CN112845418A - Portable hydraulic engineering pipeline dredging equipment and dredging method - Google Patents
Portable hydraulic engineering pipeline dredging equipment and dredging method Download PDFInfo
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- CN112845418A CN112845418A CN202011539453.3A CN202011539453A CN112845418A CN 112845418 A CN112845418 A CN 112845418A CN 202011539453 A CN202011539453 A CN 202011539453A CN 112845418 A CN112845418 A CN 112845418A
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- box body
- worm
- pipeline
- shaft
- hydraulic engineering
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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
- B08B9/0433—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 provided exclusively with fluid jets as cleaning tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention relates to the technical field of hydraulic engineering and discloses portable hydraulic engineering pipeline dredging equipment and a dredging method, wherein the portable hydraulic engineering pipeline dredging equipment comprises a box body, an auger bit and two high-pressure spray heads, a motor is fixedly installed on the inner wall of one side of the box body, one end of a worm is fixedly connected to an output shaft of the motor, one end of the auger bit is fixedly connected with the other end of the worm, one side of the high-pressure spray heads is fixedly connected with one end of a rotating shaft, the box body is rotatably sleeved on the outer sides of the two rotating shafts, and the other ends of the two rotating shafts extend into the box body and are fixedly provided with first bevel. The device is reasonable in design, drills pipeline blockages by driving the spiral drill to rotate at a high speed, drives the high-pressure spray head to rotate in a reciprocating mode to comprehensively flush the blocked impurities, and simultaneously drives the dredging device to move in the pipeline, so that different positions in the pipeline are dredged, and the pipeline dredging efficiency is improved.
Description
Technical Field
The invention relates to the technical field of hydraulic engineering, in particular to portable hydraulic engineering pipeline dredging equipment and a dredging method.
Background
At present, different types of hydraulic buildings such as dams, dikes, spillways, water gates, water inlets, channels, transition troughs, rafts, fishways and the like need to be built for hydraulic engineering so as to achieve the aims. The water conservancy pipeline refers to a pipeline in the construction of water conservancy projects. The main of water conservancy pipeline mediation is some surface waters, and surface water residue is many, blocks up water conservancy pipeline easily, consequently when carrying out water conservancy pipeline intercommunication, the use of mediation equipment is very necessary.
Through retrieval, application publication No. CN201921861223.1 discloses a water conservancy pipeline dredging device, however, the inventor finds that the prior art has some problems when the prior art is realized; 1. the device has short actual length, is difficult to reasonably dredge long-distance pipelines, and has poor actual working effect; 2. the device is difficult to reasonably control corresponding equipment when meeting with a longer pipeline, is difficult to comprehensively and quickly dredge the pipeline, and can move in the pipeline only by means of external thrust due to poor moving capability of the device in the pipeline, so that the use effect is poor, and the actual working effect is poor; 3. the device can not be to reasonable washing of pipeline after the mediation for pipeline inner wall after the mediation still has the residue of corresponding impurity, and the actual work effect is not good, therefore we have provided a portable hydraulic engineering pipeline mediation equipment and mediation method and are used for solving above-mentioned problem.
Disclosure of Invention
The invention aims to solve the defects that the existing hydraulic engineering pipeline dredging equipment is low in dredging efficiency, difficult to dredge a pipeline comprehensively and quickly, poor in moving capability in the pipeline and poor in using effect when in use, and provides portable hydraulic engineering pipeline dredging equipment and a dredging method.
In order to achieve the purpose, the invention adopts the following technical scheme:
a portable hydraulic engineering pipeline dredging device comprises a box body, an auger and two high-pressure nozzles, wherein a motor is fixedly arranged on the inner wall of one side of the box body, one end of a worm is fixedly connected onto an output shaft of the motor, one end of the auger is fixedly connected with the other end of the worm, one end of a rotating shaft is fixedly connected to one side of the high-pressure nozzles, the box body is rotatably sleeved outside two rotating shafts, the other ends of the two rotating shafts extend into the box body and are fixedly provided with first bevel gears, two mounting grooves are respectively formed in the inner walls of the front side and the rear side of the box body, the two mounting grooves on the same axis are rotatably provided with the same connecting shaft, two second bevel gears are respectively fixedly arranged on the two connecting shafts and are respectively meshed with the corresponding first bevel gears, two transverse shafts are rotatably arranged on, two worm wheels all mesh with the worm mutually, and the equal fixed mounting in two worm wheel front sides has a round axle, the fixed cover in the connecting axle outside has connect the connecting plate, and the connecting hole is opened to the connecting plate front side, two round axles respectively with the connecting hole left and right sides inner wall activity butt that corresponds, bottom half one side fixed mounting has the framework, rotates on the inner wall of both sides around the framework and installs same transmission shaft, and the equal fixed mounting in both ends has the drive wheel around the transmission shaft, is located on the connecting axle of below and the equal fixed mounting on the transmission shaft have a band pulley, and the transmission is installed.
