Portable flow velocity and flow direction wireless sensing measuring instrument

Abstract

The utility model relates to the technical field of water monitoring equipment, in particular to a portable flow velocity and flow direction wireless sensing measuring instrument, which comprises a mounting rod, a controller, a retracting and releasing mechanism and a detection mechanism, the top of the mounting rod is integrally provided with a handle, and the retracting and releasing mechanism comprises a crank, a turntable, a steel tape and a connecting assembly. The detection mechanism comprises a metal balance disc, a measuring rod, a waterproof wireless flow velocity sensor, a rotating assembly and an indicating assembly, the rotating assembly is arranged at the bottom of the waterproof wireless flow velocity sensor, and the indicating assembly is detachably arranged at the bottom of the rotating assembly. The flow velocity and the flow direction of a river can be accurately measured, measurement data are displayed in real time through the liquid crystal display screen, measurement personnel can conveniently know a detection result in real time, the integrated measurement effect of the flow velocity and the flow direction of the river is achieved, and the measurement requirement of the low-flow-velocity river can be met.

Description

Technical Field

[0001] This utility model relates to the field of river flow velocity detection technology, specifically to a portable wireless sensor measuring instrument for flow velocity and direction. Background Technology

[0002] In water quality monitoring, obtaining information on river flow velocity and direction is essential, as it directly affects the diffusion and migration of pollutants in the water. By monitoring the flow velocity and direction of rivers, we can accurately determine the direction and speed of pollutant propagation, predict the scope of pollution impact, and provide crucial information for emergency response and pollution control.

[0003] Existing detection devices have the following shortcomings:

[0004] 1. Existing current meters are divided into fixed current meters and portable current meters. Fixed current meters lack mobility and are expensive. Existing portable current meters are located in the middle of the river cross-section because the standard measurement method of current velocity is located in the middle of the river cross-section. When the river is wide and the bridge is too high, the standard measurement method cannot be met and the measurement can only be performed on the bank, which affects the accuracy of the data.

[0005] 2. Currently, most rivers have low flow velocities, and the flow direction is unclear on-site. Flow direction instruments cannot accurately measure low-velocity rivers, so integrating flow velocity and flow direction is very important. Utility Model Content

[0006] The purpose of this invention is to provide a portable wireless sensor for measuring flow velocity and direction.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A portable wireless flow velocity and direction sensor is provided, including a mounting rod, which has a cross-shaped structure and a handle integrally formed on the top of the mounting rod;

[0009] It also includes a controller, a take-up and take-down mechanism, and a testing mechanism;

[0010] The controller is detachably mounted on the outer wall of the handle and has an LCD display screen.

[0011] The winding and unwinding mechanism is located on the mounting rod. The winding and unwinding mechanism includes a crank handle, a turntable, a steel tape measure, and a connecting assembly. A first rotating shaft is rotatably mounted on the outer wall of the mounting rod. The crank handle and the turntable are respectively fixed at both ends of the first rotating shaft. The steel tape measure is wound on the outer wall of the turntable. The connecting assembly is located between the end of the steel tape measure away from the first rotating shaft and the detection mechanism.

[0012] The detection mechanism is located on the connecting assembly. The detection mechanism includes a metal balance disk, a measuring rod, a waterproof wireless flow rate sensor, a rotating assembly, and an indicating assembly. The metal balance disk is located on the connecting assembly, the measuring rod is fixedly located at the bottom of the metal balance disk, the waterproof wireless flow rate sensor is fixedly located at the bottom of the measuring rod, the rotating assembly is located at the bottom of the waterproof wireless flow rate sensor, and the indicating assembly is detachably located at the bottom of the rotating assembly.

[0013] Preferably, the connecting assembly includes a plug and a pin. A sleeve is fixedly provided on the top of the metal balance disc. The plug is inserted into the sleeve. The end of the steel measuring tape away from the first rotating shaft is provided with a plug hole for the plug to pass through. The pin is inserted into the outer wall of the plug. The outer wall of the plug is provided with a pin hole for the pin to be inserted.

