CN112427422A - A pipeline cleaning device for sewage treatment - Google Patents
A pipeline cleaning device for sewage treatment Download PDFInfo
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- CN112427422A CN112427422A CN202011266743.5A CN202011266743A CN112427422A CN 112427422 A CN112427422 A CN 112427422A CN 202011266743 A CN202011266743 A CN 202011266743A CN 112427422 A CN112427422 A CN 112427422A
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- rotating
- rotating plate
- rod
- pipe
- plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/047—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes the cleaning devices having internal motors, e.g. turbines for powering cleaning tools
Abstract
The invention discloses a pipeline cleaning device for sewage treatment, which comprises a sewage pipe body, a driving assembly, a cleaning assembly and a pulling assembly, the driving assembly and the pulling assembly are respectively arranged at two ends of the sewage pipe body, the cleaning assembly is arranged inside the sewage pipe body, the driving assembly comprises a sleeve, a fixed frame, a servo motor, a coupler, a transmission pipe, a first transmission rod, a limiting slide block and a limiting slide groove, the sewage treatment device has the advantages of simple structure and convenient use, the pulling assembly and the cleaning assembly sequentially penetrate through the sewage pipe body, the driving component is connected with the sewage pipe body through the arranged sleeve, the pulling component is connected with the sewage pipe body through the pipe hoop, can drive the inside clearance brush rotation of clearance subassembly through starting servo motor, the clearance brush can effectually clear up sewage pipe, can make the device be applicable to straight tube and crooked pipeline through drive assembly.
Description
Technical Field
The invention relates to a pipeline cleaning device for sewage treatment.
Background
Sewage treatment is a process of purifying sewage to meet the water quality requirement of discharging the sewage into a certain water body or reusing the sewage. Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and is increasingly used in daily life of common people. Pipeline that sewage treatment used need clear up its inside after production is accomplished, and current sewer line cleaning device clears up the inner wall of roller to the pipeline through servo motor direct drive mostly, only can clear up the alignment pipe when clearing up, can't clear up crooked pipeline for sewer line cleaning device's suitability is relatively poor, can't effectually clear up the department of buckling when clearing up crooked pipeline.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a pipeline cleaning device for sewage treatment.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to a pipeline cleaning device for sewage treatment, which comprises a sewage pipe body, a driving assembly, a cleaning assembly and a pulling assembly, wherein the driving assembly and the pulling assembly are respectively arranged at two ends of the sewage pipe body, the cleaning assembly is arranged inside the sewage pipe body, the driving assembly comprises a sleeve, a fixed rack, a servo motor, a coupler, a transmission pipe, a first transmission rod, a limiting slide block and a limiting slide groove, the sleeve is sleeved on an outer pipe wall at one end of the sewage pipe body in a sliding manner, the servo motor is fixedly connected on an inner pipe wall at one end, far away from the sewage pipe body, of the sleeve through the fixed rack, the output end of the servo motor is fixedly connected with the transmission pipe through the coupler, the first transmission rod is inserted inside the transmission pipe in a sliding manner, the limiting slide blocks are fixedly connected on two sides of one end, inserted inside the transmission, the inner wall of the transmission pipe is provided with a limiting sliding groove corresponding to the limiting sliding block, the limiting sliding block is connected inside the limiting sliding groove in a sliding mode, the cleaning assembly comprises a first rotating rod, a second rotating rod, a first rotating pin, a first rotating plate, a second rotating plate, a third rotating plate, a fourth rotating plate, a first transmission shaft, a second rotating pin and a cleaning brush, the first rotating rod and the second rotating rod are connected in a rotating mode through the first rotating pin, the first rotating plate, the second rotating plate, the third rotating plate and the fourth rotating plate are sequentially arranged between the first rotating rod and the second rotating rod, one of the first rotating rod and the first transmission rod is connected in a