Sponge city water guide drip irrigation system and method

Abstract

The application belongs to the technical field of sponge city road drip irrigation, and particularly relates to a sponge city water guide drip irrigation system and method. The system is externally connected with an upper water source, and comprises a plurality of slow-release modules, a water guide rope body and a rope body fixer. The slow-release modules are arranged at intervals of at least 5 m, and the inside of each slow-release module is a water storage cavity, which can store water. The rope body fixer comprises a radial ring, a connecting rod and a rope body fixing buckle. The connecting rod is connected with the slow-release module, the water guide rope body is wound on the radial ring through the connecting rod and the rope body fixing buckle, and the water is precisely drip irrigated at the position of the radial ring. The slow-release module is used for water storage, the water guide rope body prearranged in the slow-release module guides water to the outside through capillary effect, water is transported to the outside soil through the difference between the internal and external water pressures, and the radial ring position is controlled for precise drip irrigation by changing the rod direction, angle and adding connecting rods of each connecting rod, so as to increase the rainwater utilization efficiency, reduce energy consumption and meet the requirements of the current sponge city road.

Description

Technical Field

[0001] This invention belongs to the field of sponge city road drip irrigation technology, specifically relating to a sponge city water-guiding drip irrigation system and method. Background Technology

[0002] Since its introduction in 2014, the concept of sponge city rainwater management has been piloted in several cities, including Beijing, Shenzhen, and Qingdao, achieving significant results. Flooding in the areas where sponge cities have been built has been significantly alleviated compared to the past, truly realizing the construction objectives of sponge cities: infiltration, retention, storage, purification, utilization, and drainage. In the process of sponge city construction, roads, as the main locations for receiving runoff from surrounding areas, play a crucial role in municipal drainage renovation and sponge city design. Traditional sponge city road renovation mainly relies on sponge city road rainwater collection and comprehensive utilization systems and the highly permeable surface of the sponge city measures to quickly absorb rainwater. Excess rainwater is then discharged through municipal drainage pipes, and some of the collected rainwater is stored in water storage modules for use in drip irrigation of green plants or road cleaning.

[0003] However, the main function of the existing water storage modules is to store rainwater. The utilization rate of rainwater in the modules is low. When drip irrigation is used for green plants, water needs to be drawn before spraying. Its active seepage capacity relies on the outer permeable concrete. It is difficult to achieve one-way seepage control. Moreover, the pores in the outer permeable concrete are easily blocked, which affects the later use. The labor cost and later maintenance cost are high. Summary of the Invention

[0004] The technical problem this invention aims to solve is to provide a sponge city water-guiding drip irrigation system and method. This system directs rainwater from a slow-release module through a water-guiding rope wound around a rope fixation device for precise drip irrigation. A pre-set strain gauge within the slow-release module monitors the internal rainwater level, and when the level falls below a warning level, an external water source replenishes the rainwater in the slow-release module. Compared to traditional water collection methods, this system can automatically and precisely drip irrigate surrounding vegetation, prevent system blockage, improve rainwater utilization efficiency, and reduce water waste.

[0005] The technical solution adopted is as follows:

[0006] A sponge city water-guiding drip irrigation system is provided, which is connected to an upper water source. The system includes multiple slow-release modules, water-guiding ropes, and rope fixers. Each slow-release module is set at least 5m apart. Each slow-release module has a water storage chamber inside. A connecting pipe is provided at the upper part of the side wall of the slow-release module to connect to the upper water source, municipal drainage pipes, or other slow-release modules. At least one threaded opening is provided on the side wall of each slow-release module above the connecting pipe.

[0007] The rope retainer connects to the release module via a threaded opening. The rope retainer includes a spoke ring, a connecting rod, and a rope retaining buckle. The connecting rod has at least two sections, one section having a connecting part (threaded connection) adapted to the opening, and the other section having a connecting part adapted to the spoke ring, connected to the center fixing part of the spoke ring. The spoke ring includes an annular support, a center fixing part, and several spoke supports, each spoke support connected to the annular support through the center fixing part. The rope retaining buckle is installed on the connecting rod and the spoke supports, and a rope retaining ring is provided on the rope retaining buckle.

