A water conservancy project water level monitoring device
By using a floating plate and filter hole design inside a transparent hollow measuring column in the water level monitoring device, combined with a fixing box and filter screen, the problems of easy entanglement of the float and unstable underwater fixation are solved, thus achieving stability and data reliability in water level monitoring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINTAI CITY DONGZHOU RESERVOIR MANAGEMENT CENT
- Filing Date
- 2025-06-20
- Publication Date
- 2026-05-29
Smart Images

Figure CN224303121U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water level monitoring technology, specifically a water level monitoring device for water conservancy projects. Background Technology
[0002] Water level monitoring in water conservancy projects is a cornerstone for ensuring project safety, optimizing water resource allocation, and supporting scientific decision-making. It directly relates to the realization of key functions such as flood control and disaster reduction, precision irrigation, efficient water resource utilization, and ecological flow assurance. However, traditional float-type water level monitoring devices have long faced two major challenges in practical applications: First, their key sensing component—the float—is easily entangled, clogged, or even jammed by aquatic plants, garbage, and silt in waters with high sediment content or abundant floating debris, leading to measurement failure or a significant decrease in accuracy. Second, their underwater fixed structure often experiences subsidence, tilting, or even overall displacement in environments with soft riverbeds or rapid currents due to insufficient grip or scouring, resulting in inaccurate measurement benchmarks and difficulty in ensuring data reliability. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a water level monitoring device for hydraulic engineering projects, which solves the problems of floats being easily entangled by floating debris and the instability of underwater fixed structures.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a water level monitoring device for water conservancy projects, comprising a measuring column, wherein the measuring column is made of transparent material and is hollow with an opening at the top;
[0005] The measuring column is equipped with a support column and a float plate inside. The float plate slides on the support column. One end of the support column is connected to the bottom of the measuring column, and the other end is fixedly connected to the conical cover.
[0006] The measuring column has graduations on its outer side and multiple water inlets at its bottom. The lower end of the measuring column is fixed inside a fixed box, which has multiple filter holes on its side wall and an inspection door on one side.
[0007] Preferably, a solar panel is installed on one side of the top surface of the conical cover, and a camera and an alarm are installed inside the bottom surface of the conical cover.
[0008] Preferably, the floating plate has a first through hole in the middle, and the floating plate is movably connected to the support column through the first through hole. The outer wall of the floating plate is in contact with the inner wall of the measuring column, and multiple second through holes are provided on the body of the floating plate.
[0009] Preferably, a filter screen is provided on the outside of the filter holes around the fixed box.
[0010] Preferably, the measuring column is made of polycarbonate.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] By incorporating a floating plate within the hollow measuring column, along with dual filtration via filter holes and a filter screen, the system effectively prevents the floating plate from becoming entangled or clogged by aquatic plants, debris, and silt. A fixed mounting box allows for adjustable counterweight design, ensuring stable underwater installation. A top-mounted camera supports remote real-time water level monitoring, and a smart alarm triggers both an on-site alarm and wireless signal transmission in case of abnormal water levels. Solar panels provide stable power to the equipment, ensuring long-term reliable operation. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a schematic diagram of the internal structure of this utility model cut out.
[0015] Figure 3 This is an enlarged structural schematic diagram of the fixing box 1 of this utility model.
[0016] The components include: 1. Fixed box; 101. Filter hole; 102. Inspection door; 103. Filter screen; 2. Measuring column; 201. Scale; 202. Water inlet; 3. Support column; 4. Conical cover; 5. Solar panel; 6. Floating plate; 601. First through hole; 602. Second through hole; 7. Camera; 8. Alarm. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Please see Figure 1 - Figure 3 The present invention provides a technical solution: including a measuring column 2, which is a transparent, hollow measuring column with an open top;
[0019] The measuring column 2 is equipped with a support column 3 and a float plate 6. The float plate 6 slides on the support column 3. One end of the support column 3 is connected to the bottom of the measuring column 2, and the other end is fixedly connected to the conical cover 4.
[0020] The outer side of the measuring column 2 is engraved with scale 201, the bottom of the measuring column 2 is provided with multiple water inlet holes 202, the lower end of the measuring column 2 is fixed in the fixed box 1, the side wall of the fixed box 1 is provided with multiple filter holes 101, and one side of the fixed box 1 is provided with an inspection door 102.
