CN113931269A - Auxiliary device convenient for municipal sewer to drain water with higher speed - Google Patents

Auxiliary device convenient for municipal sewer to drain water with higher speed Download PDF

Info

Publication number
CN113931269A
CN113931269A CN202111084410.5A CN202111084410A CN113931269A CN 113931269 A CN113931269 A CN 113931269A CN 202111084410 A CN202111084410 A CN 202111084410A CN 113931269 A CN113931269 A CN 113931269A
Authority
CN
China
Prior art keywords
sewer
fixedly connected
pipe
shell
drainage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111084410.5A
Other languages
Chinese (zh)
Inventor
郑国初
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zheng Guochu
Original Assignee
Zheng Guochu
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zheng Guochu filed Critical Zheng Guochu
Priority to CN202111084410.5A priority Critical patent/CN113931269A/en
Publication of CN113931269A publication Critical patent/CN113931269A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F1/00Methods, systems, or installations for draining-off sewage or storm water
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F3/00Sewer pipe-line systems
    • E03F3/04Pipes or fittings specially adapted to sewers
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/04Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/0401Gullies for use in roads or pavements
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/04Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/06Gully gratings
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/26Installations for stirring-up sewage

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sewage (AREA)

Abstract

The invention belongs to the technical field of municipal administration, and particularly relates to an auxiliary device for facilitating accelerated drainage of a municipal sewer, which comprises a sewer shell, wherein the bottom of the sewer shell is fixedly connected with a sewer pipeline, a baffle is fixedly connected inside the sewer shell, a U-shaped pipe is arranged between the baffle and the sewer shell, the bent part of the U-shaped pipe is fixedly connected with the side surface of the sewer shell, the bent part of the U-shaped pipe is upward, and one end, positioned outside the sewer shell, of the U-shaped pipe is fixedly connected with a drainage pipe. Auxiliary device is used in drainage with higher speed of municipal administration sewer of being convenient for, not ponding on the road surface, when sewer displacement is less, water enters into sewer pipe through lower casing, and the spiral plate is tangent with sewer pipe inner wall simultaneously, makes the flow of water drive the spiral plate and rotates to make the spiral plate drive the pivot and rotate, make the pivot drive the connecting rod and dial the board and rotate, rotate through dialling the board and stir the rivers that flow, make rivers rock the flow, make the flowing water among the sewer pipe rock.