Preferably, one side of the high-pressure nozzle is communicated with one end of a high-pressure water pipe, and the other end of the high-pressure water pipe penetrates through the box body and extends to the other side of the box body, so that flushing water is conveniently guided into the high-pressure nozzle.
Preferably, the outer side of the rotating shaft is fixedly sleeved with a limiting shaft sleeve, the limiting shaft sleeve is movably abutted against one side of the box body, and the rotating shaft is axially limited.
Preferably, a circular hole is formed in one side of the box body, and the worm is rotatably installed in the circular hole, so that the worm can be conveniently operated and can be rotatably positioned.
Preferably, the equal fixed mounting in both sides has the backup pad around the bottom half, and one side that two backup pads are close to each other rotates installs same back shaft, and the equal fixed mounting of mausoleum has the supporting wheel around the back shaft, guarantees to the support balance of box and does benefit to and remove the box.
Preferably, the transmission shaft is fixedly sleeved with two limiting rings, and the two limiting rings are movably abutted to the inner walls of the front side and the rear side of the frame body respectively to limit the transmission shaft axially.
Preferably, a transverse plate is fixedly mounted on the inner wall of the rear side of the box body, a vertical plate is fixedly mounted on the front side of the transverse plate, and the vertical plate is rotatably sleeved on the outer sides of the two transverse shafts to rotatably position the two transverse shafts.
The invention also provides a hydraulic engineering pipeline dredging method, which comprises the following steps:
s1: moving the box body to a designated position by rolling the support wheels on the ground, and then placing the box body into the apparatus;
s2: the motor and the two high-pressure nozzles are started, the output shaft of the motor drives the worm to rotate at a high speed, the worm drives the spiral drill to rotate at a high speed, the blockage sundries are drilled by the high-speed rotation of the spiral drill, the high-pressure nozzles are used for flushing the blockage impurities by leading the high-pressure water pipes into the water pressurization nozzles, the worm rotates and simultaneously drives the two worm wheels to rotate, the two worm wheels drive the two circular shafts to do circular shaft motion by taking the corresponding transverse shafts as axes, the two circular shafts respectively drive the two connecting shafts to do reciprocating rotation by matching with the corresponding connecting holes, the two connecting shafts drive the two second bevel gears to do reciprocating rotation, the two second bevel gears drive the two first bevel gears to do reciprocating rotation by the corresponding rotating shafts, thereby the inside of the pipeline is flushed comprehensively, and the transverse shaft positioned below drives the transmission shaft to rotate clockwise by the transmission between the two, the transmission shaft drives the two driving wheels to rotate clockwise, so that the driving wheels roll in the pipeline and drive the box body to move in the pipeline, different positions in the pipeline are dredged, and the dredging efficiency is improved;
s3: after the dredging is finished, the driving wheel is driven to rotate reversely by controlling the motor to reversely rotate, so that the box body is driven to move reversely, the box body is taken out, the motor and the high-pressure sprayer are closed, and the pipeline dredging work is finished.
Compared with the prior art, the invention provides portable hydraulic engineering pipeline dredging equipment and a dredging method, and the portable hydraulic engineering pipeline dredging equipment and the dredging method have the following beneficial effects:
(1) drilling the pipeline blockage by driving the spiral drill to rotate at a high speed, and spraying high-pressure water through a high-pressure nozzle to flush the blockage impurities;
(2) the high-pressure spray head is driven to rotate in a reciprocating manner, so that the pipeline can be comprehensively and quickly washed;
(3) the dredging device moves in the pipeline by driving the roller to rotate while the pipeline dredging work is carried out, so that the device forms an organic whole, and the dredging device can dredge different positions in the pipeline to improve the pipeline dredging efficiency.
