JPH0733808Y2 - Ceiling-mounted fire hydrant device - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is a ceiling-mounted type installed mainly in the center of the ceiling of buildings such as supermarkets and department stores with a large floor area and used for fire fighting activities. It relates to a fire hydrant device.

(Prior Art) Generally, a hose reel type fire hydrant is widely used as a fire hydrant device installed in a supermarket or the like (for example, Japanese Utility Model Publication No. 60-10595).

That is, in the fire hydrant device, a hose reel wound around a hose is rotatably excreted in a fire hydrant box installed on the wall surface of a building, and the base end of the hose is connected to a high pressure water source via a fire hydrant valve or the like. At the same time, a nozzle is connected to the tip of the hose, and when a fire occurs, when the nozzle and the tip of the hose are held and pulled, the hose is quickly pulled out by the rotation of the hose reel.

(Problems to be solved by the invention) By the way, in the conventional fire hydrant device, the area where the hose can be pulled out was limited to a range of 180 degrees at the maximum because it was installed on the wall surface of the building. Therefore, the conventional fire hydrant device
The area where fire-fighting activities can be performed is significantly limited, and in a building with a large floor area, it is not possible to cover the entire room with one fire hydrant device, and it was necessary to install fire hydrant devices at several points on the wall surface. . As a result, it takes a lot of time to install the fire hydrant device, and there is a problem that the equipment cost rises significantly.

Also, when there are many display shelves in the room, such as in a supermarket, if the fire hydrant is installed on the wall near the floor, when the operator pulls out the hose and passes between the display shelves, etc. The hoses could get caught in the shelves quite easily. As a result, the problem that the hose cannot be pulled out satisfactorily and smoothly and it takes time to extinguish the fire has occurred.

Further, since the hose reel type fire hydrant device uses the shape-retaining hose, it is unavoidable to use a large hose reel having a large width. As a result, the length and width of the fire hydrant box inevitably become large, and there is a problem that the device itself becomes large. However, when the shape-retaining hose is used, a rotary joint or the like has to be arranged on the hose reel, which causes a problem that the structure of the water channel becomes complicated.

The present invention was created in order to solve the above problems, and the purpose thereof is to be able to pull out the hose in any direction of 360 degrees, and also to pull out the hose satisfactorily and smoothly, which requires no equipment cost. An object is to provide a ceiling-equipped fire hydrant device that can be reduced in size and downsized.

(Means for Solving the Problems) In order to achieve the above object, a ceiling-mounted fire hydrant device of the present invention is installed in a substantially central position of the ceiling, and a large door and a small door that can be independently opened and closed on the lower surface. A fire hydrant box with a plate-like support arm that is swingably mounted in the fire hydrant box between a horizontal position and a vertical position, and that is in the vertical position when the large door is opened and projects to the outside of the fire hydrant box. A rotatably attached to the tip of the support arm, taken out of the fire hydrant box when the large door is opened, and a hose reel formed with a width slightly larger than the diameter of the hose, and a hose reel inside the fire hydrant box. A fire hydrant valve that is installed and connected to a high-pressure water source, and is folded in two at approximately the middle, and in this state is wound around the hose reel in sequence and can be pulled out from the opening formed by opening the small door. The end is a fire hydrant valve Provided in the fire hydrant box, a connected cloth hose, a nozzle that is connected to the tip of the hose and placed on a small door in the closed position, and a nozzle that descends with the hose from the opening when the small door is opened. , A stopper for restricting the amount of lowering of the nozzle.

(Function) When a small door is opened automatically or manually in the event of a fire, an opening for drawing out a hose is formed, and
The nozzle descends from the opening together with the hose by a predetermined distance. Therefore, the hose can be pulled out even though the fire hydrant device is installed on the ceiling. Further, since the amount of lowering of the nozzle is regulated by the stopper, it is possible to prevent the nozzle from colliding with the operator when the nozzle is lowered.

Then, when the operator holds the tip of the nozzle and the hose and pulls them in the direction of fire, the hose reel rotates in the direction of unwinding the hose, and the hose is sequentially withdrawn from the opening formed by opening the small door. At this time, since the hose is folded in two, the hose can be pulled out completely from the hose reel by pulling the hose by half the length, and the hose can be pulled out in a short time.

