CN112854406A - Drainage pipeline based on waste concrete and preparation method thereof - Google Patents
Drainage pipeline based on waste concrete and preparation method thereof Download PDFInfo
- Publication number
- CN112854406A CN112854406A CN202011598397.0A CN202011598397A CN112854406A CN 112854406 A CN112854406 A CN 112854406A CN 202011598397 A CN202011598397 A CN 202011598397A CN 112854406 A CN112854406 A CN 112854406A
- Authority
- CN
- China
- Prior art keywords
- drainage
- plate
- drainage plate
- bearing
- waste concrete
- 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
Links
- 239000002699 waste material Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 10
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- E03F3/043—Partitioned to allow more than one medium to flow through
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
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 discloses a drainage pipeline based on waste concrete and a preparation method thereof, the drainage pipeline comprises a main pipe and a drainage plate assembly, the drainage plate assembly comprises a first drainage plate and a second drainage plate, the first drainage plate and the second drainage plate are both fixedly connected with the main pipe, the first drainage plate and the second drainage plate are both communicated with the main pipe, the first drainage plate and the second drainage plate are arranged at intervals, the first drainage plate and the second drainage plate are symmetrically arranged on the main pipe, the first drainage plate and the second drainage plate are arranged on two sides of the main pipe, and drain water in the waste concrete so as to enable the water in the waste concrete to enter the main pipe and improve the drainage effect of the main pipe by improving the drainage effect of the main pipe by arranging the first drainage plate and the second drainage plate on two sides of the main pipe, the problem of drainage effect unsatisfactory of drainage pipe in the abandonment concrete is solved.
Description
Technical Field
The invention relates to the technical field of pipelines, in particular to a drainage pipeline based on waste concrete and a preparation method thereof.
Background
The pipeline is used for transmitting various liquids, the liquids comprise water, waste liquid or chemical liquid, etc., the water in the waste concrete needs to be discharged by a drainage pipeline, and the drainage effect of the existing drainage pipeline in the waste concrete is not ideal.
Disclosure of Invention
The invention aims to provide a drainage pipeline based on waste concrete and a preparation method thereof, and aims to solve the problem that the drainage effect of the drainage pipeline in the waste concrete is not ideal.
In order to achieve the purpose, the invention provides a waste concrete-based drainage pipeline, which comprises a main pipe and a drainage plate assembly, wherein the drainage plate assembly comprises a first drainage plate and a second drainage plate, the first drainage plate and the second drainage plate are fixedly connected with the main pipe, the first drainage plate and the second drainage plate are communicated with the main pipe, the first drainage plate and the second drainage plate are arranged at intervals, the first drainage plate and the second drainage plate are symmetrically arranged on the main pipe, and a plurality of drainage ports are arranged on the first drainage plate and the second drainage plate at intervals.
The number of the drainage plate assemblies is multiple, and the drainage plate assemblies are arranged on the main pipe at intervals.
Wherein the first and second flow-guiding plates are both inclined upward.
Wherein, drainage pipe based on abandonment concrete still includes a plurality of filter screens, arbitrary first drainage board with it is equipped with to fix on the second drainage board the filter screen, the filter screen is located drainage mouth department, just the filter screen is located first drainage board with the top of second drainage board.
Wherein, drainage pipe still includes support frame and bearing plate based on abandonment concrete, the support frame is fixed in ground, the bearing plate with support frame fixed connection, the bearing plate is located the top of support frame, the bearing plate have with be responsible for assorted arc wall, be responsible for and be located the inside of arc wall.
The two sides of the bearing plate are both provided with bearing frames, one end of each bearing frame is fixedly connected with the bearing plate, the bearing frames are located at the top of the bearing plate, and the bearing frames on the two sides of the bearing plate are respectively fixedly connected with the first drainage plate and the second drainage plate.
The invention also provides a preparation method of the drainage pipeline based on the waste concrete, which comprises the following steps:
welding the first drainage plate and the second drainage plate on the main pipe respectively;
fixedly mounting the filter screen at the drainage ports of the first drainage plate and the second drainage plate;
fixing the support frame on the ground by adopting a plurality of bolts, and welding the bearing plate above the support frame;
and placing the main pipe into the arc-shaped groove, and welding the bearing frames on two sides of the bearing plate with the first drainage plate and the second drainage plate respectively.
