A water level and flow rate measuring mechanism

Abstract

The application relates to the technical field of water level and flow velocity measurement, and discloses a water level and flow velocity measurement mechanism which comprises a detection bucket, the upper side of the inner side wall of the detection bucket is provided with a first coil, the lower side of the inner side wall of the detection bucket is provided with a second coil, the rear side of the inner side wall of the detection bucket is provided with an electrode probe, the inner side wall of the detection bucket is fixedly connected with a sound wave transmitter, the inner side wall of the detection bucket is fixedly connected with a sound wave receiver, the lower surface of the detection bucket is fixedly connected with a first flow stabilizing fin, the inner side wall of the first flow stabilizing fin is provided with an ultrasonic water level gauge probe, the outer surface of the detection bucket is provided with a driving module, the upper surface of the detection bucket is fixedly connected with an anti-interference module through a connecting seat, the measurement mechanism is formed by the composite measurement technology of electromagnetic induction and acoustic Doppler, the hydraulic damping and ball head floating structure, and the infrared induction anti-winding driving system, and forms an integrated solution scheme of "precise measurement-anti-interference-convenient movement".

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water level and flow velocity measurement, and more particularly to a water level and flow velocity measurement mechanism. BACKGROUND

[0002] In the fields of water conservancy construction, hydrological dynamic monitoring, and ecological environment system research, the water level and flow velocity measurement mechanism, as the core data acquisition equipment, shoulders the key mission of obtaining basic parameters of water bodies. With its high-precision capturing ability of water level elevation and water flow instantaneous speed, the mechanism provides accurate and reliable data support for river comprehensive management scheme formulation, flood control and disaster reduction early warning system construction, and intelligent scheduling operation of hydroelectric power stations. Whether it is to protect the water ecological safety of the river basin or to promote the scientific optimization of water resources, and even to drive the scientific research innovation in the field of water conservancy, the water level and flow velocity measurement mechanism plays an irreplaceable cornerstone role and is an important technical equipment to support the high-quality development of modern water conservancy.

[0003] However, the existing water level and flow velocity detection technology has many drawbacks. At present, when detecting the water level and flow velocity of rivers and lakes, mainly rely on driving the detection instrument-carrying ship to move measurement, or fixedly install detection device at specified position, but the former is limited by water environment and weather conditions, the operation process is complicated, and it consumes manpower and material resources; the latter is fixedly installed, and it is difficult to flexibly adapt to different monitoring needs. In addition, the existing water level detection equipment mostly adopts floating type design, when the water surface appears waves, the float will fluctuate with the waves to produce large measurement error, which seriously affects the detection efficiency and data accuracy, and cannot meet the high-precision and convenient hydrological monitoring needs, so it is urgent to break through these technical bottlenecks by a water level and flow velocity measurement mechanism. SUMMARY

[0004] (I) Technical problems to be solved

[0005] In view of the above problems, the present application provides a water level and flow velocity measurement mechanism to solve the problems in the background.

[0006] (II) Technical scheme

[0007] In order to achieve the above object, the present application is realized by the following technical scheme: a water level and flow velocity measuring mechanism, comprising a detection bucket, the upper side of the inner side wall of the detection bucket is provided with a first coil, the lower side of the inner side wall of the detection bucket is provided with a second coil, the inner side wall of the detection bucket is provided with an anti-magnetic shield in the middle of the first coil, the inner side wall of the anti-magnetic shield is provided with a general control circuit board, the rear side of the inner side wall of the detection bucket is provided with an electrode probe, the inner side wall of the detection bucket is fixedly connected with a sound wave transmitter, the inner side wall of the detection bucket is fixedly connected with a sound wave receiver, the lower surface of the detection bucket is fixedly connected with a first flow stabilizing wing plate, the inner side wall of the first flow stabilizing wing plate is provided with an ultrasonic water level gauge probe, the outer surface of the detection bucket is provided with a driving module, the left end of the detection bucket is fixedly connected with a tail wing plate through a connecting rod, and the upper surface of the detection bucket is fixedly connected with an anti-interference module through a connecting seat.

