Terraced water level control device
By designing the outer and inner cylinder structures, and combining the use of filters and riser pipes, the problem of impurity blockage in the terraced field water level control device was solved, achieving flexible water level adjustment and stable water level control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING KAIZHOU DISTRICT NINGYOU AGRICULTURAL TECHNOLOGY CO LTD
- Filing Date
- 2025-10-28
- Publication Date
- 2026-07-24
AI Technical Summary
The existing terraced field water level control devices have clogging problems in filtering weeds and other impurities from the water body, resulting in obstructed drainage outlets and affecting the water level control effect.
A terraced field water level control device was designed, which adopts an outer cylinder and an inner cylinder structure. The outer cylinder is equipped with a water inlet and a filter screen, and the inner cylinder adjusts the water level through a riser pipe. A filter screen and a filter plate are installed at the water inlet to prevent impurities from entering. By combining the filtration functions of the riser pipe and the filter screen, flexible control of the water level and effective filtration of impurities can be achieved.
It effectively prevents water impurities from entering the device, thus preventing blockages, and enables flexible adjustment and stable control of the water level, thereby improving the device's service life and efficiency.
Smart Images
Figure CN224553694U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural irrigation equipment technology, specifically to a terraced field water level control device. Background Technology
[0002] Terraced field water level control devices are crucial for water conservation and increased efficiency in rice cultivation. A wide range of options are available, from simple traditional methods to modern intelligent systems. Traditional devices, such as siphons utilizing the principle of communicating vessels and simple, automatically maintaining water levels, are inexpensive and easy to manufacture, making them ideal for small-scale farmers. For further automation, float valves can precisely control water levels like a flush toilet, while fully mechanical flap gates open and close automatically using water pressure, offering greater robustness and durability.
[0003] Existing technology discloses a terraced field water collection and drainage device, relating to the field of terraced field technology. It includes a terraced field body, several water pipes installed on the terraced field body for diverting water from the upper terraced field to the lower terraced field, and a drainage mechanism installed on the terraced field body for draining excess water from the terraced field into an external water storage facility during extreme weather events such as heavy rain. The drainage mechanism includes drainage components and control components. Through the installation of water pipes, water from the upper terraced field can be diverted to the lower terraced field for irrigating crops layer by layer. In extreme weather events such as heavy rain, if the water inflow into the terraced field exceeds the drainage capacity of the water pipes, the water level in the terraced field will rise. At this time, the control component will automatically activate an emergency drainage mode, quickly draining excess water from the terraced field area through the drainage components to prevent soil erosion and terraced field collapse.
[0004] The surface of paddy field water often contains a lot of weeds and other debris. The drainage pipes used to control the water level in the above-mentioned devices lack a filtration system to remove these impurities, which can easily lead to blockage of the drainage outlets.
[0005] Based on this, the present invention designs a terraced field water level control device to solve the above problems. Utility Model Content
[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a terraced field water level control device.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A terraced field water level control device includes an outer cylinder and an inner cylinder located inside the outer cylinder. The outer cylinder includes a first cylinder body, a fixed pile is installed at the lower end of the first cylinder body, and a water inlet for water to pass through is opened on the side wall of the first cylinder body. A filter assembly is installed on the outside of the water inlet.
[0009] The inner cylinder includes a second cylinder body, which is installed inside the first cylinder body via a connecting assembly. A lifting pipe is installed at the upper end of the second cylinder body, and the lifting pipe moves along the second cylinder body and stops at different positions. A drain pipe is connected to the lower end of the second cylinder body.
[0010] The height of the upper opening of the second cylinder is lower than that of the upper opening of the first cylinder.
[0011] Preferably, the filter assembly includes a filter screen located around the periphery of the first cylinder, the filter screen moving up and down along the outer wall of the first cylinder, and a fixing member installed on the filter screen to fix the filter screen to the first cylinder.
[0012] Preferably, the connecting assembly includes a connecting ring, the inner side of which is fixed to the outer wall of the second cylinder, and the outer side of which is threadedly connected to the inner wall of the first cylinder.
[0013] Preferably, the fixing member is a rubber ring, which is bound to the outer wall of the first cylinder and drives the filter screen to move up and down along the outer wall of the first cylinder.
