CN112030868B - Flood prevention plate suitable for concave-convex road surface - Google Patents
Flood prevention plate suitable for concave-convex road surface Download PDFInfo
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- CN112030868B CN112030868B CN202010840390.9A CN202010840390A CN112030868B CN 112030868 B CN112030868 B CN 112030868B CN 202010840390 A CN202010840390 A CN 202010840390A CN 112030868 B CN112030868 B CN 112030868B
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- groove
- fixedly connected
- limiting
- water baffle
- plate
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- 230000002265 prevention Effects 0.000 title claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000000945 filler Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000003139 buffering effect Effects 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 7
- 230000008595 infiltration Effects 0.000 abstract 1
- 238000001764 infiltration Methods 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 238000013508 migration Methods 0.000 description 3
- 230000005012 migration Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
- E02B3/106—Temporary dykes
- E02B3/108—Temporary dykes with a filling, e.g. filled by water or sand
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Revetment (AREA)
Abstract
The invention discloses a flood prevention plate applicable to a concave-convex road surface, and relates to the technical field of natural disaster prevention equipment. This flood prevention board that can be applicable to unsmooth road surface, can avoid current flood prevention board to only can install in the more smooth region in ground, can't the stable installation realize waterproof function on unsmooth road surface, the easy infiltration of waterproof board bottom, can't realize higher waterproof degree, can't realize the buffering when the water impact dynamics is great, can't be according to the degree of the adjustment buffering of the size intelligence of rivers, the position of placing of the unable nimble adjustment bracing piece behind the breakwater position determination, the lower problem of the flexibility of installation.
Description
Technical Field
The invention relates to the technical field of natural disaster prevention equipment, in particular to a flood prevention plate applicable to a concave-convex road surface.
Background
The flood prevention water baffle is suitable for the fields of industry, traffic, water conservancy, tunnels, subways and low-lying residential districts, and protects key facilities and property from water damage in the coming of flood season. The Chinese invention CN110552319A discloses a water conservancy flood prevention plate, which comprises more than one flood prevention module arranged on a region with a lower terrain, wherein the more than one flood prevention module is arranged on the region side by side, and a gap section is formed between adjacent flood prevention modules; every group flood prevention module all includes a base with the road surface aequilate, and the both ends of base are hugged closely on the side edge of road both sides, the up end of base all imbeds and sets up an interlayer, and the top of interlayer has an arc cavity, and the water absorbing strip of arc cavity seal installation at interlayer top can lay in regions such as the lower overpass of relief, can realize the interception and absorb water of rainwater, can supply the vehicle to normally travel simultaneously and pass through to the accessible vehicle goes and subducts the ponding that absorbs water through atomizing mode blowout, the interception volume of greatly increased rainwater. But only can install in the more smooth region in ground, can't stably install on unsmooth road surface and realize waterproof function, the waterproof board bottom seeps water easily, can't realize the waterproof of higher degree, can't realize the buffering when the impact force of rivers is great, can't be according to the degree of the adjustment buffering of the size intelligence of rivers, the position of placing of the adjustment bracing piece that can't be nimble behind the breakwater position determination, the flexibility of installation is lower.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a flood prevention plate suitable for a concave-convex road surface, which can avoid the problems that the conventional flood prevention plate can only be installed in a relatively flat area on the ground, the waterproof function cannot be realized by stably installing the flood prevention plate on the concave-convex road surface, water is easy to seep from the bottom of the flood prevention plate, high-degree waterproofing cannot be realized, buffering cannot be realized when the impact force of water flow is high, the buffering degree cannot be intelligently adjusted according to the size of the water flow, the placement position of a support rod cannot be flexibly adjusted after the position of a water baffle is determined, and the installation flexibility is low.