The invention has the beneficial effects that: the first drainage plate and the second drainage plate are arranged on the two sides of the main pipe and drain water in the waste concrete, so that the water in the waste concrete enters the main pipe, the water in the waste concrete is discharged from the main pipe, the drainage effect of the main pipe is improved, and the problem that the drainage effect of a drainage pipeline in the waste concrete is not ideal is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a top view of a waste concrete based drainline of the present invention.
Fig. 2 is a cross-sectional view at a-a of fig. 1 of the present invention.
Fig. 3 is a partial enlarged view of the present invention at B in fig. 2.
FIG. 4 is a flow chart illustrating a method for manufacturing a waste concrete based drainpipe according to the present invention.
1-main pipe, 11-positioning bracket, 2-drainage plate component, 21-first drainage plate, 211-drainage port, 22-second drainage plate, 3-filter screen, 4-support frame, 5-bearing plate, 51-arc groove, 52-bearing frame, 53-positioning notch and 6-protection plate.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a drainage pipe based on abandonment concrete, is including being responsible for 1 and drainage plate subassembly 2, drainage plate subassembly 2 includes first drainage plate 21 and second drainage plate 22, first drainage plate 21 with second drainage plate 22 all with be responsible for 1 fixed connection, first drainage plate 21 with second drainage plate 22 all with be responsible for 1 and be linked together, first drainage plate 21 with second drainage plate 22 interval sets up, just first drainage plate 21 with second drainage plate 22 symmetry sets up be responsible for 1 on, first drainage plate 21 with all have a plurality of drainage mouths 211 on the second drainage plate 22, it is a plurality of drainage mouth 211 interval sets up.
In this embodiment, the main pipe 1 discharges water in waste concrete, a first drainage plate 21 and a second drainage plate 22 are disposed on two sides of the main pipe 1, a plurality of drainage ports 211 are disposed on each of the first drainage plate 21 and the second drainage plate 22, the water in the waste concrete enters the first drainage plate 21 and the second drainage plate 22 through the drainage ports 211, each of the first drainage plate 21 and the second drainage plate 22 is communicated with the main pipe 1, the water in the first drainage plate 21 and the second drainage plate 22 enters the main pipe 1 to be discharged, the drainage ports 211 on each of the first drainage plate 21 and the second drainage plate 22 are higher than the top of the main pipe 1, so that the water in the first drainage plate 21 and the second drainage plate 22 can flow into the main pipe 1, and the first drainage plate 21 and the second drainage plate 22 are disposed on two sides of the main pipe 1, the first drainage plate 21 and the second drainage plate 22 drain water in the waste concrete so that the water in the waste concrete enters the main pipe 1 to improve the drainage effect of the main pipe 1 by discharging the water in the waste concrete from the main pipe 1, and the problem that the drainage effect of a drainage pipeline in the waste concrete is not ideal is solved.
Furthermore, the quantity of the drainage plate assemblies 2 is multiple, and the drainage plate assemblies 2 are arranged on the main pipe 1 at intervals.
In the present embodiment, a plurality of the drainage plate assemblies 2 are provided on the main pipe 1 at intervals in the axial direction of the main pipe 1 to improve the drainage effect of the main pipe 1.
Further, the first and second flow-guiding plates 21 and 22 are both inclined upward.
In the present embodiment, each of the first and second flow-guiding plates 21 and 22 is slightly inclined upward so that water in the first and second flow-guiding plates 21 and 22 easily flows into the main tube 1.
Further, drainage pipe based on abandonment concrete still includes a plurality of filter screens 3, arbitrary first drainage plate 21 with it is equipped with to fix on the second drainage plate 22 filter screen 3, filter screen 3 is located drainage mouth 211 department, just filter screen 3 is located first drainage plate 21 with the top of second drainage plate 22.
In this embodiment, the filter net 3 is disposed at the drainage port 211, and the filter net 3 filters impurities in the waste concrete to prevent the drainage port 211 from being blocked.
