Valve group for paddy field irrigation system

Abstract

The utility model relates to the field of farm irrigation, and discloses a valve group for a paddy field irrigation system, which comprises a communication pipeline, a water supply tank, a water discharge tank and a paddy field, control assemblies for controlling the water supply stand columns to be opened and closed are installed in the water supply tank and the water drainage tank, a water supplementing pipe is communicated between the water supply tank and the paddy field, a water return pipe is communicated between the water drainage tank and the paddy field, and the water supplementing pipe is higher than the bottom face of the paddy field in the horizontal direction. The water return pipe is lower than or flush with the bottom face of the paddy field in the horizontal direction, and safety covers capable of being opened are arranged on the inner top wall of the water supply tank and the inner top wall of the water drainage tank. The utility model has the following advantages and effects: water feeding and water discharging of the paddy field are realized by utilizing the height difference of water pressure, the pressure intensity of water flow in the pipeline is low, the impact force on the valve group is small, the abrasion degree of the valve group is low, the maintenance is convenient, and the maintenance cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of farmland irrigation, in particular to a valve group for a paddy field irrigation system. Background Art

[0002] Irrigation of paddy fields is a very important part in the process of rice cultivation. Reasonable irrigation management can significantly improve the yield and quality of rice. The irrigation management of paddy fields needs to be adjusted according to specific geographical, climatic and water resource conditions to achieve efficient and sustainable agricultural production.

[0003] In the existing paddy field irrigation, high-pressure pipelines can be used for irrigation, and high-pressure valves are used to control the opening and closing of the high-pressure pipelines to achieve the irrigation of paddy fields. The water flow pressure inside the high-pressure pipelines is high, which has a great impact on the high-pressure valves. The high-pressure valves wear quickly and the maintenance cost is high. For the above reasons, we propose a valve group for a paddy field irrigation system. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a valve group for a paddy field irrigation system, which has the effects of low cost and convenient maintenance.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: A valve group for a paddy field irrigation system includes a communication pipeline, a water supply tank, a drainage tank and a paddy field. The communication pipeline is communicated with the water supply tank and the drainage tank through a water supply column. Control components for controlling the opening and closing of the water supply column are installed inside both the water supply tank and the drainage tank. A water replenishing pipe is communicated between the water supply tank and the paddy field, and a water return pipe is communicated between the drainage tank and the paddy field. The water replenishing pipe is higher than the bottom surface of the paddy field in the horizontal direction, and the water return pipe is lower than the bottom surface of the paddy field or flush with it in the horizontal direction.

[0006] By adopting the above technical solutions, when irrigating the paddy field, the control component controls the water supply column in the water supply tank to open and the water supply column in the drainage tank to close. The water in the communication pipeline enters the water supply tank through the water supply column. The water flow flows into the paddy field for irrigation relying on the height difference between the water replenishing pipe and the bottom surface of the paddy field. When it is necessary to dry the paddy field, the control component controls the water supply column in the drainage tank to open and the water supply column in the water supply tank to close. The water flow flows out of the paddy field relying on the height difference between the water return pipe and the bottom surface of the paddy field and returns to the communication pipeline through the water supply column. The water intake and drainage of the paddy field are realized by using the height difference of water pressure. The water flow pressure inside the pipeline is low, the impact on the valve group is small, the wear degree of the valve group is low, it is convenient to maintain and the maintenance cost is low.

[0007] The further setting of the utility model is that safety covers that can be opened are provided on the inner top walls of both the water supply tank and the drainage tank.

[0008] By adopting the above technical solution, the setting of the safety cover facilitates opening the water supply tank and the drainage tank to operate and control the component to realize the opening and closing of the water supply column.

[0009] A further setting of the present utility model is: further comprising a sedimentation tank, and the return water pipe is communicated with the paddy field through the sedimentation tank.

[0010] A further setting of the present utility model is: a return water hole is opened on the inner wall of the sedimentation tank, and the sedimentation tank is communicated with the paddy field through the return water hole.

[0011] By adopting the above technical solution, during the field drying period, when the water flows out of the paddy field depending on the height difference between the return water pipe and the bottom surface of the paddy field, it first flows to the sedimentation tank through the return water hole, which is beneficial to precipitate and filter the impurities carried in the water flow, and then flows to the drainage tank through the return water pipe and is discharged.

