Flood-prevention emergency drainage device

Abstract

This application discloses a flood control emergency drainage device, belonging to the field of drainage equipment. The device includes a mobile base and a water pump mounted on the base. The water pump has an inlet pipe connected to its input end and an outlet pipe connected to its output end. A filter screen is installed at the bottom of the water pump. It also includes a battery and a control unit, with the control unit electrically connected to the battery and the water pump. The filter screen is hemispherical, wider at the bottom and narrower at the top. A concave hemispherical groove is provided on the bottom surface of the filter screen, and guide grooves communicating with the hemispherical grooves are provided on both sides of the filter screen. The inner walls of the guide grooves are convex arc-shaped. The hemispherical structure, combined with the hemispherical grooves and convex arc-shaped guide grooves, guides stones and suspended solids to slide and discharge along the curved surface, reducing blockages at the source and improving drainage continuity. The hemispherical structure increases the filtration area, allowing more water to pass through in the same amount of time, thus matching the drainage efficiency of the water pump.

Description

Technical Field

[0001] This application relates to the field of drainage equipment technology, specifically a flood control emergency drainage device. Background Technology

[0002] Disasters such as rainstorms and floods not only paralyze traffic and damage infrastructure, but may also trigger secondary safety accidents. Therefore, efficient flood control and emergency drainage technology has become a core component of the urban disaster prevention and mitigation system.

[0003] Currently, flood control emergency drainage devices, as key equipment for dealing with urban flooding, have become the mainstream solution for alleviating road flooding due to their rapid deployment, efficient drainage, and intelligent management. These devices typically integrate mobile pumping stations, pump sets, and control systems, enabling rapid site setup and drainage operation initiation, significantly improving emergency response efficiency. Among these, the pumps, as the core power component, directly determine the drainage effect through their operational stability, while impurity filtration in the inlet pipeline is a crucial step in ensuring pump safety.

[0004] In practical applications, urban road surface water has a complex composition, containing not only rainwater but also a large amount of suspended solids and impurities such as pebbles, silt, fallen leaves, and plastic fragments. To prevent these impurities from entering the pump body and causing impeller wear, jamming, or even shutdown, existing water pumps generally have a filter device installed at the end of the inlet pipe. Among them, cylindrical mesh filter screens are widely used due to their ease of manufacture and low cost.

[0005] However, in complex waterlogged environments, the aforementioned mature filtration solutions are prone to problems. When stones and fibrous suspended matter in the water come into contact with the cylindrical mesh filter screen, they easily adhere to the screen surface due to water flow impact and adsorption. Furthermore, as the operating time increases, impurities gradually clog the mesh channels, leading to a sharp reduction in water intake. This not only reduces pumping efficiency but may also cause motor overheating due to excessive pump load, and in severe cases, even interrupt the drainage operation.

[0006] Therefore, this application provides a flood control emergency drainage device to solve the above problems. Utility Model Content

[0007] This application provides a flood control emergency drainage device, which aims to solve the problems mentioned in the background art, such as the cylindrical mesh filter screen at the end of the water inlet pipe of the existing water pump being easily blocked by stones and suspended solids, resulting in reduced pumping efficiency, excessive pump load, or even interruption of drainage operation.

[0008] To achieve the above objectives, this application provides the following technical solution: a flood control emergency drainage device, comprising a mobile base and a water pump installed on the mobile base. The input end of the water pump is connected to an inlet pipe, and the output end is connected to an outlet pipe. A filter screen is provided at the bottom of the water pump. The device also includes a battery and a control unit, the control unit being electrically connected to the battery and the water pump. The filter screen is hemispherical, wider at the bottom and narrower at the top. A concave hemispherical groove is provided on the bottom surface of the filter screen. Guide grooves communicating with the hemispherical groove are provided on both sides of the filter screen, and the inner wall of the guide groove is convex. The hemispherical structure, with its wider bottom and narrower top, combined with the hemispherical groove and the convex guide groove, guides stones and suspended solids to slide and discharge along the curved surface, reducing blockages at the source and improving drainage continuity. The hemispherical structure increases the filtration area, allowing more water to pass through in the same amount of time, thus matching the drainage efficiency of the water pump.

[0009] Preferably, the filter screen is made of high-strength stainless steel with a pore size of 5mm. This ensures filtration accuracy while also providing impact resistance, corrosion resistance, and extending service life.

