CN219825526U - A ecological garden structure of rainwater for afforestation view - Google Patents

Abstract

The utility model relates to a rainwater ecological garden structure for greening landscapes, which comprises a pool body of the rainwater ecological garden, wherein the pool body comprises a water storage layer, a planting layer, a filter layer, a gravel layer and a permeable layer which are sequentially arranged from top to bottom, an overflow well is arranged in a low-lying position in the middle of the pool body, a water storage tank is respectively buried at two sides of the lower part of the pool body, a perforated pipe is buried in the permeable layer, the bottom of the overflow well is communicated with the middle of the perforated pipe, two ends of the perforated pipe are respectively communicated with the water storage tank, an overflow port communicated with a municipal drainage pipe network is arranged in the middle of the overflow well, a water pump is arranged above the water storage tank and is communicated with the water storage tank, an irrigation dropper is buried in the water storage layer and is communicated with the water pump. Through the successive layer filtration rainwater, reached the purpose of being detained the rainwater when filtering the rainwater, the perforated pipe is collected the rainwater that passes through the filtration and is carried to the storage water tank in, and when rainy season, the storage water tank mainly used is detained the rainwater, and when dry season, the storage water tank then is used for cyclic utilization rainwater to the water economy resource.

Description

A ecological garden structure of rainwater for afforestation view

Technical Field

The utility model relates to the technical field of urban rainwater treatment, in particular to a rainwater ecological garden structure for greening landscapes.

Background

The sponge city is a new generation city rain and flood management concept, and the city can be like a sponge, has good elasticity in the aspects of adapting to environmental changes, coping with natural disasters caused by rainwater and the like, and can be also called as a 'water elasticity city'.

An important component of sponge cities is the rainwater ecological garden distributed throughout the city, which often exists as part of the urban landscaping landscape, also known as a biological retention area, which refers to a low-lying area where trees or shrubs are planted in the landscaping landscape, covered by bark or land by plants, which supplements groundwater and reduces the flood peak of storm surface runoff by retaining rainwater, and also reduces pollution by adsorption, degradation, ion exchange, volatilization and other processes.

The rainwater ecological garden needs to deal with drought seasons and rain seasons at the same time, and in most areas of China, the rain seasons occupy a limited time all the year, so that the rainwater ecological garden is biased to plants which are relatively drought-tolerant in terms of plant selection, but most of the precipitation amount is concentrated in the rain seasons all the year round, and when the rain seasons come, the rainwater cannot quickly permeate into the soil and the filling layer of the rainwater ecological garden, so that plant roots at low-lying positions are soaked in water for a long time, and the growth of plants is not facilitated; meanwhile, the rainwater ecological garden needs to frequently use municipal tap water to water plants in dry seasons, which is not beneficial to saving water resources.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a rainwater ecological garden structure for greening landscapes aiming at the defects of the prior art.

The technical scheme for solving the technical problems is as follows: the utility model provides a rainwater ecological garden structure for afforestation view, includes the cell body of rainwater ecological garden, the cell body includes from top to bottom water storage layer, planting layer, filter layer, gravel layer and permeable bed that set gradually, the middle part low-lying department of cell body is equipped with the overflow well, the upper end of overflow well stretches out the water storage layer, the storage water tank has been buried respectively to cell body lower part both sides, the perforated pipe has been buried in the permeable bed, overflow well bottom with the middle part intercommunication of perforated pipe, the both ends of perforated pipe respectively with the storage water tank intercommunication, the middle part of overflow well be provided with the overflow mouth with municipal drainage pipe network intercommunication, the top of storage water tank is equipped with the water pump, the water tank intercommunication, the irrigation burette has been buried in the water storage layer, the irrigation burette with the water pump intercommunication.

The beneficial effects of the utility model are as follows: according to the rainwater ecological garden structure for greening landscapes, the rainwater is filtered layer by layer through the water storage layer, the planting layer, the filter layer, the gravel layer and the permeable layer, the purpose of retaining rainwater is achieved when the rainwater is filtered, the perforated pipe is used for collecting and conveying the filtered rainwater into the water storage tank, the water storage tank is mainly used for retaining the rainwater in rainy seasons, the water storage tank is used for recycling the rainwater when the rainy seasons are dry, the rainwater is pumped out through the water pump, and plants are watered through the irrigation dropper, so that water resources are saved, when the water storage tank is filled with water, excessive water enters from the bottom of the overflow well, and when the water level in the overflow well exceeds the overflow port, the excessive water is discharged from the overflow port, and damage and water seepage caused by overlarge water pressure at the joint of the water storage tank and the perforated pipe are avoided.

