JPH0733807Y2 - 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 around which a hose is wound is rotatably disposed 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. In addition, the nozzle is connected to the tip of the hose, and when a fire occurs, if the nozzle and the tip of the hose are held and pulled, the hose can be quickly pulled out by the rotation of the hose reel.

(Problems to be solved by the invention) By the way, since the conventional fire hydrant device is installed on the wall surface of the building, the area where the hose can be pulled out is limited to the range of 180 degrees at the maximum, and the length of the hose is also hose. It was limited by the size of the reel. For this reason, the conventional fire hydrant device has a significantly limited area where fire fighting activities can be performed, and it is not possible for a building with a large floor area to cover the entire room with only one fire hydrant device. The equipment had to be installed. 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 a hose and passes between the display shelves, etc. , The hose could pull on 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.

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 to pull out the hose satisfactorily and smoothly. (EN) Provided is a ceiling-mounted fire hydrant device capable of reducing the number.

(Means for Solving the Problem) The invention of the present application is a fire hydrant box provided with a large door that is installed at a substantially central position of a ceiling and can be opened and closed independently on a lower surface, and a small door that is automatically opened by a remote push button operation. ， The hose reel rotatably housed in the fire hydrant box, the fire hydrant valve arranged inside the hose reel and connected to the high pressure water source, and the rotational movement of the hose reel in the hose stretching direction is the valve rod of the fire hydrant valve. To the clutch mechanism to open the fire hydrant valve,
A shape-retaining hose that is wound around a hose reel and that can be pulled out from an opening formed by opening a small door, and whose base end is connected to the outlet side of an automatic fire hydrant valve, and the tip of the shape-retaining hose. A basic structure of the invention is a nozzle that is connected to the nozzle and that descends with the hose from the opening when the small door is opened, and a stopper that is provided in the fire hydrant box and that regulates the amount of the nozzle that descends.

(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, the nozzle does not collide with the operator.

When the operator holds the nozzle and the tip of the hose and pulls them in the fire direction, the hose reel rotates in the direction for feeding the hose, and the hose is sequentially pulled out from the opening formed by opening the small door.

Since this fire hydrant device is installed at the approximate center of the building ceiling, the hose can be pulled out in any direction from 360 degrees.
The area where firefighting can be done is greatly expanded. As a result, even in a building with a large floor area, the number of fire hydrant devices to be 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.

Furthermore, since an automatic fire hydrant valve is used, water can be sent quickly.

After use, the automatic fire hydrant valve is closed, the large door is opened, the hose reel is taken out of the fire hydrant box, and the 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 an automatic fire hydrant valve, 5 is a 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 consists of doors 10 and small doors 11, etc., and each door 10, 11 is located at the approximate center position of the ceiling 12 of a building such as a supermarket.
Are buried so that they are 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 the dedicated start button is pushed, the rod 16 retracts and comes off the small door 11. Therefore, when the rod 16 is disengaged from the small door 11, the small door 11 is unlocked, pivots downward due to its own weight, and reaches the open position (solid line position in FIG. 6).

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 due to its own weight, and reaches the open position (solid line position in FIG. 7).

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. 7).
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 large 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 box 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 includes a pair of side plates 23 and a plurality of bridges 24 that connect the side plates 23 to each other. One side plate 24 is fitted to a spacer 25 rotatably fitted on the reel shaft 22,
By fixing the side plate 23 to the spacer 25 with the nut 26, the side plate 23 is horizontally rotatably supported by the reel shaft 22 (see FIG. 8).

The reel shaft 22 has a tubular shape and is vertically screwed to an elbow 27 fixed to the tip of the support arm 2. The reel shaft 22 has a passage through which a fluid passes, and the inlet side of the passage is an elbow.
It is connected to a high-pressure water source via 27 and a water supply pipe 28.

