Rainwater recycling structure and system
By designing a rainwater harvesting system with a self-regulating water intake structure and diversion channels, the problems of poor rainwater quality and blockage were solved, achieving efficient and safe rainwater harvesting and utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU YUMIN CONSTR ENG CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-14
AI Technical Summary
Existing rainwater harvesting systems often produce poor-quality rainwater, which can easily lead to pipe blockages, high maintenance costs, and low harvesting efficiency.
Design a rainwater harvesting structure, including a storage tank and a self-regulating water intake structure. Through the cooperation of telescopic hoses and floats, ensure that the water intake is always below the water surface. Combined with internal and external flow channels and support layer structure, extend the sedimentation time, divert rainwater flow paths, and prevent pollutants from entering.
It improved the quality of recycled rainwater, enhanced the safety of rainwater utilization, reduced maintenance costs, extended equipment lifespan, and increased rainwater recycling efficiency.
Smart Images
Figure CN224495271U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rainwater harvesting and utilization, and more specifically, to a rainwater recycling structure and system. Background Technology
[0002] Rainwater harvesting, as a sustainable water resource management strategy, has significant ecological, economic, and social value. Ecologically, rainwater harvesting effectively alleviates urban flooding by intercepting surface runoff, reducing the load on drainage systems, and replenishing groundwater, thus mitigating the problem of declining groundwater levels caused by over-exploitation. Economically, while initial investment in storage facilities is required, it reduces water bills in the long run. More importantly, rainwater utilization reduces wastewater treatment costs. Socially, this technology promotes the construction of sponge cities, enhances community resilience to extreme weather events, and fosters public awareness of water conservation, creating a community culture of resource recycling.
[0003] However, in existing rainwater harvesting systems, the harvested rainwater contains a lot of sediment and other pollutants, and floating debris on the water surface can easily enter the harvesting pipes through the rainwater intake structure. This results in poor rainwater quality, affecting the safety of its secondary use. Secondly, poor-quality harvested rainwater can also easily cause pipe blockage, requiring frequent cleaning, which increases the time and labor costs of maintenance and affects the efficiency of rainwater harvesting. Utility Model Content
[0004] The present invention aims to overcome at least one defect (deficiency) of the prior art and provide a rainwater harvesting structure and system to solve the problem of poor rainwater harvesting and purification effect.
[0005] One objective of this utility model is to provide a rainwater harvesting structure, including a water storage tank. The water storage tank includes a soil cover layer, a support layer, and a sedimentation layer arranged sequentially from top to bottom. A water intake layer is provided within the support layer, and a support assembly is provided within the support layer. The water inlet of the water storage tank is located above one side of the support layer, and the water outlet of the water storage tank is located below the other side of the support layer and communicates with the water intake layer. The water intake layer is provided with a self-adjusting water intake structure that changes with water level, and the water outlet communicates with the water intake layer through the water intake structure.
[0006] In this technical solution, the top of the supporting layer supports the topsoil layer, and the bottom abuts against the sediment layer. The inlet of the water storage tank is located above one side of the supporting layer, so that when water enters the water storage tank, it flows downwards, passing through the supporting layer before reaching the bottom of the tank, allowing for a sedimentation process. The outlet and inlet of the water storage tank are located on opposite sides, increasing the path time of rainwater from entering the water storage tank to flowing out of the tank, ensuring that it undergoes sufficient sedimentation and filtration before being recycled, thus improving the quality of the recycled rainwater.
[0007] The water intake layer is the structural range extending from the outlet to the highest point of the water intake. This water intake structure collects the upper layer of clean water from the reservoir. It operates within the water intake layer, self-adjusting according to water level changes. This means that the water intake point changes with the water level, but always remains at the upper water level. This ensures that the water intake structure consistently collects upper-layer clean water, rather than lower-layer wastewater, further improving the quality of the recycled rainwater and enhancing the safety of rainwater harvesting.
[0008] Furthermore, the water intake structure includes: a telescopic hose and a float. One end of the telescopic hose is rotatably connected to the water outlet, so that the drain outlet of the telescopic hose is connected to the water outlet. The other end of the telescopic hose is connected to the float. The water intake of the telescopic hose is located at one end of the telescopic hose near the float, or at one side of the float near the telescopic hose, so that when the water intake is higher than the water outlet under the action of the water level, the water below the water surface can be discharged along the telescopic hose.