Based on the technical scheme, the utility model can also be improved as follows:

further: the top of overflow well is provided with the water inlet, the water inlet encircles the top outside setting of overflow well, just the water inlet is higher than the water storage layer.

The beneficial effects of the above-mentioned further scheme are: through setting up the water inlet, can be with the ponding direct import municipal drainage pipe net of water inlet, prevent that the plant rhizome that is in the low-lying department from being soaked in water for a long time, also avoid simultaneously that the ecological garden of rainwater is submerged completely by the precipitation that surpasses throughput.

Further: the water inlet is provided with a filter screen for blocking floating garbage.

The beneficial effects of the above-mentioned further scheme are: through setting up the filter screen, can prevent to float rubbish and pass through the water inlet gets into the overflow well to lead to municipal drainage pipe net to block up.

Further: the overflow well is provided with a check valve below the overflow port, the height of the overflow port is located between the height of the permeable layer and the height of the aquifer, and the position of the overflow port is higher than municipal drainage pipe network.

The beneficial effects of the above-mentioned further scheme are: by arranging the check valve, unfiltered rainwater can be prevented from flowing into the perforated pipe, and the pollution of groundwater after the unfiltered rainwater passes through the permeable layer is avoided; meanwhile, when the water storage tank is filled with water, redundant water can push away the valve clack of the check valve, so that water enters the overflow port and enters the municipal drainage pipe network through the overflow port, and rainwater in the municipal drainage pipe network is prevented from flowing backwards.

Further: the water pump is arranged on the ground surface at two sides of the water storage layer, the irrigation dropper is arranged at the side of plants on the water storage layer, and a screen filter is arranged at the joint of the irrigation dropper and the water pump.

The beneficial effects of the above-mentioned further scheme are: through will the water pump sets up on the earth's surface of water storage layer both sides, on the one hand easy to assemble and maintenance, the other party alright guarantee that the water pump is in better operational environment, through will the irrigation burette is arranged the side of plant on the water storage layer, can slowly even water for the plant like this for a lot of hydroenergy is stayed the water storage layer with in the planting layer, through setting up screen cloth filter, can conveniently filter the water of water pump drainage, avoid the jam the irrigation burette.

Further: the top of the water storage tank is not higher than the permeable layer.

The beneficial effects of the above-mentioned further scheme are: through with the top of storage water tank sets up to be not higher than permeable layer, can be so convenient pass through aquifer, planting layer, filter layer, rubble layer and permeable layer successive filtration's rainwater passes through pressure differential smoothly get into in the storage water tank.

Further: the water storage layer is formed by paving a plurality of pebbles, and the filter layer is formed by filling a plurality of zeolite.

Further: the permeable layer is formed by filling a plurality of gravels, the thickness of the permeable layer is not less than twice the pipe diameter of the perforated pipe, geotechnical cloth is paved between the permeable layer and the gravel layer, geotechnical cloth is paved between the filter layer and the gravel layer, and geotechnical cloth is paved between the pond body and the soil at two sides of the pond body.

The beneficial effects of the above-mentioned further scheme are: through setting up geotechnique's cloth, can prevent that the rubble from washing away and getting into permeable layer 5 and block up the gap between the gravel, be favorable to guaranteeing the stability of cell body structure.

Further: the thickness of the planting layer is 25-50cm, the thickness of the filtering layer is 30-60cm, and the thickness of the crushed stone layer is 20-40cm.

Drawings

Fig. 1 is a schematic view of a rainwater ecological garden structure for greening landscape according to an embodiment of the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. 2 parts of aquifer, 2 parts of planting layer, 3 parts of filter layer, 4 parts of gravel layer, 5 parts of permeable layer, 6 parts of overflow well, 7 parts of water storage tank, 8 parts of perforated pipe, 9 parts of water pump, 10 parts of irrigation dropper;

601. overflow port 602, water inlet 603, check valve.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

