CN115743258A - Emergency flood-fighting and waterlogging-draining device suitable for rural households and method thereof - Google Patents

Abstract

The invention relates to an emergency flood fighting and waterlogging draining device suitable for rural households and a method thereof. The invention has simple structure, convenient disassembly and low equipment cost, is convenient for rural household emergency flood fighting and also improves the use efficiency.

Description

Emergency flood-fighting and waterlogging-draining device suitable for rural households and method thereof

Technical Field

The invention relates to an emergency flood-fighting and waterlogging draining device suitable for rural households, and belongs to a draining device.

Background

In recent years, flood disasters all over the country are serious, people and property of the population suffer great loss, and the research and development of flood-resisting and flood-draining equipment are very important. The existing flood drainage equipment is mostly in favor of urban design, is specially used for fire-fighting organizations, and is large in size and inconvenient to operate; flood fighting equipment for rural terrains is extremely rare. When rural infrastructure falls behind, people cannot timely transfer property once flood disasters happen by using the existing rural flood control facilities, and serious economic loss is easily caused; because the rural area is wide, when flood disasters occur, rescue is not as timely as in cities, people need to take measures to transfer property in time, delay the disaster occurrence time, and wait for rescue to be the final solution. The rural area is generally a single family life, the house foundation is higher than the courtyard during building, the courtyard foundation is higher than the road outside the door, and water in the courtyard automatically flows to the road through different heights during raining, so that the purpose of draining water is achieved. However, the rainfall is too much, the water in the courtyards cannot be discharged when the people meet flood disasters, and even the accumulated water outside the courtyards flows backwards, so that the water enters the houses and the property is damaged. Therefore, in rural areas, how to prevent backflow and discharge water in courtyards in time is particularly important when flood disasters occur. However, the existing flood drainage equipment has large volume and high cost, is not beneficial to popularization and use in rural areas, and particularly cannot adapt to the problem of flood resistance and drainage of single households in rural areas.

Disclosure of Invention

The invention relates to an emergency flood fighting and drainage device suitable for rural households, which solves the problems that the conventional flood fighting and drainage device is large in size and high in cost and cannot adapt to flood fighting and drainage of single households in rural areas.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

an emergency flood fighting and drainage device suitable for rural households comprises a movable trolley, a box body, a box cover, a flexible hose, a direct-current water pump, a main power supply and a control alarm system, wherein the box body comprises four L-shaped side baffles, mortises 25 are formed in the edges of the L-shaped side baffles, the L-shaped side baffles comprise two rectangular plates connected through pin shafts, elastic sealing plates are arranged at the joints of the pin shafts, the four L-shaped side baffles are fixed with a top plate of the movable trolley through mortise-tenon connecting pieces, the inner surface of the box cover is provided with four mortises 25 in positions opposite to the top plate of the movable trolley, and the mortises 25 are fixedly connected with the L-shaped side baffles through the mortise-tenon connecting pieces; the inner surface of the box cover is provided with support legs, and the support legs are connected with the box cover shaft.

Preferably: the control alarm system comprises a PLC (programmable logic controller), a wireless module, a warning lamp, a buzzer alarm and a controller power supply, the control alarm system is installed in the control box, and the direct-current pump, the wireless module, the warning lamp and the buzzer alarm are respectively connected with the PLC.

Preferably: the bottom of the L-shaped side baffle plates faces outwards and is provided with a horizontal water chute, wherein one L-shaped side baffle plate is provided with a vertical water chute, and the vertical water chute is communicated with the horizontal water chute.

Preferably: the middle of case lid top be provided with the division board, the division board pass through the arc elastic plate with the case lid together fixed, the division board divide into power fixed area and water pump fixed area with the case lid, the power fixed area be provided with a plurality of fixed elasticity ropes, the water pump fixed area be provided with the fixed buckle of L shape, the fixed buckle of L shape with case lid swing joint, the fixed buckle of L shape can rotate in the L shape recess that the income set up on the case lid.

Preferably: the emergency flood fighting and drainage device further comprises an expansion flood control bag, a fire flashlight, a fire rescue rope and a life jacket.

Preferably: the main power supply is a direct-current storage battery.

Preferably: the direct-current water pump is provided with a pressure regulating module.

Preferably: the emergency flood fighting and drainage device further comprises a liquid level sensor, and the liquid level sensor is connected with the PLC.

Preferably: the emergency flood fighting and drainage device further comprises a monitoring camera, and the monitoring camera is connected with the PLC.

