Rainwater filtering type ecological tree pool

Abstract

The utility model discloses a rainwater filtration type ecological tree pool relates to ecological tree pool technical field, including tree pool planting area and purification area, the purification area is provided with the pebble layer, gravel layer, charcoal layer, ceramsite layer and gravel layer from top to bottom, the purification area is provided with the pebble layer, gravel layer, biochar layer, ceramsite layer and gravel layer. The purification area is provided with a gravel layer, a water storage layer is further arranged on the lower side of the gravel layer of the purification area, the tree pool planting area is provided with a sewage intercepting basket, a covering layer, a planting soil layer, a gravel layer and a gravel layer from top to bottom, and the upper side and the lower side of the gravel layer of the tree pool planting area are further covered with geotechnical cloth. Rainwater runoff is effectively purified, soil loss is prevented, water resources are fully utilized, healthy growth of trees is promoted, and the urban ecological environment is improved.

Description

Technical Field

[0001] This utility model relates to the field of ecological tree pool technology, specifically to a rainwater filtering ecological tree pool. Background Technology

[0002] With the development of green urban landscapes, various plants are planted along the roadsides in many cities. However, the current planting method involves directly planting saplings on the shoulders of urban roads. The planting area consists of soil, which is then enclosed by concrete frames to protect the soil. However, this structure makes it easy for debris to remain inside the enclosure, and the unprotected soil is prone to erosion in rainy environments. Furthermore, the interaction between plants and rainwater hinders the circulation, collection, and filtration of rainwater, and the planting soil is also prone to pollution. Utility Model Content

[0003] Purpose of the utility model: The technical problem to be solved by this utility model is to provide a rainwater filtering ecological tree pool, which solves the problem that existing tree pools do not have filtering and purification functions.

[0004] Technical solution

[0005] To solve the above problems, the technical solution provided by this utility model is as follows:

[0006] A rainwater-filtering ecological tree pit includes a tree pit planting area and a purification area. The purification area is located on both sides of the tree pit planting area. The purification area is provided with a pebble layer, a sand and gravel layer, a biochar layer, a ceramsite layer and a gravel layer from top to bottom. A water storage layer is also provided under the gravel layer of the purification area. The tree pit planting area is provided with a sewage interception basket, a covering layer, a planting soil layer, a sand and gravel layer and a gravel layer from top to bottom. Geotextile is also covered on the upper and lower sides of the gravel layer of the tree pit planting area.

[0007] Furthermore, metal connectors are provided on both sides of the purification area, and tree pit covers covering the tree pit planting area and the purification area are installed on the metal connectors.

[0008] Furthermore, the pebbles in the pebble layer have a diameter of φ30mm~φ50mm, the biochar layer is made of biochar, the ceramsite layer is made of ceramsite, and the gravel layer is made of gravel.

[0009] Furthermore, the gravel layer in the tree pit planting area is below a plain soil layer, and the plain soil layer and the gravel layer in the tree pit planting area are separated by the geotextile.

[0010] Furthermore, there are permeation pipes connecting the two sides of the covering layer in the tree pit planting area to the pebble layer in the purification area.

[0011] Furthermore, rainwater recycling pipes and perforated pipes are installed within the gravel layer of the tree pit planting area.

[0012] Furthermore, a drainage pipe is provided between the water storage layer of the purification zone and the gravel layer of the tree pit planting zone, and the drainage pipe is connected to the rainwater recycling pipe.

[0013] Furthermore, the intercepting baskets are embedded on both sides inside the covering layer.

[0014] Furthermore, the purification zone is flanked by asphalt pavement.

[0015] Beneficial effects

[0016] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0017] The technical solution provided by this utility model significantly improves the filtration and purification efficiency of pollutants in rainwater by using the filler material in the purification zone for layer-by-layer filtration, ensuring better removal of pollutants and solving the pollution problem caused by rainfall.

[0018] By utilizing the intercepting baskets, loosening soil structure, and permeable filtration structure in the tree pit planting area, rainwater is efficiently purified and utilized. While ensuring effective replenishment of the water needed by the trees, it also has a strong water storage capacity. The filtered clean rainwater can be supplied to the tree roots for absorption and utilization, which not only saves water resources but also improves the survival rate and growth quality of the trees.

