Intelligent multi-drive high-low pressure water tanker and control method thereof

Abstract

The invention discloses an intelligent multi-drive high-low pressure water tanker and a control method thereof, and relates to the technical field of water tanker, the intelligent multi-drive high-low pressure water tanker comprises a water tanker body, the water tanker body is provided with a carriage, the carriage is provided with a front bin, a middle bin and a rear bin, the front bin is provided with a high pressure plunger pump, the middle bin is provided with a water storage tank, and the rear bin is provided with a water pump. The rear bin is provided with a low-pressure water pump, the high-pressure plunger pump is connected with the water storage tank through a first pipeline, and the low-pressure water pump is connected with the water storage tank through a second pipeline. Power is obtained through the sandwich type power takeoff, power distribution is achieved through the transfer case, and power is provided for the high-pressure plunger pump, the hydraulic pump and the low-pressure water pump; the three power output modules cooperatively operate, so that the fire fighting truck has multiple functions of high-pressure precise fire extinguishing, low-pressure large-flow water supply, hydraulic equipment driving and the like, and the comprehensive capacity of the truck in a fire rescue task is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water tank fire trucks, and in particular to an intelligent multi-drive high and low pressure water tank fire truck and a control method thereof. Background Art

[0002] As the core equipment in the field of firefighting and rescue, the main function of water tank fire trucks is to load firefighting water, carry firefighting water pumps and firefighting equipment, quickly transport water and firefighters to the fire scene, and independently complete firefighting operations. As firefighting and rescue scenes become increasingly complex and diverse, higher requirements are placed on the performance of water tank fire trucks. They not only need to have efficient firefighting capabilities, but also need to meet the power requirements for hydraulic operating equipment in emergency rescue.

[0003] At present, most of the high- and low-pressure water tank fire trucks and high-, medium- and low-pressure pump water tank fire trucks widely used on the market use a high- and low-pressure combined pump as the core power unit. Although this single-pump design saves space for the entire vehicle to a certain extent, there are many technical bottlenecks. First, a pump needs to take into account both high-pressure and low-pressure working conditions at the same time, which leads to a significant increase in the power consumption of the equipment during operation and low energy utilization efficiency, thereby increasing the operating cost of the vehicle; second, the high- and low-pressure switching and operation procedures are cumbersome, requiring operators to perform multiple steps, which not only reduces the response speed of firefighting operations, but also increases the risk of operational errors; third, due to the large size of the high- and low-pressure combined pump, the internal space of the pump room is extremely narrow, which seriously affects the operator's daily operating convenience and equipment maintenance and repair work. In emergency rescue situations, the narrow space may delay maintenance time and affect rescue efficiency.

[0004] In addition, existing water tank fire trucks generally have the problem of a single power source, and most of them are only equipped with a power system for driving a water pump, lacking an independent hydraulic drive module. This defect makes it impossible to effectively configure advanced hydraulic operating equipment such as hydraulic shears and hydraulic jacks on water tank fire trucks, greatly limiting the application scope of fire trucks in complex rescue scenarios such as traffic accident rescue and building collapse rescue, and making it difficult to meet the actual needs of diversified rescue tasks.

[0005] Therefore, the existing high and low pressure water tank fire trucks and high, medium and low pressure pump water tank fire trucks have obvious deficiencies in power system configuration, operating performance and functional diversity. It is urgent to develop an intelligent multi-drive high and low pressure water tank fire truck and its control method to solve the above technical problems and improve the comprehensive performance and actual combat capability of fire fighting and rescue equipment. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides an intelligent multi-drive high and low pressure water tank fire truck and a control method thereof, which solves the problems raised in the above background technology.

[0007] To achieve the above object, the present invention is realized by the following technical solutions:

[0008] An intelligent multi-drive high and low pressure water tank fire truck, including a fire truck body, on which a carriage is provided. It is characterized in that: the carriage is provided with a front compartment, a middle compartment and a rear compartment. The front compartment is provided with a high-pressure plunger pump, the middle compartment is provided with a water storage tank, the rear compartment is provided with a low-pressure water pump. The high-pressure plunger pump is connected to the water storage tank through a first pipeline, the low-pressure water pump is connected to the water storage tank through a second pipeline. The high-pressure plunger pump is provided with a high-pressure water outlet pipe, the water storage tank is provided with a water injection pipe, the low-pressure water pump is provided with a water suction pipe, a low-pressure water outlet pipe and a water cannon; inside the fire truck body, a sandwich type power take-off is provided, the sandwich type power take-off is drivingly connected with a transfer case, inside the transfer case, there are a left output end, a right output end and a middle output end. The left output end is connected to the high-pressure plunger pump through a coupling, the right output end is connected to a hydraulic pump through a coupling, and the middle output end is connected to the low-pressure water pump through a transmission shaft.

[0009] Furthermore, the front compartment is provided with a high-pressure pump room rolling curtain, above the high-pressure plunger pump in the front compartment, there is a high-pressure pump room equipment room and high-pressure water hoses. The front compartment is provided with a sub-controller assembly; on the side of the rear compartment, there is a low-pressure pump room equipment room and low-pressure water hoses. The rear compartment is provided with a main controller assembly. Behind the rear compartment, there is a rear rolling curtain door, inside the rear rolling curtain door, there are fire fighting equipment accessories and clamping parts; on the top of the carriage, a rotating illuminating lamp is fixedly installed, on both sides of the top of the carriage, illuminating lamps and warning lamps are fixedly installed, and on the top of the fire truck body, a long row of red warning lamps is provided.

[0010] Furthermore, the number of the high-pressure water hoses is set to four and they are evenly distributed inside the front compartment, and the number of the low-pressure water hoses is set to four and they are evenly distributed inside the rear compartment.

