Ground surface rainwater collecting device for slope cropland
By using a PP membrane layer, a diversion channel, and a filtration mechanism in the rainwater collection device for sloping farmland, the problem of detection errors caused by silt and impurities has been solved, achieving highly accurate rainwater collection and analysis.
Patent Information
- Application Number
- CN202423054629.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-11
AI Technical Summary
During the rainwater collection process on sloping farmland, the presence of silt and other impurities leads to large errors in rainwater analysis and detection, reducing the accuracy of the detection.
It adopts a combination structure of PP membrane layer, flow channel, filter mechanism and collection box. Through the design of mesh plate, filter plate and guide block, it can filter and guide rainwater to ensure that mud and impurities are effectively removed and the rainwater contains almost no impurities before entering the collection box.
This improved the accuracy of rainwater detection, reduced errors, ensured that the collected rainwater was almost free of silt and other impurities, and enhanced the reliability of the experiment.
Smart Images

Figure CN223664326U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water quality sampling technology, and in particular to a rainwater collection device for sloping farmland. Background Technology
[0002] In agricultural non-point source pollution research projects, it is found that when sloping farmland is soaked by rainwater, the metal or fertility indicators in the soil change as the rainwater is washed away. This device uses PP film to line the perimeter of the sloping farmland and uses the elevation difference of the farmland to bury tanks at the lowest point to collect the rainwater flowing down, in order to analyze the impact of rainwater on sloping farmland.
[0003] Currently, the rainwater collected by operators still contains a large amount of mud, sand, and other impurities from the cultivated soil, which makes the analysis and testing of rainwater prone to errors and reduces the accuracy of the tests. Utility Model Content
[0004] The purpose of this invention is to provide a rainwater collection device for sloping farmland, which aims to solve the problem that the rainwater collected by operators still contains a large amount of mud, sand and other impurities from the soil, which makes the analysis and detection of rainwater prone to errors and reduces the accuracy of the detection.
[0005] To achieve the above objectives, this utility model provides a rainwater collection device for sloping farmland, comprising a slope, a PP membrane layer, a diversion channel, a filtration mechanism, a conduit, and a collection box. The filtration mechanism includes a mesh plate, two movable components, and two filter plates. The PP membrane layer is fixedly connected to the slope and located above the slope. The diversion channel is fixedly connected to the slope and located below the PP membrane layer. The filtration mechanism is disposed on the slope and the PP membrane layer. The two ends of the conduit are fixedly connected to and communicate with the diversion channel and the collection box, respectively. The mesh plate is fixedly connected to the PP membrane layer and located at one end of the PP membrane layer near the diversion channel. The two filter plates are disposed in the diversion channel through the two movable components and are located at both ends of the conduit.
[0006] The movable component includes a limiting post and a slider. The flow guide channel has two through slots. The limiting post is fixedly connected to the flow guide channel and is located in the through slots. The slider is slidably connected to the limiting post and extends into the flow guide channel. The filter plate is fixedly connected to the slider.
[0007] The moving component further includes a card block and a card slot. The card slot is disposed in the flow guide channel. The card block is fixedly connected to the filter plate and slidably connected to the flow guide channel, and is located in the card slot.
[0008] The filtering mechanism further includes a guide block, which is fixedly connected to the mesh plate and located above the mesh plate.
[0009] The rainwater collection device for sloping farmland also includes a transparent plate and a scale. The transparent plate is fixedly connected to one end of the collection box and passes through the collection box. The scale is fixedly connected to the collection box and is located on one side of the scale.
[0010] This invention relates to a rainwater collection device for sloping farmland. During the experiment, soil is covered on a PP film layer, and normal planting is carried out to simulate sloping farmland. When it rains, rainwater seeps into the soil and comes into contact with the PP film layer. The PP film layer guides the rainwater to a mesh plate, which holds the soil in place. The rainwater then flows through the mesh plate into a guide channel, where it flows towards the center. Two filter plates perform final filtration, removing residual silt and other impurities. The rainwater passing through the filter plates is then collected in a collection box via a conduit. The collected rainwater contains almost no silt or other impurities, reducing errors in rainwater detection and thus increasing the accuracy of the experiment. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0012] Figure 1 This is a schematic diagram of the surface rainwater collection device for sloping farmland according to this utility model.