[0008] Preferably, the driving module comprises a third flow stabilizing wing plate, the inner side wall of the third flow stabilizing wing plate is fixedly connected with a storage battery, the right side of the inside of the third flow stabilizing wing plate is provided with a camera whose end penetrates through the outer surface of the third flow stabilizing wing plate, the outer surface of the third flow stabilizing wing plate is fixedly connected with an infrared induction switch, the left side of the inside of the third flow stabilizing wing plate is provided with a motor, and one end of the output shaft of the motor is fixedly connected with a double-blade impeller.

[0009] Preferably, the anti-interference module comprises a support rod, a sliding groove is formed in the middle of the support rod, a ball head sliding block is slidably connected to the outer surface of the support rod, a hydraulic shock absorber is fixedly connected to the inner bottom wall of the sliding groove, one end of the telescopic rod of the hydraulic shock absorber is fixedly connected with a spring, a return spring is fixedly connected to the outer surface of the ball head sliding block, a ball head seat is movably connected to the outer surface of the ball head sliding block, a first float is fixedly connected to the outer surface of the ball head seat, a drainage groove is formed in the upper surface of the first float, a second float is fixedly connected to the outer surface of the first float through a connecting rod, and a handle is arranged on the upper end of the support rod.

[0010] Preferably, the two ends of the first coil and one end of the second coil are connected end to end, and the other end of each is electrically connected to the general control circuit board through a wire, the electrode probe is provided with two and is symmetrically arranged front and back, the two electrode probes are electrically connected to the general control circuit board through wires, and the sound wave transmitter and the sound wave receiver are electrically connected to the general control circuit board through wires.

[0011] Preferably, the outer surface of the first flow stabilizing wing plate is fixedly connected with a second flow stabilizing wing plate, the second flow stabilizing wing plate is provided with two and is symmetrically arranged, and the cross section of the second flow stabilizing wing plate is a symmetric airfoil type.

[0012] Preferably, the material of the double-blade impeller is iron, an electromagnet is arranged on the outer side of the motor at the inner side wall of the third flow stabilizing wing, the magnetic end of the electromagnet is arranged at the outer side of the double-blade impeller, the inner side wall of the third flow stabilizing wing is provided with a control module, the camera, the infrared induction switch, the motor and the electromagnet are electrically connected with the control module through wires, the control module is electrically connected with the battery through wires, and the infrared induction switch is provided with two and symmetrically arranged.

[0013] Preferably, the hydraulic shock absorber, the spring and the reset spring are provided with two and symmetrically arranged, the middle part of the ball head sliding block is slidably connected with the inner side wall of the sliding groove, one end of the spring is abutted to the upper surface of the ball head sliding block, and one end of the reset spring is fixedly connected with the outer surface of the supporting rod through the fixing plate.

[0014] Preferably, the inner side wall of the handle is fixedly connected with a wireless transmission antenna, the inner side wall of the handle is provided with wires electrically connected with the wireless transmission antenna, the lower end of the wires penetrates through the inside of the supporting rod and is electrically connected with the general control circuit board, and the control module is electrically connected with the general control circuit board through wires.

[0015] (Three) beneficial effects

[0016] Compared with the prior art, the water level and flow velocity measuring mechanism has the following beneficial effects:

[0017] 1. The water level and flow velocity measuring mechanism is provided with the water level and flow velocity measuring mechanism, which can detect the water level and flow velocity of the water body. The first coil, the second coil and the electrode probe are cooperatively arranged. According to Faraday's law, when the water flows through the inside of the detection barrel, the magnetic induction lines are cut, and the induced electromotive force is generated. At this time, the two electrode probes detect the size of the induced electromotive force, and the water flow velocity is calculated according to Faraday's formula. The sound wave transmitter and the sound wave receiver are arranged, and the sound wave transmitter and the sound wave receiver form the effect of the acoustic Doppler flow meter. The water in the detection barrel is detected again to improve the detection accuracy. The ultrasonic water level probe is arranged to emit ultrasonic waves downwardly at the lower part of the detection barrel. According to the time interval of the received ultrasonic waves, the water level height can be calculated, so as to achieve the purpose of detecting the water flow velocity and the water level.

