A type of flood control buoy for water conservancy projects

Abstract

This utility model relates to the field of water conservancy engineering technology, specifically disclosing a flood control buoy for water conservancy projects. It includes a buoy body, a sensor bracket, a positioning chain, and an anchor. The buoy body has a streamlined structure and integrates precision electronic equipment. The sensor bracket is detachably installed at the lower end of the buoy body, forming an inverted conical cantilever beam structure, and at least one sensor is integrated at the lower end of the sensor bracket. The positioning chain is detachably installed at the lower end of the sensor bracket, with its other end connected to the anchor. The anchor is fixed to the bottom of the water conservancy project. This flood control buoy, through its composite graded honeycomb structure sensor bracket, significantly improves its shock resistance and equipment operational reliability under extreme hydrological conditions without sacrificing the accuracy of hydrological data measurement. It provides a more robust, efficient, and maintenance-free real-time monitoring platform for the water conservancy flood control system.

Description

Technical Field

[0001] This utility model belongs to the field of water conservancy engineering technology, specifically, it relates to a flood control buoy for water conservancy projects. Background Technology

[0002] Flood control buoys are advanced monitoring platforms deployed in rivers, lakes, and reservoirs to collect key data such as water level, flow velocity, and flow rate, providing fundamental data support for flood warnings, water resource management, and disaster prevention and mitigation. Among the installation and protection schemes for sensors on flood control buoys, the rigid bracket direct installation mode is the most common. This scheme mainly uses metal or polymer composite material brackets to fix the sensors to the lower or side of the buoy body for data collection. Its advantages include simple structure, low cost, convenient installation and maintenance, limited disturbance to the water flow field under normal water flow conditions, accurate acquisition of hydrological data, and the ability to meet basic monitoring needs in stable water conditions.

[0003] However, with increasing demands for equipment reliability under extreme operating conditions and the growing complexity of challenges faced by water conservancy projects, the limitations of traditional rigid supports have gradually become apparent. For example:

[0004] 1. Traditional rigid support designs focus on structural stability and sensor positioning accuracy under static or quasi-static loads, lacking an effective impact energy absorption mechanism. Therefore, during flood control in water conservancy projects, when encountering strong impacts from high-speed floating objects, the impact load is easily transferred directly to the support body, leading to brittle fracture or severe plastic deformation of the support, causing sensor misalignment, damage, or even failure, resulting in the loss of monitoring capabilities of the buoy during critical flood control periods and causing catastrophic consequences.

[0005] 2. To address the insufficient impact resistance of rigid supports, the industry has introduced metal protective cages for protection. While adding a protective cage can improve resistance to direct impacts to some extent, it significantly interferes with the water flow field around the buoy, distorting velocity measurement data and impairing measurement accuracy. Furthermore, the added metal protective cage significantly increases the overall weight and underwater volume of the buoy, posing challenges to buoyancy design and increasing the difficulty of deployment and recovery. The larger underwater surface area also increases water resistance, potentially causing buoy drift. Therefore, while the metal protective cage improves the equipment's impact resistance, it sacrifices the core accuracy of hydrological measurements.

[0006] Based on this, the present invention proposes a flood control buoy for water conservancy projects to solve the problems existing in the prior art. Utility Model Content

[0007] In view of this, the main purpose of this utility model is to provide an elevator control cabinet to solve the problems of poor impact toughness of the sensor bracket of the existing flood control buoy, which is prone to deformation or breakage when it is hit by high-speed water flow carrying floating objects during flood season; and the damage to measurement accuracy caused by the existing metal protection.

[0008] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0009] A flood control buoy for water conservancy projects, comprising a buoy body, a sensor bracket, a positioning chain, and an anchor;

[0010] The buoy body has a streamlined structure and integrates precision electronic equipment.

[0011] The sensor bracket is detachably installed at the lower end of the buoy body, and has an inverted conical cantilever beam structure. At least one sensor is integrated at the lower end of the sensor bracket.

[0012] The positioning chain is detachably installed at the lower end of the sensor bracket, and the other end is connected to the anchor.

[0013] The ship's anchor is fixed to the bottom of the hydraulic engineering project.

[0014] In a preferred embodiment, a fitting groove is provided on the connecting end face of the upper spherical shell, the fitting groove matches the fitting retaining ring provided on the connecting end face of the lower spherical shell, and an external thread is provided on the outer side of the fitting retaining ring to connect with the internal thread provided on the side wall of the fitting groove.

