An irrigation structure utilizing rainfall in a forest
By designing an irrigation structure that filters and purifies rainwater through multiple layers, the problem of scarce surface water in the understory planting area has been solved, enabling efficient utilization of rainwater resources in the forest for irrigation. This reduces equipment failure and maintenance costs, and ensures the stability and efficiency of the irrigation system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-14
AI Technical Summary
Due to the scarcity of surface water in forest planting areas, traditional irrigation methods rely on external water sources, which are costly and limited by geographical conditions. How to efficiently utilize forest rainfall resources for irrigation has become a problem.
Design an irrigation structure that includes a water collection ditch, a water diversion ditch, a water storage tank, a water purification component, a water delivery pipe, and a water supply pile. The structure purifies rainwater through multiple layers of filtration, including a grid, a quartz sand filter layer, an activated carbon adsorption layer, and a non-woven fabric filter layer, removing silt and harmful substances, and storing the purified rainwater for irrigation.
It effectively removes impurities from rainwater, reduces the risk of equipment blockage and damage, extends equipment life, reduces maintenance costs, ensures stable operation of irrigation systems, and efficiently utilizes forest rainfall resources.
Smart Images

Figure CN224482439U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of forestry irrigation technology, and more specifically, to an irrigation structure that utilizes rainfall in forests. Background Technology
[0002] Understory farming, as a modern ecological forestry model, plays a vital role in fully utilizing forest resources. Understory planting primarily focuses on edible fungi, medicinal herbs, and grain crops, all of which require specific irrigation water. However, understory planting areas are mostly located in mountainous forest areas, facing a scarcity of surface water. Furthermore, the canopy of trees intercepts rainfall, meaning that only a small amount reaches the ground when rainfall is low, leading to frequent water shortages for understory crops and severely hindering their normal growth. Therefore, increasing artificial irrigation is essential to ensure crop growth. However, traditional irrigation methods often rely on external water sources, which are costly and heavily limited by geographical conditions. How to efficiently utilize the forest's own rainfall resources for irrigation has become an urgent problem to be solved. Summary of the Invention
[0003] This invention aims to overcome the problem of efficiently utilizing the rainfall resources of forests for irrigation, and provides a technical solution that can solve the above problems.
[0004] An irrigation structure utilizing forest rainfall includes a collection ditch, a first water diversion ditch, a second water diversion ditch, a reservoir, a water purification component, a water delivery pipe, water delivery branch pipes, and water supply piles. The collection ditch is parallel to one side of the road. The upstream end of the collection ditch is connected to the inlet of the reservoir via the first water diversion ditch, and the downstream end of the collection ditch is connected to the outlet of the reservoir via the second water diversion ditch. The water purification component is located inside the reservoir. The reservoir and the water supply piles are connected via the water delivery pipe and water delivery branch pipes. A regulating valve is installed on the water delivery pipe. The water purification component is located between the inlet and outlet of the reservoir. The water purification component includes a grid, a frame, a quartz sand filter layer, an activated carbon adsorption layer, and a non-woven fabric filter layer. The frame is located in the lower middle part of the reservoir, and the grid is fixedly installed inside the frame. The quartz sand filter layer, activated carbon adsorption layer, and non-woven fabric filter layer are laid tightly on the grid from bottom to top.
[0005] Furthermore, it also includes a sand discharge pipe. A sedimentation tank is installed on the first water intake ditch. The sedimentation tank is connected to the downstream position of the water collection ditch via a sand discharge pipe. A manual valve is installed at the connection between the sedimentation tank and the sand discharge pipe.
[0006] Furthermore, support columns are pre-embedded at the bottom of the water storage tank, and the frame is fixedly installed on top of the support columns.
[0007] Furthermore, the particle size of the quartz sand filter layer gradually increases from top to bottom, the activated carbon adsorption layer uses granular activated carbon, and the non-woven fabric filter layer uses polypropylene non-woven fabric.
[0008] Furthermore, the inner walls of the water collection ditch, the first water diversion ditch, and the man-made water diversion ditch are provided with a seepage-proof coating, which is made of a high-polymer waterproof material.
[0009] Furthermore, the water supply pile is equipped with multiple outlets, and each outlet is equipped with an independent valve and nozzle.
[0010] Furthermore, the nozzles include sprinkler heads and drip irrigation heads.
[0011] Furthermore, a non-woven filter layer covers the top of the frame, with its edge extending beyond the top edge of the frame. A stainless steel strip presses the non-woven fabric firmly onto the outer flange of the top of the frame, and the stainless steel strip is connected to the frame by bolts.
[0012] Furthermore, the water supply pipes and branch pipes are made of corrosion-resistant PVC pipes.
