CN212452459U - Hydraulic engineering flood control wall structure - Google Patents
Hydraulic engineering flood control wall structure Download PDFInfo
- Publication number
- CN212452459U CN212452459U CN202020899768.8U CN202020899768U CN212452459U CN 212452459 U CN212452459 U CN 212452459U CN 202020899768 U CN202020899768 U CN 202020899768U CN 212452459 U CN212452459 U CN 212452459U
- Authority
- CN
- China
- Prior art keywords
- flood control
- water inlet
- water
- length direction
- intake chamber
- 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.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
Abstract
The utility model discloses a hydraulic engineering flood control wall structure relates to the technical field of flood control, has solved the not enough problem of flood control work preparation time, and it is including setting up the flood control wall body on the river dam top, the intake chamber has been seted up to the upper end of flood control wall body, the intake chamber extends along the length direction of flood control wall body, one side inner wall that the intake chamber is close to the river surface runs through has seted up the inlet opening, install the manger plate subassembly that is used for interim manger plate in the intake chamber, the manger plate subassembly includes the kickboard and installs the breakwater on the kickboard, kickboard and intake chamber length direction's both sides sliding connection, the upper end of intake chamber is provided with and is used for the limiting plate, the lower surface of limiting plate forms the butt with the upper surface of kickboard. The utility model has the advantages of can strive for more preparation time for flood control work.
Description
Technical Field
The utility model belongs to the technical field of the technique of flood control and specifically relates to a hydraulic engineering flood control wall structure is related to.
Background
The flood control wall in the water conservancy project is built for preventing rivers from flooding, and can restrain flood to a certain extent. The flood control walls are arranged beside rivers and lakes in various cities, so that people living on the river bank are protected from flood disasters and property loss is avoided. When rainstorm flood occurs frequently, river water, lake water or sea water may overflow the flood control wall, and great threat is brought to life and property safety of people. Therefore, flood control is particularly important.
Flood control structure among the prior art, like the patent of grant publication No. CN106400739B, including setting up the guardrail on the river dam top, set up the base in the guardrail below, set up in the base and reserve the intake chamber, will wrap up the U type layering board of retaining cloth and the fixed retaining cloth on the guardrail and place in reserving the intake chamber, reserve the intake chamber top and be provided with the concrete apron. When the flood comes, the water retaining cloth is taken out to wrap the guardrail, and the U-shaped pressing strip plate is arranged in the reserved water inlet groove. The water is retained by the water retaining cloth and the U-shaped pressing strip plate, so that the aim of preventing flood spreading is fulfilled.
Among the above-mentioned prior art scheme, when the flood comes, need take out the tarpaulin parcel on the guardrail, can play certain flood control effect, so need certain preparation time. When a sudden storm occurs or a flood suddenly rises, it may be impossible for personnel to take out the tarpaulin in time, thereby preventing the flood from spreading.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a hydraulic engineering flood control wall structure has the advantage that can strive for more preparation time for flood control work not enough to prior art.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a hydraulic engineering flood control wall structure, is including setting up the flood control wall body on the top of dam, the intake chamber has been seted up to the upper end of flood control wall body, the intake chamber extends along the length direction of flood control wall body, one side inner wall that the intake chamber is close to the river surface runs through and has seted up the inlet opening, install the manger plate subassembly that is used for interim manger plate in the intake chamber, the manger plate subassembly includes the kickboard and installs the breakwater on the kickboard, kickboard and intake chamber length direction's both sides sliding connection, the upper end of intake chamber is provided with the limiting plate, the lower surface of limiting plate forms the butt with the upper surface of kickboard.
Through adopting above-mentioned technical scheme, when flood rises to the take the altitude of flood control wall body, the flood passes through the water inlet and gets into the intake chamber, and the kickboard in the intake chamber receives the buoyancy of water and upwards floats, and the kickboard upwards slides along the inner wall of intake chamber, orders about outside the breakwater rebound department intake chamber, has improved the flood control height of flood control wall body through the breakwater to more preparation time has been striven for flood control work.