[0014] Preferably, the fixing pile is a portion that penetrates into the soil, and is inverted conical in shape. The fixing pile is detachably connected to the first cylinder.
[0015] Preferably, the upper end of the fixed pile is a threaded part, which is threadedly connected to the first cylinder body.
[0016] Preferably, a protective cover is detachably installed on the upper end of the first cylinder, and a filter plate is fixedly installed on the protective cover.
[0017] Preferably, a filter cover is detachably installed on the upper end of the second cylinder, and the filter cover prevents weeds in the water from entering the second cylinder.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The water level is controlled by the first cylinder and the second cylinder. Compared with the existing water level control device, the water inlet of this device is underwater, while weeds and other things mostly float on the water surface. Therefore, a large number of impurities in the water can be avoided from entering the first cylinder. At the same time, a filter screen is installed at the water inlet to prevent larger particles of impurities in the water from entering the device.
[0019] 2. The overall length of the second cylinder can be adjusted by setting up a lifting pipe. Since the water entering the first cylinder flows into the second cylinder from the opening of the lifting pipe, the water level can be flexibly adjusted and controlled by adjusting the position of the lifting pipe in the vertical direction.
[0020] 3. By setting up a filter screen, impurities entering the water body of the first cylinder can be filtered out. At the same time, the filter screen can be moved to a different position on the outer wall of the first cylinder to achieve uninterrupted operation. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the structure of a terraced field water level control device according to the present invention;
[0023] Figure 2 This is a cross-sectional view of a terraced field water level control device according to the present invention;
[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0025] Figure 4 This is a schematic diagram illustrating the use of a terraced field water level control device according to this utility model.
[0026] The labels in the diagram represent:
[0027] 10. Outer cylinder; 11. First cylinder body; 111. Inlet; 112. Rubber ring; 113. Filter screen; 114. Drain pipe; 12. Fixing stake; 13. Protective cover; 131. Filter plate; 20. Inner cylinder; 21. Second cylinder body; 211. Connecting ring; 22. Lifting pipe; 221. Filter cover; 222. Connecting pipe. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0029] Terraced field water level control devices are used to control the water level in terraced fields, thereby maintaining the water level in different areas to meet actual production requirements and enabling water resources to be used more fully and rationally. Existing terraced field water level control devices generally install a horizontal drainage pipe at the water level control point. When the water level reaches the position of the drainage pipe, the water flows out from the drainage pipe into other terraced fields. The inventors discovered that a large number of weeds, leaves and other impurities float on the surface of the water in the terraced fields. These floating impurities move with the water flow. When the impurities move to the opening of the horizontal drainage pipe, larger weeds cannot pass through the drainage pipe and block the opening of the drainage pipe. With continuous accumulation, the opening of the pipe is eventually blocked.
[0030] In some embodiments, please refer to the accompanying drawings. Figure 1 , Figure 2 A terraced field water level control device includes an outer cylinder 10 and an inner cylinder 20 inside the outer cylinder 10. The two parts are nested together. The outer cylinder 10 is in contact with the water in the terraced field and allows water to enter its interior. The main function of the inner cylinder 20 is to control the height of the water entering the outer cylinder 10.
[0031] Specifically, such as Figure 1 As shown, the main body of the outer cylinder 10 is a cylindrical first cylinder 11. The lower end of the first cylinder 11 is threaded with an inverted conical fixing pile 12. The fixing pile 12 is used to insert into the soil of the terraced field to keep the first cylinder 11 stable. Multiple rectangular holes are opened on the side wall of the first cylinder 11, which are water inlets 111. Water from the terraced field enters the interior of the first cylinder 11 through the water inlets 111. A protective cover 13 is installed at the upper end of the first cylinder 11. The protective cover 13 is circular, and the upper end of the cover is a filter plate 131. The surface of the filter plate 131 has multiple small through holes. Air passes through the small through holes to keep the internal and external air pressure consistent. At the same time, the filter plate 131 can block weeds and other things in the environment from entering the interior of the first cylinder 11 from the upper end.
[0032] A filter screen 113 is wrapped around the water inlet 111 of the first cylinder 11. The filter screen 113 can be glued to the side wall of the first cylinder 11. When water enters the first cylinder 11 from the water inlet 111, the filter screen 113 traps the impurities in the water.
