaft 4 is connected with the inner surface of the main body supporting cylinder 1 through a plurality of telescopic rod mechanisms 5, and two ends of the supporting shaft 4 are respectively connected with a pressing plate 7 through an air cylinder 6, so that the pressing plate 7 can penetrate through the gap from the inside of the main body supporting cylinder 1 and extend to the outside of the main body supporting cylinder 1; the main part supports a section of thick bamboo 1 and is bilayer structure, and inside is formed with smooth chamber, be close to in the main part supports a section of thick bamboo 1 two long limit ends of breach form with the opening that smooth chamber is linked together, be provided with arc cleaning board 2 in the smooth intracavity slidable, the medial surface of main part support a section of thick bamboo 1 be provided with the arc that smooth chamber is linked together leads to the groove, be close to in the arc cleaning board 2 the one side that the arc led to the groove is provided with arc draw runner 13, still rotationally be provided with drive gear 11 on the back shaft 4, drive gear 11 at least part runs through the arc lead to the groove and with the meshing of arc draw runner 13 mutually, makes drive gear 11 can drive arc cleaning board 2 is in the interior encirclement of smooth intracavity can make it from the one end opening of main part support a section of thick bamboo. The local repairing device can be conveyed to the repairing part of a pipeline to be repaired by traction equipment commonly used by people in the field, a motor is firstly started, the motor is a bidirectional rotating motor, the rotating direction and the frequency and the times of positive and negative rotation of the motor can be set, the motor drives a driving gear to rotate, so that the driving gear drives an arc cleaning plate to rotate around in a sliding cavity through an arc sliding strip meshed with the driving gear, the arc cleaning plate can slide from one end opening of a main body supporting cylinder to the other end opening, namely, the arc cleaning plate can cover the notch, when the arc cleaning plate covers the notch, bristles on the arc cleaning plate can be connected with the inner wall of the pipeline to be repaired, foreign bodies such as water scales and the like at the repairing part are wiped clean by the back and forth movement of the arc cleaning plate, then the motor is closed, so that the arc cleaning plate is positioned in the sliding cavity, the notch is opened, and then, pressing the pressing plate impregnated with the hot resin from the inside of the main body supporting cylinder to the position to be repaired, and after the hot resin is dried and formed, retracting the pressing plate to the inside of the main body supporting cylinder by using the cylinder cavity pressing plate to finish the repairing work; the local repairing device provided by the invention has the advantages that the pressure is stable and the operation is convenient, different from the water pressure and the air pressure, and before the hot resin is dried and formed, foreign matters such as water scales and the like at the position to be repaired can be cleaned, so that the hot forming of the filling material is firmer, the filling material is not easy to fall off again, and the repairing effect is greatly improved.
In a preferred embodiment of the present invention, in order to provide power to the driving gear 11, a supporting frame 8 located inside the main body supporting cylinder 1 is further fixed on the supporting shaft 4, a motor 9 is fixed on the supporting frame 8, a first pulley 10 is coaxially fixed on a rotating head of the motor 9, the driving gear 11 is further rotatably provided on the supporting frame 8, a second pulley 12 is coaxially fixed on an end surface of the driving gear 11, and the first pulley 10 and the second pulley 12 are connected by a belt. Here, the motor 9 may be provided with a storage battery to supply power, and the control may be remote control.
In a preferred embodiment of the present invention, in order to better scrape and clean the to-be-repaired part and improve the repairing effect, a cleaning brush 3 is fixed on the arc surface of the arc cleaning plate 2 far away from the arc through groove.
In a preferred embodiment of the present invention, the motor 9 is a bidirectional rotating motor, which may be a type commonly known and used by those skilled in the art, and it is sufficient to set the steering, frequency and rotating time.
In a preferred embodiment of the present invention, in order to be able to replace the main body support cylinders 1 of different diameters according to different sized pipes, the telescopic rod mechanism 5 comprises a sleeve 501 fixed on the support shaft 4, a telescopic rod 502 and a fixed head device; sleeve pipe 501 one end is fixed on support shaft 4, and the other end terminal surface is inwards sunken to be formed with the spout, telescopic link 502 one end slidable ground is located in the spout, and the other end is fixed with fixed head device, sleeve pipe 501's side be provided with a plurality of with the screw hole 503 that the spout is linked together, the wrench joint has locking screw on the screw hole, and is rotatory locking screw can with telescopic link 502 is partly fastening at least in the spout. The telescopic rod mechanism 5 can be adjusted in length according to the sizes of different diameters of the main body support cylinder 1.
