Water level control device suitable for rice and shrimp field
The water level control device, which combines photovoltaic power supply and mechanical linkage, solves the problems of low efficiency in manual monitoring and poor precision in mechanical control in rice-shrimp paddy field water level control. It achieves automated and precise regulation of water level in rice-shrimp paddy fields and high reliability of equipment, meeting the power supply stability requirements of open-air environments.
Patent Information
- Application Number
- CN202511678782.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-17
- Publication Date
- 2026-01-23
AI Technical Summary
Traditional rice-shrimp paddy field water level control relies on manual monitoring, which is inefficient and mechanical control is inaccurate. Furthermore, the open-air environment makes it difficult to supply electricity, resulting in large water level fluctuations and easy damage to equipment, making it difficult to achieve precise automatic adjustment of the water level in rice-shrimp paddy fields.
A water level control device that combines a photovoltaic power supply system with mechanical linkage includes a photovoltaic mechanism, water level monitoring components, pressure sensors, and a water pump. Powered by photovoltaic energy storage, it achieves automated water level regulation by combining mechanical sensors and water level monitoring components, thus avoiding the reliability issues of electronic sensors in silty environments.
It enables automated and precise control of water levels in rice-shrimp paddy fields, reduces manual intervention, adapts to open-air environment requirements, lowers equipment failure rate, and improves power supply stability and control accuracy.
Smart Images
Figure CN121386934A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of rice and shrimp cultivation, and particularly relates to a water level control device suitable for rice and shrimp fields. BACKGROUND
[0002] Rice and shrimp co-cultivation is a kind of cultivation mode of combination of planting and breeding, that is, small crayfish are cultivated in a rice field and a season of rice is planted, the small crayfish and the rice grow together in the rice field during the rice planting period, the water is discharged when the rice matures, the crayfish are caught and then the rice is cut, and the water level needs to be controlled during the rice and shrimp co-cultivation, so the water level control device needs to be used.
[0003] Traditional rice and shrimp field water level control relies on manual monitoring and mechanical valves, and the following problems exist: 1) the manual inspection efficiency is low, and it is difficult to respond to water level changes in real time; 2) mechanical control lacks precision, and is prone to cause large water level fluctuations; 3) power supply is difficult in an open environment, and the cost of conventional power grid power supply is high and is easily affected by weather. SUMMARY
[0004] The purpose of the present application is to provide a water level control device suitable for rice and shrimp fields to solve the problems existing in the prior art.
[0005] To achieve the above purpose, the present application provides the following scheme: the present application provides a water level control device suitable for rice and shrimp fields, comprising a first connecting column, a photovoltaic mechanism is installed on the top surface of the first connecting column, a power supply mechanism is arranged on one side of the top of the first connecting column, the power supply mechanism is electrically connected with the photovoltaic mechanism, a water level control mechanism is arranged at the bottom of the first connecting column, the water level control mechanism comprises a first connecting box fixedly connected with the first connecting column, a water inlet part and a water outlet part are respectively arranged in the first connecting box, a water level control part is further arranged in the first connecting box, the water level control part comprises a first connecting pipe in communication with the bottom of the first connecting box, a water level monitoring piece is arranged in the first connecting pipe, a limiting part is arranged in the first connecting box, and the water level monitoring piece is matched with the limiting part.
[0006] Optionally, a first cavity is arranged in the first connecting pipe, the water level monitoring piece is slidably connected in the first cavity, the water level monitoring piece comprises a first connecting plate slidably connected in the first cavity, a first connecting rod is fixedly connected to the top surface of the first connecting plate, the top surface of the first connecting rod is located in the first connecting box, a movable piece is hingedly connected to the top surface of the first connecting rod, the movable piece is fixedly connected to the inner wall of the first connecting box, and the movable piece is matched with the limiting part.
[0007] Optionally, the movable part comprises a first connecting shaft fixedly connected with the inner wall of the first connecting box, one end of the first connecting shaft away from the inner wall of the first connecting box is rotatably connected with a second connecting rod, one end of the second connecting rod away from the first connecting shaft is matched with the limiting part, the second connecting rod is provided with a first sliding groove, the top of the first connecting rod is rotatably connected with a second connecting shaft, one end of the second connecting shaft away from the first connecting rod is slidably connected in the first sliding groove.