Further, a partition wall 30 having a through hole 29 is integrally formed with the reel shaft 22 in a passage in a substantially middle portion of the reel shaft 22, and
A fluid outlet 31 is formed on the peripheral wall of the reel shaft 22 near the partition wall 30.

A brake mechanism 32 is provided at the upper end of the reel shaft 22 to operate by the passage of water to the passage of the reel shaft 22 and to apply an appropriate braking force to the hose reel 3.

This brake mechanism 32, as shown in FIG. 8 and FIG.
Piston 33 slidably inserted in the upper end of reel shaft 22
And the O-ring 34 fitted to the piston 33 and the reel shaft 22.
Cap nut 35 that is screwed to the end of the
And an angular rod that is integrally connected to the piston 33 and is inserted into the cap nut 35 so as not to rotate and to move in the axial direction.
36, and a brake plate 38 having a rubber brake shoe 37 fixed to the tip of the rod 36 and capable of contacting the inner surface of the side plate 23 of the hose reel 3 and the like. Therefore, when water is passed through the passage of the reel shaft 22, the piston 33 is caused by the water pressure.
Is slid upward in the reel shaft 22, and the brake shoe 37 is pressed against the inner surface of the side plate 23, so that the brake shoe 37 and the like cannot rotate.
The braking force is applied to the.

Incidentally, the magnitude of the braking force at this time is set to such an extent that the hose reel 3 is not hindered from rotating when the hose 5 is stretched.

The automatic fire hydrant valve 4 is disposed in the hose reel 3 and is connected to a high-pressure water source, and a clutch mechanism 39 provided between the hose reel 3 and the automatic fire hydrant valve 4 causes the hose reel 3 to move. It is designed to open and close automatically with forward and reverse rotation.

Specifically, as shown in FIGS. 8 and 9, the automatic fire hydrant valve 4 has a valve seat 40 inside, a tubular valve box that also serves as the reel shaft 22, and a valve box (reel shaft). Partition wall 30 at the shaft center position of 22)
It is composed of a valve rod 41 that is screwed into the valve so that it can move up and down, and a valve body 43 that is rotatably attached to the lower end of the valve rod 41 and that is equipped with a disk packing 42 that abuts against the valve seat 40. , Valve stem 41
When it is rotated in the normal and reverse directions, it is moved up and down so that the disc packing 42 of the valve element 43 is abutted against the valve seat 40 and opens and closes the passage of the reel shaft 22.

The clutch mechanism 39, as shown in FIGS.
At the axial center position of the reel shaft 22, a rotary shaft 45, which is slidably rotated by the piston 33 and the like and is slidably supported in the axial direction, is provided with a meshing portion 44 notched in a cross shape at the lower end thereof. axis
The friction plate 46 fixed to the upper end of the hose reel 3 and fitted to the inner surface of the side plate 23 of the hose reel 3 is integrally formed with the upper end of the valve rod 41, and is non-rotatable in the meshing portion 44 of the rotating shaft 45 in the axial direction. Cross-shaped meshing portion 47 slidably fitted to the valve rod 41
A male screw portion 48 formed on the outer peripheral surface of the, a female screw portion 49 formed on the partition wall 30 and screwed to the male screw portion 48, and a washer 50 between the rotary shaft 22 and the valve rod 41. It is composed of a compression spring 51, etc., which is interposed and biases the rotary shaft 22 in a direction away from the valve rod 41 so that the friction plate 46 is always fitted to the side plate 23.

The lengths of the meshing portions 44 and 47 are set so that the meshing portions 44 and 47 always mesh regardless of the movement stroke of the valve rod 41.
The lengths of 48 and 49 are set so that the male screw portion 48 is disengaged from the female screw portion 49 when the valve rod 41 moves upward by a predetermined stroke. The direction of the screw of each screw portion 48, 49 is such that the valve rod 41 moves upward when the hose reel 3 rotates in the direction in which the hose 5 is paid out.

