Low-gravity-center buoy anchoring system and buoy type water level monitoring device
By using a dual-media counterweight system consisting of a central water tank and an annular sand tank, along with a grid structure, the problems of high center of gravity and loose connections in buoy-type water level monitoring devices have been solved, achieving stability and accuracy of monitoring data in complex water areas.
Patent Information
- Application Number
- CN202511344758.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-19
- Publication Date
- 2025-11-11
AI Technical Summary
The existing buoy-type water level monitoring device has a high center of gravity in its anchoring system, which leads to poor stability due to water sloshing. The connection method is also prone to loosening, making it unable to adapt to the dynamic requirements of complex water areas and different types of monitoring devices. Furthermore, the water level monitoring data is prone to deviation.
It adopts a dual-medium counterweight system consisting of a central water tank and an annular sand tank, combined with a grid structure to reduce water sloshing, and achieves a stable connection through connecting components to adapt to different environmental needs.
It effectively lowers the center of gravity, enhances device stability, adapts to various complex water areas, ensures a stable connection, and guarantees the accuracy of monitoring data.
Smart Images

Figure CN120922291A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a low center of gravity buoy anchoring system and a buoy-type water level monitoring device, which enables the water level monitoring device to operate stably. It belongs to the field of buoy anchoring technology, and specifically relates to a low center of gravity buoy anchoring system and a buoy-type water level monitoring device that uses a dual-medium counterweight system consisting of a central water tank and an annular sand tank, combined with a grid to reduce water sloshing, lower the center of gravity, and enhance stability, and uses connecting components to achieve a stable connection of the device to avoid damage. Background Technology
[0002] In fields such as hydrological monitoring and water conservancy engineering, buoy-type water level monitoring devices have become commonly used equipment for collecting water level information due to their convenience and ability to acquire data in real time. Their anchoring and counterweight systems are crucial for ensuring monitoring stability; however, existing technologies have several shortcomings. Currently, most mainstream buoy-type water level monitoring devices use a single counterweight mode for anchoring, such as adding a metal counterweight block to the bottom of the device, or simply combining a "water tank + fixed counterweight," resulting in a relatively crude structural design. In particular, a single metal counterweight can easily cause the device's center of gravity to be too high, and a simple water tank cannot effectively restrict water movement, causing significant water sloshing within the tank, which in turn exacerbates the device's swaying. This makes it difficult to adapt to complex water conditions (such as rapid currents and areas with high winds and waves) and the dynamic needs of different monitoring device models, and it is impossible to accurately control the center of gravity to resist external interference. Furthermore, when the water tank is working, the energy generated by water sloshing is not sufficiently attenuated, resulting in poor overall stability of the device, which in turn leads to deviations in water level monitoring data due to buoy swaying. In addition, existing connection methods (such as simple bolts and easily detachable clips) are prone to loosening and falling off under the action of water flow and external force, which cannot achieve a stable connection. Once the connection fails, it may cause the device to tilt and the monitoring to be interrupted.
[0003] CN116331410A discloses an anti-overturning water quality monitoring buoy, including a float assembly; a sealed box disposed on top of the float assembly, with a vertical pole fixed to the top of the sealed box, the pole supporting a photovoltaic module; and a side float component, including a fan-shaped float plate, with a bushing fixed to the float plate, the bushing being rotatably connected to the pole, allowing the float plate to rotate around the pole. A vertical plate is fixed to the surface of the float plate, the vertical plate being parallel to the axis of the pole. In this invention, the float plate is rotatably installed on the surface of the pole. The vertical plate on the surface of the float plate will move in the direction of the wind under the action of wind force, and make the vertical plate parallel to the wind direction. The float plate rotates to the tilting direction of the device. When the device tilts due to wind and waves, the float plate contacts the water surface, increasing the floating support area on the tilting side and increasing the buoyancy on the tilting side, thus preventing the device from tilting excessively due to wind and waves and causing overturning. However, the above-mentioned devices mainly rely on wind power and the contact between the floating plate and the water surface to increase buoyancy. In the case of low wind or no wind, the function of the floating plate may be limited, thus affecting the anti-tipping effect of the device, and the applicable scenarios are relatively narrow. Summary of the Invention
[0004] To improve the above situation, the present invention provides a low center of gravity buoy anchoring system and buoy-type water level monitoring device. This system uses a dual-media counterweight system consisting of a central water tank and an annular sand tank, combined with a grid to reduce water sloshing, lower the center of gravity, and enhance stability. A connecting component ensures a stable connection of the device to avoid damage.