[0013] Furthermore, water supply piles are installed every 10-20 meters, and each pile has 4-6 outlets.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. Compared to existing technologies, this utility model's irrigation structure utilizing forest rainfall incorporates a water purification component. After rainwater undergoes initial sedimentation in a sedimentation tank, it enters a storage tank. First, it flows through a non-woven fabric filter layer to remove fine impurities; then, it enters an activated carbon adsorption layer where harmful substances are adsorbed; finally, it passes through a quartz sand filter layer to trap larger particles. The purified rainwater, after multiple filtration stages, is stored in the storage tank for irrigation. Unpurified rainwater contains silt and impurities that can easily cause blockages in water supply pipelines, jamming of regulating valves, and wear on water outlets and sprinklers, increasing the probability of system failure and maintenance frequency. The water purification device significantly reduces impurities entering subsequent pipelines, lowering the risk of blockages and damage to components such as water supply pipes, valves, and sprinklers, extending equipment lifespan, reducing maintenance and replacement costs and manpower, ensuring long-term stable operation of the irrigation system, and efficiently utilizing the forest's own rainfall resources for irrigation. Attached Figure Description
[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0017] Figure 1This is a schematic diagram of the overall structure of the irrigation structure utilizing forest rainfall in this utility model.
[0018] Figure 2 This is a partial structural schematic diagram of the water purification component in this utility model.
[0019] Figure 3 This is a partial structural diagram of the irrigation structure utilizing forest rainfall in this utility model.
[0020] Figure 4 This is a cross-sectional structural diagram of the water purification component in this utility model.
[0021] In the diagram: 1. Water collection ditch; 2. First water intake ditch; 3. Second water intake ditch; 4. Sedimentation tank; 5. Water storage tank; 6. Water purification components; 601. Bar screen; 602. Frame; 603. Quartz sand filter layer; 604. Activated carbon adsorption layer; 605. Non-woven fabric filter layer; 7. Support column; 8. Sand discharge pipe; 9. Manual valve; 10. Water supply pipe; 11. Water supply branch pipe; 12. Water supply pile; 13. Regulating valve. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] like Figure 1 As shown, the irrigation structure utilizing forest rainfall in this embodiment includes a water collection ditch 1, a first water diversion ditch 2, a second water diversion ditch 3, a reservoir 5, a water purification component 6, a water delivery pipe 10, a water delivery branch pipe 11, and water supply piles 12. The water collection ditch 1 is parallel to one side of the road. The upstream position of the water collection ditch 1 is connected to the inlet of the reservoir 5 through the first water diversion ditch 2, and the downstream position of the water collection ditch 1 is connected to the outlet of the reservoir 5 through the second water diversion ditch 3. The water purification component 6 is installed inside the reservoir 5, between the inlet and outlet of the reservoir 5. The reservoir 5 is connected to the water supply piles 12 through the water delivery pipe 10 and the water delivery branch pipe 11. A regulating valve 13 is installed on the water delivery pipe 10. Each water supply pile 12 is installed every 10-20 meters and has 4-6 outlets.
[0024] In this utility model, such as Figure 1As shown, the inner walls of the water collection ditch 1, the first water diversion ditch 2 and the man-made water diversion ditch are provided with a seepage-proof coating. The seepage-proof coating is made of high-polymer waterproof material. The water supply pipe 10 and the water supply branch pipe 11 are made of corrosion-resistant PVC pipe. The water supply pile 12 is provided with multiple water outlets, and each water outlet is equipped with an independent valve and nozzle. The nozzles include sprinkler nozzles and drip irrigation nozzles.
[0025] In this utility model, such as Figure 1 , 3 As shown, a sedimentation tank 4 is installed on the first water intake ditch 2. The sedimentation tank 4 is connected to the downstream position of the water collection ditch 1 through a sand discharge pipe 8. A manual valve 9 is installed at the connection between the sedimentation tank 4 and the sand discharge pipe 8. The manual valve 9 is used periodically to discharge the deposited silt into the water collection ditch 1 using water pressure, avoiding the tedious manual dredging. The sedimentation tank can remove silt and impurities from rainwater more efficiently, reducing the risk of blockage to the water storage tank 5 and the irrigation system, while reducing maintenance costs and extending the service life of the equipment.
