Rainwater recycling device for municipal gardens
By using an adjustable rainwater harvesting device, combined with automated control and intelligent filtration system, the problems of low rainwater harvesting efficiency and high management costs in municipal gardens have been solved, enabling flexible adjustment of rainwater harvesting area and water quality management.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG YAYUAN CONSTR CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-02
AI Technical Summary
Existing municipal and landscaping rainwater harvesting systems cannot dynamically adjust the collection area, are inefficient when rainfall changes, lack efficient filtration and intelligent sewage discharge functions, are prone to clogging pipes with impurities, have insufficient automation, and have high management costs.
An adjustable rainwater collection device is adopted, including a conveying cylinder, a limiting ring, a moving cylinder, spokes, a waterproof cloth, and an adjustment mechanism. Combined with a motor, gears, and screw drives, the area of the waterproof cloth is automatically adjusted. A filter cartridge, a water storage tank, a drain pipe, a solenoid valve, and a liquid level sensor are set up for intelligent filtration and sewage discharge control.
It enables dynamic adjustment of the rainwater collection area, improves collection efficiency, ensures water purity, reduces management costs, and enhances the automation level and service life of the device.
Smart Images

Figure CN224314284U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of rainwater harvesting and utilization, and in particular to a rainwater harvesting and utilization device for municipal landscaping. Background Technology
[0002] Rainwater harvesting and utilization devices for municipal gardens are equipment used to collect, treat, and utilize rainwater in municipal gardens. By collecting rainwater and treating it through filtration and sedimentation, the rainwater can be used for garden irrigation, landscape water replenishment, etc., so as to achieve the rational use of water resources and save municipal water costs.
[0003] A search revealed a Chinese patent announcement, "A Shading Device for Municipal Garden Tree Seedlings," which discloses a shading device for municipal garden tree seedlings, comprising a sunshade umbrella and a water storage device. The sunshade umbrella includes a frame, an umbrella surface, and a handle. A water channel runs through the middle of the handle from top to bottom, with a water collection hole at the top and a corresponding water outlet on the side of the bottom. The water collection hole and the water outlet are connected through the water channel. The sunshade umbrella is connected to the water storage device via the water outlet. The water storage device includes a water tank and a sprinkler device. The sprinkler device is located on top of the water tank, which also has a water pipe inlet. The water storage device collects rainwater through the water tank and can connect to an external water source for irrigating the seedlings through the water pipe inlet. This invention prevents seedlings from being damaged by strong sunlight or heavy rain, while also collecting and recycling rainwater for subsequent irrigation, ensuring a suitable growing environment for the seedlings and effectively improving resource utilization.
[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: existing municipal and landscaping rainwater harvesting devices mostly adopt fixed structures, and the rainwater collection area cannot be dynamically adjusted according to rainfall, resulting in easy overflow during heavy rain and low collection efficiency during light rain. Furthermore, they lack efficient filtration and intelligent sewage discharge functions, and impurities in rainwater are prone to accumulate and clog pipes, affecting water quality and the lifespan of the device. At the same time, the degree of automation is insufficient, requiring manual intervention to start and stop the equipment, resulting in high management costs. Utility Model Content
[0005] In order to solve the problems mentioned in the background art, this application provides a rainwater recycling device for municipal landscaping.
[0006] This application provides a rainwater harvesting and utilization device for municipal landscaping, which adopts the following technical solution:
[0007] A rainwater recycling device for municipal landscaping includes a conveying cylinder, a limiting ring, a movable cylinder, spokes, and a waterproof cloth. The movable cylinder is fitted onto the top surface of the conveying cylinder. The limiting ring is installed on the top surface of the conveying cylinder and is located at the top and bottom of the movable cylinder. The spokes are installed on the surface of the movable cylinder, and there are several spokes arranged in a ring at equal intervals. The waterproof cloth is installed on the top surface of the conveying cylinder and is located on top of the limiting ring. An adjustment mechanism is installed on the right side of the top of the conveying cylinder, and a support assembly is installed on the outer side of the top of the spokes.
[0008] With the above scheme, the conveyor cylinder serves as the main support structure, and the limiting ring limits the movement of the moving cylinder, so that the moving cylinder can only move up and down along the conveyor cylinder.