[0005] The present invention discloses a low center of gravity buoy anchoring system and a buoy-type water level monitoring device, which are implemented as follows: The low center of gravity buoy anchoring system and buoy-type water level monitoring device of the present invention include a counterweight assembly, a connecting assembly, and a water level monitoring device. The characteristic feature is that the top end of the connecting component is fixedly connected to the water level monitoring device, and the bottom end of the connecting component is fixedly connected to the counterweight component, thereby providing a stable connection between the counterweight component and the water level monitoring device. The counterweight assembly includes a central water tank, an air vent valve, an observation window, a one-way duckbill valve, an annular sand bin, a feeding port, a first grid, and a second grid. The central water tank has a hollow cylindrical structure. Preferably, the cross-sectional diameter of the central water tank gradually increases from the top to three-fifths of the way down, and remains constant from three-fifths of the way down to the bottom. An air vent valve is installed at the top of the central water tank. The central water tank is equipped with an observation window on its sloping side. Preferably, the observation window is made of polymethyl methacrylate. A detachable one-way duckbill valve is provided at the bottom center of the central water tank. The annular sand silo is fixedly connected to the central water silo near its bottom side. The annular sand silo has a circular structure and a hollow interior. The annular sand silo is equipped with a feeding port at the top. The first grille is fixedly connected to the inner side of the central water tank. Preferably, the first grille is positioned two-fifths of the way down from the bottom of the central water tank in the height direction. The second grille is fixedly connected to the inner side of the central water tank. Preferably, the second grille is positioned two-thirds of the way up from the bottom of the central water tank. The width of the holes in the first grid is greater than the width of the holes in the second grid. The connecting assembly includes a second connecting ring, a first connecting ring, a clamp, and a fixing screw. The second connecting ring is fixedly connected to the center of the top surface of the central water tank. The first connecting ring is fixedly connected to the middle of the bottom surface of the water level monitoring device. The two clamps are placed on the sides of the first connecting ring and the second connecting ring, and are fixedly connected by fixing screws. Furthermore, the bottom of the central water tank is provided with a drainage slope, which is a ring-shaped structure, and its bottom surface and outer ring surface are fixedly connected to the bottom surface and side surface of the central water tank, respectively. The height of the drainage slope gradually decreases from the outer ring surface to the inner ring surface. Furthermore, the first and second grilles are replaced by the third and fourth grilles, respectively. The water passages on the third and fourth grilles are circular, and the diameter of the water passage on the third grille is larger than the diameter of the water passage on the fourth grille. Beneficial effects
[0006] I. The dual-medium counterweight design, combined with the grid structure to reduce the impact of water sloshing, can significantly lower the overall center of gravity, effectively resist external interference such as water flow and waves, and ensure that the device floats stably in the water.
[0007] Second, the special connection structure ensures a tight connection between the various parts, which can effectively prevent the connection from loosening or falling off due to water flow impact, and ensure the normal operation of the device.
[0008] Third, the weight can be flexibly adjusted according to different usage environments and monitoring device requirements, making it adaptable to various complex water scenarios and applicable to a wide range of situations.
