Sponge type gutter structure for urban road

Abstract

The present application provides a kind of sponge type ditch structure for urban road, including sponge type ditch and multiple rainwater regulating unit, rainwater regulating unit divides sponge type ditch into multiple ditch units, and rainwater regulating unit includes water storage device;Wherein, water storage device includes water retaining wall component and drain pipe, water retaining wall component includes first water retaining wall and second water retaining wall, and first water retaining wall and second water retaining wall are spaced apart in the extension direction of sponge type ditch, and overflow type drainage well with top opening is formed between first water retaining wall and second water retaining wall, overflow hole for communicating sponge type ditch is opened in first water retaining wall and second water retaining wall, and first drainage slope consistent with driving direction is provided in the bottom of sponge type ditch, drain pipe is laid in the bottom of overflow type drainage well, drainage hole is opened in the sidewall of overflow type drainage well, and drain pipe is communicated with external rainwater pipeline by penetrating drainage hole.The present application can meet annual runoff total quantity control rate and other sponge control indexes without relying on road cross section form and green space rate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of urban road sponge facilities, and particularly relates to a sponge type gutter structure for urban roads. BACKGROUND

[0002] In recent years, the construction of a sponge city that is natural storage, natural penetration and natural purification, and the realization of the benign cycle of urban rainwater storage, detention, penetration, purification, use and discharge, has become a scientific choice for urban rainwater management in China. However, the rainwater on the road surface is highly polluted and is not suitable as a recycled water source, which determines that the main goal of the sponge design of urban roads is storage, detention, purification and discharge.

[0003] In the prior art, the land used for roads needs to have a high green rate for the construction of sunken green land and ecological grass ditches to achieve rainwater storage within the red line, so as to meet the planning annual net flow total control rate, pollutant total removal rate and other sponge design control indicators. However, the green rate of the current urban roads is generally not high, so that the traditional urban road sponge facilities do not have construction conditions.

[0004] Therefore, a sponge type gutter structure for urban roads is provided to solve or at least alleviate the above problems. SUMMARY

[0005] The main purpose of the present application is to provide a sponge type gutter structure for urban roads to solve the problem that the sponge facilities of the prior art for urban roads are highly dependent on the road cross-sectional form and green rate, and cannot meet the sponge control indicators such as the annual runoff total control rate in the case of insufficient greening rate.

[0006] To achieve the above purpose, the present application provides a sponge type gutter structure for urban roads, which comprises a sponge type gutter and a plurality of rainwater storage units arranged at intervals along the extension direction of the sponge type gutter. The rainwater storage units separate the sponge type gutter into a plurality of gutter units, and each rainwater storage unit comprises a water storage device. The sponge type gutter is arranged at the transition connection between the sidewalk and the motor vehicle lane and extends along the extension direction of the motor vehicle lane. In addition,

[0007] The water storage device comprises a water retaining wall assembly and a drain pipe; wherein the water retaining wall assembly comprises a first water retaining wall and a second water retaining wall which are arranged at intervals along the extension direction of the sponge-type side ditch, the first water retaining wall and the second water retaining wall both extend upward from the bottom of the sponge-type side ditch and are arranged higher than the top of the sponge-type side ditch, and the first water retaining wall and the second water retaining wall form an overflow-type drain well with an open top between them; the first water retaining wall and the second water retaining wall are both provided with overflow holes which communicate with the sponge-type side ditch at positions close to the top of the sponge-type side ditch, and the bottom of the sponge-type side ditch is provided with a first drain slope which is consistent with the driving direction of the motor vehicle lane.

[0008] The drain pipe is laid at the bottom of the overflow-type drain well, the side wall of the overflow-type drain well is provided with a drain hole, and the drain pipe communicates with an external rainwater pipeline through the drain hole.

[0009] Preferably, each rainwater storage unit further comprises a rainwater purification device, the rainwater purification device comprises a pollution interception box and a connecting infiltration pipe; wherein the pollution interception box is fixed at the bottom of the sponge-type side ditch, is arranged close to the second water retaining wall, and is arranged at the inflow side of the second water retaining wall, the pollution interception box is filled with filter material; the side wall of the pollution interception box close to the second water retaining wall is provided with a first communication hole through which the connecting infiltration pipe penetrates; the second water retaining wall is provided with a second communication hole corresponding to the first communication hole; the connecting infiltration pipe comprises a water inlet end and a drain end which are arranged oppositely, the water inlet end extends into the pollution interception box through the first communication hole, and the drain end extends into the overflow-type drain well through the second communication hole, so as to drain the purified water in the pollution interception box into the overflow-type drain well through the connecting infiltration pipe.