As shown in fig. 1, a rainwater ecological garden structure for greening landscape comprises a pool body of the rainwater ecological garden, the pool body comprises a water storage layer 1, a planting layer 2, a filtering layer 3, a gravel layer 4 and a permeable layer 5 which are sequentially arranged from top to bottom, an overflow well 6 is arranged at the low-lying position of the middle part of the pool body, the upper end of the overflow well 6 extends out of the water storage layer 1, a water storage tank 7 is respectively buried at two sides of the lower part of the pool body, a perforated pipe 8 is buried in the permeable layer 5, the bottom of the overflow well 6 is communicated with the middle part of the perforated pipe 8, two ends of the perforated pipe 8 are respectively communicated with the water storage tank 7, an overflow port 601 communicated with a municipal drainage pipe network is arranged at the middle part of the overflow well 6, a water pump 9 is arranged above the water storage tank 7 and is communicated with the water storage tank 7, an irrigation dropper 10 is buried in the water storage layer 1, and the irrigation dropper 10 is communicated with the water pump 9.

According to the rainwater ecological garden structure for greening landscapes, rainwater is filtered layer by layer through the water storage layer 1, the planting layer 2, the filter layer 3, the gravel layer 4 and the permeable layer 5, the purpose of retaining rainwater is achieved while the rainwater is filtered, the perforated pipe 8 is used for collecting and conveying the filtered rainwater into the water storage tank 7, the water storage tank 7 is mainly used for retaining the rainwater in rainy seasons, the water storage tank is used for recycling the rainwater in dry seasons, the rainwater is pumped out through the water pump 9, the irrigation dropper 10 is used for watering plants so as to save water resources, when the water storage tank 7 is filled with water, redundant water enters from the bottom of the overflow well 6, and when the water level in the overflow well 6 exceeds the overflow port 601, the redundant water is discharged from the overflow port 601, so that the junction of the water storage tank 7 and the perforated pipe 8 is prevented from being damaged and seeping water due to overlarge water pressure.

In one or more embodiments of the utility model, the top of the overflow well 6 is provided with a water inlet 602, the water inlet 602 is disposed around the top outside of the overflow well 6, and the water inlet 602 is higher than the aquifer 1. Through setting up water inlet 602, can be with the ponding direct import municipal drainage pipe net of water inlet 602, prevent that plant rhizome in low-lying department from being soaked in water for a long time, also avoid simultaneously that the ecological garden of rainwater is submerged completely by the precipitation that surpasses throughput.

In practice, the height of the water inlet 602 above the aquifer 1 is 15-30cm. Optionally, the height of the water inlet 602 above the aquifer 1 is 20cm.

Optionally, in one or more embodiments of the present utility model, a filter screen for blocking floating garbage is provided at the water inlet 602. By providing the screen, floating waste is prevented from entering the overflow well 6 through the water inlet 602 and causing a blockage of the municipal drainage network.

In one or more embodiments of the present utility model, a check valve 603 is disposed on the overflow well 6 below the overflow port 601, the height of the overflow port 601 is located between the height of the permeable layer 5 and the height of the aquifer 1, and the overflow port 601 is located above the municipal drainage pipe network. When rainwater flows into the water inlet of the overflow well 6, since the rainwater does not pass through the aquifer 1, the planting layer 2, the filter layer 3, the crushed stone layer 4 and the permeable layer 5, if the rainwater is directly discharged into the perforated pipe 8, the permeable layer 5 and the water in the water storage tank 7 may be polluted. By providing the check valve 603, unfiltered rainwater can be prevented from flowing into the perforated pipe 8, and the groundwater is prevented from being polluted after the unfiltered rainwater passes through the permeable layer 5; meanwhile, when the water storage tank 7 is filled with water, redundant water can push away the valve clack of the check valve 603, so that water enters the overflow port 601 and enters the municipal drainage pipe network through the overflow port 601, and rainwater in the municipal drainage pipe network is prevented from flowing backwards.

It should be noted that in embodiments of the present utility model, the opening direction of the check valve flap is toward the top of the overflow well.

In one or more embodiments of the present utility model, the water pump 9 is disposed on the ground surface at both sides of the aquifer 1, the irrigation dropper 10 is disposed beside the plants on the aquifer 1, and a screen filter is disposed at the junction of the irrigation dropper 10 and the water pump 9.

