RU212123U1 - FIRE VEHICLE FOR EXTINGUISHING FIRE IN REMOTE AND ROUGH AREAS - Google Patents

Abstract

The utility model relates to fire fighting equipment. SUBSTANCE: fire truck for extinguishing fires in remote and difficult-to-pass areas contains a cross-country chassis, a cabin with fire extinguishing controls and a body part with fire-technical equipment. At the same time, it contains low-pressure wheels, and a part of the body with fire-technical equipment includes a frame on which a fire monitor and pressure pipelines are fixed. The frame is configured to enclose and hold the water tank. In addition, the part of the body with fire-technical equipment contains a fire pump, a container for a foam concentrate, a suction pipeline, a suction pipe located under the bottom and providing the possibility of water suction when the car is located directly at the water source. 6 w.p. f-ly. 2 ill.

Description

The utility model relates to fire engineering, in particular to vehicles for extinguishing fires in remote and difficult areas, including areas of flood zones, in which it is difficult to extinguish fires due to the lack of roads and the presence of flooded areas, which prevents the free use of a fire truck. technology.

In the prior art, a two-axle fire truck with increased ability to overcome obstacles such as threshold irregularities is known. It is equipped with two tanks of the same volume, one of which is located above the front axle of the car, the other - above its rear axle, there are also pumps for pumping liquid from one tank to another, in the initial state the tanks are half filled with liquid; while overcoming large threshold obstacles (more than half the radius of the wheel), the flame-extinguishing liquid is alternately pumped: first from the front tank to the rear one, which reduces the load on the front axle and, according to the theory of vehicle movement, facilitates the process of overcoming the threshold obstacle by the wheels of the front drive axle, then from the rear reservoir to the front one with obtaining the same beneficial effect when the wheels of the rear axle overcome the threshold obstacle (see RF patent No. 159342, class IPC A62C 27/00, publ. 10.02.2016).

In addition, a fire truck is known from the prior art, containing a base chassis with a cab, a tank container mounted on a subframe, a body with body compartments and fire-technical equipment installed on it, a fire pump. The longitudinal axis of the tank container is located perpendicular to the longitudinal axis of the vehicle frame, at least two body compartments are formed on both sides behind the tank and at least one - on each side of the body, below it (see RF patent No. 73792, class IPC А62С 27/00, published 06/10/2008).

Also known from the prior art is a fire truck, containing a cross-country chassis, on which an internal combustion engine (ICE) with a power take-off shaft, a cabin with fire extinguishing controls and a body with fire-technical equipment, including a fire assault ladder with a lifting drive, a tank for water with shut-off valves, water fire extinguishing means, fire pump, water pressure and water intake hoses, and the assault ladder is made sliding and installed on the roof of the car body, on the roof of the cabin of which there is a fire-fighting table for attaching fire extinguishing equipment. According to the technical solution, the car additionally contains a device for water protection of a fire truck from fire, a device for protecting car windows from damage by mechanical objects of a fire source, and a device for delivering fire extinguishing agents to a fire source. Moreover, the water protection device contains spray heads installed with the possibility of forming a water curtain from fire from the sides and from the front of the car, the car glass protection device is made in the form of removable metal meshes, and the device for delivering fire extinguishing agents to the fire source is made in the form of a removable tee, equipped with means of fastening to the rungs of the upper end of the assault ladder and couplings for connecting the tee at the inlet to the outlet of water pipes, and at the outlets - with fire extinguishing means (see RF patent No. 2723771, class IPC A62C 27/00, publ. .

The technical problem lies in the fact that the known technical means have limitations on their use in difficult areas with flooded areas that do not have access to the water source.

The objective of this utility model is to eliminate the above disadvantages.

The technical result consists in providing the possibility of extinguishing fires in remote and difficult-to-pass areas where there is no access to a water source, including in areas of flood zones.

