Water flow measuring device

Abstract

The invention relates to the related technical field of water flow detection equipment, and discloses a water flow measuring device which comprises a connecting rod, a detection device is arranged on the connecting rod and comprises fan blades, a connecting shaft is rotatably connected to the side faces of the fan blades, a supporting rod is fixedly connected to the center of the connecting shaft in the vertical direction, and a connecting disc is rotatably connected to the side face of the connecting shaft. A movable rod is rotationally connected to the side face of the connecting disc, the connecting disc comprises a connecting bottom plate, a transmission gear and a driving gear are connected to the inner side face of the connecting bottom plate in a meshed mode, a connecting table, a fixing block and a detector are arranged on the side face of the driving gear, and a detection element is arranged in the fan blade; the device is provided with the detection device, a detector can be cleaned in the detection process, the situation that the detector is blocked by weeds and other sundries in water and the detection effect is affected is effectively avoided, the device is further provided with the detection element, the state of the fan blades can be detected through the detection element, the measurement and calculation result of the detector can be verified, and the accuracy of the detection result is improved.

Description

Technical Field

[0001] The present invention relates to the technical field related to water flow detection equipment, and in particular to a water flow measuring device. Background Art

[0002] In the management, maintenance, administration and monitoring of small and medium-sized rivers, long-term monitoring and measurement of water flow velocities at different offshore locations and water depths, data statistics, accurate determination of the average flow rate of a river channel at a certain period (such as daily average flow rate, monthly average flow rate, annual average flow rate, etc.), calculation of riverbed scouring depth, sediment transport deduction, river hydraulic calculation and other hydrological and hydraulic analyses all play a very important role.

[0003] Publication number CN220251975U discloses a river flow velocity measurement device, including a mounting structure, a locking structure, a flow velocity measurement structure, and a pulling structure. The mounting structure has a column and a horizontal fixing member rotatably arranged on the column; the locking structure locks the horizontal fixing member to the column; the flow velocity measurement structure has multiple flow velocity measurement components with the same structure, and the multiple flow velocity measurement components are spaced apart on the horizontal fixing member, and the flow velocity measurement components are detachably connected to the horizontal fixing member; one end of the traction rope of the pulling structure is fixed to the top of the column and the other end is fixed to the distal end of the horizontal fixing member. This device installs multiple flow velocity measurement components on the horizontal fixing member, which can realize simultaneous monitoring of multiple measurement points; the flow velocity measurement component is detachably connected to the horizontal fixing member, which is convenient for adjusting the height of the flow monitoring component and realizing real-time monitoring of different depths; the mounting plate can be rotated relative to the column to meet the monitoring needs of different locations, and the operation is more flexible.

[0004] When measuring water flow velocity, instruments such as Doppler flowmeters, velocity meters or velocity flowmeters are usually used for measurement. However, during the measurement process, the underwater conditions are complicated and foreign objects such as weeds may block the detection port of the measuring instrument, thereby affecting the measurement accuracy. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a water flow measuring device to solve the problems existing in the above-mentioned background technology.

[0006] The present invention provides the following technical solution: a water flow measuring device, comprising a connecting rod, a detection device being provided on the connecting rod, the detection device comprising a fan blade, the side surface of the fan blade being rotatably connected to the connecting shaft, the center of the connecting shaft being fixedly connected to a support rod in a vertical direction, the support rod being rotatably connected to the connecting rod, the side surface of the connecting shaft being rotatably connected to a connecting disk, the connecting disk being provided with a motor, the side surface of the connecting disk being rotatably connected to a movable rod, the side surface of the movable rod being fixedly connected to a cleaning block, the connecting disk comprising a connecting base plate, the inner side surface of the connecting base plate being meshed with a transmission gear, the inner side surface of the transmission gear being meshed with a driving gear, the side surface of the driving gear being fixedly connected to a connecting platform, the side surface of the connecting platform being fixedly connected to a fixed block, the side surface of the connecting base plate being rotatably connected to a movable disk, the center of the movable disk being fixedly connected to a driving rod, the driving gear being fixedly connected to an output shaft of the motor, the driving rod being fixedly connected to the movable rod, the side surface of the connecting shaft being fixedly connected to a detector, and a detection element being provided inside the fan blade;

[0007] When in use, the device is placed underwater, and the flow of water in the water drives the detection device to rotate on the connecting rod, and at the same time drives the fan blades to rotate. When the fan blades rotate, they drive the driving gears fixed to them to rotate. The rotation of the driving gear drives the connecting platform and the fixed block set on the side to rotate, and the fixed block drives the movable disk to rotate. The movable disk drives the driving rod and the movable rod to rotate, and the movable rod drives the cleaning block to rotate. During the detection process, the cleaning block can be used to clean the detector, which can effectively prevent weeds and other debris in the water from clogging the detector and affecting the detection effect. At the same time, the status of the fan blades can be detected by the detector, and the measurement results of the detector can be verified, thereby improving the reliability of the detection results.

