Agricultural field water conservancy circulating irrigation and drainage device

Abstract

The utility model relates to the field of circulating irrigation and drainage device discloses a farmland water conservancy circulating irrigation and drainage device, including the bottom plate, the bottom plate upper surface fixedly connected with the water inlet box, the water inlet box inside fixedly connected with the filter screen no.

Description

Technical Field

[0001] This utility model relates to the field of circulating irrigation and drainage devices, and in particular to a circulating irrigation and drainage device for farmland water conservancy. Background Technology

[0002] The farmland water conservancy circulating irrigation and drainage system is a water conservancy device that combines drainage and flood control with water-saving irrigation functions. It achieves efficient utilization of farmland water resources through a closed-loop water circulation system. Its core is to recycle and treat excess water in farmland (such as rainfall and irrigation wastewater) and reuse it for irrigation, forming a "drainage-recycling-purification-re-irrigation" cycle, thereby improving water resource utilization and adapting to farmland environments with alternating droughts and floods.

[0003] A typical farmland irrigation and drainage system consists of a drainage system, a water collection and storage system, a water treatment system, and an irrigation system. The drainage system promptly removes excess water from the farmland, preventing crop waterlogging and soil salinization, while simultaneously channeling this water into a recycling system to reduce waste. The water collection and storage system temporarily stores the recycled water, balancing the time difference between drainage and irrigation, and also performs preliminary purification of the water to prepare it for subsequent treatment and irrigation. The water treatment system removes pollutants from the recycled water, ensuring its quality meets usage standards and preventing soil and crop contamination. The irrigation system efficiently and precisely delivers the purified water to the fields, providing appropriate water volumes based on crop type and growth stage, minimizing evaporation and seepage losses.

[0004] However, in existing farmland irrigation and drainage systems, the inlet of the water collection box increases with the increase of rainfall and the accumulation of rainwater inside. Then, the rainwater inside the collection box is evaporated by heat, causing the inlet to close. However, the evaporation time of the rainwater inside the collection box is relatively long, which easily leads to a large amount of impurities and bird droppings entering the irrigation and drainage system. This hinders the filtration and purification operation and causes the stored rainwater to be contaminated. Therefore, a new farmland irrigation and drainage system is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a farmland water conservancy circulating irrigation and drainage device, which aims to solve the problem in the prior art where the rainwater inside the water collection box evaporates for too long, resulting in the device inlet opening for too long and causing a large amount of impurities to enter the device.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a farmland irrigation and drainage system, comprising a base plate, an inlet tank fixedly connected to the upper surface of the base plate, a filter screen fixedly connected inside the inlet tank, a water delivery pipe fixedly connected to the bottom surface of the base plate, a filter screen fixedly connected inside the water delivery pipe, a water storage tank fixedly connected to the bottom end of the water delivery pipe, a water storage mechanism fixedly connected to the right side of the water storage tank, an inlet opening on the upper surface of the inlet tank, a sealing plate inserted inside the inlet, the top of the sealing plate being conical, and the sealing plate... A connecting frame is fixedly connected to the upper surface of the sealing plate. A limiting shell is fitted on the outer side of the connecting frame. Through slots are opened on both the left and right sides of the limiting shell. A support column is fixedly connected to the bottom surface of the limiting shell. The bottom end of the support column is fixedly connected to the upper surface of the base plate. A spring is fixedly connected to the bottom surface inside the limiting shell. A telescopic rod is fixedly connected to the bottom surface inside the limiting shell. Water baffles are provided on both the left and right sides of the limiting shell. The outer side of the connecting frame is fixedly connected to the water baffles. A water collection box is fixedly connected to the left surface of the support column. A drain outlet is opened on the bottom surface of the water collection box.

[0007] As a further description of the above technical solution:

[0008] A filter housing is provided above the water collection box. A second filter screen is fixedly connected inside the filter housing. A funnel is fixedly connected to the bottom of the filter housing. A connecting column is fixedly connected to the right side surface of the filter housing. A fixing block is fixedly connected to the outer wall of the supporting column. A sleeve is fixedly connected to the left side surface of the fixing block. The connecting column is detachably connected to the fixing block by bolts.

[0009] As a further description of the above technical solution:

[0010] The top surfaces of both the telescopic rod and the spring are fixedly connected to the bottom surface of the connecting frame.

[0011] As a further description of the above technical solution:

[0012] The telescopic rod is fitted inside the spring.

[0013] As a further description of the above technical solution:

[0014] The connecting frame passes through the through groove and is slidably connected to the inside of the through groove.

[0015] As a further description of the above technical solution:

[0016] The connecting post is inserted into the sleeve.