[0011] Further, a filtering device is provided on the water injection pipe. The filtering device includes a box body, a waste box, a motor, a water inlet pipe, a water outlet pipe, a rotating shaft, a filtering box, a rotating disk, an inclined cutting plate, a sliding plate, a sliding rod, a first scraper, a fixing ring, a second scraper, a filter cylinder and a first filter plate. The box body is fixedly installed inside the water storage tank. The waste box fixedly penetrates through the surface of the box body. The motor is fixedly installed inside the box body. The water inlet pipe fixedly penetrates through the surface of the box body. The water outlet pipe fixedly penetrates through the surface of the box body. The rotating shaft is fixedly installed at the output end of the motor. The filtering box is fixedly installed on the inner wall of the box body. The rotating disk is fixedly installed on the circumferential surface of the rotating shaft. The inclined cutting plate is fixedly installed on the surface of the rotating disk. The sliding plate is slidably installed on the circumferential surface of the rotating shaft. The sliding rod fixedly penetrates through the surface of the sliding plate. The first scraper is fixedly installed at the end of the sliding rod away from the sliding plate. The fixing ring is fixedly installed on the circumferential surface of the rotating shaft. The second scraper is fixedly installed on the circumferential surface of the fixing ring. The filter cylinder is fixedly installed at the bottom of the inner wall of the box body. The first filter plate is fixedly installed on the top of the filter cylinder. Continuously agitate the fluid to prevent impurities from settling inside the filter, ensure that the impurities are carried away, prevent deposition, and thus maintain the stability of the filtration efficiency.

[0012] Further, the water injection pipe is communicated with the water inlet pipe. The water outlet pipe is communicated with the water storage tank. The surface of the inclined cutting plate is set as a first arc surface. A spring is arranged between the rotating disk and the sliding plate. The first scraper is slidably connected with the inner wall of the box body. The second scraper is in contact with the surface of the first filter plate. A discharge port is opened on the surface of the waste box. After the impurities are centrally collected, they are easier to handle, avoiding the situation of increasing the cleaning difficulty due to the dispersion of dirt, reducing the frequency and workload of manual cleaning, improving the cleaning efficiency, and reducing the labor cost.

[0013] Further, a waste collection device is provided for the filtering device. The waste collection device includes a fixing rod, an inclined plate, a flow stirring plate, a fixing plate, a filter frame, a connecting plate, a cover plate, a leakage box, a second filter plate and a filter pipe. The fixing rod is fixedly installed on the surface of the sliding plate. The inclined plate is fixedly installed at the bottom of the inner wall of the filtering box. The flow stirring plate is fixedly installed at the end of the fixing rod away from the sliding plate. The fixing plate is fixedly installed on the inner wall of the waste box. The filter frame is slidably installed on the inner wall of the waste box. The connecting plate is fixedly installed on the surface of the filter frame. The cover plate is fixedly installed at the end of the connecting plate away from the filter frame. The leakage box is fixedly installed on the surface of the waste box. The second filter plate is fixedly installed on the inner wall of the leakage box. The filter pipe fixedly penetrates through the bottom of the leakage box. Stir the corrosion inhibitor disinfectant accumulated inside the agent box evenly and disperse the caked or sticky agent to prevent the agent from blocking the feeding channel, ensure the full mixing of the corrosion inhibitor and the disinfectant, and improve the component stability of the subsequent feeding.

[0014] Furthermore, a telescopic elastic rod is fixedly installed at the top of the fixed plate. The free end of the telescopic elastic rod is fixedly connected to the bottom of the filter frame. The filter pipe fixedly penetrates the surface of the waste material box. An opening is formed on the surface of the filter frame, preventing the water inside the waste material box from flowing back into the agent material box, thereby avoiding the dampness or dissolution of the agent material.

[0015] Furthermore, the filtering device is provided with a corrosion inhibition and disinfection device. The corrosion inhibition and disinfection device includes a connecting rod, a closing plate, an agent material box, a fixed connecting plate, a reciprocating lead screw, a discharge limiting blade, a feeding pipe, an eccentric wheel, a drying box, and a stirring plate. The connecting rod is fixedly installed at the bottom of the filter frame. The closing plate is fixedly installed at the end of the connecting rod away from the filter frame. The agent material box is fixedly installed on the surface of the waste material box. The fixed connecting plate is fixedly installed on the circumferential surface of the connecting rod. The reciprocating lead screw is rotatably installed at the bottom of the agent material box. The discharge limiting blade is fixedly installed on the circumferential surface of the reciprocating lead screw. The feeding pipe fixedly penetrates the bottom of the agent material box. The eccentric wheel is fixedly installed on the circumferential surface of the reciprocating lead screw. The drying box is fixedly installed on the surface of the agent material box. The stirring plate is slidably installed on the inner wall of the drying box. A stirring ring is fixedly installed on the circumferential surface of the reciprocating lead screw, avoiding excessive waste of the agent material or little effect due to too little agent material. The stirring plate moves to stir the desiccant accumulated inside the drying box, increasing the contact area between the desiccant inside the drying box, the air inside the agent material box, and the agent material.

[0016] Furthermore, circular holes are formed on the surface of the closing plate. The fixed connecting plate is slidably connected to the circumferential surface of the reciprocating lead screw, and they are threadedly connected. The feeding pipe fixedly penetrates the surface of the waste material box. The fixed connecting plate is slidably connected to the inner wall of the agent material box. Desiccant is provided on the inner wall of the drying box, thereby improving the drying effect and efficiency of the drying box on the inside of the agent material box. At the same time, it avoids the failure of local desiccant due to excessive moisture absorption and saturation. Through continuous turning, uniform loss of the desiccant is achieved, prolonging the overall service life, avoiding caking of the agent material due to dampness, and forming a synergistic protection with stirring to ensure that the material is in a flowable state for a long time.

[0017] A control method for an intelligent multi-drive high and low pressure water tank fire truck using the above-mentioned intelligent multi-drive high and low pressure water tank fire truck includes the following steps:

[0018] Step 1: Connect the water injection pipe to the fire hydrant and inject water into the water storage tank through the fire hydrant.

[0019] Step 2: Connect the high-pressure water hose to the high-pressure water outlet pipe. Start the high-pressure plunger pump through the sub-control unit assembly. After pressurizing the water in the water storage tank by the high-pressure plunger pump, implement high-pressure spraying through the high-pressure water outlet pipe and the high-pressure water hose.

[0020] Step 3: Connect the low-pressure water hose to the low-pressure water outlet pipe and connect the suction pipe of the low-pressure water pump to the external water source pipeline.

[0021] Step 4: Start the low-pressure water pump through the main controller assembly, extract the external water source, and form the first low-pressure output path after pressurization: The water body sequentially passes through the low-pressure water outlet pipe and the low-pressure water belt to perform medium-low pressure spraying.

