Flow rate monitoring fixture and flow rate monitoring device

Abstract

This invention discloses a fixed device and a flow velocity monitoring device, relating to the technical field of water flow velocity monitoring devices. It includes a measuring component, a fixing component, a rod, and a control system. One end of the rod near the silt is fixedly connected to the fixing component, which is used to fix the rod in the silt. A measuring component is mounted on the fixing component, and a mounting component is slidably mounted on the rod. The mounting component is used to mount a flow velocity meter. The measuring component measures the depth of the silt surface from the water surface and transmits a position signal to the mounting component through the control system, causing the mounting component to move the flow velocity meter according to the depth of the silt surface from the water surface. This allows several flow velocity meters to be uniformly positioned in the water vertically to detect water at various depths. The flow velocity monitoring device includes a flow velocity meter and the aforementioned fixed device. This invention adaptively adjusts the position of the flow velocity meter according to the water depth, adapting to the dynamic changes in lake topography and water level, thus improving monitoring efficiency.

Description

Technical Field

[0001] This invention relates to the field of water flow velocity monitoring devices, and in particular to a fixed device for flow velocity monitoring and a flow velocity monitoring device. Background Technology

[0002] River flow velocity measurement is a crucial component of hydrological monitoring. It helps in understanding the hydrological movement patterns of rivers, assessing water resource conditions, and predicting future hydrological changes. Real-time monitoring of river flow velocity and discharge helps managers understand the distribution and changes in water resources, providing a scientific basis for the rational allocation and management of water resources. In flood control and drainage work, real-time monitoring of flow velocity and discharge can promptly detect abnormal situations such as floods, providing timely and accurate information support for flood warnings and emergency responses. When measuring river velocity, flow velocity measuring devices are commonly used. These devices are placed in the water at a certain depth on the riverbank or on a boat to measure the flow velocity.

[0003] Existing river monitoring devices include multiple current meters, a spacing adjustment mechanism, mounting strips, a floating plate, and a seed plate. The mounting strips are spaced between the floating plate and the counterweight plate, parallel to the floating plate. The current meters are mounted on the mounting strips. The spacing adjustment mechanism, located between the floating plate and the counterweight plate, adjusts the distance between the floating plate and adjacent mounting strips, between two adjacent mounting strips, and between the counterweight plate and adjacent mounting strips, thus placing multiple current meters at different depths in the river. This scheme cannot adaptively adjust the position of the current meters according to the water depth, making it difficult to adapt to the dynamic changes in lake topography and water level, thus reducing monitoring efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a fixed device and a flow velocity monitoring device to solve the problems existing in the prior art. The position of the flow velocity meter is adaptively adjusted according to the water flow depth to adapt to the dynamic changes in lake topography and water level, thereby improving monitoring efficiency.

[0005] To achieve the above objectives, the present invention provides the following solution: This invention provides a fixed device for flow velocity monitoring, including a measuring component, a fixing component, a rod, and a control system. One end of the rod near the silt is fixedly connected to the fixing component, which is used to fix the rod in the silt. The measuring component is mounted on the fixing component. A mounting component is slidably mounted on the rod, and the mounting component is used to mount a flow meter. The measuring component measures the depth of the silt surface from the water surface and transmits a position signal to the mounting component through the control system, causing the mounting component to move the flow meter according to the depth of the silt surface from the water surface. This allows several flow meters to be uniformly positioned in the water vertically to detect water at various depths.

[0006] In one embodiment, the length of the insertion rod is greater than the depth of the silt surface from the water surface.

[0007] In one embodiment, the fixing component includes a plurality of legs rotatably connected to the side of the insertion rod extending near the bottom of the water. The measuring component is slidably connected to the legs and is positioned above the silt to obtain the depth of the silt surface from the water surface.

[0008] In one embodiment, the measuring component includes a pressure sensor positioned above the silt to obtain the depth of the silt surface from the water surface.

[0009] In one embodiment, a limiting ring is further included, on which the pressure sensor is fixedly connected. One of the legs passes through the limiting ring and enters the silt. The limiting ring is located above and in contact with the silt so that the pressure sensor can obtain the water depth.

[0010] In one embodiment, the system further includes a plurality of mounting members, one of which is used to mount one of the flow meters. The mounting member is slidably disposed on the insertion rod and has a locked state and a released state. In the locked state, the flow meter on the mounting member is locked in position with the insertion rod. In the released state, the flow meter on the mounting member can slide with the insertion rod to keep each flow meter evenly distributed in the water.

