CN110270036A - Polar region lifesaving fire fighting truck - Google Patents

Abstract

The present invention relates to the technical field of fire trucks, in particular to polar life-saving fire trucks. Its structure includes a vehicle frame, a front cab and a rear cab located at both ends of the frame, a compartment arranged between the two cabs, and front wheels and middle wheels. and the rear wheels, including the storage battery installed in the compartment, the floating drive axle system used to drive the fire truck forward and backward, the universal steering system used to control the steering of the front wheels and rear wheels in narrow passages, and the A micro-pressurized breathing system that supplies high-pressure air under heavily polluted air conditions, a cooling system that reduces body temperature, and a central control unit for controlling various systems. The polar lifesaving fire truck can run normally and smoothly in the extremely harsh environment of hypoxia, high temperature and fire, and can save lives conveniently and safely, with strong passability.

Description

polar rescue fire truck

technical field

The invention relates to the technical field of fire trucks, in particular to polar lifesaving fire trucks.

Background technique

In various fires, there are often people trapped in the fire scene who need to be rescued urgently. However, due to the extremely dangerous situation and lack of oxygen in the fire scene, existing fire engines cannot approach the fire scene. Although firefighters rely on wearing fire-resistant protective clothing and strapped air breathing apparatus, after crossing the fire scene for a long time, it was too late to save people, and they had to evacuate first due to the exhaustion of oxygen, and some even died in the fire scene. sacrificed inside. Although some fire engines quickly approached the fire scene in the early stage, when the smoke was billowing and the passage narrowed or there were obstacles, the fire engines could not start due to lack of oxygen and could no longer drive out. They had already been rescued in the car The crowd, the firefighters in the car and the fire truck were lost in the blaze. For example, when a fire breaks out in a tunnel, it is more difficult for existing fire trucks to approach the fire scene. When some are still 800 meters away from the fire scene, the engine will start to shut down due to lack of oxygen, and the fire truck will not be able to drive in. The firefighters could not start the fire pump to pump water to put out the fire, nor could they rescue the trapped people, causing many people in distress to lose their lives due to suffocation. If you stay in an oxygen-deficient environment for a long time, after the air in the respirator is exhausted, the lives of firefighters cannot be guaranteed.

Under these extremely harsh environments above, existing fire trucks all depend on oxygen because of their drive and self-protection, and are powerless at all, thereby failing to achieve the purpose of rescue. Therefore, there is an urgent need to study fire trucks that can normally and smoothly travel and can save lives under various extreme harsh environments.

Contents of the invention

The object of the present invention is to address the deficiencies in the prior art, and provide a polar life-saving fire truck, which can run normally and smoothly under the extremely harsh environment of lack of oxygen, high temperature, and fire, and can be convenient and safe. save lives.

Provide polar rescue and firefighting vehicles, including frame, front cab and rear cab located at both ends of the frame, compartment between the two cabs, front wheels, middle wheels and rear wheels, and the compartment set in the compartment Battery, floating drive axle system used to drive the fire truck forward and backward, universal steering system used to control the steering of front and rear wheels in narrow passages, micro-increasing system used to provide high-pressure air under conditions of lack of oxygen or severe air pollution Air pressure breathing system, a cooling system that can reduce the temperature of the body, and a central control unit for controlling various systems; of which:

The floating drive axle system includes a floating drive axle and a floating device for driving the intermediate wheels to rotate, the floating drive axle is connected to the vehicle frame through the floating device, and the floating drive axle is connected to the vehicle frame through an electronic control system. The battery is electrically connected, and the electronic control system is electrically connected to the central control unit:

The universal steering system includes a front drive axle for driving the front wheels to turn, a rear drive axle for driving the rear wheels to turn, and a front steering hydraulic system and a rear steering hydraulic system respectively connected to the front drive axle and the rear drive axle , the front steering hydraulic system and the rear steering hydraulic system are electrically connected to the central control unit.

In the above technical solution, the micro-pressurized breathing system includes a set of high-pressure gas cylinders arranged in the compartment and an air release pipe connected to the high-pressure air cylinder set, and the air release pipe respectively extends to the front cab and the rear In the cab, a plurality of venting nozzles are provided on the vent pipes in the front cab and the rear cab.