The device is reasonable in design, drills pipeline blockages by driving the spiral drill to rotate at a high speed, drives the high-pressure spray head to rotate in a reciprocating mode to comprehensively flush the blocked impurities, and simultaneously drives the dredging device to move in the pipeline, so that different positions in the pipeline are dredged, and the pipeline dredging efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of a portable hydraulic engineering pipeline dredging device provided by the invention;
fig. 2 is a sectional view of a portable hydraulic engineering pipeline dredging device provided by the invention;
fig. 3 is a schematic structural diagram of a part a of the portable hydraulic engineering pipeline dredging device provided by the invention;
FIG. 4 is a schematic structural diagram of a section B-B of the portable hydraulic engineering pipeline dredging device provided by the invention;
fig. 5 is a schematic structural diagram of a part C of the portable hydraulic engineering pipeline dredging device provided by the invention.
In the figure: 1. a box body; 2. a screw drill; 3. a high pressure spray head; 4. a high pressure water pipe; 5. a rotating shaft; 6. a drive wheel; 7. a support wheel; 8. a motor; 9. a worm; 10. a horizontal axis; 11. a worm gear; 12. a connecting shaft; 13. a connecting plate; 14. connecting holes; 15. a frame body; 16. a drive shaft; 17. a pulley; 18. a belt; 19. a limiting shaft sleeve; 20. a vertical plate; 21. a first bevel gear; 22. a second bevel gear; 23. a transverse plate; 24. a limiting ring; 25. a support plate; 26. a circular shaft; 27. a circular hole; 28. and supporting the shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-5, a portable hydraulic engineering pipeline dredging device comprises a box body 1, an auger 2 and two high-pressure nozzles 3, wherein a motor 8 is fixedly arranged on the inner wall of one side of the box body 1, one end of a worm 9 is fixedly connected to an output shaft of the motor 8, one end of the auger 2 is fixedly connected with the other end of the worm 9, one end of a rotating shaft 5 is fixedly connected to one side of the high-pressure nozzles 3, the box body 1 is rotatably sleeved outside the two rotating shafts 5, the other ends of the two rotating shafts 5 extend into the box body 1 and are fixedly provided with first bevel gears 21, two mounting grooves are respectively formed in the inner walls of the front side and the rear side of the box body 1, the same connecting shaft 12 is rotatably mounted in the two mounting grooves on the same axis, second bevel gears 22 are respectively fixedly mounted on, rotate on the inner wall of box 1 rear side and install two cross axles 10, the equal fixed mounting in two cross axles 10 front ends has worm wheel 11, two worm wheel 11 all mesh with worm 9 mutually, the equal fixed mounting in two worm wheel 11 front sides has round axle 26, the fixed connecting plate 13 that has cup jointed in the connecting axle 12 outside, connecting plate 13 front side is opened and is equipped with connecting hole 14, two round axles 26 respectively with the 14 left and right sides inner wall activity butt of connecting hole that correspond, box 1 bottom one side fixed mounting has framework 15, rotate on the both sides inner wall around framework 15 and install same transmission shaft 16, the equal fixed mounting in both ends has drive wheel 6 around transmission shaft 16, equal fixed mounting has band pulley 17 on connecting axle 12 and the transmission shaft 16 that are located the below, it installs same belt 18 to rotate.
In this embodiment, one side of the high pressure nozzle 3 is communicated with one end of the high pressure water pipe 4, and the other end of the high pressure water pipe 4 penetrates through the box body 1 and extends to the other side of the box body 1, so that the flushing water is conveniently guided into the high pressure nozzle 3.
In this embodiment, 5 outside fixed the cup jointing of pivot has spacing axle sleeve 19, and spacing axle sleeve 19 carries out the axial with 1 one side activity butt of box, the pivot 5 spacing.
In this embodiment, a circular hole 27 is formed in one side of the box body 1, and the worm 9 is rotatably installed in the circular hole 27, so that the worm 9 can be conveniently operated and the worm 9 can be rotatably positioned.
In this embodiment, the equal fixed mounting in both sides has backup pad 25 around the box 1 bottom, and one side that two backup pads 25 are close to each other rotates installs same back shaft 28, and the equal fixed mounting of mausoleum end has supporting wheel 7 around the back shaft 28, guarantees to the support balance of box 1 and does benefit to and remove box 1.
In this embodiment, the outer side of the transmission shaft 16 is fixedly sleeved with two limiting rings 24, and the two limiting rings 24 are respectively movably abutted against the inner walls of the front side and the rear side of the frame body 15 to axially limit the transmission shaft 16.
