JP6932508B2 - Fire hydrant device - Google Patents

Description

The present invention relates to a fire hydrant device, and more particularly to a fire hydrant device including a first door and a second door.

Conventionally, there is a fire hydrant device installed in a tunnel (see, for example, Patent Documents 1 and 2). Such a fire hydrant device was installed by embedding the wall surface of the tunnel in a space created by unboxing it, but in recent years, the tunnel has been excavated by the shield method. In this case, the tunnel It becomes difficult to secure the installation space for the fire hydrant device by unboxing the wall surface of the fire hydrant.

Therefore, in a tunnel excavated by the shield method, the fire hydrant device is not embedded in the wall surface of the tunnel, but is installed in an empty space such as an audit path. In such a fire hydrant device provided on the audit road, it may be necessary for the user to operate the fire hydrant device by standing on the road surface one step lower than the audit road due to the space of the audit road. ..

Japanese Unexamined Patent Publication No. 2006-181057 Japanese Unexamined Patent Publication No. 2014-217646

When operating the fire hydrant device, it is necessary to open the fire hydrant door that closes the opening for pulling out the fire extinguishing hose. When the user operates the fire hydrant device while standing on the road surface, the fire hydrant door is operated at a higher position by the amount of the step between the audit road or the like where the fire hydrant device is installed and the road surface.

Even in the fire hydrant devices described in Patent Documents 1 and 2, it is possible to open the fire hydrant door sufficiently easily, but if the fire hydrant door can be provided at a lower position, the fire hydrant device can be operated from the road surface. Is certainly more convenient. For that purpose, it is necessary to provide an opening in which the fire hydrant door is closed at a lower position.

However, in the conventional fire hydrant device, in order to temporarily hold the fire hydrant door below the fire hydrant door when the door is opened, it is necessary to secure a space equivalent to that of the fire hydrant door under the opening. It was difficult to install the fire hydrant door at a lower position because reducing the size of the fire hydrant door, that is, the size of the opening, may hinder the pulling out of the fire hose.

Therefore, an object of the present invention is to provide a fire hydrant device capable of providing an opening for pulling out a fire extinguishing hose at a lower position and opening the fire hydrant door more easily.

The present invention provides a housing for accommodating a fire extinguishing hose, an opening provided in the housing for pulling out the fire extinguishing hose to the outside of the housing, and a fire hydrant door for opening and closing the opening. with which, the fire hydrant door, a first door which is arranged in parallel in the vertical direction has a second door, a first door, the fire hydrant door open A rotating door that is rotatably provided in at least one of the forward and backward tilting directions when the door is opened, and the second door is in the ascending or descending direction when the fire hydrant door is opened. It is a fire hydrant device characterized by being an elevating door provided so as to be movable on at least one side.

Further, the present invention includes a housing for accommodating a fire extinguishing hose, an opening provided in the housing for pulling out the fire extinguishing hose to the outside of the housing, and a fire hydrant door for opening and closing the opening. comprises a, the fire hydrant door, a first door which is arranged in parallel in the vertical direction has a second door, and the first door and the second The doors arranged above the doors are elevating doors that are movable in the ascending direction when the fire hydrant door is opened, and are inside the first door and the second door. The door arranged below is a fire hydrant device characterized by being an elevating door provided so as to be movable in a downward direction when the fire hydrant door is opened.

Further, the present invention provides a hooking portion for hooking at least one of the first door and the second door when the fire extinguishing door is closed, and the one door is provided with a hooking portion. An operation unit for releasing the hook by the hook is provided, and when the hook is released by the hook, the other door of the first door or the second door is opened. It is also possible to make the door possible. Further, in the present invention, the first door can be provided above the second door and rotatably connected to the second door, and at that time, the second door can be rotatably connected to the second door. Can be an elevating door provided so as to be movable in the downward direction when the fire hydrant door is opened.

Further, in the present invention, the first door is a rotating door that is rotatably provided in a forward tilting direction when the fire hydrant door is opened, and the back surface of the first door is described as described above. It is also possible to provide a nozzle attachment portion to which a nozzle portion to which one end of the fire extinguishing hose is connected is attached.