In the above technical solution, a pressure reducing valve, a flow control valve and a flow meter are provided on the connecting pipeline between the air release pipe and the high-pressure gas cylinder group, and the flow control valve and flow meter are respectively electrically connected to the central control unit.

In the above technical solution, the cooling system includes a water tank, a fire pump and several nozzles located on the fire truck, the water inlet of the fire pump is connected to the water tank, and the outlet of the fire pump is The water port is connected with the nozzle through a water supply pipeline.

In the above technical solution, the nozzle is arranged on the roof and/or bottom of the fire truck.

In the above technical solution, the universal steering system further includes a hydraulic oil tank, and the hydraulic oil tank is respectively connected to the front steering hydraulic system and the rear steering hydraulic system through oil supply pipelines.

In the above technical solution, an electric hydraulic pump is arranged on the oil supply pipeline, and the electric hydraulic pump is connected to the battery.

In the above technical solution, both the front wheels and the rear wheels are provided with rotation angle sensors, and the rotation angle sensors are electrically connected to the central control unit.

In the above technical solution, both the front cab and the rear cab are provided with control panels electrically connected to the central control unit.

In the above technical solution, both the front cab and the rear cab are provided with steering wheels electrically connected to the central control unit.

Beneficial effects of the present invention:

When the polar lifesaving fire truck of the present invention arrives at or is about to fire, under the condition of hypoxia and automatic extinguishment of the engine, the battery, electric control system and floating drive axle system are started immediately, and the floating drive axle is sunk in place and locked by the floating device position, the floating drive axle drives the middle wheel to rotate, thereby driving the fire truck to move forward or backward; in the case of hypoxia or serious air pollution, immediately close all windows and doors, start the micro-pressurized breathing system in the car, and The fire engine provides high-pressure air, which slightly increases the air pressure inside the vehicle to prevent toxic gases from entering the vehicle and ensure the breathing safety of the occupants; when the outside temperature is too high or the fire engine is threatened by fire, the cooling system is activated immediately, In this way, the temperature on the outside of the vehicle body can be reduced, preventing the heat from outside the vehicle from being transmitted to the inside of the vehicle and causing the temperature inside the vehicle to be too high, and at the same time preventing the fire truck itself from being burned; The steering command of the steering wheel calculates the theoretical steering angle of the front and rear wheels, and then drives the various steering modes of the front and rear wheels, which can be switched at will; when the fire truck cannot turn around in a narrow passage, the front and rear cabs can perform two-way driving operations , no need to turn around. Therefore, compared with the prior art, the present invention has the following advantages:

(1) The polar lifesaving fire truck can save lives conveniently and safely in the extreme environment of the fire scene;

(2) Under the extreme conditions of hypoxia and high temperature, it can drive normally and smoothly;

(3) In the extreme environment of the fire scene, it can form an environment for people to survive in the car, with safe breathing and suitable temperature;

(4) It has strong passability, and can realize the functions of translational movement of the fire truck, turning in place, right-angle turning on narrow roads, obstacle avoidance, and two-way driving.

Description of drawings

The present invention is further described by using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. For those of ordinary skill in the art, without paying creative work, other embodiments can also be obtained according to the following accompanying drawings Attached picture.

Fig. 1 is a schematic structural view of the polar lifesaving and firefighting vehicle of the present invention.

Fig. 2 is a structural schematic diagram of another angle of the polar life-saving and fire-fighting vehicle of the present invention.

Fig. 3 is a schematic diagram of the working principle of the floating drive axle system of the polar lifesaving and firefighting vehicle of the present invention.

Fig. 4 is a schematic diagram of the working principle of the universal steering system of the polar life-saving and fire-fighting vehicle of the present invention.

Fig. 5 is a schematic diagram of the working principle of the micro-pressurized breathing system of the polar lifesaving fire fighting vehicle of the present invention.