[0022] Step 5: The low-pressure water pump extracts the external water source and simultaneously forms the second low-pressure output path after pressurization: The water body is sprayed through the water cannon.

[0023] Step 6: Switch the water intake path of the low-pressure water pump to the water storage tank to form the third low-pressure output path: After the water body in the water storage tank is pressurized by the low-pressure water pump, medium-low pressure spraying is performed through the low-pressure water outlet pipe and the low-pressure water belt.

[0024] Step 7: The low-pressure water pump extracts the water body in the water storage tank and simultaneously forms the fourth low-pressure output path after pressurization: The water body is sprayed through the water cannon.

[0025] The present invention provides an intelligent multi-drive high-low pressure water tank fire truck and its control method. It has the following beneficial effects:

[0026] (1) For this intelligent multi-drive high-low pressure water tank fire truck, an efficient power transmission system is set up. The sandwich type power take-off is connected to the chassis gearbox, smoothly obtains power from the gearbox, and efficiently transmits it to the transfer case. There are three independent output ends, namely the left, right, and middle, inside the transfer case. Each output end realizes precise power distribution as needed: The left output end drives the high-pressure plunger pump through a high-strength coupling, which can provide strong power to meet the high-intensity operation requirements such as high-pressure fire extinguishing and long-range water spraying; the right output end is connected to the hydraulic pump through a coupling to stably supply energy for various hydraulic operation devices such as hydraulic shears and hydraulic jacks, which is suitable for complex working conditions such as demolition and lifting in emergency rescue; the middle output end drives the low-pressure water pump through a transmission shaft to ensure the stable operation of large-flow and low-pressure water supply operations. The multi-drive function is realized, and the three major power output modules cooperate with each other, endowing the fire truck with composite functions such as high-pressure precise fire extinguishing, low-pressure large-flow water supply, and driving of hydraulic equipment, significantly improving the combat effectiveness and environmental adaptability of the vehicle in complex rescue scenarios.

[0027] (2) The intelligent multi-drive high- and low-pressure water tank fire truck has a reasonable and compact layout. Three sets of power equipment, including a high-pressure plunger pump, a low-pressure water pump, and a hydraulic pump, are arranged in a limited space. By setting up a high-pressure plunger pump and a low-pressure water pump, the problem of one pump having to take into account both high and low pressure, high power consumption, many operating steps, and a large main pump resulting in a narrow pump room space that is inconvenient for operation and maintenance is solved. The water source path can be controlled by an intelligent control system. The intelligent control system has main and sub-controller assemblies arranged in different positions to achieve local control and interlocking control, reduce operating steps and processes, and improve emergency efficiency. The water is filtered and waste is collected through a filtering device. Filtering impurities in the water can ensure the cleanliness of the water, thereby improving the efficiency and stability of the water flow, spraying it more effectively on the fire source, and improving the fire extinguishing efficiency.

[0028] (3) When the water flows into the filter box through the water injection pipe, the impurities in the water will be isolated inside the filter box. The movement of the sliding plate drives the sliding rod to move, and at the same time, the movement of the sliding rod drives the scraper 1 to move upward. The upward movement of the scraper 1 will scrape off the impurities attached to the inner wall of the box, which can effectively improve the working efficiency of the filtration system, extend the life of the equipment, reduce maintenance costs, and maintain a stable flow rate and high-quality filtration effect. The rotation of the shaft drives the fixed ring to rotate, and at the same time, the rotation of the fixed ring drives the scraper 2 to rotate. The rotation of the scraper 2 will scrape off the impurities attached to the surface of the filter plate 1, which can effectively remove these accumulated impurities and prevent the filter from losing its effect due to clogging.

[0029] (4) The intelligent multi-drive high and low pressure water tank fire truck moves upward under the action of the sliding plate through the fixed rod and drives the stirring plate to move. The movement of the stirring plate stirs the impurities deposited on the surface of the inclined plate and makes it flow along the water flow to the waste box, continuously stirring the fluid to prevent impurities from settling inside the filter, ensuring that the impurities are taken away and prevented from deposition, thereby maintaining the stability of the filtration efficiency and flowing into the box. At the same time, impurities accumulate on the surface of the second filter plate for convenient centralized treatment. After the impurities are concentrated and collected, they are easier to handle, avoiding the situation where the difficulty of cleaning is increased due to the dispersion of dirt, reducing the frequency and workload of manual cleaning, improving cleaning efficiency, and reducing labor costs.

[0030] (5) The intelligent multi-drive high and low pressure water tank fire truck drives the stirring ring to rotate by reciprocating screw to evenly stir the corrosion inhibitor and disinfectant accumulated inside the agent box and break up the lumps or sticky agents to prevent the agents from blocking the delivery channel, ensure that the corrosion inhibitor and disinfectant are fully mixed, and improve the stability of the ingredients for subsequent delivery. The agents inside the agent box are delivered into the waste box through the delivery pipe, preventing the water inside the waste box from flowing back into the agent box and causing the agents to become damp or dissolved.

[0031] (6) In this intelligent multi-drive high and low pressure water tank fire truck, the discharge limit blade rotates to restrict the delivery pipe and prevent it from discharging. Then, it rotates one full circle to release the restriction on the delivery pipe, achieving quantitative delivery of the agent in the agent tank, avoiding excessive waste of the agent due to too much or little agent resulting in little effect. The stirring plate moves to stir the desiccant accumulated inside the drying box, increasing the contact area between the desiccant inside the drying box and the air inside the agent tank, thereby improving the drying effect and efficiency of the drying box on the agent in the agent tank. At the same time, it avoids the failure of local desiccant due to excessive moisture absorption saturation, realizes uniform loss of the desiccant through continuous turning, extends the overall service life, prevents the agent from caking due to moisture, and forms a synergistic protection with stirring to ensure that the material remains in a flowable state for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 is a schematic diagram of the overall internal structure of the present invention;

[0034] Figure 3 is a schematic diagram of the positional relationship structure between the rotating illuminating lamp and the rear rolling door of the present invention;

[0035] Figure 4 is a schematic diagram of the positional relationship structure between the box body and the waste box of the present invention;

[0036] Figure 5 is a schematic diagram of the positional relationship structure between the box body and the water inlet pipe of the present invention;

[0037] Figure 6 is a schematic diagram of the positional relationship structure between the filter box and the turntable of the present invention;

[0038] Figure 7 is of the present invention Figure 6 partial enlarged schematic diagram of structure A;

[0039] Figure 8 is a schematic diagram of the positional relationship structure between the flow stirring plate and the fixed rod of the present invention;

[0040] Figure 9 is a schematic diagram of the positional structure between the fixed connecting plate and the reciprocating lead screw in FIG. of the present invention.