[0008] Optionally, the limiting part comprises a second connecting plate fixedly connected with the inner wall of the first connecting box, the bottom surface of the second connecting plate is fixedly connected with a third connecting rod, the bottom surface of the third connecting rod is fixedly connected with a first pressure sensor, the first pressure sensor is located above the second connecting rod, and the second connecting rod is in abutment with the first pressure sensor when being rotated upward.
[0009] Optionally, the limiting part further comprises a fourth connecting rod fixedly connected with the inner wall of the first connecting box, the top surface of the fourth connecting rod is fixedly connected with a second pressure sensor, the second pressure sensor is located below the second connecting rod, and the second connecting rod is in abutment with the second pressure sensor when being rotated downward.
[0010] Optionally, the water outlet part comprises a first water outlet pipe in communication with the bottom of the first connecting box, the top of the first water outlet pipe extends into the first connecting box and is fixedly connected with a first water pump, one end of the first water pump away from the first water outlet pipe is in communication with a second water outlet pipe, the second water outlet pipe extends to the outside of the first connecting box, and the bottom of the first water outlet pipe is provided with a filtering mechanism.
[0011] Optionally, the filtering mechanism comprises a first motor fixedly connected in the first connecting box, the output shaft of the first motor penetrates through the first connecting box and is fixedly connected with a third connecting shaft, the bottom surface of the third connecting shaft is fixedly connected with a fifth connecting rod, the two ends of the fifth connecting rod are respectively fixedly connected with filter screens, and the filter screens are located below the first water outlet pipe.
[0012] Optionally, the water inlet part comprises a first water inlet pipe fixedly connected in communication with the bottom of the first connecting box, the top of the first water inlet pipe extends into the first connecting box and is fixedly connected with a second water pump, one side of the second water pump away from the first water inlet pipe is in communication with a second water inlet pipe, and the second water inlet pipe extends to the outside of the first connecting box.
[0013] Optionally, the water level control mechanism comprises a second connecting box fixedly connected with the first connecting column, the second connecting box is respectively provided with a controller and a storage battery, the first pressure sensor, the second pressure sensor, the first motor, the first water pump and the second water pump are respectively electrically connected with the controller, and the storage battery is electrically connected with the photovoltaic mechanism.
[0014] Optionally, the bottom surface of the first connecting column is fixedly connected with a connecting pile.
[0015] The application discloses the following technical effects: a photovoltaic mechanism converts solar energy into electric energy and stores the electric energy into a power mechanism; a water level control mechanism adjusts the water level of a rice-shrimp field through a water inlet / outlet in a first connecting box. A water level monitoring member in a first connecting pipe slides up and down with the water level, triggering a limiting part to act. The application can realize the integration of photovoltaic power supply and automatic water level control, reduce manual intervention, and adapt to the needs of the open environment of the rice-shrimp field. BRIEF DESCRIPTION OF DRAWINGS
[0016] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of this application, and their
[0017] Figure 1 FIG. 1 is a structural schematic view of a water level control device for a rice-shrimp field according to the present application;
[0018] Figure 2 FIG. 2 is a front view of the water level control device for the rice-shrimp field according to the present application;
[0019] Figure 3 FIG. 3 is a partial enlarged view of A in FIG. 2; Figure 2
[0020] Figure 4 FIG. 4 is a structural schematic view of a movable part of the present application.