Reference signs:

Front cab 1, control panel 11, rear cab 2, compartment 3, battery 4;

Floating drive axle system 5, floating drive axle 51, floating device 52, electric control system 53;

Universal steering system 6, front drive axle 61, rear drive axle 62, front steering hydraulic system 63, rear steering hydraulic system 64, hydraulic oil tank 65, angle sensor 66, steering wheel 67;

Micro-pressurized breathing system 7, high-pressure gas cylinder group 71, air release pipe 72, air release nozzle 721, pressure reducing valve 73, flow control valve 74, flow meter 75;

Cooling system 8, water tank 81, fire pump 82, water supply pipeline 83, nozzle 831;

Central control unit 9;

Front wheel 10, rear wheel 20, middle wheel 30.

Detailed ways

The present invention is further described in conjunction with the following examples.

The polar lifesaving and fire truck of this embodiment, as shown in Figures 1 to 5, includes a vehicle frame, a front cab 1 and a rear cab 2 positioned at two ends of the frame, a compartment 3 arranged between the two cabs, and a front cab. The wheels 10, the middle wheels 30 and the rear wheels 20 also include a storage battery 4 arranged in the compartment 3, a floating drive axle system 5 for driving the fire truck forward and backward, and a vehicle for controlling the movement of the front wheels 10 and the rear wheels 20 in the narrow passage. The universal steering system 6 for steering, the micro-pressurized breathing system 7 for providing high-pressure air under the condition of hypoxia or severe air pollution, the cooling system 8 for reducing the body temperature, and the central control unit 9 for controlling various systems; front Both the cab 1 and the rear cab 2 are provided with a control panel 11 electrically connected to the central control unit 9, which is convenient for the driver to operate.

In this embodiment, as shown in Figure 3, the floating drive axle system 5 includes a floating drive axle 51 and a floating device 52 for driving the rotation of the intermediate wheel 30, the floating drive axle 51 is located below the frame of the fire truck middle part, and the floating drive axle 51 is connected to the vehicle frame through the floating device 52, the floating drive axle 51 is electrically connected to the battery 4 through the electronic control system 53, the electronic control system 53 is electrically connected to the central control unit 9, and the control panels 11 of the front cab 1 and the rear cab 2 Circuit connection is made with the electric control system 53 through the central control unit 9 . In the case of hypoxia and automatic extinguishing of the engine, the working principle of the fire truck running freely is: operate the control panel 11 in the front cab 1 or the rear cab 2, and control the floating device 52 through the central control unit 9 to make the floating The drive axle 51 is lowered to a suitable driving position, and then the central control unit 9 sends an instruction to the electronic control system 53 to control the battery 4 to provide power to the motor of the floating drive axle 51, thereby driving the middle wheel 30 to rotate, so that the fire truck can run forward and backward. At the same time, the compressed air power source is provided to the brake system through the electric air pump, so that the brake system can operate normally. In this way, the fire truck can travel freely normally.

In this embodiment, as shown in FIG. 4 , the universal steering system 6 includes a front drive axle 61 for driving the front wheels 10 to turn, a rear drive axle 62 for driving the rear wheels 20 to turn, and a front drive axle 61 and a rear drive axle 62 respectively. The front steering hydraulic system 63, the rear steering hydraulic system 64 and the hydraulic oil tank 65 connected to the drive axle 62, the hydraulic oil tank 65 is connected with the front steering hydraulic system 63 and the rear steering hydraulic system 64 respectively through the oil supply pipeline, and the front steering hydraulic system 63 and The rear steering hydraulic system 64 is electrically connected to the central control unit 9, an electric hydraulic pump is arranged on the oil supply pipeline, and the electric hydraulic pump is connected to the battery 4, and the electric hydraulic pump provides hydraulic power to the front steering hydraulic system 63 and the rear steering hydraulic system 64 source, so that the universal steering system 6 can operate normally.

Specifically, the front cab 1 and the rear cab 2 are all provided with a steering wheel 67 electrically connected to the central control unit 9, the front wheels 10 and the rear wheels 20 are all provided with a corner sensor 66, and the corner sensor 66 is connected to the central control unit. 9 electrical connections.

