A river flood prevention early warning monitoring device

Abstract

The present invention belongs to the technical field of early warning monitoring devices, and in particular relates to a river flood prevention early warning monitoring device, comprising a mounting plate, the upper side wall of the mounting plate is fixedly connected to a mounting frame, the upper end of the mounting frame is fixedly connected to a cross bar, the lower side wall of the cross bar is connected to an ultrasonic level meter and a collection camera, and the upper side wall of the cross bar is fixedly connected to a controller. When foam appears in the river channel and affects the measurement accuracy of the ultrasonic level meter inside the monitoring device, the present invention can automatically spray an appropriate amount of defoaming agent to the designated area and block the foam left upstream, thereby ensuring the measurement accuracy of the ultrasonic level meter. When the mounting frame of the monitoring device rusts, the rusted area on the surface of the mounting frame can be automatically polished, and then paint can be sprayed on the polished area, thereby ensuring the corrosion resistance of the mounting frame, avoiding the problem of aggravated corrosion of the mounting frame and lack of protection for the internal components and circuits of the mounting frame.

Description

Technical Field

[0001] The present invention belongs to the technical field of early warning monitoring devices, and in particular relates to a river flood prevention early warning monitoring device. Background Art

[0002] Floods are a natural phenomenon caused by natural factors such as heavy rain, rapid ice and snow melting, and storm surges, resulting in a rapid increase in the amount of water in rivers and lakes, or a rapid rise in water levels. This natural phenomenon often causes serious disasters, especially flooding in rivers close to residential areas, which has a great impact on people's lives and property. Therefore, it is necessary to install monitoring devices next to the river to monitor the water level in the river. For example, a river flood prevention monitoring and early warning device is proposed in patent publication number CN218547668U.

[0003] Wastewater and domestic sewage that do not meet treatment standards in some factories will be transported into the river through the drainage pipes, causing foam to appear in the river. The monitoring device usually uses an ultrasonic level meter to monitor the water level in the river. When there is a lot of foam in the river, the presence of foam will cause the ultrasonic wave to scatter, refract and reflect during the propagation process, resulting in some ultrasonic signals unable to accurately reach the liquid level surface and return to the sensor. This will cause the liquid level data measured by the ultrasonic level meter to deviate and reduce the accuracy. At the same time, due to the instability of foam, its thickness, density and distribution state will change with time and water flow conditions, which will cause the propagation path and attenuation of ultrasonic waves in the foam to change continuously, making the signal strength and time delay received by the sensor unstable. The level meter may have large reading fluctuations and cannot provide accurate and stable liquid level data, which brings difficulties to subsequent monitoring and control work.

[0004] Therefore, a river flood prevention early warning monitoring device is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a river flood prevention early warning monitoring device in response to the above problems.

[0006] To achieve the above-mentioned object, the present invention adopts the following technical solution: a river flood prevention early warning monitoring device, comprising a mounting plate, the upper side wall of the mounting plate is fixedly connected to a mounting frame, the upper end of the mounting frame is fixedly connected to a cross bar, the lower side wall of the cross bar is connected to an ultrasonic level meter and a collection camera, the upper side wall of the cross bar is fixedly connected to a controller, and further comprising:

[0007] A lead screw linear module is arranged on the upper side wall of the mounting plate and is located behind the mounting frame. The movable end of the lead screw linear module is fixedly connected to a curved rod, and the lower end of the curved rod is connected to a protective frame through a sensing component.

[0008] An induction defoaming component is provided on the left side wall of the protective frame and is used for spraying a defoaming agent of appropriate concentration;

[0009] The polishing assembly is arranged on the outer side of the mounting frame and is used for cleaning the rusted area on the surface of the mounting frame.

[0010] The top end face of said sliding arm is fixedly provided with a toothed connecting strip which is cooperatively connected with said toothed connecting strip.

