River runoff measuring device

Abstract

The invention discloses a river runoff measuring device, which relates to the technical field of measuring equipment, and adopts the technical scheme that the river runoff measuring device comprises a river channel, a moving vehicle is arranged at the upper part of the river channel, a moving mechanism is arranged in the moving vehicle, the moving mechanism is fixedly connected with an eccentric shaft, the eccentric shaft is rotationally connected with a connecting rod, and the connecting rod is rotationally connected with a piston plate; the piston plate is slidably connected with the first air cavity, the first air cavity is fixedly connected to the upper portion of the moving vehicle, one side of the first air cavity is fixedly connected with a guide pipe, and the end, away from the first air cavity, of the guide pipe is fixedly connected with a second air cavity. An eccentric shaft rotates to drive a piston plate to reciprocate, so that gas is conveyed into a second gas cavity through a guide pipe, the gas pressure in the second gas cavity rises to drive a movable plate to move, a cushioning spring is pressed to contract, the elastic potential energy of the cushioning spring is improved, and the cushioning capacity of the cushioning spring in the device moving process is improved.

Description

Technical Field

[0001] This invention relates to the field of measuring equipment technology, and in particular to a river runoff measuring device. Background Technology

[0002] River runoff measurement devices are key equipment for accurately monitoring water resource dynamics. They efficiently acquire data through non-contact or indirect contact methods. These devices typically integrate advanced sensors such as acoustic Doppler current meters and radar level gauges. Utilizing the principle of sound wave or electromagnetic wave reflection, they measure water flow velocity and river water level in real time. Combined with river cross-sectional morphology data, they automatically calculate the runoff per unit time using built-in algorithms and support wireless transmission to a monitoring platform for remote data management and analysis. Their advantages lie in their strong adaptability, allowing deployment in rivers of varying widths and depths, and the measurement process does not affect the aquatic ecosystem. Some models are also equipped with solar power systems and corrosion-resistant casings to ensure long-term stable operation in field environments. These devices are widely used in hydrological research, flood warning, and water resource allocation, providing reliable data support for scientific water management.

[0003] In practical use, existing devices, especially mobile radar wave flow measurement equipment, are constantly affected by ambient winds during movement. Strong winds may cause the radar wave emission direction to deviate, leading to fluctuations in flow velocity measurement data. On the other hand, mechanical vibrations can interfere with the stability of the radar antenna, causing phase misalignment of water level and flow velocity signals, resulting in increased errors in cross-sectional area calculation. Therefore, a river runoff measurement device is proposed. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the continuous influence of ambient wind on mobile radar wave flow measurement devices during movement. Strong winds may cause the radar wave emission direction to deviate, leading to fluctuations in flow velocity measurement data. On the other hand, mechanical vibrations may interfere with the stability of the radar antenna, causing phase misalignment of water level and flow velocity signals, resulting in increased errors in cross-sectional area calculation. Therefore, this invention proposes a river runoff measurement device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A river runoff measurement device includes a mobile vehicle with a moving mechanism inside. An eccentric shaft is fixedly connected to the moving mechanism, and a connecting rod is rotatably connected to the eccentric shaft. A piston plate is rotatably connected to the connecting rod, and the piston plate is slidably connected to a first air chamber. The first air chamber is fixedly connected to the upper part of the mobile vehicle. A conduit is fixedly connected to one side of the first air chamber, and a second air chamber is fixedly connected to the end of the conduit away from the first air chamber. A moving rod is slidably connected inside the second air chamber, and a moving plate is fixedly connected to the moving rod. A damping spring is fixedly connected to the moving plate, and a buffer plate is fixedly connected to the end of the damping spring away from the moving plate. A limiting groove is fixedly connected to the lower part of the mobile vehicle, and the limiting groove is slidably connected to a limiting rod. An adjustment mechanism is fixedly connected to the bottom of the mobile vehicle, and a measuring device is installed below the adjustment mechanism. The limiting rod and the moving plate are tightly fitted together.

[0006] During the movement of the mobile vehicle, the moving mechanism drives the fixedly connected eccentric shaft to rotate synchronously. The rotation of the eccentric shaft causes the piston plate to reciprocate inside the first air chamber, thereby delivering gas to the second air chamber through the conduit. The increased air pressure inside the second air chamber causes the moving plate to move, thereby compressing the damping spring and increasing its elastic potential energy. This automatically improves the buffering performance of the buffer plate during movement, avoiding the impact of mechanical vibration and ambient wind on the overall stability of the device. The upper part of the first air chamber is provided with an air inlet groove and an air outlet, with the area of ​​the air inlet groove being larger than that of the air outlet. The measuring device is equipped with a radar flow velocity module and a radar water level module, realizing an integrated radar flow monitoring mechanism. Through time-division multiplexing of the radar antenna, dual-parameter measurement of a single device is achieved.