The technical result is ensured by the fact that a fire truck for extinguishing fires in remote and difficult areas contains a cross-country chassis, a cabin with fire extinguishing controls and a part of the body with fire-technical equipment. At the same time, it contains low-pressure wheels, and a part of the body with fire-technical equipment includes a frame on which a fire monitor and pressure pipelines are fixed. The frame is configured to enclose and hold the water tank. In addition, the part of the body with fire-technical equipment contains a fire pump, a container for a foam concentrate, a suction pipeline, a suction pipe located under the bottom and providing the possibility of water suction when the car is located directly at the water source.

In accordance with special cases of execution, the device has the following design features.

The fire pump is made with a drive from a car engine or its own drive engine.

Suction pipeline equipped with butterfly valves, made with the ability to control fluid flows.

The body with fire-technical equipment additionally contains canisters, made with the possibility of accommodating suction hoses.

The frame is made adjacent to the cabin, and the fire monitor is fixed in the upper part of the frame from the side where it adjoins the cabin, while the mounting location of the fire monitor exceeds the height of the cabin.

The nominal pressure in the wheels is 0.05 atm.

The fire truck has a 6×6 wheel formula, while the vehicle is made with the same distance between the three axles.

The essence of this utility model is illustrated by the following illustrations:

Fig. 1 - axonometric image of the device;

Fig. 2 is a top view of the device.

The fire truck for extinguishing fires in remote and difficult areas is an all-terrain vehicle 1 on low pressure tires 2 for movement in the absence of roads. Low pressure tires provide buoyancy and cushioning properties. The nominal pressure in the wheels is 0.05 atm. At the same time, the vehicle contains a cross-country chassis, which is an all-terrain chassis mounted on a welded frame made of high-strength steel channels. The specified frame can be made in the form of a box.

The fire truck can be based on three driving axles with independent suspension of all wheels, while the vehicle is made with the same distance between the three axles and has a 6 × 6 wheel arrangement.

The drive motor with gearbox is mounted along the box with the output shafts located along the box. The drive motor in the box is located between the front and middle axles with an offset towards the latter. The fire truck uses a 2.693-liter gasoline engine with a power of 142.8 hp. With such an installation between the front and middle axles with an offset to the latter, the machine with filled tanks for water and foam concentrate has a uniform weight distribution along the axes.

All units that ensure the movement and maneuvering of a fire truck are located in the cavity of the box, therefore they are completely protected from dirt, snow, water and high temperatures. In the cavity of the box there is a drive motor with a gearbox, output shafts of the gearbox differential, front axle differential, rear differential and differential of the middle drive axles, steering gear and brake mechanisms of the drive axle wheels.

The device contains a cabin with fire extinguishing controls, while the cabin is formed by the front panoramic glass and side windows in the doors. The functionality of the machine allows you to supply a jet with remote control from the cab of the machine. It is also possible to supply water or a foaming agent solution to the pressure pipe, which is located at the rear of the car.

Part of the body is made with fire-technical equipment containing a fire pump 3 driven by a car engine or its own drive engine. A foam mixer is built into the fire pump 3, which is designed for dosing the foam concentrate supplied to the hose lines from the fire pump 3, as well as for its uniform supply and mixing with water. The foam mixer is an ejection hydraulic jet pump equipped with an adjusting valve, a foam mixer on/off valve, a check valve and a fitting for connecting to the foam concentrate solution supply line. The fire-fighting equipment also contains a water tank 4 with a volume of 1500 l, a container for a foam concentrate 5 with a volume of 100 l, a fire monitor 6, a pressure pipeline 7, a suction pipeline 8 equipped with butterfly valves to control fluid flows, a suction pipe located under the bottom of the vehicle and providing the possibility of suction of water when the car is located directly on the water source. At the same time, the part of the body with fire-technical equipment includes a frame on which a fire monitor 6 and pressure pipelines 7 are fixed. The frame has a part made with a parallelepiped-based shaping and formed by horizontal and vertical shelves connected to each other. This part of the frame is made with the possibility of covering and holding the water tank 4, and the pressure pipes 7 are fixed simultaneously on the horizontal and vertical shelves of the frame. The frame is made adjacent to the cabin, and the fire monitor 6 is fixed with stops on the shelf in the upper part of the frame from the side where it adjoins the cabin, while the attachment point of the fire monitor 6 exceeds the height of the cabin.