In a preferred embodiment of the present invention, the fixing head device includes an arc-shaped abutting plate 504 fixed on the telescopic rod 502, two ends of the arc-shaped abutting plate 504 extend outward to form a fastening portion 505, and the fastening portion 505 is connected with the inner side surface of the main body supporting cylinder 1 through a bolt assembly; here, the fastening portion 505 is provided with a first screw hole, and the inner surface of the main body support tube 1 is provided with a second screw hole.
In a preferred embodiment of the present invention, the number of the telescopic rod mechanisms 5 is not less than 2 groups in order to make the whole structure more stable.
In a preferred embodiment of the present invention, in order to make the pressure plate 7 better fit to the inner wall of the pipe to be repaired, the pressure plate 7 has an arc-shaped structure.
In a preferred embodiment of the invention, a stop block 14 is further fixed in the sliding cavity, when the arc-shaped cleaning plate 2 covers the gap under the driving of the motor, one end of the arc-shaped cleaning plate can abut against one surface of the stop block 14, when the arc-shaped cleaning plate 2 is retracted into the sliding cavity under the driving of the motor, the other end of the arc-shaped cleaning plate 2 can abut against the other surface of the stop block 14, and the stop block 14 mainly plays a role in limiting.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (9)
1. The local repair device for the drainage pipeline is characterized by comprising a main body supporting barrel (1), wherein a gap is formed in the main body supporting barrel (1) along the length direction of the main body supporting barrel, a supporting shaft (4) is coaxially arranged in the main body supporting barrel (1), the supporting shaft (4) is connected with the inner surface of the main body supporting barrel (1) through a plurality of telescopic rod mechanisms (5), and two ends of the supporting shaft (4) are respectively connected with a pressing plate (7) through an air cylinder (6), so that the pressing plate (7) can penetrate through the gap from the inside of the main body supporting barrel (1) and extend to the outside of the main body supporting barrel (1); the main body supporting cylinder (1) is of a double-layer structure, a sliding cavity is formed inside the main body supporting cylinder, two long side ends of the main body supporting cylinder (1) close to the gap are provided with openings communicated with the sliding cavity, an arc-shaped cleaning plate (2) is slidably arranged in the sliding cavity, an arc-shaped through groove communicated with the sliding cavity is arranged on the inner side surface of the main body supporting cylinder (1), an arc-shaped sliding strip (13) is arranged on one surface of the arc-shaped cleaning plate (2) close to the arc-shaped through groove, the supporting shaft (4) is also rotatably provided with a driving gear (11), at least part of the driving gear (11) penetrates through the arc-shaped through groove and is meshed with the arc-shaped sliding strip (13), the driving gear (11) can drive the arc-shaped cleaning plate (2) to move in the sliding cavity in a surrounding manner, and the arc-shaped cleaning plate can slide from one end opening of the main body supporting cylinder (1) to the other end opening.
2. The local repair device according to claim 1, wherein a support frame (8) located inside the main body support cylinder (1) is further fixed on the support shaft (4), a motor (9) is fixed on the support frame (8), a first belt wheel (10) is coaxially fixed on a rotating head of the motor (9), the support frame (8) is further rotatably provided with the drive gear (11), a second belt wheel (12) is coaxially fixed on an end face of the drive gear (11), and the first belt wheel (10) is connected with the second belt wheel (12) through a belt.
3. The local repair device according to claim 2, wherein a cleaning brush (3) is fixed to the arc surface of the arc-shaped cleaning plate (2) far from the arc-shaped through groove.