[0021] Through the above technical solution, a floating plate 6 is installed inside the measuring column 2. The filter holes 101 on the side wall of the fixed box 1 effectively prevent the floating plate 6 from being entangled by floating debris in the water. When installing this utility model, the inspection door 102 on one side of the fixed box 1 can be opened, and counterweights can be added inside the fixed box 1 according to the water flow velocity to ensure stable underwater installation. During maintenance, the inspection door 102 can be opened to facilitate regular cleaning of the filter holes 101 and internal impurities, ensuring long-term stable operation.
[0022] This utility model provides a technical solution: a solar panel 5 is provided on one side of the top surface of the conical cover 4, and a camera 7 and an alarm 8 are provided inside the bottom surface of the conical cover 4;
[0023] The camera 7 captures the position of the floating board 6 in real time and uploads the image to the remote monitoring device. When the water level exceeds the preset threshold (such as the flood warning line), the on-site alarm and wireless signal transmission are triggered simultaneously. The solar panel 5 on the top surface of the conical cover 4 provides stable power to the camera 7 and the alarm 8.
[0024] This utility model provides a technical solution: a filter screen 103 is provided on the outside of the filter holes 101 around the fixed box 1;
[0025] The filter screen 103, together with the filter hole 101, forms a dual filter to further filter impurities and prevent debris from entering the housing of the fixed box 1.
[0026] This utility model provides a technical solution: the measuring column 2 is made of polycarbonate;
[0027] Polycarbonate has 250 times the impact resistance of ordinary glass, making it suitable for outdoor environments and reducing maintenance needs caused by external forces. With a light transmittance of >90%, it ensures clear readings of the 201 scale and can withstand a temperature range of -40℃ to 120℃, adapting to seasonal temperature differences and exposure to sunlight.
[0028] The working principle of this utility model is as follows:
[0029] First, transport the utility model to the required installation location, then open the inspection door 102 of the fixing box 1, add a counterweight to the fixing box 1 to complete the installation. During operation, external water flows into the box through the filter hole 101 on the side wall of the fixing box 1. The outer filter screen 103 further filters impurities. The water flows into the transparent column through the water inlet 202 at the bottom of the measuring column 2, so that the water level inside the column is balanced with the external water in real time. The rise in the water level inside the column pushes the floating plate 6 to rise vertically along the support column 3, eliminating horizontal deviation. At this time, the staff can observe the real-time water level from the outside according to the scale 201 on the measuring column 2. The camera 7 captures the position of the floating plate 6 in real time and uploads the image to the remote monitoring device. When the water level exceeds the preset threshold (such as the flood warning line), the on-site alarm and wireless signal transmission are triggered simultaneously. The solar panel 5 on the top surface of the conical cover 4 provides stable power to the camera 7 and the alarm 8.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A water level monitoring device for water conservancy projects, characterized in that: Includes a measuring column (2), which is a transparent, hollow measuring column with an open top; The measuring column (2) is equipped with a support column (3) and a floating plate (6). The floating plate (6) slides on the support column (3). One end of the support column (3) is connected to the bottom of the measuring column (2), and the other end is fixedly connected to the conical cover (4). The outer side of the measuring column (2) is engraved with scale (201), and the bottom of the measuring column (2) is provided with multiple water inlet holes (202). The lower end of the measuring column (2) is fixed in the fixed box (1). The side wall of the fixed box (1) is provided with multiple filter holes (101), and the side of the fixed box (1) is provided with an inspection door (102).
2. The water level monitoring device for water conservancy projects according to claim 1, characterized in that: A solar panel (5) is installed on one side of the top surface of the conical cover (4), and a camera (7) and an alarm (8) are installed inside the bottom surface of the conical cover (4).
3. The water level monitoring device for water conservancy projects according to claim 1, characterized in that: The floating plate (6) has a first through hole (601) in the middle. The floating plate (6) is connected to the support column (3) through the first through hole (601). The outer wall of the floating plate (6) is in contact with the inner wall of the measuring column (2). The floating plate (6) has multiple second through holes (602) on its body.
4. The water level monitoring device for water conservancy projects according to claim 1, characterized in that: A filter screen (103) is provided on the outside of the filter holes (101) around the fixed box (1).
5. A water level monitoring device for water conservancy projects according to claim 1, characterized in that: The measuring column (2) is made of polycarbonate.