rotating mode, one end, far away from the transmission pipe, of the first rotating rod and the other end, fixedly sleeved on the rod wall of the first rotating rod, the third rotating plate and the fourth rotating plate are fixedly sleeved on the rod wall of the second rotating rod, the plate walls of the first rotating plate and the second rotating plate are equidistantly inserted with a plurality of first transmission shafts in a sliding and inserting manner, the plate walls of the third rotating plate and the fourth rotating plate are equidistantly inserted with a plurality of second transmission shafts in a sliding and inserting manner, the first transmission shafts and the second transmission shafts are rotatably connected through second rotating pins, the plate walls on the excircle sides of the first rotating plate, the second rotating plate, the third rotating plate and the fourth rotating plate are equidistantly provided with a plurality of cleaning brushes, the pulling assembly comprises pipe hoops, second wing plates, second locking bolts, first screw rods, third rotating pins, second screw rods, fourth rotating pins and third screw rods, the pipe hoops are provided with two pipe hoops, the two pipe hoops are symmetrically sleeved on the outer pipe wall of the sewage pipe body, the outer pipe wall at the adjacent end of the two pipe hoops is fixedly connected with a second wing plate, and the adjacent two second wing plates are fixedly connected through the second locking bolts, the utility model discloses a sewage treatment device, including first lead screw, second lead screw, third lead screw, pipe hoop and pipe hoop threaded connection, first lead screw sets up the inside one end that is close to the pipe hoop of sewage body, the top of first lead screw is provided with the second lead screw, the top of second lead screw is provided with the third lead screw, all rotate the round pin through the third between first lead screw and the second lead screw and between second lead screw and the third lead screw and rotate to be connected, the third is kept away from to the third lead screw and is rotated the one end of round pin and rotate with the second dwang and be connected, the pipe hoop is passed to the one end that the third was.
As a preferable technical scheme of the invention, the pipe walls at two sides of the sleeve are symmetrically provided with slots, the outer pipe wall of the sleeve is fixedly connected with four first wing plates at positions corresponding to the slots, the first wing plates are symmetrically arranged at two sides of the slots, and two adjacent first wing plates are connected through a first locking bolt.
As a preferred technical scheme of the invention, the servo motor is electrically connected with an external power supply through a PLC controller.
As a preferred technical scheme of the present invention, the shaft walls of the first transmission shaft and the second transmission shaft at the ends far away from the second rotating pin are both fixedly connected with a limiting plate.
As a preferable technical solution of the present invention, a plurality of elastic springs are fixedly connected to the plate wall on the inner circle side of the cleaning brush, and ends of the plurality of elastic springs, which are far away from the cleaning brush, are respectively and fixedly connected to the plate walls on the outer circle sides of the first rotating plate, the second rotating plate, the third rotating plate and the fourth rotating plate which are opposite to each other.
The invention has the following beneficial effects: the device is simple in structure and convenient to use, the pulling assembly and the cleaning assembly sequentially penetrate through the sewage pipe body, the driving assembly is connected with the sewage pipe body through the arranged sleeve, the pulling assembly is connected with the sewage pipe body through the pipe hoop, the cleaning brush in the cleaning assembly can be driven to rotate by starting the servo motor, the cleaning brush can effectively clean the sewage pipe, and the device can be suitable for straight pipes and bent pipes through the driving assembly.
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 schematic structural view of the present invention;
FIG. 2 is a schematic view showing a connecting structure of a propeller shaft according to the present invention;
FIG. 3 is a schematic view of the connection structure of the transmission tube and the limiting slider in the present invention;
FIG. 4 is a sectional view taken along the line A-A in the present invention;
FIG. 5 is a sectional view taken along the direction B-B in the present invention;
fig. 6 is a partially enlarged view of the portion C in the present invention.
