CN110616998A - Flood-proof device and flood-proof system for building entrance - Google Patents
Flood-proof device and flood-proof system for building entrance Download PDFInfo
- Publication number
- CN110616998A CN110616998A CN201911041462.7A CN201911041462A CN110616998A CN 110616998 A CN110616998 A CN 110616998A CN 201911041462 A CN201911041462 A CN 201911041462A CN 110616998 A CN110616998 A CN 110616998A
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- China
- Prior art keywords
- flood
- water tank
- water
- prevention device
- buoyancy body
- 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
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 113
- 230000002265 prevention Effects 0.000 claims abstract description 42
- 230000000452 restraining effect Effects 0.000 claims abstract description 9
- 230000009471 action Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 22
- 238000000926 separation method Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 230000000670 limiting effect Effects 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 210000002105 tongue Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B2009/007—Flood panels
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Special Wing (AREA)
Abstract
The invention relates to the technical field of constructional engineering and municipal engineering, and provides a flood prevention device, which comprises a water baffle for blocking flood, a water tank for the inflow of the flood, a buoyancy body capable of floating under the buoyancy action of the flood, and a restraining component for restraining the position of the buoyancy body, wherein the buoyancy body is arranged in the water tank, and the water baffle is arranged on the buoyancy body. The water tank is arranged below the platform, and the building inlet is plugged by the water baffle floated by flood in the water tank. The invention floats the water baffle to block flood by utilizing the buoyancy of the flood, has simple structure, easy realization and high reliability, does not need to waste manpower value and occupy space, and does not need to fear that flood prevention equipment can not be started after power failure.
Description
Technical Field
The invention relates to the technical field of constructional engineering and municipal engineering, in particular to a flooding prevention device and a flooding prevention system for a building entrance.
Background
The flood prevention design of the entrance and the exit commonly used in the current engineering is mainly to place flood prevention sand bags near the entrance and the flood prevention function is realized by piling up the sand bags by related personnel when the water body flows backward in the coming of rainstorm, and the method mainly has the following defects: 1. a special flood prevention material storage room or a special stacking point needs to be designed, so that the appearance is not attractive, and the occupied space is large; 2. due to the fact that the automatic intervention function is not available, people need to be attended to consume human resources in the flood season; 3. the sand bag is not good in flood prevention and sealing performance, water leakage is easy to occur, and people need to be on duty all the time during flood prevention; 4. cleaning the scene after the flood prevention is finished; 5. and partial places are assembled by adopting the matchboards to realize flood prevention, and a special flood prevention equipment storage room and special personnel on duty are required to be arranged in the scheme.
In the prior art, a motor or other electric energy is adopted to drive a similar rolling curtain anti-flooding device to achieve an anti-flooding effect, but the defects of the mode are obvious, and once the power is cut off, the anti-flooding effect cannot be achieved.
Disclosure of Invention
The invention aims to provide a flood prevention device and a flood prevention system for an entrance of a building, wherein a water baffle is floated by utilizing the buoyancy action of flood to separate the flood, the structure is simple and easy to realize, the reliability is extremely high, and the flood prevention device does not need to waste manpower value and occupy space and can not be started after power failure.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions: a flood prevention device comprises a water baffle for blocking flood, a water tank for the inflow of the flood, a buoyancy body capable of floating under the buoyancy action of the flood and a restraining component for restraining the position of the buoyancy body, wherein the buoyancy body is arranged in the water tank, and the water baffle is installed on the buoyancy body.
Furthermore, the restraint assembly comprises a cover plate which is covered on the notch of the water tank, the cover plate blocks the notch of the water tank, and the cover plate is provided with an opening for the water baffle to extend out.
Furthermore, a first sealing element is arranged at the opening of the cover plate, a second sealing element is arranged around the water baffle, the second sealing element extending out of the opening of the water baffle is matched and sealed with the first sealing element, and the water tank is provided with a water inlet hole for flood to enter the water tank.
Furthermore, the quantity of the water inlet holes is multiple and is arranged on the groove wall along the height direction, and at least one of the water inlet holes is opened.
Furthermore, the restraint assembly further comprises two limiting rollers arranged at the notch and used for clamping the water baffle, and the two limiting rollers are oppositely arranged at the edge of the opening.
Furthermore, the restraint subassembly still includes to be located along the direction of height the guided way in the basin, the buoyancy body slide set up in on the guided way.
Furthermore, a guide roller which slides on the guide rail is arranged on the buoyancy body.
Furthermore, the restraint subassembly still includes to locate along the direction of height the second guided way in the basin, the breakwater slides and sets up in the second guided way.
The water tank further comprises a rabbet component used for eliminating a gap at the notch of the water tank, the rabbet component comprises a first rabbet arranged at the notch of the water tank and a second rabbet capable of being occluded with the first rabbet, and the second rabbet is arranged on the buoyancy body.
The embodiment of the invention provides another technical scheme: a flood-proof system for building entrance comprises a platform arranged at the building entrance and the flood-proof device, wherein the water tank is arranged below the platform, and the building entrance is plugged by the water baffle floated by flood in the water tank.
Compared with the prior art, the invention has the beneficial effects that: the water baffle is floated by utilizing the buoyancy effect of the flood, so that the flood barrier is simple in structure, easy to realize and high in reliability, the labor force value is not wasted, the occupied space is not needed, and the flood prevention equipment cannot be started after power failure.
Drawings
Fig. 1 is a schematic cross-sectional view of a dry water tank of an anti-flooding apparatus according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view illustrating a water tank of an anti-flooding apparatus according to an embodiment of the present invention in a state of being not full;
fig. 3 is a schematic cross-sectional view of a water tank of a flooding prevention device according to an embodiment of the present invention in a full water state;
FIG. 4 is a partial schematic view of a flood protection system for an entrance of a building according to an embodiment of the present invention;
in the reference symbols: 1-a water baffle; 2-a water tank; 20-water inlet holes; 30-a cover plate; 31-sealing rubber strips; 32-opening; 33-limiting roller; 34-a first guide rail; 35-a guide roller; 36-a screw; 37-a second guide rail; 40-a first tongue-and-groove; 41-second tongue-and-groove; 5-a platform; 6-buoyancy body; a-outdoors; b-indoor.
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 to 3, an embodiment of the present invention provides a flood protection device, including a water baffle 1 for blocking flood, a water tank 2 for receiving the flood, a buoyant body 6 buoyant under the buoyancy of the flood, and a restraining component for restraining the position of the buoyant body 6, where the buoyant body 6 is disposed in the water tank 2, and the water baffle 1 is mounted on the buoyant body 6. In the existing flood prevention measures, two common modes are generally adopted, one mode is that flood prevention is realized by using piled flood prevention materials, but the mode needs a special flood prevention material storage room or a piling point, is not attractive and occupies space, and needs to consume manpower resources for guard due to the characteristic that the flood prevention materials need to be carried manually, in addition, the site needs to be cleaned after the flood prevention is finished, which is very inconvenient, the second mode is that a mode similar to a flood prevention roller shutter and the like need to be driven electrically or externally, which needs much labor saving compared with the first mode, the roller shutter is started to be put down to block flood when the flood prevention is needed, but once the emergency situations such as power failure, motor damage and the like occur, the flood prevention can not be carried out, and certain potential safety hazards exist. Based on the defect of above-mentioned two kinds of measures, this embodiment adopts the flood to have this natural principle of buoyancy, introduce the basin 2 with the flood, fill up basin 2 gradually along with water, can make breakwater 1 together of installing with buoyancy body 6 float, and then separation flood, in this device, in order to guarantee that the position of buoyancy body 6 does not change at will and then lead to breakwater 1 not to play good separation effect, adopt the restraint subassembly to retrain the position of buoyancy body 6, and then also retrain the position of breakwater 1 of locating on it. The mode of adopting this embodiment's advantage lies in, need not artifical guard also need not to adopt electric power to drive even more, according to local conditions, rationally uses flood, utilizes dire flood, makes it no longer dire. And when the flood retreated gradually, the water level in basin 2 also reduced gradually the back (the drainage can be discharged through natural modes such as sewer), and breakwater 1 can slowly descend along with the reduction of water level, gets back to former place gradually and can no longer form the separation, and this in-process does not need people to watch on, does not need people to clear up the scene at last yet again. It should be noted that the flood will slowly flow back, namely, the higher outer side will first flow back, and then the water in the water tank 2 will flow back, otherwise the outer water will enter the water tank 2 all the time, so there is no need to worry about that the water in the water tank 2 will not continuously float the water baffle 1, and the two actions are synchronous.
Referring to fig. 1-3, the restraining assembly includes a cover plate 30 covering the opening of the water tank 2, the cover plate 30 blocking the opening of the water tank 2 and the cover plate 30 having an opening 32 for the water baffle 1 to extend out. In the embodiment, the cover plate 30 is used to close the notch, and the notch is provided with an opening 32 for only the water baffle 1 to extend out, so that the function of restraining the water baffle 1 can be achieved. The cover 30 is provided to prevent excessive water from overflowing from the gutter 2, and in the above embodiment, the splash guard 1 is located close to the side of the chamber B, so that flood can be prevented from overflowing from the notch to the chamber B without using the cover 30. The cover plate 30 may be screwed onto the platform 5 of the portal by means of screws 36.
To further optimize the above solution, please refer to fig. 1-3, a first sealing element is disposed at the opening 32 of the cover plate 30, a second sealing element is disposed around the water baffle 1, the second sealing element of the water baffle 1 extending out of the opening 32 is sealed with the first sealing element in a matching manner, and the water tank 2 has a water inlet hole 20 for the flood to enter therein. In this embodiment, the cooperation of the first and second seals is designed to seal the slot as much as possible with the cover plate 30. Of course, the sealing is not so good in the above-described embodiment, so there is no fear that flood water cannot enter the sink 2. Whereas the inlet holes 20 are used to introduce the flood water since the slot openings are closed off in order to facilitate the entry of the flood water into the basin 2.
Further optimize above-mentioned scheme, first sealing member with the second sealing member is joint strip 31, what sealed mode adopted promptly is joint strip 31, and two sets of joint strip 31 butt joints, because joint strip 31 has certain elasticity, so the clearance can be eliminated after the two extrudes, plays good sealed effect. Of course, other sealing means are possible in the prior art, and are not described in detail.
Referring to fig. 1 to 3, as an optimized solution of the embodiment of the present invention, a plurality of water inlet holes 20 are arranged on a wall of the tank in a height direction, and at least one of the water inlet holes 20 is opened. In the present embodiment, the number of the water inlet holes 20 is optimized, and they are arranged in the height direction, so that the number of openings and which one is opened can be selected according to the preventive height of the flood level.
As an optimized scheme of the embodiment of the present invention, please refer to fig. 1 to 3, the constraining assembly further includes two limiting rollers 33 disposed at the notch for clamping the water baffle 1, and the two limiting rollers 33 are disposed at the edge of the opening 32 in an opposite manner. In this embodiment, the two limit rollers 33 can clamp the splash guard 1 to prevent it from falling down, so as to restrain its position and make it stably block the flood. Preferably, the two limiting rollers 33 are in rolling contact with the water baffle 1 to reduce friction, so that the water baffle 1 can move up and down more smoothly. The limiting roller 33 may be a roller, a rolling shaft, a rolling wheel, etc. It is further preferred that two stop rollers 33 are mounted below the cover plate 30 to simplify the mounting thereof.
As an optimized solution of the embodiment of the present invention, please refer to fig. 1 to fig. 3, the restriction assembly further includes a first guide rail 34 disposed in the water tank 2 along the height direction, and the buoyancy body 6 is slidably disposed on the first guide rail 34. In this embodiment, the first guide rail 34 is provided to define the moving path of the floating body, and the first guide rail 34 is preferably vertically arranged to ensure that the floating body is vertically lifted.
To further optimize the above solution, referring to fig. 1-3, a guiding roller 35 sliding on the first guiding rail 34 is installed on the buoyant body 6. In this embodiment, in order to reduce the friction between the buoyant body 6 and the first guide rail 34, the guide roller 35 is used to be in rolling contact with the first guide rail 34, i.e. the guide roller 35 can rotate, and it rolls on the first guide rail 34 as the buoyant body 6 moves upward, so that the friction can be reduced. The guide roller 35 may be a roller, or the like.