Further, in the present invention, the first door and the second door can be provided so as to be parallel to each other in the front-rear direction when the fire hydrant door is opened. Further, in the present invention, the first door and the second door can be provided so as to be vertically separated from each other when the fire hydrant door is opened. Further, in the present invention, in conjunction with the opening of the door provided below the first door or the second door, the first door or the second door is located above the first door. It is also possible to make the provided door open.

In the present invention, the expressions "first" and "second" are used, but these expressions are only used to distinguish each configuration, and the numbers and the order thereof are used. Is meaningless. Further, in the present invention, the front-back and up-down directions are defined with the side where the opening of the housing is provided as the front surface and the fire hydrant device installed. Further, in the present invention, the front and back of the fire hydrant door (including the first door and the second door) shall be defined with the fire hydrant door closed.

In the present invention, the fire hydrant door has a first door and a second door, and each door can be rotated in either a forward tilting direction or a backward tilting direction, or can be moved in an ascending or descending direction. The space required for accommodating the fire hydrant door can be made narrower when the door is opened. Therefore, the opening, that is, the fire hydrant door can be provided at a lower position, and the fire hydrant device can be operated more easily from the road surface or the like.

It is a front view which shows the 1st Embodiment of this invention. It is a schematic diagram which shows the state of opening of the fire hydrant door in 1st Embodiment of this invention, and is the figure which shows the state at the time of closing a door. It is a schematic diagram which shows the state of opening of the fire hydrant door in 1st Embodiment of this invention, and is the figure which shows the state at the time of starting the opening of an upper door. It is a schematic diagram which shows the state of opening of the fire hydrant door in 1st Embodiment of this invention, and is the figure which shows the state which the opening of the lower door is completed. It is a schematic diagram which shows the state of opening the fire hydrant door in 1st Embodiment of this invention, and is the figure which shows the state which the opening of a fire hydrant door is completed. It is a front view which shows the 2nd Embodiment of this invention. It is a schematic diagram which shows the state of opening of the fire hydrant door in the 2nd Embodiment of this invention, and is the figure which shows the state at the time of closing a door. It is a schematic diagram which shows the state of opening of the fire hydrant door in the 2nd Embodiment of this invention, and is the figure which shows the state at the time of starting the opening of a lower door. It is a schematic diagram which shows the state of opening of the fire hydrant door in the 2nd Embodiment of this invention, and is the figure which shows the state which the opening of an upper door is completed. It is a schematic diagram which shows the state of opening the fire hydrant door in the 2nd Embodiment of this invention, and is the figure which shows the state which the opening of a fire hydrant door is completed. It is a schematic diagram which shows the state of opening of the fire hydrant door in the 3rd Embodiment of this invention, and is the figure which shows the state at the time of closing a door. It is a schematic diagram which shows the state of opening of the fire hydrant door in the 3rd Embodiment of this invention, and is the figure which shows the state at the time of starting the opening of a fire hydrant door. It is a schematic diagram which shows the state of opening of the fire hydrant door in the 3rd Embodiment of this invention, and is the figure which shows the state which the opening of an upper door is completed. It is a schematic diagram which shows the state of opening the fire hydrant door in the 3rd Embodiment of this invention, and is the figure which shows the state which the opening of a fire hydrant door is completed. It is a schematic diagram which shows the state of opening of the fire hydrant door in the 4th Embodiment of this invention, and is the figure which shows the state at the time of closing a door. It is a schematic diagram which shows the state of opening the fire hydrant door in the 4th Embodiment of this invention, and is the figure which shows the state at the time of starting the opening of a fire hydrant door. It is a schematic diagram which shows the state of opening the fire hydrant door in the 4th Embodiment of this invention, and is the figure which shows the state which the opening of a fire hydrant door is completed.

The first embodiment of the present invention will be described with reference to FIGS. 1 and 2. First, the configuration of the fire hydrant device 1 of the present embodiment will be described. The fire hydrant device 1 includes a housing 2 for accommodating a fire extinguishing hose (not shown), and is installed in, for example, an audit path in a tunnel. The housing 2 has a front panel 3 on the front surface thereof.

The front panel 3 is provided with an opening 4 for pulling out the fire extinguishing hose to the outside of the housing 2 in the event of a fire, and the opening 4 is provided so as to be always closed and openable in the event of a fire. A fire hydrant door 5 which is a means for opening and closing the opening 4 is provided. The opening 4 is provided below the opening so that a holding space 6 for temporarily holding the fire hydrant door 5 is formed when the fire hydrant door 5 is opened. In the present embodiment, the front panel 3 is provided with a fire extinguisher door 8, an indicator light 9, a transmitter 10, and the like for taking out the fire extinguisher 7 housed in the housing 2 to the outside of the housing 2.