[0010] Preferably, the rainwater purification device further comprises a sedimentation chamber which is recessed downward from the bottom of the sponge-type side ditch, and is arranged between the second water retaining wall and the pollution interception box.

[0011] Preferably, the bottom of the sponge-type side ditch is recessed downward to form a mounting groove which matches the pollution interception box, and the pollution interception box is embedded in the mounting groove, and the depth of the mounting groove is smaller than the depth of the sedimentation chamber.

[0012] Preferably, the connecting infiltration pipe comprises an inner infiltration pipe and an outer infiltration pipe, the inner infiltration pipe is inserted into the pollution interception box through the first communication hole, and the outer infiltration pipe communicates with the overflow-type drain well through the second communication hole, and the inner infiltration pipe and the outer infiltration pipe are connected through a union joint.

[0013] Preferably, the inner infiltration pipe comprises oppositely arranged first and second ends, the first end extends into the sewage interception box through the first communication hole, and the first end is bent to make the water inlet direction of the inner infiltration pipe perpendicular to the water flow direction of the sponge-type side ditch, the first end is provided with a pipe cap, a plurality of pipe holes of the inner infiltration pipe are formed in the pipe cap, and the second end is in communication with the outer infiltration pipe.

[0014] Preferably, the rainwater purification device further comprises a filter screen, and the filter screen is installed on the side of the overflow hole away from the overflow drainage well.

[0015] Preferably, the rainwater storage unit comprises a drainage device and a crossbeam assembly arranged above the sponge-type side ditch; the crossbeam assembly comprises first and second crossbeams arranged at intervals along the extension direction of the sponge-type side ditch, the first and second crossbeams are arranged along the transverse direction of the sponge-type side ditch, and the first crossbeam is arranged close to the second water retaining wall; the drainage device comprises first, second and third rainwater gratings connected in sequence along the extension direction of the sponge-type side ditch; the first rainwater grating is arranged on the top of the first and second water retaining walls and covers the overflow drainage well; one end of the second rainwater grating is arranged on the second water retaining wall, and the other end is arranged on the first crossbeam, the second rainwater grating is arranged opposite to the sediment chamber and covers the sediment chamber; one end of the third rainwater grating is arranged on the first crossbeam, and the other end is arranged on the second crossbeam, the third rainwater grating is arranged opposite to the sewage interception box and covers the sewage interception box.

[0016] Preferably, the drainage device further comprises a road cover plate assembly and a hollow cover plate assembly; wherein the road cover plate assembly comprises at least one first road cover plate and one second road cover plate arranged along the extension direction of the sponge-type gutter; the first road cover plate is spliced with the first rainwater grate along the extension direction of the sponge-type gutter, one end of the first road cover plate is arranged on the top of the first water retaining wall, and the other end is arranged on the top of the sponge-type gutter; the second road cover plate is spliced with the third rainwater grate along the extension direction of the sponge-type gutter, one end of the second road cover plate is arranged on the top of the second cross beam, and the other end is arranged on the top of the sponge-type gutter; the hollow cover plate assembly comprises at least one first hollow cover plate and one second hollow cover plate arranged along the extension direction of the sponge-type gutter; the first hollow cover plate is spliced with the first road cover plate along the extension direction of the sponge-type gutter, the second hollow cover plate is spliced with the second road cover plate along the extension direction of the sponge-type gutter, the first road cover plate is provided with a second water drainage slope facing the first hollow cover plate, and the second road cover plate is provided with a third water drainage slope consistent with the direction of the second water drainage slope, so that water flows into the sponge-type gutter through the first hollow cover plate and the second hollow cover plate.

[0017] Preferably, a plurality of curb stones are arranged between the sidewalk and the drainage device, the plurality of curb stones are arranged along the extension direction of the sponge-type gutter in sequence, and the top of the curb stone is flush with the road surface of the sidewalk; the top of the curb stone is provided with a water drainage slope surface from the sidewalk to the drainage device, so that water on the sidewalk flows to the drainage device.

[0018] Compared with the prior art, the sponge-type gutter structure for urban roads has the following beneficial effects:

[0019] The sponge-type gutter structure for urban roads comprises a sponge-type gutter and a plurality of rainwater storage units arranged along the extension direction of the sponge-type gutter in sequence, each rainwater storage unit divides the sponge-type gutter into a plurality of gutter units, and each rainwater storage unit comprises a water storage device; the sponge-type gutter is arranged at the transition connection between a sidewalk and a motor vehicle lane and extends along the extension direction of the motor vehicle lane. Specifically, the rainwater on the motor vehicle lane and the sidewalk flows into the water storage device through the drainage device, is blocked by the first water retaining wall and the second water retaining wall, and starts to store water; when the water level is higher than the overflow hole, the rainwater flows into the overflow-type drainage well through the overflow hole, and is then discharged to the external rainwater pipeline through the drainage pipe arranged in the overflow-type drainage well.

