A bridge shadow green plant light and water supplementing device
By integrating water collection pipes, filter layers, water storage tanks, supplementary lighting systems, and control systems into the Qiaoyin Green Space, rainwater collection, purification, and utilization, as well as supplementary lighting and water for plants, have been achieved. This has solved the problems of insufficient light and water in the Qiaoyin Green Space, and improved the landscape effect and resource utilization rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN WENKE LANDSCAPE CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-06-16
Smart Images

Figure CN224356796U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of environmental improvement technology for green spaces under bridges, and in particular to a device for supplementing light and water for plants in green spaces under bridges. Background Technology
[0002] Overpasses and viaducts are inevitable products of modern cities in solving congestion within limited road space. While bringing smoother urban traffic, they also generate negative impacts on the environment, economy, and landscape, creating certain negative spaces under the bridges. Green spaces under bridges are one of the effective ways to alleviate this contradiction. However, problems such as insufficient sunlight, lack of rainfall, and traffic pollution caused by bridge cover adversely affect their landscape utilization. The normal growth of plants under bridges is affected by factors such as insufficient sunlight, lack of rainfall, soil compaction, vehicle exhaust, and noise, resulting in poor landscape effects under extensive management.
[0003] Currently, rainwater from elevated bridges is typically drained in two ways: either by collecting it through a drainage pipe and then discharging it into municipal pipelines, or by discharging it directly into the green space under the bridge through a drainage pipe. The first method increases the pressure on the municipal pipeline network and neglects the effective utilization of rainwater resources. The second method has some benefits for replenishing the green space under the bridge, but discharging it directly into the green space without treatment causes pollutants from the rainwater to accumulate in the green space. The soil around the drainage outlet may also be eroded by excessive rainwater, forming puddles, which is not conducive to the normal growth of plants.
[0004] Currently, many planting devices have been developed to improve the greening of elevated bridges, but these mainly focus on rainwater harvesting and irrigation, bridge deck greening, and bridge pier column greening. There is a lack of integrated devices that address the insufficient light and water in shaded areas under bridges. Therefore, we propose a device for supplementing light and water for plants in shaded areas under bridges. Utility Model Content
[0005] To overcome the shortcomings of the existing technology, this utility model provides a water and light supplementation device for bridge shade plants in the construction of green spaces under bridges such as viaducts and overpasses. It can collect, purify and utilize rainwater and supplement light for plants, while also having a landscape effect. It effectively solves problems such as rainwater runoff collection, purification and utilization on bridge surfaces, inconvenience in the management of bridge shade green spaces, and improvement of the light environment of bridge shade green spaces. It is suitable for the landscape design and construction of viaducts and the construction of sponge cities.
[0006] This utility model is achieved through the following technical solution:
[0007] A device for supplementing light and water in a bridge-shaded green space includes a bridge pier, a water collection pipe, a hardened area, a filter layer, an overflow pipe, a water storage tank, a supplemental lighting system, a control system, and the bridge-shaded green space. The water collection pipe, fixed to the bridge pier, collects rainwater, which flows through a rain grate into the filter layer. After the filter layer purifies the rainwater, it flows into the water storage tank through the overflow pipe. Rainwater exceeding the water storage tank flows into the bridge-shaded green space through the overflow pipe and the permeable area. The water storage tank is equipped with a water pump connected to a sprinkler head to irrigate the bridge-shaded green space. The supplemental lighting system and the sprinkler head are staggered. The circuits of both the sprinkler system and the supplemental lighting system are connected to the control system on the bridge pier for unified control.
[0008] Furthermore, the bridge piers and water collection pipes are all municipal viaduct facilities and will not be modified. The hardened area is set away from the foundation of the bridge piers and is located in the suitable vegetation area near the water collection pipes of the bridge piers.
[0009] Furthermore, the main frame material of the hardened area is one of plastic, concrete or stainless steel, and the size and depth are set according to actual needs. The hardened area includes a filter layer and a water storage tank, which are arranged adjacent to each other. A rain grate is provided above the filter layer and is located below the water collection pipe. Rainwater flows from the water collection pipe through the rain grate into the filter layer, is purified by the filter layer filler, and then flows into the water storage tank through the overflow pipe.
[0010] Furthermore, the filter layer packing consists of coarse particles, medium particles, and fine particles from top to bottom. The coarse particles have a particle size of 11–15 mm, the medium particles have a particle size of 6–10 mm, and the fine particles have a particle size of 1–5 mm. The ratio of the coarse particles, medium particles, and fine particles is 1:2:2.
[0011] Furthermore, the water storage tank is connected via an overflow pipe at the bottom of the filter layer. A water pump is installed inside the water storage tank, and the outlet of the water pump is connected to multiple sprinkler heads via a water pipe. The sprinkler heads are located in the dry area in the middle of the bridge shade green space, and the installation spacing of the sprinkler heads is at least 3m. A permeable area is provided on the upper part of the water storage tank. The permeable area is a permeable pavement and is located on one or more sides connected to the bridge shade green space. The height of the permeable area is less than 1 / 4 of the water storage tank. An overflow pipe is provided in the permeable area of the water storage tank to drain excess rainwater into the bridge shade green space.
[0012] Furthermore, the supplemental lighting system is installed in the shady area along the central line of the bridge shaded green space. The supplemental lighting system includes a support rod, a rotating shaft, and plant supplemental lights. The support rod has a rotating shaft structure at the bend to adjust the direction. The height of the support rod is telescopic and adjustable. The height of the support rod is 1 to 2 meters. The plant supplemental lights are long tubes with a vertical downward lighting direction. The installation spacing of the plant supplemental lights is 2 to 3 meters.
[0013] Furthermore, the supplemental lighting system is staggered from the sprinkler head to avoid interference. The circuits of the supplemental lighting system and the water pump are both connected to the control system. The control system is fixed on the bridge pier at a height of 1.5 to 2 meters. The control system can be set to timed watering and supplemental lighting to control the timing of supplemental lighting and watering for plants.
[0014] Furthermore, the plant configuration of the bridge shade green space is a tree-shrub-grass, shrub-grass, or herbaceous structure.
[0015] Compared with existing technologies, the lighting and watering device for trees in shaded green spaces described in this utility model has the following advantages:
[0016] (1) This utility model has a strong overall appearance. Rainwater from the road surface is discharged into the filter layer through the water collection pipe and rain grate. After being rapidly purified by layers of coarse, medium and fine particle fillers, it flows into the water storage tank for collection. The upper layer of filler has good permeability and high collection efficiency, and the fine particle filler can effectively remove rainwater pollutants. In addition, permeable bricks and overflow pipes are set around the upper layer of the water storage tank. The purified rainwater exceeding the capacity of the water storage tank can be directly infiltrated into the bridge shade green space through the overflow pipe and permeable bricks, which will not cause waterlogging. It can be directly irrigated to the bridge shade green space, thus improving the resource utilization rate.
[0017] (2) The water pump outlet pipe in the water storage tank of this utility model is connected to multiple sprinkler heads, which can be controlled by the control system to irrigate the central dry area of the bridge shade greening, effectively utilizing rainwater; the supplementary lighting system has multiple plant supplementary lights, the lighting direction of the supplementary lights is vertically downward, maximizing the use of lighting, and the side will not affect the traffic line of sight; the direction and height of the supplementary lighting system support rod are adjustable, and can be changed accordingly with the growth height of the bridge shade plants, which is simple and flexible.
[0018] (3) The supplementary lighting system and sprinkler head of this utility model are set alternately to avoid mutual shading and interference; the circuits of the supplementary lighting system and the water pump are controlled by the control system installed on the bridge pier. The supplementary lighting duration and watering time can be adjusted in a timely manner through system regulation, reducing manpower consumption, effectively improving the light and water conditions of the shaded environment in the central area of the bridge shaded green space, promoting plant growth and improving landscape quality. Attached Figure Description
[0019] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0020] Figure 1 This is a schematic diagram of the elevation structure of the utility model;
[0021] Figure 2 This is a top view schematic diagram of the utility model.
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Bridge pier; 2. Water collection pipe; 3. Hardened area; 4. Filter layer; 41. Rain grate; 42. Coarse particle packing; 43. Medium particle packing; 44. Fine particle packing; 5. Overflow pipe; 6. Water storage tank; 61. Submersible pump; 62. Outlet pipe; 63. Sprinkler head; 64. Permeable area; 65. Permeable brick; 7. Supplemental lighting system; 71. Support rod; 72. Rotating shaft; 73. Plant supplemental lighting; 8. Control system; 9. Shaded green space Detailed Implementation
[0024] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0028] like Figure 1As shown, a bridge shade green space plant supplementary lighting and watering device includes a bridge pier 1, a water collection pipe 2, a hardened area 3, a filter layer 4, an overflow pipe 5, a water storage tank 6, a supplementary lighting system 7, a control system 8, and a bridge shade green space 9. The hardened area 3 is set up near the water collection pipe 2 of the elevated bridge. Rainwater is collected through the water collection pipe 2 of the bridge pier 1 and enters the filter layer 4 through a rain grate 41. The filter layer 4 is equipped with three different particle sizes of fillers from top to bottom: coarse particle filler 42, medium particle filler 43, and fine particle filler 44. After being purified layer by layer by the fillers, the rainwater flows into the water storage tank 6 through the overflow pipe 5. Rainwater exceeding the water storage tank 6... The water flows into or seeps into the bridge shade green space 9 through the overflow pipe 5 and the permeable area 64. The water storage tank 6 is equipped with a water pump 61 connected to the sprinkler head 63 to irrigate the bridge shade green space 9. The supplemental lighting system 7 includes a support rod 71, a rotating shaft 72 and a plant supplemental light 73. The support rod 71 has a rotating shaft 72 structure at the bend to adjust the direction. The height of the support rod 71 is telescopic and adjustable. The plant supplemental light 73 illuminates vertically downwards. The water pump 61 and the circuit of the supplemental lighting system 7 are both connected to the control system 8 on the bridge pier 1 for unified control. The plant configuration of the bridge shade green space 9 is a tree-shrub-grass, shrub-grass or herbaceous structure.
[0029] like Figure 2 As shown, both the bridge pier 1 and the water collection pipe 2 are municipal viaduct facilities. The size and depth of the hardened area 3 are set according to actual needs. The location is set in the suitable plant growth area near the water collection pipe 2 of the bridge pier 1, avoiding the foundation of the bridge pier 1. The hardened area 3 includes a filter layer 4 and a water storage tank 6. The filter layer 4 and the water storage tank 6 are set adjacent to each other. A rain grate 41 is set above the filter layer 4. The rain grate 41 is located directly below the water collection pipe 2. Rainwater flows from the water collection pipe 2 into the filter layer 4 through the rain grate 41. The supplementary lighting system 7 and the sprinkler head 63 are staggered and placed in the dry and dark area along the middle of the bridge shade greening 9.
[0030] Example 1
[0031] Three supplemental lighting and watering devices for the shaded green areas were designed and constructed within the area of three piers of an elevated bridge in South China. One device was installed at the bottom of each pier. The elevated bridge is a two-way six-lane road with a clearance height of 6.5m and a deck width of 22.5m. The shaded green areas consist of trees, shrubs, and grasses, with main plant species including frangipani, schefflera, spider orchid, crape myrtle, and liriope. The spacing between each pier is 25m. A paved area 3 is set up with a length of 2m, a width of 1m, a depth of 2.5m, and a volume of 5m³. 3 The filter layer 4 is 0.5m long, 1m wide, and 2.5m deep, with a volume of 1.25m³. 3 The water storage tank is 1.5m long, 1m wide, and 2.5m deep, with a volume of 3.75m³. 3A stainless steel rain grate 41, measuring 300*200mm, is installed above the filter layer 4. Fine particle packing 44, medium particle packing 43, and coarse particle packing 42 are then added to the filter layer from bottom to top, with a ratio of 1:2:2. The fine particle packing 44 is river sand with a particle size of 3-4mm and a filling thickness of 1m; the medium particle packing 43 is zeolite + volcanic rock with a particle size of 5-8mm and a filling thickness of 1m; and the coarse particle packing 42 is ceramsite with a particle size of 12mm and a filling thickness of 0.5m. An overflow pipe 5 with a diameter of 2.5cm is installed on the partition of the filter layer 4.
[0032] The permeable area 64, which connects the upper part of the water storage tank 6 to the bridge shade green space 9, has three sides and is 0.3m wide. The hardened area 3 is constructed by welding multiple stainless steel plates. The cover of the hardened area 3 can be opened for easy maintenance. The overflow pipe 5, the permeable area 64, and the outlet pipe 62 of the water pump 61 are reserved. The overflow pipe 5 is installed on one side of the permeable area 64 at the top of the water storage tank 6. The permeable area 64 is made of multiple permeable bricks. A submersible pump 61 is installed inside the water storage tank 6. The outlet pipe 62 passes through the permeable area 64 and connects to multiple pipelines in different directions. A sprinkler head 63 is installed at the top. A sprinkler head 63 is installed every 4m along the pipeline. There are 5 sprinkler heads 63 for each bridge pier 1, and a total of 15 sprinkler heads 63 are installed for the three bridge piers 1.
[0033] An electrical circuit is introduced from the elevated bridge surface, and a supplementary lighting system 7 is installed along the central area of the bridge shaded green space 9. The support rod 71 of the supplementary lighting system 7 is fixedly inserted into the bridge shaded green space 9. The supplementary lighting system 7 includes the support rod 71, a rotating shaft 72, and plant supplementary lights 73. The rotating shaft 72 structure at the bend of the support rod 71 allows for 360-degree rotation, and the height of the support rod 71 is adjustable, with a maximum height of 2 meters. The plant supplementary lights 73 are installed in the lamp clips of the support rod 71. The plant supplementary lights 73 are full-spectrum strip lamps with double-row wicks, designed according to the bridge shaded green space... The specific plant configuration is adjusted so that the pivot 72 of the support rod 71 is rotated to a suitable direction and the height of the support rod 71 is set at 1.5m. Then, the fixed control system 8 is installed at a height of 1.8m on the pier 1. The circuit of the water pump 61 and the supplementary lighting system 7 is connected to the control system 8. The control system 8 is set to turn on the sprinkler head 63 to water for 2 minutes every 7 days at 17:00. The initial setting is to turn on the plant supplementary lighting 73 for 4 hours every day from 6:00 to 8:00 in the morning and from 16:00 to 18:00 in the afternoon, and to make appropriate adjustments according to seasonal changes and weather conditions.
[0034] The above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A device for supplementing light and water to plants in shaded green areas near bridges, characterized in that: The system includes a bridge pier (1), a water collection pipe (2), a hardened area (3), a filter layer (4), an overflow pipe (5), a water storage tank (6), a supplementary lighting system (7), a control system (8), and a green area under the bridge shade (9). The water collection pipe (2) fixed on the bridge pier (1) collects rainwater and enters the filter layer (4) through a rain grate (41). After the filter layer (4) purifies the rainwater, it flows into the water storage tank (6) through the overflow pipe (5). Rainwater exceeding the water storage tank (6) flows into the green area under the bridge shade (9) through the overflow pipe (5) and the permeable area (64). The water storage tank (6) is equipped with a water pump (61) connected to a sprinkler head (63) to irrigate the green area under the bridge shade (9). The supplementary lighting system (7) is set separately from the sprinkler head (63). The circuits of the water pump (61) and the supplementary lighting system (7) are all connected to the control system (8) on the bridge pier (1) for unified control.
2. The light and water supplementation device for bridge shade green spaces according to claim 1, characterized in that: The bridge pier (1) and the water collection pipe (2) are both municipal viaduct facilities and will not be modified. The hardened area (3) is set away from the foundation of the bridge pier (1) and is located in the suitable area for plant growth near the water collection pipe (2) of the bridge pier (1).
3. The light and water supplementation device for bridge shade green spaces according to claim 1, characterized in that: The main frame material of the hardened area (3) is one of plastic, concrete or stainless steel. The hardened area (3) includes a filter layer (4) and a water storage tank (6). The filter layer (4) and the water storage tank (6) are arranged adjacent to each other. A rain grate (41) is provided above the filter layer (4). The rain grate (41) is located below the water collection pipe (2). Rainwater flows from the water collection pipe (2) through the rain grate (41) into the filter layer (4). After being purified by the filter packing, the filter layer (4) flows into the water storage tank (6) through the overflow pipe (5).
4. The light and water supplementation device for bridge shade green spaces according to claim 1, characterized in that: The filter layer (4) is composed of coarse particle packing (42), medium particle packing (43), and fine particle packing (44) from top to bottom. The coarse particle packing (42) has a particle size of 11-15 mm, the medium particle packing (43) has a particle size of 6-10 mm, and the fine particle packing (44) has a particle size of 1-5 mm. The ratio of coarse particle packing (42), medium particle packing (43), and fine particle packing (44) is 1:2:
2.
5. A device for supplementing light and water to plants in shaded green areas under bridges according to claim 1, characterized in that: The water storage tank (6) is connected through an overflow pipe (5) at the bottom of the filter layer (4). A water pump (61) is installed inside the water storage tank (6). The outlet of the water pump (61) is connected to multiple sprinkler heads (63) through an outlet pipe (62). The sprinkler heads (63) are set in the dry area in the middle of the bridge shade green space (9). The installation spacing of the sprinkler heads (63) is at least 3m. A permeable area (64) is provided on the upper part of the water storage tank (6). The permeable area (64) is a permeable pavement and is set on one or more sides connected to the bridge shade green space (9). The height of the permeable area (64) is less than 1 / 4 of the water storage tank. The permeable area (64) of the water storage tank (6) is provided with an overflow pipe (5) to discharge the rainwater exceeding the water storage tank (6) into the bridge shade green space (9).
6. The light and water supplementation device for bridge shade green spaces according to claim 1, characterized in that: The supplementary lighting system (7) is set in the central dark area of the bridge shade green space (9). The supplementary lighting system (7) includes a support rod (71), a rotating shaft (72) and plant supplementary lights (73). The support rod (71) has a rotating shaft (72) structure at the turning point to adjust the direction. The height of the support rod (71) is adjustable. The height of the support rod (71) is 1 to 2 m. The plant supplementary lights (73) are long tubes with a vertical downward lighting direction. The spacing between the plant supplementary lights (73) is 2 to 3 m.
7. The light and water supplementation device for bridge shade green spaces according to claim 1, characterized in that: The supplemental lighting system (7) and the sprinkler head (63) are staggered to avoid interference. The circuits of the supplemental lighting system (7) and the water pump (61) are both connected to the control system (8). The control system (8) is fixed on the bridge pier (1) at a height of 1.5 to 2m. The control system (8) can set timed watering and supplemental lighting to control the time of supplemental lighting and watering for plants.
8. A device for supplementing light and water to plants in shaded green spaces under bridges according to claim 1, characterized in that: The green space under the bridge (9) is planted with trees, shrubs and grasses, shrubs and grasses or herbaceous structures.