The working principle of the universal steering system 6 is as follows: when the fire truck is difficult to pass through in a narrow passage, the control panel 11 is operated in the front cab 1 or the rear cab 2, and the most suitable steering mode and steering function are selected by buttons. The central control unit 9 calculates the theoretical steering angle of each front wheel 10 or rear wheel 20 according to the selected steering mode and steering function, and according to the steering command of the steering wheel 67 of the front cab 1 or rear cab 2, and then controls Front steering hydraulic system 63 and rear steering hydraulic system 64 . The pressure oil provided by the front steering hydraulic system 63 drives the hydraulic cylinder of the front drive axle 61 through the oil supply pipeline, thereby driving the front wheels to turn, and the pressure oil provided by the rear steering hydraulic system 64 drives the hydraulic cylinder of the rear drive axle 62 , thereby driving the rear wheels to steer. The steering angle sensors 66 of the front wheels 10 and the rear wheels 20 respectively send the real-time steering angle signals of the wheels to the central control unit 9, and the central control unit 9 adjusts the steering angles of the wheels in time according to the real-time steering angle signals of the wheels, so as to achieve the purpose of precise steering . The control program pre-sets a variety of steering modes: conventional steering mode, rear wheel steering mode, front and rear wheels simultaneously in the same direction mode, front and rear wheels simultaneously in different directions, front and rear wheels simultaneously independent steering mode, and side obstacle avoidance steering mode. Switch freely at any time; when the fire truck cannot turn around in a narrow passage, it can go to the rear cab 2 for driving operation, directly drive the fire truck out without turning around, and when changing the driving cab, it only needs to be in the front cab 1 Or the button on the control panel 11 in the rear cab 2 is switched, and all driving operations can be completed in any cab.

In the present embodiment, as shown in Fig. 1 and Fig. 5, the micro-pressurized breathing system 7 includes a high-pressure gas cylinder group 71 arranged in the compartment 3 and a deflation pipe 72 connected with the high-pressure gas cylinder group 71, and the deflation pipe 72 extends respectively To the front cab 1 and the rear cab 2 , a plurality of venting nozzles 721 are provided on the vent pipe 72 in the front cab 1 and the rear cab 2 . The connection pipeline between the deflation pipe 72 and the high-pressure cylinder group 71 is provided with a pressure reducing valve 73, a flow control valve 74 and a flow meter 75, and the control panels 11 of the front cab 1 and the rear cab 2 are controlled by the central control unit 9 and the flow rate Valve 74 and flow meter 75 are connected in circuit. Its working principle is as follows: in the case of hypoxia or serious air pollution, the control panel 11 is operated in the front cab 1 or the rear cab 2, and the flow control valve 74 is controlled by the central control unit 9 to open and adjust to the required flow rate Then the high-pressure air in the high-pressure gas cylinder group 71 is decompressed by the decompression valve, then passes through the flow control valve 74 and the flow meter 75, and finally passes through the air release pipe 72 to reach the front cab 1 and the rear cab 2 The air release nozzle 721 in the car is slowly released into the car, which slightly increases the air pressure in the car, so as to prevent toxic gas from entering the car and ensure the breathing safety of the people in the car. The signal of the flow meter 75 will be fed back to the central control unit 9 to confirm whether the flow meets the requirement or needs to be corrected.

In this embodiment, as shown in Figure 1, the cooling system 8 includes a water tank 81 and a fire pump 82 arranged in the compartment 3 and several nozzles 831 located on the fire truck, and the water inlet of the fire pump 82 is connected to the water tank 81 , the water outlet of the fire pump 82 is connected to the nozzle 831 through the water supply pipeline 83, and the nozzle 831 is arranged on the roof and/or bottom of the fire truck. When the external temperature is too high or the fire truck is threatened by fire, the fire water pump 82 extracts the water in the water tank 81, and after pressurization, it is sprayed out by the nozzle 831 on the roof and/or bottom of the car through the water supply pipeline 83, thereby Effectively reduce the temperature of the exterior of the vehicle body, prevent the heat from the outside of the vehicle from being transmitted to the interior of the vehicle and cause the temperature inside the vehicle to be too high, and at the same time prevent the fire truck itself from being burned.