[0015] In a preferred embodiment, the upper end face of the fitting ring is further provided with a plurality of sealing protrusions, which match the sealing groove at the bottom of the fitting groove.

[0016] In a preferred embodiment, the sensor support flange is connected to the lower part of the buoy body and extends vertically downward into the water. It includes a tapered support body, a flange and a sealing ring disposed at the tail of the support body. The flange is connected to the lower flange connection face of the lower spherical shell, and the sealing ring is located inside the flange and matches the pressure groove at the lower end of the lower spherical shell.

[0017] In a preferred embodiment, a sealing gasket is further provided on the inner side of the pressure groove, and the sealing gasket matches the sealing pressure ring.

[0018] In a preferred embodiment, the support body is a conical composite hierarchical honeycomb structure with a diameter that gradually increases from the bottom up. The composite hierarchical honeycomb structure includes primary honeycomb units and secondary honeycomb units. The primary honeycomb unit is composed of an array of several triangular cross-section units. The secondary honeycomb units are nested inside the primary honeycomb units, and the single-side length of the secondary honeycomb unit is less than the single-side length of the primary honeycomb unit.

[0019] In a preferred embodiment, the wall thickness of the primary cellular unit is less than that of the secondary cellular unit.

[0020] In a preferred embodiment, the support body is a high-toughness composite material component, and a plurality of device holes penetrating the primary and secondary cellular units are provided at the lower end of the support body. The device holes are trapezoidal holes with small openings and large interiors, and are matched with the sensors.

[0021] In a preferred embodiment, the lower end of the support body is further provided with a connecting hole, which matches the positioning chain.

[0022] In a preferred embodiment, the outer surface of the primary honeycomb unit undergoes a special smoothing treatment, resulting in a surface roughness Ra value of less than 0.8 micrometers. Compared with the prior art, this utility model provides a flood control buoy for hydraulic engineering, which has the following beneficial effects:

[0023] 1. This flood control buoy, through its composite graded honeycomb structure sensor support, significantly improves its shock resistance and equipment operational reliability under extreme hydrological conditions without sacrificing the accuracy of hydrological data measurement.

[0024] 2. The sensor support of this flood control buoy requires no external frame, effectively reducing its size during use and providing a more robust, efficient, and maintenance-free real-time monitoring platform for the water conservancy flood control system. It has significant engineering practical value and economic and social value for improving flood early warning capabilities, optimizing water resource management, and ensuring national flood control security.

[0025] This invention addresses the problems of poor impact toughness of existing flood control buoy sensor supports, which are prone to deformation or breakage when subjected to high-speed water flow carrying floating objects during flood season; and the damage to measurement accuracy caused by existing metal protection. Attached Figure Description

[0026] 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 from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the flood control buoy for water conservancy projects according to this utility model;

[0028] Figure 2 This is a cross-sectional view of the main body of the buoy of this utility model;

[0029] Figure 3 This utility model Figure 2 A magnified view of a section at point A in the middle;

[0030] Figure 4 This is a schematic diagram of the sensor bracket of this utility model;

[0031] Figure 5 This is a sectional view of the sensor bracket of this utility model from the front view angle;

[0032] Figure 6 This is a top-view cross-sectional view of the sensor bracket of this utility model.

[0033] [Explanation of Key Component Symbols]

[0034] 1. Buoy body; 11. Upper spherical shell; 111. Threaded hole; 112. Fitting groove; 113. Sealing protrusion; 12. Lower spherical shell; 121. Pressure groove; 122. Fitting retaining ring; 13. Mounting plate; 14. Buffer cavity; 15. Sealing gasket; 2. Sensor bracket; 21. Bracket body; 211. Primary cellular unit; 212. Secondary cellular unit; 22. Flange; 23. Sealing pressure ring; 24. Equipment hole; 25. Connection hole; 3. Positioning chain; 4. Anchor. Detailed Implementation

[0035] The structure of the flood control buoy for water conservancy projects will be further described in detail below with reference to the accompanying drawings and embodiments of this utility model.