[0008] The connecting rod is hollow, and a rope extension opening is provided on the wall of the connecting rod. One end of the water-guiding rope is placed at the bottom of the water storage chamber of the slow-release module, and the other end is inserted into the hollow inner cavity of the connecting rod, and then out from the rope extension opening. The rope is wound around the annular support and spoke support of the spoke ring through the connecting rod, and passes through the rope fixing ring and is fixed by the rope fixing buckle.

[0009] The rope fixing buckle includes a clasp that connects to the connecting rod or spoke support and a rope fixing ring. The clasp is fastened to the connecting rod or spoke support by bolts. The clasp can be square or round, and can be adapted to the installed component.

[0010] Preferably, the inner layer of the sidewalls and bottom of each of the slow-release modules is made of polyethylene (PP) material, and its outer layer is a waterproof concrete wrapping layer, while the top plate is made of permeable concrete. During rain, rainwater can seep into the water storage chamber through the top plate.

[0011] Preferably, the connecting rods are connected in a rotatable manner. This can be achieved using rotatable hinges, as is common in the prior art, allowing each connecting rod to rotate upwards, downwards, or left and right.

[0012] Preferably, the diameter of the rope fixing ring is adapted to the water-guiding rope. Generally, the diameter of the rope fixing ring is slightly larger than that of the water-guiding rope.

[0013] Preferably, each slow-release module has threaded openings on at least two side walls, and each opening is connected to a rope retainer via a connecting rod.

[0014] As a further preferred option, each slow-release module has 6 or more openings, or 10 or more openings, or 20 or more openings. Each opening connects to a rope fixator, and each rope fixator has multiple connecting rods as needed, allowing for precise drip irrigation of a single plant or a small area. The rope fixator is made of PVC (polyvinyl chloride) material, which is lightweight and relatively inexpensive.

[0015] Preferably, the connecting pipe between each of the slow-release modules and the upper water source includes a main pipe and branch pipes, with the branch pipes connecting to each slow-release module. At the connection between the main pipe and the branch pipes, an arc-shaped diverter is horizontally arranged on the main pipe. Each branch pipe is vertically arranged on the main pipe.

[0016] As a further preferred configuration, the diverter is arranged laterally from the main pipe wall toward the center of the branch pipe, with its height gradually decreasing. This is so that the water source above can divert water to each slow-release module.

[0017] Preferably, a sensor for measuring water level is provided at the bottom of the water storage chamber of each of the slow-release modules, and the sensor is connected to the terminal equipment data acquisition instrument or control system.

[0018] As a further preferred setting, the sensor for measuring the water level is a strain gauge or a wireless water level meter, which can be connected to a terminal device or control system via wires or wireless induction. The terminal device or control system sets a lower limit warning value for the water level. When the water level falls below the lower limit, an alarm is triggered, and relevant personnel can activate the water supply from the upper water source.

[0019] As a further preferred configuration, a main solenoid valve is installed on the main pipe connecting the slow-release module and the upper water source. The solenoid valve is controlled by the control system. When the solenoid valve is opened, water from the upper water source can be delivered.

[0020] Preferably, the water-conducting rope is wrapped with a polyvinyl chloride film on the outer layer of the connecting rod section to prevent water loss. The water-conducting rope is a cotton rope with good water absorption and is wrapped with a PVC (polyvinyl chloride) film on the outer layer. The PVC film is torn off inside the water storage cavity to fully absorb water. The outer PVC film is also removed at the winding radial ring so that the absorbed water can be dispersed to the nearby soil layer.

