River and lake water flow velocity detection device

Abstract

The utility model relates to detection device technical field, a river lake water flow velocity detection device, including the floating platform, the fixed setting of fixed sleeve is arranged below the floating platform, the movable sleeve is movably arranged in fixed sleeve inside, the connecting shaft is rotatably arranged on the floating platform top, and the detection device is arranged on the connecting shaft top, the adjusting assembly for adjusting movable sleeve position is arranged in movable sleeve inside, the rotating sleeve is rotatably arranged in movable sleeve lower extreme, and the measuring cylinder is fixedly arranged in rotating sleeve inside, the transmission case is arranged in measuring cylinder inside through the fixed link, the transmission assembly is arranged on transmission case top, and transmission assembly is connected with detection device. The utility model through adjusting assembly can adjust movable sleeve position flexibly, and then change the measuring position to adapt to different water area environment, and the cooperation of rotating sleeve, measuring cylinder, transmission case and transmission assembly can convert the movement of water flow into detectable signal, and then detection device obtains water flow velocity data.

Description

Technical Field

[0001] This utility model relates to the field of detection device technology, and in particular to a device for detecting the flow rate and velocity of rivers and lakes. Background Technology

[0002] Hydrological and water conservancy monitoring and alarm systems are mainly used to monitor the water conservancy operation of rivers, lakes, and reservoirs, and to promptly reflect the hydrological characteristics of each body of water. These systems transmit digital information such as temperature, humidity, wind speed, wind direction, rainfall, water quality, and water flow velocity detected by various detectors to an online monitoring center.

[0003] For example, the device for detecting water flow velocity and direction disclosed in Chinese Patent No. CN202321817321.1, works as follows: It includes a top plate, with connecting plates fixedly installed on both sides of the top plate near its bottom outer surface; two sliding grooves, each formed on the opposite side of the two connecting plates, with a sliding rod fixedly embedded inside each groove; and two floating blocks, each movably sleeved on the outer surface of the two sliding rods. The device is installed into the channel where the water flow velocity and direction need to be detected via two adjusting screws, which are threaded together. The height of the device can be adjusted more accurately according to the water level in the channel by the threaded grooves in the rectangular plate. This allows for more accurate detection of water flow velocity and direction. After the device is installed in the channel, two floating blocks float on the surface of the water with the connecting rod under the action of the water, while the two guide plates installed at the center of the connecting rod are immersed in the water. The floating blocks can only float on the surface of the water flow, and the surface flow velocity is detected through the guide plates. It is impossible to adjust the measurement position according to different water depths, and it cannot reflect the stratification characteristics of the flow velocity in the vertical direction of the river, resulting in incomplete and inaccurate overall flow velocity detection results. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution: a river and lake water flow and velocity detection device, comprising a floating platform, a fixed sleeve fixedly disposed below the floating platform, a movable sleeve movably disposed inside the fixed sleeve, a connecting shaft rotatably disposed above the floating platform, and a detection device disposed above the connecting shaft; an adjustment component for adjusting the position of the movable sleeve is disposed inside the movable sleeve; a rotating sleeve rotatably disposed at the lower end of the movable sleeve, a measuring cylinder fixedly disposed inside the rotating sleeve, a transmission box disposed inside the measuring cylinder via a fixed rod, a transmission component disposed above the transmission box, and the transmission component being connected to the detection device.

[0005] As an improvement to the above technical solution, the transmission assembly includes a rotating sleeve, a measuring cylinder, and a transmission box. A first transmission shaft is movably arranged inside the moving sleeve. The first transmission shaft is fixedly connected to the output end above the transmission box. A second transmission shaft is rotatably arranged inside the first transmission shaft. The second transmission shaft is rotatably connected to the floating platform. The second transmission shaft is connected to the detection device through the transmission shaft. Several axial grooves are opened inside the first transmission shaft. Several limiting plates arranged inside the axial grooves are fixedly arranged on the periphery of the second transmission shaft.

[0006] As an improvement to the above technical solution, the adjustment component includes a lead screw, gear one, and gear two. The movable sleeve has several threaded grooves inside, which pass through the floating platform and the fixed sleeve. A lead screw is threaded inside the threaded grooves, and gear one is fixedly connected to the upper end of the lead screw. A rotating groove is provided on the upper surface of the floating platform, and gear two is rotatably arranged inside the rotating groove. Gear two meshes with gear one, and gear two is fixedly connected to the connecting shaft.