[0011] Preferably, the induction defoaming component includes a guide cylinder fixedly connected to the left side of the protective frame, a guide block is slidably provided in the guide cylinder, the lower side wall of the guide block is fixedly connected to a lifting rod, the lifting rod is an L-shaped structure, the lower end of the lifting rod extends out of the guide cylinder and is fixedly connected to a floating block, the upper side wall of the floating block is fixedly connected to two vertical plates, the front side wall of the vertical plate located at the rear side is fixedly connected to a plurality of optical signal generators, and the rear side wall of the vertical plate located at the front side is fixedly connected to a plurality of optical signal connectors that match the optical signal generators. The optical signal receiver is electrically connected to the controller, the upper side wall of the mounting plate is fixedly connected to a storage box, the upper side wall of the storage box is fixedly connected to a delivery pump, the feed end of the delivery pump is connected to the storage box, the discharge end of the delivery pump is fixedly connected to a delivery hose, the upper end of the delivery hose is connected to a bent rod, the bent rod is a hollow structure, the inner wall of the protective frame is fixedly connected to a defoaming pipe, the inner wall of the defoaming pipe is fixedly connected to a plurality of defoaming nozzles, and the defoaming pipe and the bent rod are fixedly connected to the same discharge hose.

[0012] Preferably, the polishing assembly includes a polishing frame, which is fixedly connected to the movable end of the bracket and the screw linear module, and the upper side wall of the polishing frame is fixedly connected to multiple visual sensors, and the multiple visual sensors are electrically connected to the controller, and the four side walls of the polishing frame are fixedly connected to polishing electric push rods, and the movable end of the polishing electric push rod passes through the polishing frame and is connected to the polishing mechanism, and the lower side wall of the polishing frame is connected to the spraying assembly.

[0013] Preferably, the spray assembly includes a spray box fixedly connected to the lower side wall of the polishing frame, the spray box is a frame-type structure, the inner wall of the spray box is fixedly connected with a spray pipe, the spray pipe is a frame-type structure, the spray pipe is fixedly connected to the side wall close to the mounting frame with multiple atomizing nozzles, the rear side wall of the spray box is fixedly connected with a spray pump, the feed end of the spray pump is connected to the spray box, and the discharge end of the spray pump is connected to the spray pipe.

[0014] Preferably, the upper side wall of the cross bar is fixedly connected to a photovoltaic panel via a bracket, the upper side wall of the mounting plate is fixedly connected to an energy storage power supply, and the photovoltaic panel and the energy storage power supply are electrically connected.

[0015] Preferably, a rain sensor is fixedly connected to the upper side wall of the cross bar, and the rain sensor is electrically connected to the controller.

[0016] Preferably, the grinding mechanism includes a grinding frame, the movable end of the grinding electric push rod is connected to the grinding frame through a pressure sensor, the inner wall of the grinding frame is rotatably connected to two driving rollers, the outer sleeves of the two driving rollers are provided with the same grinding belt, and one of the driving rollers is transmission-connected to the output end of the grinding motor below the grinding frame.

[0017] Compared with existing technologies, the advantages of a river flood prevention early warning monitoring device are:

[0018] Through the induction defoaming component, when foam appears in the river channel and affects the measurement accuracy of the ultrasonic level meter inside the monitoring device, an appropriate amount of defoaming agent can be automatically sprayed to the designated area, and the foam left upstream can be blocked, thereby ensuring the measurement accuracy of the ultrasonic level meter.

[0019] By setting up the sensing component and protective frame, while using the protective frame to block the upstream foam, other impurities floating on the river surface can also be blocked, preventing other impurities from affecting the measurement accuracy of the ultrasonic level meter. In addition, when larger debris hits the protective frame, the protective frame can be rotated in the direction of the debris impact, avoiding the problem of the protective frame being deformed by the impact of larger debris.