Further, drainage pipe based on abandonment concrete still includes support frame 4 and bearing plate 5, support frame 4 is fixed in ground, bearing plate 5 with support frame 4 fixed connection, bearing plate 5 is located the top of support frame 4, bearing plate 5 have with be responsible for 1 assorted arc 51, be responsible for 1 and be located the inside of arc 51.
In this embodiment, the support frame 4 supports the bearing plate 5, and the main pipe 1 is placed inside the arc-shaped groove 51, thereby fixing the main pipe 1.
Further, both sides of the bearing plate 5 are provided with bearing frames 52, one end of each bearing frame 52 is fixedly connected with the bearing plate 5, the bearing frames 52 are located at the top of the bearing plate 5, and the bearing frames 52 on both sides of the bearing plate 5 are respectively fixedly connected with the first drainage plate 21 and the second drainage plate 22.
In this embodiment, the bearing frame 52 is disposed on two sides of the bearing plate 5, and the bearing frame 52 can support the first drainage plate 21 and the second drainage plate 22, so as to share the weight borne by the first drainage plate 21 and the second drainage plate 22, thereby improving the service life of the first drainage plate 21 and the second drainage plate 22.
Further, the bottom of being responsible for 1 is equipped with locating support 11, locating support 11 with be responsible for 1 fixed connection, bearing plate 5 in the inside of arc wall 51 is equipped with location notch 53, locating support 11 is located the inside of location notch 53.
In this embodiment, when the main pipe 1 is installed in the arc-shaped groove 51, the positioning bracket 11 is installed in alignment with the positioning notch 53 to position the main pipe 1, and the main pipe 1 is prevented from rotating relative to the bearing plate 5, thereby limiting the position of the main pipe 1.
Further, drainage pipe based on waste concrete still includes guard plate 6, guard plate 6 with bearing plate 5 fixed connection, be responsible for 1 and be located guard plate 6 with between the bearing plate 5.
In this embodiment, the protection plate 6 protects the main pipe 1 and can bear the weight of the waste concrete, thereby reducing the weight of the waste concrete borne by the main pipe 1 and improving the service life of the main pipe 1.
Referring to fig. 4, the present invention further provides a preparation method of the waste concrete based drainage pipeline, which specifically includes the following steps:
s1, respectively welding the first drainage plate 21 and the second drainage plate 22 on the main pipe 1;
s2, fixedly installing the filter screen 3 at the drainage openings 211 of the first drainage plate 21 and the second drainage plate 22;
s3, fixing the support frame 4 on the ground by adopting a plurality of bolts, and welding the bearing plate 5 above the support frame 4;
s4, placing the main tube 1 into the arc-shaped groove 51, and welding the bearing frames 52 on both sides of the bearing plate 5 with the first flow-guiding plate 21 and the second flow-guiding plate 22 respectively.
In this embodiment, will earlier first drainage plate 21 with second drainage plate 22 welds respectively be responsible for 1 on, will later filter screen 3 fixed mounting be in first drainage plate 21 with second drainage plate 22 drainage mouth 211 department adopts a plurality of bolts will support frame 4 is fixed in ground, and will bearing plate 5 welds the top of support frame 4, will at last be responsible for 1 and place into the inside of arc wall 51, and right bearing frame 52 of bearing plate 5 both sides respectively with first drainage plate 21 with second drainage plate 22 welds.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A drainage pipeline based on waste concrete is characterized in that,
including being responsible for and drainage plate subassembly, the drainage plate subassembly includes first drainage plate and second drainage plate, first drainage plate with the second drainage plate all with be responsible for fixed connection, first drainage plate with the second drainage plate all with be responsible for and be linked together, first drainage plate with second drainage plate interval sets up, just first drainage plate with second drainage plate symmetry sets up be responsible for on, first drainage plate with all have a plurality of drainage mouths, a plurality of on the second drainage plate the drainage mouth interval sets up.
2. Waste concrete based drainline according to claim 1,
the quantity of drainage plate subassembly is a plurality of, and is a plurality of drainage plate subassembly interval sets up be responsible for on.
3. A waste concrete based drainline as claimed in claim 2,
the first drainage plate and the second drainage plate are both inclined upwards.