The body with fire-technical equipment additionally contains canisters, made with the possibility of accommodating suction hoses and attached to the body.

The water tank 4 is located above the central axis, which, when the car moves with the filled tank 4, improves the permeability due to the even distribution of weight between the vehicle axles.

Extinguishing fires in remote and difficult areas, including areas of floodplain zones, is hampered by the lack of roads and the presence of flooded areas, which hinders the free use of fire trucks. The flood zones are floodplains of rivers and lakes, deltas covered with thickets of shrubs, reeds, cattails or sedges, which in turn are the fuel and medium for the spread of fire. In the presence of water sources near the fire front, fire equipment, in particular known fire trucks, cannot always be used to fight the fire due to the difficult terrain and the lack of approaches to the water source.

The all-terrain chassis makes it possible to take any position favorable for work relative to the front of the spread of fire for extinguishing. Low pressure tires 2 allow you to overcome weak soils and flooded areas, and also provide buoyancy to the car, which makes it possible to move through the water. The design of the body with a fixation frame provides the ability to move and operate the device in difficult areas.

The functionality of the machine allows you to take a position directly on the water source and take water for extinguishing using a fire monitor 6 installed on the machine, or supply water to another point remote from the water source.

The device is used as follows.

The fire truck allows you to carry out autonomous water / foam extinguishing when working from your own water tanks and foam concentrate 4 and 5, to carry out water / foam extinguishing with the location of the car directly on the water source.

The mixing of the foaming agent with water is carried out using a foam mixer built into the fire pump 3, which ensures the dosing of the foaming agent supplied to the hose lines from the fire pump 3, as well as its uniform supply and mixing with water. PO-6SP can be used as a foaming agent.

The device allows the supply of continuous water (50 m), water atomized (30 m), continuous foam (35 m) jet through the fire monitor 6 with remote control from the cab using the fire pump 3 and pressure pipelines 7. It is also possible to supply water or a foaming agent solution to the pressure pipe, which is located at the rear of the car.

The intake of water for supply or for filling the built-in water tank 4 is carried out using a suction pipe 8 through a suction pipe located at the rear of the vehicle. In accordance with special cases of execution, water is taken with the help of pressure-suction hoses Du100 when the car is at the edge of the water source. In addition, water intake can be carried out through the suction pipe located under the bottom of the car, when the car is located directly on the water source.

If there is no water source in the immediate vicinity of the extinguishing front, two vehicles can work "in conjunction". In this case, the first car is located close to the place of ignition and extinguishing is carried out by supplying a continuous water jet to a distance of up to 50 m, and the second car is located at a distance of up to 600 m, at a water source, and with it water is supplied to the first car.

Claims (7)

1. A fire truck for extinguishing fires in remote and difficult areas, containing an off-road chassis, a cabin with fire extinguishing controls and a body part with fire-technical equipment, characterized in that it contains low-pressure wheels, and a part of the body with fire-technical equipment includes a frame on which a fire monitor and pressure pipelines are fixed, while the frame is designed to envelop and hold a water tank, in addition, a part of the body with fire fighting equipment contains a fire pump, a foam concentrate tank, a suction pipeline, a suction pipe located under the bottom and providing the possibility of suction of water when the car is located directly on the water source. 2. Fire truck according to claim 1, characterized in that the fire pump is driven by a car engine or its own drive engine. 3. Fire truck according to claim. 1 or 2, characterized in that the suction pipe is equipped with butterfly valves, made with the ability to control fluid flows. 4. Fire truck according to claim. 3, characterized in that the body with fire-technical equipment additionally contains canisters, made with the possibility of accommodating suction hoses. 5. Fire truck according to claim 4, characterized in that the frame is made adjacent to the cab, and the fire monitor is fixed in the upper part of the frame from the side where it adjoins the cab, while the attachment point of the fire monitor exceeds the height of the cab. 6. Fire truck according to claim. 1 or 5, characterized in that the nominal pressure in the wheels is 0.05 atm. 7. Fire truck according to claim 6, characterized in that it has a wheel formula "6×6", while the car is made with the same distance between the three bridges.

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