[0017] As a further description of the above technical solution:

[0018] The filter housing is adapted to the size of the water collection box, the funnel is located inside the water collection box, and the bottom surface of the filter housing is in contact with the upper surface of the water collection box.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the limiting housing is in contact with the side of the water baffle plate closest to the spring.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, through the cooperation between the connecting frame, limiting shell, support column, spring, telescopic rod, baffle plate, through groove, water collection box and drain, in the case of heavy rain, as the amount of precipitation increases and the amount of rainwater inside the water collection box increases, the water inlet increases, which facilitates the collection of rainwater. When the rain becomes less or stops, the rainwater inside the water collection box flows out from the drain, which makes the water inlet close quickly and reduces the amount of impurities entering the irrigation and drainage device.

[0023] 2. In this utility model, the cooperation between the filter housing, filter screen II, funnel, connecting column, fixing block, sleeve and bolts greatly reduces the amount of impurities and bird droppings entering the water collection box, ensuring a certain weight for the water collection box and preventing the filter housing from causing the water collection box to shift downwards in the absence of rain or light rain due to its own weight, thereby preventing the entry of impurities. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a farmland water conservancy circulating irrigation and drainage device proposed in this utility model;

[0025] Figure 2 This is a partial cross-sectional view of the inlet tank of a farmland water conservancy circulating irrigation and drainage device proposed in this utility model;

[0026] Figure 3 This is a cross-sectional schematic diagram of the connecting frame of a farmland water conservancy circulating irrigation and drainage device proposed in this utility model;

[0027] Figure 4 This is a cross-sectional schematic diagram of the water collection box and filter housing of a farmland water conservancy circulating irrigation and drainage device proposed in this utility model;

[0028] Figure 5 This is a partial cross-sectional view of the limiting shell of a farmland water conservancy circulating irrigation and drainage device proposed in this utility model.

[0029] Legend:

[0030] 1. Base plate; 2. Water inlet tank; 3. Filter screen one; 4. Water supply pipe; 5. Filter screen; 6. Water storage tank; 7. Water storage mechanism; 8. Water inlet; 9. Sealing plate; 10. Connecting frame; 11. Limiting housing; 12. Support column; 13. Spring; 14. Telescopic rod; 15. Water baffle; 16. Water collection box; 17. Water outlet; 18. Filter housing; 19. Filter screen two; 20. Funnel; 21. Connecting column; 22. Fixing block; 23. Sleeve; 24. Bolt; 25. Through groove. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 and Figure 2 This utility model provides a farmland water conservancy circulating irrigation and drainage device, including a base plate 1, an inlet tank 2 fixedly connected to the upper surface of the base plate 1, a filter screen 3 fixedly connected inside the inlet tank 2, an inspection port on the front of the inlet tank 2, a sealing door hinged to the inspection port, and a matching locking and sealing element on the sealing door. The sealing door can block and seal the inspection port. When it is necessary to inspect and clean the inside of the inlet tank 2, the sealing door can be opened directly. A water supply pipe 4 is fixedly connected to the bottom surface of the base plate 1, a filter screen 5 is fixedly connected inside the water supply pipe 4, and a water storage tank 6 is fixedly connected to the bottom end of the water supply pipe 4. The water supply pipe 4 and the water storage tank 6 are connected by a pipe. When it is raining lightly, rainwater flows through the underground ditch in the farmland to the water supply pipe 4. When it enters the inside of the water supply pipe 4, the filter screen 5 will filter the rainwater to prevent the rainwater from carrying impurities into the water storage tank 6.

[0033] A water storage mechanism 7 is fixedly connected to the right side of the water storage tank 6. The water storage mechanism 7 stores the filtered rainwater. When irrigation is needed, the valve is opened first, and then the rainwater inside the water storage mechanism 7 is pumped out for irrigation by the water pumping equipment. The upper surface of the water inlet tank 2 is provided with a water inlet 8. The water inlet tank 2 and the water storage tank 6 are connected by a pipe. When it rains heavily, the rainwater enters the water inlet tank 2 from the opening of the water inlet 8. Then the filter screen 3 can filter the incoming rainwater. The filtered rainwater flows into the water storage tank 6 through the pipe between the water inlet tank 2 and the water storage tank 6, and finally flows from the water storage tank 6 to the water storage mechanism 7, which provides convenience for subsequent storage and irrigation.

