A rainstorm disaster assessment and prediction system

Abstract

The invention relates to the technical field of rainstorm disaster assessment and prediction, and in particular to a rainstorm disaster assessment and prediction system, comprising a server, a pressure sensor, a scattering turbidity meter and a prediction device; the server is connected to the pressure sensor, the scattering turbidity meter and the prediction device through a network for data transmission; the server then processes and analyzes the data; the pressure sensor is used to sense the leakage of the outer wall of a pipeline, and the pressure sensor is laid around the pipeline; the scattering turbidity meter is used to detect the turbidity in the water; the prediction device is used to detect the drainage of the pipeline; the invention simulates the drainage effect of a rainwater outlet through the prediction device, and then cooperates with the pressure sensor and the scattering turbidity meter, thereby realizing the assessment and prediction of urban drainage pipelines during rainstorms, thereby preventing the situation that the urban rainwater outlet cannot discharge rainwater after the rainstorm, so that the safety of people's lives and property is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of rainstorm disaster assessment and prediction, and in particular to a rainstorm disaster assessment and prediction system. Background Art

[0002] Water disasters have always been natural disasters that have plagued the development of human society. Flood disaster prediction is one of the core contents of flood prevention and disaster reduction work. At present, the management of water disasters uses geographic information system technology, remote sensing technology and global positioning system technology, as well as rainstorm prediction technology and flood forecasting technology to simulate and predict. However, this management method completes each task relatively independently, and does not integrate all technologies into one platform, which is not conducive to the rapid and effective prediction of water disasters. At the same time, the three-dimensional visualization of the evolution of urban water disasters is currently in the exploratory research stage. Due to the lack of existing technology, the existing urban pipelines have not been simulated and predicted for drainage after installation, which has resulted in restricted urban drainage after heavy rains, making it impossible for rainwater to be discharged, and thus causing losses to people's lives and property.

[0003] There are also some technical solutions for rainstorm disaster assessment and prediction systems in the prior art. For example, a Chinese patent with application number CN200910190636.6 discloses a method for simulating and predicting urban rainstorm water disasters, including: A. modifying the rainstorm runoff management model to make it consistent with the data model of the geographic information system; B. embedding the calculation kernel of the rainstorm runoff management model into the geographic information system through the geographic information system; C. dividing the sub-basin of the study area; D. using the geographic information system to obtain the parameters required for each model; E. using the rainstorm runoff management model in the geographic information system to perform Simulation calculation; F. Realize three-dimensional visualization according to the result of the simulation calculation; This technical solution can effectively improve the prediction efficiency of urban rainstorm water disasters, realize the informatization and digitization of urban water disaster prediction, and can provide fast, accurate, intuitive and effective forecasts of the location, depth, time and duration of water accumulation in urban rainstorm water disasters, and provide decision-making support for disaster prevention and mitigation; However, this technical solution still cannot solve the problem that the existing urban pipelines have not been simulated and predicted for drainage after installation, which results in restricted urban drainage after heavy rain, making it impossible for rainwater to be discharged, causing losses to people's lives and property, and thus causing limitations to this solution.

[0004] In view of this, in order to overcome the above technical problems, the present invention proposes a rainstorm disaster assessment and prediction system to solve the above technical problems. Summary of the invention

[0005] In order to make up for the shortcomings of the prior art, the present invention proposes a rainstorm disaster assessment and prediction system. The present invention simulates the drainage effect of the rainwater outlet through a prediction device, and then cooperates with a pressure sensor and a scattering turbidity meter, thereby realizing the assessment and prediction of urban drainage pipes during heavy rains, thereby preventing the situation where the urban rainwater outlets cannot discharge rainwater after heavy rains, thereby ensuring the safety of people's lives and property.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: a rainstorm disaster assessment and prediction system described in the present invention comprises a server, a pressure sensor, a scattering turbidity meter and a prediction device; the server is connected to the pressure sensor, the scattering turbidity meter and the prediction device through a network for data transmission; the server processes and analyzes the data; the pressure sensor is used to sense the leakage of the outer wall of the pipeline, and the pressure sensor is laid around the pipeline; the scattering turbidity meter is used to detect the turbidity in the water; the prediction device is used to detect the drainage of the pipeline;