[0020] In addition, the stored rainwater is discharged to an external rainwater pipeline after being silted or sewage intercepted by a rainwater purification device. The sponge-type gutter in the application can not depend on the green land within the road red line range by using the original gutter structure of the road, so as to realize the retention, accumulation, purification and discharge of the road surface rainwater. The sponge-type gutter can meet the sponge index control requirements of the total annual runoff and the pollutant removal rate of the rainwater in the road catchment area through the water storage device and the rainwater purification device. The sponge-type gutter does not reduce the road quality standard, does not cause waterlogging of the roadbed, does not affect the safety and comfort of vehicle passing, and does not change the traditional road cross section form. In addition, the sponge-type gutter has low construction cost, can be cast in situ, can be prefabricated and assembled, has simple construction, and has simple later management and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the structures shown in the drawings without creative labor.

[0022] Figure 1 is a top view of a single gutter unit in an embodiment of the present application;

[0023] Figure 2 is a top view of a single gutter unit in an embodiment of the present application; Figure 1 is a sectional view along the direction of B-B in the above figure;

[0024] Figure 3 is a sectional view along the direction of the bottom plane of a single gutter unit in an embodiment of the present application;

[0025] Figure 4 is a plan view of a sponge-type gutter in an embodiment of the present application;

[0026] Figure 5 is a plan view of a sponge-type gutter in an embodiment of the present application; Figure 4 is a sectional view along the direction of C-C in the above figure;

[0027] Figure 6 is a sectional view along the direction of D-D in the above figure; Figure 4

[0028] is a sectional view along the direction of D-D in the above figure; Figure 7 Figure 2 is an enlarged view of A in the above figure.

[0029] The purposes, functional characteristics and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings.

[0030] Explanation of reference numerals:

[0031] ​10, sponge type ditch; 110, first cross beam; 120, second cross beam; 130, curb; 20, water storage device; 210, first water retaining wall; 220, second water retaining wall; 230, overflow type drainage well; 240, overflow hole; 250, drainage pipe; 30, rainwater purification device; 310, sewage interception box; 311, mounting groove; 320, connecting infiltration pipe; 321, inner infiltration pipe; 3211, first end; 3212, second end; 322, outer infiltration pipe; 330, mud settling chamber; 340, filter screen; 40, drainage device; 410, first rainwater grate; 420, second rainwater grate; 430, third rainwater grate; 440, first road cover plate; 450, second road cover plate; 460, first hollow cover plate. DETAILED DESCRIPTION

[0032] It should be understood that the specific embodiments described herein are merely exemplary and do not limit the present application.

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0035] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of those skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed by the present application.

[0036] Please refer to the accompanying drawings Figures 1-7The application provides a sponge type ditch structure for urban roads, which comprises a sponge type ditch 10 and a plurality of rainwater storage units (not shown in the figure) arranged at intervals along the extension direction of the sponge type ditch 10, the rainwater storage units separate the sponge type ditch 10 into a plurality of ditch units (not shown in the figure), each of the rainwater storage units comprises a water storage device 20; wherein the sponge type ditch 10 is arranged at the transition connection between a sidewalk and a motor vehicle lane and extends along the extension direction of the motor vehicle lane.

[0037] It is worth noting for those skilled in the art that the width, height and other dimensions of the sponge type ditch 10 in the application can be calculated and determined according to the half-width road catchment area, the comprehensive runoff coefficient and the local rainfall corresponding to the planning annual total runoff control rate, and the structural strength of the sponge type ditch 10 needs to meet the requirements of vehicle dynamic load and road load, which is not described in detail here and is well known to those skilled in the art. It should be noted that the transition connection described in the application can be a road facility belt, and can also be a reserved area between a sidewalk and a motor vehicle lane, which can be set according to actual needs.

[0038] The water storage device 20 comprises a water retaining wall assembly (not shown in the figure) and a drain pipe 250; wherein the water retaining wall assembly comprises a first water retaining wall 210 and a second water retaining wall 220 arranged at intervals along the extension direction of the sponge type ditch 10, the first water retaining wall 210 and the second water retaining wall 220 both extend upward from the ditch bottom of the sponge type ditch 10 and are arranged higher than the top of the sponge type ditch 10, and the first water retaining wall 210 and the second water retaining wall 220 form an overflow type drainage well 230 with an open top between them; the first water retaining wall 210 and the second water retaining wall 220 are both provided with overflow holes 240 communicating with the sponge type ditch 10 at positions close to the top of the sponge type ditch 10, the ditch bottom of the sponge type ditch 10 is provided with a first drainage slope consistent with the driving direction of the motor vehicle lane, the drain pipe 250 is laid at the bottom of the overflow type drainage well 230, the overflow type drainage well 230 is provided with a drain hole (not shown in the figure) in the side wall, and the drain pipe 250 communicates with an external rainwater pipeline (not shown in the figure) through the drain hole.

