CN209779837U - Urban road inlet for stom water high efficiency cuts dirty device - Google Patents

Abstract

The utility model relates to an efficient sewage interception device for urban road gullies, which comprises a collecting well body and a water collecting pipe; the rainwater grate is installed to the upper end of collecting the well body, collects the internal vertical flow sand settling device that is equipped with of well, and the rainwater grate is for hanging basket formula structure, and the rainwater grate is two segmentation structures from top to bottom, and vertical flow sand settling device includes from last to the reflection part, silt that set up down hold back the part, anti-mud resuspension part, and the reflection part is the splayed structure that falls, and silt holds back the part and is rectangular pyramid structure, and anti-mud resuspension part is the rectangular terrace structure that falls. The utility model discloses cut dirty integrated device that reforms transform technique, vertical flow desilting device combined together with the inlet for stom water, realize the dual interception of particulate matters such as great solid pollutant and silt.

Description

Urban road inlet for stom water high efficiency cuts dirty device

Technical Field

the utility model belongs to the technical field of energy-concerving and environment-protective, especially, relate to a dirty device is cut to urban road inlet for stom water high efficiency.

Background

the gully is a facility for collecting surface water in a pipeline drainage system, is an accessory structure of a city drainage system, mainly comprises a water inlet grate, a well body, a branch pipe and the like, and is mainly divided into a partial ditch type, a flat grate type, a vertical grate type and a combined type according to forms. Gullies are typically located at a distance from a block, square, street intersection, and street gutters to collect rainwater above ground to prevent the rainwater from flooding a road or low lying area with water to impede traffic or damage the road. In a road drainage system, a rainwater inlet is not only a throat where rainwater runoff is collected by a rainwater pipe network of an urban road, but also a main channel where non-point-source pollutants enter a water environment. A large amount of silt generated by the 'high greenbelt' washing of the periphery of the road and part of solid pollutants on the road surface easily enter a drainage system through a rainwater port without any interception measure. In urban streets, particularly near restaurants, a large amount of leftovers, plastic bags and other domestic garbage are accumulated near the rainwater inlet, and a large amount of residual soup and the like containing grease, protein and starch directly flow into water bodies such as urban rivers and lakes along with rainwater after being poured into the rainwater inlet, so that serious pollution is caused to the urban water bodies. If the inlet for stom water takes place to block up because of rubbish is piled up, in case the torrential rain comes, drainage flood discharge function will receive serious influence, causes road ponding, seriously influences resident's trip and safety. Therefore, the method controls the garbage and pollutants entering the urban drainage pipe network from the source, and is one of economic and effective means for reducing water pollution and urban waterlogging.

Traditional urban road drainage engineering focuses on the safety problem of road surface drainage, but as the bottleneck that urban rainwater pipe networks collect rainwater, the design of most rainwater mouths can not effectively intercept pollutants entering the rainwater mouths. In addition, due to poor management and artificial pollution to the rainwater openings in the arid period, the blockage of the pipelines and the rainwater openings reduces the drainage capacity of a pipe network, and great pressure is brought to urban drainage. By reasonably designing and building the gutter inlet sewage interception facility, runoff pollutants can be controlled from a pipe network source, water and soil loss can be prevented, the gutter inlet can be prevented from being blocked, and the urban waterlogging phenomenon can be effectively relieved. For a long time, the structure and function of the rainwater port are actively explored and improved in many countries and cities, and the current rainwater sewage interception technology mainly comprises the sewage interception reconstruction of the traditional rainwater port, an integrated sewage interception rainwater port and a rainwater port sewage interception temporary protection technology, wherein the traditional rainwater port sewage interception reconstruction technology and the integrated sewage interception rainwater port are the main forms of the rainwater port sewage interception technology at home and abroad. The rainwater port sewage interception modification technology is a technology which aims at intercepting pollutants of a rainwater port by additionally arranging a sewage interception device in the conventional rainwater port without changing the structure of the conventional rainwater port. The rainwater port sewage interception reconstruction technology is low in cost and is suitable for sewage interception reconstruction of the existing urban rainwater port and sewage interception of a newly-built urban rainwater port. Although the gutter inlet cuts dirty transformation technology and can effectively solve the problem that the gutter inlet cuts dirty, this technique can only hold back the great rubbish thing that gets into the gutter inlet, receives the restriction of traditional gutter inlet structure to getting rid of particulate matter such as silt in the rainwater runoff. When the rainfall intensity is high, most of silt and other particulate matters carrying nitrogen, phosphorus and other chemical substances can directly enter the urban water body along with the rainwater pipe network, so that the growth of algae in the water body is promoted, and the water quality of the urban water body is influenced. When the rainwater velocity of flow descends, cause silt to deposit, pile up in drainage pipe network, can pollute the comparatively limpid rainwater in later stage, long-term accumulation will lead to drainage system's water capacity decline, hinders the rainwater in time to get rid of, blocks up inlet for stom water and pipeline even, if contain corrosive substance such as acidity in the silt, still will shorten drainage pipe's life. Therefore, the particles such as silt in the rainwater runoff are also important components for sewage interception of the rainwater inlet. The integral type cuts dirty inlet for stom technique is like the "subloop" inlet for stom of Etsu in the country rule, but is not suitable for the pre-buried connecting pipe 1% slope of inlet for stom in the internal standard, and the sediment bottom can deposit water in addition, causes the bottom to clear up the difficulty, does not have the rainfall for a long time and probably causes its quality of water to deteriorate to and give off phenomenons such as stench.