[0007] The prediction device comprises a box body, a baffle and a controller; the cross-sectional shape of the box body is a circular shape, and slide grooves are arranged on two inner walls of the box body; a sliding rod is fixedly connected between the two groove walls of one of the slide grooves, and a screw is rotatably connected between the two groove walls of the other slide groove; a support rod is arranged between the two inner walls of the box body; two baffles are rotatably connected to the support rod; a limited position block is fixedly connected to the side of the baffle close to the bottom, and the bottom of the box body can be blocked when two adjacent baffles are parallel to each other; one end of the support rod is slidably connected to the slide rod, and the other end is threadedly connected to the screw; the rotation of the screw can drive the support rod to slide along the slide rod; a motor is installed at the upper end of the box body; the output shaft of the motor is connected to one end of the screw; the controller is used to control the automatic operation of the prediction device;

[0008] During use, due to the inadequacy of existing technology, the existing urban pipelines have not been simulated and predicted for drainage after installation, which results in restricted urban drainage after heavy rains, making it impossible for rainwater to be discharged, thus causing losses to people's lives and property;

[0009] Therefore, in the present invention, the staff will clamp the box in the prediction device around the rainwater outlet, and then start the controller to rotate the controller motor, the rotating motor drives the fixed screw to rotate, the screw rotation will drive the support rod to slide along the sliding rod, so that the support rod moves to the bottom of the box, the movement of the support rod will drive the baffle to move, the movement of the baffle will also drive the limit block to move, so that after the limit block contacts the ground, due to the action of the limit block, the baffle is parallel to the ground, so that the end faces of the two adjacent baffles are parallel to each other, so that the bottom of the box is blocked by the baffle, and the staff then pours water into the box, so that the water fills the inside of the box, and the turbidity in the water is detected by the scattering turbidity meter, thereby ensuring that the water in the box is consistent with the turbidity of the ground water after the rainstorm, thereby improving After the experiment was completed, the staff controlled the motor to reverse through the controller. The motor drove the support rod upward through the screw. The support rod drove the baffle to move in the water, which would generate resistance. The baffle rotated around the support rod under the action of resistance. Then, the bottom of the box could be opened after the support rod drove the baffle to move, so that the water in the box was connected to the rainwater outlet, simulating the drainage effect of the rainwater outlet after a rainstorm. The controller recorded the time when the water in the box was drained from the rainwater outlet, and the pressure sensor detected whether the surrounding of the pipe was damaged under the action of water pressure. The controller collected the data and transmitted it to the server. The server then integrated and analyzed the data to obtain the rainwater discharge situation of the urban rainwater outlet after the rainstorm, completing the assessment and prediction of the urban drainage pipes after the rainstorm disaster.

[0010] The present invention simulates the drainage effect of the stormwater outlet through a prediction device, and then cooperates with a pressure sensor and a scattering turbidity meter to achieve an evaluation and prediction of urban drainage pipes during heavy rains, thereby preventing the situation where the urban stormwater outlet cannot discharge rainwater after heavy rains, thereby ensuring the safety of people's lives and property.

[0011] Preferably, a roller is provided between the two inner walls of the box; the central axis of the roller is parallel to the central axis of the support rod, and the roller is located directly above the corresponding baffle; a wire rope is fixedly connected to a side of the baffle close to the motor; the other end of the wire rope is passed around the roller and connected to the blades; the blades are randomly distributed on the outer wall of the wire rope; when in use, the baffle will drive the wire rope to move during the upward movement of the baffle driven by the support rod, and the blades will move downward under the action of gravity. In the process of downward movement, the blades need to overcome the resistance of water, so that the blades drive the water flow to move, thereby achieving the effect of simulating the flow of water during heavy rain, and at the same time, the blades will move to the vicinity of the rainwater outlet under the action of gravity, so that part of the rainwater outlet is blocked by the blades, thereby simulating the situation where the rainwater outlet is blocked by foreign objects after heavy rain, making the simulation of the prediction device more realistic, thereby improving the accuracy of heavy rain disaster assessment.