[0009] In this technical solution, the float moves one end of the telescopic hose due to its own buoyancy, enabling the water intake structure to self-adjust with the water level. For example, when the water level rises, the float rises, causing the telescopic hose to rotate upwards, and the water intake also rises with the water level. The water intake is located at the float end of the telescopic hose or on the side of the float near the telescopic hose, allowing the outlet to be located below the water surface. This prevents floating debris from entering the water intake structure through the water intake, further improving the quality of the recycled rainwater and preventing blockage of the water intake structure.
[0010] Furthermore, the support layer includes: a water inlet area, and a plurality of inner guide channels and a plurality of outer guide channels connecting the upper and lower parts of the support layer; the water inlet area is located near the water inlet and connects the inner guide channels and the outer guide channels.
[0011] In this technical solution, the water inlet area can be understood as a water inlet avoidance area formed by the support layer. After the rainwater passes through the inlet, it first passes through the avoidance area and then enters the inner and outer guide channels. The setting of this area avoids the setting of the support layer from affecting the rainwater inlet speed and improves the rainwater collection efficiency. In addition, it also avoids large floating objects from being blocked by the support layer at the inlet and affecting the normal collection of rainwater.
[0012] The water entering the reservoir can flow to the bottom of the reservoir through internal or external diversion channels. This means that after entering the reservoir, the rainwater is diverted to different flow spaces, effectively slowing down the flow velocity, reducing the impact on the internal structure of the reservoir, and extending its service life. Furthermore, the reduced flow velocity prolongs the time it takes for the water to flow from the inlet to the bottom of the reservoir, which is conducive to the sedimentation of soil and other contaminants. In addition, the reduced flow velocity prevents the already settled pollutants from being impacted and floated up again, thus ensuring that the upper water level is clear water.
[0013] Furthermore, the support layer includes: multiple stacked support structures that avoid the water inlet area; the support structure includes: a base plate, multiple flow guide pipes arranged in an array on the base plate, and multiple flow guide holes surrounding the flow guide pipes; the flow guide pipes cooperate with each other to form the inner flow guide channel, and the flow guide holes cooperate with each other to form the outer flow guide channel.
[0014] In this technical solution, when rainwater flows through the external diversion channel, it will be obstructed by the bottom plate, which will further slow down the flow rate and facilitate the sedimentation of pollutants in the rainwater.
[0015] Furthermore, the telescopic hose includes: a rigid outer tube rotatably connected to the outlet, and a telescopic inner tube disposed inside the rigid outer tube and extending movably outward, wherein one end of the telescopic inner tube away from the outlet is connected to the float, and the water inlet is located on the telescopic inner tube.
[0016] In this technical solution, the outer tube is rigidly configured, which can limit the movement range of the float to a certain extent, controlling its movement within the target area. The outer tube and the inner tube are telescopically connected, further improving the float's flexibility and adaptability in water. When the float encounters an obstacle during its movement, the telescopic nature of the pipes allows the float to adjust its position more easily and thus detach from the obstacle, ensuring the normal recovery of rainwater.
[0017] Furthermore, the bottom of the water intake layer is higher than the bottom of the support layer, and within the water intake layer, the support component avoids the water intake structure.
[0018] In this technical solution, the water intake of the water intake structure is movable within the water intake layer, which is positioned above the bottom of the support layer, ensuring that the water intake is always located at a higher level in the water, further guaranteeing that the rainwater entering the water intake is clean water. The clearance arrangement of the support component provides ample space for the water intake structure to move.
[0019] Furthermore, it also includes an outer wrapping layer, which includes at least a waterproof layer.
[0020] In this technical solution, the waterproof layer allows the selection of materials for the supporting structure to consider only factors such as support performance. Finally, a waterproof fabric is wrapped around the support to achieve a waterproof effect, simplifying the manufacturing process. Simultaneously, the waterproof layer also protects the supporting structure and extends its service life. Preferably, the waterproof layer can be a waterproof fabric.
[0021] Furthermore, the lower part of the support layer is also provided with a flushing pipe network, which is located between two adjacent upper and lower support structures. The flushing pipe network is provided with multiple nozzles, which are respectively connected to the outer guide channel and the inner guide channel.
[0022] In this technical solution, the nozzle is connected to the inner and outer flow channels, which facilitates comprehensive cleaning of the entire recycling structure.