In order to realize the purpose, the invention is realized by the following technical scheme: a flood prevention plate suitable for concave-convex road surfaces comprises a water baffle plate, wherein a filling groove is formed in the bottom of the water baffle plate, one end of the bottom of each side of the filling groove penetrates through the water baffle plate, a filling bag is connected between two sides of the inner wall of the filling groove in a sliding manner, filler is filled in the filling bag, a lifting plate is connected between two sides of the inner wall of the filling groove and above the filling bag in a sliding manner, the lifting plate is fixedly connected with the filling bag, a control groove is formed in the top of the water baffle plate, one end of the bottom of the control groove is provided with a communicating groove, the communicating groove is communicated with the filling groove, a support is fixedly connected to the bottom of the inner wall of the control groove, a lifting rod is rotatably connected between two sides of the support, one end of the lifting rod penetrates through the communicating groove and is rotatably connected with the lifting plate, the water baffle plate is placed on the road surface, and supports the ground surface after the supporting rod is inclined, the flood prevention plate is characterized in that the hook is taken down from the reinforcing rod and then lifted upwards, the lifting rod drives the lifting plate to descend to press the filling bag and fillers inside to the outside of the filling groove, the filling bag and the fillers inside descend to extrude the ground, the convex block clamping sliding groove of the other water blocking plate is connected in a clamping mode, the flood prevention plate can be installed on the rugged ground to prevent flood, the filling bag and the fillers inside are extruded to be high in fit degree with the ground, water can be prevented from seeping out of the bottom of the flood prevention plate, the high-degree waterproof effect of the flood prevention plate is achieved, the bottom of the water blocking plate is symmetrically provided with limiting grooves, one ends of the bottoms of the limiting grooves are communicated with the filling groove, limiting devices are installed in the limiting grooves, one sides of the water blocking plates are connected with a base in a rotating mode through supporting rods, and one sides of the water blocking plates, far away from the supporting rods, are provided with buffering devices.
Preferably, the limiting device comprises a limiting spring, the top of the limiting spring is fixedly connected with the top of the inner wall of the limiting groove, the bottom of the limiting spring is fixedly connected with a lifting plate, the lifting plate is connected with the inner wall of the limiting groove in a sliding manner, the bottom of the lifting plate is fixedly connected with a limiting net, the limiting net is made of wear-resistant materials, one end of the bottom of the limiting net penetrates through the filling groove and is fixedly connected with the lifting plate on the other side, the filling bag and the fillers in the filling bag are downwards extruded by the lifting plate and then wrapped by the limiting net, the limiting net is downwards extruded by the filling bag and then pulled by the limiting spring to be stretched, the flood prevention plate downwards presses the lifting rod after being used, the lifting rod drives the lifting plate and the filling bag to ascend to the inside of the filling groove, the limiting net is pulled to the inside of the limiting groove by the limiting spring after being not extruded by the filling bag, and the limiting net can limit the moving direction of the extruded filling bag, the device is prevented from being clamped when the flood prevention plate is reset after being used, and the use reliability of the flood prevention plate is improved.
Preferably, sliding plates are connected to two sides of the inner wall of the filling groove in a sliding mode, the sliding plates are fixedly connected with the filling bag, a lifting rope is fixedly connected to the top of each sliding plate, and one end, far away from the sliding plates, of each lifting rope is fixedly connected with the lifting plate.
Preferably, buffer includes the arc, the arc rotates with the breakwater to be connected, the radian from the top down of arc increases gradually, buffer spring and breakwater fixed connection are passed through to one side of arc, water impact pushes buffer spring behind the arc and cushions, rivers remove certain radian along the arc and drop behind, pivoted angle grow behind the arc extrusion buffer spring when water impact dynamics is great, rivers reach the peak along the arc and drop behind the longer radian that flows, the length of buffering increases, possess better buffer capacity, can cushion the impact of rivers, increase flood prevention plate's stability, simultaneously can be according to the effect of the intensity automatic adjustment buffering of rivers, increase effective buffer distance when water impact dynamics is great, intelligent degree is higher.
Preferably, the lifting rod is rotatably connected with a hook rod at one end far away from the lifting plate, the hook rod is fixedly connected with a hook at one end far away from the lifting rod, and a reinforcing rod is installed at one end far away from the lifting rod between two sides of the inner wall of the control groove.
Preferably, the base includes the fixing base, the draw-in groove has evenly been seted up at the top of fixing base, the inner wall bottom sliding connection of draw-in groove has the screens piece, the top one end of screens piece runs through the draw-in groove and extends to the outside of fixing base, the top and the bracing piece of screens piece rotate to be connected, put the breakwater comparatively smooth subaerially, then put the fixing base in the position that is close to the breakwater, the horizontal migration bracing piece is until the outside of fixing base, with screens piece alignment suitable position behind the draw-in groove lateral shifting bracing piece, move to the draw-in groove inside until the screens piece, can adjust the support position of bracing piece and base after the flood prevention board installation, place the base in comparatively smooth place, increase flood prevention plate's stability.