In this embodiment, the inner wall of the rear side of the box body 1 is fixedly provided with a transverse plate 23, the front side of the transverse plate 23 is fixedly provided with a vertical plate 20, and the vertical plate 20 is rotatably sleeved on the outer sides of the two transverse shafts 10 to rotatably position the two transverse shafts 10.
The embodiment also provides a hydraulic engineering pipeline dredging method, which comprises the following steps:
s1: moving the case 1 to a designated position by rolling the support wheels 7 on the ground, and then putting the case 1 into the apparatus;
s2: the motor 8 and the two high-pressure nozzles 3 are started, the output shaft of the motor 8 drives the worm 9 to rotate at a high speed, the worm 9 drives the spiral drill 2 to rotate at a high speed, the blocked impurities are drilled by the high-speed rotation of the spiral drill 2, the high-pressure nozzles 3 lead the high-pressure water pipe 4 into the water pressurizing nozzles to flush the blocked impurities, the worm 9 drives the two worm wheels 11 to rotate while rotating, the two worm wheels 11 drive the two circular shafts 26 to do circular shaft motion by taking the corresponding transverse shaft 10 as an axis, the two circular shafts 26 respectively drive the two connecting shafts 12 to rotate in a reciprocating manner by matching with the corresponding connecting holes 14, the two connecting shafts 12 drive the two second bevel gears 22 to rotate in a reciprocating manner, the two second bevel gears 22 drive the two first bevel gears 21 to rotate in a reciprocating manner, the two high-pressure nozzles 3 are driven by the corresponding rotating shafts 5, meanwhile, the transverse shaft 10 positioned below drives the transmission shaft 16 to rotate clockwise through transmission between the two belt wheels 17 and the belt 18, and the transmission shaft 16 drives the two driving wheels 6 to rotate clockwise, so that the driving wheels 6 roll in the pipeline and drive the box body 1 to move in the pipeline, different positions in the pipeline are dredged, and the dredging efficiency is improved;
s3: after the mediation is accomplished, drive 6 antiport of drive wheel through the reversal of control motor 8 to drive 1 antiport of box, thereby take out the pipeline with box 1, then close motor 8 and high pressure nozzle 3, thereby end the pipeline mediation work.
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.
Claims (8)
1. A portable hydraulic engineering pipeline dredging device comprises a box body (1), an auger (2) and two high-pressure nozzles (3), and is characterized in that a motor (8) is fixedly installed on the inner wall of one side of the box body (1), one end of a worm (9) is fixedly connected to an output shaft of the motor (8), one end of the auger (2) is fixedly connected with the other end of the worm (9), one side of the high-pressure nozzles (3) is fixedly connected with one end of a rotating shaft (5), the box body (1) is rotatably sleeved outside the two rotating shafts (5), the other ends of the two rotating shafts (5) extend into the box body (1) and are fixedly provided with first bevel gears (21), two installation grooves are respectively formed in the inner walls of the front side and the rear side of the box body (1), the two installation grooves on the same axis are rotatably provided with the same connecting shaft (12), and second bevel gears (22) are, two second bevel gears (22) are respectively meshed with corresponding first bevel gears (21), two transverse shafts (10) are rotatably arranged on the inner wall of the rear side of the box body (1), worm wheels (11) are fixedly arranged at the front ends of the two transverse shafts (10), the two worm wheels (11) are respectively meshed with the worm (9), round shafts (26) are fixedly arranged at the front sides of the two worm wheels (11), connecting plates (13) are fixedly sleeved on the outer sides of the connecting shafts (12), connecting holes (14) are formed in the front sides of the connecting plates (13), the two round shafts (26) are respectively movably abutted against the inner walls of the left side and the right side of the corresponding connecting holes (14), a frame body (15) is fixedly arranged on one side of the bottom of the box body (1), the same transmission shaft (16) is rotatably arranged on the inner walls of the front side and the rear side of the frame body (15), driving wheels (6) are fixedly arranged at the front end and the rear end of, the two belt wheels (17) are provided with the same belt (18) in a transmission way.
2. The portable hydraulic engineering pipeline dredging device according to claim 1, wherein one side of the high-pressure nozzle (3) is communicated with one end of a high-pressure water pipe (4), and the other end of the high-pressure water pipe (4) penetrates through the tank body (1) and extends to the other side of the tank body (1).
3. The portable hydraulic engineering pipeline dredging device according to claim 1, wherein a limiting shaft sleeve (19) is fixedly sleeved on the outer side of the rotating shaft (5), and the limiting shaft sleeve (19) is movably abutted against one side of the box body (1).