[0010] Preferably, the control unit is a PLC controller and a human-machine interface. The PLC controller has high reliability and flexible programming capabilities, and can accurately control the operating status of the water pump and electric actuator to achieve automated operation; the human-machine interface allows operators to set parameters, monitor equipment operating data in real time, and improve the intelligence level of emergency response.

[0011] Preferably, to facilitate the movement of the drainage device: a handle is fixedly connected to the end of the movable base away from the water pump, and an anti-slip sleeve is fixedly fitted on the handle. The handle provides a convenient point of force for moving the device, and in conjunction with the roller design of the movable base, a single person can push the device to the water accumulation point, improving deployment flexibility; the anti-slip sleeve increases the friction between the hand and the handle, preventing slippage during pushing and improving operational safety and comfort.

[0012] Preferably, to remove stones or suspended matter adsorbed on the filter screen: a retractable corrugated pipe is fixedly installed between the water inlet pipe and the filter screen; electric push rods electrically connected to the control unit are fixedly installed on both sides of the water inlet pipe; the output end of the electric push rod is fixedly connected to the bottom of the corrugated pipe. The electric push rod drives the filter screen to reciprocate up and down, using vibration to dislodge stubborn impurities, achieving an automatic cleaning function, reducing the frequency of manual cleaning, and ensuring continuous operation of the equipment.

[0013] Preferably, the corrugated pipe is made of high-strength PVC. High-strength PVC corrugated pipes can flexibly expand and contract with the movement of the filter screen, and also possess wear-resistant and anti-aging properties, making them suitable for use in humid environments.

[0014] Preferably, to prevent backflow of liquid in the inlet pipe: a positioning ring is fixedly connected inside the inlet pipe, and a rubber cap is hinged to the top of the positioning ring. The cooperation between the positioning ring and the rubber cap effectively prevents backflow of water in the inlet pipe, avoids a decrease in drainage efficiency due to backflow, and prevents impurities from re-entering the pump body with the backflowing sewage, thus protecting the impeller of the water pump from damage.

[0015] This application utilizes a hemispherical structure that is larger at the bottom and smaller at the top, combined with a hemispherical groove and a convex arc guide groove, to guide stones and suspended solids to slide and be discharged along the curved surface, thereby reducing blockages at the source and improving drainage continuity. The hemispherical structure increases the filtration area, allowing more water to pass through in the same amount of time, thus matching the drainage efficiency of the water pump.

[0016] This application uses an electric push rod to drive the filter screen to move up and down reciprocally, and uses vibration to remove stubborn impurities that have been adsorbed, thereby achieving an automatic cleaning function, reducing the frequency of manual cleaning, and ensuring continuous operation of the equipment.

[0017] This application effectively prevents backflow of water in the inlet pipe by using the positioning ring and the rubber cover, avoiding a decrease in drainage efficiency due to backflow, and preventing impurities from re-entering the pump body with the backflow sewage, thus protecting the impeller of the water pump from damage. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a flood control emergency drainage device; Figure 2 for Figure 1 A schematic diagram of the structure on the other side; Figure 3 This is a top view of the filter screen structure; Figure 4 This is a schematic diagram of the positioning ring and rubber cap inside the water inlet pipe.

[0019] In the picture: 1. Base; 2. Water pump; 21. Inlet pipe; 22. Outlet pipe; 3. Filter screen; 31. Hemispherical groove; 32. Guide groove; 4. Battery; 5. Control unit; 6. Handle; 61. Anti-slip sleeve; 7. Corrugated pipe; 71. Electric push rod; 8. Positioning ring; 81. Rubber cover. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] Example 1 This embodiment provides a flood control emergency drainage device, such as... Figure 1-4 As shown, the drainage device includes a movable base 1 and a water pump 2 mounted on the movable base 1. The water pump 2 has an inlet pipe 21 connected to its input end and an outlet pipe 22 connected to its output end. A filter screen 3 is installed at the bottom of the water pump 2. A motor drives the impeller inside the pump body to rotate at high speed, creating a negative pressure in the inlet pipe 21. Under atmospheric pressure, the accumulated water is filtered through the filter screen 3 and enters the inlet pipe 21. The impeller's centrifugal force then pressurizes the water, discharging it along the outlet pipe 22. The flow rate and head parameters ensure sufficient drainage capacity and conveying distance per unit time. The water pump 2 is model XBD10 / 20 with a flow rate of 20 m³ / h. 3 / h, with a head of 10m.

