CN217175161U - Anti-overflow and anti-clogging rainwater grate - Google Patents
Anti-overflow and anti-clogging rainwater grate Download PDFInfo
- Publication number
- CN217175161U CN217175161U CN202220926997.3U CN202220926997U CN217175161U CN 217175161 U CN217175161 U CN 217175161U CN 202220926997 U CN202220926997 U CN 202220926997U CN 217175161 U CN217175161 U CN 217175161U
- Authority
- CN
- China
- Prior art keywords
- grate
- grates
- warp
- slope
- rainwater
- 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
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Road Paving Structures (AREA)
Abstract
The utility model provides a prevent anti stifled rainwater comb of silt that overflows comprises following two parts: warp and weft grate systems and a diversion slope; the warp and weft grate system is a hollow rainwater grate system formed by mutually vertical grates in the warp and weft directions; the diversion slope is a downward broken line type plate or an arc-shaped plate starting between the grates on the water inlet sides of the warp and weft grate systems, and an included angle between the whole line type of the diversion slope and the horizontal plane is from small to large from the water inlet end. The utility model discloses a prevent that it grates under the big condition of discharge or longitudinal gradient more to flow anti stifled rainwater of silt, prevent that the effect that flows more is better, be particularly suitable for being used for torrential rainy period urban waterlogging rainwater to comb and receive water and big longitudinal gradient road rainwater comb and receive water, reached the effect of preventing flowing more that the intention is not arrived.
Description
Technical Field
The utility model belongs to the technical field of drainage engineering, in particular to side ditch among the road engineering, the rainwater grate of transversal ditch also are applicable to the rainwater grate of rainwater well head everywhere such as square.
Background
Definition of the phenomenon of cross-flow: the overflow refers to the phenomenon that water flow directly passes over the rainwater grate and does not enter the rainwater well.
The generation mechanism of the overflow phenomenon: the reasons for this are as follows: excess water flows into a rainwater grate; secondly, the road gradient is too steep, and the flow rate of water cannot be reduced; and the opening rate of the rain grate is small (including clogging), and the drainage is insufficient.
The overflow phenomenon is cumulative, and the overflow is more serious the more the rainwater grate is positioned below the water flow direction.
In road engineering, a side ditch and a catch ditch of a steep slope section are influenced by a large slope, surface runoff has a cross-flow phenomenon, and a rainwater grate has a poor water collecting effect, so that water is accumulated on a road surface. The situation is frequently seen in urban tunnel sections, in heavy rain, a large amount of surface runoff crosses rainwater grates of side ditches and transverse ditches, the rainwater grate has low water collecting efficiency, water is accumulated on the road surface, even more, life and property loss is caused, and the road traffic safety under urban waterlogging increasingly attracts national attention.
Particularly, in recent years, more and more rare extremely-heavy rainstorm conditions occur for multiple times, even in non-steep slope sections, serious overflow phenomena occur in side ditches and cross ditches of the road surface under the condition of over-fast surface runoff, the rainwater grate has poor water collecting effect under the working condition, a large amount of accumulated water on the surface is caused, municipal workers need to lift rainwater well covers, rainwater can be discharged quickly, and the extremely-large workload which is difficult to finish within a short period of time is brought. In addition, due to the lack of protection of the rainwater grate, the uncovered rainwater well becomes a killer on the road, and passing vehicles and pedestrians can be trapped in the rainwater well to cause loss of life and property.
Therefore, the rainwater grate anti-overflow is realized by adopting an economic and easy-to-operate method, the water collection of the rainwater grate is ensured, and the problem is urgently needed to be researched and solved.
The existing rainwater grate comprises a rainwater grate CN202010067332.7, a rainwater grate CN202010291998.0, a welding-free rainwater grate CN202110946311.7, a rainwater grate CN201511011331.6, a side rainwater grate CN201811448972.1, a composite resin rainwater grate CN202010883270.7, a cut-off rainwater grate CN201610206702.4, a rainwater grate CN201910298234.1 convenient to clean, a rainwater grate with a large drainage amount (CN 201610912653.6) and a novel rainwater separation system CN201410254468.3 "a rainwater grate (patent number: CN 202020901338.5)", "a novel rainwater grate (patent number: CN 201720351011.3)" suitable for sponge city use, "a multi-functional assembled gutter inlet and construction method (patent number: CN 202010896141.1)" all fail to consider the function of rainwater grate to prevent the overflow, under the condition that the road surface gradient is steep, or the surface runoff velocity is high under the rainstorm operating mode, this kind of rainwater grate has serious overflow problem, the actual water collecting effect is very poor, a large amount of rainwater overflow, cause the surface ponding, bring very big potential safety hazard.