When the hose reel 3 rotates in the direction in which the hose 5 is drawn out when the fire hydrant valve 4 is fully closed, the friction plate 46 causes the rotation shaft 45 to rotate in the same direction, and the valve rod 41 meshed with the rotation shaft 45.
Also rotates in the same direction and moves upward, and the valve element 43 separates from the valve seat 40. As a result, the fire hydrant valve 4 is opened and water can be supplied.

When the valve rod 41 moves upward by a predetermined stroke due to the rotation of the hose reel 3, the male screw portion 48 is disengaged from the female screw portion 49, and the valve rod 41 contacts the partition wall 30 with the male screw portion 48 by the urging force of the compression spring 51. It will rotate in that position in the combined state. As a result, the fire hydrant valve 4 is kept in the fully opened state, and is in the fully opened state while the hose reel 3 is rotating in the direction of feeding the hose 5 (see FIG. 9).

On the other hand, when the fire hydrant valve 4 is fully opened, the hose reel 3 moves to the hose 5.
When rotating in the winding direction, the friction plate 46
45 rotates in the same direction, and the valve rod 41 meshed with this also rotates in the same direction. At this time, the male screw portion 48 of the valve rod 41 is separated by the urging force of the compression spring 51 from the partition wall 30.
Since it rotates in the state of being engaged with, the male screw portion 48 and the female screw portion 49 are automatically meshed and moved downward during the rotation. As a result, the valve body 43 is seated against the valve seat 40, and the fire hydrant valve 4 is fully closed (see FIG. 8).

When the fire hydrant valve 4 is fully closed, the downward movement of the valve rod 41 is restricted, so that the hose reel 3 rotates while slipping on the friction plate, and the hose 5 can be continuously rotated in the winding direction. .

Although not shown in the drawing, the upper surface of the friction plate 46 and the inner surface of the side plate 23 that abuts with the claw are formed with claws of a suitable shape that can mesh with each other, and the hose hydrant valve 4 is fully closed. Only when the reel 3 rotates in the direction in which the hose 5 is wound up, the claw portion is allowed to idle.

The hose 5 has a shape-retaining property, is wound around the bridge 24 of the hose reel 3, and can be pulled out from an opening formed by opening the small door 11.

Also, the base end of the hose 5 is, as shown in FIG.
The reel shaft 22 is fitted on the outlet 31 of the reel 22 so as to be slidably rotatable.
It is fitted in a substantially T-shaped rotary pipe 52 which is always in communication with the passage of the above, and is connected to the fire hydrant valve 4 through the rotary pipe 52.

The hose guide body 6 is arranged near the periphery of the hose reel 3 and in the vicinity of the opening formed by opening the small door 11, and guides the hose 5 well when the hose 5 is pulled out and wound up. 5, a support rod 53 fixed to the upper wall of the main body 9 and the large door 10 and a cylindrical roller rotatably fitted to the support rod 53 are provided. 54 and.

The nozzle 7 is equipped with a cock 55 and is mounted on the small door 11 which is connected to the tip of the hose 5 and is in the closed position. 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 composed of a pair of elastic holding pieces 56, which is hung vertically on the upper wall of the main body 9 above the small door 11 and detachably holds the tip end side of the hose 5.

The holding force of the holding piece 56 is set so that the hose 5 does not come off from the holding piece 56 when the nozzle 7 falls due to its own weight, and easily comes off when the operator pulls the hose 5 downward. Further, the holding piece 56 holds a portion at a certain distance from the tip of the hose 3 so that the tip of the nozzle 7 is positioned slightly above the head of the person when the nozzle 7 falls and is in a hanging state. .

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 descending by a predetermined distance, the descending amount is regulated by the stopper 8 and the drooping state. become.

In the fire hydrant box 1, there is provided a starter switch (not shown) for a pressurized water supply device including a pump, a motor, etc., and the starter switch is turned on / off in accordance with the forward / reverse rotation of the hose reel 3. Therefore, the pressurized water supply device is started and stopped.