[0008] Furthermore, a float is provided on the top of the connecting rod, and the float is a polyethylene float wrapped with rubber on the outside. The connecting rod and the float are fixed together by a polypropylene rope. When in use, the position is marked by the float, and the placement position can be quickly found. Polyethylene and polypropylene themselves have good corrosion resistance and wear resistance, and also have environmentally friendly properties.

[0009] Furthermore, the bottom of the connecting rod is fixedly connected to a load-bearing device, the bottom of the load-bearing device is fixedly connected to a base, and the base is fixedly connected to a drilling device. The drilling device is used to dig downward to fix the base on the riverbed, and cooperate with the load-bearing device to further improve stability.

[0010] Furthermore, a straight slot is provided on the movable disk, and the straight slot is movably connected to the fixed block.

[0011] Furthermore, the cleaning block includes a cleaning plate, a cleaning filter hole is opened on the cleaning plate, a filter mesh 1 is fixedly connected at the cleaning filter hole on the cleaning plate, and a filter mesh 2 is fixedly connected at the cleaning filter hole on the rear side of the cleaning plate, and the aperture of the filter mesh 1 is larger than that of the filter mesh 2.

[0012] Furthermore, a fixing claw is rotatably connected to the top of the cleaning plate, and a plurality of outward prongs are provided on the fixing claw. A cleaning hole is opened on a single side surface of the cleaning plate.

[0013] During use, the motor drives the drive gear to rotate, and the drive gear drives the connecting table and the fixed block to rotate. When the fixed block rotates, it will move to the straight slot opened on the movable disk and drive the movable disk to rotate through the fixed block. The movable disk will cause different rotation angles due to the different distances between the fixed block and the movable disk, and the rotation range is between thirty and ninety degrees. At the same time, the rotation of the movable disk will drive the drive rod to rotate, and the drive rod drives the movable rod and the cleaning block to rotate. The end face of the detector is cleaned and intercepted by the cleaning block. A plurality of outward forks are provided on the fixed claw to intercept flocculent matter. The particulate matter will first be intercepted by the filter screen 1 at the cleaning filter hole. Smaller particles pass through the filter screen 1 and enter the filter screen 2 and are intercepted. They are then thrown out from the cleaning hole by the rotation of the cleaning plate. The structure of the movable disk and the fixed block will make the cleaning plate rotate with a smaller amplitude during the rotation motion. The centrifugal force generated is not enough to throw out the impurities when the cleaning plate rotates to the upper half. Therefore, the impurities will be thrown downward when the cleaning plate rotates to the lower half, and the impurities will not be thrown everywhere, thereby affecting the cleaning effect.

[0014] Furthermore, a power generating device is provided inside the connecting shaft, and the power source of the power generating device is a fan blade. The detection element includes a data monitoring device, a data processing device and a feedback device. The data monitoring device is used to monitor the output power of the power generating device, and the data processing device performs data processing to obtain the approximate range of the water flow rate. The feedback device is used to transmit the monitoring data of the detector and the data processing device to the outside via Bluetooth.

[0015] When the water flow drives the fan blades to rotate, the fan blades capture the kinetic energy of the water flow and convert it into mechanical energy (rotational energy). This mechanical energy is further converted into electrical energy through the generator. At the same time, the power captured by the fan blades (P capture ) is usually related to the water velocity (v), the blade area (A), and the efficiency of the blade (η), and the formula is:

[0016]

[0017] The output power of the generator (P elec ) can be expressed as:

[0018] Pelec =P capture ×η gen

[0019] where η gen is the efficiency of the generator, and the water flow velocity (v) can be obtained by combining the above formula:

[0020]

[0021] However, in reality, the water flow velocity is also affected by changes in water flow conditions, the design of fan blades and generators, the accuracy of measuring equipment, and environmental factors, which may lead to errors in the calculated results. Therefore, it is mainly used to assist detectors in measuring water flow velocity.