[0011] In one embodiment, the mounting component has a lifting mechanism and a locking mechanism, both of which are signal-connected to the control system. The locking mechanism has a locked state and a released state. The control system sends a signal to the locking mechanism to switch between the locked state and the released state, and sends a signal to the lifting mechanism to move the mounting component on the insert rod.

[0012] In one embodiment, the lifting mechanism includes a motor and a rotor. The motor is fixedly connected to the mounting component, and the output shaft of the motor is driven by the rotor. The motor drives the rotor to rotate so as to move the mounting component on the insert rod.

[0013] In one embodiment, the locking mechanism includes a locking member and a plurality of limiting grooves, the plurality of limiting grooves being formed on the mounting member, and the control system being able to control the positioning pin of the locking member to enter into the limiting groove and move away from the limiting groove.

[0014] The present invention also discloses a flow velocity monitoring device, including a flow velocity meter and the above-mentioned fixed device for flow velocity monitoring.

[0015] The present invention achieves the following technical effects compared to the prior art: This invention discloses a fixed device for flow velocity monitoring. A fixing component is used to set the insertion rod in the water, a measuring component is used to measure the water depth, and a control system sets the number of installation components for the water depth. The control system controls several flow meters to move to multiple water depth measuring points according to the depth of the silt surface from the water surface. This enables multi-gradient accurate monitoring of dynamic water depth and intelligent adjustment of the flow meter position, thereby improving the accuracy and efficiency of flow velocity monitoring. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of one embodiment of the flow velocity monitoring fixture in Example 1; Figure 2 for Figure 1 A magnified view of part A in the image; Figure 3 for Figure 1 A magnified view of part B in the image; Figure 4 for Figure 1 A magnified view of the C in the image; In the diagram: 1. Measuring component; 2. Fixing component; 3. Insert rod; 4. Flow meter; 5. Support leg; 6. Limiting ring; 7. First telescopic tube; 8. Second telescopic tube; 9. Elastic component; 10. Telescopic component; 11. Locking component; 12. Limiting groove; 13. Motor; 14. Rotor; 15. Mounting component. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1 The purpose of this embodiment is to provide a fixed device and a flow velocity monitoring device to solve the problems existing in the prior art. The position of the flow velocity meter is adaptively adjusted according to the water flow depth to adapt to the dynamic changes in lake topography and water level, thereby improving monitoring efficiency.

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] like Figure 1-4 As shown, this embodiment provides a fixed device for flow velocity monitoring, including a measuring component 1, a fixing component 2, an insertion rod 3, and a control system. The end of the insertion rod 3 near the silt is fixedly connected to the fixing component 2, which is used to fix it in the silt. The measuring component 1 is provided on the fixing component 2, and an installation component 15 is slidably provided on the insertion rod 3. The installation component 15 is used to install a flow meter 4. The measuring component 1 is used to measure the depth of the silt surface from the water surface and transmits a position signal to the installation component 15 through the control system so that the installation component 15 drives the flow meter 4 to move according to the depth of the silt surface from the water surface, so that several flow meters 4 are uniformly placed in the water in the vertical direction to detect water at various depths.

[0022] The insertion rod 3 is placed in the water using the fixing component 2, the measuring component 1 is used to measure the water depth, the control system sets the number of installation parts 15 for the water depth, and the control system controls several flow meters 4 to move to multiple water depth measuring points according to the depth of the silt surface from the water surface. This enables multi-gradient accurate monitoring of dynamic water depth and intelligent adjustment of the position of the flow meters 4, thereby improving the accuracy and efficiency of flow velocity monitoring.

[0023] Specifically, the number and location of the installation components 15 can be selected as follows: For water depth < 1.5m: use the 0.5 or 0.6 times relative water depth single-point method; for water depth 1.5m ≤ water depth < 3.0m: use the 0.2 or 0.8 times relative water depth two-point method; for water depth 3.0m ≤ water depth < 5.0m: use the 0.2, 0.6, or 0.8 times relative water depth three-point method; for water depth ≥ 5.0m: use the 0, 0.2, 0.4, 0.6, 0.8, or 0 times relative water depth six-point method. In one specific embodiment, the insertion rod 3 can be a detachable sleeve. The number of sleeves is selected according to the depth of the local lake, adapting to various environments from shallow water to deep pools. In one embodiment, the length of the insertion rod 3 is greater than the depth of the silt surface from the water surface.

[0024] The insertion rod 3 is larger than the maximum depth of the lake, so that the insertion rod 3 can extend out of the lake and the current meter 4 is always inside the lake.