[0013] Figure 2 This is a schematic diagram of the surface rainwater collection device for sloping farmland of this utility model from another perspective.
[0014] Figure 3 This is the utility model Figure 2 Enlarged view of the local structure at point A.
[0015] Figure 4 This is a front view of the rainwater collection device for sloping farmland according to this utility model.
[0016] 101-Slope, 102-PP membrane layer, 103-Mesh plate, 104-Guide block, 105-Guide channel, 106-Through channel, 107-Limiting post, 108-Slider, 109-Filter plate, 110-Card block, 111-Card slot, 112-Conduit, 113-Collection box, 114-Transparent plate, 115-Scale. Detailed Implementation
[0017] Please see Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the surface rainwater collection device for sloping farmland according to this utility model. Figure 2 This is a schematic diagram of the surface rainwater collection device for sloping farmland from another perspective. Figure 3 This is the utility model Figure 2 Enlarged view of the local structure at point A. Figure 4 This is a front view of the rainwater collection device for sloping farmland according to this utility model.
[0018] This utility model provides a rainwater collection device for sloping farmland, including a slope 101, a PP film layer 102, a guide channel 105, a filtration mechanism, a transparent plate 114, a scale 115, a guide tube 112, and a collection box 113. The filtration mechanism includes a mesh plate 103, a guide block 104, two moving components, and two filter plates 109. The moving components include a limiting post 107, a locking block 110, a locking groove 111, and a slider 108. The guide channel 105 has two through grooves 106. The aforementioned solution solves the problem that the rainwater collected by the operator still contains a large amount of mud, sand, and other impurities from the farmland, which leads to errors in the analysis and detection of rainwater and reduces the accuracy of the detection.
[0019] In this embodiment, the PP membrane layer 102 is fixedly connected to the slope 101 and located above the slope 101. The guide channel 105 is fixedly connected to the slope 101 and located below the PP membrane layer 102. The filtration mechanism is disposed on the slope 101 and the PP membrane layer 102. The two ends of the guide tube 112 are fixedly connected to the guide channel 105 and the collection box 113 respectively, and are in communication with each other. The mesh plate 103 is fixedly connected to the PP membrane layer 102 and located at one end of the PP membrane layer 102 near the guide channel 105. Two filter plates 109 are disposed in the guide channel 105 through two moving components and are located at both ends of the guide tube 112 respectively. During the experiment, soil is covered on the PP membrane layer 102. Normal planting is carried out to mimic planting on sloping farmland. When it rains, rainwater seeps into the soil and comes into contact with the PP film layer 102. The PP film layer 102 guides the rainwater into the soil to the mesh plate 103. The mesh plate 103 fixes the soil on the PP film layer 102, while the rainwater enters the guide channel 105 through the mesh plate 103. The rainwater in the guide channel 105 flows towards the center, and the two filter plates 109 perform final filtration of the rainwater, thereby filtering out residual mud and other impurities in the rainwater. The rainwater that has passed through the filter plates 109 is added to the collection box 113 through the conduit 112 for collection. The rainwater collected in the collection box 113 contains almost no mud or other impurities, reducing the error of rainwater detection and thus increasing the accuracy of the experiment.
[0020] Furthermore, the limiting post 107 is fixedly connected to the guide groove 105 and located in the through groove 106, the slider 108 is slidably connected to the limiting post 107 and extends into the guide groove 105, and the filter plate 109 is fixedly connected to the slider 108.
[0021] Furthermore, the slot 111 is disposed within the flow guide 105, the block 110 is fixedly connected to the filter plate 109, the block 110 is slidably connected to the flow guide 105, and is located within the slot 111.
[0022] In this embodiment, after the device collects rainwater for a long time, mud and other impurities will accumulate in the guide channel 105. When cleaning the impurities in the guide channel 105, the operator pushes the slider 108 outward. The slider 108 drives the filter plate 109 to move to one side of the guide channel 105, pushing out the impurities accumulated between the filter plate 109 and the guide channel 105. When the filter plate 109 moves, the locking block 110 slides in the locking groove 111. The locking block 110 and the locking groove 111 limit and guide the movement of the filter plate 109, preventing the filter plate 109 from being misaligned during movement, thereby increasing the structural stability of the device. The above operation is repeated to clean the other side of the guide channel 105 to ensure that rainwater can be collected normally.