[0009] Fourth, the entire device is made of lightweight materials, making it easy to move. Attached Figure Description
[0010] Figure 1 This is a three-dimensional structural diagram of a low center of gravity buoy anchoring system and a buoy-type water level monitoring device according to the present invention. Figure 2 This is a three-dimensional structural diagram of a low center of gravity buoy anchoring system and a buoy-type water level monitoring device according to the present invention. Figure 3 This is a schematic diagram of the structure of a low center of gravity buoy anchoring system and a buoy-type water level monitoring device according to the present invention; Figure 4 This is a schematic diagram of the structure of Embodiment 2 of the present invention, which describes a low center of gravity buoy anchoring system and a buoy-type water level monitoring device. Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the present invention, which describes a low center of gravity buoy anchoring system and a buoy-type water level monitoring device. Attached Figure
[0011] The components are: annular sand bin (1), central water bin (2), water level monitoring device (3), air vent (4), observation window (5), feeding port (6), fixing screw (7), clamp (8), first connecting ring (9), one-way duckbill valve (10), first grid (11), second grid (12), second connecting ring (13), drainage slope (14), third grid (15), and fourth grid (16). Detailed Implementation Example 1
[0012] The present invention provides a low center of gravity buoy anchoring system and a buoy-type water level monitoring device, comprising a counterweight assembly, a connecting assembly and a water level monitoring device (3). The characteristic feature is that the top end of the connecting component is fixedly connected to the water level monitoring device (3), and the bottom end of the connecting component is fixedly connected to the counterweight component, wherein the connecting component securely connects the counterweight component to the water level monitoring device (3). The counterweight assembly includes a central water tank (2), an exhaust valve (4), an observation window (5), a one-way duckbill valve, an annular sand silo (1), a feeding port (6), a first grid, and a second grid. The central water tank (2) has a hollow cylindrical structure. Preferably, the cross-sectional diameter of the central water tank (2) gradually increases from the top to three-fifths of the way down, and remains constant from three-fifths of the way down to the bottom. The central water tank (2) is equipped with an exhaust valve (4) at its top. The central water tank (2) has an observation window (5) on its inclined side. Preferably, the observation window (5) is made of polymethyl methacrylate. The central water tank (2) is equipped with a detachable one-way duckbill valve at the bottom center. The annular sand silo (1) is fixedly connected to the central water silo (2) near its bottom side. The annular sand silo (1) has a circular structure and a hollow interior. The annular sand bin (1) is provided with a feeding port (6) at the top. The first grid is fixedly connected to the inner side of the central water tank (2). Preferably, the first grille is positioned at two-fifths of the distance from the bottom of the central water tank (2) in the height direction. The second grille is fixedly connected to the inner side of the central water tank (2). Preferably, the second grille is positioned two-thirds of the way down from the bottom of the central water tank (2) in the height direction. The width of the holes in the first grid is greater than the width of the holes in the second grid. The connecting assembly includes a second connecting ring, a first connecting ring (9), a clamp (8), and a fixing screw (7). The second connecting ring is fixedly connected to the center of the top surface of the central water tank (2). The first connecting ring (9) is fixedly connected to the middle of the bottom surface of the water level monitoring device (3). The two clamps (8) are placed on the sides of the first connecting ring (9) and the second connecting ring, and are fixedly connected by fixing screws (7). When using the device, calculate the required counterweight based on the environment (such as water flow speed, wave size) and the weight and buoyancy of the water level monitoring device (3), and allocate it reasonably to the weight of sand and the required amount of water. Prepare the corresponding amount of sand and inject the calculated amount of sand into the annular sand silo (1) through the feeding port (6) at the top of the annular sand silo (1) to complete the addition of the sand counterweight. Align the first connecting ring (9) on the bottom of the water level monitoring device (3) with the second connecting ring on the top of the central water silo (2), and place the two clamps (8) on the sides of the first connecting ring (9) and the second connecting ring respectively. Then fix the two clamps (8) with the fixing screws (7) to make the water level monitoring device (3) and the central water silo (2) firmly connected. Place the entire device vertically into the water surface, so that the one-way duckbill valve at the bottom of the central water silo (2) contacts the water surface first. Open the exhaust valve (4) at the top of the central water silo (2). At this time, the water flows through the one-way duckbill valve. The nozzle valve enters the central water tank (2). The water level in the tank is observed through the observation window (5) on the central water tank (2). When the