[0041] In the figure: 101, fire truck body; 1, long row of red warning lights; 2, chassis; 3, sandwich type power take-off; 4, transfer case; 5, carriage; 6, rolling shutter of high-pressure pump room; 7, high-pressure water hose; 8, lighting lamp; 9, equipment room of high-pressure pump room; 10, sub-control unit assembly; 11, water storage tank; 12, water cannon; 13, low-pressure water hose; 14, warning lamp; 15, equipment room of low-pressure pump room; 16, ladder; 17, main control unit assembly; 18, rotating lighting lamp; 19, rear rolling shutter door; 20, fire-fighting equipment accessories and clamping parts; 21, low-pressure water pump; 2101, low-pressure water outlet pipe; 2102, suction pipe; 22, water injection pipe; 23, high-pressure water outlet pipe; 24, high-pressure plunger pump; 25, hydraulic pump; 26, pipe one; 27, pipe two; 28, transmission shaft; 31, box body; 32, waste box; 33, motor; 41, water inlet pipe; 51, water outlet pipe; 61, rotating shaft; 62, filter box; 63, turntable; 64, bevel cutting plate; 65, sliding plate; 66, sliding rod; 67, scraper one; 68, fixing ring; 69, scraper two; 610, filter cartridge; 611, filter plate one; 71, fixing rod; 72, inclined plate; 73, turbulence generating plate; 74, fixing plate; 75, telescopic spring rod; 76, filter frame; 77, connecting plate; 78, cover plate; 79, leakage box; 710, filter plate two; 711, filter pipe; 81, connecting rod; 82, closing plate; 83, agent storage tank; 84, fixing connecting plate; 85, reciprocating lead screw; 86, discharge limiting blade; 87, material conveying pipe; 88, eccentric wheel; 89, drying box; 810, stirring plate; 811, stirring ring. Detailed implementation manners

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0043] Please refer to Figures 1-9, an embodiment of the present invention is: an intelligent multi-drive high and low pressure water tank fire truck, including a fire truck body 101, the fire truck body 101 is provided with a chassis 2, a carriage 5 is arranged on the fire truck body 101, the carriage 5 is provided with a front compartment, a middle compartment and a rear compartment, the front compartment is provided with a high-pressure plunger pump 24, the middle compartment is provided with a water storage tank 11, the rear compartment is provided with a low-pressure water pump 21, the high-pressure plunger pump 24 is connected to the water storage tank 11 through a pipe 26, the low-pressure water pump 21 is connected to the water storage tank 11 through a pipe 27, the high-pressure plunger pump 24 is provided with a high-pressure water outlet pipe 23, and the high-pressure water outlet pipe 23 is provided with valves and interfaces; the water storage tank 11 is provided with a water injection pipe 22, the low-pressure water pump 21 is provided with a water suction pipe 2102, a low-pressure water outlet pipe 2101 and a water cannon 12, and the low-pressure water outlet pipe 2101 is provided with valves and interfaces; an in-line power take-off 3 is arranged inside the fire truck body 101, the in-line power take-off 3 is connected to the gearbox of the chassis 2, and power is smoothly obtained from the gearbox. The in-line power take-off 3 is drivingly connected to a transfer case 4. The inside of the transfer case 4 is provided with a left output end, a right output end and a middle output end. The left output end is connected to the high-pressure plunger pump 24 through a coupling, the right output end is connected to a hydraulic pump 25 through a coupling, and the middle output end is connected to the low-pressure water pump 21 through a transmission shaft 28.

[0044] The front compartment is provided with a rolling shutter for the high-pressure pump room 6. Above the high-pressure plunger pump 24 in the front compartment, there is a high-pressure pump room equipment room 9 and high-pressure water hoses 7. The front compartment is provided with a sub-control unit assembly 10; on the side of the rear compartment, there is a low-pressure pump room equipment room 15 and low-pressure water hoses 13. The rear compartment is provided with a main control unit assembly 17. A rear rolling shutter door 19 is arranged at the rear of the rear compartment. Inside the rear rolling shutter door 19, there are fire fighting equipment accessories and clamping parts 20; a ladder 16 is arranged at the rear of the rear compartment. A rotating floodlight 18 is fixedly installed on the top of the carriage 5. Floodlights 8 and warning lights 14 are fixedly installed on both sides of the top of the carriage 5. A long row of red warning lights 1 is arranged on the top of the fire truck body 101.

[0045] The number of high-pressure water hoses 7 is set to four and is evenly distributed inside the front compartment. The number of low-pressure water hoses 13 is set to four and is evenly distributed inside the rear compartment.

[0046] A control method for an intelligent multi-drive high and low pressure water tank fire truck, using an intelligent multi-drive high and low pressure water tank fire truck, includes the following steps:

[0047] Step 1: Connect the water injection pipe 22 to a fire hydrant and inject water into the water storage tank 11 through the fire hydrant;

[0048] Step 2: Connect the high-pressure water hose 7 to the high-pressure water outlet pipe 23. Start the high-pressure plunger pump 24 through the sub-control unit assembly 10. After pressurizing the water in the water storage tank 11 by the high-pressure plunger pump 24, perform high-pressure spraying through the high-pressure water outlet pipe 23 and the high-pressure water hose 7;

[0049] Step 3: Connect the low-pressure water hose 13 to the low-pressure water outlet pipe 2101, and connect the suction pipe 2102 of the low-pressure water pump 21 to the external water source pipeline;

[0050] Step 4: Start the low-pressure water pump 21 through the main control unit assembly 17, and draw the external water source. After pressurization, form the first low-pressure output path: the water body sequentially performs medium-low pressure spraying through the low-pressure water outlet pipe 2101 and the low-pressure water hose 13;

[0051] Step 5: After the low-pressure water pump 21 draws the external water source and pressurizes it, synchronously form the second low-pressure output path: the water body performs spraying through the water cannon 12;

[0052] Step 6: Switch the water intake path of the low-pressure water pump 21 to the water storage tank 11 to form the third low-pressure output path: after the water in the water storage tank 11 is pressurized by the low-pressure water pump 21, perform medium-low pressure spraying through the low-pressure water outlet pipe 2101 and the low-pressure water hose 13;

[0053] Step 7: After the low-pressure water pump 21 draws the water in the water storage tank 11 and pressurizes it, synchronously form the fourth low-pressure output path: the water body performs spraying through the water cannon 12.