The water pump 9 is arranged on the ground surface at two sides of the water storage layer 1, so that on one hand, the water pump 9 is convenient to install and maintain, on the other hand, the water pump 9 can be ensured to be in a better working environment, and by arranging the irrigation dropper 10 at the side of plants on the water storage layer 1, the plants can be slowly and uniformly watered, so that a plurality of water can be remained in the water storage layer 1 and the planting layer 2; because the rainwater ecological garden has good water permeability, most of water can pass through the water storage layer 1 and the planting layer 2 in a short time when plants are irrigated by directly spraying water, so that the plants cannot absorb water resources and water resources are wasted, and the irrigation dropper 10 can slowly and uniformly irrigate the plants, so that a plurality of water can be remained in the water storage layer and the planting layer; by arranging the screen filter, water pumped and discharged by the water pump 9 can be filtered conveniently, and the irrigation dropper 10 is prevented from being blocked.

Optionally, in one or more embodiments of the utility model, the top of the water storage tank 7 is not higher than the water permeable layer 5. The beneficial effects of the above-mentioned further scheme are: through with the top of storage water tank 7 sets up to be not higher than permeable layer 5, can be so convenient pass through aquifer 1, planting layer 2, filter layer 3, gravel layer 4 and permeable layer 5 successive filtration's rainwater passes through pressure differential smoothly get into in the storage water tank 7.

In one or more embodiments of the utility model, the aquifer 1 is laid from a number of pebbles and the filter layer 3 is formed from a number of zeolite fills.

In one or more embodiments of the present utility model, the permeable layer 5 is formed by filling a plurality of gravels, and the thickness of the permeable layer 5 is not less than twice the pipe diameter of the perforated pipe 8, geotextile is laid between the permeable layer 5 and the crushed stone layer 4, geotextile is laid between the filter layer 3 and the crushed stone layer 4, and geotextile is laid between the pond body and soil at two sides of the pond body. Through setting up geotechnique's cloth, can prevent that the rubble from washing away and getting into permeable layer 5 and block up the gap between the gravel, be favorable to guaranteeing the stability of cell body structure. In the embodiment of the utility model, the pipe diameter of the perforated pipe 8 is 10cm, and the thickness of the permeable layer 5 is 25cm.

In one or more embodiments of the present utility model, the thickness of the planting layer 2 is 25-50cm, the thickness of the filtering layer 3 is 30-60cm, and the thickness of the crushed stone layer 4 is 20-40cm.

The U-shaped Andi structure is characterized in that the thickness of the planting layer 2 is 40cm, the plant root system grows in the planting layer 2, the thickness of the filtering layer 3 is 40cm, and the thickness of the crushed stone layer 4 is 30cm.

The working principle of the rainwater ecological garden structure for greening landscapes is as follows:

in dry season, a small amount of precipitation is filtered layer by layer through the water storage layer 1, the planting layer 2, the filtering layer 3, the gravel layer 4 and the permeable layer 5, then enters the perforated pipe 8, finally is guided into the water storage tank 7 through the perforated pipe 8, when no precipitation occurs for a long time, water in the water storage tank 7 is pumped out through the water pump 9, and is sent into the irrigation dropper 10 to irrigate plants, and as the water directly enters the water storage layer 1 through the irrigation dropper 10, the water outlet speed of the irrigation dropper 10 is slower, the water can be fully absorbed by soil of the planting layer 2 after penetrating into the planting layer 2;

in rainy season, a large amount of precipitation only partly filters and gets into storage water tank 7 through the successive layer of aquifer 1, planting layer 2, filter layer 3, gravel layer 4 and permeable layer 5, still a large amount of ponding is in the low-lying department of the ecological garden of rainwater, when ponding water level reaches the height of water inlet 602, ponding will get into overflow well 6, because the stop of check valve 603, ponding can get into municipal drainage pipe net through overflow port 601, the drainage speed has been accelerated, simultaneously when the storage water tank 7 is full back, unnecessary water in permeable layer 5 will fill up perforated pipe 8 gradually, if perforated pipe 8 is filled up, then water will get into overflow well 6 bottom through perforated pipe 8, when water arrives the height that check valve 603 is located, if water pressure below check valve 603 is greater than water pressure above check valve 603, check valve 603 will open and release its below water, check valve 603 plays the effect of relief valve this moment, the maximum water pressure in storage water tank 7 and the perforated pipe 8 has been restricted.

