Novel flow velocity detector for water conservancy measurement

Abstract

The utility model relates to the technical field of flow velocity detection for water conservancy measurement, in particular to a novel flow velocity detector for water conservancy measurement, which comprises a main shaft and a bearing seat, the inner wall of the bearing seat is rotatably connected with the main shaft through a plurality of bearings, the other side of the outer wall of the bearing seat is fixedly connected with a handle, and a position measuring assembly is mounted at the tail end of the upper part of the main shaft. A speed measuring assembly is installed at the tail end of the lower portion of the main shaft. Through the cooperation of the flow direction indicator, the pointer, the position sensor, the direction frame, the handheld instrument and the rotating speed sensor, the position sensor of the pointer can sense the direction frame on the four sides of the direction frame in real time, and after measurement, the data of the corresponding rotating speed sensor can be read by selecting the truncation with the most stable flow direction according to the data. Therefore, the problems that the measurement of the rotating speed from the liquid level to the lower part is inaccurate due to the change of different water flow directions, and the accuracy of the final flow velocity measurement is influenced due to the fact that the change of the water flow direction cannot be accurately known when the liquid level reaches the upper part are effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of flow velocity detection technology for water conservancy surveying, specifically a new type of flow velocity detector for water conservancy surveying. Background Technology

[0002] Modernization of water conservancy project management is an important component of water conservancy modernization and an objective requirement for adapting to economic and social modernization. In order to monitor water conservancy projects more effectively, it is necessary to check the water flow velocity of the project regularly, which requires the use of specialized flow velocity detectors. For example, a new type of flow velocity detector for water conservancy measurement with application number "202120841036.8" includes a measuring instrument body, a wire, an equipment box, and a telescopic rod. The upper surface of the measuring instrument body is fixedly connected to one end of the wire.

[0003] However, although it can solve the problem of the large space occupied by the measuring instrument, the traditional measuring structure only briefly inserts itself to measure the specific rotational speed and then calculates the flow velocity of the corresponding water conservancy (such as a river). However, since the real-time water flow direction of rivers and other water surfaces is uncertain, different changes in the water flow direction will lead to inaccurate measurement of the rotational speed from the bottom of the liquid surface, and it is also impossible to accurately know the specific change in the water flow direction from the top of the liquid surface, which affects the accuracy of the final flow velocity measurement. Utility Model Content

[0004] The purpose of this invention is to solve the problem that different changes in the direction of water flow in the device can lead to inaccurate measurement of the rotational speed from the bottom of the liquid surface to the top, and also make it impossible to accurately understand the specific changes in the direction of water flow from the top of the liquid surface, thus affecting the accuracy of the final flow velocity measurement. Therefore, a new type of flow velocity detector for hydraulic measurement is proposed.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A novel flow velocity detector for hydraulic measurement is designed, comprising a main shaft and a bearing housing. The inner wall of the bearing housing is rotatably connected to the main shaft through multiple bearings. A support plate is fixed to one side of the outer wall of the bearing housing, and a handle is fixed to the other side of the outer wall of the bearing housing. A positioning component is installed at the upper end of the main shaft, and a velocity measuring component is installed at the lower end of the main shaft.

[0007] Preferably, the speed measuring component includes a flow indicator and a bottom bracket. The bottom bracket is fixedly connected to the lower end of the main shaft. A speed sensor is fixedly connected to the inner wall of the bottom bracket. The outer wall of the detection shaft of the speed sensor is rotatably connected to the bottom bracket through a bearing. A flow meter is fixedly connected to the end of the output shaft of the speed sensor. The flow indicator is fixedly connected to the lower outer wall of the main shaft.

[0008] Preferably, a handheld instrument is fixed to the upper end of the tray.

[0009] Preferably, the positioning component includes a top bracket and a pointer. The upper end of the outer wall of the top bracket is rotatably connected to the main shaft. A direction frame is fixedly connected to the upper end of the top bracket. Magnetic needles are fixedly connected to the left and right outer walls of the direction frame. Position sensors are installed on the four outer walls of the direction frame and the upper outer wall of the pointer. The lower end of the pointer is fixedly connected to the main shaft.

[0010] Preferably, the four ends of the steering frame are all machined with corresponding direction indicators.

[0011] Preferably, the arrow direction of the pointer is consistent with the arrow direction of the flow indicator.