Description

Auxiliary device convenient for municipal sewer to drain water with higher speed
Technical Field
The invention belongs to the technical field of municipal administration, and particularly relates to an auxiliary device for facilitating accelerated drainage of a municipal sewer.
Background
The sewer is an urban public facility and refers to a pipeline for discharging sewage and rainwater from a building; also refers to underground channels for removing sewage and rainwater in cities, factories or villages.
However, when heavy rain falls, the drainage speed of the sewer cannot keep up with the rainfall, which causes surface water accumulation, and some areas have thinner sewer pipelines, so that the larger drainage pipeline cannot be replaced due to the limitation of the areas, the drainage is limited, the surface water accumulation is easy to cause, and the surface water accumulation drainage efficiency is low.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides an auxiliary device for facilitating accelerated drainage of a municipal sewer, and solves the problem of low efficiency of drainage of accumulated water on a road surface.
In order to achieve the purpose, the invention provides the following technical scheme: an auxiliary device convenient for accelerated drainage of a municipal sewer comprises a sewer shell, wherein a sewer pipeline is fixedly connected to the bottom of the sewer shell, a baffle is fixedly connected to the inside of the sewer shell, a U-shaped pipe is arranged between the baffle and the sewer shell, the bent part of the U-shaped pipe is fixedly connected with the side surface of the sewer shell, the bent part of the U-shaped pipe is upward, a drain pipe is fixedly connected to one end of the U-shaped pipe, which is positioned on the outer side of the sewer shell, the inner wall of one end of the drain pipe, which is positioned at the joint of the U-shaped pipe, is connected with a rubber baffle through a clamping plate, one end of the clamping plate is fixedly connected with the bottom surface of the rubber baffle, the other end of the clamping plate is fixedly connected with the inner wall of the drain pipe, the rubber baffle is inclined at forty-five degrees, a spring is fixedly connected between the bottom surface of the rubber baffle and the drain pipe, and a spiral strip is fixedly connected with the inner wall of the drain pipe, eight spiral strips are arranged on the inner wall of the drain pipe, the drain pipe is positioned above the sewer pipeline, and the tail end of the drain pipe is positioned above the tail end of the sewer pipeline;
the improved sewer pipe structure is characterized in that a splitter plate is fixedly connected to the lower surface of the inner wall of the sewer pipe and located under the sewer pipe, a fixing frame is fixedly connected to the lower portion of one side of an inner drain pipe of the sewer pipe, a fixing rod is fixedly connected to the side face of the fixing frame, a rotating shaft is movably connected to the surface of the fixing rod, a spiral plate is fixedly connected to the surface of the rotating shaft and tangent to the inner wall of the sewer pipe, a connecting rod is fixedly connected to one side of the spiral plate on the surface of the rotating shaft, a shifting plate is fixedly connected to one end, away from the rotating shaft, of the connecting rod, the shifting plate is tangent to the inner wall of the sewer pipe and is in an elliptic cylinder shape.
Preferably, the top surface of the lower water shell is connected with a sewer cover plate through a hinge, and the sewer cover plate is positioned on the side of the U-shaped pipe.
Preferably, eight spiral plates are arranged on the surface of the rotating shaft, and the eight spiral plates are uniformly arranged on the surface of the rotating shaft.
Preferably, the number of the connecting rods and the number of the shifting plates are six, and the six connecting rods and the six shifting plates are uniformly arranged on the surface of the rotating shaft.
Preferably, the flow distribution plate is triangular, and two ends of the flow distribution plate are tapered and pointed.
Compared with the prior art, the invention has the beneficial effects that:
1. auxiliary device for drainage with higher speed is convenient for municipal administration sewer, not ponding on the road surface, when sewer displacement is less, water enters into sewer pipe through sewer casing, the spiral plate is tangent with sewer pipe inner wall simultaneously, make the flow of water drive the spiral plate and rotate, thereby make the spiral plate drive the pivot and rotate, make the pivot drive the connecting rod and dial the board rotation, rotate through dialling the board and stir the rivers that flow, make rivers rock and flow, make the rivers in the sewer pipe rock, make flowing water flow to sewer pipe inner wall top, thereby make rivers rock, thereby make the flow of rivers with higher speed, thereby avoid the silt deposit in the rivers in sewer pipe, it is more smooth and easy to make the rivers in the sewer pipe lead to, discharge to bigger pipeline in through the sewer pipe.
2. The auxiliary device is convenient for the municipal sewer to accelerate the drainage, when water is accumulated on the road surface, the water is accumulated in the drainage shell, the water flows into the U-shaped pipe, the water flows into the other pipe of the U-shaped pipe gradually, the U-shaped pipe and the drainage pipe are sealed through the rubber baffle and the spring, the water in the other pipe of the U-shaped pipe is stored, when the water in the other pipe of the U-shaped pipe is stored for a certain amount, the pressure is increased, the elastic force of the spring cannot support the water, the rubber baffle is opened, a large amount of water directly flows in the drainage pipe at one time, suction force is caused, a siphon phenomenon is caused, the accumulated water in the drainage shell is extracted, the drainage pipe flows into the tail end of the drainage pipe through the tail end of the drainage pipe above the tail end of the drainage pipe, the water flows into a larger pipe directly, and meanwhile, the water flows in the drainage pipe in a rotary mode through the spiral strips in the circumferential array, therefore, the drainage of water flow is accelerated, accumulated water is drained more quickly, and accumulated water on the road surface is drained more quickly.
