Loess hilly area terrace facility with rainwater collection and utilization functions

Abstract

The utility model discloses a loess hilly area terrace facility with a rainwater collection and utilization function, and relates to the technical field of terraces, the loess hilly area terrace facility comprises a ridge, the ridge is arranged at the edge of the terrace, a water collection pool is formed in the position, close to the ridge, of the terrace, and water collection grooves are formed in the two sides of the top of the ridge and used for collecting rainwater into the water collection pool; a plurality of interception ridges are arranged on the terrace surface, the upper portions of the interception ridges are fixedly covered with a plastic mulching film, and a plurality of through grooves are formed in the top of the plastic mulching film; due to the arrangement of the interception ridge and the plastic mulching film, downward water seepage is guaranteed, sediment can be precipitated, soil on the lower portion is kept to have certain humidity, when rainwater is large, the rainwater can cross the interception ridge to flow outwards, the terraced field terrain close to the ridge is higher than the terraced field terrain on the inner side, a water body is in a reverse flow state when flowing outwards, the flow speed is further reduced, and the water quality is improved. And sediment is deposited.

Description

Technical Field

[0001] This invention relates to the field of terraced field technology, and in particular to terraced field facilities in the Loess Hilly Area with rainwater harvesting and utilization functions. Background Technology

[0002] Terraced fields in the Loess Hilly Area have played a significant role in soil and water conservation, promoting cultivation on gentle slopes and reducing soil erosion. However, their ability to utilize rainwater resources remains a significant weakness. The region's fragmented terrain and deep soil layers mean that traditional terraced fields are often built on natural slopes, resulting in narrow fields and low embankments, making it difficult to effectively retain natural rainfall.

[0003] During the rainy season, concentrated rainfall causes surface runoff to drain rapidly without forming effective storage. During the dry season, when crops are in critical need of water, there is a shortage of water resources. Existing rainwater harvesting facilities mostly adopt simple water storage tank structures, and the site selection and layout lack a systematic approach. The tank structure design does not fully consider the characteristics of high sediment content runoff in the region, resulting in widespread siltation. The siltation problem not only reduces the water storage capacity but also increases the cost of dredging and maintenance, affecting the sustainable operation of the facilities. There is a technical gap in the coordinated design of the terrace system and rainwater harvesting facilities. The field runoff guidance channels are incomplete, and the silt filtration mechanism is lacking, making it difficult to balance rainwater harvesting efficiency and water quality protection.

[0004] Therefore, it is necessary to provide terraced field facilities with rainwater harvesting and utilization functions in the Loess Hilly Area to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide terraced field facilities in the Loess hilly area with rainwater harvesting and utilization functions, so as to solve the problems of the prior art mentioned in the background art.

[0006] Based on the above ideas, the present invention provides the following technical solution: a terraced field facility in the Loess Hilly Area with rainwater collection and utilization function, including a large field ridge, the large field ridge is set at the edge of the terraced field, a water collection pool is opened near the large field ridge of the terraced field, and water collection troughs are set on both sides of the top of the large field ridge to collect rainwater into the water collection pool. Multiple intercepting ridges are set on the surface of the terraced field, and the upper part of the multiple intercepting ridges is covered and fixed with a plastic film, and multiple through grooves are opened on the top of the plastic film.

[0007] Collection components are installed on both sides of the inside of the water collection pool to intercept and collect sediment.

[0008] As a further aspect of the present invention: the bottom of the water collection trough is set as an inclined surface, with the lowest point on the side of the inclined surface closest to the field ridge, and multiple intercepting plates are fixedly connected to the bottom of the water collection trough.

[0009] As a further aspect of the present invention: the bottom of the water collection tank is provided with multiple grooves arranged along the inclined surface to intercept mud and sand layer by layer.

[0010] As a further aspect of the present invention: the collection component includes a collection frame, a fixing hook is fixedly connected to the outside of the collection frame, the fixing hook is hung on the upper part of the terrace, a receiving plate is provided on the top of the collection frame, and a filter screen for filtering mud and sand is fixedly connected to the top of the receiving plate.

[0011] As a further aspect of the present invention: two connecting blocks are provided on the side of the receiving plate near the filter screen. Both connecting blocks are rotatably connected to the receiving plate, and a telescopic rod and a spring are fixedly connected between the connecting blocks and the top of the collection frame, with the spring sleeved on the outside of the telescopic rod.

[0012] As a further embodiment of the present invention: two fixing plates are fixedly connected to the top of the collection frame. The two fixing plates are respectively disposed on both sides of the receiving plate, and a connecting shaft is fixedly connected to both sides of the receiving plate. A limiting groove is opened on the outer side of the fixing plate, and the connecting shaft extends into the limiting groove and slides in connection with the fixing plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. Set up a water collection trough near the ridge of the terraced field. Rainwater from the upper part of the terraced field and the right slope of the terraced field will enter the water collection trough and eventually enter the water collection pond to store and collect the rainwater. When irrigation is needed later, the rainwater can be used directly.