[0021] A sponge city water-guiding drip irrigation method, employing the aforementioned sponge city water-guiding drip irrigation system, specifically includes the following steps:

[0022] (1) Multiple slow-release modules are installed at least 5m apart in the underground soil layer on both sides of the urban road. The slow-release modules are connected to the upper water source through connecting pipes. A sensor for measuring water level is installed at the bottom of the water storage chamber of the slow-release module. The slow-release module is connected to several rope fixers. Each rope fixer is equipped with multiple connecting rods as needed. One end of the water guide rope is placed at the bottom of the water storage chamber, and the other end is wound around the radial ring along the connecting rod. The radial ring is placed in the underground soil layer that needs drip irrigation. The slow-release module is connected to the municipal collection pipe and drainage pipe through connecting pipes.

[0023] (2) During rainfall, rainwater is initially purified through the municipal collection pipe rainwater treatment. The purified rainwater is collected in the slow release module for storage. The water stored in the slow release module is guided outward in one direction through the reserved water guide rope to accurately irrigate the roots of green plants. When there is too much rainfall, it is transported to the drainage pipe through the connecting pipe.

[0024] (3) The terminal equipment acquisition instrument or control system obtains the water level information in the water storage chamber through the water level sensor reserved in the water storage chamber. When the water level reaches below the warning line, the upper water source is turned on to supplement water supply. When the water level reaches the preset maximum water level, the upper water source stops supplying water.

[0025] Compared with the prior art, the advantages of the present invention are:

[0026] The sponge city water-guiding drip irrigation system of the present invention uses a slow-release module to store water and uses water-guiding ropes pre-installed in the slow-release module to guide water to the outside through capillary effect. Water is dripped into the external soil through the pressure difference between the inside and outside. The number of water-guiding ropes required for each soil layer is determined according to the moisture content of the surrounding soil, the number of rope fixers is set, and the position of the radial ring is controlled by changing the direction and angle of each connecting rod and adding connecting rods to achieve precise drip irrigation, thereby increasing rainwater utilization efficiency, with low energy consumption and significant effect.

[0027] The sponge city water-guiding drip irrigation method of the present invention can not only collect rainwater and use it for precise drip irrigation, but also activate the external upper water source to supply water when the water storage of the slow-release module is lower than the warning water level. When there is a lot of rainwater, the excess rainwater can be drained through the municipal drainage pipe, which can meet the requirements of current sponge city roads. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the slow-release module and the rope fixer of the present invention;

[0029] Figure 2 This is a cross-sectional view of the sustained-release module of the present invention;

[0030] Figure 3 This is a structural diagram of the rope fixing device of the present invention;

[0031] Figure 4 This is a structural diagram of the rope fixing buckle installed on the connecting rod according to the present invention;

[0032] Figure 5 This is a schematic diagram of the connecting rod structure of the present invention;

[0033] Figure 6 This is a cross-sectional view of the connecting pipe for the upper water source in this invention;

[0034] Figure 7 This is a simplified structural diagram of the sponge city water-guiding drip irrigation system of the present invention.

[0035] In the diagram, 1-Slow-release module, 1-1. Slow-release module body, 1-2. Opening, 1-3. Connecting pipe for drainage pipe, 1-4. Connecting pipe between slow-release modules, 1-5. Water-conducting rope, 1-6. Wire, 1-61. Wire binding strap, 1-7. Permeable concrete protective layer, 1-8. Water storage chamber, 1-9. Impermeable concrete protective layer; 2-Permeable soil cover; 3-Rope fixing device, 3-1. Connecting rod, 3-11. Connecting socket, 3-12. Connecting pin, 3-2. Circular ring, 3-21. Circular support body. 3-22. Spoke support; 3-23. Center fixing part; 3-4. Connecting thread; 3-5. Fixing bolt; 3-6. Rope fixing buckle on the spoke; 3-7. Rope fixing buckle on the connecting rod; 3-71. Snap ring; 3-72. Rope fixing ring; 3-73. Connecting bolt; 3-8. Rope protrusion; 4-Strain gauge; 5-Terminal strain acquisition instrument; 6-Upper water source; 7-Connecting pipe to upper water source; 7-1. Main pipe; 7-2. Branch pipe; 7-3. Diverter; 8-Wire fixing buckle; 9-L-shaped fixing buckle. Detailed Implementation

