Urban flood ponding prediction warning device

Abstract

The utility model discloses an urban flood ponding predicting and warning device which comprises a protective grating and a top supporting structure, the protective grating comprises an outer frame and a trash holding grating, and warning reflective strips are arranged on the surface of the trash holding grating; the jacking and supporting structure comprises a mounting pipe, a water conveying screw, an impeller, a hydraulic pipe, a jacking and supporting hydraulic rod and the like. When the water level of the drainage ditch rises to a specified threshold value, water flow impacts an impeller to drive a water conveying screw rod to rotate, so that the water flow enters a water fetching hole path, then a jacking hydraulic rod in a hydraulic pipe is pushed to rise to jack up a trash holding grating, a warning reflective strip is more striking, pedestrians and vehicles are reminded to pay attention to the water accumulation danger, meanwhile, the trash holding grating is lifted to enlarge a water flowing opening, and the water flowing opening is closed. The device does not depend on external electric power, is driven by water flow, avoids device failure caused by the electric power problem during flood disasters, improves reliability and stability, reduces the workload and cost of manual overhaul and maintenance, and is high in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of urban flood prevention, and specifically relates to a urban flood accumulation prediction warning device. BACKGROUND

[0002] With the acceleration of urbanization process, the city scale expands unceasingly, the hardening ground area increases greatly, rainwater infiltration is blocked, and the drainage system planning and construction are relatively lagging behind, so it is difficult to cope with the heavy rainfall caused by extreme weather. Every time the rainstorm attacks, the serious flood accumulation phenomenon appears in many places in the city, the flood not only causes the road to be flooded, the traffic to be paralyzed and the vehicle to be stranded, but also can cause the underground space to be reversed, endangering the safety of life and property of residents, such as subway station being flooded, basement water leading to goods damage, etc. The traditional flood warning method often has problems of not timely information acquisition, inaccurate warning range, etc. It cannot meet the needs of urban fine management and resident emergency refuge. Under this background, the urban flood accumulation prediction warning device emerges as the times require, aiming at providing strong support for urban flood control and disaster reduction by real-time monitoring and accurate prediction of the water accumulation situation through advanced technical means.

[0003] However, the conventional flood accumulation prediction warning device currently relies on sensors to monitor and accurately predict the water accumulation. However, the device is too dependent on power supply. When the flood disaster occurs, the connected lines and internal components may be disconnected, waterlogged, short-circuited, etc. at any time with the increase of the service life. In addition, these devices need to be regularly maintained by artificial maintenance, which greatly affects the actual use value.

[0004] Therefore, the utility model provides a urban flood accumulation prediction warning device to solve the above problems. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the utility model provides a urban flood accumulation prediction warning device to solve the above problems.

[0006] To achieve the above purpose, the utility model is implemented by the following technical scheme: a urban flood accumulation prediction warning device, comprising a protective grid, characterized in that: the lower surface of the protective grid is connected with a top support structure through a movable connecting piece.

[0007] The top support structure comprises a mounting pipe, a water delivery screw is rotatably arranged in the mounting pipe, and the lower end of the water delivery screw extends out of the mounting pipe to be fixed to an impeller located directly below through a bearing frame, the lower end of the mounting pipe is connected to the outside environment through a through hole, a water hitting hole path is arranged in the upper portion of the mounting pipe and is connected to the space where the water delivery screw is located, the hole path ports on the left and right sides of the water hitting hole path are rotatably connected to the ball end of a hydraulic pipe through a ball seat, a water inlet hole path is arranged in the hydraulic pipe, and a top support hydraulic rod is slidably and sealingly arranged in the hydraulic pipe, and the upper end of the top support hydraulic rod is movably connected to the lower surface of the trash screen grid and is close to the intersection of the two trash screen grids through a connecting piece.

[0008] Preferably, the protective grid comprises an outer frame, two trash screen grids are connected to the frame body of the outer frame through bolts, the trash screen grids are symmetrically distributed in the frame body of the outer frame, and warning reflective strips are attached to the surfaces of the trash screen grids.

[0009] Preferably, each trash screen grid comprises a fixed plate connected to the outer frame, a hinged connecting piece and a trash screen plate, the fixed plate and the trash screen plate are connected through the hinged connecting piece, and the lower surface of the trash screen plate is provided with a slope that gradually decreases in thickness from one side connected to the fixed plate to the opposite side and is inclined upward.

[0010] Preferably, the mounting pipe is arranged directly below the intersection of the two trash screen grids and is fixed in the drainage ditch through a support.

[0011] Preferably, the impeller is located at a position of a specified drainage water surface threshold of the drainage ditch.

[0012] Preferably, the water hitting hole path is cross-shaped, and a pressure relief valve is arranged in the hole path inside the mounting pipe.

[0013] Preferably, the water inlet hole path is arranged along the axis and penetrates the hydraulic pipe, and the lower end of the water inlet hole path is arranged in a fan shape according to the rotation direction of the hydraulic pipe when the hydraulic pipe pushes the trash screen grid upward.

[0014] Advantages

[0015] The utility model provides a kind of urban floodwater prediction warning device. Compared with prior art, the following advantages are achieved:

[0016] (1), the city waterlogging prediction warning device, through the cooperation of top support structure and protective grid, when the water level rises to the specified threshold, the warning reflective strip on the trash screen is more eye-catching because the trash screen is lifted. Compared with the traditional warning device, this dynamic warning method can more effectively attract the attention of pedestrians and vehicles, even in bad weather conditions, people can be reminded of the danger of waterlogging in time, reduce the possibility of traffic accidents, ensure road traffic safety, at the same time, the water flow drives the impeller to rotate, and then drives the water conveying screw to work, the whole running process does not depend on external power supply, compared with the conventional waterlogging prediction warning device which depends on electricity, the device failure caused by power failure, water inlet, short circuit and other problems in the process of waterlogging disaster is avoided, the reliability and stability of the device are greatly improved, the device can still work normally in the extreme waterlogging environment, the workload and cost of artificial regular maintenance are greatly reduced, the long-term use cost is reduced, and the practicability of the device is improved.

[0017] (2), the city waterlogging prediction warning device, in the process of water level rising, the trash screen is lifted upward to increase the water flow opening, on the one hand, it can effectively avoid the accumulation of small sundries at the trash screen, prevent the blockage from affecting the normal drainage, and ensure that the drainage system can continue to operate efficiently; on the other hand, compared with the traditional fixed structure of drainage grid, the increased drainage opening can improve the drainage speed, quickly drain more water in a short time, relieve the urban waterlogging pressure, and reduce the influence of waterlogging on urban infrastructure and residents' life. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the external structure perspective view of the utility model;

[0019] Figure 2 is the structure section view of the utility model;

[0020] Figure 3 is the top support structure split view of the utility model;

[0021] Figure 4 is the Figure 2 enlarged view of A in the figure.

[0022] In the figure: 1, protective grid; 11, outer frame; 12, trash screen; 2, top support structure; 21, installation pipe; 211, water punching hole; 22, water conveying screw; 221, impeller; 23, hydraulic pipe; 231, water inlet hole; 24, top support hydraulic rod. DETAILED DESCRIPTION

[0023] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0024] Please refer to Figures 1-4 The urban floodwater prediction and warning device comprises a protective grid 1, and a top supporting structure 2 is connected to the lower surface of the protective grid 1 through a movable connecting piece.

[0025] The protective grid 1 comprises an outer frame 11, two pollution blocking grids 12 are connected to the inside of the frame body of the outer frame 11 through bolts, and the pollution blocking grids 12 are symmetrically distributed inside the outer frame 11, and warning reflective strips are attached to the surfaces of the pollution blocking grids 12, each pollution blocking grid 12 is composed of a fixed plate connected to the outer frame 11, a hinged connecting piece and a pollution blocking plate, wherein the fixed plate and the pollution blocking plate are connected through the hinged connecting piece, and the lower surface of the pollution blocking plate is provided as an inclined surface with gradually decreasing thickness from one side connected to the fixed plate to the opposite side and inclined upward.

[0026] The top supporting structure 2 comprises a mounting pipe 21, the mounting pipe 21 is vertically arranged directly below the intersection position of the two pollution blocking grids 12 and is fixed inside the drainage ditch through a support, a water conveying screw 22 is rotatably arranged inside the mounting pipe 21, the lower end of the water conveying screw 22 extends out of the mounting pipe 21 to be fixed with an impeller 221 located directly below through a bearing frame, and the impeller 221 is located at a specified drainage water surface threshold position of the drainage ditch, the lower end of the mounting pipe 21 is connected to the outside environment through a through hole, a water hitting hole path 211 is arranged above the inside of the mounting pipe 21 and is connected to the space where the water conveying screw 22 is located, and the water hitting hole path 211 is cross-shaped, wherein a pressure relief valve is arranged inside the hole path penetrating through the mounting pipe 21 upward, the hole path ports penetrating through the mounting pipe 21 to the left and right sides are rotatably connected to the ball end of a hydraulic pipe 23 through a ball seat, a water inlet hole path 231 is arranged inside the hydraulic pipe 23, the water inlet hole path 231 penetrates through the inside of the hydraulic pipe 23 along the axis, and the lower end of the water inlet hole path 231 is arranged as a fan shape according to the rotating direction of the hydraulic pipe 23 when the hydraulic pipe 23 upwardly supports the pollution blocking grid 12, a top supporting hydraulic rod 24 is slidably and sealingly arranged inside the hydraulic pipe 23, and the upper end of the top supporting hydraulic rod 24 is movably connected to the lower surface of the pollution blocking grid 12 near the intersection position of the two pollution blocking grids 12 through a connecting piece.

[0027] When working, the water level of the drainage ditch rises to the specified threshold, and the water flow impacts the impeller 221 to drive the water conveying screw 22 to rotate. Since the lower end of the installation pipe 21 is connected to the outside, the water flow enters the cross-shaped water punching hole path 211 under the action of the screw. When the water pressure is too high, the pressure relief valve opens to release pressure. The water flow enters the hydraulic pipe 23 through the two side hole paths, pushes the top hydraulic rod 24 to rise, and makes the trash screen 12 rotate around the hinge, lifts the trash plate, and the reflective strip on the surface warns pedestrians and vehicles, and also increases the flow opening to prevent congestion. When the water level drops, the speed of the impeller 221 decreases, the screw rotates slowly, the water pressure of the hydraulic pipe 23 decreases, the top hydraulic rod 24 descends under the action of gravity, and the trash screen 12 returns to the original position.

[0028] In summary, through the cooperative operation of the top support structure 2 and the protective screen 1, when the water level rises to the specified threshold, the warning reflective strip on the trash screen 12 is more eye-catching due to the lifting of the trash plate. Compared with traditional warning devices, this dynamic warning method can more effectively attract the attention of passing pedestrians and vehicles. Even in adverse weather conditions, it can also timely remind people of the danger of accumulated water, reduce the possibility of traffic accidents, and ensure road traffic safety. At the same time, the water flow drives the impeller 221 to rotate, and then drives the water conveying screw 22 to work. The entire operation process does not rely on external power supply. Compared with conventional power-dependent floodwater prediction warning devices, the device avoids failure due to power failure, water ingress, short circuit, and other problems when a flood disaster occurs, greatly improves the reliability and stability of the device, and makes it still function normally in extreme flood conditions. It greatly reduces the workload and cost of regular maintenance, reduces long-term use costs, improves the practicality of the device; during the water level rising process, the trash screen 12 is lifted upward to increase the flow opening. On the one hand, it effectively avoids the accumulation of small debris at the trash screen 12, prevents blockage from affecting normal drainage, and ensures that the drainage system can continue to operate efficiently. On the other hand, compared with the traditional fixed structure of the drainage screen, the increased drainage opening can increase the drainage speed, quickly drain more accumulated water in a short time, relieve urban waterlogging pressure, and reduce the impact of accumulated water on urban infrastructure and residents' lives.

[0029] Meanwhile, the contents not described in detail in the specification are all existing technologies known to those skilled in the art.

[0030] Working principle: when the water level in the drainage ditch rises to the specified drainage water surface threshold (referring to the height of the torrent water surface in the flood drainage of the drainage ditch, which can be set according to the comprehensive judgment of the design parameters of the drainage ditch, the maximum safe flow and the geographical environment), the water flow in the torrent state of flood impacts the impeller 221, so that the impeller 221 rotates, and the water conveying screw 22 is driven to rotate in the installation pipe 21. Since the lower end of the installation pipe 21 is connected with the outside, the water flow flows upward under the action of the water conveying screw 22, enters the water hitting hole path 211, and the water hitting hole path 211 is cross-shaped. The upward hole path is provided with a pressure relief valve. When the internal water pressure is too high, the pressure relief valve opens to release pressure, so as to ensure the safety of the device. The water flow enters the hydraulic pipe 23 through the left and right hole paths. The water inlet hole path 231 in the hydraulic pipe 23 penetrates along the axis, and the lower end is fan-shaped. The water flow enters to push the top hydraulic rod 24 to move upward. Since the upper end of the top hydraulic rod 24 is movably connected to the lower surface of the trash screen 12 near the intersection position, and the trash screen 12 is composed of a fixed plate, a hinged connecting piece and a trash plate, the lower surface of the trash plate is an inclined upward slope, and the rising of the top hydraulic rod 24 will make the trash screen 12 rotate around the hinged connecting piece, and the trash plate is lifted upward. The warning reflective strip on the surface of the trash screen 12 is more eye-catching during the lifting process, which plays a warning role for passing pedestrians and vehicles, reminds them of the existence of water accumulation danger, increases the opening of the water flow, and avoids the accumulation of small sundries to cause congestion of the trash screen 12 and affect the normal drainage.

[0031] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or equipment.

[0032] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for predicting and warning of urban floodwater accumulation, comprising a protective grid (1), characterized in that: The lower surface of the protective grid (1) is connected with the top support structure (2) through a movable connector; The top support structure (2) comprises a mounting pipe (21), a water delivery screw (22) is rotatably arranged in the mounting pipe (21), and the lower end of the water delivery screw (22) extends out of the mounting pipe (21) to cooperate with a bearing frame and a vane (221) located directly below; the lower end of the mounting pipe (21) is connected with the outside environment through a through hole, a water hole path (211) is arranged on the upper side of the mounting pipe (21) and communicates with the space where the water delivery screw (22) is located; the hole path ports on the left and right sides of the water hole path (211) are rotatably connected with the ball end of a hydraulic pipe (23) through a ball seat; a water inlet hole path (231) is arranged in the hydraulic pipe (23); a top support hydraulic rod (24) is slidably and sealingly arranged in the hydraulic pipe (23), and the upper end of the top support hydraulic rod (24) is movably connected to the lower surface of the trash grid (12) and close to the intersection of the two trash grids (12) through a connecting piece.

2. The urban floodwater accumulation forecasting and warning device according to claim 1, characterized in that: The protective grid (1) comprises an outer frame (11), two trash grids (12) are connected to the frame body of the outer frame (11) through bolts, and the trash grids (12) are symmetrically distributed inside the outer frame (11), and warning reflective strips are attached to the surfaces of the trash grids (12).

3. The urban floodwater accumulation forecasting and warning device according to claim 1, characterized in that: Each trash grid (12) is composed of a fixed plate connected to the outer frame (11), a hinged connector and a trash plate, wherein the fixed plate and the trash plate are connected through the hinged connector, and the lower surface of the trash plate is provided with a slope that gradually decreases in thickness from one side connected to the fixed plate to the opposite side and inclines upward.

4. The urban floodwater accumulation forecasting and warning device according to claim 1, characterized in that: The mounting pipe (21) is arranged directly below the intersection of the two trash grids (12) and is fixed in the drainage ditch through a support.

5. The urban floodwater accumulation forecasting and warning device according to claim 1, characterized in that: The vane (221) is located at a position of a specified drainage water surface threshold of the drainage ditch.

6. The urban floodwater accumulation forecasting and warning device according to claim 1, characterized in that: The water hole path (211) is cross-shaped, wherein a pressure relief valve is installed in the hole path inside the mounting pipe (21).

7. The urban floodwater accumulation forecasting and warning device according to claim 1, characterized in that: The water inlet hole path (231) penetrates the hydraulic pipe (23) along the axis, and the lower end of the water inlet hole path (231) is opened in a fan shape according to the direction of rotation when the hydraulic pipe (23) upwardly supports the trash grid (12).

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