[0012] A further setting of the present utility model is: the return water hole is flush with or higher than the return water pipe in the horizontal direction.

[0013] By adopting the above technical solution, depending on the height difference between the return water hole and the return water pipe, it is convenient for the precipitated and filtered water flow in the sedimentation tank to flow back to the drainage tank and then be discharged.

[0014] A further setting of the present utility model is: the control component includes two blocking blocks installed on the inner wall of the water supply column, a valve seat installed on the outside of the water supply column, a valve rod rotatably connected to the valve seat, a blocking ball threadedly connected to the outside of the valve rod, and a runner installed on the top of the valve rod.

[0015] By adopting the above technical solution, the runner drives the valve rod to rotate, and the blocking ball is threadedly connected to the outside of the valve rod, so that the blocking ball moves up and down outside the valve rod to block between the two blocking blocks or separate from the blocking blocks, realizing the opening and closing of the water supply column.

[0016] A further setting of the present utility model is: the opposite sides of the two blocking blocks are both arcs adapted to the surface of the blocking ball.

[0017] By adopting the above technical solution, the arc setting is convenient for improving the fitting degree between the blocking ball and the wind block area, and improving the water cut-off effect of the water supply column.

[0018] A further setting of the present utility model is: the outside of the runner is designed with increased resistance.

[0019] By adopting the above technical solution, the increased resistance design is convenient for reducing the slippage when the human hand rotates the runner.

[0020] A further setting of the present utility model is: the valve rod is rotatably connected to the valve seat through a bearing.

[0021] By adopting the above technical solution, the stability of the connection between the valve stem and the valve seat is improved while the valve stem rotates.

[0022] A further setting of the present utility model is that one end of the water supply column away from the connecting pipe is designed with a flared opening.

[0023] By adopting the above technical solution, the flared opening design facilitates the flow of water into or out of the water supply column.

[0024] The beneficial effects of the present utility model are as follows: When irrigating paddy fields, the control component controls the opening of the water supply columns in the water supply tank and closes the water supply columns in the drainage tank. The water in the connecting pipe enters the water supply tank through the water supply columns, and the water flows into the paddy fields for irrigation relying on the height difference between the supplementary water pipe and the bottom surface of the paddy fields. When the paddy fields need to be dried in the sun, the control component controls the opening of the water supply columns in the drainage and water supply tank and closes the water supply columns in the water supply tank. The water flows out of the paddy fields relying on the height difference between the return water pipe and the bottom surface of the paddy fields and returns to the connecting pipe through the water supply columns. The water intake and drainage of the paddy fields are realized by using the height difference of water pressure. The water flow pressure inside the pipeline is low, the impact force on the valve group is small, the wear degree of the valve group is low, it is convenient for maintenance and the maintenance cost is low. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 is a schematic structural diagram of the present utility model;

[0027] Figure 2 is a sectional view showing the connection between the water supply tank and the connecting pipe of the present utility model;

[0028] Figure 3 is a sectional view showing the connection between the drainage tank and the connecting pipe of the present utility model;

[0029] Figure 4 is a schematic diagram showing the application of the valve group to the irrigation system of the present utility model.

[0030] In the figure, 1, connecting pipe; 2, water supply tank; 3, drainage tank; 4, sedimentation tank; 5, paddy field; 51, bottom surface of paddy field; 6, water supply column; 7, safety cover; 8, supplementary water pipe; 9, return water pipe; 10, return water hole; 11, plugging block; 12, valve seat; 13, valve stem; 14, runner; 15, plugging ball; 16, water inlet assembly; 17, water outlet assembly; 18, drainage assembly. Detailed Embodiments

[0031] The technical solution of the present utility model will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work shall fall within the protection scope of the present utility model.

[0032] Please refer to Figures 1-3 , the present utility model provides a valve group for a paddy field irrigation system, including a connecting pipe 1, a water supply tank 2, a drainage tank 3 and a paddy field 5. The connecting pipe 1 is connected to the water supply tank 2 and the drainage tank 3 through a water supply column 6. Control components for controlling the opening and closing of the water supply column 6 are installed inside both the water supply tank 2 and the drainage tank 3. A water replenishing pipe 8 is connected between the water supply tank 2 and the paddy field 5, and a water return pipe 9 is connected between the drainage tank 3 and the paddy field 5. The water replenishing pipe 8 is higher than the bottom surface 51 of the paddy field in the horizontal direction, and the water return pipe 9 is lower than or flush with the bottom surface 51 of the paddy field in the horizontal direction.