[0054] Working principle of this embodiment: This intelligent multi-drive high-low pressure water tank fire truck is equipped with an efficient power transmission system. The sandwich-type power take-off 3 is connected to the gearbox of the chassis 2, smoothly obtains power from the gearbox, and efficiently transmits it to the transfer case 4; there are three independent output ends, namely the left, right, and middle, inside the transfer case 4. Each output end realizes precise power distribution as required: the left output end drives the high-pressure plunger pump 24 through a high-strength coupling, which can provide strong power to meet the high-intensity operation requirements such as high-pressure fire extinguishing and long-range water spraying; the right output end is connected to the hydraulic pump 25 through a coupling to stably supply energy for various hydraulic operation equipment such as hydraulic shears and hydraulic jacks, which is suitable for complex working conditions such as demolition and lifting in emergency rescue; the middle output end drives the low-pressure water pump 21 through the transmission shaft 28 to ensure the stable operation of the large-flow and low-pressure water supply operation. Realize the multi-drive function, and the three power output modules cooperate with each other, endowing the fire truck with composite functions such as high-pressure precise fire extinguishing, low-pressure large-flow water supply, and hydraulic equipment drive, significantly improving the combat effectiveness and environmental adaptability of the vehicle in complex rescue scenarios; the water source path can be controlled through the intelligent control system. The intelligent control system has main and sub-control unit assemblies set at different positions to realize on-site control and interlock control, reducing the operation steps and processes and improving the emergency efficiency.

[0055] Connect the water injection pipe 22 to the fire hydrant and inject water into the water storage tank 11 through the fire hydrant; the water in the water storage tank 11 can be supplied to the high-pressure plunger pump 24 for high-pressure fire extinguishing and long-range water spraying operations; the water in the water storage tank 11 can also be supplied to the low-pressure water pump 21 for large-flow and low-pressure water supply operations through the low-pressure water outlet pipe 2101, or for spraying through the water cannon 12.

[0056] Connect the low-pressure water hose 13 to the low-pressure water outlet pipe 2101, and connect the suction pipe 2102 of the low-pressure water pump 21 to the external water source pipeline; start the low-pressure water pump 21 through the main controller assembly 17, and draw the external water source and pressurize it to form a first low-pressure output path: the water body sequentially passes through the low-pressure water outlet pipe 2101 and the low-pressure water hose 13 for medium-low pressure spraying; the low-pressure water pump 21 draws the external water source and pressurizes it to simultaneously form a second low-pressure output path: the water body is sprayed through the water cannon 12;

[0057] Please refer to Figures 1-9 , on the basis of the above embodiment, in another embodiment of the present invention, a filtering device is provided on the water injection pipe 22. The filtering device includes a box body 31, a waste box 32, a motor 33, a water inlet pipe 41, a water outlet pipe 51, a rotating shaft 61, a filtering box 62, a turntable 63, an inclined cutting plate 64, a sliding plate 65, a sliding rod 66, a first scraper 67, a fixing ring 68, a second scraper 69, a filter cartridge 610 and a first filter plate 611. The box body 31 is fixedly installed inside the water storage tank 11. The waste box 32 fixedly penetrates the surface of the box body 31. The motor 33 is fixedly installed inside the box body 31. The water inlet pipe 41 fixedly penetrates the surface of the box body 31. The water outlet pipe 51 fixedly penetrates the surface of the box body 31. The rotating shaft 61 is fixedly installed at the output end of the motor 33. The filtering box 62 is fixedly installed on the inner wall of the box body 31. The turntable 63 is fixedly installed on the circumferential surface of the rotating shaft 61. The inclined cutting plate 64 is fixedly installed on the surface of the turntable 63. The sliding plate 65 is slidably installed on the circumferential surface of the rotating shaft 61. The sliding rod 66 fixedly penetrates the surface of the sliding plate 65. The first scraper 67 is fixedly installed at one end of the sliding rod 66 away from the sliding plate 65. The fixing ring 68 is fixedly installed on the circumferential surface of the rotating shaft 61. The second scraper 69 is fixedly installed on the circumferential surface of the fixing ring 68. The filter cartridge 610 is fixedly installed at the bottom of the inner wall of the box body 31. The first filter plate 611 is fixedly installed on the top of the filter cartridge 610. The filtered water enters the water outlet pipe 51 through the filter cartridge 610 and undergoes the next operation. Start the motor 33 when the water flow enters the inside of the box body 31.

[0058] The water injection pipe 22 is connected to the water inlet pipe 41, the water outlet pipe 51 is connected to the water storage tank 11, the surface of the inclined cutting plate 64 is set as the first arc surface, a spring is arranged between the turntable 63 and the sliding plate 65, the first scraper 67 is slidably connected to the inner wall of the box body 31, the second scraper 69 contacts the surface of the first filter plate 611, a discharge port is formed on the surface of the waste box 32, and the first scraper 67 moves upward to scrape off the impurities adhering to the inner wall of the box body 31, which can effectively improve the working efficiency of the filtration system, extend the service life of the equipment, and reduce the maintenance cost.

[0059] The filtering device is provided with a waste collection device, and the waste collection device includes a fixed rod 71, an inclined plate 72, a flow stirring plate 73, a fixed plate 74, a filter frame 76, a connecting plate 77, a cover plate 78, a leakage box 79, a second filter plate 710 and a filter pipe 711. The fixed rod 71 is fixedly installed on the surface of the sliding plate 65, the inclined plate 72 is fixedly installed at the bottom of the inner wall of the filtering box 62, the flow stirring plate 73 is fixedly installed at one end of the fixed rod 71 away from the sliding plate 65, the fixed plate 74 is fixedly installed on the inner wall of the waste box 32, the filter frame 76 is slidably installed on the inner wall of the waste box 32, the connecting plate 77 is fixedly installed on the surface of the filter frame 76, the cover plate 78 is fixedly installed at one end of the connecting plate 77 away from the filter frame 76, the leakage box 79 is fixedly installed on the surface of the waste box 32, the second filter plate 710 is fixedly installed on the inner wall of the leakage box 79, and the filter pipe 711 fixedly penetrates the bottom of the leakage box 79. At this time, the material opening of the filter frame 76 coincides with the discharge port of the waste box 32, and at this time, the water flow flushes the impurities into the inside of the leakage box 79 through the material opening.