[0039] In detail, different from the sponge type side ditch 10 drainage directly through the drain pipe 250 into the external rainwater pipeline, in the present application, when the water flow is large, the water retaining wall assembly can block the water flow from flowing directly into the overflow drainage well 230, which can greatly relieve the pressure of drainage. Among them, the water retaining wall assembly includes a first water retaining wall 210 and a second water retaining wall 220 which are arranged at intervals along the extension direction of the sponge type side ditch 10, the first water retaining wall 210 and the second water retaining wall 220 both extend upward from the bottom of the sponge type side ditch 10 and are arranged higher than the top of the sponge type side ditch 10, the first water retaining wall 210 and the second water retaining wall 220 form an overflow drainage well 230 with an open top between them, and the first water retaining wall 210 and the second water retaining wall 220 are both provided with overflow holes 240 communicating with the sponge type side ditch 10 near the top of the side ditch.

[0040] It can be understood that the first water retaining wall 210 and the second water retaining wall 220 are arranged higher than the top of the side ditch to facilitate the installation of the grate assembly and the cover plate assembly described later. When the water flow is large, the rainwater on the road surface is first accumulated in the sponge type side ditch, and the excessive rainwater enters the overflow drainage well 230 through the overflow hole 240, which can greatly relieve the situation of rainwater accumulation on the road surface and relieve the pressure of drainage. By setting the overflow hole 240, rainwater exceeding the planned annual runoff total control rate is discharged from the sponge type side ditch 10. Those skilled in the art should note that the height of the position of the overflow hole 240 can be calculated and set according to the local annual runoff total control rate. The first water retaining wall 210 and the second water retaining wall 220 can be one or more of various structures such as reinforced concrete, wooden board, iron plate, etc. In a more preferred embodiment, a reinforced concrete structure is used, which has the advantages of low construction cost, simple construction and on-site pouring, etc. It is a common construction structure in road construction.

[0041] In addition, the bottom of the sponge type side ditch 10 is provided with a first drainage slope consistent with the driving direction of the motorway, the first drainage slope is the road longitudinal slope, and the slope is generally not less than 0.3%, which is used to make the water in the current unit flow into the overflow hole drainage well in the corresponding unit, which can be set by those skilled in the art according to actual needs. The drain pipe 250 is used to finally discharge rainwater to the external rainwater pipeline. It can be understood that when the water level of the sponge type side ditch 10 is higher than the overflow hole 240, the excess rainwater flows into the overflow drainage well 230 through the overflow hole 240, and then is discharged to the external rainwater pipeline through the drain pipe 250 laid in the overflow drainage well 230. In this way, the water in the entire sponge type side ditch 10 is discharged, meeting the control requirements of the annual runoff total amount of rainwater in the road catchment area.

[0042] As a preferred embodiment of the present application, each of the rainwater storage units further comprises a rainwater purification device 30, which comprises a sewage interception box 310 and a connecting infiltration pipe 320; wherein the sewage interception box 310 is fixed at the bottom of the sponge-type side ditch 10, is arranged close to the second water retaining wall 220, and is arranged at the incoming flow side of the second water retaining wall 220, the sewage interception box 310 is filled with sand and pebbles; a first communication hole (not shown in the figure) for the connecting infiltration pipe 320 to penetrate is arranged on the side wall of the sewage interception box 310 close to the second water retaining wall 220; a second communication hole (not shown in the figure) corresponding to the first communication hole is arranged on the second water retaining wall 220; the connecting infiltration pipe 320 comprises a water inlet end (not shown in the figure) and a water outlet end (not shown in the figure) arranged oppositely, the water inlet end extends into the sewage interception box 310 through the first communication hole, and the water outlet end extends into the overflow-type drainage well 230 through the second communication hole, so as to drain the purified water in the sewage interception box 310 into the overflow-type drainage well 230 through the connecting infiltration pipe 320.