4. The portable hydraulic engineering pipeline dredging device according to claim 1, wherein a circular hole (27) is formed in one side of the box body (1), and the worm (9) is rotatably installed in the circular hole (27).
5. The portable hydraulic engineering pipeline dredging device according to claim 1, wherein supporting plates (25) are fixedly mounted on the front side and the rear side of the bottom of the box body (1), one side, close to each other, of each of the two supporting plates (25) is rotatably provided with one supporting shaft (28), and supporting wheels (7) are fixedly mounted on the front edge and the rear edge of each supporting shaft (28).
6. The portable hydraulic engineering pipeline dredging device according to claim 1, wherein two limiting rings (24) are fixedly sleeved on the outer side of the transmission shaft (16), and the two limiting rings (24) are movably abutted to the inner walls of the front side and the rear side of the frame body (15) respectively.
7. The portable hydraulic engineering pipeline dredging device according to claim 1, wherein a transverse plate (23) is fixedly mounted on the inner wall of the rear side of the box body (1), a vertical plate (20) is fixedly mounted on the front side of the transverse plate (23), and the vertical plate (20) is rotatably sleeved on the outer sides of the two transverse shafts (10).
8. A hydraulic engineering pipeline dredging method is characterized by comprising the following steps:
s1: moving the box body (1) to a designated position by rolling the supporting wheels (7) on the ground, and then putting the box body (1) into the equipment;
s2: the motor (8) and the two high-pressure nozzles (3) are started, an output shaft of the motor (8) drives the worm (9) to rotate at a high speed, the worm (9) drives the spiral drill (2) to rotate at a high speed, blocked impurities are drilled through the high-speed rotation of the spiral drill (2), the high-pressure nozzles (3) enable water pressurized nozzles led in by the high-pressure water pipes (4) to flush the blocked impurities, the worm (9) rotates and simultaneously drives the two worm wheels (11) to rotate, the two worm wheels (11) drive the two circular shafts (26) to perform circular shaft motion based on the corresponding transverse shaft (10) as an axis, the two circular shafts (26) respectively drive the two connecting shafts (12) to rotate in a reciprocating mode through matching with the corresponding connecting holes (14), the two connecting shafts (12) drive the two second bevel gears (22) to rotate in a reciprocating mode, the two second bevel gears (22) drive the two first bevel, the two first bevel gears (21) drive the two high-pressure nozzles (3) to rotate in a reciprocating manner through the corresponding rotating shafts (5), so that the interior of the pipeline is comprehensively washed, meanwhile, the transverse shaft (10) positioned below drives the transmission shaft (16) to rotate clockwise through transmission between the two belt wheels (17) and the belt (18), the transmission shaft (16) drives the two driving wheels (6) to rotate clockwise, so that the driving wheels (6) roll in the pipeline and drive the box body (1) to move in the pipeline, and therefore different positions in the pipeline are dredged, and the dredging efficiency is improved;
s3: after the dredging is finished, the driving wheel (6) is driven to rotate reversely through the control motor (8), so that the box body (1) is driven to move reversely, the pipeline of the box body (1) is taken out, then the motor (8) and the high-pressure sprayer (3) are closed, and the pipeline dredging work is finished.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011539453.3A CN112845418A (en) | 2020-12-23 | 2020-12-23 | Portable hydraulic engineering pipeline dredging equipment and dredging method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011539453.3A CN112845418A (en) | 2020-12-23 | 2020-12-23 | Portable hydraulic engineering pipeline dredging equipment and dredging method |
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| CN112845418A true CN112845418A (en) | 2021-05-28 |
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| CN202011539453.3A Pending CN112845418A (en) | 2020-12-23 | 2020-12-23 | Portable hydraulic engineering pipeline dredging equipment and dredging method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114618842A (en) * | 2022-02-15 | 2022-06-14 | 安徽众联建设工程有限公司 | Municipal pipeline dredging mechanism with pipeline protection effect |
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| CN211888301U (en) * | 2020-03-16 | 2020-11-10 | 王志涛 | Crude oil pipeline congeals pipe and removes stifled pull throughs |
| CN111889462A (en) * | 2020-07-23 | 2020-11-06 | 曹玉正 | Hydraulic engineering pipeline dredging device and using method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114618842A (en) * | 2022-02-15 | 2022-06-14 | 安徽众联建设工程有限公司 | Municipal pipeline dredging mechanism with pipeline protection effect |
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