[0012] Preferably, a groove is provided on one side of the limit block away from the baffle; a sliding block is slidably connected in the groove, and a spring is also provided in the groove; one end of the spring is connected to the bottom of the groove, and the other end is connected to the sliding block; when in use, when the support rod drives the baffle to move upward, the two baffles rotate around the support rod under the action of water resistance, so that the end faces of the two baffles are close to each other, and the movement of the baffle will also drive the limit block to move, and the movement of the limit block will drive the sliding block to move, so that the two sliding blocks collide under the drive of the corresponding limit block, so that the limit block slides along the groove after being hit, and the limit block will also compress the spring during the sliding process along the groove, and the spring will generate a reaction force on the limit block after compression, and then the motor stops rotating, and the resistance encountered by the baffle is less than the elastic force of the spring, so that the two limit blocks drive the baffle to rotate in the opposite direction around the support rod under the action of the spring, and the rotation of the baffle will stir the water inside the box, thereby simulating the situation of torrents during heavy rain, so that the accuracy of the prediction simulation is further improved.

[0013] Preferably, an air hole is provided inside the limit block; one end of the air hole is connected to the bottom of the groove, and the other end is connected to the outer wall of the limit block; the other ends of the air holes in the two limit blocks are arranged opposite to each other; when in use, the volume in the groove is compressed during the sliding process of the slider along the groove to overcome the elastic force of the spring, so that the liquid pressure in the groove is higher than the water pressure outside the groove, so the water in the groove is discharged along the air hole after being squeezed, and the water flows discharged from the two air holes form a counter-attack, so that the water flows ejected from the air holes generate a reaction force on the baffle after the counter-attack, and then cooperate with the elastic force of the spring to increase the swing angle of the baffle around the support plate, so that the effect of the baffle stirring the surrounding water is improved, thereby improving the effect of the prediction device simulating torrents during heavy rain.

[0014] Preferably, a spring sheet is fixedly connected to a side of the baffle plate close to the motor; a fin plate is fixedly connected to an outer wall of the spring sheet; an end face of the fin plate is perpendicular to the horizontal plane during the movement of the baffle plate; protrusions are provided on both side walls of the fin plate; the cross-sectional shape of the protrusion is triangular; when in use, when the motor drives the support rod to move upward, the controller will also control the motor to reverse, so that the support rod drives the baffle plate to swing back and forth, thereby further simulating the flow effect of water during heavy rain, and when the support rod drives the baffle plate to move downward, two adjacent baffle plates will also approach each other under the action of the water flow, so that the two spring sheets collide under the action of the corresponding baffle plates, so that the baffle plate moves under the elastic force of the spring sheet, thereby improving the flow effect of the baffle plate driving the water, and at the same time, the movement of the spring sheet will drive the fin plate to move, and the water will be diverted during the movement of the fin plate, thereby improving the flow effect of the water; through the protrusions on the fin plate (22), the diversion effect of the fin plate (22) on water is improved.

[0015] Preferably, a screw rod is fixedly connected between the two inner walls of the box body; the central axis of the screw rod is concentric with the central axis of the roller, and the screw rod is threadedly connected to the roller; a flange is fixedly connected to the outer wall of the rope; the shape of the flange is hemispherical, and the flanges are randomly distributed on the outer wall of the rope; when in use, the blade pulls the rope around the roller to move, and the roller is driven to roll by the rope. After the roller rolls, it will rotate along the screw rod, so that the roller moves from one end of the screw to the other end. The movement of the roller will drive the rope to move, and the movement of the rope will drive the blades to move, thereby simulating the effect of impurities in the water flow flowing after being impacted by rainwater, further improving the authenticity of the drainage prediction of the urban rainwater outlet, and improving the accuracy of the rainstorm disaster assessment of the present invention; the flange on the outer wall of the rope improves the friction between the rope and the roller, thereby improving the stability of the roller rolling driven by the rope.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The present invention simulates the drainage effect of the rainwater outlet through the prediction device, and then cooperates with the pressure sensor and the scattering turbidity meter to realize the evaluation and prediction of the urban drainage pipe during heavy rain, thereby preventing the situation where the urban rainwater outlet cannot discharge rainwater after heavy rain, so that the safety of people's lives and property is guaranteed.

[0018] 2. When the support rod of the prediction device in the present invention drives the baffle to move upward, the baffle will drive the rope to move, and the blades will move downward under the action of gravity. The blades need to overcome the resistance of water during the downward movement, so that the blades drive the water flow to achieve the effect of simulating the flow of water during heavy rain. At the same time, the blades will move to the vicinity of the rainwater outlet under the action of gravity, so that part of the rainwater outlet is blocked by the blades, thereby simulating the situation where the rainwater outlet is blocked by foreign objects after heavy rain, making the simulation of the prediction device more realistic, thereby improving the accuracy of heavy rain disaster assessment.

[0019] 3. When the support rod of the prediction device in the present invention drives the baffle to move upward, the two baffles rotate around the support rod under the action of water resistance. The movement of the baffle will also drive the limit block to move, so that the two sliders collide under the drive of the corresponding limit blocks, so that the limit block slides along the groove after being hit, and the limit block will also compress the spring during the sliding process along the groove. After the spring is compressed, a reaction force is generated on the limit block, and then the two limit blocks drive the baffle to rotate in the opposite direction around the support rod under the action of the spring. The rotation of the baffle will stir the water inside the box, thereby simulating the situation of torrents during heavy rain, so that the accuracy of the prediction simulation is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0021] Figure 1 is a stereoscopic diagram of the prediction device of the present invention when viewed from above;

[0022] Figure 2 is a three-dimensional diagram of the prediction device in the present invention when viewed from above;

[0023] Figure 3 is a position diagram of the roller and the screw rod in the prediction device of the present invention;

[0024] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5 is a cross-sectional view of the prediction device of the present invention;

[0026] Figure 6 yes Figure 5 Enlarged view of point B in the middle;

[0027] Figure 7 yes Figure 5 Enlarged view of point C in the middle;

[0028] Figure 8 yes Figure 5 Enlarged view of point D in the middle;

[0029] Fig. 9 yes Figure 5 Enlarged view of point E in the middle;

[0030] In the figure: box 1, slide groove 11, slide rod 12, screw 13, support rod 14, limit block 15, groove 151, slider 152, spring 153, air hole 154, motor 16, roller 17, rope 18, flange 181, blade 19, baffle 2, spring piece 21, fin 22, protrusion 23, screw rod 3. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] like Figures 1 to 9 As shown, a rainstorm disaster assessment and prediction system described in the present invention includes a server, a pressure sensor, a scattering turbidity meter and a prediction device; the server and the pressure sensor, the scattering turbidity meter and the prediction device are connected through a network for data transmission; the server then processes and analyzes the data; the pressure sensor is used to sense the leakage of the outer wall of the pipeline, and the pressure sensor is laid around the pipeline; the scattering turbidity meter is used to detect the turbidity in the water; the prediction device is used to detect the drainage of the pipeline;

[0033] The prediction device comprises a box body 1, a baffle 2 and a controller; the cross-sectional shape of the box body 1 is a circular shape, and a slide groove 11 is arranged on two inner walls of the box body 1; a slide rod 12 is fixedly connected between the two groove walls of one of the slide grooves 11, and a screw rod 13 is rotatably connected between the two groove walls of the other slide groove 11; a support rod 14 is arranged between the two inner walls of the box body 1; two baffles 2 are rotatably connected to the support rod 14; a side of the baffle 2 close to the bottom is fixedly connected to a limiting block 15, and two adjacent baffles 2 can block the bottom of the box body 1 after being parallel to each other; one end of the support rod 14 is slidably connected to the slide rod 12, and the other end is threadedly connected to the screw rod 13; the rotation of the screw rod 13 can drive the support rod 14 to slide along the slide rod 12; a motor 16 is installed at the upper end of the box body 1; the output shaft of the motor 16 is connected to one end of the screw rod 13; the controller is used to control the automatic operation of the prediction device;

[0034] During use, due to the inadequacy of existing technology, the existing urban pipelines have not been simulated and predicted for drainage after installation, which results in restricted urban drainage after heavy rains, making it impossible for rainwater to be discharged, thus causing losses to people's lives and property;

[0035] Therefore, in the present invention, the staff will clamp the box 1 in the prediction device around the rainwater outlet, and then start the controller motor 16 to rotate. The rotating motor 16 drives the fixed screw 13 to rotate. The rotation of the screw 13 will drive the support rod 14 to slide along the slide rod 12, so that the support rod 14 moves to the bottom of the box 1. The movement of the support rod 14 will drive the baffle 2 to move, and the movement of the baffle 2 will also drive the limit block 15 to move. After the limit block 15 contacts the ground, due to the action of the limit block 15, the baffle 2 is parallel to the ground, so that the end faces of the two adjacent baffles 2 are parallel to each other, so that the bottom of the box 1 is blocked by the baffle 2, and the staff then pours water into the box 1, so that the water fills the interior of the box 1, and the turbidity in the water is detected by the scattering turbidity meter, thereby ensuring that the turbidity of the water in the box 1 is the same as that of the ground water after the rainstorm. The results are consistent, thereby improving the accuracy of the experiment. Subsequently, the staff controls the motor 16 to reverse through the controller, and the motor 16 drives the support rod 14 to move upward through the screw 13. The support rod 14 drives the baffle 2 to move in the water, which will generate resistance, so that the baffle 2 rotates around the support rod 14 under the action of the resistance, and then the support rod 14 drives the baffle 2 to move and open the bottom of the box 1, so that the water in the box 1 is connected with the rainwater outlet, and the effect of simulating the drainage of the rainwater outlet after the rainstorm is achieved. The controller records the time when the water in the box 1 is discharged from the rainwater outlet, and the pressure sensor detects whether the surrounding of the pipe is damaged under the action of water pressure. The controller collects the data and transmits it to the server. The server then integrates and analyzes the data to obtain the rainwater discharge situation of the urban rainwater outlet after the rainstorm, completing the evaluation and prediction of the urban drainage pipeline after the rainstorm disaster.

[0036] The present invention simulates the drainage effect of the stormwater outlet through a prediction device, and then cooperates with a pressure sensor and a scattering turbidity meter to achieve an evaluation and prediction of urban drainage pipes during heavy rains, thereby preventing the situation where the urban stormwater outlet cannot discharge rainwater after heavy rains, thereby ensuring the safety of people's lives and property.

[0037] As an embodiment of the present invention, a roller 17 is provided between the two inner walls of the box body 1; the central axis of the roller 17 is parallel to the central axis of the support rod 14, and the roller 17 is located directly above the corresponding baffle 2; a wire rope 18 is fixedly connected to a side of the baffle 2 close to the motor 16; the other end of the wire rope 18 is connected to the blade 19 by passing around the roller 17; the blades 19 are randomly distributed on the outer wall of the wire rope 18; when in use, when the support rod 14 drives the baffle 2 to move upward, the baffle 2 will drive the wire rope 18 to move, and the blades 19 will move downward under the action of gravity. In the process of moving downward, the blades 19 need to overcome the resistance of water, so that the blades 19 drive the water flow to move, achieving the effect of simulating the flow of water during heavy rain, and at the same time, the blades 19 will move to the vicinity of the rainwater outlet under the action of gravity, so that part of the rainwater outlet is blocked by the blades 19, achieving the situation that the rainwater outlet is blocked by foreign objects after the heavy rain, making the simulation of the prediction device more realistic, thereby improving the accuracy of the heavy rain disaster assessment.

[0038] As an embodiment of the present invention, a groove 151 is provided on a side of the limit block 15 away from the baffle 2; a slider 152 is slidably connected in the groove 151, and a spring 153 is also provided in the groove 151; one end of the spring 153 is connected to the bottom of the groove 151, and the other end is connected to the slider 152; when in use, the support rod 14 drives the baffle 2 to move upward, and the two baffles 2 rotate around the support rod 14 under the action of water resistance, so that the end faces of the two baffles 2 are close to each other, and the movement of the baffle 2 will also drive the limit block 15 to move, and the movement of the limit block 15 will drive the slider 152 to move, so that the two sliders 1 52 is driven by the corresponding limit block 15 to collide, so that the limit block 15 slides along the groove 151 after being hit, and the limit block 15 will also compress the spring 153 during the sliding process along the groove 151. After the spring 153 is compressed, a reaction force is generated on the limit block 15, and then the motor 16 stops rotating. The resistance encountered by the baffle 2 is less than the elastic force of the spring 153, so that the two limit blocks 15 drive the baffle 2 to rotate in the opposite direction around the support rod 14 under the action of the spring 153. The rotation of the baffle 2 will stir the water inside the box 1, thereby simulating the situation of torrents during heavy rain, so that the accuracy of the prediction simulation is further improved.

[0039] As an embodiment of the present invention, an air hole 154 is provided inside the limit block 15; one end of the air hole 154 is connected to the bottom of the groove 151, and the other end is connected to the outer wall of the limit block 15; the other ends of the air holes 154 in the two limit blocks 15 are arranged opposite to each other; when in use, the slider 152 overcomes the elastic force of the spring 153 and slides along the groove 151, and the volume in the groove 151 is compressed, so that the liquid pressure in the groove 151 is higher than the pressure of the water outside the groove 151, so the water in the groove 151 is discharged along the air hole 154 after being squeezed, and the water flows discharged from the two air holes 154 form a counter-attack, so that the water flows ejected from the air holes 154 generate a reaction force on the baffle 2 after the counter-attack, and then cooperate with the elastic force of the spring 153 to increase the swing angle of the baffle 2 around the support plate, so that the effect of the baffle 2 stirring the surrounding water is improved, thereby improving the effect of the prediction device simulating the torrent during heavy rain.

[0040] As an embodiment of the present invention, a spring sheet 21 is fixedly connected to a side of the baffle 2 close to the motor 16; a fin 22 is fixedly connected to the outer wall of the spring sheet 21; the end surface of the fin 22 is perpendicular to the horizontal plane during the movement of the baffle 2; protrusions 23 are provided on both side walls of the fin 22; the cross-sectional shape of the protrusion 23 is triangular; when in use, the motor 16 drives the support rod 14 to move upward, and the controller also controls the motor 16 to reverse, so that the support rod 14 drives the baffle 2 to swing back and forth up and down, thereby further simulating the flow of water during heavy rain. In the process of the support rod 14 driving the baffle 2 to move downward, the two adjacent baffles 2 will also be close to each other under the action of the water flow, so that the two spring pieces 21 collide under the action of the corresponding baffles 2, so that the baffle 2 moves under the elastic force of the spring piece 21, thereby improving the flow effect of the water driven by the baffle 2. At the same time, the movement of the spring piece 21 will drive the fin 22 to move. The fin 22 will divert the water during the movement, thereby improving the flow effect of the water; through the protrusion 23 on the fin 22, the diversion effect of the fin 22 on the water is improved.

[0041] As an embodiment of the present invention, a screw rod 3 is fixedly connected between the two inner walls of the box body 1; the central axis of the screw rod 3 is concentric with the central axis of the roller 17, and the screw rod 3 is threadedly connected to the roller 17; a flange 181 is fixedly connected to the outer wall of the wire rope 18; the shape of the flange 181 is hemispherical, and the flanges 181 are randomly distributed on the outer wall of the wire rope 18; when in use, the blade 19 pulls the wire rope 18 to move around the roller 17, and the wire rope 18 drives the roller 17 to roll, and the roller 17 will rotate along the screw rod 3 after rolling, so that The roller 17 moves from one end of the screw 13 to the other end. The movement of the roller 17 drives the rope 18 to move, and the movement of the rope 18 drives the blade 19 to move, thereby simulating the effect of impurities in the water flow flowing after being impacted by rainwater, further improving the authenticity of the drainage prediction of urban rainwater outlets, and improving the accuracy of the rainstorm disaster assessment of the present invention; the flange 181 on the outer wall of the rope 18 increases the friction between the rope 18 and the roller 17, thereby improving the stability of the rope 18 driving the roller 17 to roll.

[0042] When in use, the staff will clamp the box body 1 in the prediction device around the rainwater outlet, and then start the controller motor 16 to rotate. The rotating motor 16 drives the fixed screw rod 13 to rotate. The rotation of the screw rod 13 will drive the support rod 14 to slide along the slide rod 12, so that the support rod 14 moves to the bottom of the box body 1. The movement of the support rod 14 will drive the baffle 2 to move. The movement of the baffle 2 will also drive the limit block 15 to move. After the limit block 15 contacts the ground, due to the action of the limit block 15, the baffle 2 is parallel to the ground, so that the end faces of the two adjacent baffles 2 are aligned. The two sides of the box 1 are parallel to each other, so that the bottom of the box 1 is blocked by the baffle 2. The staff then pours water into the box 1, so that the water fills the inside of the box 1. The turbidity in the water is detected by the scattering turbidity meter, thereby ensuring that the turbidity of the water in the box 1 is consistent with the turbidity of the ground water after the rainstorm, thereby improving the accuracy of the experiment. Subsequently, the staff controls the motor 16 to reverse through the controller, and the motor 16 drives the support rod 14 to move upward through the screw 13. The support rod 14 drives the baffle 2 to move in the water and generates resistance, so that the baffle 2 rotates around the support rod 14 under the action of the resistance. The support rod 14 drives the baffle plate 2 to move, so that the bottom of the box body 1 can be opened, so that the water in the box body 1 is connected to the rainwater outlet, and the effect of simulating the drainage of the rainwater outlet after a rainstorm is achieved. The controller records the time when the water in the box 1 is discharged from the rainwater outlet, and the pressure sensor detects whether the surrounding of the pipe is damaged under the action of water pressure. The controller collects the data and transmits it to the server. The server then integrates and analyzes the data to obtain the rainwater discharge situation of the urban rainwater outlet after the rainstorm, completing the assessment and prediction of the urban drainage pipe after the rainstorm disaster; the support rod 14 drives During the upward movement of the baffle 2, the baffle 2 will drive the rope 18 to move, and the blade 19 will move downward under the action of gravity. The blade 19 needs to overcome the resistance of water during the downward movement, so that the blade 19 drives the water flow to move, achieving the effect of simulating the flow of water during heavy rain. At the same time, the blade 19 will move around the rainwater outlet under the action of gravity, so that part of the rainwater outlet is blocked by the blade 19, achieving the simulation of the rainwater outlet being blocked by foreign objects after heavy rain, making the simulation of the prediction device more realistic, thereby improving the accuracy of the heavy rain disaster assessment;When the support rod 14 drives the baffle plate 2 to move upward, the two baffle plates 2 rotate around the support rod 14 under the action of water resistance, so that the end faces of the two baffle plates 2 are close to each other. The movement of the baffle plate 2 will also drive the limit block 15 to move. The movement of the limit block 15 will drive the slider 152 to move, so that the two sliders 152 collide with each other under the drive of the corresponding limit block 15, so that the limit block 15 slides along the groove 151 after being hit. When the limit block 15 slides along the groove 151, the spring 153 is also compressed. After the spring 153 is compressed, a reaction force is generated on the limit block 15. Then the motor 16 stops rotating, and the resistance of the baffle plate 2 is less than the elastic force of the spring 153, so that the two limit blocks 15, under the action of spring 153, drives baffle 2 to rotate in the opposite direction around support rod 14. The rotation of baffle 2 will stir the water inside box body 1, thereby simulating the situation of rapid current during heavy rain, so that the accuracy of prediction simulation is further improved; when slider 152 overcomes the elastic force of spring 153 and slides along groove 151, the volume in groove 151 is compressed, so that the pressure of liquid in groove 151 is higher than the pressure of water outside groove 151, so the water in groove 151 is discharged along air hole 154 after being squeezed, and the water flows discharged from two air holes 154 form a counter-attack, so that the water flows ejected from air hole 154 generate a reaction force on baffle 2 after the counter-attack, and then cooperate with the elastic force of spring 153 to increase the baffle 2 around the support rod 14. The swing angle of the plate improves the effect of the baffle 2 stirring the surrounding water, thereby improving the effect of the prediction device simulating the rapids during heavy rain; when the motor 16 drives the support rod 14 to move upward, the controller will also control the motor 16 to reverse, so that the support rod 14 drives the baffle 2 to swing back and forth, thereby further simulating the flow effect of water during heavy rain, and when the support rod 14 drives the baffle 2 to move downward, the two adjacent baffles 2 will also be close to each other under the action of the water flow, so that the two spring pieces 21 collide under the action of the corresponding baffles 2, so that the baffle 2 moves under the elastic force of the spring pieces 21, thereby improving the flow effect of the water driven by the baffle 2, and at the same time, the movement of the spring pieces 21 will drive the fins 22 to move The fin 22 will divert water during its movement, thereby improving the water flow effect; the protrusions 23 on the fin 22 will improve the water diversion effect of the fin 22; the blade 19 pulls the rope 18 to move around the roller 17, and the rope 18 drives the roller 17 to roll. After the roller 17 rolls, it will rotate along the screw rod 3, so that the roller 17 moves from one end of the screw rod 13 to the other end. The roller 17 will drive the rope 18 to move during its movement, and the rope 18 will drive the blade 19 to move during its movement, thereby simulating the effect of impurities in the water flow flowing after being impacted by rainwater, further improving the authenticity of the urban rainwater outlet drainage prediction, so that the accuracy of the rainstorm disaster assessment of the present invention is improved;The flange 181 on the outer wall of the wire rope 18 increases the friction between the wire rope 18 and the roller 17, thereby increasing the stability of the wire rope 18 driving the roller 17 to roll.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A rainstorm disaster assessment and prediction system, characterized by: It includes a server, a pressure sensor, a scattering turbidity meter and a prediction device; the server, the pressure sensor, the scattering turbidity meter and the prediction device are all connected through a network for data transmission; the server then processes and analyzes the data; the pressure sensor is used to sense the leakage of the outer wall of the pipeline, and the pressure sensor is laid around the pipeline; the scattering turbidity meter is used to detect the turbidity in the water; the prediction device is used to detect the drainage of the pipeline; The prediction device comprises a box (1), a baffle (2) and a controller; the box (1) has a circular cross-sectional shape, and two inner walls of the box (1) are provided with a slide groove (11); a slide rod (12) is fixedly connected between the two groove walls of one of the slide grooves (11), and a screw rod (13) is rotatably connected between the two groove walls of the other slide groove (11); a support rod (14) is provided between the two inner walls of the box (1); two baffles (2) are rotatably connected to the support rod (14); the baffles (2) are close to the bottom A limit block (15) is fixedly connected to one side of the box (1); two adjacent baffles (2) are parallel to each other and can block the bottom of the box body (1); one end of the support rod (14) is slidably connected to the slide rod (12), and the other end is threadedly connected to the screw rod (13); the rotation of the screw rod (13) can drive the support rod (14) to slide along the slide rod (12); a motor (16) is installed at the upper end of the box body (1); the output shaft of the motor (16) is connected to one end of the screw rod (13); the controller is used to control the automatic operation of the prediction device; A roller (17) is provided between the two inner walls of the box body (1); the central axis of the roller (17) is parallel to the central axis of the support rod (14), and the roller (17) is located directly above the corresponding baffle (2); a wire rope (18) is fixedly connected to a side of the baffle (2) close to the motor (16); the other end of the wire rope (18) passes around the roller (17) and is connected to a blade (19); the blades (19) are randomly distributed on the outer wall of the wire rope (18); A groove (151) is provided on a side of the limit block (15) away from the baffle (2); a slider (152) is slidably connected in the groove (151), and a spring (153) is also provided in the groove (151); one end of the spring (153) is connected to the bottom of the groove (151), and the other end is connected to the slider (152); A screw rod (3) is fixedly connected between the two inner walls of the box body (1); the central axis of the screw rod (3) is concentric with the central axis of the roller (17), and the screw rod (3) and the roller (17) are threadedly connected; a flange (181) is fixedly connected to the outer wall of the wire rope (18); the flange (181) is hemispherical in shape, and the flanges (181) are randomly distributed on the outer wall of the wire rope (18).

2. A rainstorm disaster assessment and prediction system according to claim 1, characterized in that: An air hole (154) is provided inside the limit block (15); one end of the air hole (154) is connected to the bottom of the groove (151), and the other end is connected to the outer wall of the limit block (15); the other ends of the air holes (154) in the two limit blocks (15) are arranged opposite to each other.

3. A rainstorm disaster assessment and prediction system according to claim 2, characterized in that: A spring sheet (21) is fixedly connected to a side of the baffle (2) close to the motor (16); a fin plate (22) is fixedly connected to the outer wall of the spring sheet (21); the end surface of the fin plate (22) is perpendicular to the horizontal plane during the movement of the baffle (2); protrusions (23) are provided on both side walls of the fin plate (22); and the cross-sectional shape of the protrusion (23) is triangular.

Images