[0018] 2. This water level and flow velocity measuring mechanism, through the setting of an anti-interference module, enables the water level and flow velocity measuring mechanism to reduce the impact of water surface waves on the accuracy of water level detection. Through the coordinated arrangement of support rod, ball head slider, hydraulic shock absorber, spring and return spring, during use, when there are waves on the water surface, the ball head slider can slide on the outer surface of the support rod, and the sliding force can be weakened by the hydraulic shock absorber and spring, thereby reducing the impact of waves on the accuracy of water level detection.

[0019] 3. This water level and flow velocity measuring mechanism, through the setting of the drive module, enables the water level and flow velocity measuring mechanism to move freely in the water body and reduce the effect of impurities entangled on the double-blade impeller. Through the cooperation of the third flow stabilizer plate, motor and double-blade impeller, the entire device can be driven to move in the water body during use. When impurities pass over the upper and lower sides of the third flow stabilizer plate during the movement, they are detected by the infrared sensor switch, thereby stopping the operation of the double-blade impeller and keeping the double-blade impeller in a horizontal state with the third flow stabilizer plate to prevent impurities from entangled on the double-blade impeller. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the three-dimensional cross-section of the detection barrel of the present invention;

[0023] Figure 4 This is a structural schematic diagram of the front cross-section of the detection barrel of the present invention;

[0024] Figure 5 This is a schematic diagram of the top cross-section of the third flow stabilizer of the present invention;

[0025] Figure 6 This is a three-dimensional structural diagram of the anti-interference module of the present invention;

[0026] Figure 7 For the present invention Figure 6 Schematic diagram of the structure at point A;

[0027] Figure 8 For the present invention Figure 6 Schematic diagram of the structure at point B;

[0028] Figure 9 This is a three-dimensional structural diagram of the first and second floats of the present invention.

[0029] In the figure: 1, detection barrel; 2, first coil; 3, second coil; 4, anti-magnetic shield; 5, general control circuit board; 6, electrode probe; 7, sound wave emitter; 8, sound wave receiver; 9, first steady flow wing plate; 10, ultrasonic water level meter probe; 11, second steady flow wing plate; 12, third steady flow wing plate; 13, battery; 14, camera; 15, infrared induction switch; 16, motor; 17, double-blade impeller; 18, electromagnet; 19, control module; 20, connecting rod; 21, tail wing plate; 22, connecting seat; 23, support rod; 24, sliding groove; 25, ball head sliding block; 26, hydraulic shock absorber; 27, spring; 28, return spring; 29, ball head seat; 30, first float; 31, drainage groove; 32, second float; 33, handle; 34, wire; 35, wireless transmission antenna. DETAILED DESCRIPTION

[0030] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as that generally understood by those skilled in the art to which the present application belongs.

[0032] In the present application, unless otherwise specified, the orientation such as "up, down" is generally directed to the direction shown in the drawings, or is directed to the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is generally directed to the left and right shown in the drawings; "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the present application.