The fire hydrant door 5 has two doors 11 and 12 arranged in parallel in the height (up and down) direction (hereinafter, the door 11 arranged above is arranged below the upper door 11). The provided door 12 is conveniently referred to as the lower door 12). The upper door 11 is a rotary door rotatably provided in the forward tilting direction A10 when the fire hydrant door 5 is opened, and the lower door 12 is a downward direction when the fire hydrant door 5 is opened. It is a lift door provided on the A20 so as to be movable.

The upper door 11 is rotatably connected to the upper end side of the lower door 12 in the forward tilting direction A10 when the door is opened by a rotatably connectable connecting means. As the connecting means, for example, a damper hinge 13 is adopted. The damper hinge 13 is urged so that the upper door 11 does not suddenly open when the upper door 11 opens. On the back surface 11a of the upper door 11, an operation unit 14 for releasing the hooking unit, which will be described later, is provided. In the present embodiment, the upper door 11 and the lower door 12 are formed to have substantially the same size.

The lower door 12 can be raised and lowered in the descending direction A20 when the door is opened and in the ascending direction A21 when the door is closed, accompanied by the raising and lowering urging means provided in the housing 2. The elevating and lowering urging means can be appropriately selected according to the design of the fire hydrant device 1, but in the case of the present embodiment, the lower door 12 is urged so as not to suddenly open in the downward direction. For example, it is possible to employ a pair of dampers (not shown) provided near the left and right edges of the opening 4. In the present embodiment, as a damper, a cylinder filled with oil or oil and gas, and a piston rod formed by partitioning the inside of the cylinder into two cylinder chambers and slidable in the cylinder in the height direction are provided. Uses a piston-type damper that has.

In the present embodiment, a hooking portion (not shown) is provided at the upper end edge 4a of the opening 4, that is, a portion facing the upper end of the upper door 11 when the fire hydrant door 5 of the front panel 3 is closed. The upper door 11 is hooked by the hooking portion and the operating portion 14 when the door is closed. This prevents the lower door 12 from suddenly moving in the downward direction A20 and the fire hydrant door 5 from being opened. For example, a latch is adopted as the hooking portion.

Further, the upper door 11 is provided with a handle portion 15 provided on the back surface 11a with an operation portion 14 for releasing the hooking of the upper door 11 by the hooking portion (latch). In the present embodiment, the handle portion 15 also serves as a grip portion to be gripped by the user when the upper door 11 is opened.

Next, the door opening operation of the fire hydrant door 5 in the fire hydrant device 1 of the present embodiment will be described.
(1) When the user grips the handle portion 15 of the upper door 11 and performs a latch unlocking operation and pulls it toward the user, the upper door 11 rotates in the forward tilting direction A10 by its own weight. At this time, the latch between the upper door 11 and the front panel 3 is released, and the lower door 12 can move in the descending direction A20 (see FIG. 2B).
(2) The lower door 12 moves in the descending direction A20 by its own weight (see FIG. 2C).
(3) The upper door 11 further rotates in the forward tilting direction A10, and the opening operation of the fire hydrant door 5 is completed (see FIG. 2D). At this time, the fire hydrant door 5 is held in the holding space 6 in a folded state around the damper hinge 13.

Therefore, in the fire hydrant device 1 of the present embodiment, when the fire hydrant door 5 is opened, the upper door 11 and the lower door 12 can be arranged in parallel in the front-rear direction, so that at least the upper door of the fire hydrant door 5 can be arranged. It suffices to secure a holding space 6 having substantially the same size as one of the larger doors 11 and the lower door 12 below the opening 4. Since the upper door 11 and the lower door 12 are smaller than the size of the opening 4, the size of the holding space 6 can be reduced without changing the size of the opening 4.

As a result, the fire hydrant device 1 of the present embodiment can be provided with the opening 4 further below, even from a road surface or the like located one step lower than the audit road or the like on which the fire hydrant device 1 is installed. It is possible for the user to operate it more easily.

