CN216108852U - Rainwater garden based on sponge ecosystem water purification - Google Patents

Abstract

The utility model discloses a rainwater garden based on sponge ecosystem water purification.A drainage pipe is arranged in a sand layer, and a water seepage hole is arranged on the drainage pipe; the problem that when the rainfall is too large, the plant roots are in a sand layer for a long time, so that the plant roots are easy to necrose or the plant growth is influenced can be solved to a certain extent; the drainage pipe is set into a wave shape or a bent shape, and the shape of the drainage pipe is utilized to guide the flowing direction of rainwater, so that the rainwater can enter the drainage pipe more quickly and easily from the water seepage holes positioned at the downward sunken positions of the wave troughs or the bent sections on the top surface of the drainage pipe.

Description

Rainwater garden based on sponge ecosystem water purification

Technical Field

The utility model relates to the field of environmental engineering, in particular to a rainwater garden based on sponge ecosystem water purification.

Background

The rainwater garden is a shallow concave green land which is naturally formed or artificially excavated, is used for gathering and absorbing rainwater from a roof or the ground, purifies the rainwater through the comprehensive action of plants and sand, gradually permeates the soil, contains underground water, or supplies urban water such as landscape water, toilet water and the like, and is an ecologically sustainable rainwater flood control and rainwater utilization facility.

Plants are planted in a soil layer of an existing rainwater garden, the roots of common plants can extend into a sand layer, rainwater easily permeates into the sand layer from the soil layer when the rainwater amount is large, and the roots of the plants are possibly necrotized when the plants are soaked in rainwater for a long time or the temperature is relatively low and the rainwater volatilizes slowly.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a rainwater garden based on sponge ecosystem water purification, which can solve the problem that when the rainwater quantity is too large, the plant roots are in a sand layer for a long time, so that the plant roots are easy to necrose or the plant growth is influenced.

The utility model is realized by the following technical scheme: the rainwater garden based on the sponge ecosystem water purification comprises a soil layer, a sand layer and a water collection pit arranged in the sand layer, wherein the water collection pit is arranged in the sand layer, the top of the water collection pit is higher than the top surface of the soil layer, water inlet holes are formed in the top and the side wall of the water collection pit, a drain pipe is connected to the water collection pit and is located in the sand layer, and water seepage holes are formed in the top surface and the bottom surface of the drain pipe. The rainwater garden has the advantages that a plurality of plants are usually planted in the soil layer of the rainwater garden, the roots of the plants can usually extend into the sand layer, when the rainfall is too large, rainwater can permeate into the sand layer from the soil, the rainwater absorption effect of the plants is limited, and if the roots of the plants are in the soaking process for a long time, the root of the plants are easy to necrotize, and finally the plants die. Therefore, the applicant provides a rainwater garden based on sponge ecosystem water purification, aiming at the problems found out above, and being capable of solving the problem that the excessive moisture in a sand layer can cause the necrosis of plant roots under the condition of excessive rainfall. The specific implementation mode is as follows:

the water collecting pit is arranged, the bottom of the water collecting pit is positioned in the sand layer, the top of the water collecting pit is higher than the top surface of the soil layer, and a water inlet hole is formed in the top or the side surface of the water collecting pit, so that rainwater can enter the water collecting pit from the water inlet hole when the rainwater amount is too large, and the rainwater can be collected in the water collecting pit; partial rainwater can be collected from the sump pit, and partial rainwater can be followed the soil horizon and oozed to the sand bed in addition, the rainwater flows to the infiltration hole department of drain pipe top surface in the sand bed, and enter into in the drain pipe from the infiltration hole, consequently lie in the sand bed and can't be discharged in the drain pipe by the moisture content that the root of plant absorbed, can avoid the problem of root of plant necrosis, consequently, this scheme can be solved when the rainwater volume is too big, root of plant is in the sand bed for a long time, lead to root of plant necrosis easily or influence the problem of vegetation. In addition, the applicant finds that the water collecting pit can not only avoid the problem that the plants are drowned due to excessive rainwater, but also supply water to the plants under the dry condition after rainwater is collected and filtered; the specific implementation mode is as follows: the drain pipe with the hookup location of sump is located the ascending middle part of direction of height of sump, therefore when the rainwater water level in the sump is higher than the entry of drain pipe, hydroenergy in the sump can get into the drain pipe, and because the infiltration pit on the drain pipe sets up respectively in the top surface and the bottom surface of drain pipe, then hydroenergy can permeate to the sand bed in from the drain pipe easily, only need under the condition that the plant need irrigate, impress the rainwater in the sump into the drain pipe, can realize the moist effect to the sand bed promptly, in order to avoid the plant to appear dead problem because of excessive drying.