[0014] Preferably, the rotating assembly includes a miniature propeller, a filter housing, a spline, and a second rotating shaft. The filter housing is fixed to the bottom of the waterproof wireless flow sensor via a connecting rod. The second rotating shaft is rotatably located at the inner center of the filter housing. The miniature propeller is sleeved on the outer wall of the second rotating shaft. The spline is fixed to the outer wall of the second rotating shaft and is inserted into the miniature propeller. The bottom of the filter housing is provided with an outlet, and a cover plate is inserted into the outlet.

[0015] Preferably, the indicating component includes a dial and a pointer, with the dial located below the filter housing and the pointer rotating at the bottom of the dial.

[0016] Preferably, a limiting rod is fixedly provided at the bottom of the filter housing, a protrusion is fixedly provided at the top center of the dial, a groove is provided on the inner wall of the protrusion, a buckle is slidably provided inside the groove by a sliding rod, a retaining spring is sleeved on the outer wall of the sliding rod, a push block is fixedly provided at the end of the sliding rod away from the buckle, a through hole is provided at the top of the protrusion for the limiting rod to be inserted, and a slot is provided on the bottom outer wall of the limiting rod for the buckle to engage.

[0017] Preferably, a number of filter grooves are evenly spaced on the outer wall of the filter housing.

[0018] Preferably, a one-button recording function is provided on the outer wall of the controller.

[0019] Preferably, the outer wall of the handle is integrally formed with a grip groove for human hand gripping.

[0020] The beneficial effects of this utility model are:

[0021] This utility model, through the design of a retractable mechanism, namely a crank, a turntable, a steel measuring tape, and connecting components, enables surveyors to conveniently measure the direction and velocity of water flow from a higher position above the river surface, such as the middle of a tall bridge. At the same time, it can measure wide rivers without having to measure only from the bank, thus improving the accuracy of measuring the direction and velocity of river flow.

[0022] This utility model, through the design of an installation rod, handle, controller, retraction mechanism, and detection mechanism, and through the design of connecting components, enables the disassembly and assembly of the steel measuring tape and the metal balance disc. Through the design of components such as buckles, slots, clamping springs, and sliding rods, it enables the disassembly and assembly of the measuring rod, pointer, and scale. Furthermore, by designing a waterproof wireless flow velocity sensor, it avoids excessively long measurement signal cables, allowing the measuring instrument to be disassembled in sections when traveling and reassembled upon arrival at the river being measured, thus improving the portability of the measuring instrument.

[0023] This invention, through the design of a detection mechanism comprising a metal balance disc, a measuring rod, a waterproof wireless flow velocity sensor, a rotating component, and an indicating component, enables precise measurement of river flow velocity and direction. The measurement data is displayed in real-time on an LCD screen, allowing measurement personnel to easily access the results. This integrated measurement of river flow velocity and direction meets the measurement requirements for low-velocity rivers.

[0024] This invention, through the design of a metal balance disc, can ensure the stable operation of the micro propeller when the measurement height is too high, and improve wind resistance, preventing the measuring instrument from drifting with the wind and reducing measurement accuracy.

[0025] This invention, through the design of splines, enables the rapid assembly and disassembly of the micro propeller, making it convenient and quick to replace the micro propeller when damaged, without delaying the measurement work. At the same time, the design of the filter shell covers and protects the micro propeller, and the several filter grooves designed on the filter shell can filter aquatic plants or other floating objects in the water, preventing them from entering the filter shell and getting entangled in the micro propeller, thus preventing measurement failure. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0027] Figure 2 for Figure 1 Enlarged view of point A in the image;

[0028] Figure 3 This is a cross-sectional three-dimensional structural diagram of the filter housing of this utility model;

[0029] Figure 4 for Figure 3 Enlarged view of point B in the image;

[0030] Figure 5 for Figure 3 Enlarged view of point C in the image;

[0031] Figure 6 for Figure 3 Enlarged view of point D in the image;

[0032] Figure 7This is a three-dimensional exploded view of the steel measuring tape and metal balance disc of this utility model;

[0033] Figure 8 for Figure 7 Enlarged view of point E in the image;

[0034] In the diagram: 1. Mounting rod; 2. Handle; 3. Controller; 4. LCD screen; 5. Crank handle; 6. Turntable; 7. Steel measuring tape; 8. First rotating shaft; 9. Metal balance disc; 10. Measuring rod; 11. Waterproof wireless flow sensor; 12. Connecting post; 13. Pin; 14. Sleeve plate; 15. Miniature propeller; 16. Filter housing; 17. Spline; 18. Second rotating shaft; 19. Connecting rod; 20. Cover plate; 21. Dial; 22. Pointer; 23. Limiting rod; 24. Protrusion; 25. Sliding rod; 26. Buckle; 27. Clamping spring; 28. Toggle block; 29. ​​Filter groove; 30. One-button recording; 31. Grip groove. Detailed Implementation

[0035] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product.

