Fire hydrant equipment

Abstract

To provide a fire hydrant device that allows an operator of the fire hydrant device to execute fire extinguishing work more easily.SOLUTION: There is provided a fire hydrant device 1 equipped with a housing 2. The housing 2 is provided with a hose 3, a nozzle 4, and a hydrant valve 5. An extension joint 16 is provided for connecting the nozzle 2 and the hose 3, and the extension joint 16 is provided with a handle 17 for conveying the hose 3. An operation process display part 41 is provided on a rear face 21a side of a door 21 of the housing 2, illustrating an operation process of the fire hydrant device 1 in the fire extinguishing work in five stages. A nozzle operation display part is provided on the nozzle 4, illustrating an operation explanation for a switching operation between spray water discharge and bar-like water discharge.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a fire hydrant device, and more particularly to a fire hydrant device equipped with a fire hose and a fire nozzle. [Background technology]

[0002] Conventionally, there has been a fire hydrant device equipped with a hose and a nozzle. In such a fire hydrant device, a hose connected to a fire hydrant valve is stored in a housing in a coiled state, and a nozzle for discharging water for fire extinguishing is attached to the end of the hose (see, for example, Patent Documents 1 and 2).

[0003] Such fire hydrant devices are installed inside or near various buildings, such as cultural properties, commercial facilities, offices, public facilities, medical facilities, and apartment buildings, and are primarily used for initial fire extinguishing. To do so, the operator opens the door of the fire hydrant device's housing, removes the nozzle from the storage box, pulls out the hose, opens the hydrant valve inside the housing, moves to the source of the fire with the nozzle and extends the hose, and then opens the nozzle to spray water, thereby carrying out fire extinguishing activities. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-10255 [Patent Document 2] Japanese Patent Application Publication No. 2019-201753 Summary of the Invention [Problem to be solved by the invention]

[0005] The fire hydrant system is not intended to be used primarily by firefighters or other fire-fighting professionals, but by amateurs such as employees of the facility. As a result, the work of extending the hose to the source of the fire is also primarily performed by amateurs.

[0006] On the other hand, the work of extending a hose to the source of a fire is generally carried out with the fire hydrant valve open, i.e., with fire water being supplied to the hose. Therefore, when extending the hose, the weight of the water is added to the weight of the hose itself. In addition, the hose itself may undulate due to the water pressure inside the hose, even though this can be reduced to some extent by using a hose guide, etc.

[0007] In conventional fire hydrant devices, the nozzle is roughly cylindrical with almost no grip, so holding the nozzle and extending the hose, which has increased in weight when the hydrant valve is opened and fire water is supplied, requires a considerable amount of strength, particularly grip strength, making it difficult for an operator of the fire hydrant who is not an expert in fire fighting to extend the hose to the source of the fire. Therefore, conventional fire hydrant devices cannot be said to be easy for operators who are not experts in fire fighting to use in fire fighting activities.

[0008] Therefore, an object of the present invention is to provide a fire hydrant device that allows an operator of the fire hydrant device to more easily perform fire extinguishing operations. [Means for solving the problem]

[0009] The present invention provides A fire hydrant device for extinguishing cultural properties, A housing is provided in which a hose, a nozzle, and a fire hydrant valve are provided. R, The nozzle and the hose are further connected to an extension joint, and the extension joint includes: When extending the hose from the housing to the source of the fire For transporting the hose roughly circular A handle is provided The nozzle is capable of switching between at least a weak spray of water and a strong rod-shaped water jet, and when fire extinguishing water is supplied from a hose, by rotating the tip of the nozzle at the time of closing, a flow path is created between the shut-off valve and the valve seat, and the spray water jet is first started, and by further rotating the tip, it is possible to switch to the rod-shaped water jet, making it possible to prevent the rod-shaped water jet from hitting the cultural property and causing damage to the cultural property. This is a fire hydrant device characterized by the fact that it is

[0010] still , Book The invention relates to the above Nozzle At the tip part, To prevent skin from sticking in winter, Elastomer grip At the same time, most of the extension joint is covered with an elastomer covering portion. Furthermore, the present invention provides: The handle can be provided so as to extend upward from the extension joint, and the grip can be triangular in shape to make it wider and easier to hold. Also, the present invention can provide a nozzle operation display unit near the grip of the nozzle that illustrates how to switch between the spray water discharge and the rod-shaped water discharge.

[0011] Furthermore , Book The invention provides a door on the housing, and an operation process display unit on the back side of the door that illustrates the operation process of the fire hydrant device in five stages during fire extinguishing work. The operation step includes a step of pressing a start button of the operation device, and a step of grasping the handle, pulling the hose, and moving toward the source of the fire. It is possible. Furthermore, the present invention can be configured such that the nozzle has a nozzle body and the shut-off valve provided within the nozzle body, the shut-off valve is provided with a deflector, the nozzle body has a rotatable tip portion and the valve seat is provided downstream of the shut-off valve, the valve seat is arranged to be able to abut or press against the shut-off valve, and the nozzle is configured such that the shut-off valve performs a spiral motion in conjunction with the rotation of the tip portion, thereby allowing the deflector to move back and forth. [Effects of the Invention]

[0012] The present invention provides an extension joint that connects the nozzle and the hose, and a handle for carrying the hose on the extension joint, making it easier to extend the hose to the fire site, which allows the operator of the fire hydrant device to perform firefighting operations more easily. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 1 is a front view of an embodiment of the present invention. [Figure 2] FIG. 2 is a front view of the door of the embodiment of the present invention in an open state. [Figure 3] FIG. 3 is an enlarged view of a portion IIIA-IIIB in FIG. 2. [Figure 4] FIG. 1 is a right side view of an embodiment of the present invention. [Figure 5] FIG. 2 is an enlarged half-sectional view of a nozzle according to an embodiment of the present invention. [Figure 6] 1A and 1B are schematic diagrams showing the switching of the nozzle spray pattern in an embodiment of the present invention, in which (a) shows the state when closed, (b) shows the state when spraying water, and (c) shows the state when spraying water in a rod shape. [Figure 7] FIG. 3 is an enlarged view of a nozzle operation display unit according to the embodiment of the present invention. [Figure 8] FIG. 2 is an enlarged front view of an extension joint according to an embodiment of the present invention. [Figure 9] FIG. 9 is a half-sectional view taken along line IX-IX in FIG. 8. DETAILED DESCRIPTION OF THE INVENTION

[0014] An embodiment of the present invention will be described with reference to Fig. 1 to Fig. 9. The fire hydrant device 1 of this embodiment is intended to extinguish a cultural property as a fire target. First, the configuration of the fire hydrant device 1 of this embodiment will be described.

[0015] The fire hydrant device 1 includes a housing 2, and the housing 2 contains a hose 3, a nozzle 4, and a fire hydrant valve 5. In this embodiment, the housing 2 also contains an operating device 6, a lighting means 7, a reflecting means 8, and a pressure reducing valve 9.

[0016] The housing 2 includes a housing main body 20 and a door 21. In this embodiment, the housing main body 20 constitutes a back panel 22, side panels 23, a top panel 24, and a bottom panel 25 of the housing 2, and the door 21 also serves as the front panel of the housing 2. A hose guide 10 is provided upright on the bottom panel 25 to reduce swells in the hose 3 due to the water pressure of the fire-fighting water, etc.

[0017] Furthermore, at least the top surface 24a of the top plate 24 is provided so as to slope downward toward the front, and in this embodiment, is provided so as to protrude forward from the front plate of the housing 2 (in this embodiment, the door 21) so as to form a eaves portion 24b. By doing so, in the fire hydrant device 1 of this embodiment, rain and snow do not accumulate in the housing 2 even if the fire hydrant device 1 is installed outdoors near an object to be extinguished.

[0018] The door 21 is an example of a door provided in the housing 2, and is provided so as to be able to open during firefighting operations in order to operate the fire hydrant device 1. A lever 11 and an indicator light 12 are provided on the front surface side of the door 21, and an operation step display unit 13 is provided on the back surface 21a side of the door 21.

[0019] In this embodiment, the door 21 is provided as a left-opening door hinged to the housing body 20. The direction in which the door 21 can be opened can be selected as appropriate, and the door may be a right-opening door, an upward-opening door, or a downward-opening door, and may be a single door like the door 21, or a double-door, for example, a double-door. Furthermore, a front panel (not shown) may be provided separately on the housing 2, and the door 21 may be attached to the front panel.

[0020] The fire hydrant valve 5 is connected to a pump (not shown) for supplying fire water to the fire hydrant device 1 via a supply pipe 14, and is normally configured to block communication between the primary side (upstream side) and the secondary side (downstream side), but to open said communication during firefighting operations.In this embodiment, the fire hydrant valve 5 has a valve 50, and the hydrant can be opened and closed by turning the valve 50.

[0021] The operating device 6 is electrically connected to the pump and is provided to control the start of the pump. In this embodiment, the operating device 6 is configured as a start switch, for example, an ON / OFF button switch, and has a start button 60 and a stop button 61. The means for controlling the start of the pump is not limited to the operating device 6, and various start means can be appropriately adopted, and the installation location can also be selected appropriately. For example, instead of the operating device 6, the start switch (not shown) can also be provided on the fire hydrant valve 5.

[0022] The lighting means 7 is a light for illuminating the inside of the housing 2 and the vicinity of the fire hydrant device 1, for example, at night. In this embodiment, the lighting means 7 is provided as an LED light, and is attached to the inside of the top plate 24 of the housing 2. The position at which the lighting means 7 is attached can be changed as appropriate, and for example, it can also be provided on the inside of the back plate 22. The reflecting means 8 is provided to reflect the light of the lighting means 7 and to enhance the lighting effect of the lighting means 7, and is provided as, for example, a mirror body.

[0023] In this embodiment, the top plate 24 is provided with an opening / closing switch 15 that detects whether the door 21 is open or closed, and is configured so that the lighting means 7 lights up when the door 21 is opened when the amount of light around the fire hydrant device 1 is low, such as at night. The opening / closing switch 15 can be provided as a limit switch, for example.

[0024] Cultural properties are often located in places such as mountains where lighting facilities are not well established, and therefore, when natural light cannot be expected, such as at night, it can be difficult to operate the fire hydrant device. However, the fire hydrant device 1 of this embodiment is provided with lighting means 7 and / or reflecting means 8, making it easy to operate even in the dark.

[0025] The base end of the hose 3 is connected directly or indirectly to the hydrant valve 5, and the tip end is connected to the nozzle 4 via an extension joint 16, and is normally stored in a state where it is wound inside the hose guide 10 provided in the housing 2, for example, in an inwardly wound state. In this embodiment, the hose 3 is connected to the hydrant valve 5 via a pressure reducing valve 9, and the water discharge pressure is adjusted so as not to damage cultural properties, etc., due to the pressure of the water discharge.

[0026] The nozzle 4 is provided for discharging fire-fighting water W, and is a nozzle that can switch between spray water discharge S1 and rod-shaped water discharge S2. When fire-fighting water W is supplied from the hose 3, the nozzle 4 is configured so that, when closed, rotating the tip 40 starts the spray water discharge S1, and by further rotating the tip 40, it can be switched to rod-shaped water discharge S2.

[0027] In addition, the nozzle 4 is provided with a nozzle operation display unit 41 (see Figure 7) that illustrates how to switch between spray water discharge S1 and rod-shaped water discharge S2, so that even an operator of the nozzle 4 who is a novice in firefighting can understand at a glance that by rotating the tip portion 40 of the nozzle 4, fire-extinguishing water W will be discharged.

[0028] In this embodiment, the nozzle 4 has a nozzle body 42 to which a tip portion 40 is rotatably provided, and a shut-off valve 43 provided inside the nozzle body 42, and the shut-off valve 43 is provided with a deflector 44. In addition, the nozzle 4 is configured such that the shut-off valve 43 performs a spiral motion in conjunction with the rotation of the tip portion 40, thereby moving the deflector 44 back and forth.

[0029] A valve seat 45 is provided inside the nozzle body 42 downstream of the shut-off valve 43, and when the tip portion 40 is fastened, the shut-off valve 43 and the valve seat 45 come into contact or press-contact to close the nozzle 4. When the tip portion 40 is then loosened by one step, the shut-off valve 43 appears to move upstream, and a flow path F is created between the shut-off valve 43 and the valve seat 45, causing the fire-extinguishing water W to hit the deflector 44 and be dispersed, and the sprayed water S1 is discharged (see Figure 6(b)). When the tip portion 40 is then loosened by another step, the shut-off valve 43 moves further upstream, and the shut-off valve 43 and the valve seat 45 become further apart. The deflector 44 is housed inside the nozzle body 42, in other words, the deflector 44 is located inside the nozzle tip, and the influence of the deflector 44 is reduced, so that the fire extinguishing water W is discharged as a rod-shaped water discharge S2 (see Figure 6(c)).

[0030] Generally, because a rod-shaped water discharge has a strong water force, there is a possibility that the rod-shaped water discharge may hit a cultural property or the like directly when the hydrant is operated, causing an accident resulting in damage to the cultural property, etc. This is all the more likely for an operator who is a novice in firefighting activities. In this embodiment, in a fire hydrant device 1 having a nozzle that can switch between a rod-shaped water discharge and a spray water discharge, the fire extinguishing water W is first discharged as the spray water discharge S1, which has the weaker water force of the spray water discharge S1 and the rod-shaped water discharge S2, thereby preventing such an accident.

[0031] Furthermore, in the fire hydrant device 1 of this embodiment, the water pressure of the fire water W supplied to the nozzle 4 is reduced by connecting the fire hydrant valve 5 and the hose 3 via a pressure reducing valve 9, so that even if the rod-shaped water discharge S2 hits a cultural property or the like, the risk of damaging the cultural property or the like is reduced.

[0032] A grip 46 made of elastomer such as rubber is provided at the tip portion 40 of the nozzle 4. In conventional fire hydrant devices, the nozzle is made of metal, so when spraying water in winter or in cold regions, there is a risk that the cooled metal will come into contact with the skin and the skin will stick to the nozzle. However, in this embodiment, by providing the grip 46 at the tip portion 40, it is possible to prevent the skin from sticking to the nozzle.

[0033] Furthermore, by making the grip 46 out of elastomer, the tip 40 of the nozzle 4 is easier to turn and the switching operation can be performed with less force than with metal, since elastomer has greater friction resistance than metal. Furthermore, since elastomer is more elastic than metal, it is possible to prevent the tip 40 of the nozzle 4 from hitting a cultural property, etc., and damaging the cultural property.

[0034] 2, 8, and 9 is provided to connect the nozzle 4 and the hose 3, and is provided with a handle 17. In this embodiment, the majority of the extension joint 16 is covered with a covering 16a made of elastomer such as rubber to prevent damage to cultural property etc. when the extension joint 16 hits the cultural property etc. and to prevent the extension joint 16 from sticking to the skin in winter.

[0035] The handle 17 is provided for carrying the hose 3 when pulling out the nozzle 4 and hose 3 from the housing 2 and extending the hose 3 to the source of the fire. The handle 17 is provided to extend upward from the extension joint 16 and is generally annular in shape, and in this embodiment, the grip portion 17a is generally triangular in shape to make it wider and easier to grip. Furthermore, for the same reason as the grip 46, at least the grip portion 17a of the handle 17 is covered with an elastomer such as rubber.

[0036] The operation step display unit 13 shown in Fig. 3 illustrates five stages of operation steps of the fire hydrant device 1 during firefighting work. Each step illustrated on the operation step display unit 13 can be selected as appropriate as long as even a fire novice can reliably perform the operation step, but preferably the following operation steps are selected. Note that the illustrations of the operation steps are not limited to five stages, and more than five stages of operation steps may be displayed.

[0037] (1) Press the start button 60 of the control device 6 (P1). (2) Remove the nozzle 4 from the housing 2 (P2). (3) Open valve 50. (P3) (4) Grab the handle 17, pull the hose 3, and move towards the source of the fire. (P4) (5) Rotate the tip 40 of the nozzle 4 to open the nozzle 4 and spray water. (P5)

[0038] In conventional fire hydrant devices, the operation process during firefighting work is illustrated in three stages. It can be difficult for an operator who is not familiar with firefighting activities to understand the operation process of the fire hydrant device from a three-stage illustration, and therefore it is difficult to say that the operator can operate the conventional fire hydrant device reliably.

[0039] In contrast, in the fire hydrant device 1 of this embodiment, the operation process display unit 13 illustrates the work process of the fire hydrant device 1 in five stages, which enables an operator who is a novice in firefighting activities to more clearly understand the operation process, enabling the operator to more reliably operate the fire hydrant device 1. In this embodiment, the operation process display unit 13 is provided on the back surface 21a of the door 21, but it can also be provided on the front surface of the door 21.

[0040] Next, the work process during fire extinguishing work using the fire hydrant device 1 will be described. (1) Rotate and pull the lever 11 of the door 21 of the housing 2 to open the door 21. (2) The start button 60 of the operating device 6 is pressed to start the pump and supply the fire water W to the fire hydrant device 1. (3) Remove the nozzle 4 from the housing 2. (4) Turn valve 50 open and open fire hydrant valve 5. (5) Grasp the handle 17 and move towards the source of the fire while extending the hose 3. (6) When it arrives near the source of the fire, rotate the tip 40 of the nozzle 4 to spray the fire extinguishing water W as a spray S1. (7) If necessary, further rotate the tip portion 40 of the nozzle 4 to spray the fire extinguishing water W as a rod-shaped water spray S2.

[0041] In this case, the fire hydrant device 1 of this embodiment is provided with a handle 17 that the operator can grasp when pulling out the hose 3, and since the handle 17 is easier to grip and can be gripped more firmly than the nozzle 4, by gripping the handle 17 and carrying the hose 3, the hose 3 can be pulled out with less force, and even an operator who is an inexperienced firefighter can more easily perform the work of extending the hose 3. Therefore, the fire hydrant device 1 of this embodiment allows the operator to perform firefighting work more easily.

[0042] Furthermore, since cultural assets and the like are located outdoors, the ground may not be paved or may be laid as gravel, which can increase frictional resistance when dragging the hose. In conventional fire hydrant devices, this often makes the task of extending the hose more difficult, but in the fire hydrant device 1 of this embodiment, by providing a handle 17, it is possible to easily extend the hose 3 even in such locations.

[0043] Although the present invention has been described based on the above embodiment, the present invention is not limited to the above embodiment and can be modified as appropriate within the scope of the invention.

[0044] (A) In the above embodiment, the fire hydrant device 1 was designed to extinguish fires on cultural properties, but the target of fire extinguishing is not limited to this, and the target of fire extinguishing may be a commercial facility, office, public facility, medical facility, apartment building, or other facility.

[0045] (B) In the above embodiment, the nozzle operation display unit 41 only illustrates the spray water discharge S1, but it may also illustrate the rod-shaped water discharge S2. Furthermore, if the nozzle 4 is compatible with a water discharge format other than the spray water discharge S1 and rod-shaped water discharge S2, it is possible to illustrate that water discharge format as well. [Explanation of symbols]

[0046] 1 Fire hydrant device 2 Housing 20 Housing body 21 Door 21a Back 22 Back panel 23 Side panel 24 Top panel 24a Top surface 24b Eaves 25 Bottom plate 3 Hose 4 Nozzle 40 Tip 41 Nozzle operation display 42 nozzle body 43 shut-off valve 44 deflector 45 Valve seat 46 Grip 5 Fire hydrant valve 50 Valve 6 Operating device 60 Start button 61 stop button 7 lighting means 8 reflecting means 9 Pressure reducing valve 10 Hose guide 11 Lever 12 Indicator light 13 Operation process display section 14 Supply pipe 15 Opening / closing switch 16 Extension joint 16a Covering part 17 Handle 17a Grip F Flow path P Operation process S Spray W Fire extinguishing water

Claims

1. A fire hydrant device for extinguishing fires on cultural properties, A housing is provided in which a hose, a nozzle, and a fire hydrant valve are provided; an extension joint for connecting the nozzle and the hose; The extension joint is provided with a generally annular handle for carrying the hose when extending the hose from the housing to the source of the fire, The nozzle is a nozzle that can be switched between at least a weak spray of water and a strong rod-shaped water jet, and when fire water is supplied from the hose, by rotating the tip of the nozzle when it is closed, a flow path is created between the stop valve and the valve seat, and the spray of water jet begins first, and by further rotating the tip, it is possible to switch to the rod-shaped water jet, and this fire hydrant device is characterized in that it is possible to prevent the rod-shaped water jet from hitting the cultural property and causing damage to the cultural property.

2. The fire hydrant device according to claim 1, characterized in that the tip of the nozzle is provided with an elastomer grip to prevent it from sticking to the skin in winter, and the majority of the extension joint is covered with an elastomer covering.

3. A fire hydrant device as described in Claim 1, characterized in that the handle is arranged to extend upward from the extension joint and has an approximately triangular ring shape so that the gripping portion is wider and easier to grip.

4. The fire hydrant device according to claim 1, characterized in that a nozzle operation display unit is provided near the grip of the nozzle, which displays an illustration of an operation for switching between the spray water discharge and the rod-shaped water discharge.

5. A fire hydrant device as described in any one of claims 1 to 4, characterized in that the housing is provided with a door, and the door is provided with an operation process display unit that illustrates the operation process of the fire hydrant device during fire extinguishing work in five stages, and the operation process includes the process of pressing the start button of the operating device, and the process of grasping the handle, pulling the hose, and moving toward the source of the fire.

6. The nozzle has a nozzle body and the shut-off valve provided in the nozzle body, The shut-off valve is provided with a deflector, the nozzle body has a rotatable tip portion and the valve seat is provided downstream of the shut-off valve, the valve seat being capable of abutting or pressing against the shut-off valve; The fire hydrant device according to any one of claims 1 to 4, characterized in that the nozzle is configured so that the deflector can move back and forth by the shut-off valve moving in a spiral motion in conjunction with the rotation of the tip portion.

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