water level reaches the calculated appropriate position, the exhaust valve (4) is closed. At this time, the water flow can no longer enter the central water tank (2) through the one-way duckbill valve. Release your hand, and the device can float on the water surface to monitor the water level. During the operation, when the water in the central water tank (2) shakes due to the water flow, the first grid first disperses and slows down the water flow to weaken the energy of the water shaking. The water flow that has been initially buffered by the first grid is further buffered and stabilized by the second grid. Because its holes are narrow, it can more effectively reduce the amplitude of the water shaking and reduce the impact of the water shaking on the overall stability of the device. After the operation is completed, the entire device is taken out of the water surface, the one-way duckbill valve is removed, the water inside the central water tank (2) is drained, the sand in the annular sand tank (1) is poured out, and the device is cleaned and maintained for the next use. Example 2
[0013] The difference between this embodiment and embodiment 1 is that: the bottom of the central water tank (2) is provided with a drainage slope (14), the drainage slope (14) is in the shape of a ring, and the bottom surface and the outer ring surface are fixedly connected to the bottom surface and the side surface of the central water tank (2) respectively. The height of the drainage slope (14) gradually decreases from the outer ring surface to the inner ring surface. When in use, the drainage slope (14) forms a natural guiding slope, which can guide the water in the central water tank to converge towards the center and be discharged, avoiding water accumulation and ensuring that all water is drained during the drainage stage, which is convenient for precise adjustment of the counterweight according to the needs. Example 3
[0014] The difference between this embodiment and embodiment 1 is that the first grid (11) and the second grid (12) are replaced by the third grid (15) and the fourth grid (16) respectively. The water passage holes on the third grid (15) and the fourth grid (16) are circular, and the diameter of the water passage hole on the third grid (15) is larger than the diameter of the water passage hole on the fourth grid (16). When in use, the water flow is more evenly stressed, which can reduce the generation of local turbulence and avoid the additional disturbance caused by the impact of water flow at the corner of the square hole, further enhancing the suppression effect on the swaying of the water in the water tank. The central water tank (2) has a cross-sectional diameter that gradually increases from the top to three-fifths of the way down, and remains constant from three-fifths of the way down to the bottom. This design allows more of the injected water to be concentrated in the lower part, which helps to lower the center of gravity and enhance the stability of the device. The design of the first grid (11) and the second grid (12) in the central water tank (2), and the width of the holes on the first grid (11) is greater than the width of the holes on the second grid (12), can form a multi-level buffer for the water flow, effectively weaken the energy and amplitude of water sloshing, and reduce the impact on the stability of the device. The design of the annular sand silo (1) having a circular structure and being fixedly connected to the central water silo (2) near the bottom side allows the sand to be distributed on the lower outer periphery of the device, further lowering the overall center of gravity and enhancing the device's ability to resist external interference. The central water tank (2) is provided with an observation window (5) on its inclined side. The observation window (5) is made of polymethyl methacrylate, which allows the operator to observe the water level in the tank directly and provides a clear basis for judging whether the water intake meets the standards. The design of the two clamps (8) in the connection assembly being placed on the sides of the first connecting ring (9) and the second connecting ring (13) and fixedly connected by the fixing screws (7) can realize a stable connection between the water level monitoring device (3) and the central water tank (2) and prevent relative displacement under the impact of water flow. The central water tank (2) is designed with a detachable one-way duckbill valve (10) at the bottom center, which can ensure that water flows into the central water tank (2) in one direction. At the same time, it is easy to disassemble during recycling to quickly drain the water in the tank, thus improving the ease of operation. The goal is to achieve dual-medium counterweight through the central water tank (2) and the annular sand tank (1) of the counterweight assembly, combined with the grid to weaken water sloshing, lower the center of gravity and enhance stability, and achieve a stable connection of the device to avoid damage through the connecting assembly.
[0015] It should be noted that, unless otherwise explicitly specified and limited, the terms "placed," "connected," and "linked" should be interpreted broadly. For example, they can refer to fixed connections such as folded edges, rivets, pins, adhesives, and welds; detachable connections such as threaded connections, snap-fit connections, and hinges; integral connections; electrical connections; direct connections; or indirect connections via an intermediate medium; or internal connections between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.
