Rainwater garden

Abstract

The utility model relates to a rainwater garden, which belongs to the technical field of municipal engineering and comprises a soil base layer, a placing groove is arranged in the soil base layer, a water storage tank is arranged in the placing groove, and internal threads are arranged at the top end of the inner wall of the water storage tank. The rainwater garden has the advantages that a large amount of rainwater is collected in the water storage tank in the middle of the soil base layer through the inclined area water grooves, so that the water storage capacity of the rainwater garden can be improved, and the rainwater can be used as reserve water of the rainwater garden, so that the rainwater garden can be used in drought weather; by arranging a grating cover, large sundries such as plastic and leaves in the rainwater garden can be blocked, and by arranging an impurity filter screen, small sundries such as sand and stones in rainwater can be blocked, so that the situation that the water storage tank is blocked and filled with the sundries can be avoided; therefore, the rainwater storage space in the water storage tank is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal engineering, in particular to a rainwater garden. Background Art

[0002] A rain garden is a naturally formed or artificially excavated shallow green space that is used to collect and absorb rainwater from roofs or the ground. Through the combined action of plants and sand, the rainwater is purified and gradually seeps into the soil, conserving groundwater or replenishing urban water such as landscape water and toilet water. It is an ecologically sustainable stormwater control and rainwater utilization facility.

[0003] After searching, a Chinese patent disclosed a rain garden (authorization announcement number CN207284362U), in which a water-retaining granular layer, a water-retaining sand layer, and a planting layer are arranged in sequence from bottom to top within the base of the rain garden, and a perforated pipe is provided in the water-retaining granular layer, wherein: the matrix used for the planting layer is planting sand or planting soil improved from planting sand, and the planting sand is pottery sand prepared using fly ash. Although the patented technology has the arrangement of a granular layer, a sand layer and a planting layer with water-retaining properties, the water retention rate of the rain garden can reach 60-80%, which greatly improves its water retention performance compared with the water retention rate of 20-30% of a general rain garden, thereby increasing the survival rate of plants; at the same time, solid waste fly ash is used as the raw material for planting sand, which reduces the cost of raw materials, realizes the high added value conversion of solid waste, and achieves effective secondary utilization of waste resources.

[0004] However, the above device still has some shortcomings in actual use. The most obvious one is that the above rain garden adopts a water-retaining granular layer. Although it has good water retention performance, when the rainfall is large, the rain garden does not have a good water storage function, resulting in excessive rainwater content therein. In drought conditions, it cannot actively supply water and has poor drought resistance. In addition, the above rain garden cannot supply water to plants in different areas according to the needs of the plants, and is not practical. Utility Model Content

[0005] In view of the above problems existing in the prior art, the main purpose of the present invention is to provide a rain garden.

[0006] The technical solution of the present utility model is as follows: a rainwater garden includes a soil base layer, a shelf groove is provided inside the soil base layer, a water tank is placed inside the shelf groove, the top of the inner wall of the water tank is provided with an internal thread, a water purification tray is provided inside the water tank, the outer wall of the water purification tray is provided with an external thread, the water purification tray is threadedly connected to the water tank, the bottom end of the inner wall of the water purification tray is fixedly connected to an impurity filter screen, a grille cover is inserted in the center of the soil base layer, and an adjustment mechanism is provided inside the soil base layer.

[0007] By adopting the above technical solution, a large amount of rainwater can be stored by collecting the water in the water storage tank in the middle of the soil base through the inclined surface trough, so as to improve the water storage capacity of the rain garden and serve as reserve water for the rain garden, so that it can be used in dry weather, thereby improving the drought resistance of the device.

[0008] As a preferred embodiment, the regulating mechanism includes water sprinklers arranged at the four corners inside the soil base layer, four branch pipes are arranged inside the water tank, one end of each branch pipe passes through the interior of the soil base layer and is fixedly connected to the corresponding water sprinkler head, soil moisture sensors are arranged at the four corners outside the soil base layer, solenoid valves are fixedly installed inside the branch pipes, and a controller is arranged outside the soil base layer.

[0009] By adopting the above technical solution, the soil moisture in the planting area can be detected through the setting of the soil moisture sensor. If it is detected that the water content in the planting area is low, the information will be transmitted to the external controller, and the controller will control the water pump and the solenoid valve in the corresponding branch pipe to open, so that the stored rainwater in the water tank can be pumped into the branch pipe through the water pump.

[0010] As a preferred embodiment, a water supply mechanism is provided inside the water tank, and the water supply mechanism includes a water pump fixedly installed inside the water tank, the input end of the water pump extends to the inside of the water tank, the output end of the water pump is fixedly connected to a collecting ball, and the ends of the branch pipes away from the sprinkler heads are fixedly connected to the collecting ball.