[0007] As an improvement to the above technical solution, a triangular guide block is detachably provided on the periphery of the rotating sleeve.

[0008] As an improvement to the above technical solution, a gap is left between the second transmission shaft and the first transmission shaft.

[0009] The beneficial effects of this utility model are as follows: This device floats on the water surface via a floating platform, enabling it to adapt to different water levels and ensuring the stability of the detection. The adjustment component can flexibly adjust the position of the moving sleeve, thereby changing the measurement position to adapt to different aquatic environments. The cooperation of the rotating sleeve, measuring cylinder, transmission box, and transmission component can convert the movement of water flow into a detectable signal. Then, the detection device acquires water flow rate and velocity data, which can accurately detect the water flow rate and velocity of rivers and lakes. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural cross-sectional view of the present invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0011] Reference numerals: 10. Floating platform; 11. Fixed sleeve; 12. Moving sleeve; 13. Connecting shaft; 14. Detection device; 20. Rotating sleeve; 21. Measuring cylinder; 22. Transmission box; 23. Transmission shaft one; 24. Transmission shaft two; 25. Axial groove; 26. Limiting plate; 27. Triangular guide block; 30. Threaded groove; 31. Lead screw; 32. Gear one; 33. Rotating groove; 34. Gear two. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of this utility model clearer, the following provides a more detailed description of the utility model. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.

[0013] Please see Figure 1-4 This utility model provides a technical solution: a river and lake water flow rate and velocity detection device, including a floating platform 10, a fixed sleeve 11 fixedly installed below the floating platform 10, a movable sleeve 12 movably installed inside the fixed sleeve 11, a connecting shaft 13 rotatably installed above the floating platform 10, and a detection device 14 installed above the connecting shaft 13; an adjustment component for adjusting the position of the movable sleeve 12 is installed inside the movable sleeve 12; a rotating sleeve 20 is rotatably installed at the lower end of the movable sleeve 12, a measuring cylinder 21 is fixedly installed inside the rotating sleeve 20, a transmission box 22 is installed inside the measuring cylinder 21 through a fixed rod, a transmission component is installed above the transmission box 22, and the transmission component is connected to the detection device 14.

[0014] In this embodiment, the device floats on the water surface via a floating platform 10, enabling it to adapt to different water levels and ensure the stability of the detection. The adjustment component can flexibly adjust the position of the moving sleeve 12, thereby changing the measurement position to adapt to different aquatic environments. The rotating sleeve 20, measuring cylinder 21, transmission box 22, and transmission component work together. The output end of the transmission box 22 is connected to a turbine, which can convert the movement of water flow into a detectable signal. Then, the detection device 14 acquires water flow rate and velocity data, which can accurately detect the water flow rate and velocity of rivers and lakes.

[0015] Specifically, the transmission assembly includes a rotating sleeve 20, a measuring cylinder 21, and a transmission box 22. A first transmission shaft 23 is movably arranged inside the movable sleeve 12. The first transmission shaft 23 is fixedly connected to the output end above the transmission box 22. A second transmission shaft 24 is rotatably arranged inside the first transmission shaft 23. The second transmission shaft 24 is rotatably connected to the floating platform 10. The second transmission shaft 24 is connected to the detection device 14 through the transmission shaft. Several axial grooves 25 are opened inside the first transmission shaft 23. Several limiting plates 26 are fixedly arranged inside the axial grooves 25 on the periphery of the second transmission shaft 24.

[0016] In this embodiment, when the water flow drives the rotating sleeve 20 to rotate, the power is transmitted to the first transmission shaft 23 through the measuring cylinder 21 and the transmission box 22, causing it to rotate. The axial groove 25 inside the first transmission shaft 23 cooperates with the limiting plate 26 on the periphery of the second transmission shaft 24. While ensuring that the second transmission shaft 24 can rotate relative to the first transmission shaft 23, it can also transmit part of the motion of the first transmission shaft 23 to the second transmission shaft 24. The signal is then transmitted to the detection device 14 through the transmission shaft, which transmits the water flow rate to the detection device 14 responsible for the detection signal. This visualizes the water flow rate, making it easy for staff to read. Moreover, the transmission is carried out through a simple mechanical structure, which ensures stable operation and improves the accuracy and reliability of the detection.