[0043] Specifically, the sewage interception box 310 is used to purify the rainwater accumulated in the sponge-type side ditch 10, and it is worth noting that the sewage interception box 310 can be preferentially manufactured as a finished product and can be regularly replaced as the use time increases, the sewage interception box 310 can be made of high-strength plastic or stainless steel, both of which have the advantage of high water resistance, the sewage interception box 310 is filled with filter material, which can be sand and pebbles, quartz sand, ceramsite or other filter materials, considering the cost and the fact that the purified water is not directly used, it is more preferable to use sand and pebbles, which has the advantages of low cost and easy acquisition. Those skilled in the art can set it according to actual needs. It is worth noting that the first communication hole is arranged on the side wall of the sewage interception box 310 close to the second water retaining wall 220, for the water inlet end of the connecting infiltration pipe 320 to penetrate, the second communication hole is arranged on the second water retaining wall 220 corresponding to the first communication hole, for the water outlet end of the connecting infiltration pipe 320 to penetrate, so that the sewage interception box 310 is communicated with the overflow-type drainage well 230 through the connecting infiltration pipe 320, and the purified water in the sewage interception box 310 is drained into the overflow-type drainage well 230 through the connecting infiltration pipe 320.

[0044] As a preferred embodiment of the present application, the rainwater purification device 30 further comprises a silt chamber 330 recessed downward from the bottom of the sponge-type gutter 10, and the silt chamber 330 is arranged between the second water retaining wall 220 and the sewage interception box 310. It can be understood that the silt chamber 330 is used for silt and sand removal of the rainwater retained in the sponge-type gutter 10, and the depth of the recessed silt chamber 330 from the bottom of the sponge-type gutter 10 can be set according to actual needs. In a specific embodiment, the depth can be set to 0.3 m, or other recessed depths, and the specific value of the recessed depth can be set by the person skilled in the art together with the calculation of the sponge-type gutter 10.

[0045] Further, the bottom of the sponge-type gutter 10 is recessed downward with a mounting groove 311 matched with the sewage interception box 310, the sewage interception box 310 is embedded in the mounting groove 311, and the depth of the mounting groove 311 is less than the depth of the silt chamber 330. It can be understood that the water flow in the sponge-type gutter 10 has a certain impact force on the sewage interception box 310, so the sponge-type gutter 10 is recessed downward from the bottom with a mounting groove 311 matched with the sewage interception box 310 for stable placement of the sewage interception box 310. Considering that it does not affect the normal use of the function of the sewage interception box 310, the depth of the mounting groove 311 should not be too large, preferably, the depth of the mounting groove 311 is 0.05 m, and it can also be other depths, which can be set by the person skilled in the art according to actual needs.

[0046] Further, the connecting infiltration pipe 320 comprises an inner infiltration pipe 321 and an outer infiltration pipe 322, the inner infiltration pipe 321 is inserted into the sewage interception box 310 through the first communication hole, the outer infiltration pipe 322 is communicated with the overflow drainage well 230 through the second communication hole, and the inner infiltration pipe 321 and the outer infiltration pipe 322 are connected through a union joint (not shown in the figure). It is worth noting that the inner infiltration pipe 321 and the outer infiltration pipe 322 can be made of PE, plastic hose, stainless steel pipe and the like. Considering the cost and installation difficulty, preferably, the inner infiltration pipe 321 is made of PE, and the outer infiltration pipe 322 is made of plastic hose, which has the advantages of low cost, long service life, safety, hygiene and convenient construction. Since the sewage interception box 310 is a finished product, in order to facilitate the overall replacement of the sewage interception box 310, the inner infiltration pipe 321 and the outer infiltration pipe 322 are connected through a union joint clamp. When the sewage interception box 310 is replaced, the inner infiltration pipe 321 can be disassembled through the union joint to facilitate the replacement of the sewage interception box 310 together.

[0047] Further, the inner permeation pipe 321 comprises a first end 3211 and a second end 3212 oppositely arranged, the first end 3211 extends into the sewage interception box 310 through the first communication hole, and the first end 3211 is in a bent shape, so that the water inlet direction of the inner permeation pipe 321 is perpendicular to the water flow direction of the sponge-type side ditch 10, the first end 3211 is provided with a pipe cap (not shown in the figure), the pipe cap is provided with a pipe hole (not shown in the figure) for water inlet, and the second end 3212 is in communication with the outer permeation pipe 322. It can be understood that the first end 3211 is in a bent shape, so that the water inlet direction of the inner permeation pipe 321 is perpendicular to the water flow direction of the sponge-type side ditch 10, so that the surface filter material of the sewage interception box 310 can be washed during the rainwater convergence of the sponge-type side ditch 10, so as to prolong the replacement period of the sewage interception box 310 and improve the sewage interception capacity of the side ditch structure. It is worth noting that the first end 3211 is provided with a pipe cap, and the pipe cap is provided with a pipe hole for water inlet, so that the purified sludge residues in the sewage interception box 310 can be prevented from being discharged into the overflow drainage well 230 through the connecting permeation pipe 320.