The rainwater ecological garden structure for greening landscapes has the following advantages:

(1) According to the utility model, rainwater is filtered layer by layer through the water storage layer 1, the planting layer 2, the filter layer 3, the gravel layer 4 and the permeable layer 5, the purpose of retaining the rainwater is achieved while the rainwater is filtered, the filtered rainwater is collected and conveyed into the water storage tank 7 through the perforated pipe 8, the water storage tank 7 is mainly used for retaining the rainwater in rainy seasons, the water storage tank 7 is used for recycling the rainwater in dry seasons, the rainwater is pumped out through the water pump 9, and the plants are watered through the irrigation dropper 10, so that the water resource is saved;

(2) The overflow well 6 can directly guide the accumulated water which overflows the water inlet 602 of the overflow well into a municipal drainage pipe network, prevent plant roots and stems at low-lying places from being soaked in water for a long time, and simultaneously prevent the rainwater ecological garden from being completely submerged by precipitation exceeding the treatment capacity;

(3) The water storage tank 7 is communicated with the overflow well 6 through the perforated pipe 8, when the water storage tank 7 is filled with water, the excessive water enters the overflow well 6 from the bottom of the overflow well 6, and when the water level in the overflow well 6 overflows through the overflow port 601, the excessive water is discharged from the overflow port 601, so that the joint of the water storage tank 7 and the perforated pipe 8 is prevented from being damaged and permeated due to overlarge water pressure.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (9)

1. A rainwater ecological garden structure for afforestation view, its characterized in that: including the cell body in the ecological garden of rainwater, the cell body includes by last aquifer (1), planting layer (2), filter layer (3), gravel layer (4) and permeable layer (5) that set gradually down, the middle part low-lying department of cell body is equipped with overflow well (6), the upper end of overflow well (6) stretches out aquifer (1), storage water tank (7) have been buried respectively to cell body lower part both sides, permeable layer (5) have buried perforated pipe (8), overflow well (6) bottom with the middle part intercommunication of perforated pipe (8), the both ends of perforated pipe (8) respectively with storage water tank (7) intercommunication, the middle part of overflow well (6) be provided with overflow mouth (601) with municipal drainage pipe network intercommunication, the top of storage water tank (7) is equipped with water pump (9), water pump (9) with storage water tank (7) intercommunication, water storage layer (1) have buried irrigation (10) respectively, irrigation dropper (10) with water pump (9) intercommunication.

2. A stormwater ecological garden structure for greening landscapes as claimed in claim 1, wherein: the top of overflow well (6) is provided with water inlet (602), water inlet (602) encircle the top outside of overflow well (6) sets up, just water inlet (602) are higher than water storage layer (1).

3. A stormwater ecological garden structure for greening landscapes as claimed in claim 2, wherein: a filter screen for blocking floating garbage is arranged at the water inlet (602).

4. A stormwater ecological garden structure for greening landscapes as claimed in claim 2, wherein: the overflow well (6) is located below the overflow port (601), the height of the overflow port (601) is located between the height of the permeable layer (5) and the height of the aquifer (1), and the position of the overflow port (601) is higher than municipal drainage pipe network.

5. A stormwater ecological garden structure for greening landscapes as claimed in claim 1, wherein: the water pump (9) is arranged on the ground surface at two sides of the water storage layer (1), the irrigation dropper (10) is arranged beside plants on the water storage layer (1), and a screen filter is arranged at the joint of the irrigation dropper (10) and the water pump (9).

6. A stormwater ecological garden structure for greening landscapes as claimed in claim 1, wherein: the top of the water storage tank (7) is not higher than the permeable layer (5).

7. A stormwater ecological garden structure for greening landscapes as claimed in claim 1, wherein: the water storage layer (1) is formed by paving a plurality of pebbles, and the filter layer (3) is formed by filling a plurality of zeolite.

8. A stormwater ecological garden structure for greening landscapes as claimed in claim 1, wherein: the permeable layer (5) is formed by filling a plurality of gravels, the thickness of the permeable layer (5) is not less than twice the pipe diameter of the perforated pipe (8), geotechnical cloth is laid between the permeable layer (5) and the gravel layer (4), geotechnical cloth is laid between the filter layer (3) and the gravel layer (4), and geotechnical cloth is laid between the pond body and the soil at two sides of the pond body.

9. A stormwater ecological garden structure for a greening landscape as claimed in any of claims 1-8, wherein: the thickness of the planting layer (2) is 25-50cm, the thickness of the filtering layer (3) is 30-60cm, and the thickness of the crushed stone layer (4) is 20-40cm.