[0020] Through the provided grinding components and spraying components, when the mounting frame of the monitoring device becomes rusted, the rusted area on the surface of the mounting frame can be automatically polished, and then paint can be sprayed on the polished area, thereby ensuring the corrosion resistance of the mounting frame, avoiding the problem of aggravated corrosion of the mounting frame and lack of protection for the internal components and circuits of the mounting frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of a river flood prevention early warning monitoring device provided by the present invention;

[0022] Figure 2This is a structural diagram of a sensing component in a river flood prevention early warning monitoring device provided by the present invention;

[0023] Figure 3 This is a schematic diagram of the positional relationship between the protection frame and the defoaming pipe in a river flood prevention early warning monitoring device provided by the present invention;

[0024] Figure 4 This is a structural diagram of an induction defoaming component in a river flood prevention early warning monitoring device provided by the present invention;

[0025] Figure 5 This is a schematic diagram of the positional relationship between a grinding frame and a spray box in a river flood prevention early warning monitoring device provided by the present invention;

[0026] Figure 6 This is a top view of a grinding component in a river flood prevention early warning monitoring device provided by the present invention;

[0027] Figure 7 This is a top view of a spraying assembly in a river flood prevention early warning monitoring device provided by the present invention;

[0028] Figure 8 It is a structural schematic diagram of a grinding mechanism in a river flood prevention early warning monitoring device provided by the present invention.

[0029] In the figure: 1 mounting plate, 2 mounting frame, 3 crossbar, 4 ultrasonic level meter, 5 acquisition camera, 6 controller, 7 screw linear module, 8 bending rod, 9 protection frame, 10 sensing component, 101 sensing box, 102 moving block, 11 trigger switch, 12 moving rod, 13 fixing frame, 14 rotating rod, 15 rotating plate, 16 supporting frame, 17 horizontal electric push rod, 18 moving plate, 19 coil spring, 20 limit pin, 21 sensing defoaming component, 211 guide cylinder, 212 guide block, 22 lifting rod, 23 floating block, 24 vertical board, 25 optical signal generator, 26 optical signal receiver, 27 storage box, 28 delivery pump, 29 delivery hose, 30 defoaming pipe, 31 defoaming nozzle, 32 discharge hose, 33 grinding assembly, 331 grinding frame, 332 visual sensor, 34 grinding electric push rod, 35 spraying assembly, 351 spray box, 352 spraying pipe, 36 atomizing nozzle, 37 spraying pump, 38 photovoltaic panel, 39 energy storage power supply, 40 rain sensor, 41 grinding mechanism, 411 grinding frame, 412 driving roller, 42 grinding belt. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] like Figures 1-8As shown, a river flood prevention early warning monitoring device includes a mounting plate 1, the upper side wall of the mounting plate 1 is fixedly connected to a mounting frame 2, the upper end of the mounting frame 2 is fixedly connected to a cross bar 3, the lower side wall of the cross bar 3 is connected to an ultrasonic liquid level meter 4 and a collection camera 5, the upper side wall of the cross bar 3 is fixedly connected to a controller 6, the upper side wall of the cross bar 3 is fixedly connected to a photovoltaic panel 38 through a bracket, the upper side wall of the mounting plate 1 is fixedly connected to an energy storage power supply 39, the photovoltaic panel 38 and the energy storage power supply 39 are electrically connected, and can use light energy to power the energy storage power supply 39, thereby improving the environmental protection capability of the device, the upper side wall of the cross bar 3 is fixedly connected to a rain sensor 40, the rain sensor 40 and the controller 6 are electrically connected and can detect the amount of rainfall, and further includes:

[0032] The screw linear module 7 is arranged on the upper side wall of the mounting plate 1 and is located behind the mounting frame 2. The movable end of the screw linear module 7 is fixedly connected to the bending rod 8. The lower end of the bending rod 8 is connected to the protective frame 9 through the sensing component 10. The sensing component 10 includes a sensing box 101 fixedly connected to the lower end of the bending rod 8. The front inner wall of the sensing box 101 is connected to a moving block 102 through a spring. The lower inner wall of the sensing box 101 is fixedly connected to a trigger switch 11. The trigger switch 11 is electrically connected to the controller 6. The lower side wall of the moving block 102 is fixedly connected to a moving rod 12. The lower end of the moving rod 12 is fixedly connected to a fixed frame 13. The inner wall of the fixed frame 13 is rotatably connected to a rotating rod 14. The fixed frame 13 A coil spring 19 is provided between the rotating rod 14 and the rotating rod 14. The rod wall fixing sleeve of the rotating rod 14 is provided with a rotating plate 15. The lower end of the rotating plate 15 is fixedly connected to the upper side wall of the protective frame 9. The left side wall of the fixing frame 13 is fixedly connected to the supporting frame 16. The left side wall of the supporting frame 16 is fixedly connected to the transverse electric push rod 17. The moving end of the transverse electric push rod 17 passes through the supporting frame 16 and is fixedly connected to the moving plate 18. The right side wall of the moving plate 18 is fixedly connected to two limit pins 20. The side walls of the fixing frame 13 and the rotating plate 15 are provided with limit holes that match the limit pins 20. When the protective frame 9 is impacted by larger debris, it can be rotated to a certain angle to avoid the problem of deformation of the protective frame 9 caused by the large impact force;

[0033] The induction defoaming component 21 is arranged on the left side wall of the protective frame 9 and is used to spray a defoaming agent of appropriate concentration. The induction defoaming component 21 includes a guide cylinder 211 fixedly connected to the left side of the protective frame 9. A guide block 212 is slidingly provided in the guide cylinder 211. The lower side wall of the guide block 212 is fixedly connected to a lifting rod 22. The lifting rod 22 is an L-shaped structure. The lower end of the lifting rod 22 extends out of the guide cylinder 211 and is fixedly connected to a floating block 23. The upper side wall of the floating block 23 is fixedly connected to two vertical plates 24. The front side wall of the rear vertical plate 24 is fixedly connected to a plurality of optical signal generators 25. The rear side wall of the front vertical plate 24 is fixedly connected to a plurality of optical signal generators 25. The optical signal receiver 26 matches each other, and the optical signal receiver 26 is electrically connected to the controller 6. The upper side wall of the mounting plate 1 is fixedly connected to a storage box 27, and the upper side wall of the storage box 27 is fixedly connected to a delivery pump 28. The feed end of the delivery pump 28 is connected to the storage box 27, and the discharge end of the delivery pump 28 is fixedly connected to a delivery hose 29. The upper end of the delivery hose 29 is connected to the curved rod 8. The curved rod 8 is a hollow structure. The inner wall of the protective frame 9 is fixedly connected to a defoaming pipe 30. The inner wall of the defoaming pipe 30 is fixedly connected to a plurality of defoaming nozzles 31. The defoaming pipe 30 and the curved rod 8 are fixedly connected to the same discharge hose 32, which can automatically spray an appropriate amount of defoaming agent according to the thickness of the foam;

[0034] The grinding assembly 33 is arranged on the outside of the mounting frame 2 and is used to clean the rusted area on the surface of the mounting frame 2. The grinding assembly 33 includes a grinding frame 331, which is fixedly connected to the movable end of the screw linear module 7 through a bracket. The upper side wall of the grinding frame 331 is fixedly connected with multiple visual sensors 332, and the multiple visual sensors 332 are electrically connected to the controller 6. The four side walls of the grinding frame 331 are fixedly connected with grinding electric push rods 34. The movable end of the grinding electric push rod 34 passes through the grinding frame 331 and is connected to the grinding mechanism 41. The grinding mechanism 41 includes a grinding frame 411. The movable end of the grinding electric push rod 34 is connected to the grinding frame 411 through a pressure sensor. The inner wall of the grinding frame 411 is rotatably connected to two drive rollers 412. The two drive rollers 412 The outer jacket is provided with the same polishing belt 42, one of which is a driving roller 412 and a transmission connection with the output end of the polishing motor below the polishing frame 411. The lower side wall of the polishing frame 331 is connected to a spraying assembly 35, which can polish the rusted area of the mounting frame 2. The spraying assembly 35 includes a spray box 351 fixedly connected to the lower side wall of the polishing frame 331. The spray box 351 is a frame-type structure. The inner wall of the spray box 351 is fixedly connected to a spray pipe 352. The spray pipe 352 is a frame-type structure. The spray pipe 352 is fixedly connected to the side wall of the mounting frame 2 with multiple atomizing nozzles 36. The rear side wall of the spray box 351 is fixedly connected to a spray pump 37. The feed end of the spray pump 37 is connected to the spray box 351, and the discharge end of the spray pump 37 is connected to the spray pipe 352, so that paint can be sprayed to the polishing area.