[0048] As a preferred embodiment of the present application, the rainwater purification device 30 further comprises a filter screen 340, which is installed on the side of the overflow hole 240 away from the overflow drainage well 230. It can be understood that the filter screen 340 is used to intercept floating objects on the upper layer of rainwater in the sponge-type side ditch 10, and the purpose of installing the filter screen 340 on the side of the overflow hole 240 away from the overflow drainage well 230 is to prevent floating objects from entering the overflow hole 240 and blocking the overflow hole 240 when the floating objects accumulate too much.

[0049] As a preferred embodiment of the present application, the rainwater storage unit comprises a drainage device 40 and a beam assembly (not shown in the figure) arranged above the sponge-type gutter 10; wherein the beam assembly comprises a first beam 110 and a second beam 120 arranged in the extension direction of the sponge-type gutter 10, the first beam 110 and the second beam 120 are arranged along the transverse direction of the sponge-type gutter 10, and the first beam 110 is arranged close to the second water retaining wall 220; the drainage device 40 comprises a first rainwater grate 410, a second rainwater grate 420 and a third rainwater grate 430 connected in sequence along the extension direction of the sponge-type gutter 10; the first rainwater grate is arranged on the top of the first water retaining wall 210 and the second water retaining wall 220, and covers the overflow drainage well 230; one end of the second rainwater grate is arranged on the second water retaining wall 220, and the other end is arranged on the first beam 110, the second rainwater grate is arranged opposite to the sediment chamber 330, and covers the sediment chamber 330; one end of the third rainwater grate is arranged on the first beam 110, and the other end is arranged on the second beam 120, the third rainwater grate is arranged opposite to the sewage interception box 310, and covers the sewage interception box 310.

[0050] It is worth noting that the beam assembly can be arranged higher or lower than the water retaining wall assembly, in a more preferred embodiment, the height of the beam assembly is consistent with the height of the water retaining wall assembly above the top of the sponge-type gutter 10, so that the first rainwater grate 410, the second rainwater grate 420 and the third rainwater grate 430 can be flatly connected and arranged on the water retaining wall assembly and the beam assembly along the extension direction of the sponge-type gutter 10. It can be understood that the rainwater grate is a common means for draining rainwater into the gutter in the prior art, the surface of the rainwater grate is provided with a plurality of strip-shaped through holes for directly flowing rainwater into the gutter, the first rainwater grate 410, the second rainwater grate 420 and the third rainwater grate 430 can be made of cast iron, reinforced concrete and the like, considering the convenience of disassembly and cost, preferably, the first rainwater grate 410, the second rainwater grate 420 and the third rainwater grate 430 are made of cast iron.

[0051] Further, the first rain grate 410, the second rain grate 420 and the third rain grate 430 are all detachable, the first rain grate 410 is arranged above the overflow drainage well 230, when the first rain grate 410 is opened, the residual sludge and sand in the overflow drainage well 230 can be dredged, and the drainage pipe 250 can be dredged; the second rain grate is arranged above the sludge chamber 330, when the second rain grate 420 is opened, the residual sludge and sand in the sludge chamber 330 can be dredged; the third rain grate is arranged above the intercepting box 310, when the third rain grate 430 is opened, the intercepting box 310 can be taken out, the filter material in the intercepting box 310 can be washed, or the whole intercepting box 310 can be directly replaced.

[0052] As a preferred embodiment of the present application, the drainage device 40 further comprises a road cover plate assembly (not shown in the figure) and a hollow cover plate assembly (not shown in the figure); wherein the road cover plate assembly comprises at least one first road cover plate 440 and a second road cover plate 450 arranged along the extension direction of the sponge-type gutter 10; the first road cover plate 440 is spliced with the first rain grate along the extension direction of the sponge-type gutter 10, one end of the first road cover plate 440 is arranged on the top of the first water retaining wall 210, and the other end is arranged on the top of the sponge-type gutter 10; the second road cover plate 450 is spliced with the third rain grate 430 along the extension direction of the sponge-type gutter 10, one end of the second road cover plate 450 is arranged on the top of the second cross beam 120, and the other end is arranged on the top of the sponge-type gutter 10; the hollow cover plate assembly comprises at least one first hollow cover plate 460 and a second hollow cover plate (not shown in the figure) arranged along the extension direction of the sponge-type gutter 10; the first hollow cover plate 460 is spliced with the first road cover plate 440 along the extension direction of the sponge-type gutter 10, and the second hollow cover plate is spliced with the second road cover plate 450 along the extension direction of the sponge-type gutter 10, the first road cover plate 440 is provided with a second drainage slope towards the first hollow cover plate 460, and the second road cover plate 450 is provided with a third drainage slope consistent with the direction of the second drainage slope, so that water flows into the sponge-type gutter 10 through the first hollow cover plate 460 and the second hollow cover plate.