The invention also provides an emergency flood-fighting and waterlogging draining method suitable for rural households, and the emergency flood-fighting and waterlogging draining device comprises the following steps:

(1) Setting flood control emergency time period and drainage technological parameters according to local historical rainfall rules;

(2) The control system is arranged in the control box, the control box is placed at a proper position in a room in a non-flood-fighting and flood-draining period, the controller power supply is adopted to supply power to the controller, the PLC receives weather information, and if the weather information has flood disaster risks, an alarm is given out to remind people to assemble the emergency flood-fighting and flood-draining device together; if the time reaches the flood control emergency time period, the PLC sends reminding information to the remote terminal to remind people to assemble the emergency flood control and drainage device together; meanwhile, the monitoring camera shoots and transmits the image of the box body to the PLC, the PLC compares the received image with the image in the system, judges whether needed equipment is arranged in the box body or not, and gives an alarm if the needed equipment is not arranged in the box body, so that people are reminded to assemble and set the box body, and preparation is made for flood control and waterlogging prevention;

(3) When a flood disaster occurs, the L-shaped side baffle is detached from the movable trolley, the movable trolley is connected into a large water baffle through the tenon-and-mortise connecting piece and fixed behind the gate, one end of the box cover is fixed on the L-shaped side baffle, the other end of the box cover is fixed through the support frame feet to form a working plane, and the main power supply and the direct-current water pump are fixed on the working plane to prepare for flood drainage;

(4) When the liquid level sensor detects that the water level of the accumulated water in the yard reaches the drainage water level, the direct-current water pump is started to perform drainage operation;

(5) When flood disasters are finished, all parts are detached, the main power source and the movable trolley are used for daily life, and other equipment is stored.

The invention has the beneficial effects that:

the movable trolley and the detachable baffle plate are combined together, the movable trolley can be used as a movable trolley in ordinary life and used for carrying things, the baffle plate is detached and assembled into the baffle plate when flood fighting and waterlogging draining are performed, flood outside a hospital can be effectively prevented from entering a yard after the movable trolley is placed on a large door, the problem of backflow is solved, the structure is simple, the detachment is convenient, the equipment cost is low, emergency flood fighting in rural households is facilitated, and the use efficiency is improved.

The flood fighting monitoring system is provided with the monitoring camera and the alarm system, so that people can be reminded of preventing flood disasters in real time, flood fighting materials which are normally loosely placed can be ensured to be placed in a centralized manner before the flood disasters come, and the problems that the flood fighting and flood fighting material preparation is insufficient when the flood disasters come are solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a perspective view of the flood drainage apparatus of the present invention;

fig. 2 is another perspective view of the flood drainage device of the present invention;

FIG. 3 is an exploded view of the case of the present invention;

FIG. 4 is an L-shaped side dam with a groove;

FIG. 5 is a schematic view of the L-shaped side dam and the cover in operation;

FIG. 6 is a front view of a case lid with a divider plate;

FIG. 7 is a top view of a case lid with a divider panel;

FIG. 8 is a block diagram of a control alarm system;

in the drawing, 1 is the travelling car, 2 is the fire control flashlight, 3 is the fire rescue rope, 4 is flexible hose, 5 is inflation flood control bag, 6 is the life vest, 7 is the control box, 8 is direct current pump, 9 is the support frame foot, 10 is the case lid, 11 is tenon fourth of the twelve earthly branches connecting piece, 12 is level sensor, 13 is the round pin axle, 14 is the surveillance camera head, 15 is the elastic sealing board, 16 is the roof, 17 is horizontal guiding gutter, 18 is perpendicular guiding gutter, 19 is fixed elastic rope, 20 is the division board, 21 is the arc elastic plate, 22 is L shape fixing clip, 23 is L shape recess, 24 is L shape side shield, 25 is the tongue-and-groove.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. It should be apparent that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1-8, an emergency flood-fighting and waterlogging draining device suitable for rural household comprises a mobile trolley 1, a box body, a box cover 10, a flexible hose 4, a direct-current water pump 8, a main power supply and a control alarm system.

The movable trolley 1 is mainly used for storing and transporting flood prevention materials, and comprises a handle, wheels, a frame and a top plate 16, wherein the handle is fixed on the frame and is convenient to push and pull manually; the wheels are located at four corners of the frame and are of universal wheel structures, the wheels can move in all directions conveniently, buckles are arranged in the wheels, and the wheels can stop rotating by poking bolts on the outer surfaces of the wheels.