3. Be convenient for municipal administration sewer auxiliary device for drainage with higher speed sets up the flow distribution plate that the toper is pointed through triangle-shaped and both ends, makes the sewer pipe water that flows through other places shunt, makes better the flowing out of rivers.
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 view of the complete structure of the present invention;
FIG. 2 is a block diagram of the present invention;
FIG. 3 is a block diagram of the present invention;
fig. 4 is a structural view of the present invention.
Wherein: the sewage treatment device comprises a sewage shell 1, a sewage pipeline 2, a sewage cover plate 3, a hinge 4, a drain pipe 5, a baffle 6, a U-shaped pipe 7, a rubber baffle 8, a clamping plate 9, a spring 10, a spiral strip 11, a flow distribution plate 12, a fixed frame 13, a spiral plate 14, a rotating shaft 15, a shifting plate 16, a connecting rod 17 and a fixing rod 18.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides the following technical solutions: an auxiliary device convenient for accelerating drainage of a municipal sewer comprises a sewer shell 1, a sewer pipeline 2 is fixedly connected at the bottom of the sewer shell 1, a baffle 6 is fixedly connected inside the sewer shell 1, a U-shaped pipe 7 is arranged between the baffle 6 and the sewer shell 1, the bent part of the U-shaped pipe 7 is fixedly connected with the side surface of the sewer shell 1, the bent part of the U-shaped pipe 7 is upward, a drain pipe 5 is fixedly connected at one end of the U-shaped pipe 7, which is positioned at the outer side of the sewer shell 1, the inner wall of one end of the drain pipe 5, which is positioned at the joint of the U-shaped pipe 7, is connected with a rubber baffle 8 through a clamping plate 9, one end of the clamping plate 9 is fixedly connected with the bottom surface of the rubber baffle 8, the other end of the clamping plate 9 is fixedly connected with the inner wall of the drain pipe 5, the rubber baffle 8 is arranged at an inclination of forty-five degrees, a spring 10 is fixedly connected between the bottom surface of the rubber baffle 8 and the drain pipe 5, and a spiral strip 11 is fixedly connected with the inner wall of the drain pipe 5, eight spiral strips 11 are arranged, the eight spiral strips 11 are uniformly and circumferentially arranged on the inner wall of a drain pipe 5, the drain pipe 5 is positioned above a drain pipe 2, the tail end of the drain pipe 5 is positioned above the tail end of the drain pipe 2, when water is accumulated on the road surface, the water is accumulated in a drain shell 1 and flows into a U-shaped pipe 7, the water gradually flows into the other pipe of the U-shaped pipe 7, the U-shaped pipe 7 and the drain pipe 5 are sealed through a rubber baffle plate 8 and a spring 10, the water in the other pipe of the U-shaped pipe 7 is stored, when the water storage channel in the other pipe of the U-shaped pipe 7 is a certain amount, the pressure is increased, the elastic force of the spring 10 cannot support, the rubber baffle plate 8 is opened, a large amount of water directly flows in the drain pipe 5 at one time, suction is caused, and a siphon phenomenon is caused, so that the accumulated water in the drain shell 1 is extracted, and the tail end of the drain pipe 5 is positioned above the tail end of the drain pipe 2, the drainage pipe 5 is made to flow into the end of the sewer pipe 2, so that water flows into a larger pipe directly, meanwhile, water flows in the drainage pipe 5 pass through the spiral strips 11 of the circumferential array, so that the water flows in the drainage pipe 5 in a rotating manner, the drainage of the water flows is accelerated, accumulated water is drained faster, and the accumulated water is drained faster, the lower surface of the inner wall of the sewer pipe 2 is fixedly connected with a splitter plate 12, the splitter plate 12 is positioned under the sewer shell 1, a fixed frame 13 is fixedly connected under one side of the internal drainage pipe 5 of the sewer pipe 2, a fixed rod 18 is fixedly connected to the side surface of the fixed frame 13, a rotating shaft 15 is movably connected to the surface of the fixed rod 18, a spiral plate 14 is fixedly connected to the surface of the rotating shaft 15, the spiral plate 14 is tangent to the inner wall of the sewer pipe 2, a connecting rod 17 is fixedly connected to one side of the spiral plate 14 on the surface of the rotating shaft 15, and a shifting plate 16 is fixedly connected to one end, far away from the rotating shaft 15, of the connecting rod 17, the shifting plate 16 is tangent to the inner wall of the sewer pipeline 2, the shifting plate 16 is elliptic cylinder, when no water is accumulated on the road surface and the drainage of a sewer is small, water enters the sewer pipeline 2 through the sewer casing 1, and simultaneously the spiral plate 14 is tangent to the inner wall of the sewer pipeline 2, so that the spiral plate 14 drives the spiral plate 14 to rotate, the spiral plate 14 drives the rotating shaft 15 to rotate, the rotating shaft 15 drives the connecting rod 17 and the shifting