[0034] Reference Figures 3-5A sealing plate 9 is inserted inside the inlet 8. The top of the sealing plate 9 is conical. A connecting frame 10 is fixedly connected to the upper surface of the sealing plate 9. A limiting shell 11 is fitted on the outside of the connecting frame 10. The limiting shell 11 has through grooves 25 on both sides. The connecting frame 10 passes through the through grooves 25 and is slidably connected to the through grooves 25. A support column 12 is fixedly connected to the bottom surface of the limiting shell 11. The bottom end of the support column 12 is fixedly connected to the upper surface of the base plate 1. The support column 12 supports the limiting shell 11 and ensures that the connecting frame 10 is stable when sliding along the through grooves 25. A spring 13 is fixedly connected to the bottom surface inside the limiting shell 11. A telescopic rod 14 is fixedly connected to the bottom surface inside the limiting shell 11. The telescopic rod 14 is fitted inside the spring 13. Spring 13 acts as a limiter, ensuring that it does not deviate significantly when subjected to downward pressure, thus affecting the use of the device. The top surfaces of telescopic rod 14 and spring 13 are fixedly connected to the bottom surface of connecting frame 10. Water baffles 15 are provided on both sides of limiting housing 11. The outer wall of limiting housing 11 and the side of water baffle 15 closest to spring 13 are in contact with each other. When connecting frame 10 slides up and down along through groove 25, water baffle 15 moves with connecting frame 10 to seal through groove 25, preventing rainwater from entering the interior of limiting housing 11 through through groove 25 and causing corrosion to telescopic rod 14 and spring 13. The outer side of connecting frame 10 is fixedly connected to water baffle 15. A water collection box 16 is fixedly connected to the left surface of support column 12. A drain outlet 17 is provided on the bottom surface of water collection box 16.

[0035] During heavy rain, as the rainfall increases, the amount of rainwater entering exceeds the amount exiting from the drain outlet 17. This increases the amount of rainwater inside the collection box 16, causing the sealing plate 9 to move downwards. As the collection box 16 and sealing plate 9 move downwards, the connecting frame 10 slides down along the through groove 25, compressing the telescopic rod 14 and spring 13. This compression of spring 13 generates elastic potential energy, increasing the opening of the inlet 8 and facilitating the collection of large amounts of rainwater. When the rainfall begins to decrease, the rainwater inside the collection box 16 leaks out through the drain outlet 17, reducing its weight. At this time, spring 13 gradually returns to its original shape, causing the collection box 16 and sealing plate 9 to automatically reset under the elastic potential energy of spring 13. This reduces the opening of the inlet 8, decreasing the entry of impurities and bird droppings.

[0036] Reference Figures 3-5A filter housing 18 is installed above the water collection box 16. A second filter screen 19 is fixedly connected inside the filter housing 18. A funnel 20 is fixedly connected to the bottom of the filter housing 18. The filter housing 18 is adapted to the size of the water collection box 16. The funnel 20 is located inside the water collection box 16. The bottom surface of the filter housing 18 is in contact with the upper surface of the water collection box 16. Sand and gravel can be filled above the second filter screen 19 to form a sand and gravel layer to filter the rainwater entering the water collection box 16. The filtered rainwater enters the water collection box 16 through the funnel 20, preventing dust and impurities from entering the water collection box 16 and accumulating, which would affect the use of the device. A connecting column 21 is fixedly connected to the right surface of the filter housing 18. A fixing block 22 is fixedly connected to the outer wall of the support column 12. A sleeve 23 is fixedly connected to the left surface of the fixing block 22. The connecting column 21 is inserted into the sleeve 23. The sleeve 23 limits the connecting column 21, so that the filter housing 18 can be in a stable state.

[0037] The connecting column 21 is detachably connected to the fixing block 22 by bolts 24, so that the weight of the filter housing 18 will not be transmitted to the water collection box 16. This avoids the filter housing 18's own weight and impurities accumulating on the sand and gravel layer of the filter housing 18, which would cause the filter housing 18 to press down and drive the water collection box 16 to move down, thereby increasing the opening of the water inlet 8. This allows impurities and bird droppings to enter the water inlet tank 2 through the water inlet 8. At the same time, the filter housing 18 can be detachably connected by bolts 24, which facilitates the cleaning and replacement of the filter housing 18 and the sand and gravel layer on top of it.

[0038] Working principle: During light rain, due to the scarcity of precipitation and the presence of the drain 17, the rainwater flowing into the water collection box 16 will flow out along the drain 17, keeping the opening of the inlet 8 closed. This allows the amount of rainwater in the culvert to increase with the amount of precipitation. At this time, the rainwater in the culvert will flow to the water pipe 4, and after being filtered by the filter screen 5, it will enter the water storage tank 6, and then enter the water storage mechanism 7.