[0025] In one embodiment, the fixing component 2 includes several legs 5, which are rotatably connected to the side of the insertion rod 3 extending near the bottom of the water. A measuring component 1 is slidably connected to each leg 5, and the measuring component 1 can be positioned above the silt to obtain the water depth. The legs 5 are used to position and stabilize the entire device to prevent it from tipping over in the water.

[0026] In one embodiment, the measuring component 1 includes a pressure sensor positioned above the silt to obtain the depth of the silt surface from the water surface. The pressure sensor acquires the water pressure at the silt surface and then transmits the pressure to the control system, which can calculate the depth of the water surface from the silt surface based on the pressure.

[0027] Pressure sensors are used to measure the depth of silt surface from the water surface. They are simple in structure and low in cost.

[0028] In one embodiment, a limiting ring 6 is also included, on which a pressure sensor is fixedly connected. One of the legs 5 passes through the limiting ring 6 and enters the silt. The limiting ring 6 is located above the silt and in contact with the silt so that the pressure sensor can obtain the depth of the silt surface from the water surface.

[0029] When the outrigger 5 is inserted into the silt, the silt will cause the limiting ring 6 to move on the outrigger 5, always keeping it above the silt, thus ensuring the accurate measurement of water depth by the pressure sensor on the limiting ring 6.

[0030] In one embodiment, the outrigger 5 includes a first telescopic tube 7, a second telescopic tube 8, an elastic element 9, and a telescopic element 10. The upper end of the second telescopic tube 8 is fixed at the connection point of several outriggers 5. The elastic element 9 and the telescopic element 10 are both disposed inside the first telescopic tube 7. One end of the elastic element 9 is fixedly connected to the fixed end of the telescopic element 10, and the other end is connected to the bottom end of the first telescopic tube 7. The movable end of the telescopic element 10 is fixedly connected to the lower end of the second telescopic tube 8. The first telescopic tube 7 is slidably sleeved on the second telescopic tube 8. When external pressure causes the elastic element 9 to deform, it will trigger the telescopic element 10 to work, causing the telescopic element 10 to extend or shorten, thereby driving the first telescopic tube 7 to slide on the second telescopic tube 8, so as to drive the length of the outrigger 5 to extend or shorten.

[0031] The elastic element 9 acts as a sensing device for the telescopic element 10. When the elastic element 9 deforms under force, it triggers the telescopic element 10 to extend the support leg 5, ensuring the stability of the fixed component 2. This allows it to adapt to the lakebed silt and resist water level fluctuations and water flow impacts. When the device is subjected to the drag force of the water flow, the force on the first telescopic tube 7 increases, compressing the elastic element 9 and causing it to deform. This deformation triggers the output driving force of the telescopic element 10 to push the first telescopic tube 7 to slide on the second telescopic tube 8, thereby counteracting the drag force of the water flow and adapting the length of the support leg 5 to the lakebed sediment. After the drag force disappears, the elastic element 9 returns to its original shape, and the telescopic element 10 stops working, thus maintaining the overall stability of the device and ensuring that it is always perpendicular to the horizontal plane.

[0032] Three outriggers can be selected to form a triangular support. The triangular support configuration solves the problem of the support tilting and overturning, ensuring continuous monitoring and accurate data.

[0033] In one embodiment, the mounting member 15 has a locked state and a released state. In the locked state, the flow meter 4 and the insertion rod 3 on the mounting member 15 are locked in position. In the released state, the flow meter 4 and the insertion rod 3 on the mounting member 15 can slide to keep each flow meter 4 evenly distributed in the water.

[0034] By setting up independent mounting parts 15 to assemble individual flowmeters 4, each flowmeter 4 can be installed independently, making assembly convenient and disassembly and maintenance flexible. The mounting parts 15 slide onto the insertion rod 3 and have both locked and released states. When released, the installation position of each flowmeter 4 can be flexibly adjusted to adapt to the detection spacing requirements of different water areas. This allows for precise adjustment and ensures that each flowmeter 4 is evenly distributed in the water, avoiding uneven density of detection points and effectively improving the comprehensiveness and uniformity of multi-point flow velocity detection in the water area. After adjustment, it can be switched to the locked state, making the flowmeter 4 and the insertion rod 3 firmly fixed, preventing positional displacement caused by water flow impact, and ensuring the installation stability of the flowmeter 4 and the accuracy of the detection data during the detection process.