[0022] Furthermore, an angle measuring device is provided at the connection point between the connecting rod and the supporting rod, and the rotation angle of the connecting shaft can be measured when the connecting shaft rotates.

[0023] Beneficial effects:

[0024] 1. The water flow measuring device is provided with a detection device. The fixed block and movable disk arranged inside the device cooperate with each other to drive the cleaning block to rotate periodically. During the detection process, the cleaning block can be used to clean the detector, which can effectively prevent weeds and other debris in the water from clogging the detector and affecting the detection effect, thereby improving the accuracy of the detection results.

[0025] 2. The water flow measuring device is provided with a detection element, which can detect the status of the fan blades through the detection element, and can verify the measurement results of the detector, thereby improving the reliability of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a water flow measurement device proposed by the present invention;

[0027] Figure 2 A schematic diagram of the internal structure of a detection device of a water flow measurement device proposed by the present invention;

[0028] Figure 3 This is a schematic diagram of the internal structure of a connection plate of a water flow measurement device proposed by the present invention;

[0029] Figure 4 This is a schematic diagram of the internal structure of a cleaning block of a water flow measuring device proposed by the present invention.

[0030] In the figure: 1. Load-bearing device; 2. Connecting rod; 3. Detection device; 301. Fan blade; 302. Support rod; 303. Connecting shaft; 304. Connecting disk; 3041. Connecting bottom plate; 3042. Driving gear; 3043. Transmission gear; 3044. Connecting platform; 3045. Fixed block; 3046. Driving rod; 3047. Movable disk; 305. Movable rod; 306. Cleaning block; 3061. Cleaning plate; 3062. Cleaning filter hole; 3063. Fixed claw; 3064. Cleaning hole; 307. Detector; 4. Base; 5. Drilling device; 6. Float. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example 1

[0033] See also Figure 1-Figure 3 , a water flow measuring device includes a connecting rod 2, a detection device 3 is provided on the connecting rod 2, the detection device 3 includes a fan blade 301, the side of the fan blade 301 is rotatably connected to a connecting shaft 303, the center of the connecting shaft 303 is fixedly connected to a support rod 302 in the vertical direction, the support rod 302 is rotatably connected to the connecting rod 2, the side of the connecting shaft 303 is rotatably connected to a connecting disk 304, a motor is provided at the connecting disk 304, a movable rod 305 is rotatably connected to the side of the connecting disk 304, a cleaning block 306 is fixedly connected to the side of the movable rod 305, the connecting disk 304 includes a connecting bottom plate 3041, and the inner side of the connecting bottom plate 3041 is fixedly connected to the cleaning block 306. A transmission gear 3043 is meshedly connected, and a driving gear 3042 is meshedly connected on the inner side surface of the transmission gear 3043. A connecting platform 3044 is fixedly connected to the side surface of the driving gear 3042, and a fixing block 3045 is fixedly connected to the side surface of the connecting platform 3044. A movable disk 3047 is rotatably connected to the side surface of the connecting base 3041, and a driving rod 3046 is fixedly connected to the center of the movable disk 3047. The driving gear 3042 is fixedly connected to the motor output shaft, and the driving rod 3046 is fixedly connected to the movable rod 305. A detector 307 is fixedly connected to the side surface of the connecting shaft 303, and a detection element is provided inside the fan blade 301.

[0034] When in use, the device is placed underwater, and the flow of water in the water drives the detection device 3 to rotate on the connecting rod 2, and at the same time drives the fan blade 301 to rotate. When the fan blade 301 rotates, it drives the driving gear 3042 fixed to it to rotate. The rotation of the driving gear 3042 drives the connecting platform 3044 and the fixed block 3045 set on the side to rotate, and the fixed block 3045 drives the movable disk 3047 to rotate. The movable disk 3047 drives the driving rod 3046 and the movable rod 305 to rotate, and the movable rod 305 drives the cleaning block 306 to rotate. During the detection process, the cleaning block 306 can be used to clean the detector 307, which can effectively prevent weeds and other debris in the water from blocking the detector 307 and affecting the detection effect. At the same time, the state of the fan blade 301 can be detected by the detection element, and the measurement result of the detector 307 can be verified, thereby improving the reliability of the detection result.