[0021] In the drawings: 1, first connecting column; 2, photovoltaic mechanism; 3, first connecting box; 4, first connecting pipe; 5, first cavity; 6, first connecting plate; 7, first connecting rod; 8, first connecting shaft; 9, second connecting rod; 10, first sliding groove; 11, second connecting shaft; 12, second connecting plate; 13, third connecting rod; 14, first pressure sensor; 15, fourth connecting rod; 16, second pressure sensor; 17, first water outlet pipe; 18, first water pump; 19, second water outlet pipe; 20, first motor; 21, third connecting shaft; 22, fifth connecting rod; 23, filter screen; 24, first water inlet pipe; 25, second water pump; 26, second water inlet pipe; 27, second connecting box; 28, controller; 29, storage battery; 30, connecting pile. DETAILED DESCRIPTION
[0022] In the traditional rice farming system, rice field water level management mainly serves the needs of rice growth. Farmers usually adjust the water level by manually adjusting the height of the dike and opening the drainage ditch gate, according to the growth cycle of rice, combined with weather changes and soil moisture. This management mode has certain feasibility in the single rice farming scenario, but when crayfish farming is introduced, the rice ecosystem becomes more complex. Crayfish, as a bottom-dwelling aquatic animal, has specific requirements for water depth, flow rate, and dissolved oxygen content. For example, in the juvenile stage, suitable shallow water environment is conducive to their molting growth and avoiding predators; while in the adult stage, appropriate water depth helps them foraging and coping with high temperature weather. At the same time, rice has different water level requirements at different growth stages. Shallow water is needed for tillering to promote tillering, deep water is needed for booting to ensure young ear development, and mature stage needs to drain the field to promote grain maturity. The spatial and temporal differences in water level requirements of rice and crayfish make it difficult for the traditional manual management mode to achieve precise balance between the two.
[0023] The traditional manual water level management mode mainly has the following problems: first, manual monitoring has lag and subjectivity. Farmers often need to regularly patrol the rice field water level and judge the water level by visual observation or simple tools. This monitoring method is difficult to achieve real-time water level monitoring and is prone to water level fluctuations due to human negligence or judgment errors. Second, mechanical valve operation lacks precise control ability. Traditional drainage ditch gates are mostly manually opened, which makes it difficult to achieve continuous fine-tuning of water level, often resulting in excessive opening of the gate causing excessive drainage or insufficient opening causing water accumulation. Third, the open rice field environment poses a serious challenge to power supply facilities. Rice-crayfish fields are usually located in open farmland areas, and conventional power grid wiring is costly and vulnerable to lightning, rain erosion and other natural factors, resulting in reduced reliability of electric control devices. Fourth, the silt environment of the rice field is prone to equipment clogging failure. The rice field water body often contains a large amount of suspended solids such as silt and organic debris, which can easily deposit inside the pipe, valve and other components during long-term use, causing equipment clogging, poor operation, or even failure.
[0024] In the field of existing water level control technology, various types of automation devices have been applied in different scenarios. For example, in the fields of industrial water, urban water supply, etc., a closed-loop control system composed of a liquid level sensor, an electric valve, a PLC controller, etc. has achieved relatively mature application. This kind of system monitors the water level in real time through the liquid level sensor, transmits the signal to the controller for analysis and processing, and then drives the actuator to adjust the valve opening or the water pump start-stop, finally realizes the automatic control of water level. However, when this kind of industrial control system is directly applied in rice-shrimp field environment, it faces significant environmental adaptability challenges. The impurities such as silt and organic matter in the water body of the rice field are easy to adhere to the surface of the liquid level sensor, which leads to the decrease of detection accuracy or even failure. At the same time, the high humidity, high salinity, large diurnal temperature difference and other harsh environmental conditions put higher requirements on the corrosion resistance and weather resistance of electronic components. In addition, industrial control systems usually require stable power supply, while the power grid wiring in the rice field environment is difficult, high in cost, and easy to be affected by natural factors to cause power interruption.
[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.
[0026] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.
[0027] Referring to Figures 1 to 4 It is shown that the present embodiment provides a water level control device suitable for rice-shrimp field, which comprises a first connecting column 1, a photovoltaic mechanism 2 is installed on the top surface of the first connecting column 1, a power supply mechanism is arranged on one side of the top of the first connecting column 1, the power supply mechanism is electrically connected with the photovoltaic mechanism 2, a water level control mechanism is arranged at the bottom of the first connecting column 1, the water level control mechanism comprises a first connecting box 3 fixedly connected with the first connecting column 1, a water inlet part and a water outlet part are respectively arranged in the first connecting box 3, a water level control part is further arranged in the first connecting box 3, the water level control part comprises a first connecting pipe 4 in communication with the bottom of the first connecting box 3, a water level monitoring piece is arranged in the first connecting pipe 4, a limiting part is arranged in the first connecting box 3, and the water level monitoring piece is matched with the limiting part.