[0026] In this utility model, such as Figure 1 , 2 As shown in Figure 4, the water purification component 6 includes a grid 601, a frame 602, a quartz sand filter layer 603, an activated carbon adsorption layer 604, and a non-woven fabric filter layer 605. The frame 602 is located in the lower middle part of the water storage tank 5. A support column 7 is pre-embedded at the bottom of the water storage tank 5. The frame 602 is bolted to the top of the support column 7. The grid 601 is bolted inside the frame 602. The quartz sand filter layer 603, the activated carbon adsorption layer 604, and the non-woven fabric filter layer 605 are laid tightly on the grid 601 from bottom to top. The particle size of the quartz sand filter layer 603 gradually increases from top to bottom. The activated carbon adsorption layer 604 uses granular activated carbon. The non-woven fabric filter layer 605 uses polypropylene non-woven fabric. The non-woven fabric filter layer 605 covers the top of the frame 602, and its edge extends beyond the top edge of the frame 602. A stainless steel strip is used to press the non-woven fabric onto the outer edge of the top of the frame 602. The stainless steel strip is connected to the frame 602 by bolts.
[0027] In this invention, the vertically layered arrangement of the water purification component 6 ensures that rainwater must sequentially penetrate the non-woven fabric filter layer 605, the activated carbon adsorption layer 604, and the quartz sand filter layer 603, forming a top-down filtration path. This guarantees that each filter layer can fully function, purifying rainwater layer by layer. This design ensures the stability of each filter layer without affecting normal water flow, and also facilitates easy disassembly and replacement of the filter material. Simply loosen the fixing bolts of the corresponding layer to remove the old material and fill it with new material.
[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An irrigation structure utilizing forest rainfall, characterized in that: The system includes a water collection ditch (1), a first water intake ditch (2), a second water intake ditch (3), a reservoir (5), a water purification component (6), a water delivery pipe (10), a water delivery branch pipe (11), and a water supply pile (12). The water collection ditch (1) is parallel to one side of the road. The upstream position of the water collection ditch (1) is connected to the inlet of the reservoir (5) through the first water intake ditch (2), and the downstream position of the water collection ditch (1) is connected to the outlet of the reservoir (5) through the second water intake ditch (3). The water purification component (6) is located inside the reservoir (5). The reservoir (5) and the water supply pile (12) are connected by the water delivery pipe (10) and the water delivery branch pipe. (11) Connected and interconnected, the water supply pipe (10) is equipped with a regulating valve (13), the water purification component (6) is located between the inlet and outlet of the water storage tank (5), the water purification component (6) includes a grid (601), a frame (602), a quartz sand filter layer (603), an activated carbon adsorption layer (604) and a non-woven fabric filter layer (605), the frame (602) is located in the middle and lower part of the water storage tank (5), the grid (601) is fixedly installed in the frame (602), and the quartz sand filter layer (603), the activated carbon adsorption layer (604) and the non-woven fabric filter layer (605) are laid tightly on the grid (601) from bottom to top.
2. The irrigation structure utilizing forest rainfall according to claim 1, characterized in that: It also includes a sand discharge pipe (8), a sedimentation tank (4) is provided on the first water diversion ditch (2), the sedimentation tank (4) is connected and communicated with the downstream position of the water collection ditch (1) through the sand discharge pipe (8), and a manual valve (9) is provided at the connection between the sedimentation tank (4) and the sand discharge pipe (8).
3. The irrigation structure utilizing forest rainfall according to claim 2, characterized in that: The bottom of the water storage tank (5) is pre-embedded with a support column (7), and the frame (602) is fixedly installed on the top of the support column (7).
4. The irrigation structure utilizing forest rainfall according to claim 3, characterized in that: The particle size of the quartz sand filter layer (603) gradually increases from top to bottom, the activated carbon adsorption layer (604) uses granular activated carbon, and the non-woven fabric filter layer (605) uses polypropylene non-woven fabric.
5. The irrigation structure utilizing forest rainfall according to claim 4, characterized in that: The inner walls of the water collection ditch (1), the first water diversion ditch (2) and the second water diversion ditch (3) are provided with a seepage-proof coating, which is made of a polymer waterproof material.
6. The irrigation structure utilizing forest rainfall according to claim 5, characterized in that: The water supply pile (12) is provided with multiple water outlets, and each water outlet is equipped with an independent valve and nozzle.
7. An irrigation structure utilizing forest rainfall according to claim 6, characterized in that: The nozzles include sprinkler nozzles and drip irrigation nozzles.
8. An irrigation structure utilizing forest rainfall according to claim 7, characterized in that: The nonwoven filter layer (605) covers the top of the frame (602), and its edge extends beyond the top edge of the frame. A stainless steel strip is used to press the nonwoven fabric onto the outer flange of the top of the frame (602). The stainless steel strip is connected to the frame (602) by bolts.
9. An irrigation structure utilizing forest rainfall according to claim 8, characterized in that: The water supply pipe (10) and water supply branch pipe (11) are made of corrosion-resistant PVC pipe.
10. An irrigation structure utilizing forest rainfall according to claim 9, characterized in that: The water supply piles (12) are installed every 10-20 meters and have 4-6 outlets.