In recent years, there are many modification techniques related to the technology of the sewage intercepting hanging basket for the gully, such as filling a filter material around the sewage intercepting net (patent CN 203741978U), adopting a double-layer sewage intercepting hanging basket (patent CN 204212253U), and the like. However, according to the structure of the existing gully, the conventional sewage interception basket hanging technology has the defects of unsmooth drainage and unobvious interception effect on particles such as silt in the reconstruction of the sewage interception basket hanging technology, and can not meet the dual requirements of flood prevention and interception of particles such as silt in the gully.

Consequently, for solving the interior granule pollutant of rainwater mouth and piling up the problem, provide one kind and cut dirty integrated device that reform transform technique, vertical flow desilting device combined together with the rainwater mouth, realize that the urban road rainwater mouth high efficiency that particulate matter such as great solid pollutant and silt were held back cuts dirty device, have important realistic meaning.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's is not enough, provides an integrated device that sewage blocking reconstruction technique, vertical flow desilting device combined together with the inlet for stom water, realizes the high-efficient dirty device of intercepting of urban road inlet for stom water of the dual interception of particulate matter such as great solid pollutant and silt.

The utility model discloses take following technical scheme to realize:

An efficient sewage interception device for urban road gullies comprises a collection well body and a water collection pipe arranged on the side wall of the collection well body;

the collecting well body is of a structure with an opening at the upper end and a closed lower end, and a slag discharge port is arranged at the bottom of the collecting well body;

Collect the upper end of the well body and install the rainwater grate, collect the internal vertical flow sand settling device that is equipped with of well, the rainwater grate is for hanging basket formula structure, metal grid net formation string basket gap of overflow has evenly been seted up on the lateral wall of rainwater grate, just the rainwater grate is two segmentation structures from top to bottom, the lateral wall lower part and the diapire upper berth of rainwater grate are equipped with the filter layer, vertical flow sand settling device includes from last to lower reflection part, the part of holding back silt, the anti-mud resuspension part that sets up, the reflection part is the splayed structure that falls, silt holds back the part and is rectangular pyramid structure, anti-mud resuspension part is the rectangular terrace of edge structure that falls.

Preferably, the collecting well body is of a cubic structure with an upper opening and a lower end being closed, and the inner wall of the collecting well body is of a porous inner wall structure.

further preferably, the reflecting component comprises a first reflecting plate and a second reflecting plate which are symmetrically arranged, the upper edges of the first reflecting plate and the second reflecting plate are fixedly connected with the inner wall of the collecting well body respectively, and the inclination angle between the first reflecting plate and the collecting well body is 30 ~ 60 degrees.

preferably, the pipe orifice of the water collecting pipe is positioned above the reflecting component, the pipe orifice of the water collecting pipe is installed on the side wall of the collecting well body, and the distance between the pipe orifice of the water collecting pipe and the first reflecting plate and the second reflecting plate in the reflecting component is 0.25-0.5 m.