4. A waste concrete based drainline as claimed in claim 3,
drainage pipe still includes a plurality of filter screens based on abandonment concrete, arbitrary first drainage board with it is equipped with to fix on the second drainage board the filter screen, the filter screen is located drainage mouth department, just the filter screen is located first drainage board with the top of second drainage board.
5. A waste concrete based drainline as claimed in claim 4,
drainage pipe still includes support frame and bearing plate based on abandonment concrete, the support frame is fixed in ground, the bearing plate with support frame fixed connection, the bearing plate is located the top of support frame, the bearing plate have with be responsible for assorted arc wall, be responsible for and be located the inside of arc wall.
6. A waste concrete based drainline as claimed in claim 5,
the two sides of the bearing plate are respectively provided with a bearing frame, one end of each bearing frame is fixedly connected with the bearing plate, the bearing frames are positioned at the top of the bearing plate, and the bearing frames at the two sides of the bearing plate are respectively fixedly connected with the first drainage plate and the second drainage plate.
7. The preparation method of the waste concrete based drainage pipeline as claimed in claim 6, which comprises the following steps:
welding the first drainage plate and the second drainage plate on the main pipe respectively;
fixedly mounting the filter screen at the drainage ports of the first drainage plate and the second drainage plate;
fixing the support frame on the ground by adopting a plurality of bolts, and welding the bearing plate above the support frame;
and placing the main pipe into the arc-shaped groove, and welding the bearing frames on two sides of the bearing plate with the first drainage plate and the second drainage plate respectively.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011598397.0A CN112854406A (en) | 2020-12-29 | 2020-12-29 | Drainage pipeline based on waste concrete and preparation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011598397.0A CN112854406A (en) | 2020-12-29 | 2020-12-29 | Drainage pipeline based on waste concrete and preparation method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
CN112854406A true CN112854406A (en) | 2021-05-28 |
Family
ID=75998261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011598397.0A Pending CN112854406A (en) | 2020-12-29 | 2020-12-29 | Drainage pipeline based on waste concrete and preparation method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112854406A (en) |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1763323A (en) * | 2004-10-20 | 2006-04-26 | 株式会社艾博科 | Drainage pipe construction method, drainage pipe structure, building with drainage pipe structure |
CN206359340U (en) * | 2016-12-28 | 2017-07-28 | 江苏盛鸿大业智能科技股份有限公司 | A kind of casting drainage arrangement |
CN206902888U (en) * | 2017-03-27 | 2018-01-19 | 成都鑫盛生物科技有限公司 | A kind of flow quantity self-adjusting section formula highway pavement gully |
CN207003605U (en) * | 2017-06-30 | 2018-02-13 | 襄阳盛泰混凝土有限公司 | Reinforced buried concrete pumping equipment |
CN207260284U (en) * | 2017-10-13 | 2018-04-20 | 沈磊 | One kind shunting anti-blockage type road drainage pipeline |
CN207629514U (en) * | 2017-12-18 | 2018-07-20 | 江苏绿叶锅炉有限公司 | A kind of positioning device |
CN207901085U (en) * | 2018-03-01 | 2018-09-25 | 温州市公用工程有限公司 | Multiplexing combined pipeline support bracket for installing large-diameter steel pipe |
CN109797832A (en) * | 2019-03-13 | 2019-05-24 | 长沙如洋环保科技有限公司 | A kind of municipal drainage pipeline |
CN208965421U (en) * | 2018-08-27 | 2019-06-11 | 武冈市佳能新型建材有限公司 | A kind of prefabricated pipe culvert of composite assembled |
CN209703652U (en) * | 2018-09-30 | 2019-11-29 | 中交上海航道局有限公司 | A kind of drainage pipeline positioning device |
CN211200627U (en) * | 2019-07-16 | 2020-08-07 | 杨清华 | Underground water supply and drainage concrete structure of house building |