The present invention may be further configured in a preferred embodiment as: the improved water-retaining wall is characterized in that a plurality of vertical drain pipes are installed in the water inlet tank, the drain pipes are evenly distributed along the length direction of the water inlet tank at intervals, drain holes are formed in the peripheral sides of the drain pipes, a drain channel is arranged in the flood control wall body, the drain channel extends along the length direction of the flood control wall body, the lower ends of the drain pipes extend out of the water inlet tank and are communicated with the drain channel, a plurality of water-retaining assemblies are arranged, one water-retaining assembly is arranged between two adjacent drain pipes, and the two ends of the floating plate in the length direction are respectively connected with the two rows of water pipes in a sliding mode.
Through adopting above-mentioned technical scheme, when the flood got into in the intake chamber, in partial flood passed through the drain pipe and discharged into drainage channel, make supply flood rise slower, also strived for more preparation time for flood control work.
The present invention may be further configured in a preferred embodiment as: the drain hole is evenly distributed with a plurality of along the direction of drain pipe.
By adopting the technical scheme, the drainage of the drainage pipe can be accelerated through the drainage holes, so that the water supply is slower to rise.
The present invention may be further configured in a preferred embodiment as: the outer peripheral side of the drain pipe is sleeved with a housing, the upper end part of the housing extends out of the water inlet groove, the housing is connected with the drain pipe in a vertical sliding mode, the drain hole is located in the housing, two ends of the floating plate in the length direction are respectively fixedly connected with the housing, and one side, close to the water inlet groove, of the housing is connected with the inner wall of the water inlet groove in a sliding mode.
Through adopting above-mentioned technical scheme, when the flood comes temporarily, the kickboard receives the buoyancy of water to drive housing rebound, make wash port and intake antrum intercommunication, make the drain pipe carry out the drainage to the flood. When flood is not available, the cover shell covers the drain hole, so that impurities are not easy to enter the drainage channel from the drain hole, and the drainage channel is smooth in drainage.
The present invention may be further configured in a preferred embodiment as: the water inlet tank is characterized in that a covering plate used for covering the upper end of the water inlet tank is arranged on the water baffle, the lower surface of the covering plate is abutted against the limiting plate, and two ends of the covering plate are respectively in contact with one side of the two adjacent housings.
By adopting the technical scheme, the water retaining component is not easy to be exposed in the visual field of people through the cover plate, and can be protected to a certain extent,
the present invention may be further configured in a preferred embodiment as: the cover plate is made of a material with the density smaller than that of water, the lower end of the cover plate is connected with water retaining cloth used for retaining water, a mounting groove used for folding and placing the water retaining cloth is formed in the water retaining plate, one end of the water retaining cloth is fixedly connected with the bottom of the mounting groove, the two ends of the cover plate are connected with sliding blocks, a sliding groove used for sliding the sliding blocks up and down is formed in the cover shell, and a limiting block used for limiting sliding of the sliding blocks is arranged at the upper end of the sliding groove.
Through adopting above-mentioned technical scheme, if the lower surface department of highly rising to the cover plate of flood to when continuing to rise, the cover plate floats on the surface of water, the in-process slider of cover plate come-up moves along the spout, slider rebound to with the stopper butt, drive the fender water cloth and upwards spread out when the cover plate rebound, make the fender water cloth play certain manger plate effect to flood, thereby there is the flood control height that has increased the flood control wall body, more preparation time has been striven for flood control work
The present invention may be further configured in a preferred embodiment as: the water inlet groove between two adjacent housings is provided with two limiting plates, the two limiting plates are respectively positioned on two sides of the length direction of the water inlet groove, the limiting plates extend along the length direction of the water inlet groove, and two ends of each limiting plate are in contact with the outer side wall of each housing.
