CN113187069B - Municipal drainage pipeline - Google Patents
Municipal drainage pipeline Download PDFInfo
- Publication number
- CN113187069B CN113187069B CN202110509160.9A CN202110509160A CN113187069B CN 113187069 B CN113187069 B CN 113187069B CN 202110509160 A CN202110509160 A CN 202110509160A CN 113187069 B CN113187069 B CN 113187069B
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- Prior art keywords
- cleaning
- ring
- helical gear
- motor
- pipe fitting
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Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing
- E03F9/002—Cleaning sewer pipes by mechanical means
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
- E03F2003/065—Refurbishing of sewer pipes, e.g. by coating, lining
Abstract
The invention relates to the relevant field of municipal drainage, in particular to a municipal drainage pipeline, which comprises a pipe fitting, a displacement assembly, a surrounding cleaning mechanism and a repairing and pushing mechanism, wherein the displacement assembly is fixedly arranged on the pipe fitting, the surrounding cleaning mechanism is fixedly arranged on the displacement assembly, and the repairing and pushing mechanism is slidably arranged on the surrounding cleaning mechanism; this device has the function that the clearance pipeline piled up silt, can clear up stubborn silt, guarantees that the pipeline is unobstructed, has the function that promotes silt simultaneously, can accelerate clearance speed.
Description
Technical Field
The invention relates to the relevant field of municipal drainage, in particular to a municipal drainage pipeline.
Background
Municipal drainage pipe refers to rainwater, sewage pipe under the town road, commonly known as "sewer line" promptly, often called municipal drainage pipe in the engineering, and in drainage pipe, silt or rubbish are piled up and are common phenomenon, and especially are located tee bend or cross department pipeline, and it is obvious to pile up the phenomenon, uses the back for a long time, just can appear the emergence of the condition such as jam, and during artifical periodic cleaning, need clear up with the help of squirt or sword shovel section by section, and the cleaning efficiency is low and be difficult to the complete clearance waste layer.
Disclosure of Invention
The municipal drainage pipeline mainly solves the technical problem of providing a municipal drainage pipeline, and the device has the function of cleaning accumulated sludge in the pipeline, can clean stubborn sludge, ensures smooth pipeline, has the function of pushing the sludge, and can accelerate the cleaning speed.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a municipal drainage pipeline, includes pipe fitting, displacement subassembly, encircles clearance mechanism and restores and pushing mechanism, displacement subassembly fixed mounting on the pipe fitting, encircle clearance mechanism fixed mounting on the displacement subassembly, restore and pushing mechanism slidable mounting on encircleing clearance mechanism.
As a further optimization of the technical scheme, the displacement assembly of the municipal drainage pipeline comprises a threaded rod, a limiting block, a displacement motor and a connecting shell, wherein the displacement motor is fixedly arranged in a groove formed in the pipe fitting, the output end of the displacement motor is fixedly provided with the threaded rod, the threaded rod is rotatably arranged in the groove formed in the pipe fitting and is in threaded connection with the limiting block, the limiting block is slidably arranged in the groove formed in the pipe fitting, and the connecting shell is fixedly arranged on the limiting block.
As a further optimization of the technical scheme, the surrounding cleaning mechanism of the municipal drainage pipeline comprises a cleaning motor, a cleaning ring, a main helical gear, an auxiliary helical gear, a driven helical gear, a connecting short rod and a cleaning brush, wherein the cleaning motor is fixedly arranged in a groove formed in a connecting shell;
the cleaning ring comprises a helical gear ring, a T-shaped track ring and scraping teeth, the helical gear ring is fixedly provided with the T-shaped track ring, the scraping teeth are fixedly arranged on the helical gear ring, the helical gear ring is meshed with the main helical gear, and the T-shaped track ring is slidably arranged in a groove arranged on the connecting shell.