A second embodiment of the present invention will be described with reference to FIGS. 3 and 4. The difference from the first embodiment is that the upper door 11 is an elevating door that can move in the ascending direction A21 when the door is opened, and the lower door 12 is a rotating door that can rotate in the forward tilting direction A10. be. The configuration of the same reference numerals as those of the first embodiment is the same as that of the first embodiment, and thus the description thereof will be omitted.

In the present embodiment, the upper door 11 is provided as an elevating door movably provided by an elevating means so as to be movable in the ascending direction A21 when the door is opened and in the descending direction A20 when the door is closed. As the elevating means, for example, a pair of gas springs (not shown) is adopted. Further, the lower door 12 is connected to the lower end edge 4b of the opening 4 via a damper hinge 13, and is provided as a rotating door that can rotate in the forward tilting direction A10.

The upper door 11 is hooked to the lower door 12 by a latch (not shown), which prevents the upper door 11 from unexpectedly moving in the ascending direction A21, and when the latch is disengaged, the ascending direction. It is designed to move to A21. Further, the lower door 12 is provided with a handle portion 15, and the handle portion 15 is provided with an operation portion 14 for releasing the latch on the back surface 12a of the lower door 12.

The operation of opening the fire hydrant door 5 in the fire hydrant device 1 of the present embodiment is as shown below.
(1) The user grips the handle portion 15 of the lower door 12 and operates the operation portion 14 to rotate the lower door 12 in the forward tilting direction A10. At this time, the engagement between the upper door 11 and the lower door 12 by the latch is released, and the upper door 11 can be moved in the ascending direction A21 (see FIG. 4B).
(2) In conjunction with the release of the latch between the upper door 11 and the lower door 12, that is, in conjunction with the opening of the upper door 11, the upper door 11 is moved in the ascending direction A21 by the gas spring. (See Figure 4C).
(3) The lower door 12 further rotates in the forward tilting direction A10 due to its own weight, and the opening operation of the fire hydrant door 5 is completed (see FIG. 4D).

Therefore, in the fire hydrant device 1 of the present embodiment, since the upper door 11 and the lower door 12 are double doors, a holding space 6 having at least substantially the same size as the lower door 12 is secured below the opening 4. It will be good to do it. Since the lower door 12 is smaller than the size of the opening 4, the size of the holding space 6 can be reduced without changing the size of the opening 4. That is, as in the first embodiment, the user can operate it more easily even from the road surface or the like.

A third embodiment of the present invention will be described with reference to FIG. The difference from the first embodiment is that both the upper door 11 and the lower door 12 are rotating doors that can rotate in the forward tilting directions A10 and A11 when the door is opened. The configuration of the same reference numerals as those of the first embodiment is the same as that of the first embodiment, and thus the description thereof will be omitted.

In the present embodiment, the lower door 12 is rotatably connected in the forward tilting direction A10 when the lower end edge of the opening 4 is opened via a damper hinge 13 which is an example of the connecting means. Further, the lower door 12 is provided with a handle portion 15, and the handle portion 15 is provided with an operation portion 14 for releasing the latch on the back surface 12a of the lower door 12.

The upper door 11 is rotatably connected in the forward tilting direction A11 when the door is opened to the upper end edge 4a of the opening 4 via, for example, a rotatable connecting means (not shown) such as a damper hinge. There is. Further, the upper door 11 is latched on the lower door 12 by a latch (not shown), and is urged in the forward tilting direction A11 by an urging means such as a gas spring (not shown). Therefore, the upper door 11 is prevented from being opened unexpectedly by the latch, and when the latch is released, the upper door 11 rotates in the forward tilting direction A11.

The operation of opening the fire hydrant door 5 in the fire hydrant device 1 of the present embodiment is as shown below.
(1) The user grips the handle portion 15 of the lower door 12 and operates the operation portion 14 to rotate the lower door 12 in the forward tilting direction A10. At this time, the engagement between the upper door 11 and the lower door 12 by the latch is released, and the upper door 11 can be moved in the forward tilting direction A11 (see FIG. 5B).
(2) The upper door 11 is rotated in the forward tilting direction A11 by the urging means in conjunction with the release of the engagement by the latch between the upper door 11 and the lower door 12 (see FIG. 5C). ..
(3) The opening operation of the fire hydrant door 5 is completed when the lower door 12 further rotates in the forward tilting direction A10 due to its own weight (see FIG. 5D).

