JP3832723B2 - Fire hydrant equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fire hydrant device that is installed in a tunnel or the like and used to extinguish a vehicle fire.
[0002]
[Prior art]
Conventionally, as a fire hydrant device installed in a tunnel such as an expressway or an automobile exclusive road, for example, a device as shown in FIG. 10 is known (Japanese Patent Laid-Open No. 2001-95940, etc.).
[0003]
In this fire hydrant device 100, a hose 103 with a nozzle 102 is housed in a casing, and in the event of a fire, the door 101 is opened, the nozzle 102 is held, and the hose 103 is pulled out to extinguish the fire. In order to prevent the hose 103 from coming out more than necessary when the hose is pulled out, a hose guide 104 is provided inside the door 101, and the hose 103 is pulled out through the hose guide 104.
[0004]
[Problems to be solved by the invention]
By the way, in recent years, there is an increasing demand for miniaturization of fire hydrant devices installed in tunnels because of the importance of design. Also, in the tunnel, in order to pursue driving comfort, it is expected that there will be cases where the installation position of the fire hydrant device is lowered to near the driver's eyes.
[0005]
However, when the fire hydrant device is installed at a height near the road surface in this way, particularly in a fire hydrant device having a structure in which a hose as shown in FIG. Since the height of the person holding the hose is higher than the storage height, there is a problem that the hose is strongly rubbed against the hose guide and the pulling force is increased.
[0006]
An object of this invention is to provide the fire hydrant apparatus which enabled the hose pull-out appropriately even if the installation position became low.
[0007]
[Means for solving the problems]
In order to achieve this object, the present invention is configured as follows. The present invention relates to a fire hydrant device that accommodates a hose with a nozzle in a casing and houses the hose with a nozzle, opens the door of the casing and pulls out the hose with the nozzle and extinguishes the fire when the fire is extinguished. A hose guide, and a door opening / closing mechanism having a two-stage open position, a first position obliquely upward before the door is opened 90 degrees with the lower side as the rotation axis, and a second position opened 90 degrees, When the door is pulled out, the door stops at the first position, and the hose guide is set at a predetermined height from the floor surface.
By making the hose guide extendable in this way, the difference between the height of the person holding the hose and the height of the hose guide is narrowed, and the frictional resistance is reduced, thereby preventing an increase in the pulling force. Thus, the opening position is determined so that the door that normally opens 90 degrees stops at the halfway position, thereby minimizing the difference between the height when the person holds the hose and the height of the hose guide and reducing friction Thus, the increase of the pulling force is prevented, the difference between the height of the person holding the hose and the height of the hose guide is minimized, and the frictional resistance is reduced to prevent the pulling force from increasing.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a front view of a fire hydrant apparatus according to the present invention. In FIG. 1, the fire hydrant device 1 of the present invention has a casing 2 placed on a gantry 3, and the size of the casing 2 is approximately the height including the gantry 3, for example, in order to reduce the size in the height direction. The width is 70 cm and the width is, for example, about 2.26 m, and it has a horizontally long shape as compared to a conventional fire hydrant device.
[0012]
On the front surface of the housing 2 of the fire hydrant apparatus 1, there are provided a fire hydrant door 4 that opens downward with the lower part as an axis, and a fire extinguisher door 5 that opens similarly with the lower part as an axis. Moreover, with respect to the fire extinguisher door 5, the fire extinguisher upper door 6 is provided on the upper surface of the housing 2 so as to open in an interlocking manner.
[0013]
Inside the fire hydrant door 4, as will be clarified later, a hose with a nozzle attached to the tip is housed in an internally wound state in the housing, the fire hydrant door 4 is opened, the nozzle is pulled out, By operating the fire hydrant valve opening / closing lever provided, the fire pump equipment can be activated to discharge water.