Compared with the prior art, the present invention has the following advantages:

(1) The polar lifesaving fire truck can save lives conveniently and safely in the extreme environment of the fire scene;

(2) Under the extreme conditions of hypoxia and high temperature, it can drive normally and smoothly;

(3) In the extreme environment of the fire scene, it can form an environment for people to survive in the car, with safe breathing and suitable temperature;

(4) It has strong passability, and can realize the functions of translational movement of the fire truck, turning in place, right-angle turning on narrow roads, obstacle avoidance, and two-way driving.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the present invention, although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand , the technical solution of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solution of the present invention.

Claims (10)

1. lifesaving fire fighting truck in polar region including vehicle frame, the preceding driver's cabin positioned at vehicle frame both ends and rear driver's cabin, is set to two driving Compartment and front vehicle wheel, intermediate wheel and rear wheel between room, it is characterised in that: further include the electric power storage being set in compartment Pond, the floating for driving fire fighting truck front and back to exercise drive bridge system, for controlling front vehicle wheel and rear wheel in slype Turn to omnipotent steering system, under anoxic or the serious pollutional condition of air provide pressure-air micro- Positive Pressure Breathing system System can reduce the cooling system of vehicle body temperature and the central control unit for controlling each system；Wherein:

The driving bridge system that floats includes the floating drive axle and floating installation for driving intermediate wheel to rotate, the floating Drive axle is connect by the floating installation with the vehicle frame, and the floating drive axle passes through electric-control system and battery electricity Connection, the electric-control system are electrically connected with the central control unit:

The omnipotent steering system includes the front driving axle for driving front vehicle wheel to turn to, the rear-guard for driving rear wheel to turn to Dynamic bridge and the front steering hydraulic system and rear steering hydraulic system being connect respectively with the front driving axle and rear driving axle, it is described Front steering hydraulic system and rear steering hydraulic system are electrically connected with the central control unit.

2. lifesaving fire fighting truck in polar region according to claim 1, it is characterised in that: described is micro- Positive Pressure Breathing System including setting The high pressure gas cylinder group being placed in compartment and the bleeder pipe connecting with the high pressure gas cylinder group, the bleeder pipe extend respectively to institute State in preceding driver's cabin and rear driver's cabin, positioned at the preceding driver's cabin and after drive and offer multiple deflation on indoor bleeder pipe Mouth.

3. lifesaving fire fighting truck in polar region according to claim 2, it is characterised in that: the company of the bleeder pipe and high pressure gas cylinder group Adapter tube road is provided with pressure reducing valve, flow control valve and flowmeter, the flow control valve and flowmeter respectively with the center Control unit electrical connection.

4. lifesaving fire fighting truck in polar region according to claim 1, it is characterised in that: the cooling system includes being set to compartment Interior water pot and fire pump and several nozzles on fire fighting truck, the water inlet of the fire pump and the water pot The water outlet of connection, the fire pump is connect by water supply pipe with the nozzle.

5. lifesaving fire fighting truck in polar region according to claim 4, it is characterised in that: the nozzle is set to the roof of fire fighting truck The vehicle bottom and/or.

6. lifesaving fire fighting truck in polar region according to claim 1, it is characterised in that: the omnipotent steering system further includes hydraulic Fuel tank, the hydraulic oil container are connect with the front steering hydraulic system and rear steering hydraulic system respectively by oil feed line.

7. lifesaving fire fighting truck in polar region according to claim 6, it is characterised in that: be provided with electronic liquid on the oil feed line Press pump, the electric hydraulic pump are connect with the battery.

8. lifesaving fire fighting truck in polar region according to claim 1, it is characterised in that: the front vehicle wheel and rear wheel are provided with Corner inductor, the corner inductor are electrically connected with the central control unit.

9. according to claim 1 to lifesaving fire fighting truck in polar region described in 8 any one, it is characterised in that: the preceding driver's cabin and The control panel being electrically connected with the central control unit is provided in driver's cabin afterwards.

10. lifesaving fire fighting truck in polar region according to claim 1, it is characterised in that: in the preceding driver's cabin and rear driver's cabin It is provided with the steering wheel being electrically connected with the central control unit.