Further preferably, silt is held back the rectangular pyramid structure that the part encloses for four first curb plates, anti-mud resuspension part is the four truncated pyramid structures that fall that four second curb plates enclose, the upper edge and the internal wall of collection well looks rigid coupling of second curb plate in the anti-mud resuspension part, silt is held back four corner department of the lower part of part and is passed through supporter and second curb plate internal wall rigid coupling respectively.

Preferably, the filter layer is geotextile or nylon net.

The utility model has the advantages that:

1. The utility model discloses a cut dirty integrated device that reforms transform technique, vertical flow desilting device combined together with the inlet for stom water, aim at not influencing under the prerequisite of inlet for stom water flood prevention function, realize the dual interception of particulate matters such as great solid pollutant and silt, purify the rainwater quality of water that gets into the rainwater pipe network then, reduce the pollution of rainwater runoff to urban water.

2. The utility model discloses well collection well body equipment is convenient, makes things convenient for later stage to the maintenance, the change of equipment, and the bottom is equipped with the slag discharging hole, and the convenience is cleared up silt.

3. The utility model discloses in, receive the water pipe setting in the heavy husky device top of vertical flow, can guarantee when the rainfall is great that the rainwater is direct to get into drainage system through receiving the water pipe, therefore can not influence the flood prevention function at the inlet for stom water, rise when collecting the internal water level of well, the clear water through the sediment can get into the particulate matter such as silt that drainage pipe network system got into the urban water along with receiving the water pipe and reduce.

4. The utility model discloses in, the great solid contaminant in the rainwater runoff can be held back to the rainwater grate of collecting well body upper end installation, plays tentatively holding back the effect to the pollutant in the rainwater, and the rainwater grate design is two segmentation structures from top to bottom, has guaranteed the ability of crossing water at the inlet for stom water when improving holding back efficiency of pollutant, does not influence its flood prevention function.

5. The utility model discloses in, the high efficiency that vertical flow desilting device can realize particulate matters such as silt is held back to play mud-water separation's effect, and dwell time is short, and area is little, is fit for using widely bottom the inlet for stom water.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic front view of the collection well;

Fig. 3 is a schematic longitudinal sectional structure of fig. 2.

In the figure: 1. the device comprises a rainwater grate, 2. a hanging basket overflow port, 3. a filter layer, 4. a reflection part, 41. a first reflection plate, 42. a second reflection plate, 5. a silt interception part, 6. a sludge anti-resuspension part, 7. a water collecting pipe, 8. a collecting well body and 9. a slag discharge port.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in fig. 1-3, an efficient sewage interception device for urban road gullies comprises a collection well body and a water collection pipe 7 arranged on the side wall of the collection well body; the collecting well body 8 is of a structure with an opening at the upper end and a closed lower end, and the bottom of the collecting well body 8 is provided with a slag discharge port 9; collect the upper end of well body 10 and install rainwater grate 1, be equipped with the heavy husky device of vertical flow in the collection well body 10, rainwater grate 1 is for hanging basket formula structure, metal grid net formation string basket gap 2 has evenly been seted up on rainwater grate 1's the lateral wall, just rainwater grate 1 is two segmentation structures from top to bottom, rainwater grate 1's lateral wall lower part and diapire upper berth are equipped with filter layer 3, the heavy husky device of vertical flow includes from last to lower reflection part 4 who sets up, silt hold back part 5, anti-mud resuspension part 6, reflection part 4 is the splayed structure of falling, silt hold back part 5 is the rectangular pyramid structure, anti-mud resuspension part 6 is the rectangular pyramid structure of falling.