The box include four L shape side shields 24, the edge of L shape side shield 24 set up tongue-and-groove 25, L shape side shield 24 include two rectangular plates through round pin axle 13 connection, round pin axle 13 junction be provided with elastic sealing plate 15, four L shape side shields 24 through mortise-tenon joint spare 11 with the roof 16 of travelling car 1 fixed together, mortise-tenon joint spare 11 is the I shape structure, because need bear certain pulling force, its material generally is iron or stainless steel, preferred, adopts the alloy material. The elastic sealing plate 15 is used for sealing the connection part of the pin shaft 13 when the L-shaped side baffle 24 is unfolded, and preventing water from entering the hospital from the connection part of the pin shaft 13.

The box cover 10 is of a cuboid structure with the size consistent with that of the top plate 16, four mortises 25 are formed in the inner surface of the box cover 10 in a position opposite to the top plate 16 of the movable trolley 1, and the mortice and tenon joint part 11 is fixedly connected with the L-shaped side baffle 24; the inner surface of the box cover 10 is provided with a support leg 9, and the support leg 9 is connected with the box cover 10 through a shaft. The lower part of the supporting frame foot 9 is provided with three supporting legs, which is more favorable for the stability of the supporting. When flood disasters occur, water exists in courtyards, so that equipment can be placed everywhere, and by adopting the device, one side of the box cover 10 can be fixedly connected with the L-shaped side baffle plate 24 through the tenon-and-mortise connecting piece 11, and the other side of the box cover is fixed through the support frame feet 9, so that a dry place can be provided for placing the equipment.

When the water discharge operation is performed, the dc water pump 8 and the main power supply need to be fixed, but the dc water pump 8 is prone to water leakage, and there is a risk that the main power supply is caused to enter water. In order to avoid the risk, a separation plate 20 is arranged in the middle of the top of the case cover 10, the separation plate 20 is fixed with the case cover 10 through an arc-shaped elastic plate 21, the separation plate 20 divides the case cover 10 into a power supply fixing area and a water pump fixing area, the power supply fixing area is provided with a plurality of fixing elastic ropes 19, the water pump fixing area is provided with an L-shaped fixing clip 22, the L-shaped fixing clip 22 is movably connected with the case cover 10, and the L-shaped fixing clip 22 can be rotatably received in an L-shaped groove 23 formed in the case cover 10. For fixing stably, an elastic pad can be buckled on the L-shaped fixing clip 22.

The divider 20 divides the cover 10 into two sections, which reduces the risk of water ingress into the power-holding area.

Meanwhile, the main power supply and the direct-current water pump 8 can be conveniently and quickly fixed by adopting the fixing elastic rope 19 and the L-shaped fixing clip 22. When the box cover is not used, the partition plate 20 rotates towards the power supply fixing area and is fixed through the fixing elastic rope 19, the L-shaped fixing clip 22 is buckled and rotated to be received in the L-shaped groove 23 formed in the box cover 10, the surface of the box cover 10 is smooth, and daily use is facilitated.

Drainage in rural courtyards is generally performed through a door gap and a drainage outlet of a gate at present. When flood disasters occur, the reality of backward flow appears. The L-shaped side baffle 24 can effectively seal the door gaps at the bottom and the middle part of the gate, so that water outside the yard cannot flow back into the yard, but accumulated water in the yard cannot be drained. Therefore, when a certain water level is reached, the direct-current water pump 8 is needed to drain water. After the existing gate is closed, water cannot be drained through the gate, a drain pipe needs to be extended out of a yard from a wall of the yard, the drain pipe needs to be long, and the requirement on a water pump is high and energy consumption is high due to the fact that the water outlet position is high. In order to solve the problems, the invention adopts the technical scheme that horizontal water chutes 17 are formed in the L-shaped side baffle plates 24 with the bottoms facing outwards, wherein a vertical water chute 18 is formed in one L-shaped side baffle plate 24, and the vertical water chute 18 is communicated with the horizontal water chute 17.

Thus, a drainage channel is formed at the bottom of the gate and the middle of the gate, and a drainage pipe is arranged in the vertical water chute 18 during drainage. Because the water velocity of the water that the direct current pump 8 goes out is faster than the flood speed of the outer free stream of door, can effectually discharge the water in the institute through the gap at gate bottom and middle part, reduced the length and the drainage height of drain pipe effectively, reduced the energy consumption effectively.