At present, people pay more and more attention to the problem of urban inland inundation, the occurrence frequency of extreme rainstorm is higher and higher, the function of preventing the rainwater grate from overflowing is realized through improving the traditional rainwater grate at the first inlet of surface runoff, and the condition that no water is accumulated on the road surface of the extreme rainstorm weather or a large longitudinal slope is very necessary is ensured. In addition, the rainwater grate after the research and development improvement realizes the function of preventing deposits such as fallen leaves from blocking the water inlet.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provide an anti-overflow and anti-clogging rainwater grate.
The utility model discloses the technical problem that solve adopts following technical scheme to realize:
the anti-overflow anti-clogging rainwater grate comprises the following two parts: warp and weft grate systems and a diversion slope;
the warp and weft grate system is a hollow rainwater grate system formed by mutually vertical grates in the warp and weft directions;
the diversion slope is a downward broken line type plate or an arc-shaped plate starting between the grates on the water inlet sides of the warp and weft grate systems, and an included angle between the whole line type of the diversion slope and the horizontal plane is from small to large from the water inlet end.
The utility model discloses a further technique:
preferably, the longitudinal grates are perpendicular to the water inlet and arranged along the water flow direction, and the latitudinal grates are perpendicular to the longitudinal grates;
the diversion slope is arranged between the warp-wise grates, the two ends of the diversion slope and the warp-wise grates are fully adhered with the downward broken line-shaped plates or the arc-shaped plates, and the diversion slope is not in contact with the weft-wise grates in space.
Preferably, the longitudinal grate bars are plate-shaped, and the latitudinal grate bars are strip-shaped.
Preferably, the interval between 1 to a plurality of latitudinal grates on the upper part of the diversion slope is enlarged.
Preferably, the latitudinal grate bars in the first water inlet side are arranged to be projected downwards beyond two thirds of the total length in the plane of the diversion slope.
Preferably, for the rainwater grate with bidirectional water inflow, the diversion slopes which are the same as those of the warp-wise grates are arranged between the weft-wise grates, the diversion slope structures of the weft-wise grates are the same as those of the warp-wise grates, and the intervals between 1 and more warp-wise grates on the upper portion of the diversion slopes are enlarged.
Preferably, the water inlet side first-channel latitudinal grate is arranged to project downwards beyond two thirds of the total length in the plane of the diversion slope, and the water inlet side first-channel latitudinal grate is arranged to project downwards beyond two thirds of the total length in the plane of the diversion slope.
Preferably, the guide slope starting end to the end part is divided into a guide slope starting line and a guide slope second-level line, the included angle between the guide slope starting line and the horizontal plane is 10-25 degrees, and the included angle between the guide slope second-level line and the horizontal plane is 25-45 degrees.
Preferably, the line in the guide slope initial line and the guide slope secondary line is a straight line or a circular arc tangent line.
The utility model has the advantages that:
the utility model discloses a prevent that it grates under the big condition of discharge or longitudinal gradient more to flow anti stifled rainwater of silt, prevent that the effect that flows more is better, be particularly suitable for being used for torrential rainy period urban waterlogging rainwater to comb and receive water and big longitudinal gradient road rainwater comb and receive water, reached the effect of preventing flowing more that the intention is not arrived.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and 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 these drawings without creative efforts;
FIG. 1 is a schematic plan view of a rectangular anti-overflow anti-clogging rain grate;
FIG. 2 is a view taken from the line I-I in FIG. 1;
FIG. 3 is a view II-II of FIG. 1;
FIG. 4 is a schematic plan view of a circular anti-overflow anti-clogging rain grate;
FIG. 5 is a view taken from I-I in FIG. 4;
FIG. 6 is a view from II-II of FIG. 4;
FIG. 7 is a schematic view of the working mechanism of the anti-overflow and anti-clogging rain grate (forming an air layer);
FIG. 8 is a view taken from line I-I of FIG. 7;
FIG. 9 is a schematic view of the working mechanism (vacuum state) of the anti-overflow and anti-clogging rain grate;
FIG. 10 is a view taken from I-I of FIG. 9;
FIG. 11 is a schematic view of the working mechanism of the anti-overflow and anti-clogging rain grate (forming a negative pressure state);
FIG. 12 is a view taken from I-I of FIG. 11;
in the figure: 1-warp grate, 2-weft grate, 3-diversion slope, 3-1-diversion slope initial line and 3-2-diversion slope secondary line.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the working mechanism, those skilled in the art can obtain other embodiments without creative efforts, which all belong to the protection scope of the present invention.