Example (b): the utility model discloses a cut dirty integrated device that reforms transform technique and vertical flow desilting device combined together with the inlet for stom water, aim at not influencing under the prerequisite of inlet for stom water flood prevention function, reach the high efficiency and hold back the effect of great pollutant and small particle solid pollutant, purify the rainwater quality of water that gets into the rainwater pipe network, reduce the pollution of rainwater runoff to urban water. The utility model comprises a collecting well body, when in use, the collecting well body 8 is arranged below the ground, rainwater, pollutants and the like can flow into the collecting well body from the opening at the upper end of the collecting well body 8, a water collecting pipe 7 is arranged on the side wall of the collecting well body, the water collecting pipe 7 is arranged above the vertical flow sand settling device, when the rainfall is large, rainwater can be ensured to directly enter a drainage system through the water collecting pipe 7, thus the flood prevention function of the rainwater port can not be influenced; collect the upper end of well body 8 and install rainwater grate 1, be equipped with the vertical flow sand setting device in the collection well body 8, effect through rainwater grate 1, can hold back the great solid pollutant in the rainwater runoff, play preliminary interception effect to pollutant in the rainwater, then particulate matters such as silt in the rainwater runoff are held back through the vertical flow sand setting device before the rainwater gets into pipe network system, along with the increase of ground rainwater collection volume, collect the internal water level of well and rise, particulate matters such as silt that the clear water through deposiing can get into water drainage pipe network along with receiving water pipe 7 and reduce the entering pipe network system and get into the urban water. The rainwater grate 1 is of a hanging basket type structure, metal grid meshes are uniformly arranged on the side wall of the rainwater grate 1 to form hanging basket overflow ports 2, so that a water seepage effect can be achieved, thick solid dirt can be intercepted by the rainwater grate 1, and the hanging basket overflow ports 2 can prevent the rainwater grate 1 from being blocked so as to reduce the overflowing capacity; in order to ensure the sewage interception effect, particularly, flushing solids in initial rainwater can be intercepted, and drainage is not unsmooth due to the rainwater grate 1 in heavy rain, the rainwater grate 1 can be designed into an upper-lower two-section structure, filter layers 3 are paved on the lower part of the side wall and the bottom wall of the rainwater grate 1, and the filter layers 3 are arranged to ensure strong water permeability on the premise of intercepting smaller pollutants; the middle vertical flow sand settling device can realize high-efficiency interception of particles such as silt, is short in retention time and small in occupied area, is suitable for being popularized and used at the bottom of the rainwater inlet, and the device also considers the design of material infiltration performance, avoids the occurrence of accumulated water at the bottom of the rainwater inlet, and is convenient to disassemble and clean in the later period. In addition, the collection well body in the device is convenient for later-stage maintenance and replacement of equipment, and the bottom of the collection well body is provided with a slag discharge port 9 which is convenient for cleaning the sediment deposited in the collection well body.

The vertical flow sand settling device comprises a reflection part 4, a sediment interception part 5 and an anti-sludge resuspension part 6 which are arranged from top to bottom, wherein the reflection part 4 is of an inverted splayed structure, the sediment interception part 5 is of a rectangular pyramid structure, the anti-sludge resuspension part 6 is of an inverted square frustum structure, the reflection part 4 is arranged below a water collecting pipe 7, a reflection plate in the reflection part 4 can reflect water in the water collecting pipe or rainwater flowing downwards from a rainwater grate, so that the rainwater impact energy can be reduced, the sludge can conveniently sink along the gravity of the reflection plate, the effect of primary mud-water separation is achieved, the sediment interception part 5 is arranged below the reflection part 4, a mud-water mixture flowing downwards through the reflection part 4 passes through the sediment interception part 5, the sediment interception part 5 is of a rectangular pyramid structure, the effect of guiding can be achieved, and the effect of preventing the silt from flowing upwards in a reverse flow can be achieved, the lower part of the sediment interception part 5 is provided with an anti-sludge resuspension device 6 which is of an inverted quadrangular frustum pyramid structure, sediment precipitated by the sediment interception part 5 can flow into the lower part of the anti-sludge resuspension device 6 through a gap between the sediment interception part 5 and the anti-sludge resuspension device 6 and then enter the bottom of the collecting well body so as to be discharged through a slag discharge port at the later stage, the vertical flow sand settling device can realize the sludge-water separation effect, namely when the water level in the well body rises, the sludge at the bottom of the well is difficult to float up to the pipe orifice of the water collection port 7 under the blocking of the sediment interception part 5 and the anti-sludge resuspension device 6, and precipitated clear water can enter a drainage pipe network along with the water collection pipe 7 so as to reduce particles such as sediment entering the pipe network system and entering the urban water, thereby.

This device high efficiency cuts dirty device and can be guaranteeing under the prerequisite that the inlet for stom water collected ground rainwater rapidly effectively, adopt the inlet for stom water to cut dirty string basket technique in order to hold back the great pollutant in the rainwater runoff, and set up the vertical flow desilting device in the inlet for stom water lower part in order to reach the desilting, the effect of rainwater infiltration, realize the dual interception of particulate matters such as great solid pollutant and silt, at rainwater grate 1, under the vertical flow desilting device combined action, not only can effectively hold back the big solid pollutant in the rainwater runoff, also can get rid of the small-particle footpath pollutant in the runoff, particulate matters such as silt that the reduction entering pipe network system got into the urban water, reduce the pressure of rainwater pipe network system. The device is easy to install, convenient to clean and maintain and does not influence the flood prevention function of the rainwater inlet.