[0035] Furthermore, each mounting component 15 is equipped with a flow meter 4 pressure sensor. The control system transmits the calculated position information and the flow meter 4 pressure sensor in the form of a pressure signal to obtain the specific position of the mounting component 15.

[0036] In one embodiment, the mounting component 15 has a lifting mechanism and a locking mechanism, both of which are signal-connected to the control system. The locking mechanism has a locked state and a released state. The control system sends a signal to the locking mechanism to switch between the locked state and the released state. The control system also sends a signal to the lifting mechanism to move the mounting component 15 on the insert rod 3.

[0037] Both the lifting mechanism and the locking mechanism are connected to the control system to achieve electronic linkage, realizing automated control of the position adjustment and locking of the installation component 15 without manual operation, resulting in high adjustment efficiency and convenient operation. The control system can independently send control signals to drive the locking mechanism to switch between locked and released states, while simultaneously controlling the lifting mechanism to automatically move the installation component 15 along the insertion rod 3, ensuring precise and controllable position adjustment. Relying on the electronically automated adjustment method, the spacing and height of each current meter 4 can be precisely adjusted as needed, quickly completing the uniform deployment of multiple points, adapting to different hydrological detection conditions and water environments. The mechanical adjustment structure combined with the intelligent electronic control mode enhances the overall intelligence of the device, avoids errors from manual adjustment, ensures the consistency of the current meter 4's deployment position, and continuously guarantees stable and reliable hydrological detection data.

[0038] In one embodiment, the lifting mechanism includes a motor 13 and a rotor 14. The motor 13 is fixedly connected to the mounting member 15, and the output shaft of the motor 13 is driven to the rotor 14. The motor 13 drives the rotor 14 to rotate so as to move the mounting member 15 on the insert rod 3.

[0039] The structure employs a motor 13 to drive the rotor 14, converting the rotational power of the motor 13 into the driving force for the installation component 15 to move along the insertion rod 3. This design features a simple and compact layout with direct and efficient power transmission. The rotor 14, rotating synchronously with the motor 13, generates lateral thrust, enabling the installation component 15 to slide autonomously using fluid forces. This eliminates the need for complex transmission structures such as lead screws and gears, reducing equipment failure rates and manufacturing costs. By controlling the speed and direction of the motor 13, the thrust and direction of the rotor 14 can be flexibly adjusted, precisely controlling the movement speed, stroke, and start / stop of the installation component 15. Position adjustment is flexible and highly controllable. The purely mechanical power drive combined with the integrated assembly structure is suitable for complex underwater humid conditions, exhibits strong resistance to water flow interference, and can stably drive the current meter 4 to complete spacing adjustments, ensuring continuous and reliable operation of hydrological monitoring.

[0040] In one embodiment, the locking mechanism includes a locking member 11 and a plurality of limiting grooves 12, the plurality of limiting grooves 12 being formed on the mounting member 15, and the control system being able to control the positioning pin of the locking member 11 to enter into the limiting grooves 12 and move away from the limiting grooves 12.

[0041] The locking element 11 and the limiting groove 12 engage in a simple, compact, and low-wear structure, making it suitable for long-term underwater operation and ensuring high overall reliability. The control system precisely controls the insertion and disengagement of the positioning pin into and out of the limiting groove 12, quickly switching the locking mechanism between locked and released states, resulting in high automation and rapid response. The positioning pin and limiting groove 12 work together to limit movement, effectively restricting the relative sliding between the mounting part 15 and the insertion rod 3 after locking, resisting the impact of water flow and water disturbance, and preventing the current meter 4 from shifting position. The limiting groove 12 can correspond to multiple adjustment levels, facilitating precise distance positioning and ensuring uniform and stable spacing between the current meters 4 after adjustment, effectively improving the accuracy and consistency of hydrological data.

[0042] Working principle: First, the approximate water depth at the test location is roughly measured. Then, based on the water depth and the "Standard for Measurement of River Flow of the People's Republic of China," the number and location of the installation components 15 are set: Water depth < 1.5m: 0.5 or 0.6 times the relative water depth (one-point method); 1.5m ≤ water depth < 3.0m: 0.2 or 0.8 times the relative water depth (two-point method); 3.0m ≤ water depth < 5.0m: 0.2, 0.6, or 0.8 times the relative water depth (three-point method); Water depth ≥ 5.0m: 0, 0.2, 0.4, 0.6, 0.8, or 0 times the relative water depth (six-point method). The system first collects the water pressure signal through a pressure sensor, and then outputs adjustment commands after processing by the control system. It can not only accurately place the installation components 15 at the test point, but also automatically adjust the spatial position of the installation components 15 on the insertion rod 3 according to the dynamic changes in water level.