4. The local repair device according to claim 3, wherein the motor (9) is a bidirectional rotary motor.
5. The local repair device according to claim 4, characterized in that said telescopic rod mechanism (5) comprises a sleeve (501) fixed on said support shaft (4), a telescopic rod (502) and a fixed head device; sleeve pipe (501) one end is fixed on back shaft (4), and the other end terminal surface is inwards sunken to be formed with the spout, telescopic link (502) one end slidable is located in the spout, and the other end is fixed with fixed head device, the side of sleeve pipe (501) be provided with a plurality of with screw hole (503) that the spout is linked together, the twist has locking screw on the screw hole, and is rotatory locking screw can with telescopic link (502) at least part fastening is in the spout.
6. The local repair device according to claim 5, wherein the fixing head device comprises an arc-shaped abutting plate (504) fixed on the telescopic rod (502), two ends of the arc-shaped abutting plate (504) extend outwards to form a fastening part (505), and the fastening part (505) is connected with the inner side surface of the main body supporting cylinder (1) through a bolt assembly.
7. The local repair device according to claim 6, wherein the number of telescopic rod mechanisms (5) is not less than 2 groups.
8. The local repair device according to claim 1, wherein the pressure plate (7) is of an arc-shaped configuration.
9. The partial repair device according to claim 1, wherein a stop block (14) is also fixed in the slide cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910352690.XA CN110030458B (en) | 2019-04-29 | 2019-04-29 | Local repair device for drainage pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910352690.XA CN110030458B (en) | 2019-04-29 | 2019-04-29 | Local repair device for drainage pipeline |
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| CN110030458A CN110030458A (en) | 2019-07-19 |
| CN110030458B true CN110030458B (en) | 2020-09-01 |
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| CN201910352690.XA Active CN110030458B (en) | 2019-04-29 | 2019-04-29 | Local repair device for drainage pipeline |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112377718B (en) * | 2020-09-24 | 2022-05-20 | 宁波市鄞州世纪耀达市政建设有限公司 | Trenchless pipeline repairing system and method thereof |
| CN113531231B (en) * | 2021-05-13 | 2023-04-07 | 锽河铝材实业(东莞)有限公司 | Improved generation concatenation formula aluminum alloy ex-trusions |
| CN113898815B (en) * | 2021-10-11 | 2023-04-25 | 上海乔智科技有限公司 | Non-excavation device for repairing deformation collapse of drainage pipeline and repairing method thereof |
| CN115626744B (en) * | 2022-11-10 | 2023-05-30 | 广东圣玛洛热能科技有限公司 | Water outlet system device with filtering, purifying and sterilizing heating belt induction switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2735098C2 (en) * | 1977-08-04 | 1982-01-14 | Sintecno GmbH Gesellschaft f. synthetisch-technische Erzeugnisse, 8081 Breitbrunn | Procedure for the rehabilitation of the inner socket joints of municipal water supply pipes |
| FR2618828B1 (en) * | 1987-07-30 | 1991-08-30 | Caillet Rene | METHOD AND APPARATUS FOR REPAIRING GARBAGE COLUMNS |
| JP2011185925A (en) * | 2010-02-15 | 2011-09-22 | Toshiba Corp | In-pipe work device |
| JP5798818B2 (en) * | 2011-07-05 | 2015-10-21 | 積水化学工業株式会社 | Tube wall hole covering method, pressure heating jig, and tube connecting method |
| CN206439563U (en) * | 2017-01-17 | 2017-08-25 | 河南中拓石油工程技术股份有限公司 | A kind of semi-automatic hydraulic stay tube equipment |
| CN108266594B (en) * | 2017-12-18 | 2020-03-17 | 中国矿业大学 | Automatic inspection dredging device and dredging method for pipeline robot |
| CN208365065U (en) * | 2018-03-27 | 2019-01-11 | 上海潜业市政工程有限公司 | A kind of non-excavation rehabilitation pipeline local route repair device |
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Address after: 4 / F, building 3, 558 Tongxie Road, Changning District, Shanghai Patentee after: Shanghai Yufan Environmental Technology Co.,Ltd. Address before: 200050 4th floor, building 3, 558 Tongxie Road, Changning District, Shanghai Patentee before: SHANGHAI RE.FINE ENVIRONMENT SCIENCE & TECHNOLOGY Co.,Ltd. |
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