[0016] It should be further noted that, in order to keep the description simple and clear, the above specific embodiments only describe the differences between them and other embodiments. However, those skilled in the art should know that the above specific embodiments are also independent technical solutions.
[0017] In practical applications, the data processor and controller are all general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0018] The data processor and controller are not limited to a particular brand or model; as mature products on the market, they are readily available. Therefore, this invention does not require a description of the specific structure and shape of the signal converter, data processor, and controller. This invention does not require further explanation. It should be noted that the computer programs loaded on the data processor and controller are not within the scope of this invention. This invention does not protect computer programs. When using this invention, all computer programs require additional loading by those skilled in the art. According to this invention, certain steps can be performed sequentially or simultaneously.
Claims
1. A low center of gravity buoy anchoring system and a buoy-type water level monitoring device, comprising a counterweight assembly, a connecting assembly, and a water level monitoring device, characterized in that: The top of the connecting component is fixedly connected to the water level monitoring device, and the bottom of the connecting component is fixedly connected to the counterweight component. The connecting component securely connects the counterweight component and the water level monitoring device. The counterweight component includes a central water tank, an exhaust valve, a one-way duckbill valve, an annular sand tank, a feeding port, a first grid, and a second grid. The top of the central water tank is equipped with an exhaust valve, and the middle of the bottom of the central water tank is equipped with a detachable one-way duckbill valve. The annular sand tank is fixedly connected to the side of the central water tank near the bottom. The top of the annular sand tank is equipped with a feeding port. The first grid is fixedly connected to the inner side of the central water tank, and the second grid is fixedly connected to the inner side of the central water tank. The connecting component includes a second connecting ring, a first connecting ring, clamps, and fixing screws. The second connecting ring is fixedly connected to the middle of the top surface of the central water tank, and the first connecting ring is fixedly connected to the middle of the bottom surface of the water level monitoring device. The two clamps are placed on the sides of the first and second connecting rings and are fixedly connected by fixing screws.
2. The low center of gravity buoy anchoring system and buoy-type water level monitoring device according to claim 1, characterized in that... The central water tank has a drainage slope at its bottom. The drainage slope has a circular structure, and its bottom surface and outer ring surface are fixedly connected to the bottom surface and side surface of the central water tank, respectively. The height of the drainage slope gradually decreases from the outer ring surface to the inner ring surface.
3. The low center of gravity buoy anchoring system and buoy-type water level monitoring device according to claim 1, characterized in that... The first and second grids are replaced by the third and fourth grids, respectively. The water passages on the third and fourth grids are circular, and the diameter of the water passage on the third grid is larger than the diameter of the water passage on the fourth grid.
4. The low center of gravity buoy anchoring system and buoy-type water level monitoring device according to claim 1, characterized in that... The second grille is positioned two-thirds of the way up from the bottom of the central water tank.
5. A low center of gravity buoy anchoring system and buoy-type water level monitoring device according to claim 1, characterized in that... The central water tank has a hollow cylindrical structure, and an observation window is provided on the inclined side of the central water tank.
6. The low center of gravity buoy anchoring system and buoy-type water level monitoring device according to claim 1, characterized in that... The observation window is made of polymethyl methacrylate.
7. The low center of gravity buoy anchoring system and buoy-type water level monitoring device according to claim 1, characterized in that... The annular sand silo has a circular structure and a hollow interior.
8. A low center of gravity buoy anchoring system and buoy-type water level monitoring device according to claim 1, characterized in that... The first grille is positioned two-fifths of the way up from the bottom of the central water tank.
9. A low center of gravity buoy anchoring system and buoy-type water level monitoring device according to claim 1, characterized in that... The diameter of the cross-section of the central water tank gradually increases from the top to three-fifths of the way down, and remains constant from three-fifths of the way down to the bottom.
10. A low center of gravity buoy anchoring system and buoy-type water level monitoring device according to claim 1, characterized in that... The width of the holes in the first grid is greater than the width of the holes in the second grid.
Citation Information
Patent Citations
Anti-rollover water quality monitoring buoy
CN116331410A