[0035] Example 2

[0036] See also Figures 1-4 A float 6 is provided on the top of the connecting rod 2. The float 6 is a polyethylene float wrapped with rubber on the outside. The connecting rod 2 and the float 6 are fixed together by a polypropylene rope. When in use, the position is marked by the float 6, and the placement position can be quickly found. Polyethylene and polypropylene themselves have good corrosion resistance and wear resistance, and also have environmental protection properties.

[0037] The bottom of the connecting rod 2 is fixedly connected to a load-bearing device 1, the bottom of the load-bearing device 1 is fixedly connected to a base 4, and the base 4 is fixedly connected to a drilling device 5. The drilling device 5 is used to dig downward and fix the base 4 on the riverbed, which cooperates with the load-bearing device 1 to further improve stability.

[0038] A straight slot is provided on the movable plate 3047 , and the straight slot is movably connected to the fixed block 3045 .

[0039] The cleaning block 306 includes a cleaning plate 3061, which has a cleaning filter hole 3062 on it. Filter one is fixedly connected to the cleaning filter hole 3062 on the cleaning plate 3061, and filter two is fixedly connected to the cleaning filter hole 3062 on the rear side of the cleaning plate 3061. The aperture of filter one is larger than that of filter two.

[0040] The top of the cleaning plate 3061 is rotatably connected to a fixing claw 3063 , which is provided with a plurality of outward prongs. A cleaning hole 3064 is opened on a single side surface of the cleaning plate 3061 .

[0041] During use, the motor drives the driving gear 3042 to rotate, and the driving gear 3042 drives the connecting platform 3044 and the fixed block 3045 to rotate. When the fixed block 3045 rotates, it moves to the straight slot opened on the movable disk 3047, and drives the movable disk 3047 to rotate through the fixed block 3045. The movable disk 3047 will rotate at different angles due to the different distances between the fixed block 3045 and the movable disk 3047, and the rotation range is between thirty and ninety degrees. At the same time, the rotation of the movable disk 3047 will drive the driving rod 3046 to rotate, and the driving rod 3046 drives the movable rod 305 and the cleaning block 306 to rotate, and the end face of the detector 307 is cleaned by the cleaning block 306. The fixed claw 3063 is provided with a plurality of outward forks, which can intercept flocculent matter. The particulate matter will first be intercepted by the filter screen 1 at the cleaning filter hole 3062, and the smaller particulate matter enters the filter screen 2 through the filter screen 1 and is intercepted and thrown out from the cleaning hole 3064 through the rotation of the cleaning plate 3061. The structure of the movable disk 3047 and the fixed block 3045 will make the cleaning plate 3061 rotate at a smaller amplitude during the rotational motion, and the centrifugal force generated is not enough to throw out the impurities when the cleaning plate 3061 rotates to the upper half. Therefore, the impurities will be thrown downward when the cleaning plate 3061 rotates to the lower half, and the impurities will not be thrown everywhere, thereby affecting the cleaning effect.

[0042] A power generating device is provided inside the connecting shaft 303, and the power source of the power generating device is the fan blade 301. The detection element includes a data monitoring device, a data processing device and a feedback device. The data monitoring device is used to monitor the output power of the power generating device, and the data processing device performs data processing to obtain the approximate range of the water flow rate. The feedback device is used to transmit the monitoring data of the detector 307 and the data processing device to the outside via Bluetooth.

[0043] When the water flow drives the fan blades to rotate, the fan blades capture the kinetic energy of the water flow and convert it into mechanical energy (rotational energy). This mechanical energy is further converted into electrical energy through the generator. At the same time, the power captured by the fan blades (P capture ) is usually related to the water velocity (v), the blade area (A), and the efficiency of the blade (η), and the formula is:

[0044]

[0045] The output power of the generator (P elec ) can be expressed as:

[0046] P elec =P capture ×η gen

[0047] where η genis the efficiency of the generator, and the water flow velocity (v) can be obtained by combining the above formula:

[0048]

[0049] However, in reality, the water flow rate is also affected by changes in water flow conditions, the design of fan blades and generators, the accuracy of measuring equipment and environmental factors, which may lead to errors in the calculated results. Therefore, it is mainly used to assist the detector 307 in measuring the water flow rate.

[0050] An angle measuring device is provided at the connection between the connecting rod 2 and the supporting rod 302 , and the rotation angle of the connecting shaft 303 can be measured when the connecting shaft 303 rotates.