[0022] It also includes a battery 4 and a control unit 5. The control unit 5 is electrically connected to the battery 4 and the water pump 2. The battery 4 serves as a backup power source, providing power to the water pump 2, control unit 5, and electric actuator 71 in emergency scenarios where no external power is available. This ensures that the equipment can start without relying on a fixed power supply, improving deployment flexibility and emergency response capabilities. The battery 4 pre-stores electrical energy, which is distributed to various electrical components through the circuitry of the control unit 5. When the external power supply is interrupted, it automatically switches to the battery 4 power supply mode, ensuring the continuous operation of the core functions of the equipment.

[0023] The filter screen 3 is hemispherical, wider at the bottom and narrower at the top. A concave hemispherical groove 31 is provided on the bottom surface of the filter screen 3. Guide grooves 32, connected to the hemispherical groove 31, are provided on both sides of the filter screen 3, and the inner wall of the guide grooves 32 is convex. This hemispherical structure, combined with the hemispherical groove 31 and the convex guide grooves 32, guides stones and suspended solids to slide and discharge along the curved surface, reducing clogging at its source and improving drainage continuity. The hemispherical structure increases the filtration area, allowing more water to pass through in the same amount of time, thus matching the drainage efficiency of the water pump 2. Under the suction of the water pump 2, water carrying impurities enters the hemispherical groove 31. Because the surface of the hemispherical groove 31 is smooth and at an inclined angle, the impurities slide upwards along the curved surface under the force of gravity and water flow. Upon reaching the top, they enter the guide grooves 32, which further guide the impurities obliquely upwards and outwards, preventing impurities from clogging the mesh.

[0024] Filter screen 3 is made of high-strength stainless steel with a pore size of 5mm. It ensures filtration accuracy (intercepting impurities with a diameter > 5mm) while also being impact-resistant, corrosion-resistant, and extending its service life.

[0025] Control unit 5 consists of a PLC controller and a human-machine interface (HMI). The model is S7-200SMART. The PLC controller boasts high reliability and flexible programming capabilities, enabling precise control of the operating status of the water pump 2 and the electric actuator 71, achieving automated operation. The HMI allows operators to easily set parameters (such as pumping duration and cleaning frequency) and monitor equipment operating data in real time (such as current and water level), improving the intelligence level of emergency response. The PLC controller receives feedback signals from various components (such as the position signal of the electric actuator 71 and the operating current of the water pump 2), and outputs control signals according to preset programs or manual commands to regulate the start and stop of the water pump 2 and the extension and retraction of the electric actuator 71. The HMI communicates with the PLC via data transmission, enabling visual operation of parameter input and status display.

[0026] To facilitate the movement of the drainage device: a handle 6 is fixedly connected to the end of the mobile base 1 away from the water pump 2, and an anti-slip sleeve 61 is fixedly fitted on the handle 6. The handle 6 provides a convenient point of force for moving the equipment. Combined with the roller design of the mobile base 1, a single person can push the device to the water accumulation point, improving deployment flexibility. The anti-slip sleeve 61 increases the friction between the hand and the handle 6, preventing slippage during pushing and improving operational safety and comfort. The operator applies pushing force by gripping the handle 6, and the force is transmitted through the handle 6 to the mobile base 1, causing the bottom rollers to roll and move the equipment. The surface texture of the anti-slip sleeve 61 increases the coefficient of friction of the contact surface, reducing relative slippage between the hand and the handle 6.

[0027] Example 2 Unlike Example 1, to remove stones or suspended matter adsorbed on the filter screen 3, a retractable corrugated pipe 7 is fixedly installed between the water inlet pipe 21 and the filter screen 3. Electric push rods 71, electrically connected to the control unit 5, are fixedly installed on both sides of the water inlet pipe 21. The output end of the electric push rod 71 is fixedly connected to the bottom of the corrugated pipe 7. The electric push rods 71 ​​drive the filter screen 3 to move up and down reciprocally, using vibration to dislodge stubborn impurities, achieving automatic cleaning, reducing the frequency of manual cleaning, and ensuring continuous operation of the equipment. After the control unit 5 issues a cleaning command, the output end of the electric push rod 71 extends and retracts, causing the bottom of the corrugated pipe 7 to move up and down synchronously with the filter screen 3. Vibration causes impurities adsorbed on the surface of the filter screen 3 to detach. The retractable nature of the corrugated pipe 7 compensates for the displacement of the filter screen 3, ensuring the sealing of the water inlet pipe 21. The PVC material resists the erosion of water flow and impurities. The electric push rod 71 is model YRJ065.