CN111501955A (en) * | 2020-03-30 | 2020-08-07 | 宁波市城展建设工程有限公司 | Municipal drainage pipeline |
CN212104428U (en) * | 2019-07-03 | 2020-12-08 | 福建省华电信达管业科技有限公司 | Water seepage drain pipe |
CN212130544U (en) * | 2020-04-29 | 2020-12-11 | 中国煤炭地质总局水文地质局 | Waterproof drainage mechanism of underworkings roof |
-
2020
- 2020-12-29 CN CN202011598397.0A patent/CN112854406A/en active Pending
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1763323A (en) * | 2004-10-20 | 2006-04-26 | 株式会社艾博科 | Drainage pipe construction method, drainage pipe structure, building with drainage pipe structure |
CN206359340U (en) * | 2016-12-28 | 2017-07-28 | 江苏盛鸿大业智能科技股份有限公司 | A kind of casting drainage arrangement |
CN206902888U (en) * | 2017-03-27 | 2018-01-19 | 成都鑫盛生物科技有限公司 | A kind of flow quantity self-adjusting section formula highway pavement gully |
CN207003605U (en) * | 2017-06-30 | 2018-02-13 | 襄阳盛泰混凝土有限公司 | Reinforced buried concrete pumping equipment |
CN207260284U (en) * | 2017-10-13 | 2018-04-20 | 沈磊 | One kind shunting anti-blockage type road drainage pipeline |
CN207629514U (en) * | 2017-12-18 | 2018-07-20 | 江苏绿叶锅炉有限公司 | A kind of positioning device |
CN207901085U (en) * | 2018-03-01 | 2018-09-25 | 温州市公用工程有限公司 | Multiplexing combined pipeline support bracket for installing large-diameter steel pipe |
CN208965421U (en) * | 2018-08-27 | 2019-06-11 | 武冈市佳能新型建材有限公司 | A kind of prefabricated pipe culvert of composite assembled |
CN209703652U (en) * | 2018-09-30 | 2019-11-29 | 中交上海航道局有限公司 | A kind of drainage pipeline positioning device |
CN109797832A (en) * | 2019-03-13 | 2019-05-24 | 长沙如洋环保科技有限公司 | A kind of municipal drainage pipeline |
CN212104428U (en) * | 2019-07-03 | 2020-12-08 | 福建省华电信达管业科技有限公司 | Water seepage drain pipe |
CN211200627U (en) * | 2019-07-16 | 2020-08-07 | 杨清华 | Underground water supply and drainage concrete structure of house building |
CN111501955A (en) * | 2020-03-30 | 2020-08-07 | 宁波市城展建设工程有限公司 | Municipal drainage pipeline |
CN212130544U (en) * | 2020-04-29 | 2020-12-11 | 中国煤炭地质总局水文地质局 | Waterproof drainage mechanism of underworkings roof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN112854406A (en) | Drainage pipeline based on waste concrete and preparation method thereof | |
CN211971832U (en) | Modular split immersed membrane filtering device | |
CN213668197U (en) | Pipeline direct drinking water backwashing assembly | |
CN213506219U (en) | Modular immersed membrane box | |
CN212056334U (en) | Anti-blocking joint for oil pipeline | |
CN212818364U (en) | Filter equipment for chemical pump | |
CN209818290U (en) | Water inlet pump convenient to dismouting filter | |
CN218011511U (en) | Mounting bracket of pre-filter | |
CN213926582U (en) | Drainage pipeline dredging equipment | |
CN215592705U (en) | Laboratory wastewater treatment equipment with multiphase catalytic oxidation and iron aeration process | |
CN220376468U (en) | Porous filler interception device for biological pond | |
CN219450958U (en) | Quartz stone plate with anti-pollution performance | |
CN217567974U (en) | Gas-liquid separation filter | |
CN218988864U (en) | Device for treating rainwater | |
CN216078771U (en) | Flow divider for hydraulic engineering | |
CN220644529U (en) | Sewage intercepting device for rain inlet of sponge urban road green belt | |
CN219219297U (en) | Novel prefabricated sewer mouth brick | |
CN216999940U (en) | Gardens ramp rainwater collection device | |
CN220505440U (en) | Double-water pump circulating device | |
CN220177751U (en) | Pipeline flushing device | |
CN213253364U (en) | Intraductal filter disc is used in urban drainage improvement engineering | |
CN219386555U (en) | Drainage blind pipe with filtering mechanism | |
CN211546244U (en) | Rural integration sewage treatment plant | |
CN219013590U (en) | Concrete pipe | |
CN217998324U (en) | Municipal administration road prevents siphon pipeline structure that blocks |
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 | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210528 |