Specifically, the drain pipe is wavy, and the water seepage holes are formed in the top surface and the bottom surface of the trough of the drain pipe; or the drain pipe is bent, and the water seepage holes are formed in the top surface and the bottom surface of the downward bent position of the drain pipe. Firstly, when the drain pipe is bent, the drain pipe can guide the flowing action of rainwater due to the bent shape when redundant rainwater in the sand layer is adhered to the upper surface of the drain pipe, so that the rainwater can flow to the wave trough of the drain pipe or the downward bent position more quickly and enter the drain pipe from the water seepage hole, and compared with the straight drain pipe, the bent pipe can enable redundant moisture to enter the drain pipe more quickly; the inner diameter of the water seepage hole on the top surface of the drain pipe is larger than that of the water seepage hole on the bottom surface; and a blocking net is arranged at the inlet of the drain pipe at the communication position of the drain pipe and the water collecting pit. The blocking net can prevent larger particle impurities from entering the drain pipe, so that the problem of blockage of the drain pipe is avoided; a baffle is arranged in the drain pipe, and the baffle is arranged on the rear side of the water seepage hole in the bottom surface of the drain pipe. The baffle plays certain hindrance effect to the flow of rainwater in the drain pipe and can slow down the flow speed of rainwater, can guarantee that the water in the sump pit is pushed out to the drain pipe after, and the rainwater that the drain pipe bottom infiltration hole department oozed is more, can strengthen the moist effect to the sand bed.

Preferably, a filter bag is arranged in the water collecting pit, a rod piece is connected to the filter bag, the top of the rod piece extends out of the water collecting pit, the filter bag can be lifted in the water collecting pit through the lifting rod piece, and the side face of the filter bag covers the inlet of the drain pipe. The filter bag comprises a rubber bag and filter particles, and the filter particles are positioned in the rubber bag. The filter bag is adopted to fill the filter material, so as to prevent the filter material from silting and being difficult to treat after long-term use; adopt in this scheme to filter the package, after filtering the package and using a period, the accessible reciprocates and filters the package, makes the irregular motion of filter particle in filtering the package, recycles the rainwater in the sump and plays certain clean effect to filtering the package, can strengthen the life who filters the package to can also take out the filtration package and change when filtering the unable use of package, the apron at sump top is detachable construction.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

1. according to the utility model, the drain pipe is arranged in the sand layer, and the water seepage holes are arranged on the drain pipe, so that when the rainfall is too large or the rainwater in the sand layer is too much, the rainwater can enter the drain pipe through the water seepage holes, flow along the drain pipe and be discharged; can solve to a certain extent when the rainfall is too big, the plant root is in the sand bed for a long time, leads to the necrotic problem of plant root or influences vegetation easily.

2. The drainage pipe is arranged in a wave shape or a bent shape, so that rainwater can quickly and easily enter the drainage pipe from the seepage holes positioned at the valley or the downward sunken part of the bent section on the top surface of the drainage pipe by utilizing the guiding effect of the shape of the drainage pipe on the flowing direction of the rainwater.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the principles of the utility model. In the drawings:

FIG. 1 is a schematic structural diagram of the present invention.

Reference numbers and corresponding part names in the drawings:

1-a gravel layer; 2-a water collecting pit; 3, a drain pipe; 4-a baffle plate; 5-water seepage holes; 6-blocking; 7-a sand layer; 8-filter bag; 9-a soil layer; 10-a guide plate; 11-water inlet holes; 12-a handle; 13-a rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.