[0028] The corrugated pipe 7 is made of high-strength PVC. The high-strength PVC corrugated pipe 7 can flexibly expand and contract with the movement of the filter screen 3, and has wear-resistant and anti-aging properties, making it suitable for use in humid environments.

[0029] Example 3 Unlike Embodiment 1, to prevent liquid backflow in the inlet pipe 21, a positioning ring 8 is fixedly connected inside the inlet pipe 21, and a rubber cap 81 is hinged to the top of the positioning ring 8. The cooperation between the positioning ring 8 and the rubber cap 81 effectively prevents water backflow in the inlet pipe 21, avoiding a decrease in drainage efficiency due to backflow, and preventing impurities from re-entering the pump body with the backflowing sewage, thus protecting the impeller of the water pump 2 from damage. When the water pump 2 is working, a negative pressure is formed in the inlet pipe 21, and the external water pressure pushes the rubber cap 81 to flip upward around the hinge end, opening the channel of the positioning ring 8 and allowing filtered water to enter; when the water pump 2 stops or water backflow occurs, the backflow pressure forces the rubber cap 81 to flip downward, tightly fitting against the positioning ring 8, sealing the channel and preventing water from flowing backward.

[0030] The wiring diagram of the water pump 2 and the electric push rod 71 in this utility model is common knowledge in the field. Its working principle is a well-known technology. The appropriate model is selected according to actual use. Therefore, the control method and wiring layout of the water pump 2 and the electric push rod 71 will not be explained in detail.

[0031] The control method of this application is through a control unit. The control circuit of the control unit can be implemented by a person skilled in the art through simple programming. The power supply is also common knowledge in the art. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0032] It should be noted that many of the standard parts used in this application are available on the market, while non-standard parts can be specially customized. The connection method used in this application is also a very common method in the mechanical field, and will not be described in detail here.

[0033] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A flood control emergency drainage device, comprising a mobile base (1) and a water pump (2) installed on the mobile base (1), wherein the input end of the water pump (2) is connected to an inlet pipe (21) and the output end is connected to an outlet pipe (22), and a filter screen (3) is provided at the bottom of the water pump (2). It also includes a storage battery (4) and a control unit (5), the control unit (5) being electrically connected to the storage battery (4) and the water pump (2); Its features are: The filter screen (3) is hemispherical with a larger bottom and a smaller top. The bottom surface of the filter screen (3) is provided with an inwardly concave hemispherical groove (31). Both sides of the filter screen (3) are provided with guide grooves (32) that are connected to the hemispherical grooves (31), and the inner wall of the guide grooves (32) is convex arc-shaped.

2. The flood control emergency drainage device according to claim 1, characterized in that: The filter screen (3) is made of high-strength stainless steel and has a pore size of 5mm.

3. The flood control emergency drainage device according to claim 1, characterized in that: The control unit (5) is a PLC controller and a human-machine interface.

4. The flood control emergency drainage device according to claim 1, characterized in that: A handle (6) is fixedly connected to one end of the movable base (1) away from the water pump (2), and an anti-slip sleeve (61) is fixedly fitted on the handle (6).

5. The flood control emergency drainage device according to claim 1, characterized in that: A retractable corrugated pipe (7) is fixedly installed between the water inlet pipe (21) and the filter screen (3). Electric push rods (71) electrically connected to the control unit (5) are fixedly installed on both sides of the water inlet pipe (21). The output end of the electric push rod (71) is fixedly connected to the bottom of the corrugated pipe (7).

6. The flood control emergency drainage device according to claim 5, characterized in that: The corrugated pipe (7) is made of high-strength PVC.

7. The flood control emergency drainage device according to claim 1, characterized in that: The water inlet pipe (21) is fixedly connected to a positioning ring (8), and a rubber cap (81) is hinged to the top of the positioning ring (8).

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