River flood prevention early warning monitoring device

Abstract

The invention belongs to the technical field of early warning monitoring devices, and particularly relates to a river flood prevention early warning monitoring device which comprises a mounting plate, a mounting frame is fixedly connected to the upper side wall of the mounting plate, a cross rod is fixedly connected to the upper end of the mounting frame, and an ultrasonic liquid level meter and a collection camera are connected to the lower side wall of the cross rod. And the upper side wall of the cross rod is fixedly connected with a controller. When foams appear in a river channel and influence the measurement precision of an ultrasonic liquid level meter in the monitoring device, a proper amount of defoaming agent can be automatically sprayed to a designated area, and foams left at the upstream are blocked, so that the measurement precision of the ultrasonic liquid level meter is ensured, and when a mounting frame of the monitoring device is rusted, the monitoring device is prevented from being damaged. The surface corrosion area of the mounting frame can be automatically polished, then paint is sprayed to the polished position, the anti-corrosion capacity of the mounting frame is guaranteed, and the problems that corrosion of the mounting frame is aggravated, and elements and circuits in the mounting frame are lack of protection are solved.

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 control early warning monitoring device. Background Art

[0002] Flood is a natural phenomenon in which the water volume of rivers, lakes and seas increases rapidly due to natural factors such as heavy rain, rapid melting of ice and snow, and storm surges, or the water level rises rapidly. Such a natural phenomenon often causes serious disasters. In particular, river floods near residential areas have a great impact on people's lives and property safety. Therefore, it is necessary to set up monitoring devices beside the river to monitor the water level in the river. For example, a river flood control monitoring and early warning device proposed in the patent publication number CN218547668U.

[0003] The untreated wastewater and domestic sewage in some factories are transported into the river along the drainage pipeline, which will cause foaming in the river. The monitoring device usually uses an ultrasonic level gauge to monitor the water level in the river. When there are many foams in the river, the existence of the foams will cause the ultrasonic waves to scatter, refract and reflect during the propagation process, resulting in some ultrasonic signals being 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 gauge to deviate and the accuracy to decrease. At the same time, due to the instability of the foams, their thickness, density and distribution state will change continuously with time and water flow conditions, which will lead to the continuous change of the propagation path and attenuation degree of the ultrasonic waves in the foams, making the signal intensity and time delay received by the sensor unstable, and the level gauge may have a large fluctuation in readings and cannot provide accurate and stable liquid level data, bringing difficulties to the subsequent monitoring and control work.

[0004] Therefore, a river flood control 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 control early warning monitoring device for the above problems.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions: A river flood control early warning monitoring device includes a mounting plate, the upper side wall of the mounting plate is fixedly connected with a mounting frame, the upper end of the mounting frame is fixedly connected with a cross bar, the lower side wall of the cross bar is connected with an ultrasonic level gauge and a collection camera, the upper side wall of the cross bar is fixedly connected with a controller, and further includes: A lead screw linear module is arranged on the upper side wall of the mounting plate, behind the mounting frame. The moving end of the lead screw linear module is fixedly connected with a bent rod, and the lower end of the bent rod is connected with a protective frame through an induction component; An induction defoaming component is arranged on the left side wall of the protective frame for spraying an antifoaming agent with an appropriate concentration; A grinding assembly is arranged on the outer side of the mounting frame and is used to clean the rusty areas on the surface of the mounting frame.

[0007] Preferably, the induction assembly includes an induction box fixedly connected to the lower end of the bent rod. A moving block is connected to the inner wall of the front side of the induction box through a spring. A trigger switch is fixedly connected to the inner wall of the lower side of the induction box. The trigger switch is electrically connected to the controller. A moving rod is fixedly connected to the lower side wall of the moving block. The lower end of the moving rod is fixedly connected to a fixing frame. A rotating rod is rotatably connected to the inner wall of the fixing frame. A disc spring is arranged between the fixing frame and the rotating rod. A rotating plate is fixedly sleeved on the rod wall of the rotating rod. The lower end of the rotating plate is fixedly connected to the upper side wall of the protection frame. A support frame is fixedly connected to the left side wall of the fixing frame. A horizontal electric push rod is fixedly connected to the left side wall of the support frame. The moving end of the horizontal electric push rod passes through the support frame and is fixedly connected to a moving plate. Two limit pins are fixedly connected to the right side wall of the moving plate. Limit holes matching the limit pins are formed in the side walls of the fixing frame and the rotating plate.