[0023] Another objective of this invention is to provide a rainwater harvesting system, including a pool body, wherein the pool body is provided with any of the aforementioned rainwater harvesting structures.
[0024] Furthermore, the rainwater harvesting structure divides the pool into a clear water pool and a collection pool, with the outlet of the water intake structure connected to the clear water pool and the inlet connected to the collection pool.
[0025] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0026] (1) This utility model has a water intake structure that adjusts itself according to the water level, so that the water intake structure can take the clean water from the upper layer and avoid taking the sewage from the lower layer, thereby improving the water quality of the recycled rainwater, improving the safety of rainwater utilization, and preventing the water intake structure from being blocked by pollutants, thus reducing maintenance costs.
[0027] (2) By using a float and a telescopic hose in conjunction with the position setting of the water inlet, the outlet can be located below the water surface, preventing floating objects on the water surface from entering the water intake structure through the water inlet, further improving the water quality of the recycled rainwater, and preventing the water intake structure from becoming clogged.
[0028] (3) This utility model diverts rainwater entering the water storage tank by setting up an internal flow channel, an external flow channel and a bottom plate, thereby slowing down the flow rate, reducing the impact on the internal structure of the water storage tank and extending its service life; the reduced flow rate also prolongs the time for water to flow from the inlet to the bottom of the tank, which is conducive to the sedimentation of mud and other substances; furthermore, the reduced flow rate prevents the sedimented pollutants from being impacted and floating up again, thus ensuring that the upper water level is clear water. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the water storage tank in Example 1.
[0030] Figure 2This is a schematic diagram of the water intake structure in Example 1.
[0031] Figure 3 This is a schematic diagram of the support structure in Example 1.
[0032] Figure 4 This is a partial structural diagram of the flushing pipe network in Example 1.
[0033] Figure 5 This is a schematic diagram of the rainwater harvesting system in Example 2.
[0034] Reference numerals: 100 reservoir, 110 inlet, 120 outlet, 200 cover layer, 300 sediment layer, 400 support layer, 410 support structure, 411 bottom plate, 412 guide hole, 420 guide pipe, 421 upper pipe, 422 lower pipe, 430 inlet area, 500 water intake structure, 510 water intake, 530 telescopic hose, 531 telescopic inner pipe, 532 rigid outer pipe, 540 float, 550 drain outlet, 600 clear water tank, 700 collection tank, 800 flushing pipe network. Detailed Implementation
[0035] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this invention. To better illustrate the following embodiments, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0036] Example 1
[0037] Combination Figures 1 to 4 This embodiment provides a rainwater harvesting structure, including a water storage tank 100. The water storage tank 100 includes a soil cover layer 200, a support layer 400, and a sedimentation layer 300 arranged sequentially from top to bottom. A water intake layer is provided in the support layer 400, and a support component is provided in the support layer 400. The water inlet 110 of the water storage tank 100 is located above one side of the support layer 400, and the water outlet 120 of the water storage tank 100 is located below the other side of the support layer 400 and communicates with the water intake layer. A water intake structure 500 that self-adjusts according to water level changes is provided in the water intake layer, and the water outlet 120 communicates with the water intake layer through the water intake structure 500.
[0038] The top of the support layer 400 supports the topsoil layer 200, and the bottom abuts against the sedimentation layer 300. The inlet 110 of the water storage tank 100 is located above one side of the support layer 400, so that when water enters the water storage tank 100, it flows downwards, passing through the support layer 400 before reaching the bottom of the tank, allowing for a sedimentation process. The outlet 120 and the inlet 110 of the water storage tank 100 are located on opposite sides, increasing the path time of rainwater from entering the water storage tank 100 to flowing out of the water storage tank 100, ensuring that it undergoes sufficient sedimentation and filtration before being recycled, thus improving the quality of the recycled rainwater.
[0039] The water intake layer is the structural range extending from the outlet 120 upwards to the highest point of the intake 510. The water intake structure 500 is used to collect the upper layer of clean water in the storage tank 100. Its self-adjusting design, which operates within the water intake layer and changes with the water level, can be understood as the intake 510 changing with the water level while always remaining at the upper water level. This ensures that the water intake structure 500 can always collect upper layer clean water, rather than lower layer sewage, further improving the quality of the recycled rainwater and enhancing the safety of rainwater recycling.