[0037] Reference Figures 1 to 8 As shown, a portable wireless flow velocity and direction sensor includes a mounting rod 1, which has a cross-shaped structure. The top of the mounting rod 1 is integrally formed with a handle 2, which makes it convenient for the measuring personnel to grip the measuring instrument and improves its portability.

[0038] It also includes controller 3, take-up and take-down mechanism and detection mechanism;

[0039] The controller 3 is detachably mounted on the outer wall of the handle 2, and the controller 3 is equipped with an LCD screen 4;

[0040] The retraction mechanism is located on the mounting rod 1. The retraction mechanism includes a crank handle 5, a turntable 6, a steel tape measure 7, and a connecting component. A first rotating shaft 8 is rotatably mounted on the outer wall of the mounting rod 1. The crank handle 5 and the turntable 6 are respectively fixed at both ends of the first rotating shaft 8. The steel tape measure 7 is wound on the outer wall of the turntable 6. The outer wall of the steel tape measure 7 is designed with scale values ​​to facilitate the measurement personnel to record the bridge monitoring height in real time. The connecting component is located between the end of the steel tape measure 7 away from the first rotating shaft 8 and the detection mechanism.

[0041] The detection mechanism is located on the connecting assembly. The detection mechanism includes a metal balance disk 9, a measuring rod 10, a waterproof wireless flow rate sensor 11, a rotating assembly, and an indicating assembly. The metal balance disk 9 is located on the connecting assembly. The metal balance disk 9 ensures the stable operation of the miniature propeller 15 when the measurement height is too high, and improves wind resistance to prevent the measuring instrument from drifting with the wind and reducing measurement accuracy. The measuring rod 10 is fixedly located at the bottom of the metal balance disk 9. The waterproof wireless flow rate sensor 11 is fixedly located at the bottom of the measuring rod 10. The design of the waterproof wireless flow rate sensor 11 can effectively avoid the problem of excessively long signal cables and inconvenience in carrying. The rotating assembly is located at the bottom of the waterproof wireless flow rate sensor 11, and the indicating assembly is detachably located at the bottom of the rotating assembly.

[0042] Reference Figures 1 to 8 As shown, the connecting assembly includes a plug post 12 and a pin 13. A sleeve plate 14 is fixedly provided on the top of the metal balance disc 9. The plug post 12 is inserted into the sleeve plate 14. The end of the steel measuring tape 7 away from the first rotating shaft 8 has a socket for the plug post 12 to pass through. The pin 13 is inserted into the outer wall of the plug post 12. The outer wall of the plug post 12 has a pin hole for the pin 13 to be inserted. When it is necessary to remove the detection mechanism, the pin 13 in the pin hole is pulled out vertically to unlock the pin hole. Then the plug post 12 is pulled out horizontally from the socket hole to unlock the steel measuring tape 7. This unlocks the steel measuring tape 7 from the metal balance disc 9, making it easy to disassemble the measuring instrument and achieve a portable effect.