[0060] A telescopic spring rod 75 is fixedly installed on the top of the fixed plate 74, the free end of the telescopic spring rod 75 is fixedly connected to the bottom of the filter frame 76, the filter pipe 711 fixedly penetrates the surface of the waste box 32, a material opening is formed on the surface of the filter frame 76, and the impurities flow into the inside of the filter frame 76 along the waste box 32. When the impurities inside the filter frame 76 accumulate to a certain amount, the impurities will reduce the filtering effect of the filter frame 76.

[0061] The filtering device is provided with a corrosion inhibition and disinfection device, which includes a connecting rod 81, a closing plate 82, a reagent tank 83, a fixed connecting plate 84, a reciprocating lead screw 85, a discharge limiting blade 86, a feeding pipe 87, an eccentric wheel 88, a drying box 89 and a stirring plate 810. The connecting rod 81 is fixedly installed at the bottom of the filter frame 76. The closing plate 82 is fixedly installed at one end of the connecting rod 81 away from the filter frame 76. The reagent tank 83 is fixedly installed on the surface of the waste box 32. The fixed connecting plate 84 is fixedly installed on the circumferential surface of the connecting rod 81. The reciprocating lead screw 85 is rotatably installed at the bottom of the reagent tank 83. The discharge limiting blade 86 is fixedly installed on the circumferential surface of the reciprocating lead screw 85. The feeding pipe 87 fixedly penetrates through the bottom of the reagent tank 83. The eccentric wheel 88 is fixedly installed on the circumferential surface of the reciprocating lead screw 85. The drying box 89 is fixedly installed on the surface of the reagent tank 83. The stirring plate 810 is slidably installed on the inner wall of the drying box 89. A stirring ring 811 is fixedly installed on the circumferential surface of the reciprocating lead screw 85. The rotation of the reciprocating lead screw 85 drives the discharge limiting blade 86 to rotate, and the rotation of the discharge limiting blade 86 restricts the feeding pipe 87 so that it cannot discharge materials.

[0062] A round hole is formed on the surface of the closing plate 82. The fixed connecting plate 84 is slidably connected to the circumferential surface of the reciprocating lead screw 85, and the fixed connecting plate 84 is threadedly connected to the reciprocating lead screw 85. The feeding pipe 87 fixedly penetrates through the surface of the waste box 32. The fixed connecting plate 84 is slidably connected to the inner wall of the reagent tank 83. A desiccant is provided on the inner wall of the drying box 89. The movement of the stirring plate 810 stirs the desiccant accumulated inside the drying box 89, increasing the contact area between the desiccant inside the drying box 89, the air inside the reagent tank 83 and it.

[0063] During the operation of this embodiment: When water flows through the water inlet pipe 41 into the interior of the filter box 62, impurities in the water flow will be isolated inside the filter box 62, and the water will filter out through its filter holes and enter the interior of the box body 31. Through the first filter plate 611, smaller impurities will be blocked on its surface at this time. Subsequently, the water flow enters the interior of the filter cylinder 610, and impurities or grease will be blocked inside it. At this time, the filtered water enters the water outlet pipe 51 through the filter cylinder 610 and proceeds to the next operation. When the water flow enters the interior of the box body 31, the motor 33 is started. The output end of the motor 33 rotates to drive the rotating shaft 61 to rotate. At the same time, the rotating shaft 61 rotates to drive the turntable 63 to rotate. At the same time, the turntable 63 rotates to drive the inclined cutting plate 64 to rotate. The inclined cutting plate 64 rotates to contact and squeeze the sliding plate 65 to move upward. The sliding plate 65 moves to drive the sliding rod 66 to move. At the same time, the sliding rod 66 moves to drive the first scraper 67 to move upward. The first scraper 67 moves upward to scrape off the impurities attached to the inner wall of the box body 31, which can effectively improve the working efficiency of the filtration system, extend the service life of the equipment, reduce the maintenance cost, and maintain a stable flow rate and high-quality filtration effect. At the same time, the rotating shaft 61 rotates to drive the fixed ring 68 to rotate. At the same time, the fixed ring 68 rotates to drive the second scraper 69 to rotate. The second scraper 69 rotates to scrape off the impurities attached to the surface of the first filter plate 611, which can effectively remove these accumulated impurities, prevent the filter from losing its effect due to blockage, keep the filter unobstructed, enable the filter to maintain a high filtration efficiency for a longer time, reduce the frequency of replacing the filter element or cleaning the filter plate, and thus reduce the maintenance cost.

[0064] When the fixed rod 71 moves upward under the action of the sliding plate 65 and drives the flow stirring plate 73 to move, the flow stirring plate 73 moves to stir the impurities deposited on the surface of the inclined plate 72 so that they flow along the water flow to the waste box 32, continuously stirring the fluid, avoiding the precipitation of impurities inside the filter, ensuring that the impurities are carried away, preventing deposition, and thus maintaining the stability of the filtration efficiency. Subsequently, the impurities flow into the interior of the filter frame 76 along the waste box 32. When the impurities inside the filter frame 76 accumulate to a certain amount, the impurities will reduce the filtration effect of the filter frame 76, causing the water pressure to gradually increase and driving the filter frame 76 to move downward. At the same time, the filter frame 76 moves to drive the connecting plate 77 to move downward. The connecting plate 77 moves downward to drive the cover plate 78 to move. When the cover plate 78 moves until it blocks the water inlet of the waste box 32, at this time, the opening of the filter frame 76 coincides with the outlet of the waste box 32. At this time, the water flow flushes the impurities into the interior of the leakage box 79 through the opening. The water flow flows through the second filter plate 710 into the interior of the filter pipe 711 and then flows into the box body 31. At the same time, the impurities accumulate on the surface of the second filter plate 710, which is convenient for subsequent centralized treatment. The impurities are collected centrally and are easier to handle, avoiding the situation of increasing the cleaning difficulty due to the dispersion of dirt, reducing the frequency and workload of manual cleaning, improving the cleaning efficiency, and reducing the labor cost.