[0028] The photovoltaic mechanism 2 converts solar energy into electrical energy and stores it in the power supply mechanism, and the water level control mechanism adjusts the water level of the rice-shrimp field through the water inlet part / water outlet part in the first connecting box 3. The water level monitoring piece in the first connecting pipe 4 slides up and down with the water level, triggering the limiting part to act. The present application can realize the integration of photovoltaic power supply and automatic water level control, reduce manual intervention, and adapt to the open environment requirements of rice-shrimp field.
[0029] Further optimization scheme, the first connecting pipe 4 is provided with a first cavity 5, and a water level monitoring member is slidably connected in the first cavity 5; the water level monitoring member comprises a first connecting plate 6 slidably connected to the first cavity 5; a first connecting rod 7 is fixedly connected to the top surface of the first connecting plate 6; the top surface of the first connecting rod 7 is located in the first connecting box 3; a movable member is hingedly connected to the top surface of the first connecting rod 7; the movable member is fixedly connected to the inner wall of the first connecting box 3; and the movable member is matched with the limiting portion.
[0030] The water level change drives the first connecting plate 6 to slide in the first cavity 5, drives the movable member to rotate through the first connecting rod 7, and triggers the limiting portion to respond. The accurate capture of the water level change is realized through mechanical linkage, and the reliability problem of the electronic sensor in the muddy water environment is avoided.
[0031] Further optimization scheme, the movable member comprises a first connecting shaft 8 fixedly connected to the inner wall of the first connecting box 3; a second connecting rod 9 is rotatably connected to one end of the first connecting shaft 8 away from the inner wall of the first connecting box 3; the end of the second connecting rod 9 away from the first connecting shaft 8 is matched with the limiting portion; a first sliding groove 10 is arranged on the second connecting rod 9; a second connecting shaft 11 is rotatably connected to the top of the first connecting rod 7; and one end of the second connecting shaft 11 away from the first connecting rod 7 is slidably connected in the first sliding groove 10.
[0032] The first connecting rod 7 is slid in the first sliding groove 10 of the second connecting rod 9 through the second connecting shaft 11, and drives the second connecting rod 9 to rotate around the first connecting shaft 8. The linear motion is converted into rotary motion, the displacement signal is amplified, and the water level monitoring sensitivity is improved.
[0033] Further optimization scheme, the limiting portion comprises a second connecting plate 12 fixedly connected to the inner wall of the first connecting box 3; a third connecting rod 13 is fixedly connected to the bottom surface of the second connecting plate 12; a first pressure sensor 14 is fixedly connected to the bottom surface of the third connecting rod 13; the first pressure sensor 14 is located above the second connecting rod 9; and the second connecting rod 9 abuts against the first pressure sensor 14 when being upward rotated.
[0034] When the water level rises to the upper limit, the second connecting rod 9 is upward rotated to touch the first pressure sensor 14, and a water stop signal is triggered.
[0035] Further optimization scheme, the limiting portion further comprises a fourth connecting rod 15 fixedly connected to the inner wall of the first connecting box 3; a second pressure sensor 16 is fixedly connected to the top surface of the fourth connecting rod 15; the second pressure sensor 16 is located below the second connecting rod 9; and the second connecting rod 9 abuts against the second pressure sensor 16 when being downward rotated.
[0036] When the water level drops to the lower limit, the second connecting rod 9 is downward rotated to touch the second pressure sensor 16, and a water supplement signal is triggered.
[0037] Further optimization scheme, the water outlet part includes a first water outlet pipe 17 communicated with the bottom of the first connecting box 3, the top of the first water outlet pipe 17 extends into the first connecting box 3 and is fixedly connected with a first water pump 18, the end of the first water pump 18 away from the first water outlet pipe 17 is communicated with a second water outlet pipe 19, the second water outlet pipe 19 extends to the outside of the first connecting box 3, and the bottom of the first water outlet pipe 17 is provided with a filtering mechanism.
[0038] The first water pump 18 drains water through the first water outlet pipe 17 / second water outlet pipe 19, and the bottom filtering mechanism intercepts impurities. High-efficiency drainage is realized while preventing pipeline blockage, prolonging the service life of the equipment.