In the figure: 1. a sewage pipe body; 2. a drive assembly; 21. a sleeve; 22. a first wing plate; 23. a first locking bolt; 24. fixing the frame; 25. a servo motor; 26. a coupling; 27. a drive tube; 28. a first drive lever; 29. a limiting slide block; 210. a limiting chute; 3. cleaning the assembly; 31. a first rotating lever; 32. a second rotating lever; 33. a first rotating pin; 34. a first rotating plate; 35. a second rotating plate; 36. a third rotating plate; 37. a fourth rotating plate; 38. a first drive shaft; 39. a second drive shaft; 310. a second pivot pin; 311. a limiting plate; 312. an elastic spring; 313. cleaning a brush; 4. a pulling assembly; 41. a pipe hoop; 42. a second wing plate; 43. a second locking bolt; 44. a first lead screw; 45. a third rotating pin; 46. a second lead screw; 47. a fourth rotation pin; 48. and a third screw rod.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Examples
As shown in fig. 1-6, the present invention provides a pipeline cleaning device for sewage treatment, comprising a sewage pipe body 1, a driving assembly 2, a cleaning assembly 3 and a pulling assembly 4, wherein the driving assembly 2 and the pulling assembly 4 are respectively disposed at two ends of the sewage pipe body 1, the cleaning assembly 3 is disposed inside the sewage pipe body 1, the driving assembly 2 comprises a sleeve 21, a fixed frame 24, a servo motor 25, a coupler 26, a transmission pipe 27, a first transmission rod 28, a limit slider 29 and a limit sliding chute 210, the sleeve 21 is slidably sleeved on an outer pipe wall at one end of the sewage pipe body 1, the inner pipe wall at one end of the sleeve 21, which is far away from the sewage pipe body 1, is fixedly connected with the servo motor 25 through the fixed frame 24, an output end of the servo motor 25 is fixedly connected with the transmission pipe 27 through the coupler 26, the first transmission rod 28 is slidably inserted inside the transmission pipe 27, the first transmission rod 28 is inserted into two sides of one end inside the transmission tube 27 and is fixedly connected with a limiting sliding block 29, the inner wall of the transmission tube 27 is provided with a limiting sliding groove 210 corresponding to the limiting sliding block 29, the limiting sliding block 29 is connected inside the limiting sliding groove 210 in a sliding manner, the cleaning assembly 3 comprises a first rotating rod 31, a second rotating rod 32, a first rotating pin 33, a first rotating plate 34, a second rotating plate 35, a third rotating plate 36, a fourth rotating plate 37, a first transmission shaft 38, a second transmission shaft 39, a second rotating pin 310 and a cleaning brush 313, the first rotating rod 31 is rotatably connected with the second rotating rod 32 through the first rotating pin 33, the first rotating plate 34, the second rotating plate 35, the third rotating plate 36 and the fourth rotating plate 37 are sequentially arranged between the first rotating rod 31 and the second rotating rod 32, one of the first rotating rod 31 and one end of the first transmission rod 28, which is far away from the transmission tube 27, are rotatably connected, the first rotating plate 34 and the second rotating plate 35 are fixedly sleeved on the rod wall of the first rotating rod 31, the third rotating plate 36 and the fourth rotating plate 37 are fixedly sleeved on the rod wall of the second rotating rod 32, a plurality of first transmission shafts 38 are inserted into the plate walls of the first rotating plate 34 and the second rotating plate 35 in an equidistant sliding mode, a plurality of second transmission shafts 39 are inserted into the plate walls of the third rotating plate 36 and the fourth rotating plate 37 in an equidistant sliding mode, the first transmission shafts 38 and the second transmission shafts 39 are rotatably connected through second rotating pins 310, a plurality of cleaning brushes 313 are arranged on the plate walls of the excircle sides of the first rotating plate 34, the second rotating plate 35, the third rotating plate 36 and the fourth rotating plate 37 in an equidistant mode, and the pulling assembly 4 comprises a pipe hoop 41, a second wing plate 42, a second locking bolt 43, a first screw rod 44, a third rotating pin 45, a second locking bolt 43, a second locking bolt 44 and a second rotating pin 310, Second lead screw 46, fourth commentaries on classics round pin 47 and third lead screw 48 constitute, the ferrule 41 is provided with two, two the ferrule 41 symmetry cup joints on the outer pipe wall of sewage body 1, and two equal fixedly connected with second wing 42 on the outer pipe wall of the adjacent one end of ferrule 41, adjacent two through second locking bolt 43 fixed connection between the second wing 42, first lead screw 44 sets up the inside one end that is close to ferrule 41 in sewage body 1, the top of first lead screw 44 is provided with second lead screw 46, the top of second lead screw 46 is provided with third lead screw 48, all rotate through third commentaries on classics round pin 45 between first lead screw 44 and the second lead screw 46 and between second lead screw 46 and the third lead screw 48 and connect, the third lead screw 48 is kept away from the one end of third commentaries on classics round pin 45 and is rotated with second dwang 32 and is connected, the one end that third commentaries on classics round pin 45 was kept away from to first lead screw 44 passes ferrule 41, and the first lead screw 44 is in threaded connection with the pipe clamp 41.