[0033] The main body of the inner cylinder 20 is a cylindrical second cylinder 21. Both the upper and lower ends of the second cylinder 21 are open. The lower opening is connected to one end of a rubber connecting pipe 222. The other end of the connecting pipe 222 is fixedly installed on a drain pipe 114. The drain pipe 114 passes through the first cylinder 11 and is sealed and fixed to it. A filter cover 221 is inserted into the upper opening of the inner cylinder 20. The filter cover 221 is shaped as follows... Figure 3As shown, the second cylinder 21 is circular with multiple through holes on its surface. An annular connecting ring 211 is fixedly installed on the outer wall of the second cylinder 21. The outer wall of the connecting ring 211 is threaded to the inner wall of the first cylinder 11. Rotating the connecting ring 211 can synchronously drive the second cylinder 21 to move up and down (note that when rotating the second cylinder 21, the connecting pipe 222 at its lower end is not connected to the lower end of the second cylinder 21. After the position of the second cylinder 21 is fixed, first open the fixing stake 12 and then connect the second cylinder 21 and the connecting pipe 222. Finally, tighten the fixing stake 12 on the first cylinder 11). This adjusts the position of the upper opening of the second cylinder 21 in the vertical direction.
[0034] When using, such as Figure 2 As shown, firstly, adjust the height of the opening at the upper end of the second cylinder 21 inside the first cylinder 11 according to the required water level. Then, fix both ends of the connecting pipe 222 to the lower end of the second cylinder 21 and one end of the drain pipe 114, respectively. Tighten the fixing stake 12 at the lower end of the first cylinder 11 to complete the connection preparation of the device. Finally, insert one end of the fixing stake 12 into the soil of the terrace. At this time, the water in the terrace enters the interior of the first cylinder 11 from the inlet 111. As the liquid level in the first cylinder 11 rises and falls... As the water level rises, it reaches the upper opening of the second cylinder 21. The water then flows into the second cylinder 21 through the upper opening and finally enters the drain pipe 114 through the connecting pipe 222 and is discharged into the lower-lying terraced fields. As the water level in the terraced fields decreases, the water level in the first cylinder 11 decreases. When the water level is slightly lower than the upper opening of the second cylinder 21, the water cannot flow into the second cylinder 21, thus achieving the effect of controlling the water level in the terraced fields.
[0035] The water level is controlled by the first cylinder 11 and the second cylinder 21. Compared with the existing water level control device, the inlet 111 of this device is underwater, while weeds and other things mostly float on the water surface. Therefore, a large number of impurities in the water can be prevented from entering the first cylinder 11. At the same time, a filter screen 113 is installed at the inlet 111 to prevent larger particles of impurities in the water from entering the device.
[0036] In some embodiments, such as Figures 2-3 As shown, in a preferred embodiment of the present invention, the upper inner wall of the second cylinder 21 has threads, and the outer wall of the lifting tube 22 has threads that are compatible with the inner wall of the second cylinder 21. The two are threadedly connected. The lifting tube 22 has a certain length. After rotating the lifting tube 22, the lifting tube 22 moves up and down along the long axis of the second cylinder 21. The upper inner wall of the lifting tube 22 is fixedly connected to a filter cover 221 with multiple small holes to filter impurities in the water entering the second cylinder 21.
[0037] The overall length of the second cylinder 21 can be adjusted by setting up the lifting pipe 22. Since the water entering the first cylinder 11 flows into the second cylinder 21 from the opening of the lifting pipe 22, the height of the water level can be flexibly adjusted and controlled by adjusting the position of the lifting pipe 22 in the vertical direction.
[0038] In some embodiments, such as Figure 1 , Figure 2 As shown, in a preferred embodiment of this utility model, the height of the filter screen 113 is twice the height of the inlet 111. The filter screen 113 is made of metal sheet and has high rigidity. Its inner diameter is slightly larger than the outer diameter of the first cylinder 11. Meanwhile, rubber rings 112 are bonded to the upper and lower ends of the filter screen 113. The rubber rings 112 have a certain width, and their inner diameter is slightly smaller than the outer diameter of the first cylinder 11. Therefore, when the rubber rings 112 are fitted onto the first cylinder 11, they undergo radial deformation and are ultimately bound to the outer wall of the first cylinder 11. Static friction exists between the first cylinder 11 and the rubber rings 112. Figure 1 As shown, the upper half of the filter screen 113 covers the outside of the water inlet 111. After working for a period of time, impurities such as grass roots and leaves in the water gradually adhere to the upper half of the filter screen 113. Since no water flows through the lower half of the filter screen 113, no impurities are trapped on its surface. At this time, the rubber ring 112 can be lifted upwards to move the filter screen 113 upwards, so that the lower half of the filter screen 113 covers the outside of the water inlet 111.
