JP6901927B2 - Fire hydrant device - Google Patents

Description

The present invention relates to a fire hydrant device installed in a tunnel.

The fire hydrant device installed in the tunnel is provided with a fire hydrant door that opens and closes the outlet of the fire extinguishing hose on the front surface of the housing (see Patent Document 1).

Japanese Unexamined Patent Publication No. 2005-318972

The fire hydrant door is manually opened and closed by the operator, and is preferably lighter.

Further, the drawer port may be provided with a door stop (a stopper that determines a limit position of movement in the closing direction by hitting the fire hydrant door) that hits when the fire hydrant door is closed. When the door stop is provided, if the fire hydrant door and the door stop are in direct contact with each other, there is a problem that a loud noise may be produced when the fire hydrant door is closed. Further, there is a problem that damages (scratches, dents, paint peeling, etc.) may occur in the parts that come into contact with each other.

Further, a damper for controlling the opening / closing operation of the fire hydrant door may be provided between the fire hydrant door and the outlet (see Patent Document 1). As the damper, a type having an arm-shaped support portion for supporting the fire hydrant door has been conventionally used (same as above). However, in the case of a conventionally used damper, when the fire hydrant door is closed, the entire body including the arm-shaped support portion is housed in the housing, so that the entire body can be stored in the housing. Space needs to be provided. Therefore, there is a problem that the dampers conventionally used are an obstacle to the thinning of the fire hydrant device at present.

In view of the above circumstances, the present invention makes it possible to reduce the weight of a fire hydrant door in a fire hydrant device provided with a fire hydrant door that opens and closes by rotating the outlet of a fire hydrant hose in the front-rear direction on the front surface of the housing. The purpose is to. Another object of the present invention is to prevent a loud noise or damage caused by the fire hydrant door hitting the door when it is closed. Another object of the present invention is to make it possible to reduce the thickness of the fire hydrant device while controlling the opening / closing operation of the fire hydrant door.

This invention provides a fire hydrant apparatus comprising a fire hydrant door that opens and closes by rotating the outlet of the extinguishing hose in front of the housing, the fire hydrant door, the thickness of that is the rotating shaft side end portion of the pivot It becomes smaller as it goes from the side to the side of the displacement side end , and a protrusion that protrudes inward of the door is provided at the end of the rotation shaft side of the back surface thereof, and the protrusion is provided. This is a fire hydrant device characterized in that a nozzle holder for supporting a fire extinguishing nozzle is provided on the inner side of the door.

Further, in the present invention, the outlet is provided with a door stop in which a portion of the fire hydrant door on the side of the displacement side end of rotation hits and determines a limit position of rotation in the closing direction of the fire hydrant door. The fire hydrant device is characterized in that a cushioning material is provided at a portion of the fire hydrant door corresponding to the door stop and / or the door stop on the displacement side.

Further, in the present invention, the fire hydrant door is rotatably attached to the outlet by a hinge member, and the hinge member is a damper hinge having a damper for controlling the opening / closing operation of the fire hydrant door. It is a characteristic fire hydrant device.

According to the present invention, the thickness of the fire hydrant door becomes smaller from the end side on the rotation shaft side to the end side on the displacement side, so that the weight of the fire hydrant door can be reduced. Further, since the moment when opening and closing the fire hydrant door can be reduced, the damper can be sufficiently operated, the fire hydrant door can be opened slowly, and the fire hydrant door can be closed with a light force.

Further, according to the present invention, since the cushioning material is provided between the door stop and the fire hydrant door, the fire hydrant door hits the door stop, causing a loud noise or damage to the parts that hit each other. You can prevent it from happening.

Further, according to the present invention, the opening / closing operation of the fire hydrant door can be controlled by the hinge member that rotatably attaches the fire hydrant door to the outlet is a damper hinge having a damper that controls the opening / closing operation of the fire hydrant door. However, it is possible to eliminate the need to provide a space for storing the damper in the housing, and the housing can be made thinner. That is, the fire hydrant device can be made thinner.