Since this fire hydrant device is installed at approximately the center of the ceiling of the building, the hose can be pulled out in any direction of 360 degrees, which greatly expands the fire fighting area. as a result,
Even in a building with a large floor area, the number of fire hydrant devices installed is small, and it is possible to cover the entire room with only one fire hydrant device.

In addition, since the hose is pulled out from a high place, even if the display shelf is placed indoors like in a supermarket, it does not mean that it is easily caught on the display shelf while the hose is pulled out. Can be pulled out satisfactorily and smoothly.

Further, since the cloth hose is wound around the hose reel, a small and thin hose reel can be used, and as a result, the fire hydrant apparatus itself can be downsized.

After use, the fire hydrant valve is closed, the large door is opened, the hose reel is taken out of the fire hydrant box, the dried hose is folded in two, and the folded hose is wound around the hose reel. At this time, since the hose reel is located outside the fire hydrant box, the hose can be easily wound.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

1 to 4 show a fire hydrant device according to an embodiment of the present invention, in which 1 is a fire hydrant box, 2 is a support arm, 3 is a hose reel, 4 is a fire hydrant valve, 5 is a cloth hose, and 6 is a hose. A guide body, 7 is a nozzle, and 8 is a stopper.

The fire hydrant box 1 is a box-shaped main body 9 having an open lower surface composed of an upper wall and a side wall, and is rotatably attached to the lower surface of the main body 9 to open and close a lower surface opening. It is composed of a door 10 and a small door 11, etc., and the missing doors 10, 1 are located at the approximate center of the ceiling 12 of a building such as a supermarket.
1 is buried so that it is almost at the same level as the ceiling surface (see Fig. 3).

Also, the small door 11 is closed to the large door 10 (solid line position in FIG. 3).
An electromagnetic solenoid 13 for holding the large door 10 and a lock mechanism 14 for holding the large door 10 at the closed position (the solid line position in FIG. 3) are respectively provided.

Specifically, the electromagnetic solenoid 13 is composed of a main body 15 and a rod 16 that is constantly projecting from the main body 15 and is retained by the small door 11 and can be moved back and forth.
When the push button of the fire alarm or a dedicated push button is pressed, the rod 16 retracts and is removed from the small door 11. Therefore, when the rod 16 is disengaged from the small door 11, the locked state of the small door 11 is released, the small door 11 rotates downward by its own weight, and reaches the open position (the solid line position in FIG. 7).

As shown in FIG. 5, the lock mechanism 14 is supported by a support piece 17 fixed to the large door 10 and slidably inserted into and supported by the support piece 17, and its tip can be inserted into a locking hole 18 in the side wall of the main body 9. Operation pin 19,
It is composed of a compression spring 20 that biases the operation pin 19 toward the side wall side and inserts and locks the tip end into the locking hole 18, and when the operation pin 19 is manually operated from the solid line position to the chain line position, the operation pin 19 is engaged. It is designed to come out of the blind hole 18. Therefore, when the operation pin 19 is pulled out from the locking hole 18, the large door 10 is unlocked, pivots downward by its own weight, and reaches the open position (solid line position in FIG. 8).

Although not shown in the small door 11 or the large door 10, there is a display device such as a display plate such as an acrylic plate and an illumination lamp, and the word "fire hydrant" is displayed on the display plate. It is designed to stand out by the lighting.

The support arm 2 is swingably attached to the side wall of the main body 9 between a horizontal position (solid line position in FIG. 3) and a vertical position (solid line position in FIG. 8).
It is mounted on a support table 21 provided on the back surface of the and is held at this position.

The hose reel 3 is rotatably supported by a reel shaft 22 vertically provided at the tip of the support arm 2. When the base door 10 is closed and the support arm 2 is in a horizontal position, the hose reel 3 is horizontally placed in the fire hydrant hole 1. It is rotatably housed in a posture, and when the large door 10 is opened and the support arm 2 is in the vertical position, it can be taken out of the fire hydrant box 1 in a vertical posture.

The hose reel 3 is composed of a pair of side plates 23, and a tubular body 24 that is fitted to the reel shaft 22 so as to be rotatable and immovable in the axial direction and connects the side plates 23 to each other. As shown in FIG. 3, the hose 5 has a width slightly larger than the diameter of the hose 5.