The pipe wall of the two sides of the sleeve 21 is symmetrically provided with grooves, the outer pipe wall of the sleeve 21 is fixedly connected with four first wing plates 22 at positions corresponding to the grooves, the first wing plates 22 are symmetrically arranged at the two sides of the grooves, and the two adjacent first wing plates 22 are connected through a first locking bolt 23, so that the driving assembly 2 is conveniently installed and sleeved on the sewage pipe body 1.
The servo motor 25 is electrically connected with an external power supply through a PLC (programmable logic controller), and the TB6600 type PLC can control the rotating speed and the steering of the servo motor 25, so that the device can be driven normally.
The shaft walls of the ends, far away from the second rotating pin 310, of the first transmission shaft 38 and the second transmission shaft 39 are fixedly connected with limiting plates 311, and the limiting plates 311 can prevent the first transmission shaft 38 and the second transmission shaft 39 from being separated from the rotating plate.
The plurality of elastic springs 312 are fixedly connected to the plate wall on the inner circle side of the cleaning brush 313, one ends of the plurality of elastic springs 312, which are far away from the cleaning brush 313, are fixedly connected to the plate walls on the outer circle sides of the first rotating plate 34, the second rotating plate 35, the third rotating plate 36 and the fourth rotating plate 37 which are opposite to each other, and the elastic springs 312 can provide elastic force for the cleaning brush 313, so that the cleaning brush 313 can be tightly attached to the inner pipe wall of the sewage pipe body 1.
Specifically, when the sewage treatment device is used, the pulling assembly 4 and the cleaning assembly 3 sequentially penetrate through the sewage pipe body 1, and the first screw rod 44 and the second screw rod 46, the second screw rod 46 and the third screw rod 48, the third screw rod 48 and the second rotating rod 32, the second rotating rod 32 and the first rotating rod 31, and the first rotating rod 31 and the first driving rod 28 are hinged, so that the pulling assembly 4 and the cleaning assembly 3 in the device can penetrate through a bent pipeline, the sleeve 21 is sleeved on the outer pipe wall of the sewage pipe body 1, the distance between the two first wing plates 22 is reduced by using the first locking bolt 23, the sleeve 21 is tightly sleeved on the outer pipe wall of one end of the sewage pipe body 1, the pipe hoop 41 is in threaded connection with the first screw rod 44 on one end of the sewage pipe body 1, the second wing plate 42 is connected by using the second locking bolt 43, the second wing plate 42 makes the two pipe hoops 41 tightly hooped on the pipe wall of the sewage pipe body 1, the installation of the device is completed, the servo motor 25 is controlled to start by a TB6600 type PLC controller, the drive pipe 27 can be driven to rotate when the servo motor 25 is started, the drive pipe 27 can drive the first drive rod 28 to rotate by the limit slide block 29 arranged in the limit slide groove 210 when rotating, the first drive rod 28 can drive the first drive rod 31 to rotate when rotating, the first drive rod 31 can drive the first rotating plate 34 and the second rotating plate 35 to rotate when rotating, the first rotating plate 34 and the second rotating plate 35 can drive the first drive shaft 38 to rotate when rotating, the first drive shaft 38 can drive the second drive shaft 39 to rotate when rotating, the second drive shaft 39 can drive the third rotating plate 36 and the fourth rotating plate 37 to rotate inside the sewage pipe body 1 when rotating, first rotating plate 34, second rotating plate 35, third rotating plate 36 and fourth rotating plate 37 can drive clearance brush 313 and clear up the inner wall of sewage body 1 when rotating, second rotating plate 32 can drive third lead screw 48 and rotate when rotating, third lead screw 48 can drive second lead screw 46 and rotate, second lead screw 46 drives first lead screw 44 and rotates, first lead screw 44 can be along the vertical downstream of ferrule 41 when rotating, thereby make pulling subassembly 4 drive the whole inner wall of clearance subassembly 3 along sewage body 1 move towards the direction of ferrule 41, thereby completion that can have is to the clearance of sewage pipe.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The pipeline cleaning device for sewage treatment is characterized by comprising a sewage pipe body (1), a driving assembly (2), a cleaning assembly (3) and a pulling assembly (4), wherein the driving assembly (2) and the pulling assembly (4) are respectively arranged at two ends of the sewage pipe body (1), and the cleaning assembly (3) is arranged inside the sewage pipe body (1);
