Water circulation device for municipal road green plants

Abstract

The utility model relates to a kind of water circulation devices for municipal road greenery, comprising: water-permeable pavement;Water-collecting tank, set in water-permeable pavement below;Water reservoir, for storing water;Drain pipe, for the water collected by water-collecting tank is introduced into water reservoir heavy;Greening passage, one end extends into the bottom of water reservoir, the water of water reservoir is guided out irrigation greening;Road surface passage, one end extends into the bottom of water reservoir, the water of water reservoir is guided out and sprays road;Water pump, set in the one end of greening passage and road surface passage extending into the bottom of water reservoir;Water jet pipe, set in the one end of greening passage and road surface passage principle water reservoir bottom, set along road length direction, water jet pipe is also evenly provided with spray head;Humidity detector, with the water pump electrically connected set on greening passage;PM2.5 concentration detector, detect dust condition on road, with the water pump electrically connected set on road surface passage. It can automatically irrigate greening according to soil humidity and reduce road surface dust.

Description

Technical Field

[0001] This utility model relates to the field of water circulation technology, and more specifically, to a water circulation device for municipal road greenery. Background Technology

[0002] With the accelerating pace of urbanization in my country, the contradiction between the expansion of municipal road networks and the needs of urban ecological construction is becoming increasingly prominent. Roadside green belts play a crucial role in beautifying the environment, purifying the air, and regulating the local microclimate, but their healthy growth depends on a continuous supply of water. Currently, irrigation for municipal green spaces generally relies on traditional sprinkler or timed irrigation systems using tap water as the water source. This model not only consumes a large amount of precious clean water resources, putting pressure on the municipal water supply system, but also often leads to over-irrigation or under-irrigation due to its low level of intelligence and inability to accurately adjust according to actual soil moisture and weather changes, wasting water resources and potentially affecting plant health. Furthermore, during dry and hot periods, road surfaces are prone to dust, and traditional green space irrigation systems cannot simultaneously meet the needs of watering and dust suppression, resulting in a relatively limited function.

[0003] On the other hand, the large areas of impermeable hardened pavement in cities prevent rainwater from infiltrating effectively during rainfall, increasing the burden on urban drainage networks. As a natural water resource, rainwater is not effectively collected and utilized, but is instead wasted.

[0004] To address the aforementioned issues, the industry has undertaken some beneficial explorations, such as using permeable paving materials to promote rainwater infiltration or constructing underground water storage facilities to collect rainwater for non-potable reuse. However, existing technological solutions often suffer from insufficient systemic and intelligent features. Many solutions focus only on a single aspect of rainwater harvesting or water-saving irrigation, failing to construct a complete closed-loop system from collection and storage to precise allocation and utilization. Water resource allocation relies heavily on manual or simple timed control, lacking intelligent decision-making and response capabilities based on real-time information such as soil moisture sensing and road usage conditions, resulting in low water resource utilization efficiency. Furthermore, existing systems typically lack effective water replenishment mechanisms linked to municipal water supply networks when dealing with insufficient collected water, requiring improvements in system reliability and continuity. For complex scenarios such as two-way roads, existing solutions also fail to adequately consider how to achieve balanced and independent control of water supply to facilities on both sides.

[0005] Therefore, there is an urgent need in this field for a highly efficient and intelligent water recycling device that can deeply integrate multiple functions such as rainwater harvesting, storage, precision irrigation, and intelligent road dust suppression. This device should be able to fully utilize natural rainfall, maximize the conservation of municipal water, and automatically and precisely operate based on the water requirements of plants and the real-time road environment. This would construct a resource-saving, environmentally friendly, and reliable modern municipal road ecological maintenance system, systematically addressing the multiple contradictions currently facing cities, including water waste, flooding risks, green space maintenance costs, and road environment management.

[0006] A municipal greening water circulation system, disclosed in Chinese Utility Model Patent Publication No. CN216362964U, includes a water storage tank; a water collection trough located at the top of the water storage tank; a connecting pipe located at the top of the water collection trough and connected to it; a filter screen located on the bottom inner wall of the water collection trough; a cover plate located on the water collection trough, with multiple holes; a water injection mechanism located on one side of the water storage tank; and a circulation collection mechanism located on one side of the water collection trough. It has the ability to adjust the spray height and has rainwater collection and filtration functions, but it does not achieve road dust suppression or irrigation control based on soil moisture. Utility Model Content

[0007] The main purpose of this invention is to propose a water recycling device for municipal road greening, which can intelligently irrigate greening and reduce road dust by recycling rainwater.

