CN209975692U

CN209975692U - Urban road rainwater regulation and storage system

Info

Publication number: CN209975692U
Application number: CN201920428742.2U
Authority: CN
Inventors: 邵韦弦; 罗兆龙; 张晓雅
Original assignee: Guangzhou Municipal Engineering Design & Research Institute Co Ltd
Current assignee: Guangzhou Municipal Engineering Design & Research Institute Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2020-01-21
Anticipated expiration: 2029-03-29

Abstract

The utility model discloses an urban road rainwater regulation system, including grass planting ditch and overflow well, the grass planting ditch sets up in the pavement outside, the overflow well sets up between pavement and motor vehicle lane, the overflow well includes first box room and second box room, first box room top sets up the entry that supplies the rainwater inflow, the bottom of first box room is provided with the initial stage rainwater discharge pipe, the upper portion of first box room is provided with the first rainwater connecting pipe with the grass planting ditch intercommunication, the bottom of grass planting ditch is provided with the drainage well, be connected with second rainwater connecting pipe between drainage well and the second box room, the bottom of second box room is connected with the rainwater discharge pipe, the diameter of initial stage rainwater discharge pipe is less than the diameter of first rainwater connecting pipe, initial stage rainwater discharge pipe and second box room intercommunication. The system can discharge initial rainwater to the second box chamber through the initial rainwater discharge pipe and discharge the initial rainwater through the rainwater discharge pipe, thereby effectively preventing the initial rainwater from flowing into the grass planting ditch and avoiding the damage of chemical substances contained in the initial rainwater to the grass planting ditch.

Description

Urban road rainwater regulation and storage system

Technical Field

The utility model relates to a municipal works technical field, in particular to urban road rainwater regulation system.

Background

The sponge city is a city which has good elasticity in the aspects of adapting to environmental changes, coping with natural disasters and the like a sponge, absorbs water, stores water, seeps water and purifies water when raining, and releases the stored water when needed. The urban ecological system function is promoted and the urban flood disaster is reduced.

In the construction of sponge cities of general roads, grass planting ditches or recessed green belts are arranged on the outer sides of sidewalks, drainage wells are arranged in the grass planting ditches (the recessed green belts), collected rainwater firstly enters the grass planting ditches (the recessed green belts), and rainwater exceeding the seepage storage capacity of the grass planting ditches (the recessed green belts) is drained into a municipal rainwater pipe network system through the drainage wells.

However, the rainwater storage system has a disadvantage that the collected initial rainwater is also discharged into the grass planting furrows (concave greenbelts), and the grass planting furrows (concave greenbelts) are easily damaged by chemical substances in the initial rainwater for a long time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an urban road rainwater regulation system to solve the problem that proposes in the above-mentioned background art.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides an urban road rainwater regulation system, includes grass planting ditch and overflow well, the grass planting ditch sets up in the pavement outside, the overflow well sets up between pavement and motor vehicle lane, the overflow well includes first case room and second case room, first case roof portion sets up the entry that supplies the rainwater inflow, the bottom of first case room is provided with initial stage rainwater discharge pipe, the upper portion of first case room is provided with the first rainwater connecting pipe with the grass planting ditch intercommunication, the bottom of grass planting ditch is provided with the drainage well, be connected with second rainwater connecting pipe between drainage well and the second case room, the bottom of second case room is connected with the rainwater discharge pipe, the diameter of initial stage rainwater discharge pipe is less than the diameter of first rainwater connecting pipe, initial stage rainwater discharge pipe and second case room intercommunication.

As an improvement of the above scheme, the number of the first tank chambers is at least two, all the first tank chambers are mutually communicated at the bottom, a communicated overflow hole is arranged between the first tank chamber and the second tank chamber, and the height of the overflow hole is higher than that of the first rainwater connecting pipe arranged on the first tank chamber.

As an improvement of the above scheme, a cobblestone energy dissipation ridge is arranged at the discharge port of the first rainwater connecting pipe.

As an improvement of the scheme, the overflow wells are arranged between the sidewalks and the motor vehicle lanes every 30 m.

As an improvement of the above scheme, the diameter of the first rainwater connecting pipe is smaller than that of the second rainwater connecting pipe.

Has the advantages that: through being provided with initial stage rainwater discharge pipe in the bottom of first boxed room, when initial stage rainwater flowed in to first boxed room through the entry, initial stage rainwater discharged to second boxed room through initial stage rainwater discharge pipe, further discharged through the main discharge pipe, effectively avoided initial stage rainwater to flow in to the grass planting ditch, stopped the injury of chemical substance pair grass planting ditch that contains in initial stage rainwater.

Drawings

The invention is further described with reference to the following figures and examples:

FIG. 1 is a schematic longitudinal sectional view of an urban road rainwater storage and regulation system;

FIG. 2 is a partial top view of an urban road rainwater storage system.