[0019] The ecological tree pit integrates multiple functions such as rainwater storage, infiltration, and purification, effectively purifying rainwater runoff, preventing soil erosion, making full use of water resources, promoting the healthy growth of trees, and improving the urban ecological environment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model. Detailed Implementation

[0021] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1

[0023] Combined with appendix Figure 1A rainwater-filtering ecological tree pit consists of a tree pit planting area and a purification area. The purification area is located on both sides of the tree pit planting area. Metal connectors 1 are provided on the outer edges of the purification areas on both sides. Tree pit covers 2 are installed on the metal connectors 1. The tree pit covers 2 cover the tree pit planting area and the purification areas located on both sides of the tree pit planting area. The metal connectors 1 provide support for the tree pit covers 2. There is a certain gap between the vertical covers and the tree pit planting area and the purification area. The tree pit covers 2 achieve the function of initially intercepting rainwater erosion and reducing runoff pollution caused by rainwater erosion of the ground.

[0024] The tree pit cover 2 has a partial opening for trees to pass through, and the tree pit cover 2 also has holes for rainwater to flow through.

[0025] The purification zone under the tree pit cover 2 is provided with a pebble layer 7, a sand and gravel layer 8, a biochar layer 9, a ceramsite layer 11, and a gravel layer 12 from top to bottom. The rainwater is filtered layer by layer through the filter layers composed of the above different materials. A water storage layer 14 is provided under the gravel layer 12. The water storage layer 14 is a water storage space. The rainwater flowing into the purification zone is filtered through the pebble layer 7, sand and gravel layer 8, biochar layer 9, ceramsite layer 11, and gravel layer 12 and stored in the water storage layer.

[0026] To ensure faster and smoother filtration and removal of pollutants, the pebble layer 7 uses pebbles with a diameter of φ30mm to φ50mm, which effectively intercepts debris such as leaves. Below the pebble layer 7 is a sand and gravel layer 8, which filters and purifies rainwater. Below the sand and gravel layer 8 is a biochar layer 9, made of biochar. Below the biochar layer 9 is a ceramsite layer 11, made of ceramsite, which has strong water absorption and retention capacity, is not easily evaporated, and has good air permeability. Below the ceramsite layer 11 is a gravel layer 12, made of gravel. Through this multi-layered filtration system, rainwater can quickly be filtered to remove impurities and harmful substances, achieving the simple and efficient adsorption, filtration, and purification of rainwater.

[0027] In addition to the tree pit cover 2 at the top, the tree pit planting area also includes a waste trap 4, a covering layer 5, a planting soil layer 6, a sand and gravel layer 19, and a gravel layer 17. The waste trap 4 is embedded in the covering layer 5 on both sides.

[0028] The tree roots are planted in the planting soil layer 6, and the covering layer 5 on the planting soil layer 6 protects the planting soil layer 6.

[0029] The gravel layer 17 is followed by a plain soil layer 21. Geotextile 20 on the underside of the gravel layer 17 separates the gravel layer 17 from the plain soil layer 21.

[0030] Both the tree planting area and the purification area are equipped with sand and gravel layers, which play a good role in filtration and support.

[0031] The gravel layer 17 at the bottom is covered with geotextile 20 on both the upper and lower surfaces. The geotextile 20 can play a good role in isolation, filtration and drainage, and the tree pit planting area is equipped with perforated pipes 18 for seepage.

[0032] Furthermore, there are infiltration pipes 3 that connect the two sides of the covering layer 5 of the tree pit planting area with the pebble layer 7 of the purification area located on both sides of the tree pit planting area. When the rainwater is too heavy, the tree pit planting area can directly discharge rainwater from the tree pit planting area into the purification area through the infiltration pipes 3, thereby reducing the water flow speed in the tree pit planting area.

[0033] Furthermore, a drainage pipe 16 is provided between the water storage layer 14 of the purification zone and the gravel layer 12 of the tree pit planting zone. The drainage pipe 16 can introduce the water stored in the water storage layer 14 into the gravel layer 12 of the tree pit planting zone. A rainwater recycling pipe connected to the drainage pipe 16 can be installed in the gravel layer 12.