Through adopting above-mentioned technical scheme, when kickboard and limiting plate butt, the flood is difficult for following and gets into the flood control wall between kickboard and the breakwater in, has reduced this internal flood of infiltration flood control wall to a certain extent to make the flood control wall body can play the flood control effect better.
The present invention may be further configured in a preferred embodiment as: the water inlet is evenly distributed along the height direction of the water inlet groove and is provided with a plurality of rows along the length direction of the water inlet groove.
Through adopting above-mentioned technical scheme, through a plurality of inlet openings, make the flood get into the intake chamber more fast in, can make the kickboard float faster.
To sum up, the utility model discloses a following at least one beneficial effect:
1. the flood control height of the flood control wall body is increased by the floating plate and the water baffle which move upwards under the buoyancy of flood, so that more preparation time is provided for flood control work;
2. partial flood is drained away through the drainage pipe and the drainage channel, the rising speed of the flood is reduced, and more preparation time is provided for flood control work.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is a schematic vertical sectional view of the floating plate and the baffle of the present embodiment;
FIG. 3 is a vertical cross-sectional view of the highlighted drain pipe of this embodiment;
FIG. 4 is a schematic view of the connection between two adjacent casings and the floating plate in this embodiment;
FIG. 5 is a schematic view of a partial structure of the bump limiting plate structure in this embodiment;
fig. 6 is a schematic view illustrating a state that the water blocking cloth of the present embodiment is moved upward to a certain height along with the cover plate.
Reference numerals: 1. a river dam; 2. a flood wall body; 21. a water inlet groove; 22. a water inlet hole; 3. a floating plate; 4. a water baffle; 41. mounting grooves; 5. a limiting plate; 6. a drain pipe; 61. a drain hole; 7. a drainage channel; 8. a housing; 81. a chute; 82. a limiting block; 9. a cover plate; 91. a slider; 10. a water-blocking cloth.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses a hydraulic engineering flood control wall structure, including setting up flood control wall body 2 on river dam 1, flood control wall body 2 forms for concrete placement.
Referring to fig. 1 and 2, the upper end of the flood wall body 2 is provided with a water inlet groove 21 having an upward opening, and the water inlet groove 21 extends along the length direction of the flood wall body 2. The inner wall of one side of the water inlet channel 21 close to the river surface is provided with a plurality of water inlet holes 22 in a penetrating way, and the water inlet holes 22 are uniformly distributed along the height direction of the water inlet channel 21 and are arranged in a plurality of rows along the length direction of the water inlet channel 21.
Referring to fig. 2, a water blocking assembly for temporarily blocking water is installed in the water inlet tank 21, the water blocking assembly includes a floating plate 3 and a water blocking plate 4 installed on the floating plate 3, and both sides of the water blocking plate 4 are slidably connected with both sides of the water inlet tank 21 in the length direction. When the flood passes through inlet opening 22 and gets into in the intake chamber 21, the kickboard 3 upwards floats along the inner wall of intake chamber 21, and the upper end of intake chamber 21 is provided with limiting plate 5, and limiting plate 5 lower surface and kickboard 3's upper surface butt make the kickboard 3 can not the roll-off outside the intake chamber 21. Receive buoyancy when the kickboard 3 to the come-up, make breakwater 4 stretch out outside the intake chamber 21, have heightened the flood control height of flood control wall body 2 through breakwater 4, provide the preparation time of more flood control work for people.
Referring to fig. 3, in order to make the flood control wall have certain drainage ability in the flood control, when pouring flood control wall body 2, pre-buried vertical drain pipe 6 on flood control wall body 2, drain pipe 6 has many along the length direction evenly spaced distribution of flood control wall body 2. Still be provided with drainage channel 7 on the flood control wall, drainage channel 7 is the water pipe of plastics material, and the water pipe is also pre-buried in flood control wall body 2. The drainage channel 7 is positioned below the water inlet tank 21, the drainage channel 7 is parallel to the water inlet tank 21, and the lower end of the drainage pipe 6 extends out of the water inlet tank 21 and is communicated with the drainage channel 7. The part of the drain pipe 6 located in the water inlet channel 21 is provided with a plurality of drain holes 61, and the plurality of drain holes 61 are uniformly distributed along the height direction of the drain pipe 6.
