A device for monitoring water level in a rice field
By adopting a spiral through-hole and a funnel-shaped water outlet frame design in the paddy field water level monitoring equipment, the problem of impurity accumulation caused by slow water flow speed was solved, and high-precision water level measurement was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 讷河市灌区总站(讷河市尼尔基直供灌区工程建设服务中心)
- Filing Date
- 2025-08-28
- Publication Date
- 2026-06-23
AI Technical Summary
In existing paddy field water level monitoring, the slow water flow makes it easy for impurities to adhere to the bottom of the float, leading to inaccurate measurements.
The spiral through-hole design creates a spiral upward flow when water flows through the through-hole, generating centrifugal force to prevent impurities from accumulating. The water flow is also evenly diffused through the funnel-shaped water outlet frame, ensuring that the float rises vertically.
This improves the accuracy and efficiency of water level detection, reduces the accumulation of impurities at the bottom of the float, and ensures accurate readings.
Smart Images

Figure CN224398761U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water level monitoring technology, specifically to a device for monitoring water levels in paddy fields. Background Technology
[0002] With the development of national agricultural digitalization, data acquisition on water resource consumption and monitoring of paddy field water quality, which are key aspects of water conservation control in paddy fields, have become new challenges. Real-time remote sensing of paddy field water level and quality has become a new issue.
[0003] In the field of paddy field water level monitoring, manual measurement is currently the most common method. During this process, the water flow into the measuring cylinder is relatively slow, making it easy for impurities in the water to adhere to the bottom surface of the float. Over time, the accumulation of impurities on the bottom of the float significantly increases its weight. This increased weight directly leads to a greater draft, ultimately resulting in inaccurate measurements of the paddy field water level. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a device for monitoring water levels in paddy fields.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] A device for monitoring water levels in paddy fields includes:
[0007] The mounting base has a scale on one end of its surface.
[0008] A graduated cylinder is provided on the graduated side of the mounting base, and the interior of the graduated cylinder is provided with a water inlet space;
[0009] Floating components, including
[0010] A float is disposed inside the water inlet space;
[0011] A vertical rod, one end of which is connected to the top surface of the float, and the other end of which extends through the surface of the measuring cylinder. In the initial state, the top end of the vertical rod is located at the initial point of the scale.
[0012] A through hole is provided on the bottom surface of the measuring cylinder, and the through hole is in communication with the water inlet space;
[0013] The bottom of the measuring cylinder is placed in the water level of the paddy field. Water flows into the measuring cylinder through the through hole, and the buoyancy pushes the float upward, while the vertical rod moves on the scale.
[0014] Preferably, the inner wall of the through hole is spirally upward along the water flow path, and the diameter of the through hole gradually decreases along the water flow path.
[0015] Preferably, in the initial state, the center of the through hole and the center of the float are in the same vertical direction.
[0016] Preferably, the water outlet end of the through hole is externally connected to a water outlet frame, and the interface of the water outlet frame is in the shape of a funnel.
[0017] Preferably, the measuring cylinder includes multiple independent detachable sleeves, wherein the top and bottom sleeves are open on only one side.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] Water from the paddy field is guided through a through-hole into the measuring cylinder. As the water flows through the through-hole, its special shape causes it to spiral upwards, generating centrifugal force that rotates the water inside the measuring cylinder. This prevents water from accumulating inside the cylinder and thus avoids the accumulation of impurities on the bottom surface of the float, improving the accuracy of the test. Attached Figure Description
[0020] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:
[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;
[0022] Figure 2 This is a cross-sectional three-dimensional structural diagram of the present invention;
[0023] Figure 3 This utility model Figure 2 Enlarged cross-sectional three-dimensional structural diagram at point A in the middle;
[0024] The diagram shows the following labels: 1. Mounting base; 2. Measuring cylinder; 3. Float; 4. Through hole. Detailed Implementation
[0025] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.
[0026] Example
[0027] like Figure 1-3As shown, a device for monitoring water levels in paddy fields includes:
[0028] Mounting base 1, one end of which is provided with a scale;
[0029] Measuring cylinder 2 is mounted on the graduated side of mounting base 1, and a water inlet space is provided inside measuring cylinder 2;
[0030] Floating component 3, including
[0031] A float, which is located inside the water inlet space;
[0032] A vertical rod, one end of which is connected to the top surface of the float, and the other end extends through the surface of the measuring cylinder 2. In the initial state, the top end of the vertical rod is located at the initial point of the scale.
[0033] Through hole 4 is provided on the bottom surface of measuring cylinder 2, and through hole 4 is connected to the water inlet space;
[0034] The bottom of the measuring cylinder 2 is placed in the paddy field water level. The water flows into the measuring cylinder 2 through the through hole 4. The buoyancy pushes the float to move upward, and the vertical rod moves on the scale.