Still further, can also be in the utility model discloses in consider, the collection well body 8 is upper portion opening lower extreme confined cube structure, the inner wall of the collection well body 8 is porous inner wall structure. This device makes things convenient for the later stage to the maintenance, change and the clearance of equipment, and the inner wall of collecting the well body 8 is porous adsorptivity material, and the pollutant of holding back in the hole can effectively be decomposed and get rid of through the effect of microorganism. It should be noted that, the structure of the collecting well 8 may be, but not limited to, a cubic structure, and the structure types such as a column shape, a prism shape, etc. may also be considered, and the structure and specification of the well may be determined according to the solid carried matter and the strength of the rainwater runoff, etc. of the site.

still further, can also be in the utility model discloses in consider, reflecting part 4 includes first reflecting plate 41, the second reflecting plate 42 that the symmetry set up, the top edge of first reflecting plate 41, the second reflecting plate 42 respectively with collect well body 8 inner walls looks rigid coupling, inclination between first reflecting plate 41, the second reflecting plate 42 and the collection well body 8 is 30 ~ 60. reflecting part 4 is located the below of receiving pipe 7, and first reflecting plate 41, the second reflecting plate 42 among the reflecting part 4 can reflect the rainwater that water in the receiving pipe or from collecting well body opening part downflow, not only can reduce rainwater impact energy, and the mud of being convenient for sinks along the reflecting plate moreover, reaches the effect of the preliminary separation of muddy water then.

still further, the present invention can be considered that the pipe orifice of the water collecting pipe 7 is located above the reflection component 4, the pipe orifice of the water collecting pipe 7 is installed on the side wall of the collecting well body 8, and the distance between the pipe orifice of the water collecting pipe 7 and the first reflection plate 41 and the second reflection plate 42 in the reflection component 4 is 0.25-0.5 m. The pipe orifice of the water collecting pipe 7 is positioned above the reflecting component 4, when the rainfall is large, rainwater can be guaranteed to directly enter a drainage system through the water collecting pipe 7, so that the flood prevention function of the rainwater port cannot be influenced, when the rainfall is small, the water level in the collecting well body rises along with the increase of the ground rainwater collection amount, and clear water precipitated by the vertical flow desilting device also enters a drainage pipe network along with the water collecting pipe 7.

Still further, can be in the utility model discloses in consider, silt is held back part 5 and is the rectangular pyramid structure that four first curb plates enclose, anti-mud resuspension part 6 is the four terrace with edge of falling that four second curb plates enclose, the top edge and the 8 inner walls of the collection well body rigid couplings of second curb plate in the anti-mud resuspension part 6, silt is held back four corner department of the lower part of part 5 and is passed through supporter and second curb plate inner wall rigid coupling respectively. The silt interception component 5 is of a rectangular pyramid structure and is formed by enclosing four first side plates, the four first side plates can play a role in downwards guiding rainwater flowing downwards from the reflection component, the lower part of the silt interception component is of a hollow structure and can also play a role in preventing silt from flowing upwards in a counter-current manner, four corner ends of the lower part of the silt interception component 5 are fixedly connected with the inner wall of the second side plate through supporting bodies respectively, the silt interception component 5 and the anti-sludge resuspension component 6 can be assembled into a whole through the supporting bodies, silt can flow into the position below the anti-sludge resuspension device 6 through a gap between the silt interception component 5 and the anti-sludge resuspension device 6, muddy water flowing downwards from the silt interception component 5 can flow into the position below the anti-sludge resuspension device 6 through a gap between the silt interception component 5 and the anti-sludge resuspension device 6, and the anti-sludge resuspension component 6 is, the mud and sand below the mud-water separation device can be prevented from flowing upwards and reversely, namely when the water level in the well body rises, the mud at the bottom of the well is difficult to float to the pipe orifice of the water receiving opening 7 under the blocking of the mud-water retention component 5 and the anti-mud resuspension component 6, and most of the mud is deposited at the bottom of the well body to play a role in mud-water separation.