Referring to fig. 3, the upper end of the water discharge pipe 6 is sleeved with a cover 8, the cover 8 is made of a material with density lower than that of water, and the upper end of the cover 8 is of a closed structure and partially extends out of the water inlet tank 21. When the housing 8 is sleeved with the drain pipe 6, the drain hole 61 is located in the housing 8, and the bottom of the housing 8 is abutted to the bottom of the water inlet groove 21. When the drain pipe 6 does not drain water, foreign matter is less likely to enter the drain pipe 6 through the drain hole 61 by the cover 8.
Referring to fig. 4, the housing 8 has a rectangular parallelepiped structure, the inner wall of the housing 8 is slidably connected to the outer peripheral side of the drain pipe 6, and the two outer side walls of the housing 8 are slidably connected to the inner walls of the water inlet tank 21 at both sides in the longitudinal direction (see fig. 2). The water retaining component is provided with a plurality of water retaining components, and one water retaining component is arranged between two adjacent water drainage pipes 6. The two ends of the floating plate 3 in the length direction are fixedly connected with the outer side walls of the two adjacent housings 8 respectively, a gap is reserved between the floating plate 3 and the bottom of the water inlet tank 2, and the two ends of the water baffle 4 are in contact with the outer side walls of the adjacent housings 8.
Referring to fig. 5, two limiting plates 5 are arranged in the water inlet channel 21 between two adjacent housings 8, the two limiting plates 5 are respectively located on the inner walls of two sides of the length direction of the water inlet channel 21, the limiting plates 5 extend along the length direction of the water inlet channel 21, and two ends of the limiting plates 5 are in contact with the outer side wall of the housing 8. When the floating plate 3 is abutted against the limiting plate 5, flood can be better prevented from entering the flood control wall.
Referring to fig. 2, the upper end of the water baffle 4 is abutted with a cover plate 9 for covering the opening of the water inlet groove 21, and the lower surface of the cover plate 9 is abutted with the limiting plate 5. The cover plate 9 is made of a material with density smaller than that of water, and the lower end of the cover plate 9 is fixedly connected with water retaining cloth 10 for retaining water. The water baffle 4 is provided with a mounting groove 41 for folding and placing the water baffle cloth 10, and one end of the water baffle cloth 10 is fixedly connected with the bottom of the mounting groove 41.
Referring to fig. 3, the both ends of the cover plate 9 contact with the adjacent outer side wall of the housing 8, the both ends of the cover plate 9 are connected with the sliding block 91, the housing 8 is provided with a sliding groove 81 for the sliding block 91 to slide up and down, and the upper end of the sliding groove 81 is provided with a limiting block 82 for limiting the sliding of the sliding block 91.
Referring to fig. 6, when the height of the flood reaches the lower surface of the cover plate 9 and further rises, the cover plate 9 is moved upward along the slide groove 81 by the buoyancy of the water until the slide block 91 abuts against the stopper 82. The cover plate 9 drives the water blocking cloth 10 to spread upwards when moving, so that the water blocking cloth 10 plays a certain water blocking role for flood, thereby gaining more time for flood control preparation work.