[0012] The novel flow velocity detector for hydraulic measurement proposed in this utility model has the following advantages:

[0013] By coordinating the flow indicator, pointer, position sensor, directional frame, handheld instrument, and speed sensor, the flow indicator constantly detects changes in water flow direction and automatically adjusts in real time. The main shaft drives the pointer to rotate accordingly. By observing the pointer's position changes, the flow direction changes are understood in real time. The position sensor on the pointer and directional frame allows for real-time sensing with the four sides of the directional frame, displaying the specific angle on the handheld instrument and recording the real-time data. After measurement, the data at the corresponding speed sensor is selected based on the most stable flow direction. This effectively avoids the problem that different water flow direction changes can lead to inaccurate speed measurement from the liquid surface downwards, and also avoids the inability to accurately understand the specific change in water flow direction from the liquid surface upwards, thus affecting the accuracy of the final flow velocity measurement. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the front appearance structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the rear appearance structure of this utility model;

[0016] Figure 3 This utility model Figure 2 A diagram of the structure viewed from below;

[0017] Figure 4 This is a schematic diagram of the right-side structure of this utility model;

[0018] Figure 5 This utility model Figure 3 Schematic diagram of the structure at point A in the diagram;

[0019] Figure 6 This utility model Figure 3 The structural diagram at point B in the diagram.

[0020] In the diagram: 1. Main shaft, 2. Bearing housing, 3. Speed ​​measuring assembly, 301. Bearing, 302. Speed ​​sensor, 303. Flow meter, 304. Flow indicator, 305. Bottom bracket, 4. Position measuring assembly, 401. Position sensor, 402. Pointer, 403. Magnetic needle, 404. Steering frame, 405. Top bracket, 5. Handle, 6. Support plate, 7. Handheld instrument. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] See attached document Figure 1-6 In this embodiment, a novel flow velocity detector for hydraulic measurement includes a main shaft 1 and a bearing seat 2. The inner wall of the bearing seat 2 is rotatably connected to the main shaft 1 through multiple bearings, allowing the main shaft 1 to rotate within the inner wall of the bearing seat 2. A support plate 6 is fixedly attached to one side of the outer wall of the bearing seat 2, and a handle 5 is fixedly attached to the other side of the outer wall of the bearing seat 2. A positioning component 4 is installed at the upper end of the main shaft 1, and a velocity measuring component 3 is installed at the lower end of the main shaft 1. A handheld instrument 7 is fixedly attached to the upper end of the support plate 6. The model of the handheld instrument 7 can be determined according to specific requirements, and it is required to display specific data and record it in real time.

[0023] See attached document Figure 1-6 In this embodiment, the speed measuring component 3 includes a flow indicator 304 and a bottom bracket 305. The bottom bracket 305 is fixedly connected to the lower end of the main shaft 1. A speed sensor 302 is fixedly connected to the inner wall of the bottom bracket 305. The model of the speed sensor 302 can be determined according to specific usage requirements. The outer wall of the detection shaft of the speed sensor 302 is rotatably connected to the bottom bracket 305 through a bearing 301. A flow velocity meter 303 is fixedly connected to the end of the output shaft of the speed sensor 302. The water flow can rotate with the flow velocity meter 303. The water flow can change its angle by passing through the flow indicator 304 so as to follow the direction of water flow. The flow indicator 304 is fixedly connected to the lower outer wall of the main shaft 1. The sensor structures used in this case are all waterproof models, and all have a wireless module (such as Bluetooth) inside, which can transmit data to the handheld instrument 7 for display in real time.

[0024] See attached document Figure 1-6In this embodiment, the positioning component 4 includes a top bracket 405 and a pointer 402. The upper end of the outer wall of the top bracket 405 is rotatably connected to the main shaft 1. A direction frame 404 is fixedly connected to the upper end of the top bracket 405. A magnetic needle 403 is fixedly connected to the left and right outer walls of the direction frame 404. The magnetic needle 403 works on the same principle as a compass and can adjust the angle of the direction frame 404 in real time to make it face the cardinal directions. Position sensors 401 are installed on the four outer walls of the direction frame 404 and the upper outer wall of the pointer 402. The model of the position sensor 401 can be determined according to the usage requirements. The lower end of the pointer 402 is fixedly connected to the main shaft 1. Corresponding direction indicators are processed on the four ends of the direction frame 404. The direction indicators are N (North), S (South), W (West), and O (East). The arrow direction of the pointer 402 is consistent with the arrow direction of the flow indicator 304.