[0015] 2. The top of the plastic mulch film has multiple channels, i.e. openings, through which water seeps downwards and can also settle sediment, maintaining a certain level of moisture in the lower soil. When there is heavy rainfall, the water will flow outwards over the intercepting ridges. The terraced fields near the ridges are higher than the inner terraces, causing the water to flow outwards in a counter-current state, further reducing the flow velocity and allowing sediment to settle.

[0016] 3. At the same time, multiple grooves are opened on the inclined surface to intercept horizontally, and multiple interception plates are set to intercept vertically, further blocking the mud and sand.

[0017] 4. The receiving plate rotates and tilts around the connecting block, and the mud and sand on the top of the receiving plate and the filter screen will fall into the collection frame along the tilt, thereby achieving collection. Later, the personnel pull the collection frame to lift the whole thing and deal with the mud and sand, so as to prevent the bottom of the water collection pool from rising due to the increase of mud and sand. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2This is a schematic diagram of the interception embankment structure of the present invention;

[0021] Figure 3 This is the present invention. Figure 2 A schematic diagram of the structure of part A;

[0022] Figure 4 This is a schematic diagram of the structure of the collection component of the present invention;

[0023] Figure 5 This is the present invention. Figure 4 A schematic diagram of the B structure.

[0024] In the diagram: 1. Water collection tank; 2. Water collection trough; 202. Interception plate; 203. Groove; 3. Interception embankment; 4. Plastic mulch film; 5. Field embankment; 6. Collection frame; 601. Fixing hook; 7. Support plate; 701. Filter screen; 8. Fixing plate; 800. Connecting shaft; 801. Limiting groove; 803. Connecting block; 804. Telescopic rod; 805. Spring. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] like Figures 1 to 5 As shown, terraced field facilities in the Loess hilly area with rainwater harvesting and utilization functions include the following embodiments:

[0027] Example 1: As Figures 1 to 2 As shown, the terrace includes a large field ridge 5, which is located at the edge of the terrace. A water collection pool 1 is provided near the large field ridge 5, and water collection troughs 2 are provided on both sides of the top of the large field ridge 5 to collect rainwater into the water collection pool 1. Multiple intercepting ridges 3 are provided on the surface of the terrace, and plastic film 4 is fixedly covered on the top of the multiple intercepting ridges 3. Multiple through grooves, i.e., openings, are provided on the top of the plastic film 4. Water can seep downward through the openings, and sediment can also be deposited to maintain a certain level of moisture in the lower soil. When the rainfall is heavy, it will flow outwards over the intercepting ridges 3. Preferably, the terrain of the terrace near the large field ridge 5 is higher than that of the inner side, so that the water flows outwards in a counter-current state, further reducing the flow velocity and causing sediment to be deposited.

[0028] Collection components are installed on both sides of the inside of the water collection pool 1 to intercept and collect sediment.

[0029] In practice, this plan is applicable to improvements on existing terraced fields, especially for larger terraced fields.

[0030] By reinforcing and raising the existing paddy field ridge 5, water can be retained as much as possible. A slope of 1% is set from the base of the ridge to the inner side. It is worth noting that the slope should be 1%. A water collection trough 2 is set near the paddy field ridge 5. Rainwater from the upper part of the terrace and the right slope of the terrace enters the water collection trough 2 and finally enters the water collection pond 1 to store and collect the rainwater. When irrigation is needed later, it can be used directly.

[0031] Meanwhile, multiple intercepting ridges 3 are set up on the field surface. The height of the intercepting ridges 3 is about 10cm. A plastic film 4 is laid on the top of the intercepting ridges 3. When the water flows outward, on the one hand, the flow velocity is reduced due to the reverse slope, and the sediment settles. On the other hand, due to the gravity of the rainwater and sediment, when the water flows on the top of the plastic film 4, a wave-like shape will be formed between the multiple intercepting ridges 3. When the rainwater flows outward over the intercepting ridges 3, it encounters greater resistance, which further accelerates the sediment settling. At the same time, a channel is opened at the top of the plastic film 4. On the one hand, it is convenient to plant plants. On the other hand, when a large amount of water containing sediment passes through the upper plastic film 4, the water velocity decreases, the sediment settles, and the sediment can also enter the field surface through the channel. At the same time, the infiltrated water can also effectively replenish the soil moisture content.

[0032] Example 2: The bottom of the water collection trough 2 is set as an inclined surface, with the lowest point on the side of the inclined surface closest to the field ridge 5. Multiple intercepting plates 202 are fixedly connected to the bottom of the water collection trough 2.

[0033] The bottom of the water collection tank 2 has multiple grooves 203 arranged along the inclined surface to intercept mud and sand layer by layer.

[0034] In practice, when the mud and sand carrying rainwater flow into the water collection trough 2, the rainwater will flow at the bottom of the water collection trough 2. In this solution, the bottom of the water collection trough 2 is set as an inclined surface to increase the path of the mud and sand. At the same time, multiple grooves 203 are opened on the inclined surface to intercept the mud and sand horizontally. Multiple interception plates 202 are also set to intercept the mud and sand vertically.