The implementation principle of the embodiment is as follows:
when flood rises, flood enters the water inlet groove 21 through the water inlet hole 22, the floating plate 3 and the housing 8 float upwards under the action of the buoyancy of water, so that the water baffle 4 is driven to move upwards to the water inlet groove 21, the water baffle 4 moving out of the water inlet groove 21 improves the flood control height of the flood control wall body 2, and more time is obtained for flood control preparation work. When the cover 8 moves upward, the water discharge hole 61 communicates with the water inlet channel 21, so that part of flood is discharged through the water discharge hole 61, and the flood wall body 2 can discharge the flood while preventing the flood.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a hydraulic engineering flood control wall structure, is including setting up flood control wall body (2) on river dam (1) top, its characterized in that: intake chamber (21) have been seted up to the upper end of flood control wall body (2), the length direction along flood control wall body (2) extends intake chamber (21), one side inner wall that intake chamber (21) are close to the river runs through and has seted up inlet opening (22), install the manger plate subassembly that is used for interim manger plate in intake chamber (21), the manger plate subassembly includes kickboard (3) and installs manger plate (4) on kickboard (3), kickboard (3) and intake chamber (21) length direction's both sides sliding connection, the upper end of intake chamber (21) is provided with limiting plate (5), the lower surface of limiting plate (5) forms the butt with the upper surface of kickboard (3).
2. A hydraulic engineering flood protection wall structure according to claim 1, characterized in that: install vertical drain pipe (6) of a plurality of in intake antrum (21), drain pipe (6) are along the even interval distribution of length direction of intake antrum (21), wash port (61) have been seted up to the week side of drain pipe (6), be provided with drainage channel (7) in flood control wall body (2), drainage channel (7) extend along the length direction of flood control wall body (2), the lower extreme of drain pipe (6) extends intake antrum (21) and communicates with drainage channel (7), the manger plate subassembly is provided with a plurality ofly, and a manger plate subassembly sets up between two adjacent drain pipes (6), the both ends of kickboard (3) length direction respectively with two rows of water pipe (6) sliding connection.
3. A hydraulic engineering flood protection wall structure according to claim 2, characterized in that: the plurality of the drain holes (61) are uniformly distributed along the direction of the drain pipe (6).
4. A hydraulic engineering flood protection wall structure according to claim 2, characterized in that: the water inlet device is characterized in that a housing (8) is sleeved on the outer peripheral side of the water outlet pipe (6), the upper end part of the housing (8) extends out of the water inlet groove (21), the housing (8) is connected with the water outlet pipe (6) in a vertical sliding mode, the water outlet hole (61) is located in the housing (8), two ends of the floating plate (3) in the length direction are fixedly connected with the housing (8) respectively, and one side, close to the water inlet groove (21), of the housing (8) is connected with the inner wall of the water inlet groove (21) in a sliding mode.
5. A hydraulic engineering flood control wall structure according to claim 4, characterized in that: be provided with on breakwater (4) and be used for hiding apron (9) of intake antrum (21) upper end, the lower surface and limiting plate (5) butt of apron (9), the both ends of apron (9) contact with one side of two adjacent shells (8) respectively.
6. A hydraulic engineering flood control wall structure according to claim 5, characterized in that: the cover plate (9) is made for the material that density is less than water, the lower extreme of cover plate (9) is connected with water retaining cloth (10) that is used for the manger plate, offer on water retaining plate (4) and be used for supplying water retaining cloth (10) folding mounting groove (41) of placing, the one end of water retaining cloth (10) and the bottom fixed connection of mounting groove (41), the both ends of cover plate (9) are connected with slider (91), offer on housing (8) and be used for supplying slider (91) gliding spout (81) from top to bottom, spout (81) upper end is provided with stopper (82) that are used for restricting slider (91) roll-off.
7. A hydraulic engineering flood control wall structure according to claim 4, characterized in that: the water inlet groove (21) between the two adjacent housings (8) is provided with two limiting plates (5), the two limiting plates (5) are respectively located on two sides of the length direction of the water inlet groove (21), the limiting plates (5) extend along the length direction of the water inlet groove (21), and two ends of each limiting plate (5) are in contact with the outer side wall of each housing (8).