[0007] The above technical solution further includes: A column is fixedly connected to the upper part of the river channel, and a movable steel cable and a limiting rod are installed on the upper part of the column.

[0008] One end of the movable steel cable is equipped with a winch, which is fixedly connected to the top of the column.

[0009] The moving mechanism includes a second motor installed inside the moving vehicle. The output end of the second motor is provided with a wheel, which is rotatably connected to the moving vehicle. The second motor is a double-headed motor, and there is a river channel at the bottom of the moving vehicle.

[0010] The lower part of the wheel is connected to a movable steel cable, and the wheel is fixedly connected to an eccentric shaft.

[0011] The adjustment mechanism includes an adjustment frame fixedly connected to the bottom of the mobile vehicle, which drives the mounting plate at the bottom to rotate.

[0012] The mobile vehicle is equipped with a first motor on its upper part, and an adjustment component is provided at the output end of the first motor.

[0013] The adjustment assembly includes a first gear located at the output end of a first motor, a second gear meshing with the first gear, a rotating shaft fixedly connected to the second gear, and a rotating shaft rotatably connected to the adjustment frame.

[0014] The rotating shaft is fixedly connected to a mounting plate, and a measuring device is provided at the lower part of the mounting plate.

[0015] The present invention has the following beneficial effects: 1. In this invention, during the measurement process, the buffer plate and damping spring set on one side of the limit rod can reduce the overall impact of vibration on the moving vehicle under the influence of ambient wind, thereby ensuring the stability of the measurement process. When it is necessary to adjust the detection position, the moving mechanism is activated to move the device. The moving mechanism can synchronously drive the eccentric shaft to rotate. The rotation of the eccentric shaft drives the piston plate to reciprocate, thereby delivering gas into the second air chamber through the conduit. The air pressure inside the second air chamber increases, driving the moving plate to move, thereby compressing the damping spring to contract and increase its elastic potential energy, thereby improving the damping capacity of the damping spring during the movement of the device, effectively eliminating the vibration generated by ambient wind and movement, and ensuring the detection stability of the measuring equipment.

[0016] 2. In this invention, the tension of the moving steel cable can be adjusted by a winch device set at one end of the moving steel cable to ensure moving stability. By activating the adjustment mechanism, the mounting plate can be rotated, thereby automatically adjusting the emission angle of the measuring device to ensure that the radar wave is always perpendicular to the water flow surface. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a river runoff measurement device proposed in this invention; Figure 2 This is a schematic diagram of the connection relationship of the mobile vehicles in this invention; Figure 3 This is a schematic diagram of the connection relationship of the mounting plate in this invention; Figure 4 This is a schematic diagram of the internal structure of the mobile vehicle in this invention; Figure 5 This is a schematic diagram of the internal structure of the air cavity in this invention; Figure 6 This is a schematic diagram of the internal structure of the air cavity II in this invention.

[0018] In the diagram: 1. River channel; 2. Column; 3. Moving steel cable; 4. Limiting rod; 5. Measuring equipment; 6. Winch; 7. Moving vehicle; 8. Air chamber one; 9. Conduit; 10. Mounting plate; 11. Adjusting frame; 12. Limiting slide; 13. First motor; 14. First gear; 15. Second gear; 16. Rotating shaft; 17. Second motor; 18. Wheel; 19. Air chamber two; 20. Eccentric shaft; 21. Connecting rod; 22. Piston plate; 23. Moving rod; 24. Moving plate; 25. Shock-absorbing spring; 26. Buffer plate. Detailed Implementation

[0019] 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.