[0014]
The fire hydrant door 4 is provided with an opening / closing handle 4a. By pulling the opening / closing handle 4a, the fire hydrant door 4 can be opened forward with the lower side as a rotation axis. In the embodiment of the present invention, the open position of the fire hydrant door 4 is a first position that is a predetermined position before 90 °, and a second position that is opened 90 °, as will be clarified later. There are two open positions.
[0015]
The fire extinguisher door 5 is provided with an opening / closing handle 5a. By pulling the opening / closing handle 5a, the fire extinguisher door 5 can be opened obliquely upward with the lower side as a rotation axis. With the opening of the fire extinguisher door 5, the fire extinguisher upper door 6 is interlocked and opened obliquely upward, and the fire extinguisher inside the fire extinguisher upper door 6 and the fire extinguisher door 5 can be taken out. .
[0016]
Between the fire extinguisher door 5 and the fire hydrant door 4, a manual transmitter 7a, a red indicator lamp 7b, and a response lamp 7c are provided. In the event of a fire accident in the tunnel, an emergency call can be made to the monitoring room or the like by operating the button of the manual transmitter 7a, and the response lamp 7c flashes when the emergency call is confirmed. The red indicator lamp 7 b indicates the installation position of the fire hydrant device 1. The fire light 7b may also be switched from a normal lighting state to a blinking state in response to an emergency call.
[0017]
FIG. 2 is an example of an installation state in the tunnel of the fire hydrant device 1 of the present invention shown in FIG. In this installation example, the road surface 9 b is constructed with a step of about 20 to 30 cm with respect to the passage 9 a along the tunnel side wall 8. The fire hydrant device 1 of the present invention is installed on the passage 9a.
[0018]
In the event of a vehicle fire, go up the passage 9a, open the door of the fire hydrant device 1 and pull out the hose with a nozzle. Since the fire hydrant device 1 is about 70 cm, the hose pull-out position when the door is opened is If the door opens 90 °, it will be close to the passage 9a. In the present invention, as will be apparent from the following explanation, the opening position of the door is as high as the height of the hose that the person has. It is configured to be close to the position.
[0019]
FIG. 3 is an explanatory view showing the internal structure with the fire hydrant door of FIG. 1 removed. Inside the fire hydrant door, a hose accommodating portion formed by a support pipe 10 and a hose accommodating frame 11 is provided, and a shape-retaining hose 12 is accommodated in the hose accommodating portion in an internally wound state.
[0020]
FIG. 4 shows the hose housing part shown in FIG. This hose accommodating part fixes the upper part of the U-shaped support pipe 10 in the housing | casing 2, The hose accommodating frame 11 is attached to the box shape open | released from the side part of the support pipe 10 to the upper part, This hose A shape-retaining hose 12 is housed in the housing frame 11 in an internally wound state as shown in FIG.
[0021]
Referring to FIG. 3 again, a water supply valve 13 having a water tap 13a is provided on the right side of the hose accommodating portion, and water can be supplied by connecting a hose to the water tap 13a and turning the handle of the water supply valve 13. A water supply connection port is provided behind the water supply valve 13 as will be clarified later, and a water supply pipe raised from the lower part is connected to supply pressurized fire-fighting water from the fire pumping equipment. Can do.
[0022]
A fire hydrant valve 14 is provided following the water supply valve 13. The fire hydrant valve 14 is wire-connected to a fire hydrant opening lever inside the door, which will be clarified later, and the fire hydrant valve 14 can be opened in accordance with the lever operation to supply pressurized fire-fighting water to the hose 12 side. Following the fire hydrant valve 14, an automatic pressure regulating valve 15 is provided. A safety valve 16 is provided on the outlet side of the automatic pressure regulating valve 15, and when the pressure exceeds a predetermined pressure, the safety valve 16 operates to drain water.
[0023]
The pipe line following the safety valve 16 is connected to the end portion of the hose 12 housed in the hose housing frame 11 on the left side in an internally wound state. Further, on the right side of the hose storage frame 11, a buffer damper 18 is provided for absorbing shock when the fire hydrant door, which will be described later, is opened. A pump start switch 17 is provided in the housing on the right side of the buffer damper 18 so that the pump can be started manually. Two fire extinguishers 19 are housed inside the fire extinguisher door disposed on the left side of the housing 2.
[0024]
FIG. 5 is a plan view of the internal structure of the fire hydrant device 1 of FIG. 1 with the fire hydrant door 4 open. A buffer damper 18 is provided between the hydrant door 4 and the housing 2 so that the hydrant door 4 can be opened smoothly. The fire hydrant door 4 is supported by a hinge 22 with a latch having a rotation shaft centered on the lower part.
[0025]
When the fire hydrant door is first opened by a handle operation, the latched hinge 22 is obliquely upwardly facing the front of the fire hydrant door 4a opened 90 ° as shown in the side view of FIG. A latch function is provided that opens to the first position. Further, when the latch of the latched hinge 22 is released at the first opening position 90 ° before FIG. 6, it can be opened to the second position of the fire hydrant door 4a opened 90 °.
[0026]
A fire hydrant valve opening / closing lever 23 is provided on the right side inside the fire hydrant door 4. When the hydrant valve opening / closing lever 23 is operated to the front, the hydrant valve 14 of FIG. 3 connected to the wire is switched to the open position. At this time, a pump activation interlocking switch (not shown) provided at the lower part of the lever is turned on, and the fire extinguishing pump equipment can be activated.
[0027]
In order to stop water discharge from the nozzle 21, the fire hydrant valve opening / closing lever 23 may be returned to the initial position shown in the drawing, and the fire hydrant valve 14 connected by wire is switched to the closed position. At the same time, when the lever is returned to the initial position, the pump activation interlock switch provided at the bottom of the lever is turned off. The fire pump is stopped by operating the switch on the pump control panel provided in the fire pump system.
[0028]
A shape-retaining hose 12 housed in the hose housing frame 11 of the housing 2 in an inwardly wound state is drawn out to the door side through a support pipe 10 formed in a U-shape, and further a fire hydrant door 4 is connected to the nozzle through an inverted U-shaped hose guide 20 provided inside the nozzle 4.
[0029]
As shown in the side view of FIG. 6, the hose guide 20 provided on the inside of the fire hydrant door 4 is opened obliquely upward in front of the second position of the fire hydrant door 4a opened 90 ° when the fire hydrant door 4 is opened by a handle. The height H from the floor surface of the hose guide 20 provided inside the fire hydrant door 4 is opened to the first position, and the height at which the person holds the hose when the hose with the nozzle is pulled out from the fire hydrant device 1. The difference is minimized.
[0030]
Furthermore, the hose guide 20 of the present invention includes an expansion / contraction mechanism shown in FIG. In FIG. 7, the hose guide 20 is attached to the fire hydrant door 4 via the telescopic attachment portions 25 at both ends of an inverted U-shaped guide arm 24 made of a pipe member. The telescopic mounting part 25 is fixed to the fire hydrant door 4 side, a fixed bracket 25a fixed to the fixed bracket 25a, and a retractable telescopic pole 25b that can be moved back and forth in the axial direction. A telescopic pole 25c that is stopped is provided.
[0031]
For this reason, when the hose drawn through the hose guide 20 is pulled upward, the expansion poles 25b and 25c extend upward with respect to the fixing bracket 25a of the expansion / contraction mounting portion 25 as shown in FIG. The height of the hose guide 20 is adjusted to the height of the person of the hose, thereby reducing the friction of the hose passing through the hose guide 20.
[0032]
FIG. 9 shows the movement of the hose 12 withdrawn by the interaction between the telescopic hose guide 20 provided on the fire hydrant door 4 and the support pipe 10 to which the hose storage frame 11 in the housing located inside the fire hose door 4 is attached. Represents.