[0033] Please refer to Figures 1-5A water level and flow velocity measuring mechanism includes a detection tank 1. A first coil 2 is disposed on the upper side of the inner wall of the detection tank 1, and a second coil 3 is disposed on the lower side of the inner wall of the detection tank 1. An antimagnetic shield 4 is disposed on the inner wall of the detection tank 1 at the middle of the first coil 2. A main control circuit board 5 is disposed on the inner wall of the antimagnetic shield 4. An electrode probe 6 is disposed on the rear side of the inner wall of the detection tank 1. A sound wave transmitter 7 and a sound wave receiver 8 are fixedly connected to the inner wall of the detection tank 1. The two ends of the first coil 2 and one end of the second coil 3 are connected end to end, and the other ends are electrically connected to the main control circuit board 5 through wires 34. Two electrode probes 6 are disposed and symmetrically arranged. Electrode probes 6 are electrically connected to the main control circuit board 5 via wires 34. Acoustic wave transmitters 7 and acoustic wave receivers 8 are electrically connected to the main control circuit board 5 via wires 34. A first flow stabilizing wing plate 9 is fixedly connected to the lower surface of the detection barrel 1. An ultrasonic water level sensor probe 10 is provided on the inner side wall of the first flow stabilizing wing plate 9. A second flow stabilizing wing plate 11 is fixedly connected to the outer surface of the first flow stabilizing wing plate 9. There are two second flow stabilizing wing plates 11, which are symmetrically arranged. The cross-section of the second flow stabilizing wing plate 11 is a symmetrical airfoil. A drive module is provided on the outer surface of the detection barrel 1. A tail wing plate 21 is fixedly connected to the left end of the detection barrel 1 via a connecting rod 20. An anti-interference module is fixedly connected to the upper surface of the detection barrel 1 via a connecting seat 22.

[0034] Specifically, the first coil 2 and the second coil 3 on the inner wall of the detection tank 1 are connected to the main control circuit board 5 via wire 34 to form a magnetic field generating device; electrode probes 6 are symmetrically arranged on the rear side of the detection tank 1; the acoustic transmitter 7 and receiver are fixed to the inner wall of the detection tank 1; the ultrasonic water level gauge probe 10 is installed on the lower side inside the first flow stabilizing vane 9; the second flow stabilizing vane 11 is symmetrically fixed to the outer surface of the first flow stabilizing vane 9; the main control circuit board 5 drives the first coil 2 and the second coil 3 to generate a uniform magnetic field perpendicular to the water flow direction; when the water flows through the detection tank 1, it cuts the magnetic field lines; the electrode probes 6 detect the induced electromotive force; and the flow velocity is calculated according to Faraday's law of electromagnetic induction (formula: v = B × LE ,in E It is the electromotive force. B Magnetic flux density L (coil spacing), after the initial test, the acoustic transmitter 7 emits ultrasonic waves into the water flow. After being reflected by particles in the water, the ultrasonic waves are captured by the receiver. The flow velocity is calculated a second time using the Doppler frequency shift principle. The data from both mechanisms are output separately and then the average value is calculated. The ultrasonic level gauge probe 10 emits ultrasonic waves downwards, and the echo time is used to calculate the average value. t Calculate water level height (formula: h = v × t / 2, vThe symmetrical airfoil structure of the second steady flow wing plate 11 reduces water flow disturbance and ensures stable measurement data.

[0035] Please refer to Figures 1-2 and Figures 6-9 The anti-interference module comprises a support rod 23, a sliding groove 24 is formed in the middle of the support rod 23, a ball head sliding block 25 is slidably connected to the outer surface of the support rod 23, a hydraulic shock absorber 26 is fixedly connected to the inner bottom wall of the sliding groove 24, one end of the telescopic rod of the hydraulic shock absorber 26 is fixedly connected to a spring 27, the outer surface of the ball head sliding block 25 is fixedly connected to a return spring 28, the hydraulic shock absorber 26, the spring 27 and the return spring 28 are both provided with two and are symmetrically arranged, the middle of the ball head sliding block 25 is slidably connected to the inner side wall of the sliding groove 24, one end of the spring 27 abuts against the upper surface of the ball head sliding block 25, one end of the return spring 28 is fixedly connected to the outer surface of the support rod 23 through a fixed plate, the outer surface of the ball head sliding block 25 is movably connected to a ball head seat 29, the outer surface of the ball head seat 29 is fixedly connected to a first float 30, a drainage groove 31 is formed in the upper surface of the first float 30, the outer surface of the first float 30 is fixedly connected to a second float 32 through a connecting rod 20, the upper end of the support rod 23 is provided with a handle 33, the inner side wall of the handle 33 is fixedly connected to a wireless transmission antenna 35, the inner side wall of the handle 33 is provided with a wire 34 which is electrically connected to the wireless transmission antenna 35, the lower end of the wire 34 penetrates through the inside of the support rod 23 and is electrically connected to a master control circuit board 5, and the control module 19 is electrically connected to the master control circuit board 5 through the wire 34.

