Paddy field irrigation and drainage full-automatic control device
By adopting a ring-shaped gap structure between the central water pipe and the drainage pipe in the paddy field irrigation device, combined with water inlet filtration and floating water-blocking structure, the problems of easy blockage and erosion of paddy field ridges in existing technologies are solved, and mechanical control of uniform water flow and efficient drainage is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-03
AI Technical Summary
Existing paddy field irrigation and drainage systems suffer from problems such as electronic equipment being difficult to apply in remote farmland, being easily clogged by mud, sand and weeds, high cost, poor anti-interference ability, and easy erosion of field ridges by drainage.
It adopts a ring-shaped gap structure between the central water pipe and the drainage pipe, combined with water inlet filtration, floating water-blocking structure and inclined plate adjustment, to achieve water flow stratification control and smooth drainage. It utilizes mechanical structure to adapt to the non-electric environment and has filtration and regulation functions.
It achieves uniform and dispersed irrigation, avoids erosion of field ridges, lowers the threshold for equipment use, and ensures stable operation and efficient drainage of the equipment in the absence of electricity.
Smart Images
Figure CN224078336U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of paddy field drainage technology, and in particular to a fully automatic control device for paddy field irrigation and drainage. Background Technology
[0002] Common paddy field irrigation and drainage devices often rely on electronic sensors or complex valves for control, or involve manually digging ditches for drainage, which are then sealed off as needed. The use of electronic sensors and similar devices requires a stable power supply, making them unsuitable for remote farmland. Furthermore, simple drainage structures, such as pipes or canals, are easily clogged by mud, sand, and weeds, requiring frequent cleaning. Drainage also erodes the field ridges, and direct discharge from the drainage outlet can easily damage the ridge structure. Existing solutions using drainage pipes lack anti-clogging and drainage regulation functions. Using electronic water level gauges linked to water pumps suffers from high costs and poor anti-interference capabilities. Therefore, a solution is urgently needed that controls drainage by water level while preventing water flow from eroding the field ridges. Thus, a fully automatic control device for paddy field irrigation and drainage is proposed. Utility Model Content
[0003] The purpose of this utility model is to address the deficiencies in the existing technology by proposing a fully automatic control device for paddy field irrigation and drainage.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] An automatic control device for irrigation and drainage of paddy fields includes: a central water pipe, a water inlet filter structure that cooperates with the top of the central water pipe, a drain pipe that is coaxially sleeved in the middle of the interior of the central water pipe and forms an annular gap with the central water pipe, a vertical drain hole group on the drain pipe, and a floating water-blocking structure that cooperates with the top of the drain pipe.
[0006] The mounting bracket is fixed to the bottom of the central water pipe. The bottom of the mounting bracket is provided with an inclined plate. The inclined plate is adjusted by a rotating shaft to guide the direction of water flow.
[0007] Furthermore, the water inlet filtration structure includes a funnel-shaped inlet and a double-layer filter screen, which are used to intercept debris and guide external water sources into the annular gap.
[0008] Furthermore, the vertical drainage hole group includes a plurality of drainage holes distributed along the height direction of the outer wall of the drainage pipe, and each drainage hole is connected to external drainage through a pipe;
[0009] An inclined inlet sleeve is fixed to the inner wall of the drain pipe, and its end near the inner wall of the central water pipe gradually expands to form a guide port.
[0010] Furthermore, the bottom end of the inclined water inlet sleeve is provided with a rotating brush, which is connected to the inner wall of the drain pipe through a brush shaft, and the rotating brush is in close contact with the inner wall of the drain pipe.
[0011] Furthermore, the inclined water inlet sleeve is inclined and tapers at one end near the inner wall of the drain pipe, while the other end is the flow guide, and the edge of the flow guide is provided with serrated flow guide patterns.