[0036] To make the advantages and technical solutions of the present invention clearer and more explicit, the present invention will be described in detail below with reference to specific drawings and embodiments. It should be understood that the drawings are for illustrative purposes only and do not represent the actual size or dimensions of the product; some common knowledge may be omitted from the drawings and embodiments.

[0037] Example 1

[0038] like Figure 1 , Figure 2 As shown, a sponge city water-guiding drip irrigation system is connected to an upper water source 6. The system includes a slow-release module 1, a water-guiding rope 1-5, and a rope fixer 3. The slow-release modules 1 are set at intervals of 10m, and each module has a water storage chamber 1-8 inside. On the upper part of the side wall of each slow-release module 1, there are connecting pipes 7 for connecting to the upper water source, connecting pipes 1-3 for connecting to the drainage pipe, and connecting pipes 1-4 between each slow-release module. On the upper side of each connecting pipe, four threaded openings 1-2 are opened on the side wall of each slow-release module.

[0039] like Figure 3As shown, the rope fixer 3 is an adjustable rope fixer, made entirely of PVC material, and connects to the slow-release module 1 through threaded openings 1-2. The rope fixer 3 includes a radial ring 3-2, a connecting rod 3-1, and a rope fixing buckle. The connecting rod 3-1 has five sections, which together form a bendable connector that can adjust the radial ring 3-2 in different directions, connecting the slow-release module 1 and the radial ring 3-2. One end of the connector, composed of the five connecting rods, has a connecting thread 3-4 that matches the opening, and the other end has a connecting part that matches the radial ring 3-2, connecting to the center fixing part 3-23 of the radial ring 3-2. The spoke ring 3-2 includes an annular support 3-21, a central fixing part 3-23, and several spoke supports 3-22. Each spoke support 3-22 is connected to the annular support 3-21 through the central fixing part 3-23. The rope fixing buckle is installed on the connecting rod 3-1 and the spoke supports 3-22, and a rope fixing ring 3-72 is provided on the rope fixing buckle. The rope fixing buckle includes a retaining ring connected to the connecting rod 3-1 or the spoke supports 3-22 and a rope fixing ring.

[0040] like Figure 4 The diagram shows the rope fixing buckle 3-7 on the connecting rod. The retaining ring 3-71 is square and matches the shape of the connecting rod 3-1. The rope fixing ring 3-72 is located on one side, and its inner diameter is slightly larger than that of the water-guiding rope 1-5. The retaining ring 3-71 is secured to the connecting rod 3-1, and its end is connected and tightened by the connecting bolt 3-71, making it firmly fixed to the connecting rod 3-1. The rope fixing buckle 3-6 on the spokes has a round retaining ring that matches the spoke support 3-22; the rest are the same.

[0041] like Figure 5 As shown, the connecting rod 3-1 is hollow, and a rope extension port 3-8 is provided on the wall of the connecting rod 3-1. The connecting rods 3-1 are rotatably connected by a rotatable hinge point connection in the prior art. One end of the connecting rod 3-1 is provided with a connecting socket, and the other end is provided with a connecting pin. By passing a fixing bolt through the connecting socket and the connecting pin, rotation can be achieved, allowing it to rotate upward, downward, or left and right, making the rope fixer 3 an adjustable component. One end of the water-guiding rope 1-5 is placed at the bottom of the water storage chamber 1-8 of the slow-release module 1, and the other end passes through the hollow inner cavity of the connecting rod 3-1, and then passes out from the rope extension port 3-8. It is wound around the annular support body 3-21 and the spoke support body 3-22 of the spoke ring 3-2 through the connecting rod 3-1, and passes through multiple rope fixing rings 3-72 for fixation.

[0042] The length of the connecting rod 3-1 is set as needed. The end of the connecting rod 3-1, which is connected to the center fixing part 3-23, is adapted to the connection point and can be threaded. The center fixing part 3-23 is provided with a threaded opening, and the connecting rod 3-1 is provided with a matching connecting thread.

[0043] The water-conducting rope 1-5 is made of absorbent cotton material. The portion of the water-conducting rope 1-5 that enters the hollow cavity of the connecting rod 3-1 is wrapped with a layer of polyvinyl chloride (PVC) film to prevent moisture loss. Each water-conducting rope 1-5 consists of four thin ropes wound together. The PVC film is removed from the inner section of the water storage chamber 1-8 to allow for full water absorption. At the spoke ring 3-2, the outer PVC film is also removed, and the four thin ropes are tightly wound around the spoke support 3-22. Upon encountering the rope fixing buckle, the rope passes through the rope fixing ring and then wraps around the annular support 3-21, covering the entire spoke ring 3-2 with the wound water-conducting rope 1-5. This allows the water absorbed by the water-conducting rope to be dispersed into the nearby soil layer, achieving precise drip irrigation.

[0044] The inner layer of the sidewalls and bottom of each of the slow-release modules 1 is made of polyethylene (PP) material, and its outer layer is a waterproof concrete wrapping layer. The top plate is made of permeable concrete. When it rains, rainwater can seep into the water storage chambers 1-8 through the top plate.

[0045] As a further preferred option, each slow-release module 1 can be provided with an opening 1-2 on its side wall as needed. Each opening 1-2 is connected to a rope fixer 3. Each rope fixer 3 is provided with multiple connecting rods 3-1 as needed, so as to precisely drip irrigate a green plant or a small patch of land.

[0046] like Figure 6 As shown, as a further preferred configuration, the connecting pipe between each of the slow-release modules 1 and the upper water source 6 includes a main pipe 7-1 and a branch pipe 7-2. The branch pipe 7-2 connects to each slow-release module 1. Inside the connection between the main pipe 7-1 and the branch pipe 7-2, a horizontally arranged arc-shaped diverter 7-3 is provided. The diverter 7-3 is arranged horizontally from the wall of the main pipe 7-1 towards the center of the branch pipe 7-2, with its height gradually decreasing. This is to allow the upper water source 6 to divert water into each slow-release module 1. Each branch pipe 7-2 is vertically arranged on the main pipe 7-1.

[0047] As a further preferred configuration, strain gauges 4 for measuring water level are installed at the bottom of the water storage chambers 1-8 of each of the slow-release modules 1. The strain gauges are connected to the terminal equipment data acquisition instrument 5. The strain gauges 4 are connected to the terminal equipment data acquisition instrument via wires 1-6, and the terminal equipment data acquisition instrument is connected to the final control system. The wires 1-6 are fixed to the inner wall of the slow-release module 1 by wire fixing buckles 8 and L-shaped fixing buckles 9, and pass through one of the openings. Multiple wires can be bound together by wire binding straps 1-61 and finally connected to the terminal equipment data acquisition instrument. The control system sets a lower limit warning value for the water level. When the monitored water level is lower than the lower limit warning value, an alarm is triggered, and relevant personnel can start the water supply from the upper water source 6. A main solenoid valve is installed on the main pipe 7-1 connecting the slow-release module 1 and the upper water source 6. The solenoid valve is controlled by the control system. When the solenoid valve is opened, water from the upper water source 6 can be supplied.