[0036] Specifically, the support rod 23 of the anti-interference module is fixed to the upper surface of the detection barrel 1 through the connecting seat 22, the hydraulic shock absorber 26 and the spring 27 in the sliding groove 24 abut against the ball head sliding block 25, the return spring 28 connects the sliding block and the support rod 23, the ball head seat 29 movably connects the first float 30 and the second float 32, the drainage groove 31 is formed in the upper surface of the first float 30, when the water surface is impacted by waves, the first float 30 and the second float 32 drive the ball head sliding block 25 to slide up and down on the outer surface of the support rod 23 and in the sliding groove 24, the hydraulic shock absorber 26 absorbs the impact energy, the spring 27 transmits the kinetic energy to each other, the return spring 28 maintains the central position of the sliding block, the ball head seat 29 allows the floats to tilt within a certain range, ensures that the detection barrel 1 remains in a vertical state, the drainage groove 31 timely drains the water on the upper surface of the floats, avoids additional load, and the structure can weaken the wave interference, so that the water level measurement error is smaller.

[0037] Please refer to Figure 1 , Figure 2 and Figure 5The driving module comprises a third steady flow wing plate 12, the inner side wall of the third steady flow wing plate 12 is fixedly connected with a storage battery 13, the right side of the inside of the third steady flow wing plate 12 is provided with a camera 14 penetrating through the outer surface of the third steady flow wing plate 12, the outer surface of the third steady flow wing plate 12 is fixedly connected with an infrared induction switch 15, the left side of the inside of the third steady flow wing plate 12 is provided with a motor 16, one end of the output shaft of the motor 16 is fixedly connected with a double-blade impeller 17, the material of the double-blade impeller 17 is iron, the inner side wall of the third steady flow wing plate 12 located on the outside of the motor 16 is provided with an electromagnet 18, the magnetic end of the electromagnet 18 is located on the outside of the double-blade impeller 17, the inner side wall of the third steady flow wing plate 12 is provided with a control module 19, the camera 14, the infrared induction switch 15, the motor 16 and the electromagnet 18 are electrically connected with the control module 19 through wires 34, the control module 19 is electrically connected with the storage battery 13 through wires 34, and the infrared induction switch 15 is provided with two and symmetrically arranged upwards and downwards.

[0038] Specifically, in the third steady flow wing plate 12 of the driving module, the motor 16 drives the double-blade impeller 17, the electromagnet 18 is arranged on the outside of the impeller, the infrared induction switch 15 is symmetrically mounted on the outer surface of the third steady flow wing plate 12, the control module 19 coordinates the work of each component, the storage battery 13 provides power, when the infrared induction switch 15 monitors impurities within a certain range, the control module 19 cuts off the power supply of the motor 16, and simultaneously activates the electromagnet 18 to adsorb the double-blade impeller 17 to a horizontal position, so that the blade is parallel to the water flow direction, the risk of winding is reduced, after a certain period of time, the electromagnet 18 loses magnetism, the motor 16 resumes operation, and the ferromagnetic material of the double-blade impeller 17 ensures that the electromagnet 18 responds quickly, so that the anti-winding efficiency of the impeller is effectively improved,