The fire hydrant valve 4 is attached to the side wall of the main body 9 of the fire hydrant box 1, and its suction port side is connected to a high-pressure water source via a pipe or the like. In this embodiment, a solenoid valve is used as the fire hydrant valve 4, and this solenoid valve pushes a dedicated push button, a push button of a fire alarm, or the like, or a pressurizing water supply device including a pump and a motor. It is designed to open when the startup switch is turned on.

The cloth hose 5 is folded in half at a substantially middle portion, and in this state, the hose 5 is sequentially wound around the tubular body 24 of the hose reel 3 and folded, and the tip end side is opened from the opening formed by opening the small door 11. It can be pulled out and its proximal end is connected to the fire hydrant valve 4.

The hose guide body 6 is arranged near the peripheral portion of the hose reel 3 and in the vicinity of the opening formed by opening the small door 11, respectively. When the hose 5 is pulled out, the hose guide body 6 is guided well and the hose 5 is pulled out. A support rod 25 fixed to the upper wall of the main body 9, the large door 10 and the small door 11, and a cylindrical roller 26 rotatably fitted to the support rod 25. Consists of.

The nozzle 7 is equipped with a cock 27, is connected to the tip of the hose 5, is placed on a small door 11 in a closed position, is folded, and is opened from the opening formed by opening the small door 11 when the small door 11 is opened. It is designed to descend with the hose 5.

The stopper 8 is provided in the fire hydrant box 1 and controls the amount of lowering of the nozzle 7.

Specifically, the stopper 8 is a horizontal fixing piece 28 hung vertically on the upper wall of the main body 9 of the fire hydrant box 1, and is vertically rotatably supported on the lower surface of the fixing piece 28 so that the stopper 8 is A spring (not shown) that is interposed between a movable piece 29 that can hold a part of the hose 5 and a fixed piece 28 and the movable piece 29 and that biases the movable piece 29 toward the fixed piece 28 side. ) And the fixed piece 29 and the movable piece 29 hold and hold the tip side of the hose 5.

Further, the biasing force of the spring is such that the movable piece 29 is held in a horizontal position when the nozzle 7 falls due to its own weight, and the movable piece 29 rotates downward when the operator pulls the hose 5 downward with an appropriate force. Is set. Furthermore, the fixed piece 28 and the movable piece 29 are arranged at a certain distance from the tip of the hose 3 so that the tip of the nozzle 7 is located slightly above the head of the person when the nozzle 7 falls and is in a hanging state. keeping.

Then, when the small door 11 is opened, the nozzle 7 falls from the small door 11 by its own weight and descends together with the hose 5, and when the nozzle 7 descends by a predetermined distance, the lowering is restricted by the stopper 8 and drooping state. When the operator pulls the nozzle 7 and the hose 5 downward from this state, the movable piece 29 rotates and the hose 5 falls out from between the fixed piece 29 and the movable piece 29.

In addition, a start switch (not shown) for the pressurized water feeder is provided in the fire hydrant box 1, and the start switch is turned on as the hose reel 3 rotates to activate the pressurized water feeder. Has been done.

Next, the operation of the fire hydrant device will be described.

When a fire occurs, the operator pushes the push button or the dedicated push button of the fire alarm installed on the cash register or wall of a supermarket, for example, and the fire hydrant valve 1 is opened and the lock by the electromagnetic solenoid 13 is released. The small door 11 is opened by its own weight.

Along with this, an opening for drawing out the hose is formed, and the nozzle 7 descends from the opening together with the hose 5 by a predetermined distance and becomes in a suspended state. As a result, the hose 5 can be pulled out even though the fire hydrant device is installed on the ceiling 12. Further, since the nozzle 7 is lowered only by a predetermined distance by the stopper 8, the nozzle 7 does not collide with the operator.

After that, when the operator holds the nozzle 7 and the tip of the hose 5 and pulls them in the direction of fire, the hose 5 comes off the stopper 8, and the hose reel 3 rotates in the direction in which the hose 5 is fed out. The door 11 is sequentially pulled out from the opening formed by opening the door 11.

At this time, the hose 5 is folded in half and the hose reel 3
Since it is wound around, the hose 5 can be pulled out completely from the hose reel 3 by pulling the hose 5 about half the length thereof, and the hose 5 can be pulled out in a short time.

Further, since the hose 5 is guided by the hose guide body 6,
Good and smooth withdrawal from the opening without catching. Of course, since the hose 5 is pulled out from a high place, even if a large number of display shelves are arranged in the room such as a temporary supo market, it is easy for the hose 5 to be caught on the display shelves when the hose 5 is pulled out. Without it, the hose 5 can be pulled out smoothly.