plate 16 to rotate, the flowing water is shifted through the rotation of the shifting plate 16, so that the water flows in a shaking way, the flowing water in the sewer pipeline 2 is shaken, the flowing water flows above the inner wall of the sewer pipeline 2, so that the water flows are shaken, the flowing of the water is accelerated, so that the sediment in the water is prevented from being deposited in the sewer pipeline 2, the water in the sewer pipeline 2 is more smoothly circulated and is discharged into a larger pipeline through the sewer pipeline 2, the top surface of the sewer casing 1 is connected with a sewer cover plate 3 through a hinge 4, sewer apron 3 is located the side of U type pipe 7, make rivers better flow into in the lower water shell 1, spiral plate 14 is provided with eight, and the 14 align to grid of eight spiral plate is on 15 surfaces of pivot, connecting rod 17 is provided with six with group board 16, and six connecting rods 17 with dial 16 align to grid on 15 surfaces of pivot, make the better flow of rivers through dialling board 16, flow distribution plate 12 is the triangle-shaped, and the both ends of flow distribution plate 12 set up to the toper point form, set up flow distribution plate 12 into the toper point form through triangle-shaped and both ends, make the sewer pipe outflow water through other places shunt, make the better outflow of rivers.
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 utility model provides a be convenient for municipal administration sewer auxiliary device for drainage with higher speed, includes lower water shell (1), its characterized in that: the bottom of the launching shell (1) is fixedly connected with a launching pipeline (2), the inside of the launching shell (1) is fixedly connected with a baffle (6), a U-shaped pipe (7) is arranged between the baffle (6) and the launching shell (1), the bent part of the U-shaped pipe (7) is fixedly connected with the side surface of the launching shell (1), the bent part of the U-shaped pipe (7) is upward, one end of the U-shaped pipe (7) positioned at the outer side of the launching shell (1) is fixedly connected with a drainage pipe (5), the inner wall of one end of the drainage pipe (5) positioned at the joint of the U-shaped pipe (7) is connected with a rubber baffle (8) through a clamping plate (9), one end of the clamping plate (9) is fixedly connected with the bottom surface of the rubber baffle (8), the other end of the clamping plate (9) is fixedly connected with the inner wall of the drainage pipe (5), and the rubber baffle (8) is arranged in a forty-five degree inclination manner, a spring (10) is fixedly connected between the bottom surface of the rubber baffle (8) and the drain pipe (5), the inner wall of the drain pipe (5) is fixedly connected with spiral strips (11), eight spiral strips (11) are arranged on the spiral strips (11), the eight spiral strips (11) are uniformly and circumferentially arranged on the inner wall of the drain pipe (5), the drain pipe (5) is positioned above the sewer pipe (2), and the tail end of the drain pipe (5) is positioned above the tail end of the sewer pipe (2);
the lower surface of the inner wall of the sewer pipeline (2) is fixedly connected with a flow distribution plate (12), the flow distribution plate (12) is positioned right below the sewer shell (1), a fixed frame (13) is fixedly connected below one side of the internal drain pipe (5) of the sewer pipeline (2), a fixed rod (18) is fixedly connected to the side surface of the fixed frame (13), the surface of the fixed rod (18) is movably connected with a rotating shaft (15), the surface of the rotating shaft (15) is fixedly connected with a spiral plate (14), the spiral plate (14) is tangent with the inner wall of the sewer pipeline (2), one side of the spiral plate (14) on the surface of the rotating shaft (15) is fixedly connected with a connecting rod (17), one end of the connecting rod (17) far away from the rotating shaft (15) is fixedly connected with a shifting plate (16), the shifting plate (16) is tangent to the inner wall of the sewer pipeline (2), and the shifting plate (16) is elliptic cylindrical.
2. The auxiliary device for facilitating accelerated drainage of municipal sewage according to claim 1, wherein: the top surface of the lower water shell (1) is connected with a sewer cover plate (3) through a hinge (4), and the sewer cover plate (3) is located on the side of the U-shaped pipe (7).
3. The auxiliary device for facilitating accelerated drainage of municipal sewage according to claim 1, wherein: eight spiral plates (14) are arranged on the surface of the rotating shaft (15), and the eight spiral plates (14) are uniformly arranged on the surface of the rotating shaft (15).
4. The auxiliary device for facilitating accelerated drainage of municipal sewage according to claim 1, wherein: the six connecting rods (17) and the six shifting plates (16) are arranged, and the six connecting rods (17) and the six shifting plates (16) are uniformly arranged on the surface of the rotating shaft (15).
5. The auxiliary device for facilitating accelerated drainage of municipal sewage according to claim 1, wherein: the flow distribution plate (12) is triangular, and two ends of the flow distribution plate (12) are conical and pointed.
CN202111084410.5A 2021-09-16 2021-09-16 Auxiliary device convenient for municipal sewer to drain water with higher speed Pending CN113931269A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111084410.5A CN113931269A (en) 2021-09-16 2021-09-16 Auxiliary device convenient for municipal sewer to drain water with higher speed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111084410.5A CN113931269A (en) 2021-09-16 2021-09-16 Auxiliary device convenient for municipal sewer to drain water with higher speed