[0035] Example 3: The collection component includes a collection frame 6, with a fixing hook 601 fixedly connected to the outside of the collection frame 6. The fixing hook 601 is hooked onto the upper part of the terrace. A receiving plate 7 is provided on the top of the collection frame 6, and a filter screen 701 for filtering mud and sand is fixedly connected to the top of the receiving plate 7.

[0036] Two connecting blocks 803 are provided on the side of the receiving plate 7 near the filter screen 701. Both connecting blocks 803 are rotatably connected to the receiving plate 7. A telescopic rod 804 and a spring 805 are fixedly connected between the connecting block 803 and the top of the collection frame 6. The spring 805 is sleeved on the outside of the telescopic rod 804.

[0037] The top of the collection box 6 is fixedly connected to two fixing plates 8. The two fixing plates 8 are respectively set on both sides of the receiving plate 7, and a connecting shaft 800 is fixedly connected to both sides of the receiving plate 7. A limiting groove 801 is opened on the outer side of the fixing plate 8, and the connecting shaft 800 extends into the limiting groove 801 and slides in connection with the fixing plate 8.

[0038] In practice, when rainwater enters the water collection tank 1 through the water collection trough 2, it falls on the top of the receiving plate 7. The top of the receiving plate 7 is set in an inclined shape. The rainwater is filtered through the filter screen 701 on the top of the receiving plate 7, and the mud and sand are further filtered. When the mud and sand collect to a certain weight, the receiving plate 7 will drop horizontally. The connecting shaft 800 fixedly connected to the outside of the receiving plate 7 slides along the limiting groove 801 opened on the outside of the fixed plate 8. When it slides to a certain extent, the lower end of the limiting groove 801 is arc-shaped. At this time, the receiving plate 7 rotates and tilts around the connecting block 803. Then, the mud and sand on the top of the receiving plate 7 and the filter screen 701 will fall into the collection frame 6 along the inclination, thereby achieving collection. Later, the personnel pull the collection frame 6 to lift the whole thing and process the mud and sand, so as to prevent the bottom of the water collection tank 1 from rising due to the increase of mud and sand.

[0039] During the dry season, water from the collection pond 1 is drawn to irrigate terraced crops and soil-stabilizing plants growing on the slopes.

[0040] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A terraced field facility in the Loess Hilly Area with rainwater harvesting and utilization function, comprising a large field ridge (5), wherein the large field ridge (5) is set at the edge of the terraced field, characterized in that, A water collection pool (1) is set up near the main field ridge (5) of the terraced field, and water collection troughs (2) are set up on both sides of the top of the main field ridge (5) to collect rainwater into the water collection pool (1). Multiple intercepting ridges (3) are set up on the surface of the terraced field, and plastic film (4) is fixed on the top of the multiple intercepting ridges (3), and multiple through grooves are opened on the top of the plastic film (4). The water collection pool (1) is equipped with collection components on both sides inside, which are used to intercept and collect sediment.

2. The terraced field facility in the loess hilly area with rainwater harvesting and utilization function according to claim 1, characterized in that: The bottom of the water collection trough (2) is set as an inclined surface, and the side of the inclined surface closest to the field ridge (5) is the lowest point. Multiple intercepting plates (202) are fixedly connected to the bottom of the water collection trough (2).

3. The terraced field facility in the loess hilly area with rainwater harvesting and utilization function according to claim 2, characterized in that: The water collection tank (2) has multiple grooves (203) at the bottom inside, which are arranged along the inclined surface to intercept mud and sand layer by layer.

4. The terraced field facility in the loess hilly area with rainwater harvesting and utilization function according to claim 1, characterized in that: The collection component includes a collection frame (6), a fixing hook (601) is fixedly connected to the outside of the collection frame (6), the fixing hook (601) is hooked to the upper part of the terrace, and a receiving plate (7) is provided on the top of the collection frame (6), and a filter screen (701) for filtering mud and sand is fixedly connected to the top of the receiving plate (7).

5. The terraced field facility in the loess hilly area with rainwater harvesting and utilization function according to claim 4, characterized in that: Two connecting blocks (803) are provided on the side of the receiving plate (7) near the filter screen (701). Both connecting blocks (803) are rotatably connected to the receiving plate (7). A telescopic rod (804) and a spring (805) are fixedly connected between the connecting block (803) and the top of the collection frame (6). The spring (805) is sleeved on the outside of the telescopic rod (804).

6. The terraced field facility in the loess hilly area with rainwater harvesting and utilization function according to claim 5, characterized in that: The top of the collection box (6) is fixedly connected to two fixing plates (8). The two fixing plates (8) are respectively set on both sides of the receiving plate (7), and both sides of the receiving plate (7) are fixedly connected to a connecting shaft (800). A limiting groove (801) is opened on the outside of the fixing plate (8). The connecting shaft (800) extends into the limiting groove (801) and slides in connection with the fixing plate (8).

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