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments as described in this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0038] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0039] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0040] As per the instruction manual Figures 1-6 As shown, this utility model provides a technical solution:

[0041] A flood control buoy for hydraulic engineering is designed to improve the buoy's impact resistance and accuracy in hydrological parameter measurement under complex hydrological environments, especially when encountering high-speed currents carrying floating debris. This overcomes the common problems in existing technologies where sensor supports are easily damaged under extreme conditions and measurement accuracy is compromised. The buoy includes a buoy body 1, a sensor support 2, a positioning chain 3, and an anchor 4. The buoy body 1 has a streamlined teardrop or hemispherical structure, used to float on the water surface, and provides stable support and reliable protection for the integrated electronic equipment, data acquisition and transmission unit, and energy supply module. The sensor support 2 is detachably installed at the lower end of the buoy body 1, and has an overall inverted conical cantilever beam structure. At least one sensor is integrated or accommodated at the lower end of the sensor support 2. The positioning chain 3 is detachably installed at the lower end of the sensor support 2, and its other end is connected to the anchor 4, enabling a movable connection between the sensor support 2 and the anchor 4. The anchor 4 is anchored to the bottom of the hydraulic engineering structure for positioning the buoy body 1.

[0042] In one specific implementation, such as Figure 1 , Figure 2 and Figure 3 As shown, the buoy body 1 includes a detachably connected upper spherical shell 11 and a lower spherical shell 12. The upper spherical shell 11 and the lower spherical shell 12 are threadedly connected, and a sealed cavity is formed between the upper spherical shell 11 and the lower spherical shell 12. An equipment mounting plate 13 is installed in the lower spherical shell 12, which is used to install and fix electronic equipment, data acquisition and transmission units, and energy supply modules for water level and flood control monitoring during use.

[0043] Specifically, the outer surfaces of the upper spherical shell 11 and the lower spherical shell 12 are both spherical shells to minimize water flow resistance and improve stability under wave conditions.

[0044] Specifically, both the upper spherical shell 11 and the lower spherical shell 12 are provided with hollow interlayers, and several non-communicating buffer cavities 14 are formed in the hollow interlayers. The buffer cavities 14 are sealed cavities and are not interconnected with each other, so that even if some structures are damaged, the buoy body 1 can still maintain sufficient buoyancy, while avoiding water intrusion that could damage the internal precision electronic equipment.

[0045] Specifically, the upper end of the upper spherical shell 11 is also provided with a threaded hole 111, so as to connect an antenna rod for mounting a communication antenna through the threaded hole 111.

[0046] Specifically, a fitting groove 112 is reserved on the connecting end face of the upper spherical shell 11. The fitting groove 112 is used in conjunction with a fitting retaining ring 122 provided on the connecting end face of the lower spherical shell 12. An external thread is provided on the outer side of the fitting retaining ring 122 and a threaded connection is provided on the side wall of the fitting groove 112 to realize the threaded connection between the upper spherical shell 11 and the lower spherical shell 12.

[0047] More specifically, a number of sealing protrusions 113 are provided on the upper end surface of the fitting ring 122 to cooperate with the sealing groove at the bottom of the fitting groove 112, so as to prevent external water from entering the buoy body 1 after installation and causing damage to the internal precision electronic equipment.

[0048] In one specific implementation, such as Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, the sensor bracket 2 is installed at the lower part of the buoy body 1 via a connecting bolt flange and extends vertically downward into the water. It includes a conical bracket body 21, a flange 22 and a sealing ring 23 located at the tail of the bracket body 21. The flange 22 is provided with several bolt holes that connect to the lower flange connection end face of the lower spherical shell 12. The sealing ring 23 is located inside the flange 22 and cooperates with the pressure groove 121 at the lower end of the lower spherical shell 12 to achieve a stable connection between the lower spherical shell 12 and the sensor bracket 2.

[0049] Specifically, a sealing gasket 15 is provided on the inner side of the pressure groove 121. The sealing gasket 15 works in conjunction with the sealing pressure ring 23 to ensure the sealing at the connection end face between the lower spherical shell 12 and the sensor bracket 2 after installation. It also provides additional cushioning to absorb minor vibrations and impacts.

[0050] Specifically, the support body 21 is a conical composite hierarchical honeycomb structure with a diameter gradually increasing from the bottom upwards. This structure includes primary honeycomb units 211 and secondary honeycomb units 212. The primary honeycomb units form the outer skeleton structure of the support body 21, consisting of an array of large-sized triangular cross-section units arranged closely to cover the outer area of ​​the support. The secondary honeycomb units 212 are nested within the primary honeycomb units 211, forming a "honeycomb within a honeycomb" buffer structure. The length of one side of the secondary honeycomb unit 212 is shorter than that of the primary honeycomb unit 211. This design helps maintain the core stability of the overall structure when the external primary honeycomb unit 211 deforms and absorbs energy, providing robust protection for the mounted sensor and ensuring relative stability of the sensor's position.