[0033]
When the hose inserted in the hose storage frame 11 in an inwardly wound state is taken out from between the support pipes 10 and further pulled out obliquely upward as indicated by an arrow through the hose guide 20 inside the fire hydrant door 4, for example, The hose 12 is pulled out while rotating in a closed loop space viewed from the front of the hose guide 20 and the support pipe 10.
[0034]
Further, when the hose is drawn upward, the hose guide 20 shown in FIGS. 7 and 8 can be extended and moved in the hose moving direction like the hose guide 20a by the expansion / contraction function of the hose guide 20a. Resistance can be reduced, and the hose can be pulled out easily.
[0035]
The fire extinguishing activity for a fire accident in the tunnel using the fire hydrant device of the present invention will be described as follows.
[0036]
The fire hydrant apparatus 1 of the present invention is installed in the tunnel every 50 m, for example. When a fire accident occurs in the tunnel, the fire hydrant apparatus 1 installed nearby is shown in FIG. As shown, hold the open / close handle 4a provided on the fire hydrant door 4 and open the door toward you.
[0037]
At this time, if necessary, the push button of the manual transmitter 7a is pushed to notify the disaster prevention center of the occurrence of a fire accident. When confirmation is made on the disaster prevention center side, the response lamp 7c is blinked, and the notification can be confirmed.
[0038]
When the fire hydrant door 4 is opened by holding the opening / closing handle 4a, the fire hydrant door stops at the first position in front of the fire hydrant door 4a opened 90 ° as shown in FIG. Match the height with the hose to be pulled out. In this state, the nozzle 21 mounted inside the fire hydrant door 4 is taken out as shown in FIG. 2, and the hose 12 is pulled out toward the fire site.
[0039]
Even if the hose 12 is pulled out vigorously at this time, the hose is pulled out through the hose guide 20 provided inside the fire hydrant door 4, so that it is possible to prevent the hose from being pulled out from the inner winding state more than necessary.
[0040]
When the hose is pulled out, the hose guide 20 extends upward according to the hose pulling direction as shown in FIG. 8, thereby adjusting the hose pulling position to the height of the hose held by the person, The friction between the hose guide 20 and the hose 12 can be lowered, and the hose can be pulled out with a light force.
[0041]
Further, when pulling out the hose with the nozzle 21, the fire hydrant valve opening / closing lever 23 provided inside the fire hydrant door 4 is operated to the front as shown in FIGS. 5 and 6. As a result, a fire-extinguishing pump interlocking switch (not shown) is turned on, and supply of pressurized fire-extinguishing water is started by starting the pump in the fire-extinguishing pump facility.
[0042]
At the same time, the fire hydrant valve 14 is opened by the wire, and the operator performs fire extinguishing by pulling out the hose toward the fire site while discharging water from the nozzle 21 held in the hand.
[0043]
When the fire is extinguished and the fire is extinguished, the fire hydrant valve opening / closing lever 23 provided in the door is returned to its original position, and the fire pump is stopped by pushing the stop switch of the pump control panel in the pump chamber, so that the water discharge can be stopped.
[0044]
After the extinguishment of the hose 12, the supervisor rewinds the hose 12 in the hose storage frame 11 in the housing 2 in an inwardly wound state. At this time, with respect to the fire hydrant door 4 opened at the first position in FIG. 6, by opening the latch 22 with the latch, the fire hydrant door 4 is opened at the second position 90 ° opened as shown in the fire hydrant door 4a. Can do.
[0045]
Thus, by opening the fire hydrant door 4 to a position opened 90 °, the opening by the support pipe 10 can be easily passed into the hose storage frame 11 in the housing 2 as compared with the case where the door is in the first position in the middle. The rewinding operation for storing the hose 12 in the inner winding state can be performed.
[0046]
On the other hand, when the fire extinguisher door 5 is opened by pulling the opening / closing handle 5a provided on the left side of the housing 2 in FIG. 1 as shown in FIG. 6, the fire extinguisher upper door 6 is linked to a predetermined upward angle θ. It opens with the force of a spring and can easily be taken out even if the internal fire extinguisher is in a low position.