The joint part of the flexible hose 4 is provided with a quick connector, so that the flexible hose can be quickly connected with the direct-current water pump 8 when flood disasters occur. Due to the complex chemical components of the flood, the flexible hose 4 is required to have the characteristics of corrosion resistance, pressure resistance and the like.

The main power supply mainly supplies power to the equipment. The storage battery in the household battery car is generally adopted for supplying power, the source is wide, the battery car and the device can be used together, and the cost is low. The main power supply is in this embodiment arranged below the life jacket 6 and is not shown.

The direct current water pump 8 is powered by a storage battery in the household battery car, is generally 48V direct current, and has the characteristics of long service life, low interference, large flow and the like. The DC water pump 8 can be additionally provided with a voltage regulating module, so that the DC water pump is suitable for storage batteries with various voltages.

The device is mainly used for flood control and disaster relief in rural areas, so the emergency flood control and waterlogging draining device further comprises an expansion flood control bag 5, a fire flashlight 2, a fire rescue rope 3 and a life jacket 6.

The fire-fighting flashlight 2 has multiple functions and is convenient for emergency self-rescue. The fire-fighting flashlight 2 is provided with a large-capacity battery, so that the endurance time is long; the high-beam and low-beam optical mode can be switched rapidly, and the optical mode switching device is suitable for various complex environments. Preferably, the fire-fighting flashlight 2 is provided with a side warning lamp (flashing red light) and a buzzer alarm, so that search by rescuers is facilitated. Preferably, the fire-fighting flashlight 2 is provided with a safe cutting knife and is controlled by a button, so that emergency operations such as rope cutting are facilitated. Preferably, the tail part of the fire-fighting flashlight 2 is provided with a strong magnetic adsorption structure which can be adsorbed on a vehicle body and an iron object, and hands are liberated to facilitate emergency rescue and disaster relief work. Preferably, the fire flashlight 2 is equipped with a solar charging panel, which can be charged by solar energy in the daytime and provide illumination at night.

The expansion flood control bag 5 is a novel waterproof product which is convenient to store and simple and rapid to use, and is made of linen or cotton cloth material with better water permeability, outer bags with different specifications and shapes are made according to different purposes, and special water absorption materials are used for inner bags. When in use, the bag is opened, the bag is immersed into water or directly drenched into the flood control bag for about 3 to 5 minutes, the bag can be expanded by 80 to 100 times (about 15 kg), and then the bag is moved to a required position for flood control and blocking.

The fire rescue rope 3 is required to be soft in texture, convenient to use, capable of better protecting a user from being injured, good in wear resistance and corrosion resistance, suitable for various complex environments, good in mechanical property, capable of bearing large tensile force and the like.

The life jacket 6 is generally provided with a marine life jacket 6, and after the life jacket 6 is soaked in water for 24 hours, the buoyancy loss of the life jacket 6 is less than 5 percent. Preferably, an inflatable lifejacket 6 is provided, the entire inflatable lifejacket 6 being worn like a belt, draped over the person's shoulder and back under normal conditions (not inflated); once the life jacket falls into water, the life jacket can finish inflation within 5 seconds to generate buoyancy by pulling a pull rope (a manual inflation life jacket 6) on the inflation valve at the emergency time when the life jacket is in danger and needs buoyancy, so that a human body is lifted upwards, and safety protection is obtained in time.

Control alarm system includes PLC controller, wireless module, warning light, buzzing siren and controller power, control alarm system install in control box 7, direct current pump 8, wireless module, warning light and buzzing siren respectively with the PLC controller connect.

The PLC is a digital electronic device with a microprocessor, which is a digital logic controller for automatic control and can load control instructions into a memory at any time for storage and execution. The programmable controller is modularly assembled by an internal CPU, an instruction and data memory, an input/output unit, a power module, a digital analog unit and the like. The PLC controller in the invention has the main functions as follows:

(1) And setting flood-fighting and waterlogging-preventing time periods according to local meteorological data. If the time period is Hong Fanglao in the rainy season of 7-9 months in a certain place, setting the time period to be Hong Fanglao, and when the time period is reached, sending reminding information to a remote terminal by a PLC (programmable logic controller), and giving an alarm to remind people of preparing flood-fighting and waterlogging-preventing substances;

(2) Receiving meteorological information sent by a meteorological department, and reminding people of preparing flood-fighting and waterlogging-preventing substances according to the level of the meteorological information;

(3) Receiving the image information transmitted by the monitoring camera 14, comparing the image information with the image information stored in the system, judging whether the box body has complete flood-fighting and flood-preventing materials, and reminding people to prepare flood-fighting and flood-preventing materials according to the situation;

(4) And receiving the water level information from the liquid level sensor 12, and starting the direct current water pump 8 to perform water drainage operation when the water level information reaches the water drainage state.