[0040] Furthermore, the water intake structure 500 includes: a telescopic hose 530 and a float 540. One end of the telescopic hose 530 is rotatably connected to the outlet 120, so that the drain outlet 550 of the telescopic hose 530 is connected to the outlet 120. The other end of the telescopic hose 530 is connected to the float 540. The water intake 510 of the telescopic hose 530 is located at one end of the telescopic hose 530 near the float 540, or on the side of the float 540 near the telescopic hose 530, so that when the water intake 510 is higher than the outlet 120 under the action of the water level, the water below the water surface can be discharged along the telescopic hose 530.
[0041] The float 540 moves one end of the telescopic hose 530 by its own buoyancy, enabling the water intake structure 500 to self-adjust with the water level. For example, when the water level rises, the float 540 rises, causing the telescopic hose 530 to rotate upwards, and the water intake 510 also rises with the water level. The water intake 510 is located at the end of the float 540 of the telescopic hose 530 or on the side of the float 540 near the telescopic hose 530, so that the outlet 120 can be located below the water surface, preventing floating objects from entering the water intake structure 500 through the water intake 510, further improving the water quality of the recycled rainwater, and preventing clogging of the water intake structure 500.
[0042] Furthermore, the support layer 400 includes: a water inlet area 430, which connects a plurality of inner guide channels and a plurality of outer guide channels above and below the support layer 400; the water inlet area 430 is located near the water inlet 110 and connects the inner guide channels and the outer guide channels.
[0043] The water inlet area 430 can be understood as a water inlet avoidance area formed by the support layer 400. After the rainwater passes through the inlet 110, it first passes through the avoidance area and then enters the inner and outer diversion channels. The setting of this area avoids the setting of the support layer 400 from affecting the rainwater inlet speed and improves the rainwater collection efficiency. In addition, it also avoids large floating objects from being blocked by the support layer 400 at the inlet 110 and affecting the normal collection of rainwater.
[0044] The water entering the reservoir 100 can flow to the bottom of the reservoir through the internal or external diversion channels. That is, after entering the reservoir 100, the rainwater is diverted to different flow spaces, which effectively slows down the flow velocity, reduces the impact on the internal structure of the reservoir 100, and extends its service life. In addition, the reduced flow velocity prolongs the time for the water to flow from the inlet 110 to the bottom of the reservoir, which is conducive to the sedimentation of soil and other contaminants. Furthermore, the reduced flow velocity prevents the sedimented pollutants from being impacted and floated up again, thus ensuring that the upper water level is clear water.
[0045] Further, the support layer 400 includes: a plurality of stacked support structures 410, the support structures 410 avoiding the water inlet area 430; the support structure 410 includes: a base plate 411, a plurality of flow guide pipes 420 arranged in an array on the base plate 411, and a plurality of flow guide holes 412 surrounding the flow guide pipes 420; the flow guide pipes 420 cooperate with each other to form the inner flow guide channel, and the flow guide holes 412 cooperate with each other to form the outer flow guide channel. Specifically, the flow guide pipe 420 is composed of an upper pipe 421 and a lower pipe 422 connected together.
[0046] When rainwater flows through the external diversion channel, it will be obstructed by the bottom plate 411, which will further slow down the flow rate and facilitate the sedimentation of pollutants in the rainwater.
[0047] As a further optional solution, the telescopic hose 530 includes: a rigid outer tube 532 rotatably connected to the outlet 120, and a telescopic inner tube 531 disposed within the rigid outer tube 532 and extending movably outward, the end of the telescopic inner tube 531 away from the outlet 120 being connected to the float 540, and the water inlet 510 being disposed on the telescopic inner tube 531.
[0048] The outer tube is rigidly configured, which can limit the range of motion of the float 540 to a certain extent, keeping it within the target area. The outer and inner tubes are telescopically connected, further improving the flexibility and adaptability of the float 540 in water. When the float 540 encounters an obstacle during its movement, the telescopic connection of the pipes allows the float 540 to adjust its position more easily and thus detach from the obstacle, ensuring the normal recovery of rainwater.
[0049] Furthermore, the bottom of the water intake layer is higher than the bottom of the support layer 400, and within the water intake layer, the support component avoids the water intake structure 500.
[0050] The water intake 510 of the water intake structure 500 moves within the water intake layer, which is positioned above the bottom of the support layer 400, ensuring that the water intake 510 is always located at a higher level in the water, further guaranteeing that the rainwater entering the water intake 510 is clean water. The clearance configuration of the support components provides ample space for the water intake structure 500 to move.