[0039] During heavy rain, rainwater enters the collection box 16 after being filtered through the sand and gravel layer and filter screen 19. Since the amount of rainwater entering the collection box 16 is much greater than the amount flowing out of the drain outlet 17, the increased amount of rainwater inside the collection box 16 increases its overall weight. At this time, the collection box 16 causes the connecting frame 10 and the baffle plate 15 to move downwards, compressing the spring 13 and the telescopic rod 14. This causes the spring 13 to deform, which in turn moves the sealing plate 9 downwards, entering the inlet tank 2 and opening the inlet 8. This gradually enlarges the opening of the inlet 8, allowing for better rainwater collection. When the rainfall begins to decrease, the amount of rainwater flowing out of the drain outlet 17... When the amount of rainwater entering the water collection box 16 is greater than the amount of rainwater inside, the amount of rainwater inside the water collection box 16 decreases, the overall weight decreases, the water collection box 16 drives the connecting frame 10 and the baffle plate 15 to reset, the spring 13 restores its deformation, and then simultaneously drives the sealing plate 9 to reset, so that the opening of the water inlet 8 gradually becomes smaller, which can seal the opening of the water inlet 8 in time, reduce the entry of impurities and bird droppings, and ensure a certain purity of the rainwater inside. The rainwater entering through the water inlet 8 will reach the filter screen 3 for filtration, and then enter the water storage tank 6 through the pipe connecting the water inlet tank 2 and the water storage tank 6, and then enter the water storage mechanism 7 for storage, which is convenient for later extraction and irrigation.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A farmland irrigation and drainage system, comprising a base plate (1), characterized in that: A water inlet tank (2) is fixedly connected to the upper surface of the base plate (1). A filter screen (3) is fixedly connected inside the water inlet tank (2). A water supply pipe (4) is fixedly connected to the bottom surface of the base plate (1). A filter screen (5) is fixedly connected inside the water supply pipe (4). A water storage tank (6) is fixedly connected to the bottom end of the water supply pipe (4). A water storage mechanism (7) is fixedly connected to the right side of the water storage tank (6). A water inlet (8) is opened on the upper surface of the water inlet tank (2). A sealing plate (9) is inserted into the water inlet (8). The top of the sealing plate (9) is conical. A connecting frame (10) is fixedly connected to the upper surface of the sealing plate (9). A limiting shell is sleeved on the outside of the connecting frame (10). The body (11) has through slots (25) on both the left and right sides. A support column (12) is fixedly connected to the bottom surface of the limiting housing (11). The bottom end of the support column (12) is fixedly connected to the upper surface of the base plate (1). A spring (13) is fixedly connected to the bottom surface inside the limiting housing (11). A telescopic rod (14) is fixedly connected to the bottom surface inside the limiting housing (11). Water baffles (15) are provided on both the left and right sides of the limiting housing (11). The outer side of the connecting frame (10) is fixedly connected to the water baffle (15). A water collection box (16) is fixedly connected to the left side surface of the support column (12). A water outlet (17) is provided on the bottom surface of the water collection box (16).

2. The farmland irrigation and drainage system according to claim 1, characterized in that: A filter housing (18) is provided above the water collection box (16). A filter screen (19) is fixedly connected inside the filter housing (18). A funnel (20) is fixedly connected to the bottom of the filter housing (18). A connecting column (21) is fixedly connected to the right side surface of the filter housing (18). A fixing block (22) is fixedly connected to the outer wall of the support column (12). A sleeve (23) is fixedly connected to the left side surface of the fixing block (22). The connecting column (21) is detachably connected to the fixing block (22) by bolts (24).

3. The farmland irrigation and drainage system according to claim 1, characterized in that: The top surfaces of the telescopic rod (14) and the spring (13) are fixedly connected to the bottom surface of the connecting frame (10).

4. The farmland irrigation and drainage system according to claim 1, characterized in that: The telescopic rod (14) is sleeved inside the spring (13).

5. The farmland irrigation and drainage system according to claim 1, characterized in that: The connecting frame (10) passes through the through groove (25), and the connecting frame (10) is slidably connected to the inside of the through groove (25).

6. The farmland irrigation and drainage system according to claim 2, characterized in that: The connecting post (21) is inserted into the sleeve (23).

7. The farmland irrigation and drainage system according to claim 2, characterized in that: The filter housing (18) is adapted to the size of the water collection box (16), the funnel (20) is located inside the water collection box (16), and the bottom surface of the filter housing (18) is in contact with the upper surface of the water collection box (16).

8. The farmland irrigation and drainage system according to claim 1, characterized in that: The outer wall of the limiting housing (11) is in contact with the side of the water baffle (15) near the spring (13).

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