As an optimized solution of the embodiment of the present invention, please refer to fig. 1 to fig. 3, the restriction assembly further includes a second guide rail 37 disposed in the water tank 2 along the height direction, and the water baffle 1 is slidably disposed in the second guide rail 37. In this embodiment, the second guide rail may define a moving path of the water baffle 1, similar to the first guide rail, and will not be described herein again. Preferably, the second guide rail 37 may extend all the way out of the water tank 2 and continuously rise to a certain height, so that the splash guard 1 can be guided after being extended out of the water tank 2 to ensure stable movement of the splash guard 1. Preferably, solid grease may be applied to the second guide rail 37 extending out of the water tank 2 to further reduce friction and ensure smooth movement of the splash guard 1.
As an optimized solution of the embodiment of the present invention, referring to fig. 1 to fig. 3, the flood prevention device further includes a tongue-and-groove assembly for eliminating a gap at the notch of the water tank 2, where the tongue-and-groove assembly includes a first tongue-and-groove 40 disposed at the notch of the water tank 2 and a second tongue-and-groove 41 capable of engaging with the first tongue-and-groove 40, and the second tongue-and-groove 41 is disposed on the buoyant body 6. In this embodiment, the first tongue and groove 40 engages the second tongue and groove 41 to prevent flood water from overflowing the trough 2. Specifically, the first tongue-and-groove 40 may be installed below the cover plate 30, or may be directly installed at the groove, the corresponding second tongue-and-groove 41 is installed on the floating body 6, and when the floating body 6 rises to a proper position, the first tongue-and-groove 40 is engaged with the second tongue-and-groove 41 to form a waterproof structure. Preferably, the first and second tongues 40, 41 each have splines which engage in a snap-fit manner. Further preferably, a sealing rubber similar to the first sealing element and the second sealing element is arranged in the tooth groove to optimize the sealing effect.
As an optimized solution of the embodiment of the present invention, the buoyant body 6 may be made of foam plastic, which has a large buoyancy and is not high in cost, but needs to ensure its stability. The water tank 2 may be a concrete water tank 2 or a metal water tank 2, and the manufacturing cost is not high, but the water tank is firm and reliable.
As an optimized scheme of the embodiment of the invention, the water baffle 1, the water tank 2, the buoyancy body 6, the constraint component and the like can be prefabricated, and the water baffle, the water tank 2, the buoyancy body 6, the constraint component and the like can be regarded as a basic body and can be freely combined according to actual length requirements after being prefabricated.
Example two:
referring to fig. 1 to 4, an embodiment of the present invention provides a flood prevention system for a building entrance, including a platform 5 disposed at the building entrance and the above flood prevention device, wherein the water tank 2 is disposed below the platform 5, and the water baffle 1 floated by flood in the water tank 2 blocks the building entrance. In the present embodiment, the flood-proof device is applied to an entrance of a building, such as a subway entrance, a mall entrance, etc. Platform 5 supplies people to walk, it can connect the step, consequently establish basin 2 below platform 5 and can make above-mentioned flood prevention device just in time solve the flood prevention problem of entrance, it is specific, after making breakwater 1 float gradually as the flood in basin 2, breakwater 1 will block off the building entry, as shown in fig. 3, water is kept off at outdoor A, indoor B does not intake, in order to reach water-proof effects, simple structure easily realizes and the reliability is high, neither need again waste the power value of human resources, occupation space, also need not fear unable flood prevention equipment that starts after the outage.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A flood control device, includes the breakwater that is used for the separation flood, its characterized in that: the water tank is used for receiving flood, the water tank is used for receiving the flood, the buoyancy body can float under the buoyancy action of the flood, and the restraint assembly is used for restraining the position of the buoyancy body.
2. A flood prevention device as defined in claim 1, wherein: the restraint assembly comprises a cover plate covering the notch of the water tank, the cover plate blocks the notch of the water tank, and an opening for the water baffle to extend out is formed in the cover plate.
3. A flood prevention device as defined in claim 2, wherein: the water tank is characterized in that a first sealing element is arranged at the opening of the cover plate, a second sealing element is arranged around the water baffle, the second sealing element extending out of the opening of the water baffle is matched and sealed with the first sealing element, and the water tank is provided with a water inlet hole for flood to enter.
4. A flood prevention device according to claim 3, wherein: the quantity of the water inlet holes is multiple and is arranged on the wall of the tank along the height direction, and at least one of the water inlet holes is opened.
5. A flood prevention device as defined in claim 1, wherein: the restraint subassembly is still including locating two spacing rolls that are used for the centre gripping of notch department the breakwater, two spacing rolls relative arrangement in the open-ended edge.
6. A flood prevention device as defined in claim 1, wherein: the restraint subassembly still includes to locate along the direction of height the first guided way in the basin, the buoyancy body slide set up in on the first guided way.
7. A flood prevention device according to claim 6, wherein: and a guide roller which slides on the first guide rail is arranged on the buoyancy body.
8. A flood prevention device as defined in claim 1, wherein: the restraint subassembly still includes to locate along the direction of height the second guided way in the basin, the breakwater slides and sets up in the second guided way.
9. A flood prevention device as defined in claim 1, wherein: the water tank is characterized by further comprising a rabbet component used for eliminating a gap at the notch of the water tank, the rabbet component comprises a first rabbet arranged at the notch of the water tank and a second rabbet capable of being meshed with the first rabbet, and the second rabbet is arranged on the buoyancy body.
10. The utility model provides a building entry anti-flooding system, is including locating the platform of building entry, its characterized in that: a flood-proof device according to any one of claims 1 to 9, wherein the water tank is arranged below the platform, and the water baffle plate floated by the flood in the water tank blocks the building entrance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911041462.7A CN110616998A (en) | 2019-10-30 | 2019-10-30 | Flood-proof device and flood-proof system for building entrance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911041462.7A CN110616998A (en) | 2019-10-30 | 2019-10-30 | Flood-proof device and flood-proof system for building entrance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110616998A true CN110616998A (en) | 2019-12-27 |
Family
ID=68927192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911041462.7A Pending CN110616998A (en) | 2019-10-30 | 2019-10-30 | Flood-proof device and flood-proof system for building entrance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110616998A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944300A (en) * | 2021-09-14 | 2022-01-18 | 广州地铁设计研究院股份有限公司 | Hydrodynamic force anti-backflow air shaft |
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| CN1963034A (en) * | 2005-11-07 | 2007-05-16 | 株式会社神户制钢所 | Movable wall type dike |
| CN103628448A (en) * | 2013-10-18 | 2014-03-12 | 赖秉洪 | Water-logging-proof system for underground building |
| CN204299395U (en) * | 2014-11-05 | 2015-04-29 | 浙江巨统新型建材有限公司 | For the proof mechanism of water of energy saving door and window |
| CN106978855A (en) * | 2017-05-03 | 2017-07-25 | 上海建筑设计研究院有限公司 | A kind of floatage-type water-retaining structure |
| CN107700422A (en) * | 2016-08-09 | 2018-02-16 | 白景魁 | A kind of automatic river levee of floating with flood flood control |
| CN109844228A (en) * | 2016-06-13 | 2019-06-04 | Rsa防护技术有限公司 | Method and system for scalable flood control wall system |
| CN211623223U (en) * | 2019-10-30 | 2020-10-02 | 中铁第四勘察设计院集团有限公司 | Flood-proof device and flood-proof system for building entrance |
-
2019
- 2019-10-30 CN CN201911041462.7A patent/CN110616998A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1963034A (en) * | 2005-11-07 | 2007-05-16 | 株式会社神户制钢所 | Movable wall type dike |
| CN103628448A (en) * | 2013-10-18 | 2014-03-12 | 赖秉洪 | Water-logging-proof system for underground building |
| CN204299395U (en) * | 2014-11-05 | 2015-04-29 | 浙江巨统新型建材有限公司 | For the proof mechanism of water of energy saving door and window |
| CN109844228A (en) * | 2016-06-13 | 2019-06-04 | Rsa防护技术有限公司 | Method and system for scalable flood control wall system |
| CN107700422A (en) * | 2016-08-09 | 2018-02-16 | 白景魁 | A kind of automatic river levee of floating with flood flood control |
| CN106978855A (en) * | 2017-05-03 | 2017-07-25 | 上海建筑设计研究院有限公司 | A kind of floatage-type water-retaining structure |
| CN211623223U (en) * | 2019-10-30 | 2020-10-02 | 中铁第四勘察设计院集团有限公司 | Flood-proof device and flood-proof system for building entrance |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113944300A (en) * | 2021-09-14 | 2022-01-18 | 广州地铁设计研究院股份有限公司 | Hydrodynamic force anti-backflow air shaft |
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