[0043] Reference Figures 1 to 8As shown, the rotating assembly includes a miniature propeller 15, a filter housing 16, a spline 17, and a second rotating shaft 18. The filter housing 16 is fixed to the bottom of the waterproof wireless flow sensor 11 via a connecting rod 19. The second rotating shaft 18 is rotatably located at the inner center of the filter housing 16. The miniature propeller 15 is sleeved on the outer wall of the second rotating shaft 18, and the spline 17 is fixed to the outer wall of the second rotating shaft 18, with the spline 17 inserted into the miniature propeller 15. The bottom of the filter housing 16 has an outlet, and a cover plate 20 is inserted into the outlet. During measurement, the worker first rotates the first rotating shaft 8 by cranking the handle 5, thereby rotating the turntable 6 and unwinding the steel measuring tape 7. Then, through the metal balance disc 9 and the measuring tool, the miniature propeller 15 is inserted into the water. The miniature propeller 15 is propelled by the water flow. Under the action of the second rotating shaft 18, the end of the second rotating shaft 18 away from the micro propeller 15 is fixedly connected to the rotor inside the waterproof wireless flow velocity sensor 11, thereby driving the rotor to rotate and transmitting the signal to the inside of the controller 3 through the signal connector. The calculation module installed inside the controller 3 calculates the flow velocity value based on the received signal and a specific calculation formula, and displays it on the scale 21. At the same time, the flow velocity value is uploaded to the LCD screen 4 in digital form, so that the measurement personnel can watch it in real time and accurately know the flow velocity of the river. When the micro propeller 15 is damaged, it can be disassembled by manually pulling the cover plate 20 from the outlet and then pulling the micro propeller 15 off the second rotating shaft 18, so as to facilitate timely replacement when it is damaged.

[0044] Reference Figures 1 to 8 As shown, the indicating component includes a dial 21 and a pointer 22. The dial 21 is located below the filter housing 16, and the pointer 22 is located at the bottom of the dial 21. When measuring the river flow velocity, the pointer 22 will rotate due to the force of the water flow as it passes through. The rotation angle of the pointer 22 corresponds to the direction of the water flow. By observing the rotation of the pointer 22, the direction of the water flow can be determined. The direction of the water flow can be displayed in real time and intuitively. The dial 21 is designed with direction scale values ​​and flow velocity scale values, which is beneficial to the accuracy and practicality of the measurement.

[0045] Reference Figures 1 to 8As shown, a limiting rod 23 is fixedly provided at the bottom of the filter housing 16, and a protrusion 24 is fixedly provided at the top center of the dial 21. A groove is provided on the inner wall of the protrusion 24, and a buckle 26 is slidably provided inside the groove through a sliding rod 25. A retaining spring 27 is sleeved on the outer wall of the sliding rod 25, and a lever 28 is fixedly provided at the end of the sliding rod 25 away from the buckle 26. A through hole for the limiting rod 23 to be inserted is provided at the top of the protrusion 24, and a slot for the buckle 26 to be engaged is provided on the bottom outer wall of the limiting rod 23. When it is necessary to remove the pointer 22 and the dial 21, the measuring personnel grasp the lever. 28. Pull the slide bar 25 and the buckle 26 away from the end of the limiting rod 23. Since the lever 28 and the buckle 26 are fixedly connected to the two ends of the slide bar 25 respectively, the slide bar 25 is slidably connected to the slide groove. This allows the slide bar 25 to slide away from the limiting rod 23 inside the slide groove, causing the buckle 26 to move out of the slot and unlocking the limiting rod 23. During this process, the retaining spring 27 changes from the initial state of the rotating plate to the retracted state, thereby unlocking the pointer 22 and the dial 21. When no measurement is needed, this makes it convenient to carry the measuring instrument with you, improving its convenience.

[0046] Reference Figures 1 to 8 As shown, a number of filter grooves 29 are evenly spaced on the outer wall of the filter housing 16. The filter grooves 29 can filter aquatic plants or other floating objects in the water to prevent them from entering the interior of the filter housing 16 and getting entangled in the micro propeller 15, which would cause the measurement work to fail.

[0047] Reference Figures 1 to 8 As shown, a one-key recording button 30 is provided on the outer wall of the controller 3. When the measurement work starts, the data can be quickly recorded on site by manually pressing the one-key recording button 30, which can speed up the on-site work efficiency and facilitate the recording of monitoring time, flow rate, flow direction scale, etc.

[0048] Reference Figures 1 to 8 As shown, the outer wall of the handle 2 is integrally formed with a grip groove 31 for human hand gripping. The grip groove 31 is designed with an arc-shaped structure that conforms to the contour of the human fingertip, making it more comfortable and stable for the measuring personnel to grip the handle 2, which helps to improve the user experience of this measuring instrument.