[0012] Furthermore, the floating water-blocking structure includes a floating ball and a water-blocking plate connected to the floating ball, wherein the water-blocking plate is driven downward by water pressure to cover or expose the drainage hole;
[0013] The floating water-blocking structure is provided with a limiting strip below it, which passes through the drain pipe and the central water pipe and extends to the outside of the central water pipe.
[0014] Furthermore, the water inlet filtration structure includes: a funnel-shaped water inlet, a connecting frame that cooperates with the central water pipe is provided below the funnel-shaped water inlet, and a pull-out filter basket is provided inside the connecting frame.
[0015] Furthermore, the water-blocking plate of the floating water-blocking structure is an arc-shaped rubber plate, the curvature of which matches the outer wall of the drain pipe, and the floating ball is a hollow stainless steel ball, which is connected to the water-blocking plate through a connecting rod.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] The annular gap between the central water pipe and the drainage pipe enables stratified water flow control. During irrigation, the water source is evenly distributed, and during drainage, the water flow can be discharged in stages through vertical drainage holes to avoid concentrated scouring of the field ridges. The inclined plate installed at the bottom can be adjusted by a rotating shaft to guide the drainage water flow smoothly into the ditch, protecting the field ridge structure. The pipe can be used for both irrigation water intake and drainage. The water intake pressure distinguishes between water intake and drainage. When the water intake pressure decreases or stops, full drainage is used to control the water level drop until the appropriate position is reached. During this period, the floating ball matches the water depth requirements of different stages of rice growth, such as tillering and heading stages, according to water level changes. The purely mechanical structure is suitable for environments without electricity, lowering the threshold for use, and has a modular filtration structure to ensure long-term stable operation of the equipment. Attached Figure Description
[0018] The accompanying drawings are provided to further understand 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 and do not constitute a limitation thereof.
[0019] Figure 1This is a schematic diagram of the overall structure of the fully automatic control device for paddy field irrigation and drainage proposed in this utility model.
[0020] Figure 2 This is a cross-sectional view of the fully automatic control device for paddy field irrigation and drainage proposed in this utility model;
[0021] Figure 3 This is a schematic diagram of the water inlet filter structure of the fully automatic control device for paddy field irrigation and drainage proposed in this utility model.
[0022] Figure 4 This is a schematic diagram of the inclined water inlet sleeve of the fully automatic control device for paddy field irrigation and drainage proposed in this utility model.
[0023] In the picture:
[0024] 1. Central water pipe; 2. Drain pipe; 3. Annular gap; 4. Inlet filtration structure; 41. Funnel-shaped inlet; 42. Double-layer filter screen; 43. Pull-out filter basket; 5. Vertical drain hole group; 51. Drain hole; 6. Inclined inlet sleeve; 61. Flow guide; 62. Serrated flow guide pattern; 7. Rotating brush; 71. Brush shaft; 8. Floating water-blocking structure; 81. Floating ball; 82. Water-blocking plate; 83. Connecting rod; 9. Restriction strip; 10. Mounting bracket; 11. Inclined plate; 12. Shaft. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0027] Reference Figure 1-4 The fully automatic control device for paddy field irrigation and drainage includes:
[0028] The central water pipe (1) is vertically installed inside the paddy field ridge;
[0029] A drain pipe (2) is coaxially sleeved in the middle of the interior of the central water pipe (1), and an annular gap (3) is formed between the drain pipe and the central water pipe (1). The drain pipe is provided with a vertical drain hole group (5), and the top of the drain pipe is provided with a floating water-blocking structure (8) that cooperates with it.
[0030] The mounting bracket (10) is fixed to the bottom of the central water pipe (1). The bottom of the bracket is provided with an inclined plate (11). The inclined plate (11) is adjusted by a rotating shaft (12) to guide the direction of water flow. In a specific implementation, the central water pipe (1) is vertically embedded into the paddy field ridge. Its bottom end is fixed to the ground by the mounting bracket (10). The bottom inclined plate (11) is adjusted by a rotating shaft (12) to be aligned with the direction of the drainage ditch. The drainage pipe (2) is coaxially inserted inside the central water pipe (1), forming an annular gap (3) between the two. During irrigation, external water flows into the paddy field from the annular gap (3). After the water level rises, the water flows out through the vertical drainage hole group (5) on the drainage pipe (2). The inclined plate (11) is adjusted by a rotating shaft (12) to control the direction of drainage water flow and avoid directly scouring the ridge.