Publications (1)

Publication Number Publication Date
CN113931269A true CN113931269A (en) 2022-01-14

Family

ID=79276056

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111084410.5A Pending CN113931269A (en) 2021-09-16 2021-09-16 Auxiliary device convenient for municipal sewer to drain water with higher speed

Country Status (1)

Country Link
CN (1) CN113931269A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114719109A (en) * 2022-06-07 2022-07-08 山东海筑暖通工程有限公司 Novel floor heating pipeline assembly convenient to install

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007085320A (en) * 2005-09-16 2007-04-05 Masao Tsuruoka Action keeping siphon unit
CN203375080U (en) * 2013-07-05 2014-01-01 浙江中德实业有限公司 Swirling flow noise reduction flow adjuster pipe
CN106122122A (en) * 2016-08-22 2016-11-16 珲春紫金矿业有限公司 A kind of large aperture flow-controllable siphoning installation
CN206570896U (en) * 2017-01-25 2017-10-20 中国天辰工程有限公司 A kind of siphon helps row's formula catch-basin
CN111945851A (en) * 2020-08-17 2020-11-17 左全清 Drainage device for urban hydraulic engineering road
CN112392120A (en) * 2020-11-18 2021-02-23 深圳市恒利建筑工程有限公司 A novel linear escape canal structure for passing through drainage mat formation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007085320A (en) * 2005-09-16 2007-04-05 Masao Tsuruoka Action keeping siphon unit
CN203375080U (en) * 2013-07-05 2014-01-01 浙江中德实业有限公司 Swirling flow noise reduction flow adjuster pipe
CN106122122A (en) * 2016-08-22 2016-11-16 珲春紫金矿业有限公司 A kind of large aperture flow-controllable siphoning installation
CN206570896U (en) * 2017-01-25 2017-10-20 中国天辰工程有限公司 A kind of siphon helps row's formula catch-basin
CN111945851A (en) * 2020-08-17 2020-11-17 左全清 Drainage device for urban hydraulic engineering road
CN112392120A (en) * 2020-11-18 2021-02-23 深圳市恒利建筑工程有限公司 A novel linear escape canal structure for passing through drainage mat formation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114719109A (en) * 2022-06-07 2022-07-08 山东海筑暖通工程有限公司 Novel floor heating pipeline assembly convenient to install

Similar Documents

Publication Publication Date Title
CN110952643A (en) Urban road rapid drainage structure
CN210216692U (en) A drainage pipe device for municipal works
CN110258759B (en) Be applied to city sewage canal scrubbing purification structure
CN113931269A (en) Auxiliary device convenient for municipal sewer to drain water with higher speed
CN207277485U (en) Sponge city flood drainage system
CN205276320U (en) Automatic switching drain cover's rainwater inspection shaft well lid mechanism
CN107675787A (en) A kind of hydraulic automatism upset bucket preliminary-stage rainwater flow-discarding well device
CN105421494B (en) A kind of rainwater inspection well well cover mechanism of automatic shutter drain cap
CN110725390A (en) Drainage device with high efficiency is avoided road ponding
CN207582224U (en) A kind of water-storing device for sponge city
CN206233346U (en) A kind of road surface drainage structure
CN109469191A (en) A kind of reservoir for being convenient to clean and filtering and its construction and application method
CN209686563U (en) A kind of rain perforaled strainer of pair of early rainwater automatic flow abandoning
CN207919725U (en) Rainwater slagging-off desilting device
CN112726736A (en) A rainwater collection circulation system for ecological garden
CN207633472U (en) A kind of one residential sponge urban water system
CN206616660U (en) A kind of rainwater flow-discarding device
CN113250301B (en) Resin concrete prefabricated linear drainage system
CN216130037U (en) Portable urban road ponding is with drainage flood device
CN211734141U (en) View pond bottom of pool silt piece preprocessing device
CN216339954U (en) Green belt overflow processing structure for sponge city storage regulating system
CN219364847U (en) Rain and sewage diversion pipeline for road
CN219569052U (en) Simple outdoor rainwater collecting system
CN111299277B (en) Cleaning device for aqueduct
CN220035547U (en) Hydraulic engineering dredging device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20220114

RJ01 Rejection of invention patent application after publication