[0008] To address the aforementioned technical problems, this utility model proposes a water circulation device for municipal road greenery, characterized by comprising: a rainwater collection device for collecting rainwater; a water storage tank for storing water; a greening channel, one end of which extends into the bottom of the water storage tank to drain water from the tank for irrigating the greenery; a road surface channel, one end of which extends into the bottom of the water storage tank to drain water from the tank for spraying the road; a water pump located at the end of the greening channel and the road surface channel extending into the bottom of the water storage tank; a water spray pipe located at the end of the greening channel and the road surface channel extending into the bottom of the water storage tank, arranged along the length of the road, with nozzles evenly distributed on the water spray pipe; a humidity detector located in the soil of the green belt, electrically connected to the water pump located on the greening channel; and a PM2.5 dust detector located on the hard shoulder to detect dust on the road, electrically connected to the water pump located on the road surface channel.

[0009] In the above technical solution, the rainwater collection device further includes: a permeable pavement; a water collection trough, which is disposed below the permeable pavement to collect water seeping down from the permeable pavement and has a filter layer therein; and a drain pipe for guiding the water collected in the water collection trough into a water storage tank.

[0010] In any of the above technical solutions, the inner diameter of the nozzle further narrows from both ends to the middle.

[0011] In any of the above technical solutions, it further includes: a water supply pipe, one end of which is connected to a water storage tank and the other end of which is connected to the municipal water supply.

[0012] In any of the above technical solutions, a water supply valve is further provided on the water supply pipe.

[0013] In any of the above technical solutions, a water level detector is further provided in the water storage tank and is electrically connected to the water supply valve.

[0014] In any of the above technical solutions, furthermore, water storage tanks are installed under both road surfaces, and a connecting passage is provided between the two water storage tanks.

[0015] In any of the above technical solutions, furthermore, water spray pipes, greening channels, and road channels are installed on both sides of the green belt near the two-way road surface.

[0016] In any of the above technical solutions, furthermore, the water spray pipes, greening channels, and road channels near the two-way road surface of the green belt correspond to two water storage tanks respectively.

[0017] Beneficial effects: Compared with existing technologies, it can automatically irrigate greenery based on soil moisture and automatically spray to reduce road dust based on road dust conditions. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partially enlarged structural schematic diagram of the present invention; Figure 3 This is a perspective structural diagram of the water pipe and nozzle of this utility model.

[0020] The annotations in the attached figures are explained as follows: 1. Rainwater harvesting device; 11. Permeable pavement; 12. Water collection trough; 121. Filter layer; 13. Drainage pipe; 2. Water storage tank; 21. Water supply pipe; 22. Water supply valve; 23. Water level detector; 24. Connecting passage; 3. Green passage; 4. Road passage; 5. Water pump; 6. Sprinkler pipe; 61. Sprinkler head; 7. Humidity detector; 8. PM2.5 dust detector Detailed Implementation

[0021] Hereinafter, exemplary embodiments according to this application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely a part of the embodiments of this application, and not all of the embodiments of this application. It should be understood that this application is not limited to the exemplary embodiments described herein. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0022] It should be noted that, as shown in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, and these steps and elements do not constitute an exclusive list; the method or apparatus may also include other steps or elements.

[0023] If the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0026] This utility model proposes a water circulation device for municipal road greening.

[0027] The following embodiments will provide a detailed description of the water circulation device for municipal road greenery of this application.

[0028] Example 1: like Figure 1 As shown, this embodiment proposes a water circulation device for municipal road greenery, characterized by comprising: a rainwater collection device 1 for collecting rainwater; a water storage tank 2 for storing water; a greening channel 3, one end of which extends into the bottom of the water storage tank 2 to drain water from the water storage tank 2 for irrigating the greenery; a road surface channel 4, one end of which extends into the bottom of the water storage tank 2 to drain water from the water storage tank 2 for spraying the road; a water pump 5, located at one end of the greening channel 3 and the road surface channel 4 extending into the bottom of the water storage tank 2; a water spray pipe 6, located at one end of the greening channel 3 and the road surface channel 4 extending into the bottom of the water storage tank 2, arranged along the length of the road, and the water spray pipe 6 is also evenly provided with nozzles 61; a humidity detector 7, located in the soil of the green belt, electrically connected to the water pump 5 located on the greening channel 3; and a PM2.5 dust detector, located on the hard shoulder, for detecting dust on the road, electrically connected to the water pump 5 located on the road surface channel 4.

[0029] Rainwater collection device 1 collects and filters the rainwater in its section of road and finally introduces it into reservoir 2. While recycling natural rainwater to reduce the pressure on municipal water supply, it effectively alleviates the problem of road water accumulation. Reservoir 2 is built in the underground space under the road and is made of reinforced concrete. Its compressive strength can withstand the road's demand for vehicle traffic. Its volume is designed according to the local rainfall and green area. Both the greenway 3 and the road surface 4 draw water from the water storage tank 2 via a water pump 5 installed at one end of the tank, and then send the water into the sprinkler pipe 6. The sprinkler pipe 6 is installed along the length of the road in the green belt and along the edge of the green belt, respectively. The sprinkler heads 61, which are evenly arranged along the length of the pipe, face the green belt and the road. The humidity detector 7 is buried in the soil of the green belt and is electrically connected to the water pump 5 on the greenway 3. If the soil humidity is lower than the preset value, the water pump 5 is activated to irrigate the green belt. The PM2.5 dust detector is installed on the hard shoulder and continuously monitors the PM2.5 concentration in the air at the roadside. When it exceeds the preset value, the water pump 5 is activated to spray water into the air above the road to reduce dust. At the same time, some of the water sprayed on the road evaporates and carries away heat to cool the road surface, while the other part is recovered through the rainwater collection device 1.

[0030] Example 2: This embodiment is a further improvement based on Embodiment 1.

[0031] like Figure 1 As shown, in this embodiment, the rainwater collection device 1 includes: a permeable pavement 11; a water collection trough 12, which is disposed below the permeable pavement 11 to collect water seeping down from the permeable pavement 11 and has a filter layer 121 disposed therein; and a drain pipe 13, which is used to guide the water collected by the water collection trough 12 into the water storage tank 2.

[0032] The permeable pavement 11 is constructed with porous asphalt as the road surface. A water collection trough 12, securely installed in the subgrade beneath the permeable pavement 11, efficiently collects rainwater infiltrating from it. The trough 12 contains a multi-layered filter layer 121 composed of coarse sand, gravel, and non-woven geotextile to effectively purify the collected rainwater and prevent clogging. A drain pipe 13, made of PVC, is connected at a slope to the outlet of the water collection trough 12 to reliably guide the filtered rainwater into an underground storage tank 2. This system achieves natural infiltration, effective collection, and preliminary purification of rainwater, providing a stable water source for road spraying and greening irrigation, and reducing pressure on the municipal water supply network.

[0033] Example 3: This embodiment is a further improvement based on any of the above embodiments.

[0034] like Figure 2 , 3As shown, in this embodiment, the inner diameter of the nozzle 61 tapers from both ends towards the middle. This nozzle 61 has an atomizing effect. During operation, high-pressure liquid is delivered into the nozzle 61. When the fluid passes through a special short inner diameter channel, the cross-sectional area of ​​the flow channel contracts sharply. According to Bernoulli's principle, the pressure potential energy of the liquid is converted into extremely high kinetic energy at this point, forming a high-speed jet. When this jet enters still air, the velocity difference between the jet and the surrounding air generates shear force and frictional resistance. The continuous liquid column "necks" and breaks at its weakest point, initially decomposing into liquid filaments and larger droplets. Further stretching and twisting under air resistance, it eventually contracts and breaks into a large number of small droplets under surface tension, thus forming a mist. The mist spray has a larger coverage area, conserves water resources, is less likely to cause soil erosion and loss in green belts, and also makes irrigation more uniform.

[0035] Example 4: This embodiment is a further improvement based on any of the above embodiments.

[0036] like Figure 1 As shown, in this embodiment, it also includes: a water supply pipe 21, one end of which is connected to the water storage tank 2 and the other end is connected to the municipal water supply. A water supply valve 22 is installed on the water supply pipe 21, and a water level detector 23 is installed in the water storage tank 2, which is electrically connected to the water supply valve 22.

[0037] Considering insufficient rainfall, an additional water supply pipe 21 is installed, with one end connected to the side wall of the reservoir 2 and the other end connected to the municipal water supply network as a supplementary water source. An electrically controlled water supply valve 22 is installed on this water supply pipe 21. A water level detector 23, a float-type liquid level sensor, is installed inside the reservoir 2, with its installation position corresponding to the minimum allowable water level and the maximum warning water level of the reservoir 2. This water level detector 23 is electrically connected to the water supply valve 22 on the water supply pipe 21. When there is no rain for an extended period or when water consumption is high, causing the water level in the reservoir 2 to drop to the preset minimum water level, the water level detector 23 will send an open signal, instructing the water supply valve 22 to open and introduce municipal water to replenish the reservoir 2. When the water level rises back to the set maximum water level, the water level detector 23 will send a close signal, and the water supply valve 22 will then close, stopping the water supply. This mechanism ensures that the reservoir 2 always has enough water to meet the needs of road spraying and greening irrigation, and at the same time, it can give priority to the use of collected rainwater during periods of abundant rainfall, effectively saving precious municipal drinking water resources.

[0038] Example 5: This embodiment is a further improvement based on any of the above embodiments.

[0039] like Figure 1As shown, in this embodiment, water storage tanks 2 are installed under both sides of the road surface, and a connecting channel 24 is provided between the two water storage tanks 2. Water spray pipes 6, green channels 3 and road channels 4 are provided on both sides of the green belt near the two sides of the road surface. The water spray pipes 6, green channels 3 and road channels 4 on both sides of the green belt near the two sides of the road surface correspond to the two water storage tanks 2 respectively.

[0040] Two symmetrical water storage tanks 2 are constructed in the roadbed beneath the two-way traffic lanes to collect and store rainwater from the corresponding side of the road surface. To balance the water levels in the two tanks 2 and improve system reliability, a connecting pipe is pre-buried at an appropriate height between the two tanks, allowing them to adjust water volume accordingly. Corresponding to this symmetrical structure, independent water spray pipes 6 are installed on both sides of the green belt located in the center of the two-way road. Each water spray pipe 6 is connected to its corresponding water storage tank 2 via a green channel 3 or a road surface channel 4. Each channel is equipped with an independent water pump 5 at the end extending into the bottom of its corresponding water storage tank 2, thereby drawing water from its respective water storage tank 2. This allows the greening irrigation and road spraying operations of the two-way road to be carried out independently without interference, forming two subsystems that can work collaboratively or operate independently. This improves the uniformity and redundancy of the irrigation coverage of the water circulation device, ensuring the continuity of green plant maintenance and the effectiveness of road dust suppression.

[0041] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A water circulation device for municipal roadside greenery, characterized in that, include: Rainwater harvesting device (1), used to collect rainwater; Water storage tank (2), used for water storage; The greening channel (3) extends into the bottom of the water storage tank (2) at one end, and drains the water from the water storage tank (2) to irrigate the greening. The road passage (4) extends into the bottom of the water storage tank (2) at one end, and directs the water from the water storage tank (2) to spray the road. A water pump (5) is installed at one end of the green passage (3) and the road passage (4) that extends into the bottom of the water storage tank (2); A water spray pipe (6) is set at one end of the bottom of the water storage tank (2) between the green passage (3) and the road passage (4) and along the length of the road. Spray nozzles (61) are also evenly arranged on the water spray pipe (6). A humidity detector (7) is installed in the soil of the green belt and is electrically connected to the water pump (5) installed on the green channel (3); The PM2.5 dust detector is installed on the hard shoulder to detect dust on the road and is electrically connected to the water pump (5) installed on the road surface passage (4).

2. The water circulation device for municipal roadside greenery according to claim 1, characterized in that, The rainwater collection device (1) includes: Permeable pavement (11); A water collection trough (12) is provided below the permeable pavement (11) to collect water seeping down from the permeable pavement (11), and a filter layer (121) is provided inside it. The drain pipe (13) is used to guide the water collected in the water collection tank (12) into the water storage tank (2).

3. The water circulation device for municipal roadside greenery according to claim 1, characterized in that, The inner diameter of the nozzle (61) narrows from both ends toward the middle.

4. The water circulation device for municipal roadside greenery according to claim 1, characterized in that, Also includes: The water supply pipe (21) is connected at one end to the water storage tank (2) and at the other end to the municipal water supply.

5. The water circulation device for municipal roadside greenery according to claim 4, characterized in that, A water supply valve (22) is installed on the water supply pipe (21).

6. The water circulation device for municipal roadside greenery according to claim 5, characterized in that, The water storage tank (2) is equipped with a water level detector (23), which is electrically connected to the water supply valve (22).

7. The water circulation device for municipal roadside greenery according to claim 1, characterized in that, The water storage tanks (2) are installed under both sides of the road, and a connecting channel (24) is provided between the two water storage tanks (2).

8. The water circulation device for municipal roadside greenery according to claim 7, characterized in that, The green belt is equipped with water spray pipes (6), greening channels (3) and road channels (4) on both sides of the road surface.

9. The water circulation device for municipal roadside greenery according to claim 8, characterized in that, The water spray pipes (6), the greening passage (3), and the road passage (4) located near the two sides of the road surface in the green belt correspond to the two water storage tanks (2) respectively.

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