Specific embodiments of the present invention will be described below with reference to the accompanying drawings.
Referring to fig. 1-3, an anti-overflow anti-clogging rain grate has a square structure, one side of which is filled with water, and comprises the following two parts: warp and weft grate bar systems and a diversion slope.
The anti-overflow anti-clogging rainwater grate comprises the following two parts: warp and weft grate systems and a diversion slope;
the warp and weft grate system is a hollow rainwater grate system formed by mutually vertical grates in the warp and weft directions; wherein the longitudinal grate bars 1 are vertical to the water inlet and arranged along the water flow direction, and the latitudinal grate bars 3 are vertical to the longitudinal grate bars; the longitudinal grate bars are plate-shaped, and the latitudinal grate bars are strip-shaped. The radial grate bars are preferably load-bearing flat steel, the spacing is preferably 3cm, the height of the steel plate is preferably 3.8-7.5cm, the latitudinal grate bars are preferably twisted square steel, round steel or flat steel cross bars, the spacing is preferably 5cm, and the projection length of the plane of the diversion slope is preferably 10 cm.
The diversion slope 3 is started between grate bars for rainwater grate water inflow, the diversion slope is arranged between warp-wise grate bars, two ends of the diversion slope and the warp-wise grate bars are fully adhered with downward broken line-shaped plates or arc-shaped plates, included angles between the overall line type and the horizontal plane are from small to large from the water inflow end, the diversion slope is not in contact with the latitudinal grate bar in space, and the distance between 1 to a plurality of latitudinal grate bars on the upper portion of the diversion slope is increased.
In this embodiment, the latitudinal grate bars in the first water inlet side are arranged to project downwards at the end part of the flow guide slope.
The water guiding slope can simultaneously bring the effect of outwards pushing floaters in hydraulics, enhance the pushing and floating effects on floaters such as fallen leaves and the like, realize that sundries such as fallen leaves and the like are far away from the water guiding slope and then are accumulated on the grate bars, and prevent the water inlet from being blocked.
The guide slope starting end to the end part is divided into a guide slope starting line 3-1 and a guide slope second-level line 3-2, the included angle between the guide slope starting line and the horizontal plane is 10-25 degrees, and the included angle between the guide slope second-level line and the horizontal plane is 25-45 degrees.
The line in the initial line of the diversion slope and the second level line of the diversion slope is a straight line.
Referring to fig. 7-12, the working mechanism is as follows:
(1) the characteristic feature of the anti-overflow rainwater grate different from the rainwater grate in the prior art is that a diversion slope is additionally arranged to provide a water guide surface inclined downwards, and when water flows into the rainwater grate, the water flow of the free falling body (the faster the speed, the larger the water quantity, the longer the water throwing distance) impacts on the diversion slope. The impact line and the initial line of the free falling body of the water flow form an air layer (air sac-considering the enclosure effect of the grates at two sides).
(2) The air enclosed in the air layer (air bladder) moves downward under the guide of the water flow, and the air layer (air bladder) becomes a vacuum state.
(3) The vacuum state forms negative pressure, and the negative pressure shows that the diversion slope generates huge attraction on water flow, so that the diversion slope is highly viscous with water.
(4) The vacuum state is continuously maintained by the water flow, and the high-viscosity state is always maintained by the flow guide slope, so that the overflow of the rainwater grate is prevented.
Referring to fig. 4-6, the structure of the anti-overflow anti-clogging rain grate is a circular structure, the edge is filled with water, and the principle is the same as that of fig. 1.
The utility model discloses can also be used for the rainwater grate of two-way intaking, its structural feature is similar with the structure of the rainwater grate of one-way intaking, be equipped with between latitudinal direction grate with the warp direction grate the same water conservancy diversion slope between, the water conservancy diversion slope structure of latitudinal direction grate is the same with the water conservancy diversion slope of warp direction grate structure, 1 to many warp direction grate intervals on water conservancy diversion slope upper portion are stretched greatly.