[0043] Example 2 This embodiment discloses a flow velocity monitoring device, including a flow velocity meter 4 and a fixed device for flow velocity monitoring as described in Embodiment 1.

[0044] In one embodiment, the mounting component 15 further includes a clamping mechanism for clamping the flow meter 4.

[0045] A dedicated clamping mechanism is used to hold and fix the current meter 4, ensuring stable assembly of the current meter 4 and the mounting component 15. This reliable installation and positioning prevents the instrument from loosening or falling off due to water flow erosion. The clamping structure adapts to the shape of the current meter 4 for a close fit, simplifying installation and disassembly, and facilitating future inspection, replacement, and maintenance. The clamping mechanism's containment and limiting effect reduces interference from water turbulence on the current meter 4's detection posture, ensuring stable instrument posture and improving flow velocity acquisition accuracy. The independent clamping structure enables modular installation of the current meter 4, with clear structural division of labor. The clamps do not interfere with the adjustment and locking actions of the lifting and locking mechanisms, resulting in better overall structural coordination.

[0046] In one specific embodiment, the clamping mechanism consists of two symmetrical steel concave semi-clamping assemblies and a rubber anti-slip sleeve. During operation, the screw-nut assembly is loosened, the flow meter 4 is inserted into the cavity formed by the two steel concave semi-clamping assemblies, and then the screw-nut assembly is tightened to secure the flow meter 4. One of the steel concave semi-clamping assemblies is connected to the mounting part 15.

[0047] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A flow rate monitoring fixture, characterized by: The device includes a measuring component, a fixing component, a rod, and a control system. One end of the rod near the silt is fixedly connected to the fixing component, which is used to fix the rod in the silt. The measuring component is mounted on the fixing component. A mounting component is slidably mounted on the rod, and the mounting component is used to mount a flow meter. The measuring component measures the depth of the silt surface from the water surface and transmits a position signal to the mounting component through the control system, causing the mounting component to move the flow meter according to the depth of the silt surface from the water surface. This allows several flow meters to be uniformly positioned vertically in the water to detect water at various depths.

2. The fixed device for flow velocity monitoring according to claim 1, characterized in that: The length of the insertion rod is greater than the depth of the silt surface from the water surface.

3. The fixed device for flow velocity monitoring according to claim 1, characterized in that: The fixing component includes several legs, which are rotatably connected to the side of the insertion rod that extends into the water near the bottom. The measuring component is slidably connected to the legs and can be positioned above the silt to obtain the depth of the silt surface from the water surface.

4. The fixed device for flow velocity monitoring according to claim 2, characterized in that: The measuring component includes a pressure sensor that can be positioned above the silt to obtain the depth of the silt surface from the water surface.

5. The fixed device for flow velocity monitoring according to claim 4, characterized in that: It also includes a limiting ring, on which the pressure sensor is fixedly connected. One of the legs passes through the limiting ring and enters the silt. The limiting ring is located above the silt and in contact with the silt so that the pressure sensor can obtain the depth of the silt surface from the water surface.

6. The fixed device for flow velocity monitoring according to claim 1, characterized in that: It also includes several mounting components, which have a locked state and a released state. In the locked state, the flow meter on the mounting component is locked in position with the insertion rod. In the released state, the flow meter on the mounting component and the insertion rod can slide to keep each flow meter evenly distributed in the water.

7. The fixed device for flow velocity monitoring according to claim 6, characterized in that: The mounting component has a lifting mechanism and a locking mechanism, both of which are signal-connected to the control system. The locking mechanism has a locked state and a released state. The control system sends a signal to the locking mechanism to switch between the locked state and the released state, and sends a signal to the lifting mechanism to move the mounting component on the insert rod.

8. The fixed device for flow velocity monitoring according to claim 7, characterized in that: The lifting mechanism includes a motor and a rotor. The motor is fixedly connected to the mounting component, and the output shaft of the motor is driven by the rotor. The motor drives the rotor to rotate so as to move the mounting component on the insert rod.

9. The fixed device for flow velocity monitoring according to claim 7, characterized in that: The locking mechanism includes a locking element and several limiting grooves. The limiting grooves are formed on the mounting element. The control system can control the positioning pin of the locking element to enter the limiting groove and move away from the limiting groove.

10. A flow velocity monitoring device, characterized in that: Includes a flow meter and a fixed device for flow monitoring as described in any one of claims 1-9.

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