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

When a fire occurs, if the operator presses a push button or a dedicated start button of a fire alarm installed in the cash register or wall of a supermarket, the lock by the electromagnetic solenoid 13 is released, and the small door 11 is opened by its own weight. It

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 fire direction, the hose reel 3 rotates in the direction in which the hose 5 is extended, and the hose 5 is opened by opening the small door 11. Will be drawn in sequence.

At this time, since the hose 5 is guided by the hose guide body 6, the hose 5 can be smoothly and smoothly drawn out from the opening without being pulled. Of course, since the hose 5 is pulled out from a high place, even if a large number of display shelves are arranged in a room such as a supermarket, the hose 5 will not be easily caught on the display shelves when the hose 5 is pulled out. The hose 5 can be pulled out smoothly.

Also, when the hose reel 3 rotates in the direction of feeding the hose 5, the start switch is activated to start the pressurized water supply device, and the automatic fire hydrant valve 4 is automatically opened by the clutch mechanism 39 to enable water supply. . As a result, even one operator can pull out the hose 5 and open the fire hydrant valve 4 at the same time, which enables quick water discharge.

Further, when the fire hydrant valve 4 is opened, the brake mechanism 32 is activated by the water pressure, and the braking force is applied to the hose reel 3. As a result, while pulling out the hose 5, the hose reel 3
Does not rotate at an unnecessarily high speed due to inertia, so that it is possible to prevent the hose 5 from unraveling and to smoothly pull out the hose 5.

Then, when the hose 5 is pulled out to the vicinity of the fire position, the cock 55 of the nozzle 7 is opened and water is discharged to extinguish the fire.

In addition, 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, and the fire-extinguishing area is greatly expanded (see FIG. 12). .

On the other hand, after use, the cock 55 of the nozzle 7 is closed and the lock mechanism 14 is manually operated to 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 to the outside of the fire hydrant box in a vertical posture.

Then, rotate the hose reel 3 and attach the hose 5 to it.
Take up.

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 hose reel 3 rotates, the pressurized water supply device stops and the fire hydrant valve 4 is automatically closed by the clutch mechanism 29.

When the winding of hose 5 is completed, hold hose 5 with
, 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 in other embodiments.

In the above embodiment, the small door 11 is automatically opened by using the solenoid 14, but in other embodiments, the small door 11 may be opened manually. For example,
As shown in FIG. 13, the large door 10 is provided with a lock mechanism 14 having the same structure as the lock mechanism 14 shown in FIG. 5, the small door 11 is held in the closed position by the lock mechanism 14, and the operation pin 57 is attached to the operation pin 57. It is also possible to connect them and hang them from the large door 10 via the guide rollers 58. Therefore, when the operator pulls the operation string 57, 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 operation string is hung on the small door 11 and the small door 11 is opened by manually pulling the operation string. You may do it.

In the above embodiment, the hose reel 3 is arranged so as to be taken out from the fire hydrant box 1, but in other embodiments, the hose reel 3 is used.
May be disposed in the fire hydrant box 1 so as to be rotatable and non-removable.

In the above embodiment, the hose reel 3 is rotatably attached to the support arm 2, but in other embodiments, the support arm 2 is omitted and the hose reel 3 is rotatably attached to the upper surface of the large door 10. Is also good.

In the above-mentioned embodiment, the fire hydrant valve 4 is arranged in the hose reel 3 and is automatically opened / closed as the hose reel 3 rotates. However, in another embodiment, a solenoid valve is provided in the fire hydrant box 1. It may be arranged. Further, the structure and operating means of the fire hydrant valve 4 are not limited to those in the above embodiment, and for example, Japanese Utility Model Publication No. Sho 63-41011 and Japanese Utility Model Laid-Open No. 130755.
The one disclosed in the publication may be adopted.