Furthermore, it is also contemplated in the present invention that the filter layer 3 is made of geotextile or nylon net. The side wall of the rain grate 1 is uniformly provided with a metal grid net to form a hanging basket overflow port 2, the lower part of the side wall and the bottom wall of the rain grate 1 are paved with filter layers 3, the specifications of the upper part and the lower part of the rain grate 1 can be determined according to solid carried objects, rainwater runoff strength and the like of a used place, water around a collecting well body can permeate into the well body through the hanging basket overflow port 2, wherein the gaps of the metal grid net on the rain grate 1 are not too small and too sparse, enough overflow holes are needed to be formed, the influence on water passing capacity during strong rainfall is avoided, the filter layers 3 at the lower part and the bottom of the rain grate 1 can be not limited to geotextile, nylon net or special woven bag, and suitable materials can be developed, designed or selected according to specific water quality objects and requirements according to different conditions of various places, and the filter layers 3 are used for intercepting large solid impurities and part of fine pollutants in rainwater runoff, It should be noted that the gaps of the filter layer 3 should not be too small to prevent blockage and influence the water permeability of solid contaminants such as silt.

To sum up, the utility model provides an integrated device that dirty transformation technique, vertical flow desilting device combined together are cut to the inlet for stom water realizes the high-efficient device of cutting dirty of urban road inlet for stom water that intercepts of dual of particulate matters such as great solid pollutant and silt.

Claims (6)

1. The utility model provides a dirty device is cut to urban road inlet for stom water high efficiency, includes collection well body (8), locates receipts water pipe (7) on the collection well body lateral wall, its characterized in that:

the collecting well body (8) is of a structure with an opening at the upper end and a closed lower end, and a slag discharge port (9) is arranged at the bottom of the collecting well body (8);

Collect the upper end of well body (8) and install rainwater grate (1), be equipped with the heavy husky device of vertical flow in the collection well body (8), rainwater grate (1) is for hanging basket formula structure, metal check net formation string basket gap (2) have evenly been seted up on the lateral wall of rainwater grate (1), just rainwater grate (1) is two segmentation structures from top to bottom, the lateral wall lower part and the diapire upper berth of rainwater grate (1) are equipped with filter layer (3), the heavy husky device of vertical flow includes from last reflector part (4) to setting up down, silt holds back part (5), anti-mud resuspension part (6), reflector part (4) are the splayed structure that falls, silt holds back part (5) and is rectangular pyramid structure, anti-mud resuspension part (6) are the rectangular terrace structure that falls.

2. The urban road gutter inlet efficient sewage interception device according to claim 1, characterized in that: the collecting well body (8) is of a cubic structure with an upper opening and a lower end being closed, and the inner wall of the collecting well body (8) is of a porous inner wall structure.

3. the urban road gutter inlet high ~ efficiency sewage interception device according to claim 1 or 2, wherein the reflection part (4) comprises a first reflection plate (41) and a second reflection plate (42) which are symmetrically arranged, the upper edges of the first reflection plate (41) and the second reflection plate (42) are respectively fixedly connected with the inner wall of the collection well body (8), and the inclination angles between the first reflection plate (41) and the collection well body (8) and between the second reflection plate (42) and the collection well body (8) are 30 ~ 60 degrees.

4. The efficient sewage interception device for the urban road gutter inlet according to claim 3, characterized in that: the pipe orifice of the water collecting pipe (7) is positioned above the reflecting component (4), the pipe orifice of the water collecting pipe (7) is installed on the side wall of the collecting well body (8), and the distance between the pipe orifice of the water collecting pipe (7) and the first reflecting plate (41) and the second reflecting plate (42) in the reflecting component (4) is 0.25-0.5 m.

5. the urban road gutter inlet efficient sewage interception device according to claim 4, characterized in that: silt holds back four pyramid structures that part (5) enclose for four first curb plates, anti-mud resuspend part (6) are the four prismatic table structures that fall that four second curb plates enclose, the top edge of second curb plate and collection well body (8) inner wall looks rigid coupling in anti-mud resuspend part (6), four angle departments of the lower part that part (5) were held back to silt are respectively through supporter and second curb plate inner wall rigid coupling.

6. The urban road gutter inlet efficient sewage interception device according to claim 1, characterized in that: the filter layer (3) is made of geotextile or nylon net.