[0039] Further optimization scheme, the filtering mechanism includes a first motor 20 fixedly connected in the first connecting box 3, an output shaft of the first motor 20 penetrates through the first connecting box 3 and is fixedly connected with a third connecting shaft 21, the bottom surface of the third connecting shaft 21 is fixedly connected with a fifth connecting rod 22, and both ends of the fifth connecting rod 22 are fixedly connected with filter screens 23, and the filter screens 23 are located below the first water outlet pipe 17.
[0040] The first motor 20 drives the third connecting shaft 21 to rotate, and drives the filter screens 23 to rotate periodically, so that the adsorbed impurities are automatically cleaned. Through mechanical self-cleaning, the frequency of manual maintenance is reduced, and the high-silt environment of the rice-shrimp field is adapted.
[0041] Further optimization scheme, the water inlet part includes a first water inlet pipe 24 fixedly connected and communicated with the bottom of the first connecting box 3, the top of the first water inlet pipe 24 extends into the first connecting box 3 and is fixedly connected with a second water pump 25, one side of the second water pump 25 away from the first water inlet pipe 24 is communicated with a second water inlet pipe 26, and the second water inlet pipe 26 extends to the outside of the first connecting box 3.
[0042] The second water pump 25 supplements water to the rice-shrimp field from an external water source through the first water inlet pipe 24 / second water inlet pipe 26.
[0043] Further optimization scheme, the water level control mechanism includes a second connecting box 27 fixedly connected with the first connecting column 1, a controller 28 and a storage battery 29 are respectively arranged in the second connecting box 27, the first pressure sensor 14, the second pressure sensor 16, the first motor 20, the first water pump 18 and the second water pump 25 are electrically connected with the controller 28 respectively, and the storage battery 29 is electrically connected with the photovoltaic mechanism 2.
[0044] The controller 28 receives the pressure sensor signal, controls the start and stop of the first motor 20, the first water pump 18 and the second water pump 25. The controller 28 receives the pressure sensor signal, controls the start and stop of the first motor 20, the first water pump 18 and the second water pump 25. Realize the cooperative work of each part, build an automatic water level control system, and improve the control precision.
[0045] Further optimization scheme, the bottom surface of the first connecting column 1 is fixedly connected with a connecting pile 30. The connecting pile 30 fixes the device to the bottom of the rice-shrimp field and resists water flow impact.
[0046] Through the linkage of pressure sensor and controller 28, the upper and lower limits of water level are automatically adjusted, the photovoltaic power supply system meets the daytime equipment operation demand, and carbon emission is reduced; mechanical water level monitoring and electronic control are combined to adapt to the high humidity and high corrosion environment of rice-shrimp field.
[0047] Working principle:
[0048] The photovoltaic mechanism 2 converts solar energy into electrical energy and stores it in the battery 29 to supply power to the controller 28, water pump and motor; the water level change drives the monitoring piece in the first connecting pipe 4 to slide, the displacement signal is amplified through the movable piece, and the upper and lower limit pressure sensors are triggered; after the controller 28 receives the sensor signal, it controls the first water pump 18 (drainage) or the second water pump 25 (water replenishment) to start and stop; the water outlet drains water through the filtering mechanism, and the water inlet replenishes water from the external water source; the filter screen 23 is driven to rotate by the motor to prevent blockage; after the water level returns to the set interval, the sensor stops triggering, and the system enters standby state, forming an automatic cycle.
[0049] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.
[0050] The above-described embodiments are only preferred modes of the present application, and do not limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope of the present application.
Claims
1. A water level control device suitable for rice-shrimp fields, characterized in that: The utility model provides a first connecting column (1), the top of one side of first connecting column (1) is equipped with photovoltaic mechanism (2), one side top of first connecting column (1) is equipped with power supply mechanism, power supply mechanism with photovoltaic mechanism (2) electric connection, the bottom of first connecting column (1) is equipped with water level control mechanism, water level control mechanism includes with first connecting column (1) fixed first connecting box (3), first connecting box (3) is equipped with water inlet part and water outlet part respectively, first connecting box (3) is equipped with water level control part still, water level control part includes with first connecting box (3) bottom intercommunication first connecting pipe (4), first connecting pipe (4) is equipped with water level monitoring piece, first connecting box (3) is equipped with limiting portion, water level monitoring piece with limiting portion is adapted.