[0039] The filter screen 113 is set to filter impurities entering the water body of the first cylinder 11. At the same time, the filter screen 113 can move to a different position on the outer wall of the first cylinder 11 to achieve uninterrupted operation.
[0040] Working principle: First, adjust the height of the opening at the upper end of the second cylinder 21 inside the first cylinder 11 according to the required water level. Then, fix both ends of the connecting pipe 222 to the lower end of the second cylinder 21 and one end of the drainage pipe 114, respectively. Tighten the fixing stake 12 at the lower end of the first cylinder 11 to complete the connection preparation of the device. Finally, insert one end of the fixing stake 12 into the soil of the terrace. At this time, the water in the terrace enters the interior of the first cylinder 11 from the inlet 111. As the liquid level inside the first cylinder 11 rises... As the liquid level rises, it reaches the upper opening of the second cylinder 21. The water then flows into the second cylinder 21 through the upper opening and finally enters the drain pipe 114 through the connecting pipe 222 and is discharged into the lower-lying terraced fields. As the water level in the terraced fields decreases, the liquid level in the first cylinder 11 decreases. When the liquid level is slightly lower than the upper opening of the second cylinder 21, the water cannot flow into the second cylinder 21, thus achieving the effect of controlling the water level in the terraced fields.
[0041] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A terraced field water level control device, comprising an outer cylinder (10) and an inner cylinder (20) located within the outer cylinder (10), characterized in that: The outer cylinder (10) includes a first cylinder body (11), a fixed pile (12) is installed at the lower end of the first cylinder body (11), and an inlet (111) for water to pass through is opened on the side wall of the first cylinder body (11), and a filter assembly is installed on the outside of the inlet (111). The inner cylinder (20) includes a second cylinder body (21), which is installed inside the first cylinder body (11) by a connecting assembly. A lifting pipe (22) is installed at the upper end of the second cylinder body (21). The lifting pipe (22) moves along the second cylinder body (21) and stops at different positions. A drain pipe (114) is connected to the lower end of the second cylinder body (21). The height of the upper opening of the second cylinder (21) is lower than that of the upper opening of the first cylinder (11).
2. The terraced field water level control device according to claim 1, characterized in that, The filter assembly includes a filter screen (113) located around the first cylinder (11). The filter screen (113) moves up and down along the outer wall of the first cylinder (11). A fixing member is installed on the filter screen (113) to fix the filter screen (113) to the first cylinder (11).
3. The terraced field water level control device according to claim 2, characterized in that, The connecting assembly includes a connecting ring (211), the inner side of which is fixed to the outer wall of the second cylinder (21), and the outer side of which is threaded to the inner wall of the first cylinder (11).
4. The terraced field water level control device according to claim 3, characterized in that, The fixing component is a rubber ring (112), which is bound to the outer wall of the first cylinder (11) and drives the filter screen (113) to move up and down along the outer wall of the first cylinder (11).
5. The terraced field water level control device according to claim 4, characterized in that, The fixed pile (12) is the part that penetrates into the soil and is inverted cone shape. The fixed pile (12) is detachably connected to the first cylinder (11).
6. The terraced field water level control device according to claim 5, characterized in that, The upper end of the fixed pile (12) is threaded, and the threaded part is threadedly connected to the first cylinder (11).
7. The terraced field water level control device according to claim 6, characterized in that, A protective cover (13) is detachably installed on the upper end of the first cylinder (11), and a filter plate (131) is fixedly installed on the protective cover (13).
8. The terraced field water level control device according to claim 1 or 7, characterized in that, A filter cover (221) is detachably installed on the upper end of the second cylinder (21), and the filter cover (221) prevents weeds in the water from entering the second cylinder (21).