It is a front view of the whole fire hydrant device which concerns on one Embodiment of this invention, (a) shows the state which the fire hydrant door is open, and (b) shows the state which the fire hydrant door is closed. .. It is the top view which showed the back side of the fire hydrant door alone in the fire hydrant device of the same above. FIG. 2A is a side view taken along the line A in FIG. 2, and FIG. 2B is a cross-sectional view taken along the line BB in FIG. It is an enlarged sectional view of the door stop part provided in the drawer port of the housing in the fire hydrant device of the same above.

Regarding an example of the embodiment of the present invention, a fire hydrant device having a type of fire hydrant door (forward tilting door) that rotates downward to open when opened as a fire hydrant door that rotates and opens and closes the outlet of a fire hose. The case of applying to the above will be described with reference to FIGS. 1 to 4 as an example. The present invention can also be applied to a fire hydrant device having a type of fire hydrant door (flip-up door) that rotates upward to open, or a fire hydrant having a type of fire hydrant door that rotates laterally to open. It can also be applied to devices.

First, the overall configuration of the fire hydrant device 1 will be briefly described.

As shown in FIG. 1, the fire hydrant device 1 has a housing 2 including a hose storage portion (not shown) in which a fire extinguishing hose 6 is housed. A front panel 2a is provided on the front surface of the housing 2, and the front panel 2a includes a drawer 3 for pulling out a fire extinguishing hose to the outside, a fire hydrant door 4 for opening and closing the drawer 3, and the like. It is provided. The back surface 4c of the fire hydrant door 4 has a nozzle holder 6b for supporting the fire extinguishing nozzle 6a provided at the tip of the fire extinguishing hose 6, an operation lever 7 for opening and closing the fire hydrant valve (not shown), and a fire hydrant. A latch mechanism portion 8 or the like for locking / unlocking the door 4 in the closed state is provided (see FIG. 1A). Further, on the surface 4d of the fire hydrant door 4, an operation handle 11 for unlocking the closed state of the fire hydrant door 4 by the latch mechanism 8 to open the fire hydrant door 4 is provided (see FIG. 1 (b)). ).

Although not shown, the fire hydrant device 1 is installed in a tunnel. Specifically, the housing 2 is housed in a box punch formed on the inner wall of the tunnel, hung on the inner wall, placed on the audit road beside the road, embedded in the audit road, and the like. Then, it is installed in the tunnel.

Next, each component of the fire hydrant device 1 will be described in detail.

[Fire hydrant door]
The fire hydrant door 4 is rotatably attached to the drawer port 3 by a hinge member 5, and opens and closes the drawer port 3 by rotating around the rotation axis of the hinge member 5. In the present embodiment, as the fire extinguishing door 4, the lower end 4b is rotatably attached to the lower end 3b of the outlet 3 by a hinge member 5 having a rotation axis along the lateral direction (width direction) of the housing 2. A forward tilting door that rotates downward to open the outlet 3 when opened is used, and a door having a rotation angle of about 180 degrees when opened is used. FIG. 1A shows a state in which the fire hydrant door 4 is open. As shown in the figure, when the fire hydrant door 4 is opened, the fire hydrant door 4 hangs substantially downward from the lower end portion 3b of the drawer port 3 and rotates until the back surface 4c is in a state of substantially facing the front direction. In this embodiment, two hinge members 5 are provided.

Then, as shown in FIGS. 3 (a) and 3 (b), the thickness of the fire hydrant door 4 becomes smaller from the side of the rotation shaft side end portion of the rotation to the side of the rotation displacement side end portion. ing. That is, in the present embodiment, the thickness becomes smaller from the lower end portion (rotation shaft side end portion) 4b side to the upper end portion (displacement side end portion) 4a side. The thickness of the fire hydrant door 4 is uniform on the left and right. That is, the thickness of the fire hydrant door 4 becomes smaller from the lower end portion 4b side to the upper end portion 4a side uniformly on the left and right sides.

As described above, the thickness of the fire hydrant door 4 becomes smaller from the side of the rotation shaft side end portion to the rotation displacement side end portion side, so that the weight of the fire hydrant door 4 can be reduced. Further, since the position of the center of gravity of the fire hydrant door 4 approaches the rotation axis of rotation and the moment when opening and closing the fire hydrant door 4 can be reduced, the damper can be sufficiently operated and the opening / closing operation is facilitated. Can be done. For example, in the present embodiment, the fire hydrant door 4 is a forward tilting door, but in this case, the fire hydrant door 4 can be slowly rotated downward to open the fire hydrant door 4, and the fire hydrant door 4 can be moved upward with a light force. It can be rotated and closed.

Here, in the present embodiment, the thickness of the fire hydrant door 4 is assumed to be continuously reduced over the entire length from the lower end portion 4b to the upper end portion 4a. As for the degree of the small change, for example, the thickness t2 of the upper end portion 4a can be made smaller than half of the thickness t1 of the lower end portion 4b. For example, the thickness t1 of the lower end portion 4b can be set to about 30 mm, the inclination of the thickness change toward the upper end portion 4a, each θ can be set to about 3 degrees, and the thickness t2 of the upper end portion 4a can be set to about 12 mm.

Further, the fire hydrant door 4 can be formed by bending a metal plate or the like, but in the case of the present embodiment, as shown in FIG. 3, a back plate formed by bending the upper, lower, left and right ends. It has a shape without a door. That is, in the present embodiment, the thickness of the fire hydrant door 4 means the width of the bent portion of the upper, lower, left, and right ends. The weight can be reduced by reducing the width of the bent portion of the left and right end portions toward the upper end portion 4a side and by reducing the width of the bent portion of the upper end portion 4a. Therefore, the above-mentioned advantages due to the weight reduction can be obtained. The fire hydrant door 4 may have a shape with a back plate. That is, it may be a thin and flat box shape. In that case as well, as in the case without the back plate, the weight can be reduced by reducing the width of the bent portion of the left and right end portions toward the upper end portion 4a side, or by reducing the width of the bent portion of the upper end portion 4a. And the above-mentioned advantage due to its weight reduction can be obtained.

[Door]
As shown in FIG. 1, the drawer port 3 is provided with a door stop 9 that the fire hydrant door 4 hits when the fire hydrant door 4 is closed. The door stop 9 functions as a stopper that determines a limit position for rotation of the fire hydrant door 4 on the closing direction side. In the case of the present embodiment, since the fire hydrant door 4 is a forward tilting door, the door stop 9 is provided at the upper end portion 3a of the drawer port 3, and the portion of the fire hydrant door 4 on the back surface 4c side of the upper end portion 4a is provided. It is located so that it hits. Further, in the case of the present embodiment, since the latch mechanism portion 8 is provided on the back surface 4c of the fire hydrant door 4 at the center of the upper end portion 4a, the door stop 9 avoids the latch mechanism portion 8 and is left and right thereof. There are two locations corresponding to.

Then, as shown in FIG. 4, the door stop 9 is provided with a cushioning material 10 as a cushioning material on the surface where the fire hydrant door 4 hits. The cushion material 10 can be made of elastic and durable cushion material such as a high-density sponge.

Since the cushioning material 10 as a cushioning material is provided on the surface of the fire hydrant door 4 of the door stop 9 in this way, when the fire hydrant door 4 hits the door stop 9, a loud noise is produced or a portion where the fire hydrant door 4 hits each other. It is possible to prevent damage to the door. The cushioning material 10 serving as a cushioning material may be provided between the door stop 9 and the fire hydrant door 4, and instead of or in addition to the door stop 9, the upper end portion 4a of the fire hydrant door 4 corresponding to the door stop 9 It may be provided on the back surface 4c side portion of the above.

[Latch mechanism]
On the back surface 4c of the fire hydrant door 4, a latch mechanism portion 8 is provided located at the center of the upper end portion 4a. As shown in FIGS. 2 and 3A, the latch mechanism portion 8 has a latch 8a at the upper end portion, and the latch 8a appears and disappears at the upper edge portion of the upper end portion 4a of the fire hydrant door 4 to form a housing. The closed state of the fire hydrant door 4 is locked / unlocked by engaging with the back surface of the front panel 2a of the body 2.