Therefore, in the fire hydrant device 1 of the present embodiment, since the upper door 11 and the lower door 12 are double doors, a holding space 6 having at least substantially the same size as the lower door 12 is secured below the opening 4. It will be good to do it. Since the lower door 12 is smaller than the size of the opening 4, the size of the holding space 6 can be reduced without changing the size of the opening 4. That is, as in the first embodiment, the user can operate it more easily even from the road surface or the like.

A fourth embodiment of the present invention will be described with reference to FIG. The difference from the first embodiment is that the upper door 11 is an elevating door that can move in the ascending direction A21 when the door is opened, and the lower door 12 is an elevating door that can move in the descending direction A20 when the door is opened. That is. The configuration of the same reference numerals as those of the first embodiment is the same as that of the first embodiment, and thus the description thereof will be omitted.

In the present embodiment, the upper door 11 is provided as an elevating door movably provided in the ascending direction A21 when the door is opened and in the descending direction A20 when the door is closed by a gas spring which is an example of the elevating means. ing. The upper door 11 is hooked to each other by a latch (not shown) with the lower door 12, whereby the upper door 11 is prevented from being opened unexpectedly.

Further, the lower door 12 is provided as an elevating door that can be moved in the descending direction A20 when the door is opened and in the ascending direction A21 when the door is closed by a damper which is an example of the elevating means. A portion 15 is provided, and the handle portion 15 is provided with an operation portion (not shown) for releasing the latch on the back side of the lower door 12.

The operation of opening the fire hydrant door 5 in the fire hydrant device 1 of the present embodiment is as shown below.
(1) When the user grasps the handle portion 15 of the lower door 12 and operates the operation portion 14 to release the engagement by the latch between the upper door 11 and the lower door 12, the upper door 11 is moved in the ascending direction A21. The lower door 12 moves in the descending direction A20 by its own weight (see FIG. 6B).
(2) The upper door 11 moves in the ascending direction A21 by the gas spring in conjunction with the release of the engagement by the latch between the upper door 11 and the lower door 12. As a result, the opening operation of the fire hydrant door 5 is completed (see FIG. 6C).

Therefore, in the fire hydrant device 1 of the present embodiment, since the upper door 11 and the lower door 12 are double doors, a holding space 6 having at least substantially the same size as the lower door 12 is secured below the opening 4. It will be good to do it. Since the lower door 12 is smaller than the size of the opening 4, the size of the holding space 6 can be reduced without changing the size of the opening 4. That is, as in the first embodiment, the user can operate it more easily even from the road surface or the like.

Although the present invention has been described above based on the above-described embodiment, the present invention is not limited to the above-described embodiment and can be appropriately modified without changing the gist of the invention.

For example, (i) as in the above embodiment, when the doors 11 and 12 provided as the rotating doors are rotatably provided in the forward tilting directions A10 and A11 when the doors 11 and 12 are opened, the thin housing 2 is provided. However, if there is enough space in the housing 2, these rotating doors are opened in the backward tilting direction (opposite to the forward tilting directions A10 and A11). It is also possible to provide it so as to rotate in the direction of).

(Ii) The back surface 11a, the second and the third of the upper door 11 which is rotatable in the forward tilting direction A10 and moves in the descending direction A20 when the fire hydrant door 5 is opened as shown in the first embodiment. A nozzle mounting portion (not shown) is provided on the back surface 12a of the lower door 12 rotatably provided in the forward tilting direction A10 as shown in the embodiment, and the nozzle mounting portion is provided on the tip side of the fire hose. It is also possible to attach a nozzle that the user grasps when pulling out the fire hose. By doing so, when the fire hydrant door 5 is opened, the nozzle is lowered to a relatively low position of the fire hydrant device 1 together with the upper door 11 and the lower door 12, so that the fire is extinguished from the road surface as well. The hose can be pulled out more easily, and the operation of the fire hydrant device 1 from the road surface becomes easier.

(Iii) In the second to fourth embodiments, the upper door 11 is opened in conjunction with the opening of the lower door 12, but the upper door 11 and the lower door 12 are opened by the user himself / herself. It is also possible to open the door by hand.