[0025] Working principle:

[0026] When this new type of hydraulic measurement flow velocity detector is needed, the user can first use the device by hand, holding the handheld instrument 7 in one hand and the handle 5 in the other. Then, insert the device into the water surface to be measured, so that the flow direction indicator 304 and the flow velocity meter 303 are submerged slightly. At this time, the direction frame 404 can be automatically rotated and adjusted by the magnetic needle 403, so that the four marks of the direction frame 404 are aligned with the four directions of east, south, west, and north. At the same time, the direction of water flow at the measurement position will drive the flow direction indicator 305 to rotate, so that the arrow part of the flow direction indicator 305 points in the direction of the water flow. At the same time, the flow direction indicator 305 can drive the pointer 402 to rotate through the main shaft 1. In addition, the flow of water will also drive the flow velocity meter 303 to rotate, so that the flow velocity meter 303 will drive the detection shaft of the speed sensor 302 to rotate. Then, the speed sensor 302 will obtain data and transmit the information to the handheld instrument 7 through the wireless module. In this way, the flow velocity of the water body at this location can be measured for subsequent monitoring and analysis.

[0027] However, traditional measurement structures only briefly submerge the object to measure the specific rotational speed and then calculate the corresponding flow velocity of the water feature (e.g., a river). However, since the real-time flow direction of water surfaces like rivers is uncertain, different flow direction changes can lead to inaccurate measurements of the rotational speed from the bottom of the liquid surface, and from the top, it's also impossible to accurately determine the change in flow direction, affecting the accuracy of the final flow velocity measurement. Therefore, this design incorporates a velocity measuring component 3 and a position measuring component 4. During measurement, the flow direction indicator 304 constantly detects changes in the water flow direction and automatically adjusts in real time. The main shaft 1 then drives the pointer 402 to rotate accordingly. By observing the position changes of the pointer 402, the change in water flow direction is constantly understood. The position of the pointer 402 is then monitored by the position sensor 401 installed on the pointer 402 and the direction frame 404. Sensor 401 can sense the direction of the direction frame 404 on all four sides of the direction frame 404 in real time and display the specific angle on the handheld instrument 7. It records the real-time data and selects the most stable flow direction to read the data from the corresponding speed sensor 302 after measurement. This effectively avoids the problem that different water flow direction changes will cause inaccurate speed measurement from the liquid surface to the bottom, and the water flow direction from the liquid surface to the top cannot accurately understand the change in the water flow direction at this time, which will affect the accuracy of the final flow rate measurement. In addition, the measurement can also be completed by observing the angle change of pointer 402. For example, if the position of pointer 402 is relatively stable for a period of time, the speed sensor 302 data displayed on the handheld instrument 7 can be read directly. After the test is completed, the whole structure can be removed from the water surface.

[0028] Note: The sensors used in this case are all waterproof and have internal wireless modules (such as Bluetooth) that can transmit data to the handheld instrument 7 for display in real time.

[0029] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A novel flow velocity detector for hydraulic measurement, comprising a main shaft (1) and a bearing housing (2), wherein the inner wall of the bearing housing (2) is rotatably connected to the main shaft (1) via multiple bearings, characterized in that: The outer wall of the bearing seat (2) is fixedly connected with a supporting plate (6), the other side of the outer wall of the bearing seat (2) is fixedly connected with a handle (5), the upper end of the main shaft (1) is provided with a position measuring assembly (4), and the lower end of the main shaft (1) is provided with a speed measuring assembly (3).

2. The new type of flow velocity detector for water conservancy measurement according to claim 1, characterized in that: The speed measuring assembly (3) comprises a flow direction marker (304) and a bottom support (305), the bottom support (305) is fixedly connected to the lower end of the main shaft (1), the inner wall of the bottom support (305) is fixedly connected with a rotating speed sensor (302), the detection shaft of the rotating speed sensor (302) is rotatably connected with the bottom support (305) through a bearing (301), the output shaft of the rotating speed sensor (302) is fixedly connected with a flow speed indicator (303), and the flow direction marker (304) is fixedly connected to the lower outer wall of the main shaft (1).

3. The new type of flow velocity detector for water conservancy measurement according to claim 1, characterized in that: The upper end of the supporting plate (6) is fixedly connected with a handheld instrument (7).

4. The new type of flow velocity detector for water conservancy measurement according to claim 1, characterized in that: The position measuring assembly (4) comprises a top support (405) and a pointer (402), the outer wall of the top support (405) is rotatably connected to the main shaft (1), the upper end of the top support (405) is fixedly connected with a direction frame (404), the left and right outer walls of the direction frame (404) are fixedly connected with a magnetic needle (403), the outer walls of the four sides of the direction frame (404) and the upper outer wall of the pointer (402) are provided with position sensors (401), and the lower end of the pointer (402) is fixedly connected with the main shaft (1).

5. The novel flow rate probe for hydraulic measurements according to claim 4, characterized in that: The four side ends of the direction frame (404) are provided with corresponding direction indicators.

6. The new type of flow velocity detector for water conservancy measurement according to claim 4, characterized in that: The arrow direction of the pointer (402) is consistent with the arrow direction of the flow direction marker (304).

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