[0065] When the connecting plate 77 moves downward under the action of water pressure to drive the connecting rod 81 to move, and at the same time the connecting rod 81 moves to drive the fixed connecting plate 84 to move downward. Since the fixed connecting plate 84 is threadedly connected to the reciprocating lead screw 85, the downward movement of the fixed connecting plate 84 drives the reciprocating lead screw 85 to rotate. The rotation of the reciprocating lead screw 85 drives the stirring ring 811 to rotate, stirring the corrosion inhibitor disinfectant accumulated inside the agent tank 83 evenly and at the same time breaking up the caked or sticky agent, avoiding the blockage of the dosing channel by the agent, ensuring the full mixing of the corrosion inhibitor and the disinfectant, improving the stability of the components in the subsequent dosing. At the same time, the movement of the connecting rod 81 drives the closing plate 82 to move downward. The downward movement of the closing plate 82 drives the circular hole to move until it coincides with the pipe orifice at one end of the feed pipe 87 close to the connecting rod 81. At this time, the agent inside the agent tank 83 is fed into the waste tank 32 through the feed pipe 87, preventing the water inside the waste tank 32 from flowing back into the agent tank 83, which may cause the agent to become damp or dissolve. At the same time, the rotation of the reciprocating lead screw 85 drives the discharge limiting blade 86 to rotate. The rotation of the discharge limiting blade 86 restricts the feed pipe 87 so that it cannot discharge. Then, after rotating one week, the restriction on the feed pipe 87 is released, realizing the quantitative dosing of the agent inside the agent tank 83, avoiding excessive waste of the agent or little effect due to too little agent. The rotation of the reciprocating lead screw 85 drives the eccentric wheel 88 to rotate under the action of the fixed connecting plate 84. The rotation of the eccentric wheel 88 contacts and presses the stirring plate 810 to move. The movement of the stirring plate 810 stirs the desiccant accumulated inside the drying box 89, increasing the contact area between the desiccant inside the drying box 89, the air inside the agent tank 83 and the desiccant, thereby improving the drying effect and efficiency of the drying box 89 on the inside of the agent tank 83. At the same time, it avoids the failure of local desiccant due to excessive moisture absorption saturation. Through continuous turning, the uniform loss of the desiccant is realized, prolonging the overall service life, avoiding the caking of the agent due to dampness, forming a synergistic protection with stirring, and ensuring that the material is in a flowable state for a long time.

[0066] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent multi-drive high and low pressure water tank fire truck, including a fire truck body (101), a carriage (5) is arranged on the fire truck body (101), and it is characterized in that: The carriage (5) is provided with a front compartment, a middle compartment and a rear compartment. The front compartment is provided with a high-pressure plunger pump (24), the middle compartment is provided with a water storage tank (11), and the rear compartment is provided with a low-pressure water pump (21). The high-pressure plunger pump (24) is connected to the water storage tank (11) through a first pipeline (26), and the low-pressure water pump (21) is connected to the water storage tank (11) through a second pipeline (27). The high-pressure plunger pump (24) is provided with a high-pressure water outlet pipe (23), the water storage tank (11) is provided with a water injection pipe (22), and the low-pressure water pump (21) is provided with a water suction pipe (2102), a low-pressure water outlet pipe (2101) and a water cannon (12). Inside the fire truck body (101), there is a sandwich-type power take-off (3). The sandwich-type power take-off (3) is drivingly connected to a transfer case (4). Inside the transfer case (4), there are a left output end, a right output end and a middle output end. The left output end is connected to the high-pressure plunger pump (24) through a coupling, the right output end is connected to a hydraulic pump (25) through a coupling, and the middle output end is connected to the low-pressure water pump (21) through a transmission shaft (28).

2. The intelligent multi-drive high and low pressure water tank fire truck according to claim 1, wherein: The front compartment is provided with a rolling shutter for the high-pressure pump room (6). Above the high-pressure plunger pump (24) in the front compartment, there is a high-pressure pump room equipment room (9) and a high-pressure water hose (7). The front compartment is provided with a sub-controller assembly (10). On the side of the rear compartment, there is a low-pressure pump room equipment room (15) and a low-pressure water hose (13). The rear compartment is provided with a main controller assembly (17). At the rear of the rear compartment, there is a rear rolling shutter door (19). Inside the rear rolling shutter door (19), there are fire fighting equipment accessories and clamping parts (20). On the top of the carriage (5), a rotating lighting lamp (18) is fixedly installed. On both sides of the top of the carriage (5), lighting lamps (8) and warning lamps (14) are fixedly installed. On the top of the fire truck body (101), there is a long row of red warning lights (1).

3. The intelligent multi-drive high and low pressure water tank fire truck according to claim 2, wherein: The number of the high-pressure water hoses (7) is set to four, and they are evenly distributed inside the front compartment. The number of the low-pressure water hoses (13) is set to four, and they are evenly distributed inside the rear compartment.

4. An intelligent multi-drive high and low pressure water tank fire truck according to claim 3, characterized in that: A filtering device is provided on the water injection pipe (22). The filtering device includes a box body (31), a waste box (32), a motor (33), a water inlet pipe (41), a water outlet pipe (51), a rotating shaft (61), a filtering box (62), a turntable (63), an inclined cutting plate (64), a sliding plate (65), a sliding rod (66), a first scraper (67), a fixing ring (68), a second scraper (69), a filter cartridge (610) and a first filter plate (611). The box body (31) is fixedly installed inside the water storage tank (11). The waste box (32) fixedly penetrates the surface of the box body (31). The motor (33) is fixedly installed inside the box body (31). The water inlet pipe (41) fixedly penetrates the surface of the box body (31). The water outlet pipe (51) fixedly penetrates the surface of the box body (31). The rotating shaft (61) is fixedly installed at the output end of the motor (33). The filtering box (62) is fixedly installed on the inner wall of the box body (31). The turntable (63) is fixedly installed on the circumferential surface of the rotating shaft (61). The inclined cutting plate (64) is fixedly installed on the surface of the turntable (63). The sliding plate (65) is slidably installed on the circumferential surface of the rotating shaft (61). The sliding rod (66) fixedly penetrates the surface of the sliding plate (65). The first scraper (67) is fixedly installed at one end of the sliding rod (66) away from the sliding plate (65). The fixing ring (68) is fixedly installed on the circumferential surface of the rotating shaft (61). The second scraper (69) is fixedly installed on the circumferential surface of the fixing ring (68). The filter cartridge (610) is fixedly installed at the bottom of the inner wall of the box body (31). The first filter plate (611) is fixedly installed on the top of the filter cartridge (610).