8. A hydraulic engineering flood protection wall structure according to claim 1, characterized in that: the water inlet holes (22) are uniformly distributed along the height direction of the water inlet groove (21), and a plurality of rows of water inlet holes (22) are uniformly distributed along the length direction of the water inlet groove (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020899768.8U CN212452459U (en) | 2020-05-26 | 2020-05-26 | Hydraulic engineering flood control wall structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020899768.8U CN212452459U (en) | 2020-05-26 | 2020-05-26 | Hydraulic engineering flood control wall structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212452459U true CN212452459U (en) | 2021-02-02 |
Family
ID=74500231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020899768.8U Active CN212452459U (en) | 2020-05-26 | 2020-05-26 | Hydraulic engineering flood control wall structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212452459U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113668455A (en) * | 2021-08-23 | 2021-11-19 | 宁夏中科恒瑞智能科技有限公司 | Novel flood prevention system |
| CN114277726A (en) * | 2021-12-23 | 2022-04-05 | 苍南县设计研究院 | Municipal works are with flood control drainage device |
| CN115323984A (en) * | 2022-08-31 | 2022-11-11 | 安徽国防科技职业学院 | Emergent manger plate equipment of mechanical type auto-induction flood control |
-
2020
- 2020-05-26 CN CN202020899768.8U patent/CN212452459U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113668455A (en) * | 2021-08-23 | 2021-11-19 | 宁夏中科恒瑞智能科技有限公司 | Novel flood prevention system |
| CN114277726A (en) * | 2021-12-23 | 2022-04-05 | 苍南县设计研究院 | Municipal works are with flood control drainage device |
| CN114277726B (en) * | 2021-12-23 | 2023-08-29 | 苍南县设计研究院 | Flood control drainage device for municipal works |
| CN115323984A (en) * | 2022-08-31 | 2022-11-11 | 安徽国防科技职业学院 | Emergent manger plate equipment of mechanical type auto-induction flood control |
| CN115323984B (en) * | 2022-08-31 | 2023-07-18 | 安徽国防科技职业学院 | Mechanical automatic induction flood control emergency water retaining device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212452459U (en) | Hydraulic engineering flood control wall structure | |
| WO2024053882A1 (en) | Dam comprising auxiliary dam and underbed channel | |
| CN217378804U (en) | Overflow dam with arrange and float function | |
| CN214194423U (en) | Waterlogging-prevention drainage water supply channel | |
| CN212426950U (en) | Flood control wall structure | |
| RU2011735C1 (en) | Earth- filled dam with filtering spillway | |
| KR101943861B1 (en) | erosion control dam having a rear type fish ladder | |
| KR100571724B1 (en) | Slide Type Floodgate | |
| JP2004316383A (en) | Door body of sluice gate weir equipped with fish pass | |
| KR101008462B1 (en) | Fish passage device for fry | |
| RU2789335C1 (en) | Earthfill dam with combined spillway | |
| JPS5816202B2 (en) | Automatic selection wastewater desalination equipment | |
| KR820002207B1 (en) | Automatic apparatus for selectively draining sea water | |
| KR200320510Y1 (en) | An automatic guard gate configured to discharge influent water without opening the gate by the role of the siphon aisle | |
| CN218060203U (en) | Water conservancy river trash blocking flood prevention device | |
| KR100431572B1 (en) | Rubble mound Water-inflowing Breakwater | |
| CN218521741U (en) | Fishway inlet structure adapting to downstream water level change | |
| JP5865491B2 (en) | Plant cooling facility with intake and drainage ponds | |
| SU883231A1 (en) | Floating gate | |
| JP3602243B2 (en) | Stair-type fishway equipment for tide prevention | |
| CN220305879U (en) | Seepage intelligent monitoring equipment for hydraulic engineering | |
| RU2057841C1 (en) | Fish pass of uniform water level drop | |
| CN211340704U (en) | Ecological sluice device | |
| CN217150079U (en) | Landscape water drop weir | |
| CN218521711U (en) | Ecological embankment slope of city river |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |