KR102310208B1 - A fire engine having boarding room - Google Patents

Abstract

The present invention relates to a fire engine having a water tank unit-detachable auxiliary boarding compartment, comprising: a water tank unit (20) supported by a vehicle body frame (11) on a rear side of a driver's seat (10); an auxiliary boarding compartment (30) supported by the vehicle body frame (11) between the driver's seat (10) and the water tank unit (20), in which a plurality of firefighters engaged in firefighting activities board; a ventilation unit (40) installed in the auxiliary boarding compartment (30) to ventilate foreign substances and odors which have polluted clothes of the firefighters during a firefighting activity to the outside; and a spoiler (50) installed on a roof of the auxiliary boarding compartment (30) to reduce air resistance while driving. An objective of the present invention is to provide the fire engine having the water tank unit-detachable auxiliary boarding compartment, which can be easily maintained by tilting the driver's seat to a front side.

Description

A fire engine having a separate auxiliary boarding room for a water tank unit {A fire engine having boarding room}

The present invention relates to a fire engine having a water tank unit for receiving and spraying water for fire suppression, and more particularly, an auxiliary boarding room in which a plurality of firefighters board for movement and rest is provided between the driver's seat and the water tank unit. It relates to a fire engine having a separately installed, water tank unit detachable auxiliary boarding compartment.

In general, a fire engine is implemented by forming a truck with an auxiliary boarding room in which a plurality of firefighters are boarded for extinguishing a fire, and a water tank unit for accommodating and spraying water for extinguishing a fire. Such a fire engine is implemented by remodeling a truck manufactured by a vehicle manufacturer. First, the cargo compartment structure is removed from the truck to expose the body frame, and then the steel plate on the rear side of the driver's seat is cut and then a separately manufactured auxiliary passenger compartment is connected (double cab). type), is implemented by mounting a separately manufactured water tank unit on the body frame.

On the other hand, the auxiliary boarding room in which a plurality of firefighters board is realized by welding the rear iron plate to the cut driver's seat, and then installing the seat and lighting.

However, since the auxiliary passenger compartment is additionally connected to the rear of the existing driver's seat, structural durability is often lowered. Accordingly, stress is generated in the welded connection between the driver's seat and the auxiliary passenger compartment due to the weight of the built-in seat or the weight of several firefighters on board, resulting in frequent defects. This is because the thickness of the steel plate constituting the driver's seat body is only 1 to 2T, so it was natural that a defect would occur when a large number of firefighters boarded the auxiliary boarding room connected to the driver's seat iron plate, and thus frequent repair processes occurred. .

In addition, since the auxiliary boarding room is located above the engine on the rear side of the driver's seat, the vibration and noise generated by the engine are directly transmitted to the auxiliary boarding room, and accordingly, the firefighters in the auxiliary boarding room complain a lot of fatigue due to the transmitted vibration and noise. have.

On the other hand, in the case of trucks, the driver's seat can be tilted forward, making maintenance easy.

However, there was a problem that tilting of the driver's seat was impossible as the auxiliary passenger compartment formed one body with the rear of the driver's seat, and thus there were many restrictions in the maintenance process.

The present invention was created to solve the above problems, and by making the auxiliary boarding room in which the firefighter boards form one body with the water tank unit, various defects that may occur in the driver's seat can be prevented, and the driver's seat is located in the front An object of the present invention is to provide a fire engine having a water tank unit detachable auxiliary boarding compartment, which can be tilted to the side to enable easy maintenance.

Another object of the present invention is to provide a fire engine having a separate auxiliary boarding compartment for a water tank unit, which can improve quietness by preventing engine vibration from being transmitted directly to a firefighter on board.

Another object of the present invention is to prevent a severe temperature deviation in the auxiliary passenger compartment from occurring by allowing heat exchange between the external air that is sucked in and the internal air that is exhausted during the ventilation process, and thus a comfortable environment. be able to maintain

In order to achieve the above object, a fire engine having a separate water tank unit type auxiliary boarding compartment according to the present invention includes: a water tank unit 20 supported by a vehicle body frame 11 on the rear side of a driver's seat 10; an auxiliary boarding room (30) supported by the vehicle body frame (11) between the driver's seat (10) and the water tank unit (20), in which a plurality of firefighters performing firefighting activities board; a ventilation unit 40 installed in the auxiliary boarding room 30 to ventilate foreign substances and odors that have polluted the clothes of firefighters during firefighting activities; and a spoiler 50 installed on the roof of the auxiliary boarding room 30 to reduce air resistance while driving.

In the present invention, the auxiliary passenger compartment 30 includes a box-shaped passenger compartment body 31 supported by the vehicle body frame 11, a door 32 for the firefighters to enter and exit, and the passenger compartment body. (31) a light 33 installed on the inner ceiling to irradiate light, a window 34 for observing the outside from the inside of the passenger compartment body 31, and installed opposite the window 34 and a plurality of seats 35 on which firefighters on board are seated.

In the present invention, the ventilation unit 40 is interlocked with the bet exhaust unit 41 for exhausting the contaminated air inside the auxiliary boarding room 30 to the outside, and the bet exhaust unit 41 to the auxiliary boarding. The external air intake part 42 for inhaling fresh external air into the chamber 30 and heat exchange with the exhausted air at the same time, and the internal exhaust part 41 so that external air is introduced into the internal exhaust part 41. It includes an exhaust fan 43 that forms a negative pressure in the.

In the present invention, the bet exhaust unit 41, the external outlet (41a) located on the roof of the auxiliary boarding room (30), the inner entrance (41b) located inside the auxiliary boarding room (30) and , including an exhaust duct (41c) connecting the outer outlet (41a) and the inner inlet (41b); The external air intake part 42 includes an external inlet 42a located on the roof of the auxiliary passenger compartment 30, an internal outlet 42b located inside the auxiliary passenger compartment 30, and the external inlet 42a. ) and an intake duct 42c passing through the exhaust duct 41c as connecting the inner outlet 42b.

In the present invention, a support spring (60) installed between the auxiliary passenger compartment (30) and the vehicle body frame (11) to absorb vibrations transmitted to the auxiliary passenger compartment (30); further includes.

In the present invention, it is installed between the auxiliary boarding compartment 30 and the body frame 11 inside the support spring 60 to absorb the shock applied to the fire engine from being transmitted to the auxiliary boarding room 30. It further includes a damper 70;

In the present invention, the damper 70 is connected to the bottom of the auxiliary boarding compartment 30 inside the support spring 60 and includes a damper cylinder 71 in which viscous oil is accommodated, and the damper cylinder A packing coupling end 72 that is sealedly coupled to one side of the 71 and a sliding coupling to the through hole 72a of the packing coupling end 72 as being connected to the vehicle body frame 11 from the inside of the support spring 60 A load block 73 that becomes and protrudes into and out of the damper cylinder 71, a mounting nut 74 fixed to the end of the load block 73 within the damper cylinder 71, and the damper cylinder 71 The rod fixing member 75 fixed to the rod block 73 on the side of the packing coupling end 72 and the rod block 73 between the mounting nut 74 and the rod fixing member 75 are slidably coupled. Between the first and second oil holes 76a, 76a', 76b, and 76b' through which the oil is subjected to resistance, the damper piston 76 is formed, and the rod fixing member 75 and the damper piston 76 It includes a damper spring 77 installed in the.

According to the present invention, by separately installing an auxiliary boarding room 30 in which a plurality of firefighters who perform firefighting activities ride in the vehicle body frame 11 between the driver's seat 10 and the water tank unit 20, it can be generated from the driver's seat. Various defects can be prevented, and the driver's seat can be tilted forward for easy maintenance.

In addition, by installing the support spring 60 and the damper 70 supporting between the auxiliary passenger compartment 30 and the vehicle body frame 11, it is possible to prevent engine vibration from being directly transmitted to the auxiliary passenger compartment 30, Accordingly, quietness can be improved.

And, by allowing heat exchange between the external air that is sucked in and the internal air that is exhausted during the ventilation process, it is possible to prevent a significant deviation in the temperature inside the auxiliary passenger compartment 30 during the ventilation process, and thus a comfortable boarding environment There is an operational effect that it can be maintained.

1 is a side view of a fire engine having a water tank unit detachable auxiliary boarding compartment according to the present invention;
FIG. 2 is a side view for explaining that the auxiliary passenger compartment is separated from the body frame between the driver's seat and the water tank unit of FIG. 1;
3 is a side view for explaining that the auxiliary boarding compartment of FIG. 1 is supported on the vehicle body frame by a support frame and a damper;
Figure 4 is a view for explaining the internal structure of the auxiliary boarding room of Figure 3;
5 is a view for explaining the structure of the ventilation unit installed in the auxiliary boarding room of FIG. 4;
FIG. 6 is a view for explaining that the external outlet of the bet exhaust unit and the external inlet of the external air intake port are built inside the spoiler of FIG. 1;
7 is a cross-sectional view for explaining the configuration by extracting the support spring and damper of FIG. 5;
8 is a view for explaining the operation when gentle vibration is applied to the damper of FIG. 7;
9 is a view for explaining an operation when a sudden shock is applied to the damper of FIG.

Hereinafter, a fire engine having a water tank unit detachable auxiliary boarding compartment according to the present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, what is described as "upper" or "upper" may include not only those directly above in contact, but also those above in non-contact. Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. The singular expression includes the plural expression unless the context clearly dictates otherwise. In addition, when a part "includes" a certain component, this means that other components may be further included rather than excluding other components unless otherwise stated. In addition, terms such as "...unit" and "module" described in the specification mean a unit that processes at least one function or operation. In addition, in the drawings, the size of the components may be exaggerated or reduced for convenience of description. For example, since the size and thickness of each component shown in the drawings are arbitrarily indicated for convenience of description, the present invention is not necessarily limited to the illustrated bar.

1 is a side view of a fire engine having a water tank unit detachable auxiliary boarding compartment according to the present invention, and FIG. 2 is a vehicle body frame between the driver's seat and the water tank unit of FIG. 1 for explaining the separation of the auxiliary boarding room 3 is a side view for explaining that the auxiliary boarding compartment of FIG. 1 is supported by the vehicle body frame by a support frame and a damper, and FIG. 4 is a view for explaining the internal structure of the auxiliary boarding room of FIG. 3, FIG. 5 is a view for explaining the structure of the ventilation unit installed in the auxiliary boarding room of FIG.

As shown, a fire engine having a separate water tank unit type auxiliary boarding compartment according to the present invention includes: a water tank unit 20 supported by a vehicle body frame 11 on the rear side of a driver's seat 10; an auxiliary boarding room 30 supported by the vehicle body frame 11 between the driver's seat 10 and the water tank unit 20 and in which a plurality of firefighters engaged in firefighting activities board; a ventilation unit 40 installed in the auxiliary boarding room 30 to ventilate foreign substances and odors that contaminate the clothes of the firefighters during the firefighting activity to the outside; a spoiler 50 installed on the roof of the auxiliary boarding room 30 to reduce air resistance while driving; a support spring 60 installed between the auxiliary passenger compartment 30 and the vehicle body frame 11 to absorb vibration transmitted to the auxiliary passenger compartment 30; A damper 70 installed between the auxiliary passenger compartment 30 and the vehicle body frame 11 inside the support spring 60 to absorb the shock applied to the fire engine from being transmitted to the auxiliary passenger compartment 30; Containing; characterized in that

In the water tank unit 20, a water tank in which water is accommodated, various pumps for spraying the water contained in the water tank, various injection power devices composed of tubes and valves, and a ladder for escape are installed as one body. The water tank unit 20 is separately manufactured and mounted on the vehicle body frame 11 on the rear side of the driver's seat 10 .

As shown in FIGS. 3 and 4 , the auxiliary boarding room 30 is a place where a plurality of firefighters engaged in firefighting activities board for movement or rest, and is a box-shaped boarding room body supported by the body frame 11 . 31, the door 32 for the entry and exit of the firefighter, the lighting 33 installed on the ceiling inside the boarding room body 31 to irradiate light, and the outside can be observed from the inside of the boarding room body 31 It includes a window 34 to make it possible, a plurality of seats 35 installed on the opposite side of the window 34 to seat a firefighter on board, and a staircase 36 to enter and exit the boarding room body 31. . As shown in FIG. 2 , the auxiliary boarding compartment 30 is installed to be separated from the driver's seat and the water tank unit 20 .

FIG. 6 is a view for explaining that the external outlet of the bet exhaust unit and the external inlet of the external air intake port are built inside the spoiler of FIG. 1 .

The ventilation unit 40 is interlocked with the inside exhaust unit 41 for exhausting the contaminated air inside the auxiliary boarding room 30 to the outside, and the inside exhaust unit 41 to provide the auxiliary boarding room 30 with fresh air outside. Exhaust fan 43 that forms a negative pressure in the internal exhaust part 41 so that external air is introduced into the external air intake part 42 and the internal exhaust part 41 to make heat exchange with the exhausted air at the same time as the intake air. includes

The bet exhaust unit 41 is, as shown in FIG. 5, an external outlet 41a located on the inside of the spoiler 50 on the roof of the auxiliary boarding room 30, and the auxiliary boarding room 30 It is located inside and an exhaust duct 41c connecting the inner inlet 41b and the outer outlet 41a and the inner inlet 41b.

The outdoor air intake part 42 is, as shown in FIG. 5 , an external entrance 42a located on the inside of the spoiler 50 on the roof of the auxiliary boarding room 30, the auxiliary boarding room 30 located inside It is composed of an internal outlet (42b) and an intake duct (42c) that passes through the exhaust duct (41c) as connecting the external inlet (42a) and the internal outlet (42b).

The exhaust fan 43, as shown in FIG. 5, is installed inside the external outlet 41a to form a negative pressure in the exhaust duct 41c.

Meanwhile, as shown in FIG. 5 , a plurality of air vortex fins 44 for forming air vortices are formed on the inner peripheral surface of the exhaust duct 41c and the outer peripheral surface of the intake duct 42c. The air vortex fin 44 formed on the inner peripheral surface of the exhaust duct 41c and the air vortex fin 44 formed on the outer peripheral surface of the intake duct 42c are arranged in a zigzag manner to form a spiral exhaust passage. These air vortex fins 44 induce a vortex to be formed in the air exhausted through the exhaust duct 41c, so that the air exhausted through the exhaust duct 41c and the air intake through the intake duct 42c are heat-exchanged. make it active

With this structure, when the exhaust fan 43 is operated, a pressure smaller than atmospheric pressure is applied to the external outlet 41a, the exhaust duct 41c, and the internal inlet 41b, so that the air inside the auxiliary passenger compartment 30 is transferred to the internal inlet. As it is sucked into (41b) and exhausted to the outside, as the internal pressure of the auxiliary passenger compartment 30 becomes smaller than atmospheric pressure, the external inlet 42a, the intake duct 42c, and the internal outlet 42b of the external air intake part 42 ) through which fresh air from outside flows in.

In this process, the heat of the air exhausted to the exhaust duct 41c is conducted to the air flowing into the intake duct 42c to minimize the temperature difference, and thus external air flows in when heating the auxiliary passenger compartment 30 . Even if it is possible, it is possible to minimize the temperature drop of the auxiliary boarding compartment 30 . Conversely, even when external air is introduced when cooling the auxiliary passenger compartment 30 , it is possible to minimize the increase in the temperature of the auxiliary passenger compartment 30 . That is, by keeping the temperature deviation of the auxiliary boarding room 30 small during ventilation, it is possible to prevent the firefighters boarding the auxiliary boarding room 30 from being exposed to cold or heat, thereby maintaining a comfortable boarding environment. there will be

In the ventilation unit 40 of the present invention, the intake operation of the outside air intake unit 42 is made in conjunction with the exhaust operation of the inside exhaust unit 41, and the exhaust fan 43 is installed on the roof of the auxiliary boarding room 30. is installed on Therefore, since external air intake is performed naturally without employing a separate intake fan, noise generation during the intake process of external air is suppressed, thereby realizing a quiet boarding environment.

The spoiler 50 is formed to be inclined in the driving direction and open in the opposite direction to the driving direction on the upper side of the auxiliary passenger compartment 30 to reduce air resistance generated during driving of the fire engine. Inside the spoiler 50, the external outlet 41a of the internal exhaust unit and the external inlet 42a of the external air intake port are built-in, and accordingly, even if it rains or snows, rainwater is discharged from the external outlet 41a and the external ear part 42a. will not be introduced into

7 is a cross-sectional view for explaining the configuration by extracting the support spring and damper of FIG. 5, FIG. 8 is a view for explaining the operation when gentle vibration is applied to the damper of FIG. 7, and FIG. It is a diagram for explaining the operation when a sudden impact is applied to the damper.

The support spring 60 is installed between the auxiliary passenger compartment 30 and the body frame 11, and absorbs the vibration transmitted to the vehicle body frame 11 while the fire engine is running, thereby reducing the vibration transmitted to the auxiliary passenger compartment 30. make it

The damper 70 is connected to the bottom of the auxiliary boarding compartment 30 inside the support spring 60 and is sealed to one side of the damper cylinder 71 in which viscous oil is accommodated, and the damper cylinder 71 . A rod protruding into the damper cylinder 71 by slidingly coupled to the through hole 72a of the packing coupling end 72 as connected to the body frame 11 from the inside of the packing coupling end 72 and the support spring 60 The block 73, the mounting nut 74 fixed to the end of the rod block 73 in the damper cylinder 71, and the load block 73 on the side of the packing coupling end 72 in the damper cylinder 71 The first and second oil holes 76a are slidably coupled to the fixed rod fixing member 75 and the rod block 73 between the mounting nut 74 and the rod fixing member 75, and through which the oil is subjected to resistance. and a damper piston 76 in which 76a', 76b, and 76b' are formed, and a damper spring 77 installed between the rod fixing member 75 and the damper piston 76.

The packing coupling end 72 has an annular shape, and as shown in FIG. 7 , the packing coupling end through-hole 72a has a sealing member 72b for reliably maintaining sealing with the outer circumferential surface of the rod block 73 . is installed

The damper piston 76 has first holes 76a and 76a' and second holes 76b and 76b' through which oil having a predetermined viscosity enters and exits. The first holes 76a and 76a' and the second holes 76b and 76b' have small predetermined diameters and are alternately formed, and allow oil to flow only by a certain amount while receiving resistance. That is, when the damper piston 76 moves upward from the inside of the damper cylinder 71, the oil passes through the 76a first hole → 76a' first hole, and when the damper piston 76 moves downward, the oil 76b ' The second hole → 76b passes through the second hole.

A sealing 76c is installed on the outer circumferential surface of the damper piston 76 so as to be in close contact with the inner circumferential surface of the damper cylinder 71 during transport.

The damper spring 77 is installed between the damper piston 76 and the rod fixing member 75, and when the rod block 73 gently moves inside the damper cylinder 71, the damper piston 76 and the rod fixing member 75 ) to keep the distance between them constant. However, when a strong impact (force) is momentarily applied to the load block 73 and rapidly moves inside the damper cylinder 71, the damper spring 77 is momentarily compressed while the damper piston 76 and the rod fixing member 75 are compressed. narrow the gap between them. The modulus of elasticity of the damper spring 77 is greater than the modulus of elasticity of the support spring 60 .

The operations of the support spring 60 and the damper 70 will be described as follows.

When the fire engine passes a gentle barrier while driving, the body frame 11 moves upward. At this time, the auxiliary passenger compartment 30 supported by the support spring 60 and the damper 70 on the body frame 11 is It tries to maintain the initial position by inertia. Then, as shown in FIG. 8 , the vehicle body frame 11 compresses the support spring 60 between the vehicle body frame 11 and the auxiliary passenger compartment 30 while moving toward the auxiliary passenger compartment 30 , and also the vehicle body. As the load block 73 connected to the frame 11 is immersed in the damper cylinder 71 , the damper piston 76 moves inside the damper cylinder 71 . Then, the oil moves toward the damper 77 through the first hole 76a → the first hole 76a'. At this time, the oil has viscosity and passes through the first holes 76a and 76a' by a certain amount. As it moves, the damper piston 76 and the rod block 73 are gradually immersed into the damper cylinder 71 .

When the vehicle completely crosses the barrier, the support spring 60 expands by its own elasticity, and in this process, the road block 73 retracts and protrudes from the damper cylinder 71 . Then, the damper piston 76 coupled to the road block 73 moves in the opposite direction. In this process, the oil on the damper spring 77 side passes through the second hole 76b' → the second hole 76b. are transported At this time, since the oil moves by a certain amount through the second holes 76b' and 76b while having viscosity, the damper piston 76 and the rod block 73 gradually protrude from the damper cylinder 71.

Thereafter, the support spring 60 is about to be compressed again by its own elasticity, and the force generated during compression causes the damper piston 76 and the rod block 73 to be immersed into the damper cylinder 71 again, this process The elastic force transmitted from the to the damper piston 76 is gradually absorbed by the oil moving through the first and second holes, and therefore the support spring 60 immediately returns to its initial state, and the residual vibration to the auxiliary passenger compartment 30 is not authorized

On the other hand, when a fire engine passes a cliff or a puddle while driving at high speed, a large shock is applied to the body frame 11 for a very short time. applied in the direction

However, since the oil itself has viscosity, a predetermined time is required while passing through the first and second holes 76a, 76a', 76b, and 76b'. Movement is inhibited for a period of time. However, the impact causes the load block 73 to be immersed into the damper cylinder 71 for a short time, and the damper piston 76 is temporarily stopped in the oil, so as shown in FIG. 9, the load block ( 73 passes through the damper piston 76 while compressing the damper spring 77 and is immersed into the damper cylinder 71 . That is, the damper piston 76 does not move, and only the road block 73 moves when the damper spring 77 is compressed. This is possible because the modulus of elasticity of the damper spring 77 is greater than that of the support spring 60 .

That is, when gentle vibration is applied to the running fire engine by the support spring 60 and the damper 70, as shown in FIG. 8, the damper spring 77 is not compressed and the damper piston 76 and the road block are not compressed. When the vibration is absorbed while moving 73, and a momentary shock is applied to the fire engine, as shown in FIG. 9, the damper piston 76 does not move and the damper spring 77 is compressed to absorb the shock. . Therefore, even if the fire engine runs in any environment such as a gentle cliff or puddle, the vibration or shock transmitted to the auxiliary boarding room 30 can be reduced, so that the firefighter riding in the auxiliary boarding room 30 always boards in a quiet state. it can be done

As described above, according to the present invention, by separately installing the auxiliary boarding room 30 in which a plurality of firefighters carrying out firefighting activities board the vehicle body frame 11 between the driver's seat 10 and the water tank unit 20, the driver's seat Various defects that may occur can be prevented, and the driver's seat can be tilted forward to facilitate maintenance.

In addition, by installing the support spring 60 and the damper 70 supporting between the auxiliary passenger compartment 30 and the vehicle body frame 11, it is possible to prevent engine vibration from being directly transmitted to the auxiliary passenger compartment 30, Accordingly, quietness can be improved.

And, by allowing heat exchange between the external air that is sucked in and the internal air that is exhausted during the ventilation process, it is possible to prevent a significant deviation in the temperature inside the auxiliary passenger compartment 30 during the ventilation process, and thus a comfortable boarding environment be able to maintain

Although the present invention has been described with reference to one embodiment shown in the drawings, which is only exemplary, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

10 ... Driver's seat 11 ... Body frame
20 ... water tank unit 30 ... auxiliary passenger compartment
30a ... lower base 30b ... upper base
31 ... cabin body 32 ... door
33 ... lighting 34 ... windows
35 ... sheet 36 ... stairs
40 ... ventilation unit 41 ... exhaust exhaust unit
41a ... Exterior outlet 41b ... Interior entrance
41c ... Exhaust duct 42 ... Outside air intake
42a ... Exterior entrance 42b ... Internal exit
42c ... intake duct 43 ... exhaust fan
44 ... Air Vortex Fin 50 ... Spoiler
60 ... support spring 70 ... damper
71 ... damper cylinder 72 ... packing end
72a ... through hole 72b ... sealing member
73 ... road block 74 ... mounting nut
75 ... rod fixing member 76 ... damper piston
76a, 76a' ... first hole 76b, 76b; ... the second dream
77 ... damper spring

Claims (7)

a water tank unit 20 supported by the vehicle body frame 11 on the rear side of the driver's seat 10;
A plurality of firefighters who are supported by the vehicle body frame 11 between the driver's seat 10 and the water tank unit 20 and installed separately from the driver's seat 10 and the water tank unit 20, who perform firefighting activities Auxiliary boarding room 30 for boarding;
a ventilation unit 40 installed in the auxiliary boarding room 30 to ventilate foreign substances and odors that have polluted the clothes of firefighters during firefighting activities; and
A spoiler (50) installed on the roof of the auxiliary boarding room (30) to reduce air resistance while driving;
The ventilation unit 40 is interlocked with the bet exhaust unit 41 for exhausting the contaminated air inside the auxiliary boarding room 30 to the outside, and the inside exhaust unit 41 to the auxiliary boarding room 30 . An external air intake part 42 that inhales external air into the furnace and exchanges heat with the exhausted air at the same time, and a negative pressure is formed in the internal exhaust part 41 so that external air is introduced into the internal exhaust part 41 Including an exhaust fan (43),
The bet exhaust unit 41 includes an external outlet 41a located on the inside of the spoiler 50 on the roof of the auxiliary boarding room 30 and an internal entrance located inside the auxiliary boarding room 30 ( 41b) and an exhaust duct 41c connecting the outer outlet 41a and the inner inlet 41b,
The external air intake part 42 includes an external inlet 42a located inside the spoiler 50 on the roof of the auxiliary passenger compartment 30 and an internal outlet located inside the auxiliary passenger compartment 30 ( 42b) and an intake duct 42c that connects the external inlet 42a and the internal outlet 42b and passes through the exhaust duct 41c,
The exhaust fan 43 is installed inside the external outlet 41a to form a negative pressure in the exhaust duct 41c,
A plurality of air vortex fins 44 for forming air vortices are formed on the inner peripheral surface of the exhaust duct 41c and the outer peripheral surface of the intake duct 42c, respectively,
The air vortex fin 44 disposed on the inner circumferential surface of the exhaust duct 41c and the air vortex fin 44 disposed on the outer circumferential surface of the intake duct 42c are arranged in a zigzag manner to form a spiral exhaust flow path. Fire engine having a water tank unit separation type auxiliary boarding room, characterized in that. According to claim 1, wherein the auxiliary boarding compartment (30),
a box-shaped passenger compartment body 31 supported by the vehicle body frame 11;
a door 32 for the firefighter to enter and exit;
a lighting 33 installed on the inner ceiling of the passenger compartment body 31 to irradiate light;
a window 34 for observing the outside from the inside of the passenger compartment body 31;
A fire engine having a water tank unit separation type auxiliary boarding compartment, characterized in that it is installed opposite the window (34) and includes a plurality of seats (35) on which firefighters on board are seated. delete delete 3. The method of claim 2,
a support spring (60) installed between the auxiliary passenger compartment (30) and the vehicle body frame (11) to absorb vibrations transmitted to the auxiliary passenger compartment (30); and
a damper 70 installed between the auxiliary passenger compartment 30 and the vehicle body frame 11 inside the support spring 60 to absorb the shock applied to the fire engine from being transmitted to the auxiliary passenger compartment 30; further comprising,
The damper 70 is connected to the bottom of the auxiliary boarding compartment 30 inside the support spring 60 and includes a damper cylinder 71 in which viscous oil is accommodated, and one side of the damper cylinder 71 . The damper cylinder ( 71) a rod block 73 protruding inside, a mounting nut 74 fixed to the end of the rod block 73 in the damper cylinder 71, and the packing coupling end in the damper cylinder 71 ( 72) is slidably coupled to the rod fixing member 75 fixed to the side rod block 73, and the rod block 73 between the mounting nut 74 and the rod fixing member 75, and the oil reduces the resistance. A damper piston 76 having first and second oil holes 76a, 76a', 76b, and 76b' for receiving and entering, and a damper spring installed between the rod fixing member 75 and the damper piston 76 (77) Fire engine having a water tank unit integrated auxiliary boarding compartment, characterized in that it includes. delete delete

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