[0051] More specifically, the outer surface of the primary honeycomb unit 211 is specially smoothed, with a surface roughness Ra value of less than 0.8 micrometers, which further reduces water flow resistance and algae adhesion.

[0052] More specifically, the wall thickness of the primary honeycomb unit 211 is less than that of the secondary honeycomb unit 212. This allows the primary honeycomb unit 211 to dissipate impact energy through greater elastic deformation and subsequent plastic buckling deformation under external impact. This thin-walled design enables the primary honeycomb unit 211 to undergo controlled plastic crushing after reaching its yield limit, effectively converting kinetic energy into heat energy, thus achieving the first level of impact energy absorption at the structural level. The inner secondary honeycomb unit 212 has a relatively thicker wall and uses more material, thus providing significantly higher structural stiffness and compressive strength. When the outer primary honeycomb unit 211 undergoes plastic deformation under high-energy impact, the inner secondary honeycomb unit 212, with its high stiffness characteristics, can effectively resist deformation, ensuring that the core area of ​​the sensor support maintains structural integrity and preventing the sensor body from being subjected to direct, destructive impacts.

[0053] Specifically, the support body 21 is a high-toughness composite material component. This composite material has significantly improved its toughness and energy absorption capacity through nanoscale toughening modification technology.

[0054] Specifically, a number of device holes 24 penetrating the primary cellular unit 211 and the secondary cellular unit 212 are provided at the lower end of the support body 21. The device holes 24 are trapezoidal holes with small openings and large interiors, which are used to install sensors. Through its structural design of small openings and large interiors, it can effectively prevent the sensors from being directly damaged when floating objects collide with them.

[0055] It should be noted that the sensors include water level gauge probes and flow meters, etc. The aforementioned water level gauge probes and flow meters are all existing technologies known to those skilled in the art, and will not be described in detail here.

[0056] Specifically, the lower end of the bracket body 21 is also provided with a connection hole 25, which is used in conjunction with the positioning chain 3.

[0057] The construction process and implementation principle of the flood control buoy for water conservancy projects described in this utility model include:

[0058] 1. Under normal water flow conditions, i.e., without impact from floating objects, the sensor bracket 2 maintains its preset structural rigidity, ensuring the stable operation and accurate data acquisition of the mounted hydrological sensor. In this state, the composite hierarchical honeycomb structure achieves significant structural lightweighting through its numerous internal cavities, thereby reducing the overall load and manufacturing cost of the buoy.

[0059] 2. When the sensor bracket 2 is impacted by a low-energy floating object (such as a small twig, clump of weeds, or a plastic bottle), the impact force first acts on the outer primary honeycomb unit 211. Because the primary honeycomb unit 211 has a relatively thin wall and the material has high toughness, it mainly undergoes elastic bending deformation. During this process, the honeycomb wall of the primary honeycomb unit 211 undergoes local buckling and bending near the impact point, converting the kinetic energy of the floating object into the elastic strain energy of the material. This elastic deformation effectively absorbs the kinetic energy from the low-energy impact. This process ensures the bracket's instantaneous impact response capability and subsequent self-recovery function, eliminating the need for manual intervention or maintenance, greatly extending the equipment's maintenance cycle, and reducing operating costs.