[0048] like Figure 7 As shown, a sponge city water-guiding drip irrigation method, employing the aforementioned sponge city water-guiding drip irrigation system, specifically includes the following steps:

[0049] (1) In the underground soil layer on both sides of the urban road, a slow-release module 1 is set at 5m intervals. The slow-release module 1 is connected to the upper water source 6. The strain gauge for measuring the water level is installed at the bottom of the water storage chamber 1-8 of the slow-release module 1. The slow-release module 1 is connected to 8 rope fixers 3. Each rope fixer 3 is equipped with multiple connecting rods 3-1 as needed and the direction is adjusted. One end of the water guide rope 1-5 is placed at the bottom of the water storage chamber 1-8, and the other end is wound around the radial ring 3-2 along the connecting rod 3-1. The radial ring 3-2 is placed in the soil layer that needs drip irrigation. The slow-release module 1 is connected to the municipal collection pipe and drainage pipe through the connecting pipe.

[0050] (2) During rainfall, rainwater is initially purified through the municipal collection pipeline rainwater treatment. The purified rainwater is collected in the slow release module 1 for storage. The permeable concrete protective layer 1-7 can also seep into the water storage chamber 1-8. The water stored in the slow release module 1 is guided outward in one direction through the reserved water guide rope to accurately irrigate the roots of green plants. When the rainfall is too heavy and reaches the preset maximum water level, it is transported to the municipal drainage pipeline through the connecting pipe.

[0051] (3) The terminal equipment acquisition instrument 5 obtains the water level information in the water storage chamber 1-8 through the strain gauge 4 reserved in the water storage chamber 1-8. When the water level reaches the value below the warning line, the upper water source 6 is turned on to supplement water supply. When the water level reaches the preset maximum water level, the upper water source 6 stops supplying water.

[0052] Example 2

[0053] A sponge city water-guiding drip irrigation system is provided, which is connected to an upper water source 6. The system includes a slow-release module 1, water-guiding ropes 1-5, and rope fixers 3. The slow-release modules 1 are set at intervals of 10m, and each module has a water storage chamber 1-8 inside. On the upper part of the side wall of each slow-release module 1, there are connecting pipes 7 for connecting to the upper water source, connecting pipes 1-3 for connecting to drainage pipes (pipes installed by the municipal authorities), and connecting pipes 1-4 between each slow-release module. On the upper side of each connecting pipe, the number of water-guiding ropes 1-5 required for each soil layer is determined according to the moisture content of the surrounding soil. Two threaded openings 1-2 are opened on the side wall of each slow-release module. Each slow-release module 1 is equipped with 12 rope fixers 3.

[0054] A water level sensor for measuring water level is installed at the bottom of the water storage chambers 1-8 of each of the slow-release modules 1. The water level sensor is connected to the final control system via wireless signal, eliminating the need for wires. The control system sets a lower limit warning value for the water level. When the monitored water level falls below the lower limit warning value, an alarm is triggered, and relevant personnel can then activate the upper water source 6 to supply water. A main solenoid valve is installed on the main pipe 7-1 connecting the slow-release module 1 and the upper water source 6. The solenoid valve is controlled by the control system; when the solenoid valve opens, water from the upper water source 6 can be supplied.

[0055] Other areas not mentioned are the same as in Example 1.

[0056] Example 3

[0057] A sponge city water-guiding drip irrigation system is disclosed, connected to an upper water source 6. The system includes a slow-release module 1, water-guiding ropes 1-5, and rope fixers 3. The slow-release modules 1 are spaced 20m apart. The rope fixers 3 are adjustable in direction, with 16 rope fixers 3 on each slow-release module 1. The connecting rods 3-1 of each rope fixer 3 are configured according to the required number of sections, so that the radial rings 3-2 are distributed in different directions.

[0058] The connecting rod 3-1 and the center fixing part 3-23 of the radial ring 3-2 adopt a plug-in connection method. The connection points are compatible for fixing. The specific connection method adopts existing technology.

[0059] Other areas not mentioned are the same as in Example 1.