[0009] Several spokes arranged in a ring at equal intervals can support the waterproof fabric and form a water collection structure;
[0010] The adjustment mechanism can drive the movable cylinder to rise and fall, causing the spokes to change their unfolding angle, thereby adjusting the water collection area of the waterproof cloth;
[0011] The support components assist the spokes in stabilizing the waterproof fabric, and the overall system achieves an adjustable rainwater collection function through the cooperation of various components.
[0012] Optionally, the adjusting mechanism includes a motor, which is installed on the right side of the top of the conveying cylinder. A gear one is installed at the output end of the motor. Bearings are movably installed on the right side of the inner wall of the limiting ring. A lead screw is installed on the inner ring of the bearing. The surface of the lead screw is threadedly connected to the inner wall of the moving cylinder. A gear two is installed on the top of the lead screw. One side of the gear two meshes with the gear one.
[0013] With the above scheme, the motor drives gear one to rotate, gear one meshes with gear two, and drives the lead screw to rotate inside the bearing;
[0014] Because the lead screw is threadedly connected to the inner wall of the moving cylinder, the rotation of the lead screw is converted into the vertical linear motion of the moving cylinder. This adjustment mechanism realizes the automated control of the lifting and lowering of the moving cylinder through the transmission cooperation of the motor, gears and lead screw nut, and thus the working state of the waterproof cloth can be flexibly adjusted according to the needs.
[0015] Optionally, the support assembly includes a retaining ring mounted on the outer side of the top of the spoke, a support bar movably mounted on one side of the retaining ring, and the other end of the support bar movably mounted to the top of the surface of the conveyor cylinder.
[0016] With the above scheme, the fixing ring is installed on the outer side of the top of the spoke, one end of the support bar is movably connected to the fixing ring, and the other end is movably connected to the top of the conveyor cylinder;
[0017] When the moving cylinder is raised or lowered, it causes the spokes to swing, and the support strips change their tilt angle accordingly, which helps to support the spokes and keeps the waterproof cloth in a stable structural shape during the unfolding or retraction process.
[0018] Optionally, a filter cartridge is installed on the top of the conveying cylinder, and a voltage-type rain sensor is installed on the top of the filter cartridge.
[0019] With the above solution, the filter cartridge is installed on the top of the conveying cylinder, which can perform preliminary filtration of the collected rainwater and intercept larger particles such as leaves and debris in the rainwater.
[0020] Voltage-type rain gauges monitor rainfall in real time, converting the rainfall signal into an electrical signal and transmitting it to the control system so that the system can automatically adjust the working status of the subsequent recycling process according to the amount of rainfall.
[0021] Optionally, a water storage tank is installed at the bottom of the conveying cylinder, and a drain pipe is connected to the bottom of the water storage tank. A solenoid valve is installed on the right side of the drain pipe.
[0022] The above solution allows the water storage tank to store filtered rainwater.
[0023] The sewage pipe is connected to the bottom of the water storage tank. When a lot of mud and other impurities accumulate at the bottom of the water storage tank, the solenoid valve can be opened to discharge the sewage, which makes it easy to clean the water storage tank regularly and ensure the quality of the stored water.
[0024] The solenoid valve enables on / off control of the sewage discharge process, facilitating operation and management.
[0025] Optionally, a grid plate is installed at the bottom of the inner wall of the water storage tank, and a liquid level sensor is installed at the top of the left side of the inner wall of the water storage tank.
[0026] With the above solution, the grid plate is installed at the bottom of the inner wall of the water storage tank, which can support and block the impurities that settle at the bottom, and prevent the impurities from clogging the drain pipe.
[0027] The liquid level sensor monitors the water level in the storage tank in real time and transmits the water level signal to the control system so as to know the water storage capacity in a timely manner and provide a basis for subsequent water replenishment or water use scheduling.
[0028] Optionally, a control device is installed on the top right side of the inner wall of the water storage tank, and a drain pipe is installed on the right side of the water storage tank.
[0029] With the above scheme, the control device is installed on the top right side of the inner wall of the water storage tank. It can receive signals transmitted by rain sensors, liquid level sensors, etc., and perform intelligent control of the operation of the entire rainwater recycling device, such as controlling the start and stop of the motor and the switching of the solenoid valve.
[0030] The drainage pipe is connected to the right side of the water storage tank to transport the stored rainwater to water-using systems such as municipal garden irrigation systems, so as to realize the recycling of rainwater.