[0047]
Here, as shown in FIG. 6, the open / close mechanism that opens the fire hydrant door 4 in two stages, that is, a first position 90 degrees before and a second position 90 degrees opened (hose storage position) is the latch shown in the above embodiment. In addition to the hinge, for example, the link arm of the buffer damper 18 is locked to the first position by locking it inside the door, and when opening 90 degrees, the link may be removed to open the second position. An appropriate two-stage door opening structure and mechanism can be applied.
[0048]
The above embodiment is an example of a fire hydrant device that is downsized in the height direction and has a horizontally long structure. However, the present invention is not limited to this, and the hose is housed in an internally wound state. A fire hydrant device having a structure in which a hose with a nozzle is pulled out through a hose guide inside the door, where the hose pull-out position is at a relatively low position, can be applied as it is.
[0049]
【The invention's effect】
As described above, according to the present invention, the hose guide is provided with a mechanism that can be vertically expanded and contracted according to the movement of the hose, so that the hose can be pulled out even if the hose pullout position is relatively low. It becomes easy to do and can perform fire extinguishing activity surely. In addition, the hose guide can be easily retracted by retracting the hose guide by retracting the hose guide by retracting the hose guide so as to return the hose to the inner winding state.
[0050]
Moreover, in the fire hydrant device of the present invention, the height of the hose guide provided inside the door approaches the height of the hose held by the person by stopping the opened fire hydrant door at a position just before opening 90 °. The difference between the height of the hose that passes through the guide and the height of the hose that the person has is reduced, thereby reducing the friction of the hose that passes through the hose guide and reducing the pull-out force and performing a reliable fire fighting operation.
[0051]
Furthermore, when the hose is stored, the fire hydrant door can be set to the fully open position with the opening opened by 90 °, which makes it easy to store the hose.
[Brief description of the drawings]
FIG. 1 is a front view of a fire hydrant device according to the present invention. FIG. 2 is an explanatory view of an installation example of a fire hydrant device according to the present invention in a tunnel. Explanatory diagram [Fig. 4] Explanatory diagram showing the hose housing part taken out from the housing [Fig. 5] Plan view of the internal structure of the fire hydrant device of Fig. 1 with the door open [Fig. 6] Fig. 5 Side view of Fig. 5 7] Illustration of the hose guide provided inside the door [Fig. 8] Illustration of the hose guide extended [Fig. 9] Illustration of the action of the hose guide according to the present invention when the hose is pulled out [Fig. 10] Conventional fire hydrant Device description [Explanation of symbols]
1: Fire hydrant device 2: Case 3: Stand 4: Fire hydrant door 4a, 5a: Opening / closing handle 5: Fire extinguisher door 6: Fire extinguisher upper door 7a: Manual transmitter 7b: Red indicator lamp 7c: Response lamp 8: Tunnel side wall 9a: passage 9b: road surface 10: support pipe 11: hose storage frame 12: hose 13: water supply valve 14: fire hydrant valve 15: automatic pressure control valve 16: safety valve 17: pump start switch 18: buffer damper 19: fire extinguisher 20: hose Guide 21: Nozzle 22: Hinge with latch 23: Fire hydrant valve opening / closing lever 24: Guide arm 25: Extendable mounting portion 25a: Fixing bracket 25b, 25c: Extendable pole

Claims (1)

In a fire hydrant device that houses a hose with a nozzle inside the housing, and opens the door of the housing at the time of fire extinguishing and pulls out the hose with nozzle to extinguish the fire,
A hose guide provided inside the door and inserted through the hose;
A door opening and closing mechanism having a two-stage opening position, a first position obliquely upward before opening the door 90 degrees around the rotation axis on the lower side, and a second position opened 90 degrees;
The fire hydrant device, wherein when pulling out the hose, the door stops at the first position, and the hose guide is positioned at a predetermined height from the floor surface.

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