[0060] 3. When the sensor support 2 is subjected to a strong impact from a high-energy floating object (such as a large tree trunk, building debris, or a clump of garbage), the impact energy exceeds the elastic deformation limit of the primary honeycomb unit 211. At this time, the primary honeycomb unit 211 undergoes controllable buckling deformation and plastic crushing. During the crushing process, the geometry of the primary honeycomb unit 211 collapses, and the honeycomb wall material undergoes plastic bending, folding, and compaction. In this process, a large amount of kinetic energy is converted into heat energy dissipation through the plastic deformation of the material, thereby significantly reducing the peak impact load transmitted to the internal structure. At the same time, the internal secondary honeycomb unit 212, due to its relatively thick wall and higher structural stiffness, only undergoes minor elastic deformation when the external primary honeycomb unit 211 absorbs energy and deforms. When the honeycomb wall of the secondary honeycomb unit 212 is subjected to residual impact load, its stress level is far below the yield limit, ensuring its structural integrity. The core function of the secondary cellular unit 212 is to maintain the overall structural integrity of the sensor support, ensuring that the positions of the internally mounted hydrological sensors (such as water level gauge probes and current meter sensor bodies) remain essentially unchanged, with their deformation displacement within an acceptable range of 0.5 mm. This avoids direct and destructive impacts on the sensors, ensuring the continuity of sensor function and the stability of data acquisition. Even if the external primary cellular unit partially collapses under extreme impact, the sensor support still possesses sufficient residual stiffness and strength to support the sensor's continued stable operation until the end of the flood season or during unified planned maintenance, significantly improving the operational reliability and emergency response capability of the flood control buoy.

[0061] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A flood-prevention buoy for hydraulic engineering, characterized in that, It includes the buoy body (1), sensor bracket (2), positioning chain (3) and anchor (4); The buoy body (1) has a streamlined structure and integrates precision electronic equipment. The buoy body (1) includes a detachably connected upper spherical shell (11) and a lower spherical shell (12). The sensor bracket (2) is detachably installed at the lower end of the buoy body (1), and has an inverted conical cantilever beam structure. At least one sensor is integrated at the lower end of the sensor bracket (2). The positioning chain (3) is detachably installed at the lower end of the sensor bracket (2), and the other end is connected to the anchor (4); The anchor (4) is anchored at the bottom of the water conservancy project.

2. A flood-prevention buoy for hydraulic engineering according to claim 1, characterized in that, The upper spherical shell (11) has a pre-reserved fitting groove (112) on the connecting end face. The fitting groove (112) matches the fitting ring (122) on the connecting end face of the lower spherical shell (12). The fitting ring (122) has an external thread on the outside and an internal thread on the side wall of the fitting groove (112) for threaded connection.

3. A flood-prevention buoy for hydraulic engineering according to claim 2, characterized in that, The upper surface of the fitting ring (122) is also provided with a number of sealing protrusions (113), which match the sealing groove at the bottom of the fitting groove (112).

4. A flood control buoy for water conservancy projects as described in claim 1, characterized in that, The sensor bracket (2) is flanged and connected to the lower part of the buoy body (1) and extends vertically downward into the water. It includes a conical bracket body (21), a flange (22) and a sealing ring (23) set at the tail of the bracket body (21). The flange (22) is connected to the lower flange connection end face of the lower spherical shell (12). The sealing ring (23) is located inside the flange (22) and matches the pressure groove (121) at the lower end of the lower spherical shell (12).

5. A flood control buoy for water conservancy projects as described in claim 4, characterized in that, A sealing gasket (15) is also provided on the inner side of the pressure groove (121), and the sealing gasket (15) matches the sealing pressure ring (23).

6. A flood control buoy for water conservancy projects as described in claim 4, characterized in that, The main body of the support (21) is a conical composite hierarchical honeycomb structure with a diameter that gradually increases from the bottom to the top. The composite hierarchical honeycomb structure includes a primary honeycomb unit (211) and a secondary honeycomb unit (212). The primary honeycomb unit is composed of an array of several triangular cross-section units. The secondary honeycomb unit (212) is nested inside the primary honeycomb unit (211), and the length of one side of the secondary honeycomb unit (212) is less than the length of one side of the primary honeycomb unit (211).

7. A flood control buoy for water conservancy projects as described in claim 6, characterized in that, The wall thickness of the primary cellular unit (211) is less than the wall thickness of the secondary cellular unit (212).

8. A flood control buoy for water conservancy projects as described in claim 4, characterized in that, The support body (21) is a high-toughness composite material component, and a number of device holes (24) penetrating the primary cellular unit (211) and the secondary cellular unit (212) are provided at the lower end of the support body (21). The device holes (24) are trapezoidal holes with small openings and large interiors, and are matched with the sensors.

9. A flood control buoy for water conservancy projects as described in claim 4, characterized in that, The lower end of the support body (21) is also provided with a connection hole (25), which is matched with the positioning chain (3).

10. A flood control buoy for water conservancy projects as described in claim 6, characterized in that, The outer surface of the primary cellular unit (211) is smoothed, and its surface roughness Ra value is less than 0.8 micrometers.

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