[0031] In summary, this application includes the following beneficial technical effects:
[0032] 1. This utility model, by setting up an adjustment mechanism, a moving cylinder, spokes, waterproof cloth and other components, and through the cooperation between the adjustment mechanism and the moving cylinder components, enables the adjustment mechanism to control the raising and lowering of the moving cylinder through the motor-driven gear one, gear two and screw transmission, thereby achieving the effect of dynamically adjusting the water collection area of the screened waterproof cloth by changing the height of the moving cylinder, solving the problems of low collection efficiency and easy overflow of fixed structures.
[0033] 2. This utility model, by setting up components such as a filter cartridge, a water storage tank, a drain pipe, a solenoid valve, a liquid level sensor, and a control device, and through the cooperative relationship between the filter cartridge and the water storage tank, enables the filter cartridge to purify impurities in the rainwater entering the water storage tank by intercepting and filtering. At the same time, the liquid level sensor transmits signals to the control device by monitoring the water level in real time. Thus, this device can achieve the effect of precise management of the quality and capacity of the screened stored water through intelligent filtration and sewage discharge control, thereby improving the practicality and reliability of rainwater harvesting. Attached Figure Description
[0034] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;
[0035] Figure 2 This is a cross-sectional view of an embodiment of this application;
[0036] Figure 3 This is a schematic diagram of the split structure in an embodiment of this application;
[0037] Figure 4 This is a schematic diagram of the disassembled structure of the adjustment mechanism in an embodiment of this application.
[0038] Reference numerals in the attached drawings: 1. Conveying cylinder; 2. Limiting ring; 3. Moving cylinder; 4. Spoke; 5. Waterproof cloth; 6. Adjusting mechanism; 61. Motor; 62. Gear 1; 63. Bearing; 64. Lead screw; 65. Gear 2; 7. Support assembly; 71. Fixing ring; 72. Support bar; 8. Filter cartridge; 9. Voltage-type rain sensor; 10. Water storage tank; 11. Sewage pipe; 12. Solenoid valve; 13. Grid plate; 14. Liquid level sensor; 15. Control device; 16. Drainage pipe. Detailed Implementation
[0039] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0040] This application discloses a rainwater recycling device for municipal landscaping.
[0041] Please see Figure 1 The system includes a conveying cylinder 1, a limiting ring 2, a moving cylinder 3, spokes 4, and a waterproof cloth 5. The moving cylinder 3 is fitted onto the top of the surface of the conveying cylinder 1. The limiting ring 2 is installed on the top of the surface of the conveying cylinder 1 and is located at the top and bottom of the moving cylinder 3. The spokes 4 are used to support the waterproof cloth 5 and are installed on the surface of the moving cylinder 3. Several spokes 4 are provided and are distributed in a ring at equal intervals. The waterproof cloth 5 is installed on the top of the surface of the conveying cylinder 1 and is located on top of the limiting ring 2 to support the waterproof cloth. An adjustment mechanism 6 is installed on the right side of the top of the conveying cylinder 1, and a support assembly 7 is installed on the outer side of the top of the spokes 4. The conveying cylinder 1 is the main support structure, and the moving cylinder 3 can move along its axial direction, dynamically adjusting the water collection area and changing the unfolded area as the spokes 4 swing.
[0042] Please see Figure 2 A control device 15 is installed on the top right side of the inner wall of the water storage tank 10, and a drain pipe 16 is installed on the right side of the water storage tank 10. The control device 15 receives signals and controls the start and stop.
[0043] A water storage tank 10 is installed at the bottom of the conveying cylinder 1. A drain pipe 11 is connected to the bottom of the water storage tank 10. A solenoid valve 12 is installed on the right side of the drain pipe 11. The water storage tank 10 is used to store filtered rainwater. The solenoid valve 12 is located at the outlet of the drain pipe 11 and is used to control the opening and closing of the drain pipe 11 to discharge impurities deposited in the water storage tank 10.
[0044] A grid plate 13 is installed at the bottom of the inner wall of the water storage tank 10, and a liquid level sensor 14 is installed at the top of the left side of the inner wall of the water storage tank 10. The liquid level sensor 14 is used to monitor the water level in the water storage tank 10 in real time and transmit the monitored signal to the control system.