[0033] When irrigating the paddy field, the control component controls the water supply column 6 in the water supply tank 2 to open, and the water supply column 6 in the drainage tank 3 to close. The water in the connecting pipe 1 enters the water supply tank 2 through the water supply column 6, and the water flow flows into the paddy field for irrigation depending on the height difference between the water replenishing pipe 8 and the bottom surface 51 of the paddy field. When it is necessary to dry the paddy field, the control component controls the water supply column 6 in the drainage tank 3 to open, and the water supply column 6 in the water supply tank 2 to close. The water flow flows out of the paddy field depending on the height difference between the water return pipe 9 and the bottom surface 51 of the paddy field, and returns to the connecting pipe 1 through the water supply column 6. The water intake and drainage of the paddy field 5 are realized by using the height difference of water pressure. The water flow pressure inside the pipeline is low, the impact force on the valve group is small, the wear degree of the valve group is low, it is convenient to maintain and the maintenance cost is low.

[0034] Safety covers 7 that can be opened are provided on the inner top walls of both the water supply tank 2 and the drainage tank 3. The setting of the safety covers 7 facilitates opening the water supply tank 2 and the drainage tank 3 to operate the control component to realize the opening and closing of the water supply column 6.

[0035] It further includes a sedimentation tank 4. The water return pipe 9 is connected to the paddy field 5 through the sedimentation tank 4. A water return hole 10 is opened on the inner wall of the sedimentation tank 4, and the sedimentation tank 4 is connected to the paddy field 5 through the water return hole 10. When drying the paddy field, during the process that the water flow flows out of the paddy field depending on the height difference between the water return pipe 9 and the bottom surface 51 of the paddy field, it first flows to the sedimentation tank 4 through the water return hole 10, which is beneficial to precipitate and filter the impurities carried in the water flow, and then flows to the drainage tank 3 through the water return pipe 9 for discharge.

[0036] The water return hole 10 is flush with or higher than the water return pipe 9 in the horizontal direction. Depending on the height difference between the water return hole 10 and the water return pipe 9, it is convenient for the water filtered by sedimentation in the sedimentation tank 4 to flow back into the drainage tank 3 and then be discharged.

[0037] The control assembly includes two blocking blocks 11 installed on the inner wall of the water supply vertical column 6, a valve seat 12 installed on the outside of the water supply vertical column 6, a valve rod 13 rotatably connected to the valve seat 12, a blocking ball 15 threadedly connected to the outside of the valve rod 13, and a runner 14 installed on the top of the valve rod 13. By driving the valve rod 13 to rotate with the runner 14, and the blocking ball 15 being threadedly connected to the outside of the valve rod 13, the blocking ball 15 moves up and down outside the valve rod 13 to block between the two blocking blocks 11 or separate from the blocking blocks 11, realizing the opening and closing of the water supply vertical column 6.

[0038] The opposite sides of the two blocking blocks 11 are both arcs adapted to the surface of the blocking ball 15. The arc setting is convenient for improving the fitting degree between the blocking ball 15 and the air block 11 and enhancing the water cut-off effect of the water supply vertical column 6.

[0039] The outside of the runner 14 is designed with increased resistance, which is convenient for reducing the slippage when a person rotates the runner 14 by hand.

[0040] The valve rod 13 is rotatably connected to the valve seat 12 through a bearing, which improves the connection stability of the valve rod 13 on the valve seat 12 while the valve rod 13 rotates.

[0041] One end of the water supply vertical column 6 away from the connecting pipe 1 is designed with a flared opening, which is convenient for water to flow into or out of the water supply vertical column 6.

[0042] Please refer to Figure 4 , when this valve group is applied to an irrigation system, the irrigation system further includes a water inlet assembly 16, a water outlet assembly 17 and a drainage assembly 18. The water inlet assembly 16 includes a water inlet water pump and a water inlet pipe, the water inlet pipe is communicated with the connecting pipe 1, the water outlet assembly 17 is composed of a water outlet pipe and a water outlet main valve, the water outlet pipe is communicated with the connecting pipe 1, and the drainage assembly 18 is composed of a drainage water pump and a drainage pipe, and the drainage water pump is communicated with the connecting pipe 1.