[0020] Example 1 like Figures 1-6 As shown, a river runoff measurement device includes a mobile vehicle 7, which has a moving mechanism inside. The moving mechanism is fixedly connected to an eccentric shaft 20, which is rotatably connected to a connecting rod 21. The connecting rod 21 is rotatably connected to a piston plate 22, which is slidably connected to an air chamber 8. The air chamber 8 is fixedly connected to the upper part of the mobile vehicle 7. A conduit 9 is fixedly connected to one side of the air chamber 8. An air chamber 19 is fixedly connected to the end of the conduit 9 away from the air chamber 8. A moving rod 23 is slidably connected inside the air chamber 19. A moving plate 24 is fixedly connected to the moving rod 23. A damping spring 25 is fixedly connected to the moving plate 24. A buffer plate 26 is fixedly connected to the end of the damping spring 25 away from the moving plate 24. A limiting groove 12 is fixedly connected to the lower part of the mobile vehicle 7. The limiting groove 12 is slidably connected to a limiting rod 4. An adjustment mechanism is fixedly connected to the bottom of the mobile vehicle 7. A measuring device 5 is provided below the adjustment mechanism. The limiting rod and the moving plate are tightly fitted together.

[0021] During the movement of the mobile vehicle 7, the moving mechanism drives the fixedly connected eccentric shaft 20 to rotate synchronously. The rotation of the eccentric shaft 20 drives the piston plate 22 to reciprocate inside the first air chamber 8, thereby delivering gas to the second air chamber 19 through the conduit 9. The increased air pressure inside the second air chamber 19 drives the moving plate 24 to move, thereby compressing the damping spring 25 and increasing its elastic potential energy. This achieves automatic improvement of the buffer performance of the buffer plate 26 during the movement, avoiding the impact of mechanical vibration and ambient wind on the overall stability of the device. The upper part of the first air chamber 8 is provided with an air inlet groove and an air outlet, with the area of ​​the air inlet groove being larger than that of the air outlet. The measuring device 5 is equipped with a radar flow velocity module and a radar water level module, realizing an integrated radar flow monitoring mechanism. Through time-division multiplexing of the radar antenna, dual-parameter measurement of a single device is achieved.

[0022] The moving mechanism includes a second motor 17 installed inside the moving vehicle 7. The output end of the second motor 17 is provided with a wheel 18, which is rotatably connected to the moving vehicle 7. The second motor 17 is a double-headed motor. The lower part of the wheel 18 is connected to a moving steel cable 3, which spans the river channel 1. The wheel 18 is fixedly connected to an eccentric shaft 20.

[0023] In this embodiment, during the measurement process, the buffer plate 26 and the damping spring 25 set on one side of the limit rod 4 can reduce the overall impact of vibration on the moving vehicle 7 under the influence of ambient wind, thereby ensuring the stability of the measurement process of the measuring device 5. When it is necessary to adjust the detection position, the second motor 17 can be started to drive the wheel 18 to rotate. The rotation of the wheel 18 can move along the moving steel cable 3, and the bottom fixedly connected limit slide groove 12 can slide synchronously along the limit rod 4 to ensure the stability of the moving vehicle 7 when it moves.

[0024] During the movement of the device, the wheel 18 can synchronously drive the fixedly connected eccentric shaft 20 to rotate. The rotation of the eccentric shaft 20 drives the rotating connected connecting rod 21 to rotate. The rotation of the connecting rod 21 drives the rotating connected piston plate 22 to reciprocate, thereby delivering gas into the second air chamber 19 through the conduit 9. The increased air pressure inside the second air chamber 19 can drive the moving rod 23 to move. The movement of the moving rod 23 drives the moving plate 24 to move, thereby compressing the damping spring 25 to contract and increase its elastic potential energy. This improves the damping capacity of the damping spring 25 during the movement of the device, effectively eliminating the vibration generated by the ambient wind and movement, and ensuring the detection stability of the measuring equipment 5.

[0025] Example 2 like Figures 1-6As shown, a column 2 is fixedly connected to the upper part of the river channel 1. A movable steel cable 3 and a limiting rod 4 are installed on the upper part of the column 2. A winch device 6 is installed at one end of the movable steel cable 3. The winch device 6 is fixedly connected to the top of the column 2. The adjustment mechanism includes an adjustment frame 11 fixedly connected to the bottom of the mobile vehicle 7. The adjustment mechanism drives the mounting plate 10 installed at the bottom to rotate. A first motor 13 is installed on the upper part of the mobile vehicle 7. An adjustment component is installed at the output end of the first motor 13. The adjustment component includes a first gear 14 installed at the output end of the first motor 13. The first gear 14 is meshed with a second gear 15. The second gear 15 is fixedly connected to a rotating shaft 16. The rotating shaft 16 is rotatably connected to the adjustment frame 11. The rotating shaft 16 is fixedly connected to the mounting plate 10. A measuring device 5 is installed at the lower part of the mounting plate 10.