[0031] The water inlet filtration structure (4) includes a funnel-shaped inlet (41) and a double-layer filter screen (42) for intercepting debris and guiding external water sources into the annular gap (3).
[0032] The water inlet filtration structure (4) includes:
[0033] The funnel-shaped inlet (41) is covered with an outer layer of iron wire mesh and an inner layer of nylon mesh;
[0034] A pull-out filter basket (43) is installed below the funnel-shaped inlet (41) to collect large particles of debris. In one specific implementation, a funnel-shaped inlet (41) is installed at the top of the central water pipe (1), with an outer layer of iron wire mesh and an inner layer of nylon mesh wrapped around it. A pull-out filter basket (43) is inserted below the funnel-shaped inlet (41) to intercept large particles of debris such as leaves and snails. External water flows in through the funnel-shaped inlet (41), and the double-layer filter screen filters debris step by step. The filter basket (43) can be pulled out and cleaned regularly.
[0035] The vertical drainage hole group (5) includes a plurality of drainage holes (51) distributed along the height direction of the outer wall of the drainage pipe (2), and each drainage hole (51) is connected to external drainage through a pipe;
[0036] An inclined inlet sleeve (6) is fixed to the inner wall of the drain pipe (2), and its end near the inner wall of the central water pipe (1) gradually expands to form a guide port (61);
[0037] The bottom end of the inclined water inlet sleeve (6) is provided with a rotating brush (7), which is connected to the inner wall of the drain pipe (2) through a brush shaft 71, and the brush is in close contact with the inner wall of the drain pipe (2).
[0038] The inclined water inlet sleeve (6) is inclined and tapers at one end near the inner wall of the drain pipe, while the other end is a guide port (61). The edge of the guide port (61) is provided with a sawtooth guide pattern (62). In a specific implementation, multiple drain holes (51) are vertically opened on the outer wall of the drain pipe (2). Each drain hole (51) is connected to an independent drain hose. The inclined water inlet sleeve (6) is fixed on the inner wall of the drain pipe (2). Its guide port (61) tapers to the inner wall of the central water pipe (1). At the same time, the edge is provided with a sawtooth guide pattern (62). When water enters, the water flows out from the bottom. Due to the water pressure, it will also rush into the drain pipe (2) at high speed from the taper structure of the guide port (61), pushing the brush to rotate. The brush scrapes away impurities or adhesions on the inner wall. The sawtooth guide pattern (62) enhances the impact force of the water flow.
[0039] The floating water-blocking structure (8) includes a floating ball (81) and a water-blocking plate (82) connected to the floating ball (81). The water-blocking plate (82) is driven by water pressure to move downward to cover or expose the drain hole (51).
[0040] A limiting strip (9) is provided below the floating water-blocking structure (8) to cooperate with it. The limiting strip (9) passes through the drain pipe (2) and the central water pipe (1), and extends to the outer wall of the central water pipe (1) to limit the maximum downward movement distance of the floating water-blocking structure (8). In this embodiment, the limiting strip (9) is a metal rod with scale markings. One end of the rod is fixed to the top of the drain pipe (2), and the other end passes through the central water pipe (1) and protrudes from the surface of the field ridge. The position is locked by a nut.