Preferably, one side of the water baffle is fixedly connected with a convex block, one side of the water baffle, which is far away from the convex block, is provided with a sliding groove, and the convex block is in sliding connection with the inner wall of the sliding groove.
The invention provides a flood prevention plate which can be suitable for a concave-convex road surface. The method has the following beneficial effects:
(1) the flood prevention plate suitable for the rugged road surface can be installed on the rugged ground for flood prevention, and the environmental adaptability of the flood prevention plate is improved.
(2) This flood prevention plate that can be applicable to unsmooth road surface, the laminating degree with ground is high, can avoid water to ooze from flood prevention plate bottom, has realized the waterproof effect of the higher degree of flood prevention plate.
(3) This flood prevention board that can be applicable to unsmooth road surface, the removal direction after the bag is filled in the restriction of spacing net is extruded, and the device blocks when avoiding flood prevention board to use the back and reseing, has improved the reliability that flood prevention board used.
(4) This flood prevention board that can be applicable to unsmooth road surface possesses better buffer capacity, can cushion the impact of rivers, increases flood prevention board's stability.
(5) This flood prevention board that can be applicable to unsmooth road surface can increase effective buffer distance when the impact force of rivers is great according to the effect of the intensity automatic adjustment buffering of rivers, and intelligent degree is higher.
(6) This flood prevention board that can be applicable to unsmooth road surface can adjust the support position of bracing piece and base after the installation of flood prevention board, places the base in comparatively level and smooth place, increases flood prevention board's stability.
Drawings
FIG. 1 is a schematic side view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is an internal cross-sectional view of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3 according to the present invention;
FIG. 5 is a schematic view of the base structure of the present invention.
In the figure: 1-water baffle, 2-filling groove, 3-filling bag, 4-pulling plate, 5-control groove, 6-support, 7-pulling rod, 8-limiting groove, 9-limiting device, 901-limiting spring, 902-lifting plate, 903-limiting net, 10-supporting rod, 11-base, 111-fixing seat, 112-clamping groove, 113-clamping block, 12-buffer device, 121-arc plate, 122-buffer spring, 13-sliding plate, 14-pulling rope, 15-hook rod, 16-hook, 17-reinforcing rod, 18-communicating groove, 19-convex block and 20-sliding groove.
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.
Examples of which are illustrated in the accompanying drawings, wherein like 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.
Example one
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a flood prevention board that can be applicable to unsmooth road surface, including breakwater 1, fill groove 2 has been seted up to breakwater 1's bottom, breakwater 1 all runs through to the both sides bottom one end of fill groove 2, sliding connection has filling bag 3 between the inner wall both sides of fill groove 2, filling bag 3's inside packing has the filler, the top sliding connection that lies in filling bag 3 between the inner wall both sides of fill groove 2 has lifting plate 4, lifting plate 4 and 3 fixed connection of filling bag, control groove 5 has been seted up at breakwater 1's top, intercommunication groove 18 has been seted up to control groove 5's bottom one end, intercommunication groove 18 and fill groove 2 intercommunication, the inner wall bottom fixedly connected with support 6 of control groove 5, it is connected with lifting rod 7 to rotate between the both sides of support 6, lifting rod 7's one end runs through intercommunication groove 18 and rotates with lifting plate 4 to be connected.
The equal sliding connection in inner wall both sides of filling groove 2 has slide 13, slide 13 and 3 fixed connection of filling, and slide 13's top fixedly connected with lifting rope 14, the one end that slide 13 was kept away from to lifting rope 14 and lifting rope 4 fixed connection.
The one end that the lifting rod 7 kept away from the lifting plate 4 rotates and is connected with couple pole 15, and the one end fixedly connected with couple 16 that the lifting rod 7 was kept away from to couple pole 15, and the anchor strut 17 is installed to the one end of keeping away from the lifting rod 7 between the inner wall both sides of control box 5.
One side of the water baffle 1 is fixedly connected with a convex block 19, one side of the water baffle 1, which is far away from the convex block 19, is provided with a sliding groove 20, and the convex block 19 is in sliding connection with the inner wall of the sliding groove 20.
When the water baffle device is used, the water baffle plate 1 is placed on the road surface, the supporting rod 10 is inclined to support the ground, the hook 16 is taken down from the reinforcing rod 17, the lifting rod 7 is lifted upwards, the lifting rod 7 drives the lifting plate 4 to descend, the filling bag 3 and fillers in the filling bag are pressed outside the filling groove 2, the filling bag 3 and the fillers in the filling bag descend to extrude the ground, and the convex block 19 of the other water baffle plate 1 is tightly clamped in the sliding groove 20 for connection.