[0060] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A sponge city water-guiding drip irrigation system, connected to an external upper water source, characterized in that, The system includes a slow-release module, a water-guiding rope, and a rope fixer; the slow-release module is set at least once every 5m, and its interior is a water storage chamber. A connecting pipe is set at the upper end of the side wall of each slow-release module to connect to the upper water source or municipal drainage pipe or other slow-release modules; at least one threaded opening is set on the side wall of each slow-release module above the connecting pipe. The rope fixation device connects to the release module through a threaded opening. The rope fixation device includes a spoke ring, a connecting rod, and a rope fixing buckle. The connecting rod has at least two sections, one section having a connecting part adapted to the opening, and the other section having a connecting part adapted to the spoke ring, connected to the central fixing part of the spoke ring. The spoke ring includes an annular support body, a central fixing part, and several spoke supports, each spoke support body connected to the annular support body through the central fixing part. The rope fixing buckle is installed on the connecting rod and the spoke supports, and a rope fixing ring is provided on the rope fixing buckle. The connecting rods are connected by a rotating mechanism; The connecting rod is hollow, and a rope extension opening is provided on the wall of the connecting rod. One end of the water-guiding rope is placed at the bottom of the water storage chamber of the slow-release module, and the other end is inserted into the hollow inner cavity of the connecting rod and then out from the rope extension opening. The rope is wound around the annular support and spoke support of the spoke ring through the connecting rod and passes through the rope fixing ring, and is fixed by the rope fixing buckle. Each slow-release module has threaded openings on at least two side walls, and each opening is connected to a rope fixer via a connecting rod; the connecting pipe between each slow-release module and the upper water source includes a main pipe and a branch pipe, with the branch pipe connecting to each slow-release module; at the connection between the main pipe and the branch pipe, an arc-shaped diverter is provided laterally on the main pipe; the diverter is provided laterally from the wall of the main pipe toward the center of the branch pipe, and its height gradually decreases. The drip irrigation method of the drip irrigation system specifically includes the following steps: (1) Multiple slow-release modules are installed at least 5m apart in the underground soil layer on both sides of the urban road. The slow-release modules are connected to the upper water source through connecting pipes. A sensor for measuring water level is installed at the bottom of the water storage chamber of the slow-release module. The slow-release module is connected to several rope fixers. Each rope fixer is equipped with multiple connecting rods as needed. One end of the water guide rope is placed at the bottom of the water storage chamber, and the other end is wound around the radial ring along the connecting rod. The radial ring is placed in the underground soil layer that needs drip irrigation. The slow-release module is connected to the municipal collection pipe and drainage pipe through connecting pipes. (2) During rainfall, rainwater is initially treated and purified through municipal collection pipes. The purified rainwater is collected in the slow-release module for storage. The water stored in the slow-release module is guided outward unidirectionally through the reserved water guide rope to accurately irrigate the roots of green plants. When there is excessive rainfall, it is transported to the drainage pipe through the connecting pipe. (3) The terminal equipment acquisition instrument or control system obtains the water level information in the water storage chamber through the water level sensor reserved in the water storage chamber. When the water level reaches the value below the warning line, the upper water source is turned on to supplement water supply. When the water level reaches the preset maximum water level, the upper water source stops supplying water.

2. The sponge city water-guiding drip irrigation system according to claim 1, characterized in that, The inner layer of the sidewalls and bottom of each of the sustained-release modules is made of polyethylene material, the outer layer is an impermeable concrete wrapping layer, and the top plate is made of permeable concrete.

3. The sponge city water-guiding drip irrigation system according to claim 1, characterized in that, The diameter of the rope fixing ring is adapted to the water-guiding rope.

4. The sponge city water-guiding drip irrigation system according to claim 1, characterized in that, A sensor for measuring the water level is installed at the bottom of the water storage chamber of each of the slow-release modules. The sensor is connected to the terminal equipment data acquisition instrument or control system.

5. A sponge city drip irrigation system according to claim 1, characterized in that, The water-conducting rope is wrapped with a polyvinyl chloride film on the outer layer of the connecting rod section to prevent moisture loss.

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