[0045] Please see Figure 3 A filter cylinder 8 is installed on the top of the conveying cylinder 1, and a voltage-type rain sensor 9 is installed on the top of the filter cylinder 8. The voltage-type rain sensor 9 monitors the rainfall in real time and converts the rainfall signal into an electrical signal, which is then transmitted to the control system.
[0046] The support assembly 7 includes a fixing ring 71, which is installed on the outer side of the top of the spoke 4. A support bar 72 is movably installed on one side of the fixing ring 71. The other end of the support bar 72 is movably installed on the top of the surface of the conveyor cylinder 1. The two ends of the support bar 72 are hinged, and the tilt angle of the support bar 72 changes accordingly, thereby assisting in supporting the spoke 4.
[0047] The adjusting mechanism 6 includes a motor 61, which is installed on the right side of the top of the conveying cylinder 1. A gear 62 is installed at the output end of the motor 61. Bearings 63 are movably installed on the right side of the inner wall of the limiting ring 2. A lead screw 64 is installed on the inner ring of the bearing 63. The surface of the lead screw 64 is threadedly connected to the inner wall of the moving cylinder 3. A gear 65 is installed on the top of the lead screw 64. One side of the gear 65 meshes with the gear 62. The lead screw 64 is threadedly engaged with the inner wall of the moving cylinder 3.
[0048] The implementation principle of a rainwater recycling device for municipal landscaping in this application embodiment is as follows: when there is no rainfall, the moving cylinder 3 can be driven to rise by the adjusting mechanism 6, which drives the spokes 4 to unfold outward to a horizontal or inclined state, so that the waterproof cloth 5 forms a large area of shading plane.
[0049] At this time, the waterproof cloth 5 has both waterproof and sun protection properties, which can provide shade and protection for garden rest areas, seedling cultivation areas, etc., and effectively reduce the impact of high temperature on plants and facilities.
[0050] This function eliminates the need for additional shading equipment. It achieves flexible switching between rainwater harvesting and shading scenarios through the same adjustable support structure, significantly improving the space utilization and efficiency of municipal and garden facilities. It is especially suitable for urban open green spaces, parks, and other scenarios that combine rainwater management and public service needs.
[0051] The conveying cylinder 1 serves as the main support structure, and the limiting ring 2 limits the movement of the moving cylinder 3, allowing the moving cylinder 3 to move only up and down along the conveying cylinder 1.
[0052] Several spokes 4 arranged in a ring at equal intervals can support the waterproof cloth 5, forming a water collection structure;
[0053] The adjustment mechanism 6 can drive the movable cylinder 3 to rise and fall, thereby causing the spokes 4 to change their unfolding angle and thus adjust the water collection area of the waterproof cloth 5.
[0054] The support component 7, along with the auxiliary spokes 4, provides stable support for the waterproof fabric 5. Through the coordinated operation of these components, the entire system achieves an adjustable rainwater collection function.
[0055] Motor 61 drives gear 62 to rotate, gear 62 meshes with gear 65, and drives lead screw 64 to rotate in bearing 63;
[0056] Because the lead screw 64 is threadedly connected to the inner wall of the moving cylinder 3, the rotation of the lead screw 64 is converted into the vertical linear motion of the moving cylinder 3. The adjustment mechanism 6 realizes the automated control of the lifting and lowering of the moving cylinder 3 through the transmission cooperation of the motor 61, gears and the lead screw 64 nut, and can flexibly adjust the working state of the waterproof cloth 5 according to the needs.
[0057] The fixing ring 71 is installed on the outer side of the top of the spoke 4, and one end of the support bar 72 is movably connected to the fixing ring 71, and the other end is movably connected to the top of the conveyor cylinder 1;
[0058] When the moving cylinder 3 rises and falls, it causes the spokes 4 to swing, and the support bar 72 changes its tilt angle accordingly, which plays the role of assisting in supporting the spokes 4, so that the waterproof cloth 5 maintains a stable structural shape during the unfolding or retraction process.
[0059] The filter cartridge 8 is installed on top of the conveying cylinder 1, which can perform preliminary filtration of the collected rainwater and intercept larger particles such as leaves and debris in the rainwater.
[0060] The voltage-type rain sensor 9 monitors rainfall in real time, converts the rainfall signal into an electrical signal and transmits it to the control system so that the system can automatically adjust the working status of the subsequent recycling process according to the amount of rainfall.