[0035] The operating principle of the present invention is now described as follows: the monitoring device is installed on one side of the river to be monitored, and the water level of the river is monitored by the ultrasonic level meter 4. When the monitoring finds that the water level in the river exceeds the warning water level, the ultrasonic level meter 4 will promptly inform the monitoring personnel through the wireless communication module inside the controller 6, and remind the surrounding personnel to evacuate to a higher place through the buzzer module inside the controller 6. When foam appears under the ultrasonic level meter 4 due to pollution or other reasons in the river, the foam will cause the ultrasonic wave emitted by the ultrasonic level meter 4 to scatter, refract and reflect during the propagation process, resulting in deviations in the measurement data. In addition, the foam changes continuously with the water flow, causing the ultrasonic level meter 4 to have large fluctuations in data. The ultrasonic level meter 4 will transmit the monitoring data to the controller 6.

[0036] When the controller 6 detects this situation, the controller 6 will control the screw linear module 7 to work, and the screw linear module 7 drives the protective frame 9 to move downward to the set position through the bending rod 8, and uses the protective frame 9 to block the foam flowing down from the upstream, and when the lower end of the protective frame 9 extends into the water surface, since the density of the floating block 23 is less than the density of the river water, and the density of the vertical plates 24 on both sides is greater than the density of the river water, the floating block 23 will float in the water under the action of buoyancy, and the distance between the lowest optical signal generator 25 and the optical signal receiver 26 and the water surface is 0.5 cm, and the density of the floating block 23 is greater than the foam. Therefore, the foam will be between the two vertical plates 24. Since the foam will send light to the optical signal generator 25, the light signal receiver 26 will be moved to the bottom of the water surface. The light signal emitted is blocked, refracted and reflected, so that the intensity of the light signal is weakened. When there is a lot of foam and thicker foam on the river surface, the light signal emitted by the optical signal generator 25 near the top will not be weakened. After the controller 6 detects this situation, it means that there is a lot of foam in the river channel. The controller 6 will control the delivery pump 28 to work for a longer time. The delivery pump 28 will deliver the defoaming agent stored in the storage tank 27 to the defoaming pipe 30 through the delivery hose 29, the bent rod 8 and the discharge hose 32, and spray it through the defoaming nozzle 31, so as to eliminate the foam inside the protective frame 9, and the upstream foam will be blocked by the protective frame 9, thereby ensuring that there is no foam below the ultrasonic level meter 4, thereby ensuring the measurement accuracy of the ultrasonic level meter 4;

[0037] When the protection frame 9 moves downward to the river surface, the debris on the river surface will hit the protection frame 9 under the action of the water flow. When the debris is heavy, the protection frame 9 will be subjected to a greater impact force. Under the action of the impact force, the protection frame 9 will drive the moving block 102 to move a longer distance in the induction box 101 through the rotating plate 15, the fixing frame 13, and the moving rod 12, so that the moving block 102 is squeezed to the trigger switch 11. The trigger switch 11 will immediately control the horizontal electric push rod 17 to work through the controller 6, and the horizontal electric push rod 17 will move through the moving plate 18 The two limit pins 20 are driven to separate from the rotating plate 15, releasing the limit of the rotating plate 15, so that the rotating plate 15 drives the protective frame 9 to rotate a certain angle along the rotating rod 14, so that heavier debris flows away from the bottom of the protective frame 9. After the heavier debris flows away, the rotating rod 14 will continue to rotate to a vertical state under the action of the coil spring 19, and continue to play the role of protection. In addition, the controller 6 will control the horizontal electric push rod 17 to work in the reverse direction after a delay of one minute, driving the limit pin 20 to insert into the limit hole on the surface of the rotating plate 15, thereby fixing the position of the rotating plate 15.