[0026] In this embodiment, the tension of the moving steel cable 3 can be adjusted by the winch device 6 set at one end of the moving steel cable 3 to ensure the stability of movement. By starting the first motor 13, the first gear 14 can be driven to rotate. The rotation of the first gear 14 drives the meshing second gear 15 to rotate. The rotation of the second gear 15 drives the fixedly connected rotating shaft 16 to rotate. The rotation of the rotating shaft 16 drives the fixedly connected mounting plate 10 to rotate, thereby automatically adjusting the emission angle of the measuring device 5 to ensure that the radar wave is always perpendicular to the water flow surface. Dynamically adjusting the angle can reduce the influence of changes in water flow direction on Doppler frequency shift measurement and improve the accuracy of flow velocity data.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A river runoff measurement device, comprising a mobile vehicle (7), characterized in that, The mobile vehicle (7) is equipped with a moving mechanism, which is fixedly connected to an eccentric shaft (20). The eccentric shaft (20) is rotatably connected to a connecting rod (21), and the connecting rod (21) is rotatably connected to a piston plate (22). The piston plate (22) is slidably connected to air chamber one (8). Air chamber one (8) is fixedly connected to the upper part of the mobile vehicle (7). A conduit (9) is fixedly connected to one side of air chamber one (8). Air chamber two (19) is fixedly connected to the end of the conduit (9) away from air chamber one (8). Air chamber two (19) is slidably connected inside air chamber two (19). A movable rod (23) is fixedly connected to a movable plate (24), and a shock-absorbing spring (25) is fixedly connected to the movable plate (24). A buffer plate (26) is fixedly connected to the end of the shock-absorbing spring (25) away from the movable plate (24). A limit groove (12) is fixedly connected to the lower part of the movable vehicle (7). The limit groove (12) is slidably connected to the limit rod (4). An adjustment mechanism is fixedly connected to the bottom of the movable vehicle (7). A measuring device (5) is provided at the lower part of the adjustment mechanism. The limit rod (4) and the movable plate (24) are tightly fitted together. During the movement of the mobile vehicle (7), the moving mechanism drives the fixedly connected eccentric shaft (20) to rotate synchronously. The rotation of the eccentric shaft (20) drives the piston plate (22) to move back and forth inside the first air chamber (8), thereby delivering gas to the second air chamber (19) through the conduit (9). The air pressure inside the second air chamber (19) increases, causing the moving plate (24) to move, thereby compressing the damping spring (25) and increasing its elastic potential energy. This achieves automatic improvement of the buffer performance of the buffer plate (26) during the movement, avoiding mechanical vibration and environmental wind affecting the overall stability of the device during the movement.

2. The river runoff measurement device according to claim 1, characterized in that, The upper part of the river channel (1) is fixedly connected to a column (2), and the upper part of the column (2) is provided with a movable steel cable (3) and a limiting rod (4).

3. A river runoff measurement device according to claim 2, characterized in that, One end of the movable steel cable (3) is equipped with a winch device (6), which is fixedly connected to the top of the column (2).

4. A river runoff measuring device according to claim 1, characterized in that, The moving mechanism includes a second motor (17) installed inside the moving vehicle (7), and a wheel (18) is provided at the output end of the second motor (17). The wheel (18) is rotatably connected to the moving vehicle (7), and there is a river channel (1) at the bottom of the moving vehicle (7).

5. A river runoff measuring device according to claim 4, characterized in that, The lower part of the wheel (18) is connected to a moving steel cable (3), and the wheel (18) is fixedly connected to an eccentric shaft (20).

6. A river runoff measuring device according to claim 1, characterized in that, The adjustment mechanism includes an adjustment frame (11) fixedly connected to the bottom of the mobile vehicle (7), which drives the mounting plate (10) at the bottom to rotate.

7. A river runoff measuring device according to claim 6, characterized in that, The mobile vehicle (7) is equipped with a first motor (13) on its upper part, and an adjustment component is provided at the output end of the first motor (13).

8. A river runoff measuring device according to claim 7, characterized in that, The adjustment assembly includes a first gear (14) provided at the output end of a first motor (13), a second gear (15) meshing with the first gear (14), a rotating shaft (16) fixedly connected to the second gear (15), and the rotating shaft (16) being rotatably connected to the adjustment frame (11).

9. A river runoff measuring device according to claim 8, characterized in that, The rotating shaft (16) is fixedly connected to the mounting plate (10), and a measuring device (5) is provided at the lower part of the mounting plate (10).

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