[0051] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A water flow measuring device, comprising a connecting rod (2), characterized in that: The connecting rod (2) is provided with a detection device (3), the detection device (3) comprises a fan blade (301), the side of the fan blade (301) is rotatably connected to a connecting shaft (303), the center of the connecting shaft (303) is fixedly connected to a support rod (302) in a vertical direction, the support rod (302) is rotatably connected to the connecting rod (2), the side of the connecting shaft (303) is rotatably connected to a connecting disk (304), a motor is provided at the connecting disk (304), the side of the connecting disk (304) is rotatably connected to a movable rod (305), the side of the movable rod (305) is fixedly connected to a cleaning block (306), the connecting disk (304) comprises a connecting base plate (3041), the inner side surface of the connecting base plate (3041) is engaged with a connecting rod (3041). A transmission gear (3043) is connected, and a driving gear (3042) is meshedly connected on the inner side surface of the transmission gear (3043), a connecting platform (3044) is fixedly connected to the side surface of the driving gear (3042), a fixing block (3045) is fixedly connected to the side surface of the connecting platform (3044), a movable disk (3047) is rotatably connected to the side surface of the connecting base plate (3041), a driving rod (3046) is fixedly connected to the center of the movable disk (3047), the driving gear (3042) is fixedly connected to the motor output shaft, the driving rod (3046) is fixedly connected to the movable rod (305), a detector (307) is fixedly connected to the side surface of the connecting shaft (303), and a detection element is provided inside the fan blade (301); When in use, the device is placed underwater, and the flow of water in the water drives the detection device (3) to rotate on the connecting rod (2), and at the same time drives the fan blade (301) to rotate. When the fan blade (301) rotates, it drives the driving gear (3042) fixedly connected thereto to rotate. The rotation of the driving gear (3042) drives the connecting platform (3044) and the fixed block (3045) arranged on the side to rotate. The fixed block (3045) drives the movable disk (3047) to rotate. The movable disk (3047) drives the driving rod (3046) and the movable rod (305) to rotate. The movable rod (305) drives the cleaning block (306) to rotate. During the detection process, the cleaning block (306) can be used to clean the detector (307), which can effectively prevent the detector (307) from being blocked by weeds and other debris in the water, thereby affecting the detection effect. At the same time, the state of the fan blade (301) can be detected by the detector, and the measurement result of the detector (307) can be verified, thereby improving the reliability of the detection result.

2. A water flow measuring device according to claim 1, characterized in that: A float (6) is provided on the top of the connecting rod (2), and the float (6) is a polyethylene float wrapped with rubber on the outside. The connecting rod (2) and the float (6) are fixedly connected together by a polypropylene rope.

3. A water flow measuring device according to claim 1, characterized in that: The bottom of the connecting rod (2) is fixedly connected to a load-bearing device (1), the bottom of the load-bearing device (1) is fixedly connected to a base (4), and the base (4) is fixedly connected to a drilling device (5).

4. A water flow measuring device according to claim 1, characterized in that: A straight slot is provided on the movable disk (3047), and the straight slot is movably connected to the fixed block (3045).

5. The water flow measuring device according to claim 1, characterized in that: The cleaning block (306) comprises a cleaning plate (3061), a cleaning filter hole (3062) is provided on the cleaning plate (3061), a filter screen 1 is fixedly connected to the cleaning filter hole (3062) on the cleaning plate (3061), and a filter screen 2 is fixedly connected to the cleaning filter hole (3062) on the rear side of the cleaning plate (3061), and the aperture of the filter screen 1 is larger than that of the filter screen 2.

6. A water flow measuring device according to claim 5, characterized in that: The top of the cleaning plate (3061) is rotatably connected to a fixing claw (3063), and the fixing claw (3063) is provided with a plurality of outward forks. A cleaning hole (3064) is opened on a single side surface of the cleaning plate (3061).

7. A water flow measuring device according to claim 1, characterized in that: A power generation device is provided inside the connecting shaft (303), the power source of the power generation device is the fan blade (301), the detection element includes a data monitoring device, a data processing device and a feedback device, the data monitoring device is used to monitor the output power of the power generation device, the data processing device performs data processing to obtain the approximate range of the water flow rate, and the feedback device is used to transmit the monitoring data of the detector (307) and the data processing device to the outside via Bluetooth.

8. A water flow measuring device according to claim 7, characterized in that: An angle measuring device is provided at the connection point between the connecting rod (2) and the supporting rod (302).

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