[0008] Preferably, the induction defoaming assembly includes a guide cylinder fixedly connected to the left side of the protection frame. A guide block is slidably arranged in the guide cylinder. A lifting rod is fixedly connected to the lower side wall of the guide block. The lifting rod is of 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. Two vertical plates are fixedly connected to the upper side wall of the floating block. A plurality of optical signal generators are fixedly connected to the front side wall of the rear vertical plate. A plurality of optical signal receivers matching the optical signal generators are fixedly connected to the rear side wall of the front vertical plate. The optical signal receivers are electrically connected to the controller. A storage tank is fixedly connected to the upper side wall of the mounting plate. A delivery pump is fixedly communicated with the upper side wall of the storage tank. The feed end of the delivery pump is communicated with the storage tank. The discharge end of the delivery pump is fixedly communicated with a delivery hose. The upper end of the delivery hose is communicated with the bent rod. The bent rod is of a hollow structure. An anti-foaming pipe is fixedly connected to the inner wall of the protection frame. A plurality of anti-foaming nozzles are fixedly communicated with the inner wall of the anti-foaming pipe. The anti-foaming pipe and the bent rod are fixedly communicated with the same discharge hose.

[0009] Preferably, the grinding assembly includes a grinding frame. The grinding frame is fixedly connected to the moving end of a screw linear module through a bracket. A plurality of visual sensors are fixedly connected to the upper side wall of the grinding frame. All the visual sensors are electrically connected to the controller. Grinding electric push rods are fixedly connected to the four side walls of the grinding frame. The moving ends of the grinding electric push rods pass through the grinding frame and are connected to a grinding mechanism. A spraying assembly is connected to the lower side wall of the grinding frame.

[0010] 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.

[0011] 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.

[0012] 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.

[0013] Preferably, the grinding mechanism includes a grinding frame, the movable end of the grinding electric push rod is connected to the grinding frame via 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.

[0014] Compared with the existing technology, the advantages of a river flood prevention early warning monitoring device are: 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, ensuring the measurement accuracy of the ultrasonic level meter.

[0015] By setting up the sensing component and the protective frame, while using the protective frame to block the upstream foam, other impurities floating on the river surface can also be blocked to prevent other impurities from affecting the measurement accuracy of the ultrasonic level meter; and when larger debris hits the protective frame, the protective frame can be rotated in the direction of the debris impact to avoid the problem of the protective frame being deformed by the impact of larger debris.

[0016] By setting up the grinding component and the spraying component, when the mounting frame of the monitoring device is rusted, the rusted area on the surface of the mounting frame can be automatically polished, and then the paint can be sprayed on the polished area, thereby ensuring the anti-corrosion ability of the mounting frame, avoiding the problem of aggravated corrosion of the mounting frame and lack of protection for the internal components and lines of the mounting frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a river flood prevention early warning monitoring device provided by the present invention; Figure 2 It is a structural schematic diagram of a sensing component in a river flood prevention early warning monitoring device provided by the present invention; Figure 3 It is a schematic diagram of the positional relationship between the protective frame and the defoaming pipe in a river flood prevention early warning and monitoring device provided by the present invention; Figure 4 It is a schematic structural diagram of an induction defoaming assembly in a river flood prevention early warning and monitoring device provided by the present invention; Figure 5 It is a schematic diagram of the positional relationship between the grinding frame and the spraying box in a river flood prevention early warning and monitoring device provided by the present invention; Figure 6 It is a top view of a grinding assembly in a river flood prevention early warning and monitoring device provided by the present invention; Figure 7 It is a top view of a spraying assembly in a river flood prevention early warning and monitoring device provided by the present invention; Figure 8 It is a schematic structural diagram of a grinding mechanism in a river flood prevention early warning and monitoring device provided by the present invention.

[0018] In the figure: 1 mounting plate, 2 mounting frame, 3 cross bar, 4 ultrasonic level gauge, 5 acquisition camera, 6 controller, 7 lead screw linear module, 8 bent rod, 9 protective frame, 10 induction component, 101 induction box, 102 moving block, 11 trigger switch, 12 moving rod, 13 fixing frame, 14 rotating rod, 15 rotating plate, 16 support frame, 17 horizontal electric push rod, 18 moving plate, 19 disc spring, 20 limit pin, 21 induction defoaming component, 211 guide tube, 212 guide block, 22 lifting rod, 23 floating block, 24 vertical plate, 25 optical signal generator, 26 optical signal receiver, 27 storage tank, 28 delivery pump, 29 delivery hose, 30 defoaming pipe, 31 defoaming nozzle, 32 discharge hose, 33 grinding component, 331 grinding frame, 332 vision sensor, 34 grinding electric push rod, 35 spraying component, 351 spraying 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 implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0020] As Figures 1 - 8As shown in the figure, a flood prevention early warning and monitoring device for river channels includes a mounting plate 1. The upper side wall of the mounting plate 1 is fixedly connected with a mounting frame 2. The upper end of the mounting frame 2 is fixedly connected with a cross bar 3. The lower side wall of the cross bar 3 is connected with an ultrasonic level gauge 4 and a collection camera 5. The upper side wall of the cross bar 3 is fixedly connected with a controller 6. The upper side wall of the cross bar 3 is fixedly connected with a photovoltaic panel 38 through a bracket. The upper side wall of the mounting plate 1 is fixedly connected with 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 supply power to the energy storage power supply 39, improving the environmental protection ability of the device. The upper side wall of the cross bar 3 is fixedly connected with a rain sensor 40. The rain sensor 40 and the controller 6 are electrically connected, and can detect the amount of rainfall. It also includes: A screw linear module 7 is arranged on the upper side wall of the mounting plate 1, behind the mounting frame 2. The moving end of the screw linear module 7 is fixedly connected with a bent rod 8. The lower end of the bent rod 8 is connected with a protective frame 9 through an induction component 10. The induction component 10 includes an induction box 101 fixedly connected to the lower end of the bent rod 8. The front inner wall of the induction box 101 is connected with a moving block 102 through a spring. The lower inner wall of the induction box 101 is fixedly connected with a trigger switch 11. The trigger switch 11 and the controller 6 are electrically connected. The lower side wall of the moving block 102 is fixedly connected with a moving rod 12. The lower end of the moving rod 12 is fixedly connected with a fixing frame 13. The inner wall of the fixing frame 13 is rotatably connected with a rotating rod 14. A disc spring 19 is arranged between the fixing frame 13 and the rotating rod 14. The rod wall of the rotating rod 14 is fixedly sleeved with a rotating plate 15. The lower end of the rotating plate 15 is fixedly connected with the upper side wall of the protective frame 9. The left side wall of the fixing frame 13 is fixedly connected with a support frame 16. The left side wall of the support frame 16 is fixedly connected with a horizontal electric push rod 17. The moving end of the horizontal electric push rod 17 passes through the support frame 16 and is fixedly connected with a moving plate 18. The right side wall of the moving plate 18 is fixedly connected with two limit pins 20. The side walls of the fixing frame 13 and the rotating plate 15 are both provided with limit holes matching the limit pins 20. When the protective frame 9 is impacted by larger sundries, it can rotate a certain angle to avoid the problem of deformation of the protective frame 9 caused by a large impact force; 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 slidably arranged 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. A plurality of optical signal generators 25 are fixedly connected to the front side wall of the rear vertical plate 24. A plurality of optical signal generators 25 are fixedly connected to the rear side wall of the front vertical plate 24. 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 with a storage box 27, and the upper side wall of the storage box 27 is fixedly connected with a delivery pump 28. The feed end of the delivery pump 28 is connected with the storage box 27, and the discharge end of the delivery pump 28 is fixedly connected with a delivery hose 29. The upper end of the delivery hose 29 is connected with the bent rod 8. The bent rod 8 is a hollow structure. The inner wall of the protective frame 9 is fixedly connected with a defoaming pipe 30, and the inner wall of the defoaming pipe 30 is fixedly connected with a plurality of defoaming nozzles 31. The defoaming pipe 30 and the bent rod 8 are fixedly connected with the same discharge hose 32, which can automatically spray an appropriate amount of defoaming agent according to the thickness of the foam; The grinding assembly 33 is arranged on the outer side 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, and the upper side wall of the grinding frame 331 is fixedly connected with a plurality of visual sensors 332, and the plurality of 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, and the movable end of the grinding electric push rod 34 passes through the grinding frame 331 and is connected with a grinding mechanism 41. The grinding mechanism 41 includes a grinding frame 411, and 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 driving rollers 412, and the two driving rollers 412 The outer jacket is provided with the same grinding belt 42, in which one driving roller 412 is transmission-connected to the output end of the grinding motor below the grinding frame 411, and the lower side wall of the grinding frame 331 is connected to a spray assembly 35, which can grind the rusted area of ​​the mounting frame 2, and the spray assembly 35 includes a spray box 351 fixedly connected to the lower side wall of the grinding frame 331, the spray box 351 is a frame-type structure, and the inner wall of the spray box 351 is fixedly connected to a spray pipe 352, and 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, and 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 grinding area.

[0021] The operating principle of the present invention is described as follows: The monitoring device is installed on one side of the river to be monitored. The ultrasonic level gauge 4 is used to monitor the water level of the river. When it is detected that the water level in the river exceeds the warning level, the ultrasonic level gauge 4 will promptly inform the monitoring personnel through the wireless communication module inside the controller 6, and through the buzzer module inside the controller 6, it will remind the surrounding people to evacuate to higher places. When there are foams under the ultrasonic level gauge 4 due to pollution or other reasons in the river, the foams will cause the ultrasonic waves emitted by the ultrasonic level gauge 4 to scatter, refract and reflect during the propagation process, resulting in deviation of the measurement data. Moreover, as the foams change continuously with the water flow, the ultrasonic level gauge 4 will show large fluctuations in data. The ultrasonic level gauge 4 will transmit the monitoring data to the controller 6; When the controller 6 detects this situation, the controller 6 will control the lead screw linear module 7 to work. The lead screw linear module 7 drives the protective frame 9 to move downward to a set position through the bent rod 8, and uses the protective frame 9 to block the foams flowing down from the upstream. And when the lower end of the protective frame 9 extends into the water surface, due to the density of the floating block 23 being less than that of the river water and the density of the two vertical plates 24 on both sides being greater than that of the river water, the floating block 23 will float in the water under the action of buoyancy. And the distance between the lowermost optical signal generator 25 and the optical signal receiver 26 and the water surface is 0.5 cm. Since the density of the floating block 23 is greater than that of the foams, therefore, the foams will be between the two vertical plates 24. Since the foams will block, refract and reflect the optical signals emitted by the optical signal generator 25, the optical signal intensity will be weakened. When there are more and thicker foams on the river surface, the optical signals emitted by the upper optical signal generator 25 will not be weakened. After the controller 6 detects this situation, it means that there are more foams in the river. The controller 6 will control the delivery pump 28 to work for a longer time. The delivery pump 28 will transport the defoamer stored in the storage tank 27 through the delivery hose 29, the bent rod 8 and the discharge hose 32 to the defoaming pipe 30 and spray it out through the defoaming nozzle 31, so as to eliminate the foams inside the protective frame 9. And the upstream foams will be blocked by the protective frame 9, thus ensuring that there are no foams under the ultrasonic level gauge 4 and ensuring the measurement accuracy of the ultrasonic level gauge 4; 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 squeezes the trigger switch 11, and 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, and the limit of the rotating plate 15 is released, so that the rotating plate 15 drives the protection frame 9 to rotate a certain angle along the rotating rod 14, so that the heavier debris flows away from the bottom of the protection 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 purpose 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, and fix the position of the rotating plate 15; 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 scope 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 by 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 reciprocate 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 through the corresponding atomizing nozzle 36, so that the grinding area can be treated with paint 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, which is convenient for the operator to record it later and replenish the paint in the spray box 351.

[0022] 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A river flood prevention early warning monitoring device, comprising 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 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 bending rod (8); the lower end of the bending 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), and used for spraying a defoaming agent of an appropriate concentration; A 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).

2. A river flood prevention early warning monitoring device according to claim 1, characterized in that: The sensing assembly (10) comprises 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) via 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 a controller (6); the lower 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); a disc spring (11) is provided between the fixing frame (13) and the rotating rod (14). 9), a rotating plate (15) is fixedly sleeved on the rod wall of the rotating rod (14), 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), and 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).

3. A river flood prevention early warning monitoring device according to claim 1, characterized in that: The induction defoaming component (21) comprises a guide cylinder (211) fixedly connected to the left side of the protection frame (9), a guide block (212) being slidably arranged in the guide cylinder (211), a lifting rod (22) being fixedly connected to the lower side wall of the guide block (212), the lifting rod (22) being an L-shaped structure, the lower end of the lifting rod (22) extending out of the guide cylinder (211) and being fixedly connected to a floating block (23), the upper side wall of the floating block (23) being fixedly connected to two vertical plates (24), a front side wall of the vertical plate (24) located at the rear side being fixedly connected to a plurality of optical signal generators (25), and a rear side wall of the vertical plate (24) located at the front side being fixedly connected to a plurality of optical signal receivers (26) matching the optical signal generators (25). ), the optical signal receiver (26) and the controller (6) are electrically connected, 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 protection 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).

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

5. A river flood prevention early warning monitoring device according to claim 4, characterized in that: The spray assembly (35) comprises a spray box (351) fixedly connected to the lower side wall of the grinding frame (331); the spray box (351) is a frame-type structure; a spray pipe (352) is fixedly connected to the inner wall of the spray box (351); the spray pipe (352) is a frame-type structure; a plurality of atomizing nozzles (36) are fixedly connected to the side wall of the spray pipe (352) close to the mounting frame (2); a spray pump (37) is fixedly connected to the rear side wall of the spray box (351); a feed end of the spray pump (37) is connected to the spray box (351); and a discharge end of the spray pump (37) is connected to the spray pipe (352).

6. 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, the upper side wall of the mounting plate (1) is fixedly connected to an energy storage power source (39), and the photovoltaic panel (38) and the energy storage power source (39) are electrically connected.

7. 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).

8. A river flood prevention early warning monitoring device according to claim 4, characterized in that: The grinding mechanism (41) comprises 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 drivingly connected to the output end of the grinding motor below the grinding frame (411).

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