[0023] Furthermore, the guide block 104 is fixedly connected to the mesh plate 103 and is located above the mesh plate 103.
[0024] In this embodiment, when it rains, rainwater seeps into the soil and comes into contact with the PP film layer 102. The PP film layer 102 guides the rainwater into the soil towards the mesh plate 103. The mesh plate 103 fixes the soil onto the PP film layer 102, while the rainwater enters the guide channel 105 through the mesh plate 103. The guide block 104 is designed to guide the flow, preventing rainwater with impurities from directly entering the guide channel 105 from directly above the conduit 112, which would cause the rainwater with impurities to directly enter the collection box 113. The guide block 104 can guide the water to both ends of the guide channel 105, and the rainwater will be filtered again through the filter plate 109, thereby increasing the accuracy of rainwater detection.
[0025] Furthermore, the transparent plate 114 is fixedly connected to one end of the collection box 113 and passes through the collection box 113, and the scale 115 is fixedly connected to the collection box 113 and is located on one side of the scale 115.
[0026] In this embodiment, the transparent plate 114 allows the operator to observe the water level in the collection box 113, and the scale 115 allows the operator to more intuitively know the volume of rainwater in the collection box 113, so as to facilitate the operator to detect the rainwater.
[0027] When using this invention to detect rainwater on sloping farmland, soil is covered on the PP film layer 102, and normal planting is carried out to simulate planting on sloping farmland. When it rains, rainwater seeps into the soil and comes into contact with the PP film layer 102. The PP film layer 102 guides the rainwater to the mesh plate 103, which fixes the soil on the PP film layer 102. The rainwater then flows through the mesh plate 103 into the guide channel 105, where it flows towards the center. The two filter plates 109 perform final filtration of the rainwater, thereby filtering out residual mud and other impurities. Rainwater passing through the filter plate 109 is collected in the collection box 113 via the conduit 112. The guide block 104 serves to guide the flow, preventing rainwater with impurities from directly entering the guide channel 105 from directly above the conduit 112, thus preventing the rainwater with impurities from directly entering the collection box 113. The guide block 104 directs the water to both ends of the guide channel 105, and the rainwater is filtered again by the filter plate 109. The rainwater collected in the collection box 113 contains almost no mud, sand, or other impurities, reducing the error in rainwater detection and thus increasing the accuracy of the experiment.
[0028] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments, and equivalent variations made in accordance with the claims of this application, still fall within the scope of this application.
Claims
1. A rainwater harvesting device for sloping farmland, characterized in that, The device includes a slope, a PP membrane layer, a flow channel, a filtration mechanism, a conduit, and a collection box. The filtration mechanism includes a screen, two moving components, and two filter plates. The PP membrane layer is fixedly connected to the slope and located above the slope. The flow channel is fixedly connected to the slope and located below the PP membrane layer. The filtration mechanism is disposed on the slope and the PP membrane layer. The two ends of the conduit are fixedly connected to the flow channel and the collection box, respectively, and are in communication with each other. The screen is fixedly connected to the PP membrane layer and located at one end of the PP membrane layer near the flow channel. The two filter plates are disposed in the flow channel through the two moving components and are located at the two ends of the conduit, respectively.
2. The rainwater harvesting device for sloping farmland as described in claim 1, characterized in that, The moving component includes a limiting post and a slider. The flow guide channel has two through slots. The limiting post is fixedly connected to the flow guide channel and is located in the through slots. The slider is slidably connected to the limiting post and extends into the flow guide channel. The filter plate is fixedly connected to the slider.
3. The rainwater harvesting device for sloping farmland as described in claim 2, characterized in that, The moving component also includes a card block and a card slot. The card slot is disposed in the flow guide channel. The card block is fixedly connected to the filter plate and slidably connected to the flow guide channel, and is located in the card slot.
4. The rainwater harvesting device for sloping farmland as described in claim 3, characterized in that, The filtration mechanism also includes a guide block, which is fixedly connected to the mesh plate and located above the mesh plate.
5. The rainwater harvesting device for sloping farmland as described in claim 4, characterized in that, The rainwater collection device for sloping farmland also includes a transparent plate and a scale. The transparent plate is fixedly connected to one end of the collection box and passes through the collection box. The scale is fixedly connected to the collection box and is located on one side of the scale.