[0043] When simultaneously irrigating multiple paddy fields 5, the outlet pipe is closed by using the main outlet valve. The inlet water pump is started to pump water from the external water channel and then rely on the gravity of the water to convey it into the connecting pipe 1. The water in the connecting pipe 1 enters the water supply tank 2 through the water supply standpipe 6. The water flow flows into the paddy field for irrigation relying on the height difference between the water replenishing pipe 8 and the bottom surface 51 of the paddy field. When the paddy field needs to be sunned, the outlet pipe is opened by using the main outlet valve, and the control component controls the water supply standpipe 6 in the water supply and drainage tank 3 to open and the water supply standpipe 6 in the water supply tank 2 to close. The water flow flows out of the paddy field relying on the height difference between the return pipe 9 and the bottom surface 51 of the paddy field and returns to the connecting pipe 1 through the water supply standpipe 6, and then is discharged through the outlet pipe. Only an inlet water pump is provided in the entire irrigation system, and other water inlet and drainage are realized by using the height difference of water pressure, which is convenient for maintenance, and the production cost and maintenance cost are low. When the river water level is too high, closing the main outlet valve can prevent the river water from flowing back into the paddy field. Then, start the drainage pump to pump the water in the connecting pipe 1 and discharge it through the drainage pipe, achieving the effect of being able to irrigate when dry and drain when waterlogged, and ensuring the purpose of ensuring a bumper harvest of rice in case of drought or waterlogging.

Claims

1. A valve group for a rice field irrigation system, characterized in that: The invention comprises a connecting pipe (1), a water supply tank (2), a drainage tank (3) and a rice field (5); the connecting pipe (1) is connected to the water supply tank (2) and the drainage tank (3) through a water supply column (6); a control component for controlling the opening and closing of the water supply column (6) is installed inside the water supply tank (2) and the drainage tank (3); a water supply pipe (8) is connected between the water supply tank (2) and the rice field (5); a water return pipe (9) is connected between the drainage tank (3) and the rice field (5); the water supply pipe (8) is higher than the bottom surface (51) of the rice field in the horizontal direction; and the water return pipe (9) is lower than the bottom surface (51) of the rice field in the horizontal direction or is flush with it.

2. The valve group for rice field irrigation system according to claim 1, characterized in that: The inner top walls of the water supply tank (2) and the drainage tank (3) are both provided with openable safety covers (7).

3. The valve group for rice field irrigation system according to claim 2, characterized in that: It also includes a sedimentation tank (4), and the return pipe (9) is connected to the rice field (5) through the sedimentation tank (4).

4. The valve group for rice field irrigation system according to claim 3, characterized in that: A water return hole (10) is provided on the inner wall of the sedimentation tank (4), and the sedimentation tank (4) is connected to the rice field (5) through the water return hole (10).

5. The valve group for rice field irrigation system according to claim 4, characterized in that: The water return hole (10) is flush with the water return pipe (9) or higher than the water return pipe (9) in the horizontal direction.

6. The valve group for rice field irrigation system according to claim 5, characterized in that: The control assembly comprises two sealing blocks (11) mounted on the inner wall of the water supply column (6), a valve seat (12) mounted on the outer side of the water supply column (6), a valve stem (13) rotatably connected to the valve seat (12), a sealing ball (15) threadedly connected to the outside of the valve stem (13), and a rotating wheel (14) mounted on the top of the valve stem (13).

7. The valve group for a rice field irrigation system according to claim 6, characterized in that: The opposite sides of the two blocking blocks (11) are both arc-shaped and matched with the surface of the blocking ball (15).

8. The valve group for a rice field irrigation system according to claim 7, characterized in that: The exterior of the rotating wheel (14) is designed to increase resistance.

9. The valve group for a rice field irrigation system according to claim 8, characterized in that: The valve stem (13) is rotatably connected to the valve seat (12) via a bearing.

10. The valve group for rice field irrigation system according to claim 9, characterized in that: The end of the water supply column (6) away from the connecting pipe (1) is of a flared design.

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