Example two
Referring to fig. 1-4, the present invention provides a technical solution: on the basis of embodiment one, spacing groove 8 has been seted up to breakwater 1's bottom symmetry, spacing groove 8's bottom one end and packing groove 2 intercommunication, stop device 9 is installed to the spacing inslot 8, stop device 9 includes spacing spring 901, the top of spacing spring 901 and spacing groove 8's inner wall top fixed connection, the bottom fixedly connected with lifter plate 902 of spacing spring 901, lifter plate 902 and spacing groove 8's inner wall sliding connection, the spacing net 903 of bottom fixedly connected with of lifter plate 902, the material of spacing net 903 is wear-resistant material, the bottom one end of spacing net 903 run through pack groove 2 and with the lifter plate 902 fixed connection of opposite side.
During the use, place breakwater 1 on the road surface, bracing piece 10 supports ground after the slope, get off couple 16 from anchor strut 17 and then go up lifting handle 7, lifting handle 7 drives lifting handle 4 and descends, lifting handle 4 is wrapped up by spacing net 903 after squeezing filling bag 3 and inside filler downwards, spacing net 903 is by filling bag 3 after squeezing downwards pulling spacing spring 901 is tensile, press lifting handle 7 downwards after the flood prevention board uses, lifting handle 7 drives lifting handle 4 and fills bag 3 and rises to filling inslot 2 inside, spacing net 903 does not fill bag 3 after the extrusion by spacing spring 901 inside pulling spacing groove 8 can.
EXAMPLE III
Referring to fig. 1-4, the present invention provides a technical solution: on the basis of the first embodiment, the buffer device 12 is installed on one side of the water baffle 1 far away from the support rod 10, the buffer device 12 comprises an arc-shaped plate 121, the arc-shaped plate 121 is rotatably connected with the water baffle 1, the radian of the arc-shaped plate 121 is gradually increased from top to bottom, and one side of the arc-shaped plate 121 is fixedly connected with the water baffle 1 through the buffer spring 122.
During the use, place breakwater 1 on the road surface, support ground after bracing piece 10 slope, extrusion buffer spring 122 cushions behind rivers impact arc 121, and rivers drop after removing certain radian along arc 121, and arc 121 extrudees the pivoted angle grow behind buffer spring 122 when rivers impact dynamics is great, and rivers reach the peak after the longer radian of arc flow and drop can.
Example four
Referring to fig. 1-4, the present invention provides a technical solution: on the basis of embodiment one, one side of breakwater 1 rotates through bracing piece 10 and is connected with base 11, and base 11 includes fixing base 111, and draw-in groove 112 has evenly been seted up at the top of fixing base 111, and the inner wall bottom sliding connection of draw-in groove 112 has screens piece 113, and the top one end of screens piece 113 runs through draw-in groove 112 and extends to the outside of fixing base 111, and the top and the bracing piece 10 of screens piece 113 rotate to be connected.