[0017] Specifically, the adjustment assembly includes a lead screw 31, a first gear 32, and a second gear 34. The movable sleeve 12 has several threaded grooves 30 inside, which pass through the floating platform 10 and the fixed sleeve 11. The lead screw 31 is threaded inside the threaded grooves 30, and the first gear 32 is fixedly connected to the upper end of the lead screw 31. The floating platform 10 has a rotating groove 33 on its upper surface, and the second gear 34 is rotatably arranged inside the rotating groove 33. The second gear 34 meshes with the first gear 32, and the second gear 34 is fixedly connected to the connecting shaft 13.

[0018] In this embodiment, the rotating connecting shaft 13 drives the second gear 34 to rotate. The second gear 34 meshes with the first gear 32, which in turn drives the lead screw 31 to rotate. The lead screw 31 cooperates with the threaded groove 30 to convert the rotational motion into linear motion, thereby realizing the up and down movement of the movable sleeve 12 within the fixed sleeve 11. This adjustment method is simple to operate and can flexibly adjust the measurement position according to the water depth and flow conditions of different water areas, enabling the detection device 14 to obtain more accurate water flow rate data, thus enhancing the adaptability and practicality of the device.

[0019] Specifically, a triangular guide block 27 is detachably provided on the periphery of the rotating sleeve 20.

[0020] In this embodiment, the triangular guide block 27 can guide the rotation direction of the rotating sleeve 20 in the water flow, making it follow the water flow more stably and reducing the shaking and deviation caused by the irregular impact of the water flow. This improves the accuracy of the measuring cylinder 21 in sensing the water flow. At the same time, the detachable design of the triangular guide block 27 makes it easy to replace or adjust according to different water flow environments and detection needs, increasing the flexibility and maintainability of the device.

[0021] Specifically, there is a gap between drive shaft 24 and drive shaft 23.

[0022] In this embodiment, by leaving a gap between the second transmission shaft 24 and the first transmission shaft 23, excessive heat and energy loss due to friction during their relative rotation can be avoided, reducing wear and extending the service life of the transmission shaft. At the same time, the gap also ensures the flexibility of the second transmission shaft 24's rotation, making the transmission process smoother, reducing the impact of problems such as jamming on the transmission of detection signals, and improving the stability and reliability of the detection device 14.

[0023] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A device for detecting the flow rate and velocity of water in rivers and lakes, comprising a floating platform (10), characterized in that: A fixed sleeve (11) is fixedly installed below the floating platform (10), and a movable sleeve (12) is movably installed inside the fixed sleeve (11). A connecting shaft (13) is rotatably installed above the floating platform (10), and a detection device (14) is installed above the connecting shaft (13). The movable sleeve (12) is provided with an adjustment component for adjusting the position of the movable sleeve (12); The lower end of the movable sleeve (12) is rotatably provided with a rotating sleeve (20), and a measuring cylinder (21) is fixedly provided inside the rotating sleeve (20). A transmission box (22) is provided inside the measuring cylinder (21) through a fixed rod. A transmission assembly is provided above the transmission box (22), and the transmission assembly is connected to the detection device (14). The transmission assembly includes a rotating sleeve (20), a measuring cylinder (21), and a transmission box (22). A first transmission shaft (23) is movably arranged inside the movable sleeve (12). The first transmission shaft (23) is fixedly connected to the output end above the transmission box (22). A second transmission shaft (24) is rotatably arranged inside the first transmission shaft (23). The second transmission shaft (24) is rotatably connected to the floating platform (10). The second transmission shaft (24) is connected to the detection device (14) through the transmission shaft. Several axial grooves (25) are opened inside the first transmission shaft (23). Several limiting plates (26) are fixedly arranged inside the axial grooves (25) on the periphery of the second transmission shaft (24). The adjustment assembly includes a lead screw (31), a first gear (32), and a second gear (34). The movable sleeve (12) has several threaded grooves (30) inside. The threaded grooves (30) pass through the floating platform (10) and the fixed sleeve (11). The lead screw (31) is threaded inside the threaded grooves (30). The first gear (32) is fixedly connected to the upper end of the lead screw (31). The floating platform (10) has a rotating groove (33) on its upper surface. The second gear (34) is rotatably arranged inside the rotating groove (33). The second gear (34) meshes with the first gear (32). The second gear (34) is fixedly connected to the connecting shaft (13).

2. The river and lake water flow velocity detection device according to claim 1, characterized in that: A triangular guide block (27) is detachably provided on the periphery of the rotating sleeve (20).

3. The river and lake water flow and velocity detection device according to claim 1, characterized in that: There is a gap between the second drive shaft (24) and the first drive shaft (23).

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