Further, when the hose reel 3 rotates in the direction in which the hose 5 is drawn out, the activation switch is activated to activate the pressurized water supply device.

Then, when the hose 5 is completely pulled out from the hose reel 3 and fed out near the fire position, the cock 27 of the nozzle 7
Open to discharge water and extinguish the fire.

Since the fire hydrant device is installed in a substantially central position on the ceiling 12, the hose 5 can be pulled out in any direction of 360 degrees, which greatly expands the fire fighting area. (See FIG. 9).

On the other hand, after use, the cock 27 of the nozzle 7 and the fire hydrant valve 4 are closed, the pressurized water supply device is stopped, and the locking mechanism 14
To manually open the large door 10. Then, the support arm 2 swings from the horizontal position to the vertical position, and the hose reel 3 is taken out from the inside of the fire hydrant box 1 in a vertical posture from the inside of the fire hydrant box.

Then, the dried hose 5 is folded in two and wound around the hose reel 3 from the bent portion.

At this time, since the hose reel 3 is located outside the fire hydrant box 1, the hose 5 can be stored easily.

When the winding of the hose 5 is completed, the hose 5 is held by the stopper 8, the hose reel 3 and the nozzle 7 are housed in the fire hydrant box, and the large door 10 and the small door 11 are set to the closed position.

Although the fire hydrant box 1 is installed in the ceiling 12 in the above embodiment, it may be attached to the ceiling surface in other embodiments.

In the above embodiment, the small door 11 is automatically opened by using the solenoid 13, but in other embodiments, the small door 11 may be opened manually. For example,
As shown in FIG. 10, the large door 10 is provided with a lock mechanism 14 having the same structure as the lock mechanism 14 shown in FIG. 5, whereby the small door 11 is held in the closed position, and the operation string 30 is connected to the operation pin 19. This may be hung from the large door 10 via the guide roller 31. In this case, when the operator pulls the operation string 30, the operation pin 19 is retracted, the locked state is released, and the small door 11 is opened. Further, when the small door 11 is in the closed position, it is elastically locked to the main body 9 or the large door 10, and
The small door 11 may be opened by suspending the operation cord on 11 and manually pulling the operation cord.

In the above embodiment, the solenoid valve is used as the fire hydrant valve 4, but in other embodiments, the fire hydrant valve 4 may be of a structure that automatically opens and closes as the hose reel 3 rotates.

In the above embodiment, the hose guide body 6 is composed of the support rod 25 and the roller 26, but the structure and shape of the hose guide body 6 are not limited to those of the above embodiment, and when the hose is pulled out. Any structure and shape may be used as long as the hose 5 can be guided well, and the mounting position thereof is also arbitrary.

In the above embodiment, the stopper 8 is provided with the fixed piece 28 and the movable piece 29.
However, the stopper 8 is not limited to that of the above-mentioned embodiment, and any kind of stopper can be used as long as the nozzle 7 descends with the hose 5 by a predetermined distance when the small door 11 is opened. It may have a configuration.

In the above-described embodiment, the operator grasps and pulls the drooping nozzle 7, but in another embodiment, the nozzle 7 is provided with an operation string that can be drooped from the nozzle 7 when the nozzle 7 is drooping. Alternatively, the nozzle 7 may be lowered by connecting and pulling the operation string. In this case, the descending amount of the nozzle 7 can be set to be small, and it is possible to reliably prevent the nozzle 7 from colliding with the operator when the nozzle 7 descends.

In the above embodiment, the hose 5 is pulled out while the hose reel 3 is housed in the fire hydrant box 1. However, in other embodiments, the hose reel 3 is taken out of the fire hydrant box 1 and then the hose 5 is pulled out. You can

In the above-described embodiment, the fire hydrant box 1 is provided with the start-up switch for the pressurized water supply device so that when the hose reel 3 is rotated, the start-up switch is automatically actuated. It may be arranged at another place, for example, at a cash register in a supermarket, and manually operated by an operator. Alternatively, the activation switch may also be used as the push button of the fire alarm so that the pressurized water supply device is activated when the push button is pressed.