[0034] When there is too much water in the water purification area, resulting in insufficient storage capacity of the lower water storage layer 14, the purified water is directly discharged into the rainwater reuse pipeline through the drainage pipe 16 located in the lower layer. On the one hand, this realizes the resource utilization, rationalization and maximization of rainwater, and on the other hand, it prevents excessive rainwater accumulation from affecting the growth of plants in the planting area.

[0035] In the tree pit planting area, the sand layer and the gravel layer 12 are separated by a permeable geotextile 20. The gravel layer 12 is covered with several perforated pipes 18, which are used to drain the filtered rainwater. When the water flows from top to bottom through the tree pit cover 2, the covering layer 5, the planting soil layer 6, the sand and gravel layer 19, the geotextile 20, and the gravel layer 17, if there is too much water, the perforated pipes 18 are installed below the gravel layer 12 to drain the water from the pit.

[0036] Because debris accumulates on the surface of the tree pit, affecting rainwater infiltration, and the surface soil inside the pit is prone to compaction, two intercepting baskets 4 are installed in the planting area of ​​the tree pit. The intercepting baskets 4 are embedded in the two sides of the covering layer 5 by threaded connection. The intercepting baskets 4 can temporarily collect the debris flowing into the planting area of ​​the tree pit. When the debris in the intercepting baskets 4 accumulates and affects rainwater infiltration, simply rotate and pull out the intercepting baskets 4, clean the debris in the baskets, and then put the intercepting baskets 4 back to improve the water permeability of the pit.

[0037] When it is necessary to loosen the growing soil layer regularly, simply remove and rotate the intercepting basket 4, and use the soil loosening structure of the intercepting basket 4 to turn over the surface of the growing soil layer.

[0038] In use, the purification zones are set on both sides of the tree pit planting area, and the sides of the purification zone are the asphalt road surface 10. The rainwater filtering ecological tree pit composed of the tree pit planting area and the purification zone is generally set on the road shoulder.

[0039] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An ecological tree pit with rainwater filtration, characterized in that, The tree pool planting area and the purification area are arranged on both sides of the tree pool planting area, the purification area is provided with a cobblestone layer, a sandstone layer, a biochar layer, a ceramsite layer and a gravel layer from top to bottom, the lower side of the gravel layer of the purification area is further provided with a water storage layer, the tree pool planting area is provided with a sewage interception basket, a covering layer, a planting soil layer, a sandstone layer and a gravel layer from top to bottom, and the gravel layer of the tree pool planting area is further covered with geotextile on both sides.

2. The ecological tree pool with rainwater filtration according to claim 1, characterized in that, Metal connecting pieces are arranged on both sides of the purification area, and a tree pool cover plate covering the tree pool planting area and the purification area is arranged on the metal connecting pieces.

3. The ecological tree pool with rainwater filtration according to claim 1, characterized in that, The diameter of the cobblestone in the cobblestone layer is φ30mm-φ50mm, the material of the biochar layer is biochar, the material of the ceramsite layer is ceramsite, and the material of the gravel layer is gravel.

4. The ecological tree pool with rainwater filtration according to claim 1, characterized in that, The lower side of the gravel layer of the tree pool planting area is a plain soil layer, and the plain soil layer is separated from the gravel layer of the tree pool planting area by the geotextile.

5. The ecological tree pool with rainwater filtration according to claim 1, characterized in that, Permeation pipes are communicated between both sides of the covering layer of the tree pool planting area and the cobblestone layer of the purification area.

6. The ecological tree pool with rainwater filtration according to claim 1, characterized in that, Rainwater recycling pipes and perforated pipes are arranged in the gravel layer of the tree pool planting area.

7. The ecological tree pit with rainwater filtration according to claim 6, characterized in that, A drainage pipe is arranged between the water storage layer of the purification area and the gravel layer of the tree pool planting area, and the drainage pipe is communicated with the rainwater recycling pipes.

8. The ecological tree pool with rainwater filtration according to claim 1, characterized in that, The sewage interception baskets are respectively embedded in both sides of the covering layer.

9. The ecological tree pool with rainwater filtration according to claim 1, characterized in that, Both sides of the purification area are asphalt pavement.

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