[0061] The drain pipe 11 is connected to the bottom of the water storage tank 10. When a lot of mud and sand or other impurities accumulate at the bottom of the water storage tank 10, the solenoid valve 12 can be opened to discharge the sewage, which makes it easy to clean the water storage tank 10 regularly and ensure the water quality.
[0062] Solenoid valve 12 enables on / off control of the sewage discharge process, facilitating operation and management;
[0063] The grid plate 13 is installed at the bottom of the inner wall of the water storage tank 10, which can support and block the impurities that settle at the bottom, and prevent the impurities from clogging the drain pipe 11.
[0064] The liquid level sensor 14 monitors the water level in the water storage tank 10 in real time and transmits the water level signal to the control system so as to know the water storage capacity in time and provide a basis for subsequent water replenishment or water use scheduling. The control device 15 is installed on the top right side of the inner wall of the water storage tank 10. It can receive signals transmitted by the rain sensor, liquid level sensor 14, etc., and perform intelligent control on the operation of the entire rainwater recycling device, such as controlling the start and stop of the motor 61 and the opening and closing of the solenoid valve 12.
[0065] The drain pipe 16 is connected to the right side of the water storage tank 10, and is used to transport the stored rainwater to water-using ends such as municipal garden irrigation systems to realize the recycling of rainwater.
[0066] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A rainwater recycling device for municipal landscaping, comprising a conveying cylinder (1), a limiting ring (2), a moving cylinder (3), spokes (4), and a waterproof cloth (5), characterized in that: The movable cylinder (3) is sleeved on the top of the surface of the conveying cylinder (1). The limiting ring (2) is installed on the top of the surface of the conveying cylinder (1). The limiting ring (2) is located at the top and bottom of the movable cylinder (3). The spokes (4) are installed on the surface of the movable cylinder (3). There are several spokes (4), and the several spokes (4) are distributed in a ring at equal distances. The waterproof cloth (5) is installed on the top of the surface of the conveying cylinder (1). The waterproof cloth (5) is located on the top of the limiting ring (2). An adjustment mechanism (6) is installed on the right side of the top of the conveying cylinder (1). A support component (7) is installed on the outer side of the top of the spokes (4).
2. The rainwater harvesting and utilization device for municipal landscaping as described in claim 1, characterized in that: The adjusting mechanism (6) includes a motor (61), which is installed on the right side of the top of the conveying cylinder (1). A gear (62) is installed at the output end of the motor (61). A bearing (63) is movably installed on the right side of the inner wall of the limiting ring (2). A lead screw (64) is installed on the inner ring of the bearing (63). The surface of the lead screw (64) is threaded to the inner wall of the moving cylinder (3). A gear (65) is installed on the top of the lead screw (64). One side of the gear (65) meshes with the gear (62).
3. A rainwater harvesting and utilization device for municipal landscaping as described in claim 1, characterized in that: The support assembly (7) includes a fixing ring (71) which is installed on the outer side of the top of the spoke (4). A support bar (72) is movably installed on one side of the fixing ring (71), and the other end of the support bar (72) is movably installed on the top of the surface of the conveying cylinder (1).
4. A rainwater harvesting and utilization device for municipal landscaping as described in claim 1, characterized in that: A filter cylinder (8) is installed on the top of the conveying cylinder (1), and a voltage-type rain sensor (9) is installed on the top of the filter cylinder (8).
5. A rainwater harvesting and utilization device for municipal landscaping as described in claim 1, characterized in that: A water storage tank (10) is installed at the bottom of the conveying cylinder (1), and a drain pipe (11) is connected to the bottom of the water storage tank (10). A solenoid valve (12) is installed on the right side of the drain pipe (11).
6. A rainwater harvesting and utilization device for municipal landscaping as described in claim 5, characterized in that: A grid plate (13) is installed at the bottom of the inner wall of the water storage tank (10), and a liquid level sensor (14) is installed at the top of the left side of the inner wall of the water storage tank (10).
7. A rainwater harvesting and utilization device for municipal landscaping according to claim 5, characterized in that: A control device (15) is installed on the top right side of the inner wall of the water storage tank (10), and a drain pipe (16) is installed on the right side of the water storage tank (10).