[0039] In summary, the overall device in use: handheld handle 33 into the designated location of the device in the river, then use the smart device remote control device running, wireless transmission antenna 35 set in the handle 33 inside, reduce the interference of signal transmission, the first float 30 and the second float 32 work when the detection barrel 1 is kept below the water surface, by controlling the operation of the two motors 16 drive two double-impeller 17 rotation, thus pushing the device to move to one end of the detection barrel 1, move to the designated location after detection can be, detection, the total control circuit board 5 control the first coil 2 and the second coil 3 work, generate magnetic induction lines in the detection barrel 1, while the water flowing through the detection barrel 1 inside will cut the magnetic induction lines movement, generate induced electromotive force, the two electrode probes 6 at this time the induced electromotive force detection, then according to Faraday's law of electromagnetic induction, the flow rate of water can be calculated, the sound wave transmitter 7 and the sound wave receiver 8 work, the first coil 2, the second coil 3 and the electrode probe 6 stop working, the sound wave transmitter 7 emits ultrasonic waves to the detection barrel 1, which is captured by the sound wave receiver 8, and the time interval is analyzed, and then the size of the cross section of the detection barrel 1 is calculated to calculate the water flow rate in the time period, thus calculating the water flow rate, finally the water flow rate is transmitted to the smart terminal through the wireless transmission antenna 35, the two detection methods are operated alternately to avoid mutual interference, when the device moves to the designated location, the ultrasonic level gauge probe 10 can emit ultrasonic waves to the lower part of the device, when the ultrasonic level gauge probe 10 receives the ultrasonic waves again, the water level can be calculated according to the interval, the data will also be transmitted to the smart device remote terminal through the wireless transmission antenna 35, during the journey, the camera 14 captures the picture in front of the device, which facilitates the improvement of the control effect, when the water surface produces waves, the first float 30 and the detection barrel 1 will slide relatively, and the ultrasonic level gauge probe 10 and the third flow stabilizing wing 12 increase the resistance of the device in the vertical direction, when the waves impact the first float 30 and the second float 32, the detection barrel 1 tends to remain in the original position in the water body, which makes the ball head slider 25 slide up and down on the outer surface of the support rod 23, and the spring 27 is squeezed in this direction, the spring 27 transmits the force to the hydraulic shock absorber 26, which can weaken the impact force, the two groups of hydraulic shock absorbers 26 and springs 27 can form a state of pulling and pushing, which can better weaken the wave impact force, the reset spring 28 drives the ball head slider 25 to the original position, and the cooperation of the ball head slider 25 and the ball head seat 29 enables the first float 30 to be inclined at multiple angles within a specified range, which effectively improves the anti-wave interference performance and makes the measurement more accurate, during the movement of the device through the driving device, when the impurities in the water pass through a certain range above and below the third flow stabilizing wing 12, the infrared induction switch 15 can detect the approach of impurities, when impurities approach, the motor 16 stops working,The electromagnet 18 starts to work, and its magnetic force end generates magnetic force on one side of the double-blade impeller 17, attracting the double-blade impeller 17, so as to prevent the double-blade impeller 17 from continuing to rotate while keeping the blades of the double-blade impeller 17 horizontal to the third steady flow wing plate 12, effectively avoiding that impurities in water are wound on the double-blade impeller 17 to form interference to the movement of the device.

[0040] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut cooperation connection, bolt or screw connection or other known connection mode, which will not be described one by one. In the above, whenever it involves fixed connection, welding is preferred. Although the embodiments of the application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the application, and the scope of the application is defined by the appended claims and their equivalents.

Claims

1. A water level and flow rate measuring mechanism comprising a detection bucket (1), characterized in that: The upper side of the inner side wall of the detection barrel (1) is provided with a first coil (2), the lower side of the inner side wall of the detection barrel (1) is provided with a second coil (3), the inner side wall of the detection barrel (1) is provided with an anti-magnetic shield (4) at the middle of the first coil (2), the inner side wall of the anti-magnetic shield (4) is provided with a general control circuit board (5), the rear side of the inner side wall of the detection barrel (1) is provided with an electrode probe (6), the inner side wall of the detection barrel (1) is fixedly connected with a sound wave transmitter (7), the inner side wall of the detection barrel (1) is fixedly connected with a sound wave receiver (8), the lower surface of the detection barrel (1) is fixedly connected with a first flow stabilizing fin (9), the inner side wall of the first flow stabilizing fin (9) is provided with an ultrasonic water level gauge probe (10), the outer surface of the detection barrel (1) is provided with a driving module, the left end of the detection barrel (1) is fixedly connected with a tail fin (21) through a connecting rod (20), and the upper surface of the detection barrel (1) is fixedly connected with an anti-interference module through a connecting seat (22); The driving module comprises a third flow stabilizing fin (12), the inner side wall of the third flow stabilizing fin (12) is fixedly connected with a storage battery (13), the outer surface of the third flow stabilizing fin (12) is fixedly connected with an infrared induction switch (15), and the infrared induction switch (15) is provided with two and symmetrically arranged; the left side of the inside of the third flow stabilizing fin (12) is provided with a motor (16), one end of the output shaft of the motor (16) is fixedly connected with a double-blade impeller (17), and the material of the double-blade impeller (17) is iron; the inner side wall of the third flow stabilizing fin (12) is provided with an electromagnet (18) outside the motor (16), and the magnetic end of the electromagnet (18) is arranged outside the double-blade impeller (17); the inner side wall of the third flow stabilizing fin (12) is provided with a control module (19), the control module (19) is electrically connected with the storage battery (13) through wires, when the infrared induction switch (15) detects impurities within a certain range, the control module (19) cuts off the power supply of the motor (16), and simultaneously activates the electromagnet (18) to adsorb the double-blade impeller (17) to a horizontal position, so that the blades are parallel to the water flow direction, the risk of winding is reduced, and the infrared induction switch (15), the motor (16) and the electromagnet (18) are electrically connected with the control module (19) through wires.