In the above embodiment, only one fire hydrant device was installed on the ceiling 12 in the room, but in a place where the floor area is considerably large, several fire hydrant devices should be installed on the ceiling 12 with a predetermined interval. May be. In addition, a fire hydrant device may be installed on the ceiling 12 on the second floor and above.

(Effects of the Invention) As described above, in the fire hydrant device of the present invention, the fire hydrant box is installed at a substantially central position of the ceiling of the building, and the hose reel wound with a hose is housed in the fire hydrant box. Since the hose can be pulled out from the vicinity, the hose can be pulled out in any direction of 360 degrees during fire extinguishing activities, greatly expanding the area where fire extinguishing activities can be done. As a result, even in a building with a large floor area such as a supermarket, it is possible to cover the entire room with only one fire hydrant, and compared to the conventional installation on the wall surface of the building. Therefore, the number of installations is small, installation work is simple and easy, and the equipment cost can be greatly reduced.

Also, since the hose is pulled out from a high place, even if the display shelves are placed indoors like in a supermarket,
The hose can be pulled out relatively smoothly without being easily caught on the display rack when the hose is pulled out.

Further, since the cloth hose is wound around the hose reel, a small and thin hose reel can be used. as a result. The length and width of the fire hydrant box can be reduced, and the device itself can be downsized.

In addition, the cloth hose is folded in two and wound around the hose reel from the bent part, and the base end of the hose is directly connected to the fire hydrant valve. There is no need to install it, and the structure of the water channel is extremely simple.

In addition, since the fire hydrant device is installed on the ceiling, it does not become an obstacle when not in use.

Further, since the hose reel can be taken out of the fire hydrant box by the support arm when the large door is opened, the hose can be easily and easily stored in the hose reel.

Furthermore, a stopper is installed in the fire hydrant box to control the amount of drop of the nozzle, and when the small door is opened, the nozzle will drop with the hose for a specified distance. Collisions can be avoided and safety is excellent.

[Brief description of drawings]

FIG. 1 is a plan view of a ceiling-mounted fire hydrant device according to an embodiment of the present invention, FIG. 2 is a plan view of the fire hydrant device with large doors and small doors removed, and FIG. 3 is A- of FIG. A sectional view taken along the line A, FIG. 4 is a sectional view taken along the line BB of FIG. 3, and FIG. 5 is taken along the line C- of FIG.
C line enlarged cross-sectional view, FIG. 6 is a cross-sectional view of the hose reel with a cloth hose wound around the hose reel, and FIG. 7 is a cross-sectional view similar to FIG. 3 with the nozzle lowered from the fire hydrant box, Fig. 8 is a cross-sectional view similar to Fig. 3 showing the state in which the large door is opened, the hose reel is taken out of the fire hydrant box, and the hose is stored. Fig. 9 shows the fire hydrant device installed at the approximate center of the building ceiling. FIG. 10 is a schematic plan view of the above state, and FIG. 10 is a partial sectional view showing another locking means of the small door. 1 is a fire hydrant box, 3 is a hose reel, 4 is a fire hydrant valve, 5 is a hose, 7 is a nozzle, 8 is a stopper, 10 is a large door, 11 is a small door, and 12 is a ceiling.

Claims (1)

[Scope of utility model registration request] Claims: 1. A fire hydrant box (1) which is installed at a substantially central position of a ceiling (12) and has a large door (10) and a small door (11) which can be independently opened and closed on the bottom surface, and a fire hydrant box ( 1) Swingably mounted in a horizontal position and a vertical position in a large door (1
The plate-shaped support arm (2) protruding to the outside of the fire hydrant box (1) when it is opened (0) is rotatably attached to the tip of the support arm (2), and the large door (10) ) Is taken out to the outside of the fire hydrant box (1) and is arranged in the fire hydrant box (1) with a hose reel (3) formed to have a width slightly larger than the diameter of the hose (5), A fire hydrant valve (4) connected to a high-pressure water source is folded in half at an approximately middle portion, and in this state, the bent portion is sequentially wound around a hose reel (3) and is formed by opening a small door (11). A cloth hose (5) that can be pulled out from the opening and has a proximal end connected to the fire hydrant valve (4), and a small door (11) connected to the tip of the hose (5) and in the closed position.
Nozzle (7) that is placed in the fire hydrant box (1) and that is lowered along with the hose (5) from the opening when the small door (11) is opened, and regulates the descent amount of the nozzle (7). A ceiling-mounted fire hydrant device comprising a stopper (8) for