As a further optimization of the technical scheme, the repairing and pushing mechanism of the municipal drainage pipeline comprises a hinge pin, a hidden motor, a threaded rod for expansion, an internal thread cylinder, an annular limiting part, a correction frame, a telescopic rod, a telescopic cylinder, a swinging push plate, an internal spring and a connecting pin, wherein the hinge pin is hinged with the connecting shell, the hidden motor is fixedly installed in a groove of the hinge pin, the threaded rod for expansion is fixedly installed at the output end of the hidden motor, the threaded rod for expansion is in threaded connection with the internal thread cylinder, the annular limiting part is fixedly installed on the internal thread cylinder, the annular limiting part is rotatably installed on the correction frame, the correction frame is slidably installed on the T-shaped track ring, the connecting pin is fixedly installed on the internal thread cylinder, the connecting pin is hinged with the telescopic rod, the telescopic rod is slidably installed in a groove formed in the telescopic cylinder, the internal spring is fixedly installed on the telescopic cylinder, the internal spring is located in a groove formed in the telescopic cylinder, and the swinging push plate is rotatably installed in a groove formed in the telescopic cylinder.
The municipal drainage pipeline has the beneficial effects that:
1. the clearance ring is the annular design, the inner wall of laminating pipe fitting, so can not influence the patency of pipe fitting, when there is silt to pile up in the pipe fitting, start displacement motor, the displacement motor drives the threaded rod rotatory, threaded rod and stopper threaded connection, the stopper moves along the threaded rod this moment, the stopper drives through connecting the shell and encircles clearance mechanism and repair and pushing mechanism removal, start clearance motor, the clearance motor drives main helical gear and vice helical gear rotatory, main helical gear meshes with the clearance ring, the clearance ring of both sides is rotatory this moment, it is rotatory to drive the scraping teeth, scrape stubborn silt, vice helical gear meshes with driven helical gear simultaneously, it is rotatory that driven helical gear is rotatory to drive the cleaning brush through connecting the quarter butt, the tooth's socket of rotatory cleaning brush clearance helical gear ring, guarantee the cleanness in the tooth's socket of helical gear ring, clear silt in the pipe fitting through the clearance ring, the unobstructed influence of pipe fitting's normal function has been guaranteed, the inner wall of clearance ring laminating pipe fitting, can follow root portion's clearance, guarantee the effect of clearance.
2. Along with the lateral shifting of clearance ring, deformation takes place for a long time easily, start hidden motor, it is rotatory to hide the motor and drive flexible threaded rod of using, flexible threaded rod and internal thread section of thick bamboo threaded connection of using, the extension of the internal thread section of thick bamboo this moment promotes and corrects a frame downstream, the correction frame of both sides this moment with connect the three position of shell formation and carried on spacingly to the clearance ring, when the clearance ring is rotatory, the correction frame of both sides with connect the shell and correct the deformation that the clearance ring takes place.
3. When the internal thread cylinder is contracted, the telescopic rod extrudes the internal spring to rise, and the raised swinging push plate ensures the lower space and avoids influencing the smoothness of the pipe fitting; when an internal thread section of thick bamboo extension, the swing push pedal falls to pipe fitting inner wall bottom, and the swing push pedal is located between two clearance rings this moment, and the clearance ring plays spacing effect to the swing push pedal, and when clearance ring rotation carries out silt clearance, the swing push pedal plays the effect of baffle, promotes silt and moves forward, guarantees that silt can not continue to pile up in the pipe fitting.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic perspective view of a municipal drainage pipeline according to the present invention.
FIG. 2 is a schematic view of a partial perspective structure of a municipal drainage pipeline according to the invention.
FIG. 3 is a perspective view of the displacement assembly 2 of a municipal drainage pipeline according to the invention.
FIG. 4 is a perspective view of a surrounding cleaning mechanism 3 for a municipal drainage pipeline according to the invention.
FIG. 5 is a schematic view of the complementary perspective structure of the municipal drainage pipeline surrounding the cleaning mechanism 3 of the invention.
FIG. 6 is a schematic view of a partial cross-sectional structure of a municipal drainage pipeline surrounding the clearing mechanism 3 of the invention.
FIG. 7 is a schematic perspective view of a cleaning ring 3-2 of a municipal drainage pipeline of the invention.