Here, the closing position of the fire hydrant door 4 is determined by the locking position between the latch 8a and the back surface of the front panel 2a. However, since the cushion material 10 is provided on the door stop 9, the fire hydrant door 4 is closed. When the fire hydrant door 4 is closed, the latch 8a can be locked to the back surface of the front panel 2a while the fire hydrant door 4 is pressed against the cushion material 10, and the manufacturing error can be absorbed to absorb the manufacturing error and the fire hydrant door 4 and the front panel 2a. Can be made flush with each other.

[Damper hinge]
As the hinge member 5, a damper hinge having a damper for controlling the opening / closing operation of the fire hydrant door 4 is used. The damper hinge has a damper as an integral part of the hinge. Therefore, while the opening / closing operation of the fire hydrant door 4 can be controlled, it is possible to eliminate the need to provide a space for accommodating the damper inside the housing 2, and the housing 2 can be made thinner. That is, the fire hydrant device 1 can be made thinner.

In the case of the present embodiment, the fire hydrant door 4 is a forward tilting door that is rotated downward to open. The damper hinge generates torque so that it becomes heavier when the door is opened. As a result, when the fire hydrant door 4 is opened, the opening speed can be controlled to prevent the fire hydrant door 4 from being suddenly opened.

Here, as described above, the thickness of the fire hydrant door 4 becomes smaller from the side of the rotation shaft side end portion to the rotation displacement side end portion, and the weight of the fire hydrant door 4 itself can be reduced. In addition, the position of the center of gravity can be brought closer to the rotation axis of rotation to reduce the moment at the time of opening and closing.

Although an example of the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made.

For example, the thickness of the fire hydrant door 4 may be reduced stepwise from the end side on the rotation shaft side of the rotation to the end side on the displacement side of the rotation, or may be in the middle or at the end. A portion having no change in thickness may be provided on both or one of the portions.

Further, the fire hydrant door 4 may be rotated by approximately 90 degrees instead of rotating by approximately 180 degrees between the closed position and the open position.

Further, the fire hydrant door 4 may be a type of fire hydrant door (flip-up type door) that rotates upward to open. In this case, the upper end portion 4a of the fire hydrant door 4 is rotatably attached to the upper end portion 3a of the drawer port 3 by a hinge member having a rotation axis along the lateral direction (width direction) of the housing 2. Further, it may be a type of fire hydrant door that rotates laterally to open. In this case, one of the side portions is rotatably attached to one of the corresponding side portions of the drawer port 3 by a hinge member having a rotation axis along the vertical direction (height direction) of the housing 2. Become. By adopting a fire hydrant door that rotates in the lateral direction to open, the burden on the hinge member can be reduced.

1: Fire hydrant device 2: Housing 2a: Front panel 3: Drawer port 3a: Upper end 3b: Lower end 4: Fire hydrant door 4a: Upper end 4b: Lower end 4c: Back surface 4d: Surface 5: Hinge member 6: For fire extinguishing Hose 6a: Fire extinguishing nozzle 6b: Nozzle holder 7: Operation lever 8: Latch mechanism 8a: Latch 9: Door stop 10: Cushion material 11: Operation handle

Claims (3)

In a fire hydrant device equipped with a fire hydrant door that opens and closes by rotating the outlet of a fire hose on the front of the housing.
The fire hydrant door is smaller as the thickness of that goes to the side of the displacement side end portion from a side of the rotating shaft side end portion of the rotation, also, the rotation shaft side end portion of the rotation of the rear surface A fire hydrant device characterized in that a protruding portion protruding inward of the door is provided, and a nozzle holder for supporting a fire extinguishing nozzle is provided on the side portion of the protruding portion on the inner side of the door. The outlet is provided with a door stop that is hit by a portion of the fire hydrant door on the displacement side end of rotation and that determines a limit position for movement in the closing direction of the fire hydrant door. The fire hydrant device according to claim 1, wherein a cushioning material is provided on a portion of the fire hydrant door corresponding to the door stop on the displacement side end. The fire hydrant door is rotatably attached to the outlet by a hinge member, and the hinge member is a damper hinge having a damper for controlling the opening / closing operation of the fire hydrant door. Or the fire hydrant device according to 2.

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