Although the fire hydrant valve 4 is automatically opened and closed in the above embodiment, it may be manually opened and closed. That is, as shown by the alternate long and short dash line in FIG. 8, a hole 59 is bored in the center of the side plate 23 of the upper piece of the hose reel 3 and the rotary shaft 45 is extended upward so as to project upward from the hole 59. A handle 60 may be provided in this portion, and the handle 60 may be manually rotated in the normal and reverse directions to rotate the rotary shaft 45 and the valve rod 41 in the normal and reverse directions to open and close the fire hydrant valve 4.

In the above embodiment, the hose guide body 6 is composed of the support rod 53 and the roller 54, but the structure and shape of the hose guide body 6 are not limited to those of the above embodiment, and the hose 5 can be pulled out. The hose 5 may have any structure and shape as long as it can guide the hose 5 well at the time of winding and at the time of winding, and its mounting position is also arbitrary.

In the above-mentioned embodiment, the stopper 8 is composed of the pair of holding pieces 56, but the stopper 8 is not limited to that of the above-mentioned embodiment, and when the small door 11 is opened, the nozzle 7 and the hose 5 are separated by a predetermined distance. Any structure may be used as long as it descends.

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 at 360 degrees during fire extinguishing activities, greatly expanding the area where fire extinguishing activities can be performed. 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.

Furthermore, since the fire hydrant device is installed on the ceiling, it does not hinder this when not in use.

In addition, when the small door is opened, the nozzle descends together with the hose by a predetermined distance. Therefore, it is possible to avoid collision between the nozzle and the operator when the nozzle descends, which is excellent in safety.

In addition, if the hose reel can be taken out of the fire hydrant box by opening the large door, the hose can be stored easily.

[Brief description of drawings]

FIG. 1 is a bottom view of a ceiling-mounted fire hydrant device according to an embodiment of the present invention, FIG. 2 is a bottom view of the fire hydrant device with a large door and a small door 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 cross-section, Fig. 6 is a cross-section similar to Fig. 3 with the nozzle lowered from the fire hydrant box, and Fig. 7 is the state where the large door is opened and the hose reel is taken out of the fire hydrant box and the hose is stored. FIG. 8 is a sectional view similar to FIG. 3, and FIG. 8 shows an essential part of a hose reel incorporating a fire hydrant valve, a brake mechanism and a clutch mechanism, and an enlarged vertical sectional view of the fire hydrant valve fully closed and the brake mechanism inactive. , Fig. 9 is an enlarged vertical cross-sectional view of the fire hydrant valve fully open and the brake mechanism activated, and Fig. 10 shows Fig. 8
FIG. 11 is a sectional view taken along the line DD of FIG. 11, FIG. 11 is a sectional view taken along the line EE of FIG. 8, and FIG. 12 is a schematic plan view showing a state where the fire hydrant device is installed at a substantially central position on the ceiling of a building. The drawing is a partial cross-sectional view showing another locking means of the small door. 1 is a fire hydrant box, 3 is a hose reel, 4 is an automatic 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.

Claims (1)

[Scope of utility model registration request] Claims: 1. A fire hydrant box installed at a substantially central position of a ceiling (12) and provided with a large door (10) on its lower surface that can be opened and closed independently and a small door (11) that is automatically opened by remote push button operation. (1), a hose reel (3) rotatably housed in the fire hydrant box (1), a fire hydrant valve disposed inside the hose reel (3) and connected to a high-pressure water source, and a hose reel (3) ) Is transmitted to the valve rod (41) of the fire hydrant valve (4) and the clutch mechanism (39) for opening the fire hydrant valve (4) is wound around the hose reel (3). , A shape-retaining hose (5) that can be pulled out from an opening formed by opening the small door (11) and whose base end is connected to the outlet side of the automatic fire hydrant valve (4), and a shape-retaining hose It is connected to the tip of (5) and the hose ( ) And the nozzle (7) which falls together with, provided in the fire hydrant box (1), a ceiling-mounted fire hydrant apparatus characterized by comprising a stopper (8) for regulating the amount of drop in the nozzle (7).