[0053] It is worth noting that, similar to the rainwater grate described above, the perforated cover plate assembly is also a common means for draining rainwater into the gutter in the prior art, and the surface of the perforated cover plate assembly is provided with a plurality of circular through holes for rainwater to flow into the sponge-type gutter 10; the road cover plate assembly also serves as a road flat stone, providing comfort and safety for vehicle driving. The road cover plate assembly and the perforated cover plate assembly can adopt structures such as reinforced concrete, wood board, iron plate, etc. Considering the cost and processing and manufacturing aspects, preferably, the road cover plate assembly and the perforated cover plate assembly both adopt a reinforced concrete structure, which has the advantages of low construction cost and prefabricated assembly.

[0054] Further, the first road cover plate 440 and the second road cover plate 450 can both be multiple pieces, and the first road cover plates 440 are spliced along the extension direction of the sponge-type gutter 10, and the second road cover plates 450 are spliced along the extension direction of the sponge-type gutter 10.

[0055] In addition, the first road cover plate 440 is provided with a second drainage slope towards the first perforated cover plate 460, and the second road cover plate 450 is provided with a third drainage slope consistent with the direction of the second drainage slope, so that water flows through the first perforated cover plate 460 and the second perforated cover plate and flows into the sponge-type gutter 10. It is worth noting that the slope of the second drainage slope and the third drainage slope can be inconsistent, and the slope of the second drainage slope and the third drainage slope is generally not more than 0.3%. The purpose of such setting is to provide guidance for the flow direction of rainwater, so in a more preferred embodiment, the slope is set to be not more than 0.3%, and the specific value can be set by the person skilled in the art as appropriate.

[0056] Preferably, a plurality of curb stones 130 are arranged between the sidewalk and the drainage device 40, and the plurality of curb stones 130 are arranged in sequence along the extension direction of the sponge-type gutter 10, and the top of the curb stone 130 is flush with the road surface of the sidewalk; the top of the curb stone 130 forms a drainage slope surface (not marked in the figure) from the sidewalk to the drainage device 40, so that water on the sidewalk flows to the drainage device 40. It can be understood that the curb stone 130 is used to isolate the driveway from the sidewalk, and the top of the curb stone 130 forms a drainage slope surface from the sidewalk to the drainage device 40, and rainwater on the sidewalk flows into the drainage device 40 through the drainage slope surface of the curb stone 130, thereby alleviating the situation of water on the sidewalk.

[0057] The above merely describes the preferred embodiments of the present application, and is not intended to limit the patent scope of the present application, and any equivalent structure or equivalent process conversion, or direct or indirect application in other related technical fields, which are made by using the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. A sponge-type gutter structure for urban roads, characterized in that: The invention comprises a sponge-type side ditch and a plurality of rainwater storage units arranged at intervals along the extension direction of the sponge-type side ditch, wherein the rainwater storage unit divides the sponge-type side ditch into a plurality of side ditch units, and each of the rainwater storage units comprises a water storage device; wherein the sponge-type side ditch is provided at the transition connection between the sidewalk and the motor vehicle lane, and extends along the extension direction of the motor vehicle lane; wherein, The water storage device includes a water retaining wall assembly and a drainage pipe; wherein the water retaining wall assembly includes a first water retaining wall and a second water retaining wall arranged at intervals along the extension direction of the sponge-type side ditch, the first water retaining wall and the second water retaining wall both extending upward from the bottom of the sponge-type side ditch and being arranged higher than the top of the sponge-type side ditch, and an overflow drainage well with a top opening formed between the first water retaining wall and the second water retaining wall; the first water retaining wall and the second water retaining wall both have overflow holes connected to the sponge-type side ditch at positions near the top of the sponge-type side ditch, and the bottom of the sponge-type side ditch has a first drainage slope consistent with the driving direction of the motor vehicle lane; The drainage pipe is laid at the bottom of the overflow drainage well, a drainage hole is opened on the side wall of the overflow drainage well, and the drainage pipe is connected to the external rainwater pipeline by passing through the drainage hole; Each of the rainwater storage units further includes a rainwater purification device, which includes a sewage interception box and a connecting seepage pipe; wherein the sewage interception box is fixed to the bottom of the sponge-type ditch, the sewage interception box is arranged close to the second retaining wall and is arranged on the inflow side of the second retaining wall, and the sewage interception box is filled with filter material; a first connecting hole for the connecting seepage pipe to pass through is provided on the side wall of the sewage interception box close to the second retaining wall; a second connecting hole corresponding to the first connecting hole is provided on the second retaining wall; the connecting seepage pipe includes an inlet end and a discharge end arranged opposite to each other, the inlet end extends into the sewage interception box through the first connecting hole, and the discharge end extends into the overflow drainage well through the second connecting hole, so that the purified water in the sewage interception box is discharged into the overflow drainage well through the connecting seepage pipe; The connecting seepage pipe includes an internal seepage pipe and an external seepage pipe, the internal seepage pipe is inserted into the sewage interception box by passing through the first communicating hole, the external seepage pipe is connected to the overflow drainage well by passing through the second communicating hole, and the internal seepage pipe and the external seepage pipe are connected by a flexible joint; The infiltration tube includes a first end and a second end that are arranged opposite to each other. The first end extends into the sewage interception box by passing through the first connecting hole, and the first end is bent so that the water inlet direction of the infiltration tube is perpendicular to the water flow direction of the sponge-type ditch. The first end is provided with a pipe cap, and the pipe cap is provided with a plurality of pipe holes connected to the infiltration tube. The second end is connected to the exfiltration tube.