[0051] Furthermore, it also includes an outer wrapping layer, which includes at least a waterproof layer.
[0052] The outer wrapping layer is wrapped around the support structure 410. The waterproof layer allows the material selection for the support structure 410 to consider only factors such as support performance. Finally, the waterproof cloth is wrapped around it to achieve a waterproof effect, simplifying the manufacturing process of the support structure 410. At the same time, the waterproof layer also protects the support structure 410 and extends its service life. Preferably, the waterproof layer can be a waterproof cloth.
[0053] Furthermore, the lower part of the support layer 400 is also provided with a flushing pipe network 800. The flushing pipe network 800 is provided between two adjacent upper and lower support structures 410 by means of a bracket. The flushing pipe network 800 is provided with multiple nozzles, and the nozzles are respectively connected to the outer guide channel and the inner guide channel.
[0054] Example 2
[0055] like Figure 5 As shown, this embodiment provides a rainwater harvesting system, including a pool body, the pool body being equipped with the rainwater harvesting structure provided in Embodiment 1. Further, the rainwater harvesting structure divides the pool body into a clear water pool 600 and a collection pool 700, the outlet 120 of the water intake structure 500 is connected to the clear water pool 600, and the inlet 110 is connected to the collection pool 700.
[0056] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the technical solution of this utility model, and are not intended to limit the specific implementation of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the claims of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A rainwater harvesting structure, characterized in that, The system includes a water storage tank, which comprises, from top to bottom, a soil cover layer, a support layer, and a sedimentation layer. The support layer contains a water intake layer and a support assembly. The water inlet of the water storage tank is located above one side of the support layer, and the water outlet of the water storage tank is located below the other side of the support layer and communicates with the water intake layer. The water intake layer contains a self-adjusting water intake structure that changes with the water level, and the water outlet communicates with the water intake layer through the water intake structure.
2. The rainwater harvesting structure according to claim 1, characterized in that, The water intake structure includes a telescopic hose and a float. One end of the telescopic hose is rotatably connected to the water outlet so that the drain outlet of the telescopic hose is connected to the water outlet. The other end of the telescopic hose is connected to the float. The water intake of the telescopic hose is located on the side of the telescopic hose close to the float, or on the end of the float close to the telescopic hose, so that when the water intake is higher than the water outlet under the action of the water level, the water below the water surface can be discharged along the telescopic hose.
3. The rainwater harvesting structure according to claim 1, characterized in that, The support layer includes: a water inlet area, and several inner guide channels and several outer guide channels connecting the upper and lower parts of the support layer; the water inlet area is located near the water inlet and connects the inner guide channels and the outer guide channels.
4. The rainwater harvesting structure according to claim 3, characterized in that, The support layer includes: multiple stacked support structures that avoid the water inlet area; the support structure includes: a base plate, multiple flow guide pipes arranged in an array on the base plate, and multiple flow guide holes surrounding the flow guide pipes; the flow guide pipes cooperate with each other to form the inner flow guide channel, and the flow guide holes cooperate with each other to form the outer flow guide channel.
5. The rainwater harvesting structure according to claim 2, characterized in that, The telescopic hose includes: a rigid outer tube rotatably connected to the outlet, and a telescopic inner tube disposed inside the rigid outer tube and extending movably outward, wherein one end of the telescopic inner tube away from the outlet is connected to the float, and the water inlet is located on the telescopic inner tube.
6. The rainwater harvesting structure according to claim 4, characterized in that, The bottom of the water intake layer is higher than the bottom of the support layer, and within the water intake layer, the support component avoids the water intake structure.
7. The rainwater harvesting structure according to any one of claims 1 to 6, characterized in that, It also includes an outer wrapping layer, which includes at least a waterproof layer.
8. The rainwater harvesting structure according to claim 3, characterized in that, The lower part of the support layer is also provided with a flushing pipe network, which is located between two adjacent upper and lower support structures. The flushing pipe network is provided with multiple nozzles, which are respectively connected to the outer guide channel and the inner guide channel.
9. A rainwater harvesting system, comprising a pool, characterized in that, The pool body is provided with a rainwater recycling structure as described in any one of claims 1 to 8.
10. The rainwater harvesting system according to claim 9, characterized in that, The rainwater harvesting structure divides the pool into a clear water pool and a collection pool. The outlet of the water intake structure is connected to the clear water pool, and the inlet is connected to the collection pool.