2. The water level control device suitable for use in rice-shrimp field according to claim 1, characterized in that: First connecting pipe (4) is equipped with first cavity (5), the water level monitoring piece of first cavity (5) is slidably connected, the water level monitoring piece includes the first connecting plate (6) of first cavity (5) is slidably connected, the top of first connecting plate (6) is fixedly connected with first connecting rod (7), the top of first connecting rod (7) is located in first connecting box (3), the top of first connecting rod (7) is hingedly connected with movable part, movable part is fixedly connected with the inner wall of first connecting box (3), movable part with limiting portion is adapted.
3. The water level control device suitable for use in rice-shrimp field according to claim 2, characterized in that: Movable part includes the first connecting shaft (8) of first connecting box (3) inner wall fixedly connected, the one end of first connecting shaft (8) away from first connecting box (3) inner wall is rotatably connected with second connecting rod (9), the one end of second connecting rod (9) away from first connecting shaft (8) is adapted with limiting portion, first sliding slot (10) is equipped on second connecting rod (9), the top of first connecting rod (7) is rotatably connected with second connecting shaft (11), the one end of second connecting shaft (11) away from first connecting rod (7) is slidably connected in first sliding slot (10).
4. The water level control device suitable for use in rice-shrimp field according to claim 3, characterized in that: Limiting portion includes the second connecting plate (12) of first connecting box (3) inner wall fixedly connected, the bottom of second connecting plate (12) is fixedly connected with third connecting rod (13), the bottom of third connecting rod (13) is fixedly connected with first pressure sensor (14), first pressure sensor (14) is located above second connecting rod (9), when second connecting rod (9) rotates upward and abuts against first pressure sensor (14).
5. The water level control device suitable for use in rice-shrimp field according to claim 4, characterized in that: Limiting portion also includes the fourth connecting rod (15) of first connecting box (3) inner wall fixedly connected, the top of fourth connecting rod (15) is fixedly connected with second pressure sensor (16), second pressure sensor (16) is located below second connecting rod (9), when second connecting rod (9) rotates downward and abuts against second pressure sensor (16).
6. The water level control device suitable for use in rice-shrimp field according to claim 5, characterized in that: The water outlet part comprises a first water outlet pipe (17) communicated with the bottom of the first connecting box (3), the top of the first water outlet pipe (17) extends into the first connecting box (3) and is fixedly connected with a first water pump (18), one end of the first water pump (18) away from the first water outlet pipe (17) is communicated with a second water outlet pipe (19), the second water outlet pipe (19) extends to the outside of the first connecting box (3), and the bottom of the first water outlet pipe (17) is provided with a filtering mechanism.
7. The water level control device suitable for use in rice-shrimp field according to claim 6, characterized in that: The filtering mechanism comprises a first motor (20) fixedly connected in the first connecting box (3), the output shaft of the first motor (20) penetrates through the first connecting box (3) and is fixedly connected with a third connecting shaft (21), the bottom surface of the third connecting shaft (21) is fixedly connected with a fifth connecting rod (22), both ends of the fifth connecting rod (22) are fixedly connected with filter screens (23), and the filter screens (23) are located below the first water outlet pipe (17).
8. The water level control device suitable for use in rice-shrimp field according to claim 7, characterized in that: The water inlet part comprises a first water inlet pipe (24) fixedly connected and communicated with the bottom of the first connecting box (3), the top of the first water inlet pipe (24) extends into the first connecting box (3) and is fixedly connected with a second water pump (25), one side of the second water pump (25) away from the first water inlet pipe (24) is communicated with a second water inlet pipe (26), and the second water inlet pipe (26) extends to the outside of the first connecting box (3).
9. The water level control device suitable for use in rice-shrimp field according to claim 8, characterized in that: The water level control mechanism comprises a second connecting box (27) fixedly connected with the first connecting column (1), the second connecting box (27) is provided with a controller (28) and a storage battery (29) respectively, the first pressure sensor (14), the second pressure sensor (16), the first motor (20), the first water pump (18) and the second water pump (25) are electrically connected with the controller (28) respectively, and the storage battery (29) is electrically connected with the photovoltaic mechanism (2).
10. The water level control device suitable for use in rice-shrimp field according to claim 1, characterized in that: The bottom surface of the first connecting column (1) is fixedly connected with a connecting pile (30).