Example 1: the anti-overflow anti-clogging rainwater grate with the diameter of 400mm multiplied by 500mm passes through an indoor hydraulic test, and the water receiving percentage data under different longitudinal slopes and water flows are shown in the following table.
Under the same conditions, the rainwater grate without the diversion slope is 400mm multiplied by 500mm, and the water receiving percentage data under different longitudinal slopes and water flows through indoor hydraulic tests are shown in the following table. In addition, the amount of the increasing materials of the diversion slope of the anti-overflow type rainwater grate only accounts for 7.3 percent of that of the traditional rainwater grate.
400mm 500mm prevent overflowing stifled rainwater comb of silt, through the indoor hydraulics test, under different longitudinal slopes and discharge, receive water percentage than do not set up the water conservancy diversion slope traditional rainwater comb under the same condition and receive the water yield greatly increased.
Example 2: the anti-overflow anti-clogging rainwater grate with the diameter of 400mm multiplied by 700mm passes through an indoor hydraulic test, and the water receiving percentage data under different longitudinal slopes and water flows are shown in the following table.
Under the same conditions, the rainwater grate without the diversion slope is 400mm multiplied by 700mm, and the water receiving percentage data under different longitudinal slopes and water flows through indoor hydraulic tests are shown in the following table. In addition, the amount of the increasing materials of the diversion slope of the anti-overflow type rainwater grate only accounts for 4.9 percent of that of the traditional rainwater grate.
400mm 700mm prevent overflowing stifled rainwater comb of silt, through the indoor hydraulics test, under different longitudinal slopes and discharge, receive water percentage than do not set up the water conservancy diversion slope traditional rainwater comb under the same condition and receive the water yield greatly increased.
The utility model provides a prevent overflowing anti stifled rainwater comb that becomes silted up has very good prevent the effect of overflowing to 400mm 500 mm's rainwater comb is the example, even if discharge is 20L/s, and the longitudinal slope is under 20%'s condition, also can reach 90% receipts water yield, and the relative ratio be, the grate receipts water yield that does not establish the water conservancy diversion slope under the same condition only is 40.17%, the utility model discloses rainwater comb receives water yield increase 49.83% than traditional rainwater comb. Take 400mm 700 mm's rainwater comb as an example, even if discharge is 20L/s, under the 20% condition of longitudinal slope, also can reach 94.69% receipts water yield, and the contrast is, does not establish the grate receipts water yield on water conservancy diversion slope under the same condition and only is 48.87%, the utility model discloses rainwater comb receives water yield increase 45.82% than traditional rainwater comb. The utility model discloses a prevent that it grates under the big condition of discharge or longitudinal gradient more to flow anti stifled rainwater of silt, prevent that the effect that flows more is better, be particularly suitable for being used for torrential rainy period urban waterlogging rainwater to comb and receive water and big longitudinal gradient road rainwater comb and receive water, reached the effect of preventing flowing more that the intention is not arrived.
It is comprehensive to see, the utility model provides an anti stifled rainwater of silt is combed more, through addding the water conservancy diversion slope, only increases 4.9% -7.3% with the material volume, can realize being close 50% and receive the water yield increase, prevents that the effect of flowing more is showing, has reached the not intended technological effect.
Indeed, the embodiment of the utility model provides an in the water conservancy diversion slope, can be applied to rainwater well lid, various apron etc. of intaking all belong to the utility model discloses a protection scope.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The overflow-preventing and clogging-resisting rain grate is characterized by comprising the following two parts: warp and weft grate systems and a diversion slope;
the warp and weft grate system is a hollow rainwater grate system formed by mutually vertical grates in the warp and weft directions;
the diversion slope is a downward broken line type plate or an arc-shaped plate starting between the grates on the water inlet sides of the warp and weft grate systems, and an included angle between the whole line type of the diversion slope and the horizontal plane is from small to large from the water inlet end.
2. The anti-overflow anti-clogging rain grate as set forth in claim 1, wherein: the longitudinal grate bars are perpendicular to the water inlet and arranged along the water flow direction, and the latitudinal grate bars are perpendicular to the longitudinal grate bars;
the diversion slope is arranged between the warp-wise grates, the two ends of the diversion slope and the warp-wise grates are fully adhered with the downward broken line-shaped plates or the arc-shaped plates, and the diversion slope is not in contact with the weft-wise grates in space.