[0035] Specifically: When it is necessary to measure the water flow inside a paddy field, the measuring cylinder 2 is directly installed on the graduated side of the mounting base 1 using bolts. After installation, the top end of the vertical rod is at the initial point of the graduation. Then, holding the device, the bottom end of the device is directly immersed into the paddy field to be measured. At this time, the mounting base 1 is pushed vertically downward, and the mounting base 1 moves the measuring cylinder 2, thus moving it to the deeper part of the water. At this time, the water flow inside the paddy field flows directly into the measuring cylinder 2 through the through hole 4. The water flow inside the measuring cylinder 2 contacts the ground of the float. Due to the buoyancy of the water, the float moves upward. At this time, the vertical rod moves upward synchronously under the movement of the float. When the bottom of the mounting base 1 contacts the bottom of the paddy field, the measuring cylinder 2 is placed for a while. After the float stabilizes, the position of the top end of the vertical rod on the graduation line is read to obtain the depth of the paddy field water, thus simplifying the paddy field water level measurement operation and improving efficiency.
[0036] In this embodiment: along the water flow path, the inner wall of the through hole 4 is spirally ascending, and the diameter of the through hole 4 gradually decreases along the water flow path.
[0037] Specifically: When water flows from inside the paddy field into the measuring cylinder 2, the water rises along the spiral inner wall, forming a "spiral upward flow" similar to a tornado. This causes the water entering the measuring cylinder 2 to generate centrifugal force, causing it to rotate and impact the bottom of the float. The rotating water prevents the water from remaining relatively still, thus avoiding water accumulation inside the measuring cylinder 2 and preventing impurities from accumulating on the bottom surface of the float, thereby improving the accuracy of the detection.
[0038] In this embodiment: In the initial state, the center of the through hole 4 and the center of the float are in the same vertical direction.
[0039] Specifically: When measuring, the water flow outside the paddy field directly impacts the center of the float through the through hole 4, and the force is uniform at each point on the bottom of the float, ensuring that the float always rises vertically along the measuring cylinder 2, thus avoiding the problems of "tilting and jamming" and "uneven force" from the root. At the same time, it can strengthen the vertical thrust of the water flow on the float and improve the response sensitivity of the float.
[0040] In this embodiment: the water outlet end of the through hole 4 is connected to a water outlet frame, and the interface of the water outlet frame is in the shape of a funnel.
[0041] Specifically, the funnel-shaped water outlet frame, with its flared structure of "small inlet and large outlet," transforms the concentrated high-speed water flow from through-hole 4 into a uniformly diffused annular flow. After entering the outlet frame through through-hole 4, the water flow gently diffuses outwards along the inner wall of the funnel, ultimately acting uniformly on the bottom of the float in a "surface contact" manner, rather than a "point impact." This buffering effect completely eliminates the influence of turbulence on the float, allowing it to rise steadily and the top of the vertical rod to precisely align with the scale line, enabling readings to be taken without waiting for stabilization, thus improving efficiency and reducing errors.
[0042] In this embodiment: the measuring cylinder 2 includes multiple independent detachable sleeves, wherein the top and bottom sleeves are only open on one side.
[0043] Specifically: When it is necessary to assemble the measuring cylinder 2, multiple measuring cylinders 2 can be directly installed through the threads between them. After installation, the assembled measuring cylinder 2 can be directly installed on one side of the mounting base 1 using bolts. When cleaning or transportation is required, multiple measuring cylinders 2 can be directly disassembled and transported or cleaned. This solves the pain points of traditional integrated measuring cylinder 2, such as "fixed measuring range, difficult cleaning, inconvenient transportation, and need for complete replacement after damage", and improves the practicality of the device.
[0044] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. An apparatus for monitoring water level in a paddy field, characterized by: include: The mounting base has a scale on one end of its surface. A graduated cylinder is provided on the graduated side of the mounting base, and the interior of the graduated cylinder is provided with a water inlet space; Floating components, including A float is disposed inside the water inlet space; A vertical rod, one end of which is connected to the top surface of the float, and the other end of which extends through the surface of the measuring cylinder. In the initial state, the top end of the vertical rod is located at the initial point of the scale. A through hole is provided on the bottom surface of the measuring cylinder, and the through hole is in communication with the water inlet space; The bottom of the measuring cylinder is placed in the water level of the paddy field. Water flows into the measuring cylinder through the through hole, and the buoyancy pushes the float upward, while the vertical rod moves on the scale.
2. The device for monitoring paddy field water levels according to claim 1, characterized in that: Along the water flow path, the inner wall of the through hole is spirally upward, and the diameter of the through hole gradually decreases along the water flow path.
3. The device for monitoring paddy field water levels according to claim 2, characterized in that: In the initial state, the center of the through hole and the center of the float are in the same vertical direction.
4. The device for monitoring paddy field water levels according to claim 3, characterized in that: The outlet end of the through hole is externally connected to an outlet frame, and the outlet frame has a funnel-shaped interface.
5. The device for monitoring paddy field water levels according to claim 1, characterized in that: The measuring cylinder includes multiple independent detachable sleeves, wherein the top and bottom sleeves are open on only one side.