[0038] When the screw linear module 7 drives the bending rod 8 to move, the screw linear module 7 will also drive the grinding frame 331 and multiple visual sensors 332 to move on the surface of the mounting frame 2. When the visual sensor 332 detects a rusted area on the surface of the mounting frame 2 (by acquiring image information of the surface of the mounting frame 2, analyzing the image using the image processing algorithm of the controller 6, and identifying the color, texture and other features of the rusted area, the degree and range of the rust can be determined), the visual sensor 332 will control the screw linear module 7 through the controller 6 to drive the grinding mechanism 41 to move to the rusted area, and then the controller 6 will control the corresponding grinding electric push rod 34 and the grinding mechanism 41 to work, and the corresponding grinding electric push rod 34 will drive the grinding mechanism 41 to contact the rusted area, and then control The device 6 controls the operation of the grinding motor inside the grinding mechanism 41, and the grinding motor drives the driving roller 412 and the grinding belt 42 to rotate. The rusted area is grinded with the grinding belt 42 for five minutes. Then the controller 6 controls the screw linear module 7 to drive the spray assembly 35 to move upward to the grinding area, and move back and forth in a small range in the grinding area. Then the controller 6 controls the spray pump 37 and the corresponding atomizing nozzle 36 to work. The spray pump 37 transports the paint inside the spray box 351 to the spray pipe 352 and sprays it out through the corresponding atomizing nozzle 36. The grinding area can be painted to restore the anti-corrosion ability of the mounting frame 2. The controller 6 will also send this information to the receiving end through the wireless communication module to facilitate the operator to record it later and replenish the paint in the spray box 351.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A river flood prevention early warning monitoring device, comprising a mounting plate (1), wherein the upper side wall of the mounting plate (1) is fixedly connected to a mounting frame (2), the upper end of the mounting frame (2) is fixedly connected to a cross bar (3), the lower side wall of the cross bar (3) is connected to an ultrasonic level meter (4) and a collection camera (5), and the upper side wall of the cross bar (3) is fixedly connected to a controller (6), characterized in that: Also includes: A screw linear module (7) is arranged on the upper side wall of the mounting plate (1) and is located behind the mounting frame (2); the movable end of the screw linear module (7) is fixedly connected to a curved rod (8); the lower end of the curved rod (8) is connected to a protective frame (9) via a sensing component (10); An induction defoaming component (21), arranged on the left side wall of the protective frame (9), for spraying a defoaming agent of an appropriate concentration; A polishing assembly (33) is provided on the outside of the mounting frame (2) and is used to clean the rusted area on the surface of the mounting frame (2). The induction assembly (10) includes an induction box (101) fixedly connected to the lower end of the bending rod (8). The front inner wall of the induction box (101) is connected to a moving block (102) via a spring. The lower inner wall of the induction box (101) is fixedly connected to a trigger switch (11). The trigger switch (11) is electrically connected to the controller (6). The lower side wall of the moving block (102) is fixedly connected to a moving rod (12). The lower end of the moving rod (12) is fixedly connected to a fixing frame (13). The inner wall of the fixing frame (13) is rotatably connected to a rotating rod (14). The fixing frame (13) ) and the rotating rod (14), a coil spring (19) is provided between the rod wall fixing sleeve of the rotating rod (14), a rotating plate (15) is provided, the lower end of the rotating plate (15) is fixedly connected to the upper side wall of the protective frame (9), the left side wall of the fixed frame (13) is fixedly connected to the support frame (16), the left side wall of the support frame (16) is fixedly connected to the transverse electric push rod (17), the moving end of the transverse electric push rod (17) passes through the support frame (16) and is fixedly connected to the moving plate (18), the right side wall of the moving plate (18) is fixedly connected to two limit pins (20), the side walls of the fixed frame (13) and the rotating plate (15) are both provided with limit holes that match the limit pins (20), the induction defoaming component (21 ) includes a guide cylinder (211) fixedly connected to the left side of the protective frame (9), a guide block (212) is slidably provided in the guide cylinder (211), a lifting rod (22) is fixedly connected to the lower side wall of the guide block (212), the lifting rod (22) is an L-shaped structure, the lower end of the lifting rod (22) extends out of the guide cylinder (211) and is fixedly connected to a floating block (23), the upper side wall of the floating block (23) is fixedly connected to two vertical plates (24), the front side wall of the vertical plate (24) located at the rear side is fixedly connected to a plurality of optical signal generators (25), the rear side wall of the vertical plate (24) located at the front side is fixedly connected to a plurality of optical signal receivers (26) that match the optical signal generators (25), and the optical signal The signal receiver (26) is electrically connected to the controller (6), the upper side wall of the mounting plate (1) is fixedly connected to a storage box (27), the upper side wall of the storage box (27) is fixedly connected to a delivery pump (28), the feed end of the delivery pump (28) is connected to the storage box (27), the discharge end of the delivery pump (28) is fixedly connected to a delivery hose (29), the upper end of the delivery hose (29) is connected to a bent rod (8), the bent rod (8) is a hollow structure, the inner wall of the protective frame (9) is fixedly connected to a defoaming pipe (30), the inner wall of the defoaming pipe (30) is fixedly connected to a plurality of defoaming nozzles (31), and the defoaming pipe (30) and the bent rod (8) are fixedly connected to a same discharge hose (32).

2. A river flood prevention early warning monitoring device according to claim 1, characterized in that: The polishing assembly (33) includes a polishing frame (331), which is fixedly connected to the movable end of the screw linear module (7) through a bracket, and a plurality of visual sensors (332) are fixedly connected to the upper side wall of the polishing frame (331), and the plurality of visual sensors (332) are electrically connected to the controller (6). The four side walls of the polishing frame (331) are fixedly connected to polishing electric push rods (34), and the movable end of the polishing electric push rod (34) passes through the polishing frame (331) and is connected to the polishing mechanism (41). The lower side wall of the polishing frame (331) is connected to the spraying assembly (35).

3. A river flood prevention early warning monitoring device according to claim 2, characterized in that: The spray assembly (35) includes a spray box (351) fixedly connected to the lower side wall of the polishing frame (331), the spray box (351) is a frame-type structure, the inner wall of the spray box (351) is fixedly connected to a spray pipe (352), the spray pipe (352) is a frame-type structure, the spray pipe (352) is fixedly connected to a plurality of atomizing nozzles (36) near the side wall of the mounting frame (2), the rear side wall of the spray box (351) is fixedly connected to a spray pump (37), the feed end of the spray pump (37) is connected to the spray box (351), and the discharge end of the spray pump (37) is connected to the spray pipe (352).

4. A river flood prevention early warning monitoring device according to claim 1, characterized in that: The upper side wall of the crossbar (3) is fixedly connected to a photovoltaic panel (38) via a bracket, and the upper side wall of the mounting plate (1) is fixedly connected to an energy storage power supply (39), and the photovoltaic panel (38) and the energy storage power supply (39) are electrically connected.

5. A river flood prevention early warning monitoring device according to claim 1, characterized in that: A rain sensor (40) is fixedly connected to the upper side wall of the crossbar (3), and the rain sensor (40) is electrically connected to the controller (6).

6. A river flood prevention early warning monitoring device according to claim 2, characterized in that: The grinding mechanism (41) includes a grinding frame (411), the movable end of the grinding electric push rod (34) is connected to the grinding frame (411) via a pressure sensor, the inner wall of the grinding frame (411) is rotatably connected to two driving rollers (412), the outer shells of the two driving rollers (412) are provided with the same grinding belt (42), and one of the driving rollers (412) is transmission-connected to the output end of the grinding motor below the grinding frame (411).

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