2. The sponge-type gutter structure for urban roads according to claim 1, characterized in that: The rainwater purification device further comprises a mud chamber sunken downward from the bottom of the sponge-shaped ditch, and the mud chamber is arranged between the second retaining wall and the sewage interception box.

3. The sponge-type gutter structure for urban roads according to claim 2, characterized in that: The bottom of the sponge-type side ditch is concave downward to form a mounting groove that matches the sewage interception box. The sewage interception box is embedded in the mounting groove, and the depth of the mounting groove is less than the depth of the sludge chamber.

4. The sponge-type gutter structure for urban roads according to claim 1, characterized in that: The rainwater purification device further comprises a filter screen, which is installed on a side of the overflow hole away from the overflow drainage well.

5. The sponge-type ditch structure for urban roads according to claim 2, characterized in that: The rainwater storage unit includes a drainage device and a beam assembly arranged above the sponge-type ditch; wherein, The crossbeam assembly includes a first crossbeam and a second crossbeam spaced apart along the extension direction of the sponge-shaped ditch, the first crossbeam and the second crossbeam are both arranged to extend in the transverse direction of the sponge-shaped ditch, and the first crossbeam is arranged close to the second retaining wall; The drainage device includes a first rainwater grate, a second rainwater grate and a third rainwater grate which are spliced ​​in sequence along the extension direction of the sponge-type ditch; the first rainwater grate is mounted on the top of the first water retaining wall and the second water retaining wall, and is covered above the overflow drainage well; one end of the second rainwater grate is mounted on the second water retaining wall, and the other end is mounted on the first crossbeam, the second rainwater grate is arranged opposite to the sludge chamber, and is covered above the sludge chamber; one end of the third rainwater grate is mounted on the first crossbeam, and the other end is mounted on the second crossbeam, the third rainwater grate is arranged opposite to the sewage interception box, and is covered above the sewage interception box.

6. The sponge-type ditch structure for urban roads according to claim 5, characterized in that: The drainage device also includes a road cover assembly and a hollow cover assembly; wherein, The road cover assembly includes at least one first road cover and a second road cover arranged along the extension direction of the sponge-type side ditch; the first road cover and the first rain grate are spliced ​​along the extension direction of the sponge-type side ditch, one end of the first road cover is mounted on the top of the first retaining wall, and the other end is mounted on the top of the sponge-type side ditch; the second road cover and the third rain grate are spliced ​​along the extension direction of the sponge-type side ditch, one end of the second road cover is mounted on the top of the second crossbeam, and the other end is mounted on the top of the sponge-type side ditch; The hollow cover plate assembly includes at least a first hollow cover plate and a second hollow cover plate arranged along the extension direction of the sponge-type side ditch; the first hollow cover plate and the first road cover plate are spliced ​​along the extension direction of the sponge-type side ditch, and the second hollow cover plate and the second road cover plate are spliced ​​along the extension direction of the sponge-type side ditch. The first road cover plate is provided with a second drainage slope toward the first hollow cover plate, and the second road cover plate is provided with a third drainage slope consistent with the direction of the second drainage slope, so that water flows through the first hollow cover plate and the second hollow cover plate into the sponge-type side ditch.

7. The sponge-type gutter structure for urban roads according to claim 5, characterized in that: It also includes a plurality of curbstones disposed between the sidewalk and the drainage device, wherein the plurality of curbstones are sequentially arranged along the extension direction of the sponge-shaped gutter, and the tops of the curbstones are flush with the pavement of the sidewalk; A drainage slope is formed on the top of the edge stone from the sidewalk toward the drainage device, so that water on the sidewalk flows down to the drainage device.

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