the driving assembly (2) comprises a sleeve (21), a fixed rack (24), a servo motor (25), a coupler (26), a transmission pipe (27), a first transmission rod (28), a limiting sliding block (29) and a limiting sliding groove (210), the sleeve (21) is sleeved on the outer pipe wall of one end of the sewage pipe body (1) in a sliding mode, the servo motor (25) is fixedly connected onto the inner pipe wall of one end, far away from the sewage pipe body (1), of the sleeve (21), the output end of the servo motor (25) is fixedly connected with the transmission pipe (27) through the coupler (26), the first transmission rod (28) is inserted into the transmission pipe (27) in a sliding mode, the limiting sliding grooves (210) which are matched with the limiting sliding blocks (29) are formed in the inner wall of the transmission pipe (27) correspondingly to the limiting sliding blocks (29), the limiting sliding block (29) is connected inside the limiting sliding groove (210) in a sliding manner;
the cleaning assembly (3) comprises a first rotating rod (31), a second rotating rod (32), a first rotating pin (33), a first rotating plate (34), a second rotating plate (35), a third rotating plate (36), a fourth rotating plate (37), a first transmission shaft (38), a second transmission shaft (39), a second rotating pin (310) and a cleaning brush (313), wherein the first rotating rod (31) is rotatably connected with the second rotating rod (32) through the first rotating pin (33), the first rotating rod (34), the second rotating plate (35), the third rotating plate (36) and the fourth rotating plate (37) are sequentially arranged between the first rotating rod (31) and the second rotating rod (32), one end of the first rotating rod (31) and the first transmission rod (28) far away from the transmission pipe (27) is rotatably connected, and the first rotating plate (34) and the second rotating plate (35) are fixedly sleeved on the rod wall of the first rotating rod (31), the third rotating plate (36) and the fourth rotating plate (37) are fixedly sleeved on the rod wall of the second rotating rod (32), a plurality of first transmission shafts (38) are inserted into the plate walls of the first rotating plate (34) and the second rotating plate (35) in an equidistant sliding mode, a plurality of second transmission shafts (39) are inserted into the plate walls of the third rotating plate (36) and the fourth rotating plate (37) in an equidistant sliding mode, the first transmission shafts (38) and the second transmission shafts (39) are rotatably connected through second rotating pins (310), and a plurality of cleaning brushes (313) are arranged on the plate walls on the outer circle sides of the first rotating plate (34), the second rotating plate (35), the third rotating plate (36) and the fourth rotating plate (37) in an equidistant sliding mode;
the pulling assembly (4) comprises pipe hoops (41), second wing plates (42), second locking bolts (43), a first screw rod (44), a third rotating pin (45), a second screw rod (46), a fourth rotating pin (47) and a third screw rod (48), wherein the number of the pipe hoops (41) is two, the two pipe hoops (41) are symmetrically sleeved on the outer pipe wall of the sewage pipe body (1), the second wing plates (42) are fixedly connected on the outer pipe wall of the adjacent ends of the two pipe hoops (41), the adjacent two second wing plates (42) are fixedly connected through the second locking bolts (43), the first screw rod (44) is arranged at one end, close to the pipe hoops (41), in the sewage pipe body (1), the second screw rod (46) is arranged above the first screw rod (44), the third screw rod (48) is arranged above the second screw rod (46), all rotate round pin (45) through the third between first lead screw (44) and second lead screw (46) and between second lead screw (46) and third lead screw (48) and rotate and be connected, the one end that third round pin (45) was kept away from in third lead screw (48) rotates with second dwang (32) to be connected, the one end that third round pin (45) was kept away from in first lead screw (44) passes ferrule (41), just first lead screw (44) and ferrule (41) threaded connection.
2. The pipeline cleaning device for sewage treatment according to claim 1, wherein the pipe walls at two sides of the sleeve (21) are symmetrically provided with slots, four first wing plates (22) are fixedly connected to the outer pipe wall of the sleeve (21) at positions corresponding to the slots, the first wing plates (22) are symmetrically arranged at two sides of the slots, and two adjacent first wing plates (22) are connected through a first locking bolt (23).
3. The pipeline cleaning device for sewage treatment according to claim 1, wherein the servo motor (25) is electrically connected with an external power supply through a PLC controller.
4. The pipeline cleaning device for sewage treatment according to claim 1, wherein a limiting plate (311) is fixedly connected to the shaft wall of the end of the first transmission shaft (38) and the second transmission shaft (39) far away from the second rotating pin (310).
5. The pipeline cleaning device for sewage treatment according to claim 1, wherein a plurality of elastic springs (312) are fixedly connected to the plate wall on the inner circle side of the cleaning brush (313), and one ends of the plurality of elastic springs (312) far away from the cleaning brush (313) are fixedly connected to the plate walls on the outer circle sides of the first rotating plate (34), the second rotating plate (35), the third rotating plate (36) and the fourth rotating plate (37) which are opposite to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011266743.5A CN112427422B (en) | 2020-11-13 | 2020-11-13 | A pipeline cleaning device for sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011266743.5A CN112427422B (en) | 2020-11-13 | 2020-11-13 | A pipeline cleaning device for sewage treatment |
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| Publication Number | Publication Date |
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| CN112427422A true CN112427422A (en) | 2021-03-02 |
| CN112427422B CN112427422B (en) | 2021-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011266743.5A Active CN112427422B (en) | 2020-11-13 | 2020-11-13 | A pipeline cleaning device for sewage treatment |
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| Country | Link |
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| CN (1) | CN112427422B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113123444A (en) * | 2021-04-19 | 2021-07-16 | 上海信立生态环境工程有限公司 | Dredging and sewage discharging vehicle and pipeline dredging and sewage discharging method |
| CN114042702A (en) * | 2022-01-14 | 2022-02-15 | 南通仁源节能环保科技有限公司 | Be used for marine oil pipe surface debris cleaning device |
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| DE3419811C1 (en) * | 1984-05-26 | 1985-09-05 | Günter Dipl.-Ing. 2000 Hamburg Kupczik | Apparatus for cleaning sewer ducts |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113123444A (en) * | 2021-04-19 | 2021-07-16 | 上海信立生态环境工程有限公司 | Dredging and sewage discharging vehicle and pipeline dredging and sewage discharging method |
| CN114042702A (en) * | 2022-01-14 | 2022-02-15 | 南通仁源节能环保科技有限公司 | Be used for marine oil pipe surface debris cleaning device |
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| Publication number | Publication date |
|---|---|
| CN112427422B (en) | 2021-11-05 |
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