[0041] The water baffle (82) of the floating water baffle structure (8) is an arc-shaped rubber plate, the curvature of which matches the outer wall of the drain pipe (2). The floating ball (81) is a hollow stainless steel ball, which is hinged to the water baffle (82) by the connecting rod (83). In a specific implementation, a hollow stainless steel floating ball (81) is installed on the top of the drain pipe (2), and the arc-shaped rubber water baffle (82) is hinged by the connecting rod (83). When the water level rises, if the buoyancy is greater than the pressure when the water enters, the floating ball (81) floats up, more drain holes (51) are exposed, and the drainage volume increases. At the same time, because the top has a downward pressure, the drainage speed at the drain hole (51) can be increased, and the drainage efficiency can be effectively improved. In addition, if the buoyancy is less than the pressure when the water enters, the drainage speed will be kept at the drainage position limited by the limiting strip (9). When the water level is too high, the position of the floating ball (81) is blocked by the limiting strip (9), and the drainage hole (51) at the corresponding position is opened to allow for rapid drainage.
[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A fully automatic control device for paddy field irrigation and drainage, characterized in that, Includes: a central water pipe (1), the top of the central water pipe (1) is provided with a water inlet filter structure (4) that cooperates with it, a drain pipe (2) is coaxially sleeved in the middle position inside the central water pipe (1) and forms an annular gap (3) between it and the central water pipe (1), the drain pipe (2) is provided with a vertical drain hole group (5), and the top of the drain pipe (2) is provided with a floating water blocking structure (8) that cooperates with it; The mounting bracket (10) is fixed to the bottom of the central water pipe (1). The bottom of the mounting bracket (10) is provided with an inclined plate (11). The inclined plate (11) is adjusted by a rotating shaft (12) to guide the direction of water flow.
2. The fully automatic control device for paddy field irrigation and drainage according to claim 1, characterized in that: The water inlet filtration structure (4) includes a funnel-shaped inlet (41) and a double-layer filter screen (42) for intercepting debris and guiding external water sources into the annular gap (3).
3. The fully automatic control device for paddy field irrigation and drainage according to claim 2, characterized in that: The vertical drainage hole group (5) includes a plurality of drainage holes (51) distributed along the height direction of the outer wall of the drainage pipe (2), and each drainage hole (51) is connected to external drainage through a pipe; An inclined inlet sleeve (6) is fixed to the inner wall of the drain pipe (2), and its end near the inner wall of the central water pipe (1) gradually expands to form a guide port (61).
4. The fully automatic control device for paddy field irrigation and drainage according to claim 3, characterized in that: The bottom end of the inclined water inlet sleeve (6) is provided with a rotating brush (7). The rotating brush (7) is connected to the inner wall of the drain pipe (2) through a brush shaft (71). The rotating brush (7) is in close contact with the inner wall of the drain pipe (2).
5. The fully automatic control device for paddy field irrigation and drainage according to claim 4, characterized in that: The inclined water inlet sleeve (6) is inclined and tapers at one end near the inner wall of the drain pipe (2), while the other end is the guide port (61). The edge of the guide port (61) is provided with serrated guide patterns (62).
6. The fully automatic control device for paddy field irrigation and drainage according to claim 5, characterized in that: The floating water-blocking structure (8) includes a floating ball (81) and a water-blocking plate (82) connected to the floating ball (81). The water-blocking plate (82) is driven by water pressure to move downward to cover or expose the drain hole (51). The floating water-blocking structure (8) is provided with a limiting strip (9) that works with it. The limiting strip (9) passes through the drain pipe (2) and the central water pipe (1) and extends to the outside of the central water pipe (1).
7. The fully automatic control device for paddy field irrigation and drainage according to claim 6, characterized in that: The water inlet filtration structure (4) includes: a funnel-shaped water inlet (41), and a connecting frame that cooperates with the central water pipe (1) is provided below the funnel-shaped water inlet (41). A pull-out filter basket (43) is provided inside the connecting frame.
8. The fully automatic control device for paddy field irrigation and drainage according to claim 7, characterized in that: The water-blocking plate (82) of the floating water-blocking structure (8) is an arc-shaped rubber plate, the curvature of which matches the outer wall of the drain pipe (2). The floating ball (81) is a hollow stainless steel ball, which is connected to the water-blocking plate (82) through a connecting rod (83).