Claims

1. A portable wireless flow velocity and direction sensor, comprising a mounting rod (1), wherein the mounting rod (1) has a cross-shaped structure and a handle (2) is integrally formed on the top of the mounting rod (1), characterized in that: It also includes a controller (3), a take-up and take-down mechanism, and a detection mechanism; The controller (3) is detachably mounted on the outer wall of the handle (2), and the controller (3) is equipped with an LCD screen (4). The winding and unwinding mechanism is located on the mounting rod (1). The winding and unwinding mechanism includes a crank (5), a turntable (6), a steel tape measure (7), and a connecting assembly. A first rotating shaft (8) is rotatably provided on the outer wall of the mounting rod (1). The crank (5) and the turntable (6) are respectively fixed at both ends of the first rotating shaft (8). The steel tape measure (7) is wound on the outer wall of the turntable (6). The connecting assembly is located between the end of the steel tape measure (7) away from the first rotating shaft (8) and the detection mechanism. The detection mechanism is located on the connecting assembly. The detection mechanism includes a metal balance disk (9), a measuring rod (10), a waterproof wireless flow sensor (11), a rotating assembly, and an indicating assembly. The metal balance disk (9) is located on the connecting assembly. The measuring rod (10) is fixedly located at the bottom of the metal balance disk (9). The waterproof wireless flow sensor (11) is fixedly located at the bottom of the measuring rod (10). The rotating assembly is located at the bottom of the waterproof wireless flow sensor (11). The indicating assembly is detachably located at the bottom of the rotating assembly.

2. The portable flow rate and flow direction wireless sensing measurement instrument according to claim 1, wherein: The connecting assembly includes a plug (12) and a pin (13). A sleeve (14) is fixedly provided on the top of the metal balance disc (9). The plug (12) is inserted into the sleeve (14). The end of the steel tape measure (7) away from the first rotating shaft (8) is provided with a plug hole for the plug (12) to pass through. The pin (13) is inserted into the outer wall of the plug (12). The outer wall of the plug (12) is provided with a pin hole for the pin (13) to be inserted.

3. The portable flow rate and flow direction wireless sensing measurement instrument according to claim 2, wherein: The rotating assembly includes a micro propeller (15), a filter housing (16), a spline (17), and a second shaft (18). The filter housing (16) is fixed to the bottom of the waterproof wireless flow sensor (11) via a connecting rod (19). The second shaft (18) is rotatably located at the inner center of the filter housing (16). The micro propeller (15) is sleeved on the outer wall of the second shaft (18). The spline (17) is fixed on the outer wall of the second shaft (18) and is inserted into the micro propeller (15). The bottom of the filter housing (16) is provided with an outlet, and a cover plate (20) is inserted into the outlet.

4. The portable flow rate and flow direction wireless sensing measurement instrument according to claim 3, wherein: The indicator components include a dial (21) and a pointer (22). The dial (21) is located below the filter housing (16), and the pointer (22) is located at the bottom of the dial (21).

5. The portable flow rate and flow direction wireless sensing measurement instrument of claim 4, wherein: A limiting rod (23) is fixedly provided at the bottom of the filter housing (16), a protrusion (24) is fixedly provided at the top center of the dial (21), a groove is provided on the inner wall of the protrusion (24), a buckle (26) is provided inside the groove through the sliding rod (25), a retaining spring (27) is sleeved on the outer wall of the sliding rod (25), a pusher block (28) is fixedly provided at the end of the sliding rod (25) away from the buckle (26), a through hole is provided at the top of the protrusion (24) for the limiting rod (23) to be inserted, and a slot is provided on the bottom outer wall of the limiting rod (23) for the buckle (26) to be engaged.

6. The portable flow rate and flow direction wireless sensing measurement instrument of claim 5, wherein: Several filter grooves (29) are equally spaced on the outer wall of the filter housing (16).

7. A portable wireless flow velocity and direction sensor according to claim 6, characterized in that: A one-key recording button (30) is provided on the outer wall of the controller (3).

8. The portable flow rate and flow direction wireless sensing measurement instrument of claim 7, wherein: The outer wall of the handle (2) is integrally formed with a grip groove (31) for human hand gripping.

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