Meanwhile, the power supply can be monitored to send out power shortage reminding.

The emergency flood fighting and drainage device further comprises a liquid level sensor 12, and the liquid level sensor 12 is connected with the PLC.

The emergency flood fighting and drainage device further comprises a monitoring camera 14, and the monitoring camera 14 is connected with the PLC. The monitoring camera 14 adopts a network camera which is sold in the market and can shoot and upload image information, and the shot image information can be sent to the PLC.

Control system installs in control box 7, and control box 7 places suitable position in the room at non-flood control drainage period, adopts the controller power to supply power for the controller, when being in flood control drainage period, and control box 7 is in the same place with the box installation to be connected with main power supply, direct current water pump 8 and level sensor 12.

The wireless module is a modular product of a digital data transmission radio station, and refers to a high-performance professional data transmission radio station module realized by means of a DSP technology and a radio technology. The invention is used for receiving weather information sent by a meteorological department and sending information of the PLC to a remote terminal and the like.

The warning lamp and the buzzer alarm are generally arranged on the PLC controller and do not need to be arranged independently. Of course, separate warning lamps and buzzers can be arranged, and the warning lamp is mainly used for warning and reminding people to prepare flood prevention and flood fighting.

The controller power supply is generally a rechargeable power supply with a low power alerting function.

The invention also provides an emergency flood-fighting and waterlogging draining method suitable for rural households, and the emergency flood-fighting and waterlogging draining device comprises the following steps:

(1) Setting parameters of flood fighting and drainage periods and drainage conditions on a PLC (programmable logic controller) according to local historical rainfall rules;

(2) The control system is arranged in the control box 7, and the expansion flood control bag 5, the fire-fighting flashlight 2, the fire-fighting rescue rope 3, the life jacket, the liquid level sensor 12 and the monitoring camera 14 are intensively arranged at a proper place in a room; the other devices form a transportation trolley for daily life; the direct-current water pump 8 and the flexible hose 4 are used as daily pumping equipment; the control box 7 is placed at a proper position in a house in a non-flood-fighting and flood-drainage period, a controller power supply is adopted to supply power to the controller, the PLC receives weather information, and if the weather information has flood disaster risks, an alarm is given out to remind people to assemble the emergency flood-fighting and flood-drainage device together; if the time reaches the flood fighting and drainage time period, the PLC controller sends reminding information to the remote terminal to remind people to assemble the emergency flood fighting and drainage device together;

(3) The box bodies are installed together, the monitoring camera 14, the direct-current water pump 8, the main power supply, the liquid level sensor 12 and the PLC are used, the monitoring camera 14 is started, an image of the box body is shot and transmitted to the PLC, the PLC compares the received image with an image in a system, whether needed equipment exists in the box body or not is judged, if not, an alarm is given, people are reminded to assemble the box body, and preparation is made for flood control and waterlogging prevention;

(4) When an flood disaster happens, the L-shaped side baffle 24 is detached from the movable trolley 1 and is connected into a large water baffle through the tenon-and-mortise connecting piece 11 and fixed behind the gate, so that a large amount of water flow is prevented from entering a room; meanwhile, one end of the box cover 10 is fixed on the L-shaped side baffle 24, the other end of the box cover is fixed through the support frame feet 9 to form a working plane, the main power supply and the direct-current water pump 8 are fixed on the working plane to prepare for drainage of stagnant water, and the expanded fire-fighting bag is placed at the gap to prevent flood blockage after absorbing water quickly;

(5) When the liquid level sensor 12 detects that the water level of accumulated water in a hospital reaches a drainage water level, the direct-current water pump 8 is started to perform drainage operation and perform early warning at the same time, so that the problem that flood disasters occur at night and rapid flood fighting cannot be responded in time is solved;

(6) When the flood disaster is over, all parts are separated, the main power supply and the movable trolley 1 are used for daily life, and other equipment is stored.

The device has simple structure and convenient disassembly, and most of equipment can be used as daily life appliances, thereby effectively improving the utilization rate of the equipment.

Although embodiments of the present invention have been described above, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims.