3. The anti-overflow anti-clogging rain grate of claim 2, wherein: the longitudinal grate bars are plate-shaped, and the latitudinal grate bars are strip-shaped.
4. The anti-overflow anti-clogging rain grate of claim 2, wherein: the distance between 1 or more latitudinal grates on the upper part of the diversion slope is increased.
5. The anti-overflow anti-clogging rain grate of claim 2, wherein: the latitudinal grate in the first passage on the water inlet side is arranged to project downwards beyond two thirds of the total length in the plane of the flow guide slope.
6. The anti-overflow anti-clogging rain grate of claim 2, wherein: for the rainwater grate with two-way water inflow, the same flow guide slope as that of the warp grates is arranged between the weft grates, the flow guide slope structure of the weft grates is the same as that of the warp grates, and the distance between 1 or more warp grates on the upper portion of the flow guide slope is increased.
7. The anti-overflow anti-clogging rain grate of claim 6, wherein: the latitudinal grate at the first path of the water inlet side is set to be more than two thirds of the total length of the downward projection in the plane of the diversion slope, and the longitudinal grate at the first path of the water inlet side is set to be more than two thirds of the total length of the downward projection in the plane of the diversion slope.
8. The anti-overflow anti-clogging rain grate of claim 6, wherein: the guide slope starting end to the end part is divided into a guide slope starting line and a guide slope second-level line, the included angle between the guide slope starting line and the horizontal plane is 10-25 degrees, and the included angle between the guide slope second-level line and the horizontal plane is 25-45 degrees.
9. The anti-overflow anti-clogging rain grate of claim 8, wherein: the line in the initial line of the diversion slope and the second level line of the diversion slope is a straight line or a circular arc tangent line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220926997.3U CN217175161U (en) | 2022-04-21 | 2022-04-21 | Anti-overflow and anti-clogging rainwater grate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220926997.3U CN217175161U (en) | 2022-04-21 | 2022-04-21 | Anti-overflow and anti-clogging rainwater grate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217175161U true CN217175161U (en) | 2022-08-12 |
Family
ID=82708200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220926997.3U Active CN217175161U (en) | 2022-04-21 | 2022-04-21 | Anti-overflow and anti-clogging rainwater grate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217175161U (en) |
-
2022
- 2022-04-21 CN CN202220926997.3U patent/CN217175161U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205314071U (en) | Multistage fan -shaped abrupt slope dissipation structure | |
| CN217175161U (en) | Anti-overflow and anti-clogging rainwater grate | |
| CN210529629U (en) | Debris flow drainage groove | |
| CN114718176A (en) | Anti-overflow and anti-clogging rainwater grate and working mechanism thereof | |
| CN106869090A (en) | Dreg-blocking board sub-assembly and diversion tunnel debris retaining Slagoff method | |
| CN207193911U (en) | A kind of stage beam pattern debris flow drainage groove | |
| CN107806065B (en) | Stage beam flow type debris flow drainage groove and application thereof | |
| CN215562326U (en) | Prevention and control system for blocking, shunting and water-stone separation of debris flow | |
| CN103614986B (en) | It a kind of is applicable to the pressure free current inlet method that Tailings Dam drains off floodwaters | |
| CN212223596U (en) | Drainage channel for bridge | |
| CN206529878U (en) | A kind of municipal drainage community storm detention tank | |
| CN213233325U (en) | Cutting and guiding structure applied to debris flow prevention and control | |
| CN210976028U (en) | Prevent road of jam and lay and use drainage structures | |
| CN212865781U (en) | Hydraulic engineering is with high-efficient durable flood bank | |
| CN209011265U (en) | A kind of gutter with dredging function | |
| CN208183679U (en) | A kind of underflow energy dissipation structure | |
| CN205530138U (en) | Intake trash device | |
| CN109853712B (en) | Road drainage structure | |
| CN217710585U (en) | Overflow weir for precipitating suspended matters in river | |
| CN211815973U (en) | Silt-proof structure of dam-free water intake channel | |
| CN215405888U (en) | Insert ecological gabion revetment of willow formula | |
| CN217678436U (en) | Road surface accumulated water drainage channel for highway | |
| CN211849318U (en) | Anti-blocking spillway | |
| CN219710509U (en) | Drainage tank for highway engineering | |
| CN217601118U (en) | High-water-permeability asphalt pavement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |