A device for monitoring and preventing blockages and waterlogging in urban areas.

Abstract

A clog-resistant urban flooding monitoring device includes a pressure detection port and a monitoring body. The pressure detection port is vertically positioned at the bottom of the monitoring body, and its top is detachably connected to the bottom. The bottom of the pressure detection port has a water inlet and a sponge filter screen, with the sponge filter screen built into the water inlet. The pressure detection port has an arrow-shaped structure with an inner and outer double-layer funnel design. This invention, by vertically positioning the pressure detection port and using an arrow-shaped structure with an inner and outer double-layer funnel design, effectively prevents sediment deposition and clogging, significantly reducing the false alarm rate. The pressure detection port and the monitoring body are quickly detachable, supporting rapid disassembly and maintenance, thus reducing operation and maintenance costs and workload.

Description

Technical Field

[0001] This utility model relates to the technical field of urban flooding monitoring equipment, and in particular to an anti-blockage urban flooding monitoring equipment applicable to scenarios such as urban road flooding and tunnel flooding. Background Technology

[0002] With the rapid advancement of urbanization in my country, urban flooding has become an increasingly prominent problem. In urban drainage and flood control, water accumulation monitoring is a crucial link. Water accumulation monitoring equipment is widely used in various water accumulation monitoring scenarios due to its low cost, fast response speed, and convenient installation. Existing pressure-type water accumulation monitors have a pressure detection port fixed at the bottom. This port is either vertical or horizontally columnar, and the inner wall of the channel in these ports is designed to be flat. However, the existing pressure detection structure has the following shortcomings during use:

[0003] 1) The detection port has a large open area, and the inner wall of the detection port channel is mostly designed with a straight surface, lacking an effective flow guiding and anti-siltation structure. Water or silt easily accumulates on the inner wall of the detection port. When water carrying silt, fallen leaves and other impurities flows through the detection port, the impurities are easy to deposit on the inner wall of the detection port channel. After long-term use, they will gradually accumulate and block the pressure detection port of the monitor. After rain, the silt clumps expand after being exposed to the sun, generating pressure on the detection port. This causes the pressure sensor of the pressure-type water accumulation monitor to be unable to accurately detect the water pressure, which in turn leads to false alarms (such as the pressure signal generated by the accumulation of silt when there is no water accumulation, leading to a false judgment of water accumulation) or missed alarms (such as the pressure signal not being transmitted due to silt blockage when there is water accumulation).

[0004] 2) The components of traditional detection ports are mostly fixed connections. When siltation or sensor failure occurs, the entire monitor needs to be disassembled for cleaning or replacement. This requires the use of special tools to disassemble multiple components, which is cumbersome and time-consuming. This not only increases labor costs but also prolongs equipment downtime, increasing maintenance costs and workload. Utility Model Content

[0005] In view of this, in order to solve the technical problems existing in the prior art, this utility model provides a waterlogging monitoring device with a vertically arranged pressure detection port, an arrow-shaped structure with an inner and outer double-layer funnel combination, which can effectively prevent sediment deposition and blockage, significantly reduce false alarm rate, and has a spiral disassembly structure for easy disassembly and connection between the pressure detection port and the main body of the monitor, supports quick disassembly and maintenance, and reduces operation and maintenance costs and workload.

[0006] The present invention solves the above-mentioned technical problems through the following technical solution:

[0007] A waterlogging monitoring device for preventing blockages, comprising a pressure detection port and a monitoring body, wherein the pressure detection port is vertically disposed at the bottom of the monitoring body, the top of the pressure detection port is detachably connected to the bottom of the monitoring body, the bottom of the pressure detection port is provided with a water inlet and a sponge filter screen, the sponge filter screen being built into the water inlet, and the pressure detection port having an arrow-shaped structure with an inner and outer double-layer funnel combination.

[0008] Furthermore, the inner and outer double-layer funnel includes an outer positive funnel and an inner reverse funnel. The inner reverse funnel is nested inside the outer positive funnel to form an integrated structure. The end of the inner reverse funnel is provided with a spiral detachable structure. The bottom of the monitor body is provided with a pressure sensing interface. The inner reverse funnel is threadedly connected to the pressure sensing interface of the monitor body through the spiral detachable structure to realize the detachable connection between the pressure detection port and the monitor body.

[0009] Furthermore, the spiral disassembly structure includes a female screw located at the end of the inner anti-funnel and a male screw located outside the air pressure sensing interface of the monitor body. The male screw outside the air pressure sensing interface is threadedly connected to the female screw of the inner anti-funnel, so that the air pressure sensing interface is connected to the pressure detection port.

[0010] Furthermore, the inner cavity surface of the inner reverse funnel and the outer surface surface of the outer positive funnel are both formed with smooth conical surfaces, and the outer positive funnel and the inner reverse funnel are coaxially arranged.

[0011] Furthermore, the outer wall of the outer positive funnel is coated with a hydrophobic coating.

[0012] Furthermore, the hydrophobic coating is a polytetrafluoroethylene coating or a nano-silica hydrophobic coating.

[0013] Furthermore, the main body of the monitor is equipped with a control module and a miniature pressure sensor. The miniature pressure sensor is installed at the end of the inner anti-funnel and is electrically connected to the control module.

[0014] Furthermore, the cone apex of the inner anti-funnel is coaxially arranged with the water inlet to form a water flow channel, which is directly aligned with the miniature pressure sensor at the end of the inner anti-funnel.

[0015] Compared with the prior art, the technical solution of this utility model has at least the following beneficial effects:

[0016] 1) The waterlogging monitoring device of this utility model includes a pressure detection port and a monitoring body. The pressure detection port is vertically installed at the bottom of the monitoring body, and the top of the pressure detection port is detachably connected to the bottom of the monitoring body. The bottom of the pressure detection port is equipped with a water inlet and a sponge filter screen, with the sponge filter screen built into the water inlet. The pressure detection port has an arrow-shaped structure with an inner and outer double-layer funnel combination. This utility model sets the pressure detection port vertically as a whole, and the pressure detection port adopts an arrow-shaped structure with an inner and outer double-layer funnel combination, which can effectively prevent silt deposition and blockage, significantly reduce the false alarm rate, and the pressure detection port can be quickly disassembled and connected to the monitoring body, supporting quick disassembly and maintenance, reducing operation and maintenance costs and workload.

[0017] 2) This utility model's double-layered funnel includes an outer positive funnel and an inner reverse funnel. The inner reverse funnel is nested inside the outer positive funnel to form an integrated structure. The end of the inner reverse funnel has a screw-type detachable structure. The bottom of the monitor body has a pressure sensing interface. The inner reverse funnel is threadedly connected to the pressure sensing interface of the monitor body through the screw-type detachable structure, thereby achieving a detachable connection between the pressure detection port and the monitor body. The double-layered funnel and the pressure sensing interfaces of both monitor bodies can be quickly disassembled and connected by screwing, facilitating the replacement or cleaning of the pressure detection port.

[0018] 3) This invention sets the cone apex of the inner anti-funnel coaxially with the water inlet to form a water flow channel, which is directly aligned with the miniature pressure sensor at the end of the inner anti-funnel. This ensures that the water pressure can be accurately transmitted to the miniature pressure sensor along the water flow channel, avoiding pressure loss or deviation during transmission.

[0019] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, the following detailed description is provided in conjunction with preferred embodiments and accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the waterlogging monitoring device of this utility model;

[0021] Figure 2 This utility model Figure 1 Enlarged detail diagram of section A in the middle;

[0022] Figure 3 This utility model Figure 2 Exploded view of the medium pressure detection port and the main body of the monitor.

[0023] In the diagram: pressure detection port 1, inner and outer double-layer funnel 11, outer positive funnel 111, inner reverse funnel 112, sponge filter 12, spiral disassembly structure 13, female screw 131, male screw 132, monitor body 2, air pressure sensing interface 21, control module 22, miniature pressure sensor 23, wire 24. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings, which form part of this specification. The principles of the present invention will be illustrated through embodiments, and other aspects, features, and advantages of the present invention will become apparent from this detailed description. In the accompanying drawings, the same or similar parts in different figures are indicated by the same reference numerals.

[0025] like Figures 1-3 As shown, this utility model provides a waterlogging monitoring device to prevent blockage. The waterlogging monitoring device includes a pressure detection port 1 and a monitoring body 2. The pressure detection port 1 is vertically installed at the bottom of the monitoring body 2. The top of the pressure detection port 1 is detachably connected to the bottom of the monitoring body 2. The bottom of the pressure detection port 1 is provided with a water inlet and a sponge filter 12. The sponge filter 12 is built into the water inlet. The pressure detection port 1 has an arrow-shaped structure with inner and outer double-layer funnels 11. This invention vertically positions the pressure detection port 1 on the main body 2 of the monitor, allowing water to flow smoothly into the pressure detection port 1 along the direction of gravity, reducing the pushing effect of lateral water flow on sediment deposition. An inlet is provided at the bottom of the pressure detection port 1, facilitating the entry of water into the port. The pressure detection port 1 adopts an arrow-shaped structure with inner and outer double-layer funnels 11. Based on fluid dynamics principles, water carrying sediment enters from the inlet at the bottom of the pressure detection port 1. Under the influence of gravity, the water flows along the smooth conical surface of the inner and outer double-layer funnels 11. Most of the sediment is difficult to deposit on the inclined surface of the inner and outer double-layer funnels 11 and will be discharged again with the water flow, avoiding sediment deposition and greatly reducing the risk of blockage in the pressure detection port 1. Furthermore, the pressure detection port 1 is covered with a sponge filter 12 throughout the inlet area. The sponge filter 12 can initially filter large particles of sediment and debris (such as leaves and pebbles) in the entering water, preventing them from directly entering the water flow channel of the pressure detection port 1 and causing blockage.

[0026] In this specific implementation, the outer positive funnel 111 and the inner reverse funnel 112 are made of stainless steel. Specifically, the outer positive funnel 111 and the inner reverse funnel 112 are preferably made of 304 or 316 stainless steel, possessing good structural strength and corrosion resistance. Both inner and outer funnels 11 are made of stainless steel, combined with a hydrophobic coating, which not only provides excellent corrosion resistance, resisting the erosion of acidic and alkaline substances in rainwater and sewage, but also prevents silt and sand from wearing down the surface, extending the service life of the entire pressure detection port 1. Specifically, the sponge filter 12 is made of high-density polyurethane sponge, preferably with a pore size of 0.5-1mm. This can filter large particles of silt, fallen leaves, and other impurities in the accumulated water, preventing impurities from entering the channels of the inner and outer double-layer funnels 11 and avoiding blockage of the pressure transmission path. At the same time, the sponge material has a certain degree of elasticity and permeability, so it will not affect the normal inflow of water or pressure transmission.

[0027] In specific implementation, the double-layered funnel 11 of this utility model includes an outer positive funnel 111 and an inner reverse funnel 112. The inner reverse funnel 112 is nested inside the outer positive funnel 111 to form an integrated structure. The end of the inner reverse funnel 112 is provided with a spiral detachable structure 13. The bottom of the monitor body 2 is provided with a pressure sensing interface 21. The inner reverse funnel 112 is threadedly connected to the pressure sensing interface 21 of the monitor body through the spiral detachable structure 13 to achieve a detachable connection between the pressure detection port 1 and the monitor body 2. The spiral detachable structure 13 includes a female screw 131 located at the end of the inner reverse funnel 112 and a male screw 132 located outside the pressure sensing interface 21 of the monitor body. The male screw 132 outside the pressure sensing interface 21 is threadedly connected to the female screw 131 of the inner reverse funnel 112 to connect the pressure sensing interface 21 with the pressure detection port 1. This invention features a female screw 131 at the end of the inner anti-funnel 112 of the pressure detection port 1, and a corresponding air pressure sensing interface 21 extending from the bottom of the monitor body. A male screw 132 is provided on the outside of the air pressure sensing interface 21. The two are connected detachably by threaded engagement, facilitating the replacement or cleaning of the pressure detection port 1. Maintenance personnel can disassemble, clean, or replace parts of the pressure detection port 1 without special tools. During maintenance, it can be removed simply by rotating the inner and outer double-layer funnels 11, without the need to disassemble the entire waterlogging monitoring device. This greatly reduces the difficulty and time cost of on-site maintenance and significantly improves the flexibility and practicality of the equipment compared to the traditional fixed structure.

[0028] In this embodiment, a waterproof encapsulation structure is provided at the connection between the air pressure sensing interface 21 and the inner anti-funnel 112. The air pressure sensing interface 21 adopts a waterproof encapsulation structure, preferably a nitrile rubber sealing ring. A nitrile rubber sealing ring is provided at the threaded connection of the air pressure sensing interface 21 to prevent water from seeping into the monitor body from the connection gap, thus ensuring the electrical safety of the monitor body.

[0029] This invention features smooth conical surfaces formed on the inner cavity surface of the inner reverse funnel 112 and the outer surface of the outer positive funnel 111. The outer positive funnel 111 and the inner reverse funnel 112 are coaxially arranged. A hydrophobic coating is applied to the outer wall of the outer positive funnel 111. This hydrophobic coating is either a polytetrafluoroethylene coating or a nano-silica hydrophobic coating. In practice, the inner reverse funnel 112 is coaxially arranged inside the outer positive funnel 111, and the structure of the inner reverse funnel 112 is reversed compared to the outer positive funnel 111—that is, the cone apex faces upward and the cone base faces downward, forming an "arrowhead-shaped" double-nested structure. The outer positive funnel 111 has its cone apex facing downwards and its cone base facing upwards. The outer positive funnel 111 is made of hydrophobic coated stainless steel, with a hydrophobic coating sprayed onto the surface of the stainless steel substrate. The outer positive funnel 111 has a smooth conical surface structure. The hydrophobic coating allows water to slide quickly off the surface of the funnel, preventing water stagnation and sediment deposition. The smooth conical surface of the outer positive funnel 111 reduces the surface area for sediment adhesion, further reducing the probability of deposition. The inner cavity of the inner reverse funnel 112 has a smooth conical surface. Designed based on fluid dynamics principles, water will flow along the smooth conical surface of the inner reverse funnel 112 under the action of gravity. This guides the water to flow quickly along the conical surface, reducing the residence time of water on the surface and preventing sediment and impurities from adhering to the inner reverse funnel 112, further reducing siltation.

[0030] In this embodiment of the invention, a control module 22 and a miniature pressure sensor 23 are provided inside the monitor body 2. The miniature pressure sensor 23 is installed at the end of the inner anti-funnel 112 and is electrically connected to the control module 22. Specifically, the miniature pressure sensor 23 is located above the cone-shaped opening of the inner anti-funnel 112. A wire 24 is provided between the control module 22 and the miniature pressure sensor 23, and the miniature pressure sensor 23 is electrically connected to the control module 22 through the wire 24. The miniature pressure sensor 23 is an integrated pressure sensor of model MPX5100, and the control module 22 is a microcontroller of model STM32F103. The control module 22 is connected to the control module 22 inside the monitor body 2 through the wire 24. The miniature pressure sensor 23 converts the detected water pressure signal into an electrical signal and sends it to the control module 22. The control module 22 serves the functions of data storage, transmission, or early warning.

[0031] In this invention, the conical apex of the inner anti-funnel 112 is coaxially arranged with the water inlet to form a water flow channel, which is directly aligned with the miniature pressure sensor 23 at the end of the inner anti-funnel 112. This ensures that the water pressure can be accurately transmitted to the miniature pressure sensor 23 along the water flow channel, avoiding pressure loss or deviation during transmission. Simultaneously, the waterproof encapsulation structure of the air pressure sensing interface 21 prevents rainwater and accumulated water from seeping in, preventing signal drift of the miniature pressure sensor 23 due to moisture. Furthermore, the hydrophobic coating and the inner and outer double-layer funnel 11 design reduce the coverage of sediment on the sensing surface of the miniature pressure sensor 23, ensuring that the miniature pressure sensor 23 can always accurately respond to changes in water pressure, thus improving monitoring accuracy.

[0032] The process of water accumulation detection using waterlogging monitoring equipment:

[0033] When there is water accumulation, the water flows in from the water inlet at the bottom of the pressure detection port 1 of the monitor body, and first passes through the sponge filter 12 to filter out large particles of impurities.

[0034] Then, some of the accumulated water flows upward along the smooth conical surface of the outer positive funnel 111, while the other part of the accumulated water enters the water flow channel of the inner reverse funnel 112, transmitting the pressure to the miniature pressure sensor 23 at the end of the inner reverse funnel 112.

[0035] Finally, the miniature pressure sensor 23 converts the pressure signal into an electrical signal and transmits it to the control module 22 to complete the detection of the water pressure.

[0036] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A clog-resistant internal flooding monitoring device, characterized by: The waterlogging monitoring device includes a pressure detection port and a monitoring body. The pressure detection port is vertically installed at the bottom of the monitoring body. The top of the pressure detection port is detachably connected to the bottom of the monitoring body. The bottom of the pressure detection port is provided with a water inlet and a sponge filter screen. The sponge filter screen is built into the water inlet. The pressure detection port is an arrow-shaped structure with an inner and outer double-layer funnel combination.

2. The anti-clogging inland inundation monitoring device according to claim 1, characterized in that: The inner and outer double-layer funnel includes an outer positive funnel and an inner reverse funnel. The inner reverse funnel is nested inside the outer positive funnel to form an integrated structure. The end of the inner reverse funnel is provided with a spiral detachable structure. The bottom of the monitor body is provided with a pressure sensing interface. The inner reverse funnel is threadedly connected to the pressure sensing interface of the monitor body through the spiral detachable structure to realize the detachable connection between the pressure detection port and the monitor body.

3. The anti-clogging inland flooding monitoring device of claim 2, wherein: The spiral disassembly structure includes a female screw located at the end of the inner anti-funnel and a male screw located outside the air pressure sensing interface of the monitor body. The male screw outside the air pressure sensing interface is threadedly connected to the female screw of the inner anti-funnel, so that the air pressure sensing interface is connected to the pressure detection port.

4. The anti-clogging inland inundation monitoring device according to claim 3, characterized in that: The inner cavity surface of the inner reverse funnel and the outer surface of the outer positive funnel are both formed with smooth conical surfaces, and the outer positive funnel and the inner reverse funnel are coaxially arranged.

5. The anti-clogging inland flooding monitoring device of claim 4, wherein: The outer wall of the outer positive funnel is coated with a hydrophobic coating.

6. The anti-clogging inland flooding monitoring device of claim 5, wherein: The hydrophobic coating is a polytetrafluoroethylene coating or a nano-silica hydrophobic coating.

7. The anti-clogging inland flooding monitoring device of claim 1, wherein: The main body of the monitor is equipped with a control module and a miniature pressure sensor. The miniature pressure sensor is installed at the end of the inner anti-funnel and is electrically connected to the control module.

8. The anti-clogging inland inundation monitoring device according to claim 2, characterized in that: The cone apex of the inner anti-funnel is coaxially arranged with the water inlet to form a water flow channel, which is directly aligned with the miniature pressure sensor at the end of the inner anti-funnel.

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