5. An intelligent multi-drive high and low pressure water tank fire truck according to claim 4, characterized in that: The water injection pipe (22) is communicated with the water inlet pipe (41). The water outlet pipe (51) is communicated with the water storage tank (11). The surface of the inclined cutting plate (64) is set as a first arc surface. A spring is arranged between the turntable (63) and the sliding plate (65). The first scraper (67) is slidably connected with the inner wall of the box body (31). The second scraper (69) is in contact with the surface of the first filter plate (611). A discharge port is formed on the surface of the waste box (32).

6. The intelligent multi-drive high and low pressure water tank fire truck according to claim 5, characterized in that: The filtering device is provided with a waste collection device, and the waste collection device includes a fixed rod (71), an inclined plate (72), a flow stirring plate (73), a fixed plate (74), a filter frame (76), a connecting plate (77), a cover plate (78), a leakage box (79), a second filter plate (710), and a filter pipe (711). The fixed rod (71) is fixedly installed on the surface of the sliding plate (65), the inclined plate (72) is fixedly installed at the bottom of the inner wall of the filtering box (62), the flow stirring plate (73) is fixedly installed at one end of the fixed rod (71) away from the sliding plate (65), the fixed plate (74) is fixedly installed on the inner wall of the waste box (32), the filter frame (76) is slidably installed on the inner wall of the waste box (32), the connecting plate (77) is fixedly installed on the surface of the filter frame (76), the cover plate (78) is fixedly installed at one end of the connecting plate (77) away from the filter frame (76), the leakage box (79) is fixedly installed on the surface of the waste box (32), the second filter plate (710) is fixedly installed on the inner wall of the leakage box (79), and the filter pipe (711) fixedly penetrates through the bottom of the leakage box (79).

7. An intelligent multi-drive high and low pressure water tank fire truck according to claim 6, characterized in that: A telescopic elastic rod (75) is fixedly installed at the top of the fixed plate (74), the free end of the telescopic elastic rod (75) is fixedly connected to the bottom of the filter frame (76), the filter pipe (711) fixedly penetrates through the surface of the waste box (32), and a material opening is formed on the surface of the filter frame (76).

8. An intelligent multi-drive high and low pressure water tank fire truck according to claim 7, characterized in that: The filtering device is provided with a corrosion inhibition and disinfection device, and the corrosion inhibition and disinfection device includes a connecting rod (81), a closing plate (82), a reagent box (83), a fixed connecting plate (84), a reciprocating lead screw (85), a discharge limiting blade (86), a feeding pipe (87), an eccentric wheel (88), a drying box (89), and a stirring plate (810). The connecting rod (81) is fixedly installed at the bottom of the filter frame (76), the closing plate (82) is fixedly installed at one end of the connecting rod (81) away from the filter frame (76), the reagent box (83) is fixedly installed on the surface of the waste box (32), the fixed connecting plate (84) is fixedly installed on the circumferential surface of the connecting rod (81), the reciprocating lead screw (85) is rotatably installed at the bottom of the reagent box (83), the discharge limiting blade (86) is fixedly installed on the circumferential surface of the reciprocating lead screw (85), the feeding pipe (87) fixedly penetrates through the bottom of the reagent box (83), the eccentric wheel (88) is fixedly installed on the circumferential surface of the reciprocating lead screw (85), the drying box (89) is fixedly installed on the surface of the reagent box (83), the stirring plate (810) is slidably installed on the inner wall of the drying box (89), and a stirring ring (811) is fixedly installed on the circumferential surface of the reciprocating lead screw (85).

9. An intelligent multi-drive high and low pressure water tank fire truck according to claim 8, characterized in that: The surface of the closed plate (82) is provided with round holes. The fixed connecting plate (84) is slidably connected to the circumferential surface of the reciprocating lead screw (85). The fixed connecting plate (84) is threadedly connected to the reciprocating lead screw (85). The feeding pipe (87) fixedly penetrates the surface of the waste box (32). The fixed connecting plate (84) is slidably connected to the inner wall of the agent box (83). The inner wall of the drying box (89) is provided with a desiccant.

10. A control method for an intelligent multi-drive high and low pressure water tank fire truck, characterized in that, Using an intelligent multi-drive high and low pressure water tank fire truck as described in claim 9, includes the following steps: Step 1: Connect the water injection pipe (22) to the fire hydrant, and inject water into the water storage tank (11) through the fire hydrant. Step 2: Connect the high-pressure water hose (7) to the high-pressure water outlet pipe (23). Start the high-pressure plunger pump (24) through the sub-control unit assembly (10). After pressurizing the water in the water storage tank (11) by the high-pressure plunger pump (24), perform high-pressure spraying through the high-pressure water outlet pipe (23) and the high-pressure water hose (7). Step 3: Connect the low-pressure water hose (13) to the low-pressure water outlet pipe (2101), and connect the suction pipe (2102) of the low-pressure water pump (21) to the external water source pipeline. Step 4: Start the low-pressure water pump (21) through the main control unit assembly (17), and extract the external water source and pressurize it to form a first low-pressure output path: the water body sequentially passes through the low-pressure water outlet pipe (2101) and the low-pressure water hose (13) to perform medium and low-pressure spraying. Step 5: The low-pressure water pump (21) extracts the external water source and pressurizes it to simultaneously form a second low-pressure output path: the water body is sprayed through the water cannon (12). Step 6: Switch the water intake path of the low-pressure water pump (21) to the water storage tank (11) to form a third low-pressure output path: the water in the water storage tank (11) is pressurized by the low-pressure water pump (21), and medium and low-pressure spraying is performed through the low-pressure water outlet pipe (2101) and the low-pressure water hose (13). Step 7: The low-pressure water pump (21) extracts the water in the water storage tank (11) and pressurizes it to simultaneously form a fourth low-pressure output path: the water body is sprayed through the water cannon (12).

Images