[0011] By adopting the above technical solution and setting a water pump, rainwater in the water storage tank can be transported to the corresponding sprinkler head.

[0012] As a preferred embodiment, the interior of the soil base layer includes a water-storing granular layer, a water-seepage layer, a permeable sand and gravel layer and a planting layer from bottom to top, and a sloping water trough for facilitating water accumulation is provided at the top of the soil base layer and located on the periphery of the grille cover.

[0013] By adopting the above technical solution and setting up a water storage particle layer, rainwater that seeps into the ground can be stored and used when vegetation is short of water.

[0014] As a preferred embodiment, the seepage layer is arranged on the top of the water storage particle layer, the permeable sand and gravel layer is arranged on the side of the seepage layer away from the water storage particle layer, the planting layer is arranged on the side of the permeable sand and gravel layer away from the seepage layer, and the planting layer is at the top.

[0015] By adopting the above technical solution, an overall soil base layer can be formed through the water-storing granular layer, the water-seepage layer, the permeable sand and gravel layer and the planting layer.

[0016] As a preferred embodiment, planting areas are provided at the four corners of the top of the soil base layer, the soil moisture sensor is fixedly installed inside the corresponding planting area, and green plants are planted on the top of the soil base layer.

[0017] By adopting the above technical solution, the land is divided into different planting areas, making management easier.

[0018] As a preferred embodiment, a pull ring is fixedly connected to the inner wall of the water purification tray, a handle is fixedly connected to the top of the grille cover, and the grille cover is a transparent glass component.

[0019] By adopting the above technical solution and providing a transparent glass component grille cover, personnel can observe the accumulation of garbage in the impurity filter.

[0020] As a preferred implementation manner, the soil moisture sensor, the solenoid valve and the water pump are all electrically connected to the controller.

[0021] By adopting the above technical solution and setting the controller, the soil moisture sensor, the solenoid valve and the water pump can be powered.

[0022] Compared with the prior art, the advantages and positive effects of the present invention are:

[0023] 1. In the present invention, when the rainfall is large, rainwater can be absorbed by various layers in the soil base and stored below the surface, and can be collected in the water storage tank in the middle of the soil base through the inclined surface water trough, thereby storing a large amount of rainwater, so as to improve the water storage capacity of the rain garden and serve as reserve water for the rain garden, so that it can be used in dry weather, thereby improving the drought resistance of the device, and the provision of the grille cover can block larger debris such as plastic and leaves in the rain garden, and the provision of the impurity filter can block small debris such as sand and stone in the rainwater, thereby preventing debris from clogging and filling the water tank, thereby ensuring the rainwater storage space in the water tank, and the use of the external thread and the internal thread can make the water purification tray detachable, so as to clean the debris in the water purification tray, thereby improving the practicality of the device.

[0024] 2. In the present invention, the soil moisture in the planting area can be detected by setting a soil moisture sensor. If it is detected that the water content in the planting area is low, the information will be transmitted to the external controller, and the controller will control the water pump and the solenoid valve in the corresponding branch pipe to open, so that the rainwater stored in the water tank can be pumped into the branch pipe through the water pump, and transported to the corresponding sprinkler head through the branch pipe, so that the rainwater can be sprayed into the corresponding water-deficient area through the sprinkler head, and water supply operations can be performed on plants in different planting areas according to the needs of the plants. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The utility model provides an overall schematic diagram of a rain garden;

[0026] Figure 2 A cross-sectional view of a rain garden is provided for the utility model;

[0027] Figure 3 The utility model provides a rain garden Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 The utility model provides a rain garden Figure 2 Enlarged view of point B in the middle.

[0029] Legend: 1. Soil base layer; 101. Water-retaining granular layer; 102. Seepage layer; 103. Permeable sand and gravel layer; 104. Planting layer; 2. Soil moisture sensor; 3. Sprinkler head; 4. Sloping water trough; 5. Grille cover; 6. Controller; 7. Water storage tank; 8. Internal thread; 9. External thread; 10. Impurity filter; 11. Water purification tray; 12. Water pump; 13. Branch pipe; 14. Manifold ball; 15. Solenoid valve. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0031] Reference Figure 1-4, a rain garden includes a soil base 1, a shelving groove is provided inside the soil base 1, a water tank 7 is placed inside the shelving groove, the top of the inner wall of the water tank 7 is provided with an internal thread 8, a water purification tray 11 is provided inside the water tank 7, the outer wall of the water purification tray 11 is provided with an external thread 9, the water purification tray 11 is threadedly connected to the water tank 7, and the bottom end of the inner wall of the water purification tray 11 is fixedly connected with an impurity filter 10, a grille cover 5 is plugged into the center of the soil base 1, and an adjusting mechanism is provided inside the soil base 1. When the rainfall is large, rainwater can be absorbed by various layers in the soil base 1 and stored under the surface, and can be collected in the water tank 7 in the middle of the soil base 1 through the inclined surface water trough 4, and then discharged. It can store a large amount of rainwater to improve the water storage capacity of the rain garden and serve as reserve water for the rain garden, so that it can be used in dry weather, thereby improving the drought resistance of the device. The grille cover 5 can block larger debris such as plastic and leaves in the rain garden, and the impurity filter 10 can block small debris such as sand and gravel in the rainwater, thereby preventing debris from clogging and filling the water tank 7, thereby ensuring the rainwater storage space in the water tank 7. The use of the external thread 9 and the internal thread 8 can make the water purification tray 11 detachable, so that the debris in the water purification tray 11 can be cleaned, thereby improving the practicality of the device.

[0032] Reference Figure 4 The regulating mechanism includes a sprinkler head 3 arranged at the four corners inside the soil base layer 1, four branch pipes 13 are arranged inside the water tank 7, one end of the branch pipe 13 passes through the interior of the soil base layer 1 and is fixedly connected to the corresponding sprinkler head 3, and soil moisture sensors 2 are arranged at the four corners of the outside of the soil base layer 1, and electromagnetic valves 15 are fixedly installed inside the branch pipe 13. A controller 6 is arranged on the outside of the soil base layer 1. Through the setting of the soil moisture sensor 2, the soil moisture in the planting area can be detected. If it is detected that the water content in the planting area is low, the information will be transmitted to the external controller 6, and the controller 6 will control the water pump 12 and the electromagnetic valve 15 in the corresponding branch pipe 13 to open, so that the stored rainwater in the water tank 7 can be pumped into the branch pipe 13 through the water pump 12, and transported to the corresponding sprinkler head 3 through the branch pipe 13, so that the rainwater can be sprayed into the corresponding water-deficient area through the sprinkler head 3, so that water supply operations can be performed on plants in different planting areas according to the needs of plants.

[0033] Reference Figure 2 and Figure 3A water supply mechanism is provided inside the water tank 7, and the water supply mechanism includes a water pump 12 fixedly installed inside the water tank 7. The input end of the water pump 12 extends to the inside of the water tank 7, and the output end of the water pump 12 is fixedly connected to a collecting ball 14. The ends of the branch pipes 13 away from the sprinkler heads 3 are fixedly connected to the collecting ball 14. Through the setting of the water pump 12, the rainwater in the water tank 7 can be transported to the corresponding sprinkler heads 3, and through the setting of the collecting ball 14, the single water supply port of the water pump 12 can be set to four branch pipes 13, thereby providing corresponding water supply needs for four different planting areas.

[0034] Reference Figure 2 The interior of the soil base layer 1 includes a water-storing granular layer 101, a water-seepage layer 102, a permeable sand and gravel layer 103 and a planting layer 104 from bottom to top. A sloping water trough 4 for accumulating water is provided at the top of the soil base layer 1 and on the periphery of the grille cover 5. The water-storing granular layer 101 can store rainwater that seeps into the ground for use when the vegetation is short of water. The setting of the water-seepage layer 102 and the permeable sand and gravel layer 103 can facilitate rainwater to quickly seep into the ground, reduce the amount of rainwater retained on the surface, and avoid rainwater submerging vegetation.

[0035] Reference Figure 4 The seepage layer 102 is arranged on the top of the water-retaining granular layer 101, the permeable sand and gravel layer 103 is arranged on the side of the seepage layer 102 away from the water-retaining granular layer 101, the planting layer 104 is arranged on the side of the permeable sand and gravel layer 103 away from the seepage layer 102, and the planting layer 104 is at the top. The entire soil base layer 1 can be formed by the water-retaining granular layer 101, the seepage layer 102, the permeable sand and gravel layer 103 and the planting layer 104.

[0036] Reference Figure 3 Planting areas are set at the four corners of the top of the soil base layer 1, and the soil moisture sensor 2 is fixedly installed inside the corresponding planting area. Green plants are planted on the top of the soil base layer 1. By dividing it into different planting areas, it is convenient for management, and different plants can be planted in different planting areas.

[0037] Reference Figure 3 The inner wall of the water purification tray 11 is fixedly connected with a pull ring, and the top of the grille cover 5 is fixedly connected with a handle. The grille cover 5 is a transparent glass component. The pull ring is set to facilitate the removal of the water storage tank 7 from the water purification tray 11. The transparent glass component grille cover 5 is set to facilitate personnel to observe the garbage accumulation in the impurity filter 10.

[0038] Reference Figure 1 The soil moisture sensor 2, the solenoid valve 15 and the water pump 12 are all electrically connected to the controller 6. Through the setting of the controller 6, the soil moisture sensor 2, the solenoid valve 15 and the water pump 12 can be powered.

[0039] Working principle: First, by dividing the garden into different planting areas, management is facilitated, and different plants can be planted in different planting areas. When the rainfall is large, the water-storing granular layer 101, the water-permeable layer 102, the permeable sand and gravel layer 103 and the planting layer 104 in the soil base layer 1 can absorb the rainwater and store it under the surface. The rainwater can also be collected in the water storage tank 7 in the middle of the soil base layer 1 through the inclined water trough 4, thereby storing a large amount of rainwater, so as to improve the water storage capacity of the rain garden and serve as reserve water for the rain garden, so that it can be used in dry weather, thereby improving the drought resistance of the device.

[0040] Then, the soil moisture in the planting area can be detected by the soil moisture sensor 2. If it is detected that the water content in the planting area is low, the information will be transmitted to the external controller 6, and the controller 6 will control the water pump 12 and the electromagnetic valve 15 in the corresponding branch pipe 13 to open, so that the rainwater stored in the water tank 7 can be pumped into the branch pipe 13 by the water pump 12, and then transported to the corresponding sprinkler head 3 through the branch pipe 13. In this way, the rainwater can be sprayed into the corresponding water-deficient area through the sprinkler head 3, and water can be supplied to the plants in different planting areas according to the needs of the plants.

[0041] Then, the grille cover 5 can be used to block larger debris such as plastic and leaves in the rain garden, and the impurity filter 10 can be used to block small debris such as sand and stones in the rainwater, thereby preventing debris from clogging and filling the water tank 7, thereby ensuring the rainwater storage space in the water tank 7. The coordinated use of the external thread 9 and the internal thread 8 can make the water purification tray 11 detachable, so that the debris in the water purification tray 11 can be cleaned, thereby improving the practicality of the device.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the internal parts of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0043] The above are only preferred embodiments of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A rain garden comprising a soil base (1), characterized in that: The soil base layer (1) is provided with a shelf groove inside, a water tank (7) is placed inside the shelf groove, an internal thread (8) is provided at the top of the inner wall of the water tank (7), a water purification tray (11) is provided inside the water tank (7), an external thread (9) is provided on the outer wall of the water purification tray (11), the water purification tray (11) is threadedly connected to the water tank (7), an impurity filter (10) is fixedly connected to the bottom end of the inner wall of the water purification tray (11), a grille cover (5) is inserted at the center of the soil base layer (1), and an adjustment mechanism is provided inside the soil base layer (1).

2. A rain garden according to claim 1, characterized in that: The regulating mechanism comprises water spray heads (3) arranged at the four corners inside the soil base (1); four branch pipes (13) are arranged inside the water storage tank (7); one end of each branch pipe (13) passes through the interior of the soil base (1) and is fixedly connected to the corresponding water spray heads (3); soil moisture sensors (2) are arranged at the four corners outside the soil base (1); electromagnetic valves (15) are fixedly installed inside each branch pipe (13); and a controller (6) is arranged outside the soil base (1).

3. A rain garden according to claim 2, characterized in that: A water supply mechanism is provided inside the water tank (7), and the water supply mechanism includes a water pump (12) fixedly installed inside the water tank (7). The input end of the water pump (12) extends into the interior of the water tank (7), and the output end of the water pump (12) is fixedly connected to a header ball (14). The ends of the branch pipes (13) away from the sprinkler head (3) are fixedly connected to the header ball (14).

4. The rain garden according to claim 1, characterized in that: The interior of the soil base layer (1) comprises, from bottom to top, a water-retaining granular layer (101), a water-seepage layer (102), a water-permeable sand and gravel layer (103), and a planting layer (104). A sloping water trough (4) for facilitating water accumulation is provided at the top of the soil base layer (1) and on the periphery of the grille cover (5).

5. A rain garden according to claim 4, characterized in that: The water seepage layer (102) is arranged on the top of the water storage granular layer (101), the water permeable sand and gravel layer (103) is arranged on the side of the water seepage layer (102) away from the water storage granular layer (101), and the planting layer (104) is arranged on the side of the water permeable sand and gravel layer (103) away from the water seepage layer (102), with the planting layer (104) being at the top.

6. The rain garden according to claim 2, characterized in that: Planting areas are provided at the four corners of the top of the soil base layer (1), the soil moisture sensor (2) is fixedly installed inside the corresponding planting area, and green plants are planted on the top of the soil base layer (1).

7. The rain garden according to claim 1, characterized in that: A pull ring is fixedly connected to the inner wall of the water purification tray (11), a handle is fixedly connected to the top of the grille cover (5), and the grille cover (5) is a transparent glass component.

8. The rain garden according to claim 3, characterized in that: The soil moisture sensor (2), the solenoid valve (15) and the water pump (12) are all electrically connected to the controller (6).

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