During the use, put breakwater 1 on comparatively level and smooth subaerial, then put fixing base 111 in the position that is close to breakwater 1, horizontal migration bracing piece 10 is up to the outside of fixing base 111, with card position piece 113 horizontal migration bracing piece 10 behind the draw-in groove 112 of aiming at suitable position, it can to move inside card position piece 113 to the draw-in groove 112.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (1)
1. The utility model provides a can be applicable to flood prevention board on unsmooth road surface, includes breakwater (1), its characterized in that: the water baffle is characterized in that a filling groove (2) is formed in the bottom of the water baffle (1), one end of the bottom of each side of the filling groove (2) penetrates through the water baffle (1), a filling bag (3) is connected between two sides of the inner wall of the filling groove (2) in a sliding manner, filler is filled in the filling bag (3), a pulling plate (4) is connected between two sides of the inner wall of the filling groove (2) above the filling bag (3) in a sliding manner, the pulling plate (4) is fixedly connected with the filling bag (3), a control groove (5) is formed in the top of the water baffle (1), a communicating groove (18) is formed in one end of the bottom of the control groove (5), the communicating groove (18) is communicated with the filling groove (2), a support (6) is fixedly connected to the bottom of the inner wall of the control groove (5), and a pulling rod (7) is rotatably connected between two sides of the support (6), one end of the lifting rod (7) penetrates through the communication groove (18) and is rotatably connected with the lifting plate (4), the bottom of the water baffle (1) is symmetrically provided with a limiting groove (8), one end of the bottom of the limiting groove (8) is communicated with the filling groove (2), a limiting device (9) is installed in the limiting groove (8), one side of the water baffle (1) is rotatably connected with a base (11) through a support rod (10), and one side of the water baffle (1) away from the support rod (10) is provided with a buffer device (12); the limiting device (9) comprises a limiting spring (901), the top of the limiting spring (901) is fixedly connected with the top of the inner wall of the limiting groove (8), the bottom of the limiting spring (901) is fixedly connected with a lifting plate (902), the lifting plate (902) is connected with the inner wall of the limiting groove (8) in a sliding mode, the bottom of the lifting plate (902) is fixedly connected with a limiting net (903), the limiting net (903) is made of wear-resistant materials, and one end of the bottom of the limiting net (903) penetrates through the filling groove (2) and is fixedly connected with the lifting plate (902) on the other side; the buffer device (12) comprises an arc-shaped plate (121), the arc-shaped plate (121) is rotatably connected with the water baffle (1), the radian of the arc-shaped plate (121) is gradually increased from top to bottom, and one side of the arc-shaped plate (121) is fixedly connected with the water baffle (1) through a buffer spring (122); the base (11) comprises a fixed seat (111), clamping grooves (112) are uniformly formed in the top of the fixed seat (111), a clamping block (113) is connected to the bottom of the inner wall of the clamping groove (112) in a sliding mode, one end of the top of the clamping block (113) penetrates through the clamping groove (112) and extends to the outside of the fixed seat (111), and the top of the clamping block (113) is rotatably connected with the supporting rod (10); sliding plates (13) are connected to two sides of the inner wall of the filling groove (2) in a sliding mode, the sliding plates (13) are fixedly connected with the filling bag (3), a lifting rope (14) is fixedly connected to the top of each sliding plate (13), and one end, far away from the sliding plates (13), of each lifting rope (14) is fixedly connected with a lifting plate (4); one end, far away from the lifting plate (4), of the lifting rod (7) is rotatably connected with a hook rod (15), one end, far away from the lifting rod (7), of the hook rod (15) is fixedly connected with a hook (16), and one end, far away from the lifting rod (7), of the inner wall of the control groove (5) is provided with a reinforcing rod (17) between two sides; one side of the water baffle (1) is fixedly connected with a convex block (19), one side of the water baffle (1) far away from the convex block (19) is provided with a sliding groove (20), and the convex block (19) is in sliding connection with the inner wall of the sliding groove (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010840390.9A CN112030868B (en) | 2020-08-20 | 2020-08-20 | Flood prevention plate suitable for concave-convex road surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010840390.9A CN112030868B (en) | 2020-08-20 | 2020-08-20 | Flood prevention plate suitable for concave-convex road surface |
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| Publication Number | Publication Date |
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| CN112030868A CN112030868A (en) | 2020-12-04 |
| CN112030868B true CN112030868B (en) | 2022-08-09 |
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| CN202010840390.9A Expired - Fee Related CN112030868B (en) | 2020-08-20 | 2020-08-20 | Flood prevention plate suitable for concave-convex road surface |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114150617B (en) * | 2022-01-04 | 2023-05-02 | 临沂市供热和住房保障中心 | Waterlogging-preventing directional drainage flood prevention wall for hydraulic engineering |
| CN116219951B (en) * | 2023-03-28 | 2024-02-23 | 射阳县海涂开发有限责任公司 | Beach is bred and is reclamation dykes and dams structure |
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| CN209584963U (en) * | 2018-12-04 | 2019-11-05 | 漳州市龙文区飞月新材料技术有限公司 | A kind of flood control baffle |
| CN210086190U (en) * | 2019-04-11 | 2020-02-18 | 云南康鑫建筑有限公司 | Hydraulic engineering construction breakwater device |
| CN110552319A (en) * | 2019-09-21 | 2019-12-10 | 曾旭 | Water conservancy flood prevention board |
| CN110700183A (en) * | 2019-11-01 | 2020-01-17 | 上海市城市建设设计研究总院（集团）有限公司 | Foldable assembled self-stabilizing flood prevention blocking drainage facility |
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