FIG. 8 is a schematic cross-sectional view of a cleaning ring 3-2 of a municipal drainage pipeline of the invention.
FIG. 9 is a schematic perspective view of a municipal drainage pipeline repairing and pushing mechanism 4 according to the present invention.
FIG. 10 is a perspective view of an aligning frame 4-6 for a municipal drainage pipeline according to the present invention.
FIG. 11 is a schematic cross-sectional view of a municipal drainage pipeline rehabilitation and propulsion mechanism 4 according to the present invention.
In the figure: a pipe fitting 1; a displacement assembly 2; 2-1 parts of a threaded rod; 2-2 of a limiting block; a displacement motor 2-3; connecting the shells 2-4; a surrounding cleaning mechanism 3; a cleaning motor 3-1; cleaning a ring 3-2; 3-2-1 of a bevel gear ring; a T-shaped track ring 3-2-2; 3-2-3 parts of scraping teeth; 3-3 of a main bevel gear; 3-4 parts of an auxiliary bevel gear; 3-5 parts of a driven bevel gear; 3-6 of a connecting short rod; 3-7 parts of a cleaning brush; a repair and push mechanism 4; a hinge pin 4-1; hiding a motor 4-2; 4-3 of a telescopic threaded rod; 4-4 parts of an internal thread cylinder; an annular limiting member 4-5; 4-6 of a correction frame; 4-7 of a telescopic rod; 4-8 parts of a telescopic cylinder; 4-9 of a swinging push plate; 4-10 parts of an inner spring; connecting feet 4-11.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first specific implementation way is as follows:
the embodiment is described below with reference to fig. 1 to 11, and the municipal drainage pipeline comprises a pipe fitting 1, a displacement assembly 2, a surrounding cleaning mechanism 3 and a repairing and pushing mechanism 4, wherein the displacement assembly 2 is fixedly installed on the pipe fitting 1, the surrounding cleaning mechanism 3 is fixedly installed on the displacement assembly 2, and the repairing and pushing mechanism 4 is slidably installed on the surrounding cleaning mechanism 3.
The second embodiment is as follows:
the following describes the embodiment with reference to fig. 1-11, and the embodiment further describes the first embodiment, where the displacement assembly 2 includes a threaded rod 2-1, a limiting block 2-2, a displacement motor 2-3, and a connecting shell 2-4, the displacement motor 2-3 is fixedly installed in a groove formed on the pipe fitting 1, the output end of the displacement motor 2-3 is fixedly installed with the threaded rod 2-1, the threaded rod 2-1 is rotatably installed in the groove formed on the pipe fitting 1, the threaded rod 2-1 is in threaded connection with the limiting block 2-2, the limiting block 2-2 is slidably installed in the groove formed on the pipe fitting 1, and the connecting shell 2-4 is fixedly installed on the limiting block 2-2.
The third concrete implementation mode:
the following describes the present embodiment with reference to fig. 1-11, which further describes the second embodiment, wherein the surrounding cleaning mechanism 3 includes a cleaning motor 3-1, a cleaning ring 3-2, a main helical gear 3-3, a secondary helical gear 3-4, a driven helical gear 3-5, a connecting short rod 3-6, and a cleaning brush 3-7, the cleaning motor 3-1 is fixedly installed in a groove provided on the connecting housing 2-4, the output end of the cleaning motor 3-1 is fixedly installed with the main helical gear 3-3, the main helical gear 3-3 is fixedly installed with the secondary helical gear 3-4, the main helical gear 3-3 is engaged with the cleaning ring 3-2, the cleaning ring 3-2 is slidably installed in a groove provided on the connecting housing 2-4, the secondary helical gear 3-4 is engaged with the driven helical gear 3-5, the driven helical gear 3-5 is rotatably installed in a groove provided on the connecting housing 2-4, the driven helical gear 3-5 is fixedly connected with the connecting short rod 3-6, and the cleaning brush 3-6 is fixedly installed on the connecting short rod 3-6;
the cleaning ring 3-2 comprises a bevel gear ring 3-2-1, a T-shaped track ring 3-2-2 and scraping teeth 3-2-3, the bevel gear ring 3-2-1 is fixedly provided with the T-shaped track ring 3-2-2, the bevel gear ring 3-2-1 is fixedly provided with the scraping teeth 3-2-3, the bevel gear ring 3-2-1 is meshed with the main bevel gear 3-3, and the T-shaped track ring 3-2-2 is slidably arranged in a groove arranged on the connecting shell 2-4.
The fourth concrete implementation mode:
the third embodiment is further described with reference to fig. 1-11, wherein the repairing and pushing mechanism 4 comprises a hinge pin 4-1, a hidden motor 4-2, a threaded rod 4-3 for extension, an internal thread cylinder 4-4, an annular limiting member 4-5, a correcting frame 4-6, a telescopic rod 4-7, a telescopic cylinder 4-8, a swinging push plate 4-9, an internal spring 4-10, a connecting pin 4-11, the hinge pin 4-1 is hinged with the connecting shell 2-4, the hidden motor 4-2 is fixedly arranged in a groove of the hinge pin 4-1, the threaded rod 4-3 for extension is fixedly arranged at an output end of the hidden motor 4-2, the telescopic threaded rod 4-3 is in threaded connection with the internal threaded barrel 4-4, the internal threaded barrel 4-4 is fixedly provided with an annular limiting piece 4-5, the annular limiting piece 4-5 is rotatably installed on the correcting frame 4-6, the correcting frame 4-6 is slidably installed on the T-shaped track ring 3-2-2, the internal threaded barrel 4-4 is fixedly provided with a connecting pin 4-11, the connecting pin 4-11 is hinged with the telescopic rod 4-7, the telescopic rod 4-7 is slidably installed in a groove formed in the telescopic barrel 4-8, the telescopic rod 4-7 is fixedly provided with an internal spring 4-10, the internal spring 4-10 is located in the groove formed in the telescopic barrel 4-8, and the swinging push plate 4-9 is rotatably installed in the groove formed in the telescopic barrel 4-8.
The invention relates to a municipal drainage pipeline, which has the working principle that:
the cleaning ring 3-2 is designed in an annular shape and is attached to the inner wall of the pipe fitting 1, so that the smoothness of the pipe fitting 1 cannot be influenced, when silt is accumulated in the pipe fitting 1, the motor 2-3 for displacement is started, the motor 2-3 for displacement drives the threaded rod 2-1 to rotate, the threaded rod 2-1 is in threaded connection with the limiting block 2-2, the limiting block 2-2 moves along the threaded rod 2-1 at the moment, the limiting block 2-2 drives the surrounding cleaning mechanism 3 and the repairing and pushing mechanism 4 to move through the connecting shell 2-4, the motor 3-1 for cleaning is started, the motor 3-1 for cleaning drives the main helical gear 3-3 and the auxiliary helical gear 3-4 to rotate, the main helical gear 3-3 is meshed with the cleaning ring 3-2, at the moment, the cleaning rings 3-2 on the two sides rotate to drive the scraping teeth 3-2-3 to rotate to scrape stubborn sludge, meanwhile, the auxiliary bevel gears 3-4 are meshed with the driven bevel gears 3-5, the driven bevel gears 3-5 rotate to drive the cleaning brushes 3-7 to rotate through the connecting short rods 3-6, the rotating cleaning brushes 3-7 clean the tooth grooves of the bevel gear rings 3-2-1 to ensure that the tooth grooves of the bevel gear rings 3-2-1 are cleaned, the cleaning rings 3-2 are used for cleaning the sludge in the pipe 1 to ensure that the normal functions of the pipe 1 are not influenced by the smoothness of the pipe 1, the cleaning rings 3-2 are attached to the inner wall of the pipe 1 and can be clearly cleaned from the root to ensure the cleaning effect of the sludge.
Along with the transverse movement of the cleaning ring 3-2, deformation is easy to occur for a long time, the hidden motor 4-2 is started, the hidden motor 4-2 drives the telescopic threaded rod 4-3 to rotate, the telescopic threaded rod 4-3 is in threaded connection with the internal thread barrel 4-4, the internal thread barrel 4-4 is extended at the moment, the correcting frame 4-6 is pushed to move downwards, the correcting frames 4-6 on the two sides and the connecting shell 2-4 form three point positions to limit the cleaning ring 3-2 at the moment, and when the cleaning ring 3-2 rotates, the correcting frames 4-6 on the two sides and the connecting shell 2-4 correct the cleaning ring 3-2 and correct the deformation of the cleaning ring 3-2.
When the internal thread cylinder 4-4 is contracted, the telescopic rod 4-7 extrudes the internal spring 4-10 to rise, and the raised swinging push plate 4-9 ensures the lower space and avoids influencing the fluency of the pipe fitting 1, and the swinging push plate 4-9 is rotatably arranged on the telescopic cylinder 4-8 and can freely swing, so that the fluency of the pipe fitting 1 is not influenced; when the internal thread cylinder 4-4 is prolonged and the swinging push plate 4-9 descends to the bottom end of the inner wall of the pipe fitting 1, the swinging push plate 4-9 is positioned between the two cleaning rings 3-2, the cleaning rings 3-2 play a limiting role on the swinging push plate 4-9, and when the cleaning rings 3-2 rotate to clean sludge, the swinging push plate 4-9 plays a role of a baffle plate to push the sludge to move forwards, so that the sludge cannot be continuously accumulated in the pipe fitting 1.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.
Claims (1)
1. The utility model provides a municipal drainage pipeline, includes pipe fitting (1), displacement subassembly (2), encircles clearance mechanism (3) and repairs and pushing mechanism (4), its characterized in that: the pipe fitting cleaning device is characterized in that the displacement assembly (2) is fixedly arranged on the pipe fitting (1), the surrounding cleaning mechanism (3) is fixedly arranged on the displacement assembly (2), and the repairing and pushing mechanism (4) is slidably arranged on the surrounding cleaning mechanism (3);
the displacement assembly (2) comprises a threaded rod (2-1), a limiting block (2-2), a displacement motor (2-3) and a connecting shell (2-4), the displacement motor (2-3) is fixedly installed in a groove formed in the pipe fitting (1), the threaded rod (2-1) is fixedly installed at the output end of the displacement motor (2-3), the threaded rod (2-1) is rotatably installed in the groove formed in the pipe fitting (1), the threaded rod (2-1) is in threaded connection with the limiting block (2-2), the limiting block (2-2) is slidably installed in the groove formed in the pipe fitting (1), and the connecting shell (2-4) is fixedly installed on the limiting block (2-2);
the surrounding cleaning mechanism (3) comprises a cleaning motor (3-1), a cleaning ring (3-2), a main helical gear (3-3), an auxiliary helical gear (3-4), a driven helical gear (3-5), a connecting short rod (3-6) and a cleaning brush (3-7), wherein the cleaning motor (3-1) is fixedly arranged in a groove arranged on the connecting shell (2-4), the output end of the cleaning motor (3-1) is fixedly provided with the main helical gear (3-3), the auxiliary helical gear (3-4) is fixedly arranged on the main helical gear (3-3), the main helical gear (3-3) is meshed with the cleaning ring (3-2), the cleaning ring (3-2) is slidably arranged in a groove arranged on the connecting shell (2-4), the auxiliary helical gear (3-4) is meshed with the driven helical gear (3-5), the driven helical gear (3-5) is rotatably arranged in a groove arranged on the connecting shell (2-4), the driven helical gear (3-5) is fixedly connected with the connecting short rod (3-6), and the cleaning brush (3-7) is fixedly connected with the cleaning brush (3-7);
the cleaning ring (3-2) comprises a bevel gear ring (3-2-1), a T-shaped track ring (3-2-2) and scraping teeth (3-2-3), the bevel gear ring (3-2-1) is fixedly provided with the T-shaped track ring (3-2-2), the bevel gear ring (3-2-1) is fixedly provided with the scraping teeth (3-2-3), the bevel gear ring (3-2-1) is meshed with the main bevel gear (3-3), and the T-shaped track ring (3-2-2) is slidably arranged in a groove arranged on the connecting shell (2-4);
the repairing and pushing mechanism (4) comprises a hinge pin (4-1), a hidden motor (4-2), a threaded rod (4-3) for expansion, an internal thread cylinder (4-4), an annular limiting piece (4-5), a correcting frame (4-6), a telescopic rod (4-7), a telescopic cylinder (4-8), a swinging push plate (4-9), an internal spring (4-10) and a connecting pin (4-11), wherein the hinge pin (4-1) is hinged with the connecting shell (2-4), the hidden motor (4-2) is fixedly arranged in a groove of the hinge pin (4-1), the threaded rod (4-3) for expansion is fixedly arranged at the output end of the hidden motor (4-2), the threaded rod (4-3) for expansion is in threaded connection with the internal thread cylinder (4-4), the annular limiting piece (4-5) is fixedly arranged on the internal thread cylinder (4-4), the annular limiting piece (4-5) is rotatably arranged on the correcting frame (4-6), the correcting frame (4-6) is slidably arranged on the T-shaped track ring (3-2-2), the connecting pin (4-11) is fixedly arranged on the connecting cylinder (4-11), the telescopic rod (4-7) is slidably arranged in a groove arranged on the telescopic cylinder (4-8), the telescopic rod (4-7) is fixedly provided with an internal spring (4-10), the internal spring (4-10) is positioned in the groove arranged on the telescopic cylinder (4-8), and the swinging push plate (4-9) is rotatably arranged in the groove arranged on the telescopic cylinder (4-8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110509160.9A CN113187069B (en) | 2021-05-11 | 2021-05-11 | Municipal drainage pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110509160.9A CN113187069B (en) | 2021-05-11 | 2021-05-11 | Municipal drainage pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113187069A CN113187069A (en) | 2021-07-30 |
| CN113187069B true CN113187069B (en) | 2022-10-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110509160.9A Active CN113187069B (en) | 2021-05-11 | 2021-05-11 | Municipal drainage pipeline |
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| Country | Link |
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| CN (1) | CN113187069B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114656106B (en) * | 2022-03-22 | 2023-08-01 | 义乌市排水有限公司 | Rainwater pipeline bypass enhanced water purification treatment system |
| CN115030268B (en) * | 2022-06-21 | 2023-06-02 | 东莞市广渠建筑工程有限公司 | Municipal water supply pipeline, water distribution pipe network and municipal water supply system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5090079A (en) * | 1990-07-13 | 1992-02-25 | Dowell Schlumberger Incorporated | Apparatus for cleaning pipe |
| CN111962657B (en) * | 2020-09-02 | 2021-12-17 | 徐州新大隆化工泵业制造有限公司 | Pipeline dredging equipment for urban pipeline drainage |
| CN112044887B (en) * | 2020-09-08 | 2021-11-05 | 安徽泽安智成科技有限公司 | Sewage treatment is with high-efficient pipeline desilting equipment |
| CN112095769A (en) * | 2020-09-18 | 2020-12-18 | 马鞍山迈若斯机器人科技有限公司 | Robot device for cleaning pipeline |
| CN112376684A (en) * | 2020-11-18 | 2021-02-19 | 周树林 | Pipeline anti-blocking dredging device for hydraulic engineering construction |
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2021
- 2021-05-11 CN CN202110509160.9A patent/CN113187069B/en active Active
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| CN113187069A (en) | 2021-07-30 |
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Effective date of registration: 20220905 Address after: 1st Floor, Warehouse 104, No. 17 Hongfeng Road, Xingsha Industrial Base, Changsha Economic Development Zone, Changsha Free Trade Pilot Zone, Changsha City, Hunan Province 410131 Applicant after: Hunan Wokai Energy Saving Technology Co.,Ltd. Address before: 150000 Room 201, Changjiang building, No. 91 Changjiang Road, Nangang District, Harbin, Heilongjiang Province Applicant before: Chen Yang |
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