Example 1:

as shown in fig. 1, a rainwater garden based on sponge ecosystem water purification is provided with a soil layer 9, a sand layer 7 and a gravel layer 1 from top to bottom; a plurality of plants are planted in the soil layer 9, the roots of the plants can extend into the sand layer 7, a water collecting pit 2 is arranged in the sand layer 7, the top of the water collecting pit 2 is higher than the top surface of the soil layer 9, an arc-shaped cover plate is arranged at the top of the water collecting pit 2, water inlet holes 11 are formed in the side surface areas of the arc-shaped cover plate and the soil layer 9, the diameter of each water inlet hole 11 is small, large-particle impurities can be prevented from entering the water collecting pit 2, and the arc-shaped cover plate is of a detachable structure; a filtering bag 8 is arranged in the sump 2, the filtering bag 8 comprises a rubber bag and filtering particles, the filtering particles are positioned in the rubber bag, the filtering particles can adopt light filtering ceramsite, and the rubber bag has high elasticity and can deform according to the state of the filtering particles; the inside at the top of sump 2 is provided with guide board 10, guide board 10 is the tilt state, the one end of guide board 10 and the inner wall necklace of sump 2, other end downwardly extending, guide board 10 can make the rainwater that enters into in sump 2 flow to the central point at the top of filtering bag 8 and put, can play the better filter effect to the rainwater.

The sand bed 7 is also provided with a drain pipe 3, the drain pipe 3 is wavy, the inlet of the drain pipe 3 is communicated with the sump 2, a blocking net 6 is arranged in the inlet of the drain pipe 3, and one end of the inlet of the drain pipe 3 is higher than one end of the outlet of the drain pipe 3; the top surface and the bottom surface of the trough position of the drain pipe 3 are both provided with water seepage holes 5, and the pore diameter of the water seepage hole 5 positioned on the top surface is larger than that of the water seepage hole 5 positioned on the bottom surface; the drain pipe 3 is internally provided with a baffle 4, the baffle 4 is positioned at the rear side of the water seepage hole 5 positioned at the bottom surface, the rear side means that rainwater can contact the baffle 4 only by flowing through the water seepage hole 5, namely the baffle 4 can play a certain role in blocking the flow of the rainwater, and ensures that part of the moisture can permeate into the sand bed 7; therefore, the scheme can collect or discharge rainwater under the condition of overlarge rainfall, can avoid the problem of plant root necrosis, can press out the rainwater collected in the water collecting pit 2 into the drain pipe 3 through the mode under the condition that the plants need to be irrigated, can partially infiltrate the rainwater in the drain pipe 3 into the sand layer 7, and plays a certain wetting role on the sand layer 7.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (6)

1. The utility model provides a rainwater garden based on sponge ecosystem quality of water purifies, includes soil horizon, sand bed, sets up the sump pit in sand bed which characterized in that:

the sump pit sets up in husky layer, and the top of sump pit is higher than the top surface on soil horizon, and the top and the lateral wall of sump pit are provided with the inlet opening, be connected with the drain pipe on the sump pit, the drain pipe is located in the husky layer, the top surface and the bottom surface of drain pipe all are provided with the infiltration hole.

2. The rainwater garden based on sponge ecosystem water purification of claim 1, characterized in that: the drain pipe is wavy, and the water seepage holes are formed in the top surface and the bottom surface of the trough of the drain pipe; or the drain pipe is bent, and the water seepage holes are formed in the top surface and the bottom surface of the downward bent position of the drain pipe.

3. The rainwater garden based on sponge ecosystem water purification of claim 1, characterized in that: and a blocking net is arranged at the inlet of the drain pipe at the communication position of the drain pipe and the water collecting pit.

4. The rainwater garden based on sponge ecosystem water purification of claim 2 or 3, characterized in that: a baffle is arranged in the drain pipe, and the baffle is arranged on the rear side of the water seepage hole in the bottom surface of the drain pipe.

5. The rainwater garden based on sponge ecosystem water purification of claim 1, characterized in that: the water collecting pit is internally provided with a filtering bag, the filtering bag is connected with a rod piece, the top of the rod piece extends out of the water collecting pit, the filtering bag can be lifted in the water collecting pit through a lifting rod piece, and the side face of the filtering bag shields the inlet of the drain pipe.

6. The rainwater garden based on sponge ecosystem water purification of claim 5, characterized in that: the filter bag comprises a rubber bag and filter particles, and the filter particles are positioned in the rubber bag.

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