Claims (10)

1. The utility model provides a be suitable for rural domestic emergent flood control drainage waterlogging device which characterized in that: the movable trolley comprises a movable trolley, a box body, a box cover, a flexible hose, a direct-current water pump, a main power supply and a control alarm system, wherein the box body comprises four L-shaped side baffles, mortises are formed in the edges of the L-shaped side baffles, the L-shaped side baffles comprise two rectangular plates connected through pin shafts, elastic sealing plates are arranged at the joints of the pin shafts, the four L-shaped side baffles are fixed with a top plate of the movable trolley through mortise-tenon joint parts, four mortises are formed in the inner surface of the box cover in positions opposite to the top plate of the movable trolley, and the four mortises are fixedly connected with the L-shaped side baffles through the mortise-tenon joint parts; the inner surface of the box cover is provided with support legs, and the support legs are connected with the box cover shaft.

2. An emergency flood fighting and drainage device suitable for rural household use according to claim 1, wherein: the control alarm system comprises a PLC (programmable logic controller), a wireless module, a warning lamp, a buzzer alarm and a controller power supply, the control alarm system is installed in the control box, and the direct-current pump, the wireless module, the warning lamp and the buzzer alarm are respectively connected with the PLC.

3. An emergency flood fighting and drainage device suitable for rural household use according to claim 1, wherein: the bottom of the L-shaped side baffle plates faces outwards and is provided with a horizontal water chute, wherein one L-shaped side baffle plate is provided with a vertical water chute, and the vertical water chute is communicated with the horizontal water chute.

4. An emergency flood fighting and drainage device suitable for rural household use according to claim 1, wherein: the middle of case lid top be provided with the division board, the division board pass through the arc elastic plate with the case lid together fixed, the division board divide into power fixed area and water pump fixed area with the case lid, the power fixed area be provided with a plurality of fixed elasticity ropes, the water pump fixed area be provided with the fixed buckle of L shape, the fixed buckle of L shape with case lid swing joint, the fixed buckle of L shape can rotate in the L shape recess that the income set up on the case lid.

5. An emergency flood fighting and drainage device suitable for rural household use according to claim 1, wherein: the emergency flood fighting and drainage device further comprises an expansion flood control bag, a fire flashlight, a fire rescue rope and a life jacket.

6. An emergency flood fighting and drainage device suitable for rural household use according to claim 1, wherein: the main power supply is a direct-current storage battery.

7. An emergency flood fighting and drainage device suitable for rural household use according to claim 1, wherein: the direct-current water pump is provided with a pressure regulating module.

8. An emergency flood fighting and drainage device suitable for rural household use according to claim 1, wherein: the emergency flood fighting and drainage device further comprises a liquid level sensor, and the liquid level sensor is connected with the PLC.

9. The emergency flood-fighting and drainage device for rural household use according to claim 1, wherein: the emergency flood fighting and drainage device further comprises a monitoring camera, and the monitoring camera is connected with the PLC.

10. An emergency flood-fighting and waterlogging draining method suitable for rural households is characterized by comprising the following steps: the emergency flood fighting and drainage device according to any one of claims 1 to 9, comprising the steps of:

(1) Setting flood control emergency time period and drainage technological parameters according to local historical rainfall rules;

(2) The control system is arranged in the control box, the control box is placed at a proper position in a room in a non-flood-fighting and flood-draining period, the controller power supply is adopted to supply power to the controller, the PLC receives weather information, and if the weather information has flood disaster risks, an alarm is given out to remind people to assemble the emergency flood-fighting and flood-draining device together; if the time reaches the flood control emergency time period, the PLC sends reminding information to the remote terminal to remind people to assemble the emergency flood control and drainage device together; meanwhile, the monitoring camera shoots and transmits the image of the box body to the PLC controller, the PLC controller compares the received image with the influence in the system, judges whether needed equipment exists in the box body or not, and gives an alarm if the needed equipment does not exist, reminds people of assembly setting, and prepares for flood control and waterlogging prevention;

(3) When a flood disaster occurs, the L-shaped side baffle is detached from the movable trolley, the movable trolley is connected into a large water baffle through the tenon-and-mortise connecting piece and fixed behind the gate, one end of the box cover is fixed on the L-shaped side baffle, the other end of the box cover is fixed through the support frame feet to form a working plane, and the main power supply and the direct-current water pump are fixed on the working plane to prepare for flood drainage;

(4) When the liquid level sensor detects that the water level of the accumulated water in the yard reaches the drainage water level, the direct-current water pump is started to perform drainage operation;

(5) When the flood disaster is finished, all parts are detached, the main power supply and the movable trolley are used for daily life, and other equipment is stored.

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