Detailed Description

Referring to fig. 1 and 2, the embodiment of the utility model provides an urban road rainwater regulation system, this system include grass planting ditch and overflow well 1, and wherein the grass planting ditch sets up in the pavement outside, and overflow well 1 sets up between pavement and motorway, sets up interval 30m between overflow well 1 and the overflow well 1. The overflow well 1 comprises a first box chamber 11 and a second box chamber 12, an inlet for rainwater to flow into is formed in the top of the first box chamber 11, a ductile cast iron well cover can be arranged at the top of the first box chamber 11, and an inlet for rainwater to flow through is formed in the well cover. An initial rainwater discharge pipe 4 is arranged at the bottom of the first box chamber 11, and the initial rainwater discharge pipe 4 can be a steel pipe of DN 50; the upper part of the first box chamber 11 is provided with first rainwater connecting pipes 2 communicated with the grass planting ditches, in the embodiment, the number of the first rainwater connecting pipes 2 connected between the first box chamber 11 and the grass planting ditches is two, and the first rainwater connecting pipes 2 can be selected as steel pipes of DN 150; the bottom in grass planting ditch is provided with the drainage well, is connected with second rainwater connecting pipe 3 between drainage well and second case room 12, and the bottom of second case room 12 is connected with main drainage pipe 6. The diameter of the initial rainwater discharge pipe 4 is smaller than that of the first rainwater connection pipe 2, and the initial rainwater discharge pipe 4 communicates with the second tank chamber 12.

When the initial stage rainwater flows into first chamber 11 through the entry, because the height that highly is less than first rainwater connecting pipe 2 of initial stage rainwater discharge pipe 4, the initial stage rainwater is at first discharged to second chamber 12 through initial stage rainwater discharge pipe 4, further discharges through main discharge pipe 6, has effectively avoided the initial stage rainwater to flow into the grass planting ditch, has stopped the injury of the chemical substance pair grass planting ditch that contains in the initial stage rainwater.

As the diameter of the initial rainwater discharge pipe 4 is smaller, when the rainwater is gradually increased, the liquid level of the rainwater is gradually increased until the rainwater can flow to the grass planting ditch through the first rainwater connection pipe 2; the continuous inflow of rainwater is to the grass planting ditch and is oozed, holds when exceeding the grass planting ditch and oozes the ability after, and the rethread drainage well is arranged to the second incasement, and rethread discharge header 6 is discharged.

In order to avoid violent impact of rainwater on the grass planting ditch, a cobblestone energy dissipation ridge is arranged at the discharge port of the first rainwater connecting pipe 2.

Preferably, the number of the first tank chambers 11 is at least two, in this embodiment, the number of the first tank chambers 11 is two, the two first tank chambers 11 are communicated with each other at the bottom to ensure that all the first tank chambers 11 maintain the same liquid level, the second tank chamber 12 is located at the right side of the first tank chamber 11, the communicated overflow holes 5 are arranged between the first tank chamber 11 and the second tank chamber 12, and the height of the overflow holes 5 is higher than the height of the first rainwater connecting pipe 2 arranged on the first tank chamber 11. When the first rain water connecting pipe 2 is blocked due to a certain accident or the flow rate of the rain water is large, the rain water can directly flow into the second tank chamber 12 through the overflow hole 5 and then be discharged through the discharge main pipe 6.

Preferably, the diameter of the first rain water connecting pipe 2 is smaller than that of the second rain water connecting pipe 3. Because the grass planting ditch is arranged at the rear end of the first rainwater connecting pipe 2, on one hand, the diameter of the first rainwater connecting pipe 2 is smaller, and the impact of rainwater on the grass planting ditch can be reduced; on the other hand, since the number of the first rainwater connection pipes 2 is plural, the number of the second rainwater connection pipes 3 is one. Rainwater flows through a plurality of first rainwater connecting pipes 2 first and gathers, and then is discharged after second rainwater connecting pipe 3, and from the angle design that rationally satisfies rainwater flow, the diameter of first rainwater connecting pipe 2 needs to be less than the diameter of second rainwater connecting pipe 3.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims

1. The utility model provides an urban road rainwater regulation system which characterized in that: including grass planting ditch and overflow well, the grass planting ditch sets up in the pavement outside, the overflow well sets up between pavement and motor vehicle lane, the overflow well includes first case room and second case room, first case roof portion sets up the entry that supplies the rainwater to flow in, the bottom of first case room is provided with initial rainwater discharge pipe, the upper portion of first case room is provided with the first rainwater connecting pipe with the grass planting ditch intercommunication, the bottom of grass planting ditch is provided with the drainage well, be connected with second rainwater connecting pipe between drainage well and the second case room, the bottom of second case room is connected with the main drainage pipe, the diameter of initial rainwater discharge pipe is less than the diameter of first rainwater connecting pipe, initial rainwater discharge pipe and second case room intercommunication.

2. The urban road rainwater regulation system of claim 1 wherein: the number of the first box chambers is at least two, all the first box chambers are mutually communicated at the bottoms, communicated overflow holes are formed between the first box chambers and the second box chambers, and the height of each overflow hole is higher than that of the first rainwater connecting pipe arranged on the first box chamber.

3. The urban road rainwater regulation system according to claim 2, wherein: and a cobblestone energy dissipation ridge is arranged at the discharge port of the first rainwater connecting pipe.

4. The urban road rainwater regulation system of claim 1 wherein: the overflow wells are arranged every 30m between the sidewalk and the motor vehicle lane.

5. The urban road rainwater regulation system of claim 1 wherein: the diameter of the first rainwater connecting pipe is smaller than that of the second rainwater connecting pipe.