2. The water level and flow rate measuring mechanism according to claim 1, characterized by: The anti-interference module includes a support rod (23), a sliding groove (24) is formed in the middle of the support rod (23), a ball head sliding block (25) is slidably connected to the outer surface of the support rod (23), a hydraulic shock absorber (26) is fixedly connected to the inner bottom wall of the sliding groove (24), one end of the telescopic rod of the hydraulic shock absorber (26) is fixedly connected with a spring (27), a return spring (28) is fixedly connected to the outer surface of the ball head sliding block (25), a ball head seat (29) is movably connected to the outer surface of the ball head sliding block (25), a first float (30) is fixedly connected to the outer surface of the ball head seat (29), a drainage groove (31) is formed in the upper surface of the first float (30), a second float (32) is fixedly connected to the outer surface of the first float (30) through a connecting rod (20), and a handle (33) is arranged at the upper end of the support rod (23).

3. The water level and flow rate measuring mechanism according to claim 1, characterized by: The two ends of the first coil (2) and one end of the second coil (3) are connected end to end, and the other end is electrically connected to the total control circuit board (5) through a wire, the electrode probe (6) is provided with two and is symmetrically arranged, the two electrode probes (6) are electrically connected to the total control circuit board (5) through wires, and the sound wave transmitter (7) and the sound wave receiver (8) are electrically connected to the total control circuit board (5) through wires.

4. The water level and flow rate measuring mechanism according to claim 1, characterized by: The outer surface of the first flow stabilizing wing plate (9) is fixedly connected with the second flow stabilizing wing plate (11), the second flow stabilizing wing plate (11) is provided with two and is symmetrically arranged, the cross section of the second flow stabilizing wing plate (11) is a symmetric airfoil, the inside of the third flow stabilizing wing plate (12) is provided with a camera (14) penetrating through the outer surface of the third flow stabilizing wing plate (12) on the right side, and the camera (14) is electrically connected to the control module (19) through a wire.

5. The water level and flow rate measuring mechanism according to claim 2, characterized by: The hydraulic shock absorber (26), the spring (27) and the return spring (28) are provided with two and are symmetrically arranged, the middle of the ball head sliding block (25) is slidably connected with the inner side wall of the sliding groove (24), one end of the spring (27) abuts against the upper surface of the ball head sliding block (25), and one end of the return spring (28) is fixedly connected with the outer surface of the support rod (23) through a fixed plate.

6. The water level and flow rate measuring mechanism according to claim 2, characterized by: The inner side wall of the handle (33) is fixedly connected with a wireless transmission antenna (35), the inner side wall of the handle (33) is provided with a wire electrically connected with the wireless transmission antenna (35), the lower end of the wire penetrates through the inside of the support rod (23) and is electrically connected with the total control circuit board (5), and the control module (19) and the total control circuit board (5) are electrically connected through a wire.

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