(Iv) In the third embodiment, the upper door 11 and the lower door 12 are configured to open on both sides, but the upper door 11 is rotatably connected to the lower door 12 as in the first embodiment. It is also possible to fold the fire hydrant door 5 in two steps when opening the door. Further, at this time, for example, when the upper door 11 is opened, it is formed so as to be rotatable in both the forward tilting direction A10 and the backward tilting direction, and the upper door 11 can be accommodated on the back surface side of the lower door 12. It is also possible to provide a space, fold the fire hydrant door 5 so that the upper door 11 is accommodated in the space, and arrange the upper door 11 and the lower door 12 in the front-rear direction.

(V) In the fourth embodiment, the upper door 11 and the lower door 12 are provided as an elevating door that moves in different directions, but when the door is opened, both are provided as an elevating door that moves in the same direction. It is also possible to provide it. In this case, for example, the upper door 11 and the lower door 12 are pulled apart, or one door is accommodated in the other door, and the fire hydrant door 5 is opened as in the first embodiment. At that time, the upper door 11 and the lower door 12 are configured to be parallel to each other in the front-rear direction.

(Vi) In the above embodiment, the fire hydrant door 5 is composed of the upper door 11 and the lower door 12, but a middle door (not shown) or the like is provided, and the fire hydrant door 5 is composed of three or more doors. It is also possible to do so.

(Vii) In the above embodiment, the upper door 11 and the lower door 12 provided as the elevating door are adapted to fit on the back side of the front panel 3 when the fire hydrant door 5 is opened. It is also possible to fit on the surface side of the panel 3.

1 Fire hydrant device 2 Housing 3 Front panel 4 Opening 4a Upper edge 4b Lower edge 5 Fire hydrant door 6 Holding space 7 Fire extinguisher 8 Fire extinguisher door 9 Indicator light 10 Transmitter 11 Upper door 11a Back side 12 Lower door 12a Back side 13 Damper hinge 14 Operation unit 15 Handle unit A10 Forward tilt direction A11 Forward tilt direction A20 Down direction A21 Up direction

Claims (8)

A housing that houses a fire hose and
An opening provided in the housing for pulling out the fire extinguishing hose to the outside of the housing,
It is provided with a fire hydrant door for opening and closing the opening.
The fire hydrant door has a first door which is arranged in parallel in the vertical direction, and the second door, and
The first door is a rotating door that is rotatably provided in at least one of the forward tilting direction and the backward tilting direction when the fire hydrant door is opened.
The second door is a fire hydrant device provided so as to be movable in at least one of an ascending or descending direction when the fire hydrant door is opened. The first door is a rotating door that is rotatably provided in the forward tilting direction when the fire hydrant door is opened, and is provided below the second door .
The fire hydrant device according to claim 1 , wherein the second door is an elevating door that is provided so as to be movable in an ascending direction when the fire hydrant door is opened. A housing that houses a fire hose and
An opening provided in the housing for pulling out the fire extinguishing hose to the outside of the housing,
It is provided with a fire hydrant door for opening and closing the opening.
The fire hydrant door has a first door which is arranged in parallel in the vertical direction, and the second door, and
The first door and the door arranged above the second door are elevating doors provided so as to be movable in the ascending direction when the fire hydrant door is opened.
The first door and the door arranged below the second door are characterized by being an elevating door provided so as to be movable in a downward direction when the fire hydrant door is opened. Fire hydrant device. The fire hydrant device according to any one of claims 1 to 3 , wherein the first door and the second door are provided so as to be vertically separated from each other when the fire hydrant door is opened. The second door is an elevating door provided so as to be movable in a downward direction when the fire hydrant door is opened.
The fire hydrant device according to claim 1 , wherein the first door is provided above the second door and is rotatably connected to the second door. Said first door and said second door, fire hydrant apparatus according to claim 1 or 5, wherein the benzalkonium provided so as to parallel to the longitudinal direction upon door opening the fire hydrant door. The door provided above the first door or the second door opens in conjunction with the opening of the door provided below the first door or the second door. The fire hydrant device according to any one of claims 1 to 4, wherein the door is closed. When the fire hydrant door is closed, a hooking portion for hooking at least one of the first door and the second door is provided.
The one door is provided with an operation unit for releasing the hook by the hook portion.
When latching is released by該掛stop portion, among the first door or the second door, one of claims 1 to 7 and the other door, characterized in that the possible door opening The fire hydrant device described in.

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